Construction resources Essay Example for Free

Construction resources Essay Construction resources make use of physics in many of their products. Two that I have picked are solar collectors and their use of insutation. Insulators have the purpose of preventing conduction, convection and radiation to unwanted areas. There are a wide range of techniques and materials used in doing this and I am going to look in depth at this idea. The company uses solar collectors in many different ways, their main purpose is to collect solar energy and heat energy. They can be used to heat and power many different appliances. Photovoltaic cells: Photovoltaic cells transfer the energy carried by the electromagnetic waves that make up sunlight directly to an electrical circuit in order to make a current flow. Light excites electrons to move from one layer to another through semi conductive silicon materials. Only a fraction of a volt is produced so a large array is needed to produce appreciable currents, usually about 20W to 100W. The Photovoltaic cells produce DC current so if alternate current AC is desired then an inverter is required. AC form is commonly available from the mains. Solar cells: Sunlight may also be used to heat water directly. This can be done in two ways, water can be circulated through pipes which run through the back of the solar cells, producing water at around 60oC suitable for household use. The other method is to focus sunlight from a large are to a small spot using an array of mirrors, this can produce temperatures of up to 4000oC and its quite feasible to produce power stations from this, however it has not been implemented yet. Here is on way in which the hot water can be used, this is quite economical and environmentally friendly. Solar panels are quite versatile and can be put on many roofs of simply in the garden, which makes them popular when it comes to heating swimming pools of hot water for showers. Any material that is a poor conductor of heat and electricity can be used as an insulator. Thermal insulating materials reduce the flow of heat between hot and cold regions. Thermal insulation may have to fulfill one or more of three functions: to reduce thermal conduction in the material, in which heat is transferred by electrons; to reduce thermal convection currents, which can be set up in air- or liquid-filled spaces; and to reduce radiation heat transfer, in which thermal energy is transported by electromagnetic waves. These are three ways in which heat energy can be transferred. Conduction, where heat energy is transferred through solid materials, metals are normally the best conductors. There are a number of factors that affect thermal conductivity. Increasing the area of the cross-section of the solid through which hear flows increases the rate of flow, however increasing the thickness of the wall decreases the flow of heat. Provided that a steady state has been reached (where the temperature of any point is not changing through time) then the rate of flow of heat ? Q/? t is given by: ?Q/? t A ? T/? x Besides the physical dimensions of the materials, another factor affecting rate of flow is the properties of the material, the Thermal Conductivity of the materials ? through which the heat energy is travelling is the constant of proportionality in this relationship, so:?Q/? t = -? A ? T/? x The units for thermal conductivity are watts per metre per kelvin. The Quantity ? Q/? t is called the temperature gradient. On my visit to Construction resources I noticed that they have used these Physical conclusions in there insulation. One in particular is Homatherm a wall and roof insulator. The slabs are thick which means less flow of heat, and have a thermal conductivity is only 0. 04 W/mK. Conduction in terms of particles: The particles in metals and non-metals are arranged differently, which gives them their different characteristics. In a non-metal the particles have forces between them that can be described like springs. When heat is delivered to the solid the oscillations of the particles being heated will increase in amplitude. For heat to be conducted the neighboring particles must also receive the extra energy, as particles oscillations increase in frequency the neighboring particles also gradually increase in frequency as heat is transferred to them. This is a very slow process. In a metal the arrangement is different, metallic boding occurs between metal atoms where a sea of delocalized electrons hold the positive metal ions together in a lattice. It is these free electrons that are responsible for the high conductivity character of metals. When a metal is heated the metals ions vibrate with an increase frequency. When an electron hits these ions with extra energy, they receive this extra energy and move faster. This electron can then travel to another parts of the lattice, to an ion that hasnt received any of this heat energy and collide with it, transferring its energy to this ion. Now that ion has extra energy and vibrates with a greater frequency. This process is a lot faster as there are many electrons in a metal lattice. U-Values: Architects and heating engineers use U-Values to calculate the flow of heat energy through building materials. The U-Values is quoted for a given thickness of a particular material, and is based on actual measurements made using the material. The U-Value is defined as: U-value = Rate of energy flow Area X Temperature difference Construction resources uses this knowledge of U-Values when designing building materials to reduce the energy wasted in the form of heat going out of the build and to achieve the ultimate goal of reducing CO2 emissions. But there are obvious limitations with reducing thermal conductivity, you can only reduce it to a certain amount, 0. 025 in air, so there will always be heat loss. Also too much insulation in the house will lead to what construction resources refers to as internal pollution. This has lead to construction resources researching in trying to lower the energy that is used to build and transport he construction materials. Bibliography: Microsoft Encarta Heinemann Advanced Science Salters Horners AS Advanced Physics Strengths and Limitations of Photovoltaic cells: Since one photovoltaic cell only produces a small fraction of a volt, large arrays are required to produce appreciable voltages. This requires a lot of space and the cells need to be in a place where no shadows will be cast on them. This limits what they can be used for. Also the amount of power produced by the photovoltaic cells directly depends on the amount of sunlight, so they cannot be relied on to produce power for something that constantly needs it. The only way this can be overcome is if some power was stored for a rainy day. But this again would take up space. Also an array of solar collector will be expensive and have a long pay back time. However it is environmentally friendly and after the pay back time, savings can be made. Also photovoltaic cells can be made look attractive depending on where they are placed. Strengths and Limitations of solar cells: The solar cells have similar limitations to the photovoltaic cells in regards to positioning and cost but a small array is only required to produce enough hot water for something like residential showers or central heating. This is economical and environmentally friendly and solar cells are quite versatile.

Biomedical and Biopsychosocial Models of Healthcare

Biomedical and Biopsychosocial Models of Healthcare Critical Evaluation on the Future of Healthcare: The Biomedical or the Biopsychosocial Model The Biomedical Model This model has been in existence since the mid-19th century and was predominant for physicians in the diagnosis of diseases. It comprises of four elements. It argues that, that health constitutes the freedom of pain, disease or defect which implies the normal human is healthy. In this model, the focus on the physical processes such as biochemistry, physiology and pathology of a disease do not take into consideration the role played by individual subjectivity or social factors. Unlike the biopsychosocial model, the biomedical model fails to consider negotiation between a doctor and patient in determining diagnosis. The main focus in this model is purely biological factors. It excludes social influences, environment and the psychological ones. Western countries have adopted it as a leading modern way for which health professionals treat and diagnose conditions. Regardless of the limitations that this model expresses, it has been critical in the development of programs to control infect ious diseases. In addition, it feeds more information to the biopsychosocial approach (White, 2009). The Biopsychosocial Model This is an approach that states that psychological, social and biological factors all play a key role in the human functioning in relation to illness and disease. Health is thus understood by concentrating on biological, social and psychological factors rather than entirely focusing on biological terms. It contrasts to biomedical model. Biomedical model takes the position that every disease process can be explained in accordance to deviations in normal functions such as injury, developmental abnormality in genes or virus (White, 2009). This model is used in the fields of medicine, health sociology and psychology and nursing. The acceptance, novelty and prevalence of the biopsychosocial model demonstrates variation across cultures. The model has been developing over time and will only mature further with health psychology designs and research. The Future of Healthcare The biopsychosocial model is at the heart of the future of healthcare. Specialization in healthcare has advanced to fields of health psychology, psychiatry, chiropractic, clinical psychology, family therapy and clinical social work. Majority of clinicians will engage the elements of biopsychosocial and biomedical models in the practices they engage in. However, it is arguable that all illnesses whether functional or organic can be managed best going by the biopsychosocial framework rather than the biomedical in practice. The two models seem to share the same goal which is improving the improvement of the patient’s well-being. What differs is the scope on which the physician considers impairment including its origin and the possible remedies. The biopsychosocial framework expands the meaning of this goal and applies it in clinical processes. Illness is approached as the subjective sense of suffering by the patient. The goal of managing the disease thus needs to identify the spe cific exposures of the patient which are biological, social and psychological. Potential Disabilities of the Biomedical Model The biomedical model will lose its position in the future of healthcare as it assumes that social and psychological processes are irrelevant to the disease’s process. The potential disabilities it exposes are massive. It mainly has three liabilities. First, the model is reductionist in nature. It reduces illness to lower level processes. These include chemical imbalances and disordered cells. It thus fails to recognize the general role of psychological and social determinants. Secondly, the model is a single-factor model. The explanation for illness is in terms of biological malfunctions rather that recognition of a variety of factors with only a few being biological in the causation of illness. The third liability is that the model assumes a mind-body dualism. It maintains that the body and mind are two separate entities. The final but not least liability is that the model puts more emphasis on illness over health. The focus is aberrations that cause illness instead of the co nditions that would promote health. Advantages and Clinical Implications of the Biopsychosocial Model Medical care, illness and disease are interrelated processes. They involve interaction of changes both within the individual and other levels. Researchers are thus impelled by this framework toward an interdisciplinary collaboration and thinking. The model maintains that the diagnosis process should consider the interacting roles of social, psychosocial and biological factors. This calls for interdisciplinary team approach in making a diagnosis. Health psychology should adopt this model and involve all the three factors. Therapy is thus uniquely targeted to a particular individual considering their health’s totality and ensuring treatment recommendations capable of dealing with more than one problem systematically. Therefore, a team approach is encouraged as the best approach. The relationship between a doctor and a practitioner is emphasized by the biopsychosocial model. The efficacy of treatment, the rapidity of solving an illness and the patient’s service usage can be improved by an effective practitioner-patient relationship. The biopsychosocial model makes the implication that the physician must have a clear understanding of the psychological and social factors that make contributions to an illness in order to come up with ample treatment (Kim,2014). For a healthy individual, the model is of the opinion that their health habits can only be understood in social and psychosocial contexts. When an individual is ill, recovery can be influenced by psychological, biological and social factors. These factors may maintain poor health habits but when there is appropriate modifications, they facilitate healthy ones. Biopsychosocial Perspectives Psychosomatics, Behavior and Health Depression, social isolation, conscientiousness and chronic stress are all understood by medical colleagues and health psychologists alike in the impacting of the vulnerability and the protection of various diseases. There is a consistent correlation of clinical depression with pathogenesis and occurrence of cardiovascular diseases. In a study in 2009, Salomon examined the existing differences in reactivity of cardiovascular to and recovery from two lab stressors between healthy controls with no self-reported history of CVD samples and naturalistic samples of clinically depression (Nezu, 2013). With previous research demonstrating significant behavioral associations and psychosomatic among illness, health and disease, the BPS model should focus on bringing into play analytic complexity fighting individualistic. Review of neuroplasticity, socio-somatic and psychosocial genomics will assist in balancing individualistic bias for health psychology, provision of sophisticated and adequate understanding of the cultural and social contours underlying illness and health thus fostering a greater integration among domains of bio-psycho-social. Psychosocial Genomics and Neuroplasticity Advances in genetics and molecular biology have given way to the map out of human genome. There have been spectral and technological imaging advances such as allowing of examining complex neurological processes and functional magnetic resonance. These movements in science have resulted to empirical investigations, psychosocial genomics and neuroplasticity which thus offers important evidence in relation to the interdependence nature of socio-cultural, biological and psychological processes. Research on neuroplasticity goes further to justify the biopsychosocial framework. This is because, the study indicates that the brain neurons are more dynamic than had previously been considered. They develop novel synaptic connections in response to learning and experience across age and mainly the entire life (Kim, 2014). Biopsychosocial further elaborates on the impact of social support. Within many studies, more satisfying social relationships or confidants result to an individual recovering more quickly from illnesses and diseases as compared to those with minimal social support. Culture in the Biopsychosocial Model Culture evolves over the years. It carries with it vagueness and contention. Culture is informatory. It influences every founding block of the BPS model. Failure to demonstrate adequate to the key role of culture in health psychology and related medical fields would result to the discrimination in health service delivery. For a more holistic approach therefore in heath psychology, culture should be considered seriously in attempts to integrate the BPS model. Biopsychosocial Model Transformations and the Future: Health Psychology Health psychology’s emergence together with behavioral medicine in primary care settings and general practitioners training on various health paradigms have resulted to an awareness for which patients now understand that the medical providers view them as a person and not merely by the disease. For the past two decades, the research of health psychologists and the behavioral interventions have matured greatly together with high criticism. Patient quality of life and wellness has been observationally been improved by the humanistic view by the psychologists. To fully solidify the role of combinatory treatments and psychologists, it is necessary to conduct long-term empirical studies. Doctors however question the motive of the alteration of medicine for the incorporation of behavioral interventions which tend to increase the workload of the physicians who are already strained. Research, vast knowledge on behavior education skills are applied by psychology practitioners should be used in the promotion of a medical care that is more hospital co-managed. Health care and societal transformations constrain psychology from change. Psychology seeks to deliver expansion on the special skills of health and clinical psychology. Psychopharmacology is the latest intervention in the creation of a psychologist practitioner who is independent. Psychologists must look for and maintain an inter-professional collaboration with physicians in order to ensure prescription authority and psychology. The psychosocial aspects of medical problems are then addressed. Quality of treatment may be affected by poor relationships between physicians and psychologists. Collaborations and partnerships in the management and diagnosis of all health will be observed in the decades to come. Training programs in health psychology will increase in terms of quantity. There will be specialization for students who have interest in the practice of research, clinical and education settings (Kim, 2014). The policy makers and the professionals such as teachers require training and education on the biopsychosocial model. The impact of this on healthcare would be the reduction of health costs, improved occupational control, promotion of self-empowerment, provocation of behavioral change and an increment in adherence to plans of treatment. Integrated healthcare will eventually address the complete spectrum of the mind and the human body as one and the same. A Holistic Approach in the Application of the Biopsychosocial model in the future of Health Psychology The biomedical model of disease and health is dominant in the existing medical practices. The approach is effective mainly in the control of infectious maladies. Chronic non-infectious diseases require the BPS approach. The approach takes into account other health determinants. That thus takes the BPS model a step further into the better approach than the biomedical model. However, a more holistic approach in the biopsychosocial approach is one that integrates culture into the focus of biological, psychological and biological aspects. Taking culture into the picture for the future will result to a more holistic approach. The future health research programs and intervention strategies should endure at considering all the domains and that will be a holistic approach. The BPS model will keep on maturing with time. To this regard therefore, there should be an examination of the effectiveness of cultural, social, biological and physiological claims. It should be conducted in clinical practice exploring the health concepts from perspectives and questioning perspectives could influence the current and future trends in health interventions and health promotion. Conclusion The future of health care lies more on the biopsychosocial approach more than the biomedical one. However, as demonstrated in the research and advancements in the health psychology, there are still aspects of the BPS model that could be involved in the future. One of them could be an increased collaboration and participation amongst psychologists and physicians. They should collaborate to ensure that wellbeing is attained by effective application of the model. The aspect of culture should also be included in the framework to ensure that the health services are acceptable in various communities. Clinical implications are at the heart of the improvement of the biopsychosocial approach. Health psychology and biomedical research will act as key building blocks in the future role of the model. References Kim, P. (2014, March 22). Report Summarizes Health Psychology Study Findings from Northeastern University. Psychology Psychiatry Journal, 456, 33-67. Nezu, A. M. (2013). Health psychology. Hoboken, N.J.: John Wiley Sons. Piotrowski, C. (2012, September 1). Occupational Health Psychology: Neglected Areas of Research. Journal of Instructional Psychology, 675, 44-65. Sheridan, C. L., Radmacher, S. A. (1992). Health psychology: challenging the biomedical model. New York: Wiley. White, P. (2009). Biopsychosocial medicine: an integrated approach to understanding illness. Oxford: Oxford University Press.

Challenges and Opportunities of the Ethiopian Coffee Sector

Challenges and Opportunities of the Ethiopian Coffee Sector Coffee farmers all over the world face different challenges related to the availability, cost and quality of labor, land, water, inputs, access to reasonable production credit, and proper technical advice in response to diseases and pests. Ethiopia has a reputation of high quality coffee due to its branded varieties of coffee. But, most of the coffee farmers in Ethiopia are not capable of getting the benefits connected with production and marketing of a finest quality product. There is production, processing, storage and functioning of domestic and international market related constraints for this fact (ODI, 2009). Regardless of huge potential for collective production of coffee in Ethiopia, the average yield per hectare remains very low at 0.72 metric ton per hectare. Abu and Tedy (2013) revealed three major factors for the basis of low coffee production. First, there is a direct and increasing competition of Khat (Cata edulis), a plant with mild narcotic effects, with coffee for farmlands in different areas of the country particularly in the Hararge region. Khat is chosen by many farmers because it is more profitable and brings a consistent income during the year. Second, the farm management system of coffee and the agronomic practices in Ethiopia are traditional. In addition to this, coffee producing farmers do not get adequate extension services. Lastly, there is no specialized institution that offers extension support for production of coffee in the country. According to Taye (2010), in Ethiopia, there are several attributed factors for the low level of average production and income of coffee by the world standard. These includes insufficient credit and distribution of input devices for coffee growing farmers, principal use of conservative husbandry and processing as well as unimproved local coffee landrace practices, which in turn extremely hinders the national production and productivity of coffee produced by small-scale farmers in the country. Harvesting, post-harvest storage and processing is important in order to assure the quality of coffee. Non-selective picking practice is common by smallholder farms which contributes to poor quality coffee regardless of whether it is wet or dry processed. In addition, sorting and grading of coffee berries before further processing is a practice that is long forgotten among most smallholders because of low net earnings, high cost of labor and lack of incentives for high quality coffees. Most of the coffee growing farmers in Ethiopia have traditional and temporary storages which have its own negative effect to maximize the quality of coffee, with implications for price, profit and income (ODI, 2009). The conventional coffee value chain in Ethiopia involves a large number of intermediaries and is largely state-controlled. Licenses are required for every function in the market chain (Petit, 2007). The Ethiopian government issuing licenses for direct export has changed recently. The former system was exposed to rent seeking and political control and did not offer an inducement for quality. Coffee deliveries for export markets have adversely been affected by lack of price incentives to farmers, fluctuation of production supply due to climatic variations and unstable prices (ECX, 2009). According to the Ministry of Agriculture (2013), the Ethiopian coffee sector faces persistent challenges. The major ones include very low quality control, the deficiency of a strong coffee seed supply system, inadequate consideration to the input credit provision for efficiency and quality enhancement, and lack of strong vision and path in order to support the coffee sector. Limited use of enhanced technology; land degradation and population pressure; limited access to inputs such as fertilizer, seeds, credit and irrigation; and high costs of quality coffee production and processing are also mentioned as the major challenges of the coffee sector of the country (Taye, 2013). According to Jim and Ruth (2012), the challenges to the coffee sector in Ethiopia looked devastating. They pointed out the constraints as low and inconsistent coffee quality due to poor processing; regulation of export sales through a national auction that mixed coffees from different places into a single portion and forbidden cupping earlier to sales; coffee cooperatives were technically and institutionally weak; loan capitals for production, processing and marketing investments in were absent; and lack of international market demand understanding leads to focus on quantity rather than quality. Despite the challenges, there are several opportunities of the coffee sector in Ethiopia. The country has fertile soil, optimum temperatures, sufficient rainfall and suitable altitude for coffee production. It has diverse agro-ecology and climatic conditions, genetic biodiversity and sole distinctive characters of quality coffee. Fine specialty coffee can be produced and supplied sustainably, with producing potentially all the various types of coffee in world coffee cultivating origins. Ethiopia has an ordinary benefit in organic coffee markets as over 90% of coffee production is de facto organic (Mekuria et al. 2004). Moreover, Ethiopia is the only producer of natural forest coffee Arabica, providing scope for shade-grown coffees sale, for instance, through the certification of Rainforest Alliance. The government’s decision to allow cooperatives to directly export is significant because it opened a potentially new channel of value chain for export of coffee (USAID, 2010). Positive image of the country as origin of coffee and a strong indigenous coffee culture, well established coffee brand, prospective for expansion of volume and quality coffee due to existence of adequate land and low-cost labour, high commitment of government and favourable policy environment are among the major opportunities of the coffee sector in Ethiopia (Ministry of Trade, 2013). CHAPTER THREE MATERIALS AND METHODS This chapter presents a brief profile of Ethiopia, describes the study area, the type of data collected, sampling procedure followed and analytical methods used to analyze the data. 3.1. A Brief Profile of Ethiopia Ethiopia is among the countries that have a history of early civilization.It is the only African country never been colonized. It was previously known as Abyssinia. It is geographically located in the Horn of Africa, 3 and 14.8 latitude and 33 and 48 longitude. The country is bordered by Eritrea to the north, Kenya to the south, South Sudan and Sudan to the west and Djibouti and Somalia to the east. It is the second most populous country in Africa with over 91,195,675 (2012 est.) inhabitants. It covers an area of 1,104,300km2. Addis Ababa is the capital city, also known as â€Å"the political capital of Africa†. Ethiopia is a mountainous and landlocked country. It is situated at an altitude that ranges from 4620 meters above sea level at Ras Dashen in the Northern part of Ethiopia to 155 meters below sea level in the North east where the great Danakil depression is situated. The climate condition is hot in the lowlands and temperate in the highlands. Temperature ranges from 10oc to 30oc while rainfall ranges from 200mm to 2000 mm per year. Ethiopia is basically stated as the â€Å"water tower† of Eastern Africa for the reason that several (14 major) rivers that discharge off the high plateau, including Blue Nile river. The country has the highest water reserves in Africa, but it is not utilized through irrigation systems. It is only 1.5% used for irrigation and 1% for power production. Ethiopia is a multilingual and multi ethnic country in which around 86 ethnic groups are found. The majority of the population is Christian while a third of it is Muslim. The official language of Ethiopia is Amharic, even if English, Italian, French and Arabic are fairly spoken. Ethiopia uses a slightly modified form of the Julian calendar, which consists 12 equal months of 30 days each and a thirteenth month of five days (six days in a leap year). The Ethiopian calendar is eight years late with the Gregorian (Western) calendar from September 11 to December 31 and seven years in the rest of the year. Ethiopia is an independent republic functioning under the Federal Democratic Republic of Ethiopia (FDRE) constitution. The President is head of state whereas the Prime Minister is the head of government. The country is divided into nine autonomous regional states and two special city administrations. The two cities administrations as well as the nine national regional states are further divided into 800 Woredas/districts and around 15,000 Kebeles (5,000 Urban and 10,000 Rural). Agriculture is the foundation of Ethiopia’s economy, responsible for 45.6% of GDP, 80% of employment, 80% of exports and 52% of exports for foreign exchange. Industry and services cover 13.4% and 41% of GDP respectively. Coffee, pulses, oil-seeds, hides and skins, khat, cut flowers, gold, meat, live animals and textile garments are major export items of the country. Rural Ethiopia contains about 84% of the country’s population. Banking, insurance and micro-credit industries in Ethiopia are regulated to domestic investors; however the country has attracted substantial foreign investment in leather, textiles, manufacturing and commercial agriculture. All the land is owned by the state which is state in the constitution. The government provides long-term leases to the tenants and distributes the land use certificates which help the tenants to have more recognizable rights to persistent possession and hence make more rigorous efforts to expand their leaseholds. According to the IMF report (2012), the growth of Ethiopian economy was one of the fastest in the world. The country registered over 10% economic growth for six years between 2004 and 2009.It was a non-oil-dependent economy in Africa with the fastest-growing rate in the years 2007 and 2008. However, thegrowth has slowed temperately to 7%in the year 2012 and is projected to be 6.5% in the near future.The country faces high inflation challenge and balance of payment difficulties. Inflation is projected to be at about 22 percent for the year 2011/12. The economy still faces a number of serious structural problems. The per capita income of the country is one of the lowest globally even if the GDP growth has remained high. There is low productivity of agriculture and frequent droughts which strictly affected the country. 3.2. Description of the Study Area: Mana District of Jimma Zone This study was conducted in Manna district of the Jimma administrative zone in the Oromia Regional State of Ethiopia. The area was selected on the grounds that these villages would provide a picture of the range of production and employment options available to households in a coffee producing area, with reasonably good links to the wider economy. They also needed to be accessible during the rainy season when the study was carried out. Oromia Regional State has 12 administrative zones and 180 woredas. It is the largest Regional State in Ethiopia in terms of population and area. It covers an area of 367,000 km2 (about 30% of the total area of the country) and a population of more than 26 million inhabitants (35%). From the total population, 88 percent lives in rural areas where the average household size is 5 persons and 35 percent lives below the absolute poverty line (CSA, 2008). Agriculture is the backbone of the economy of Oromia region. It is considered as fragmented and subsistence farming. The majority of the farmers depend on coffee. Farmers producing â€Å"Arabica† coffee in Oromia region are 424,309 and 95 percent of the production is done by small-scale farmers. From the total amount of marketed coffee that is produced in the region, 85 percent is sun dried or unwashed (IPMS, 2007). Jimma zone is one of the 12 administrative zones in Oromia Regional State. It is located in the Southwestern part of Ethiopia between 7 ° 13’ and 8 ° 56’ N latitude, and 35 ° 52’ and 37 ° 37’ E longitude. It has an area of approximately 19,300 Km ². Jimma town which is 335 Km southwest of Addis Ababa, is the capital and administrative center of the zone. Its population is around 2.4 million, of which approximately 5% lives in Jimma town. Crude population density is 106 persons per km2. There are approximately 644kms of all-weather roads and 447km of dry weather roads in the zone (CSA, 2008). The Altitude of Jimma zone varies from 880 to 3,340 meter above sea level. The topography includes dissected plateaus, mountains, plains, hills, gorges and valleys. There are many intermittent streams and perennial rivers. The zone is characterized by its humid tropical climate with heavy annual rainfall ranging from 1200 to 2400 mm per year, with a long rainy season from February/March to October/November. The temperature ranges from 25 to 30 °C with a minimum temperature of 7 °C. The agro-climatic divisions of the area are classified as Kolla (14.9% lowlands), Woinadega (64.4% mid highlands) and Dega (20.5% highlands). High forest, shrubs, woodland and man-made forests are found in the zone. Out of the 13 Woredas of the zone, only 7 focus on coffee production. Manna, Gomma, Limmu Seka and Limmu Chekrosa woredas are well-known as mainly coffee growing areas (Jimma Zone Agriculture, 2010). Manna Woreda is one of the 13 woredas of Jimma zone known for its predominant coffee cultivation. It is located between 7 °46.5 and 7 °51.5 in North while 36 °40 and 36 °42 in East and found in central parts of the zone. The woreda is located at 35 km west of Jimma town and about 6 km from Yebu town which is the woreda capital. The total area of the woreda is 480 km2 (48,000 ha) of which 12% is highland, 65% intermediate highland and 23% lowland. It lies between 1,470 and 2,610m altitude. It has an average annual rainfall of 1500 mm with mean average temperature of 19oc (ARDO, 2008). It occupies loamy soils with production of coffee, cereals and vegetables. Coffee accounts for 80% of the production. Distric Nitosols and Orthic Acrisols are the dominant soil types with slightly acidic PH, which is suitable for coffee production found in the woreda (ORG, 2003). Manna Woreda (district) is most densely populated district in Jimma zone with 308 persons per Km ². The total population of the woreda is estimated at 146,675 inhabitants (CSA, 2008). 89% of the district area is arable (with 86% under cultivation), 2.7% is grazing and 2.8% forest lands. The major cash crop commodities which are cultivated in the district include coffee, chat (Catha edulis), tropical and sub-tropical fruits (mango, avocado, papaya, banana, orange, pineapple) and spices (mainly ginger and Ethiopian cardamom). Among cereals, maize, teff, wheat, barley and sorghum are grown in the area; amongst of which, maize is the dominant cereal crop in the farming system. Livestock commodities include cattle, small ruminants (sheep and goat), apiculture, poultry and equines. Lady bird beetle, Stalk borer, ape, pig, warthog, and porcupine are major crop pests. Compared with other woredas in Jimma zone, Manna has a high population density, smaller size and relatively better access t o infrastructure and services (IPMS, 2007).

Process Of Law (short) :: essays research papers

Process of Law   Ã‚  Ã‚  Ã‚  Ã‚  A law trial begins when a party brings suit against another party, or several parties. A request for jurors is sent out, and a list of possible jurors is created. The defendant(s) for both parties may now filter out jurors through the list, in two different ways.   Ã‚  Ã‚  Ã‚  Ã‚  The first, For Cause, means a juror is dismissed because they are or were employed by or related to one of the parties. If reasonable legal reason exists, there is no limit to how many times a For Cause challenge can occur.   Ã‚  Ã‚  Ã‚  Ã‚  The second type of challenge a lawyer can make is called a Peremptory challenge. Each party is allowed a certain number of challenges that dont require a reason.   Ã‚  Ã‚  Ã‚  Ã‚  After the jury is selected (6 or more in Circuit Court civil cases and Probate cases, 12 or more in Circuit Court criminal cases), the trial convenes and the opening statements of the defendants is heard. The opening statement is typically used to show what their party claims, and outlines what evidence is going to be used in the trial.   Ã‚  Ã‚  Ã‚  Ã‚   After both opening statements are heard, the evidence is presented to the court. Evidence can be a document, or a photo, or some other physical object. The major form of evidence is testimony, which is made by the witnesses. Some evidence can be restricted from being introduced if it prolongs the trial too much, or is not completely believable.   Ã‚  Ã‚  Ã‚  Ã‚  Once all the evidence has been presented, and all witnesses heard, the closing arguments are heard from the defendants of both parties. This basically outlines and underlines the evidence and the testimony.   Ã‚  Ã‚  Ã‚  Ã‚  The jurors then retire to the jury room to discuss the case.

Robert A. Millikan :: biographies biography bio

Robert Andrews Millikan was born on the 22nd of March, 1868, in Morrison, Ill. (U.S.A.), as the second son of the Reverend Silas Franklin Millikan and Mary Jane Andrews. He led a rural existence in childhood, attending the Maquoketa High School (Iowa). After working for a short time as a court reporter, he entered Oberlin College (Ohio) in 1886. During his undergraduate course his favourite subjects were Greek and mathematics; but after his graduation in 1891 he took, for two years, a teaching post in elementary physics. It was during this period that he developed his interest in the subject in which he was later to excel. In 1893, after obtaining his mastership in physics, he was appointed Fellow in Physics at Columbia University. He afterwards received his Ph.D. (1895) for research on the polarization of light emitted by incandescent surfaces - using for this purpose molten gold and silver at the U.S. Mint. On the instigation of his professors, Millikan spent a year (1895-1896) in Germany, at the Universities of Berlin and GÃ ¶ttingen. He returned at the invitation of A. A. Michelson, to become assistant at the newly established Ryerson Laboratory at the University of Chicago (1896). Millikan was an eminent teacher, and passing through the customary grades he became professor at that university in 1910, a post which he retained till 1921. During his early years at Chicago he spent much time preparing textbooks and simplifying the teaching of physics. He was author or co-author of the following books: A College Course in Physics, with S.W. Stratton (1898); Mechanics, Molecular Physics, and Heat (1902); The Theory of Optics,with C.R. Mann translated from the German (1903); A First Course in Physics, with H.G. Gale (1906); A Laboratory Course in Physics for Secondary Schools,with H.G. Gale (1907); Electricity, Sound, and Light,with J. Mills (1908); Practical Physics - revision of A First Course(1920); The Electron(1917; rev. eds. 1924, 1935). As a scientist, Millikan made numerous momentous discoveries, chiefly in the fields of electricity, optics, and molecular physics. His earliest major success was the accurate determination of the charge carried by an electron, using the elegant "falling-drop method"; he also proved that this quantity was a constant for all electrons (1910), thus demonstrating the atomic structure of electricity. Next, he verified experimentally Einstein's all-important photoelectric equation, and made the first direct photoelectric determination of Planck's constant h (1912-1915). In addition his studies of the Brownian movements in gases put an end to all opposition to the atomic and kinetic theories of matter.

Market Leader vs Market Followers

The article is aiming to study how big brands are losing their market share & what changes they are bringing in their marketing strategy to cope up with the current market scenario or to regain their market share. This study is focused on leadership in Indian market on various segments, Brand loyalty, and brand differentiation. This study focus on current market scenario with changing trends of market share in various segments. Introduction Competition essentially means a fight and a monopolist enjoys a hold over the market and has control over price and customer. With the adoption of pro-competition policies by the government – Air India have been exposed to constantly losing market share in favor of private carriers like Kingfisher, Jet airways, Air Sahara, Spice Jet, Lufthansa and others. It is tough condition for the marketers, because if you are inefficient, the market forces would edge you out of the marketplace. Hence, competition means hard work. It is a constant struggle to outperform the rivals. Competition is consumer friendly, but not market friendly. Binaca is a brand that existed only in yesteryears.Binaca could not compete with the market competition & finally failed. The most remembered thing about Binaca is its conversion to Cibaca. So, why the company re-launched Binaca and not Cibaca? Cibaca changed the brand name Binaca to Cibaca when it was sold to another company. While Dabur bought Binaca, Colgate Palmolive bought Cibaca. Dabur has launched Binaca and now we have both Binaca and Cibaca in the market. (Though Binaca was toothpaste and Cibaca is currently being sold only as a toothbrush.) Brand is re-launched to leverage on past brand equity. Kelvinator India refrigerators has led a yo-yo type life till now. There have been frequent changes of ownership, which also included an 18-month stint with the enemy, Whirlpool. Worldwide, the Electrolux brand owns Kelvinator. During the period 1997-98, when Electrolux was just entering India, it did not have the capacity to hold on to the sales of Kelvinator. It had to sell it to Whirlpool to sustain sales. Whirlpool took advantage of the situation and milked the brand in that time. After the stipulated period of 18 months, Electrolux took it back. Since then, it has been contributing to a steady 65-70% of the company's revenues, a successful re-launches. Electrolux saved on a lot of costs it would have probably incurred had it launched a new brand. One of the most important assets that the marketer can possess is the trust of the customers. A brand is the interface between the marketers and the customers. It signifies the touching point between the marketing efforts and its effect on customers, either positive or negative. As the marketers are trading on the slippery ground, if they compromise on quality they can’t prevent consumer to switch brand to another. According to Rap P, Stan and Tom Collins, in their book –The great Marketing turn grounds- â€Å"The ability of the manufacturers to copy one another’s most successful product and the brand hopping encouraged by the tempting discounts may be seriously weakening the grip of the loyalty in many categories† Erosion of the brand loyalty has become one of the serious concerns now. The magazine ad week’s marketing week of US suggests that â€Å"The belief that once consumers buy a brand, they will stay there, is not true. The percentage of consumers who wished to stick to major brands dropped from 80 to 60 percent during an eight year period†. In today’s market scenario; the leaders are losing their market share & turning to followers for the sense of emergency. â€Å"Eye-catching colors and gee-whiz features aren't enough for successful products and services today. To rise above the ‘sea of sameness’, companies need to be different in a way that is elemental—and game-changing. According to HBS professor Youngme Moon.† Brand Loyalty Brand loyalty is harder to come by today as different brands are coming with too many choices and not with enough differences. Well known brands command a price premium. Japanese companies such as Sony and Toyota have built a huge brand loyal market .At the same time, developing a branded product loyal to the customer requires a great deal of long term investment, especially for advertising, promotion & packaging. Woodland is a brand that has built its brand equity on the pillars of being sturdy and durable with futuristic designs. It has also forayed into apparels and accessories. To maintain their positioning in the mind of consumer the brand has also introduced more specialized products like Yoga collection, Kids collection and the Woods collection. The brand has customized products for the adventure enthusiasts and keeps adding new technologies to make their products the ideal choice for all adventure lovers. Now, the brand has been focusing on eco-friendly products and uses raw materials that are less harmful to the environment. We’re familiar with the acronym WIIFM, which stands for â€Å"What’s in it for me?† This is the exact question that the consumers are asking themselves, and the brands need to be able to answer them properly. If they are unable to do the same the consumer will switch from one brand to another. The economics of customer retention makes a compelling case for relationship marketing. It costs approximately five times more to attract a customer than to keep a customer. So losing market share is very serious issue for market leaders at present. Brand Loyalty is the consumer's conscious or unconscious decision, expressed through intention or behavior, to repurchase a brand continually. It occurs because the consumer perceives that the brand offers the right product features, image, or level of quality at the right price. In today’s marketing environment, market advertisers are trying to break consumer habits, and helping them to acquire new habits, and reinforce those habits by reminding consumers of the value of their purchase and encourage them to continue purchasing those products in the future. The proactive approaches of rivals are compelling the market leaders to lose their market share. Brand Differentiation The brands want to remain differentiated from other brands; they will survive in the market & enjoy customer loyalty if they’ll be able to position themselves different from their competitor in the mind of consumer as well as in the market. Brands are investing on their advertising & promotion to differentiate themselves from others. FMCG major Dabur has undertaken a 360 degree rebranding exercise for its brand Real and has introduced new packaging, a new brand ambassador and communication activities. The company has reportedly spent close to Rs 7-8 crore on the whole exercise. Currently, the brand is going ahead with the 360 degree communication plan, which includes innovative OOH campaign in select cities, in-cinema advertising, TVC, radio, DTH for the very first time and print advertising, to remain differentiated from other brands. There are various ways they can achieve this aim. The brand differentiation is basically brought by positioning of brands. , some of the world's most iconic brands are starting the year with a new look. ITV has ditched its yellow and blue boxes, computer chip maker Intel has introduced a new strapline, and telecommunications giant AT&T has undergone a facelift.Airtel has taken the leap and revamped its logo, and the brand is on media overdrive to drive home the point about its new avatar. Brand differentiation can also be achieved by unique selling position of the brand and for increasing the brand value and brand equity. For every business, the health of its brand is key to its success. â€Å"The brand is the emotional heart of the business,† says Clare Salmon, director of marketing and strategy at ITV. â€Å"If the heart stops beating, the beast is going to die.† Differentiation attacks the fundamental basis of competition. It makes the product dissimilar and hence, less substitutable.† A general class of products is differentiated if any significant basis exists for distinguishing the good or service of one seller from that of another. Such a basis may be real or fancied, as long as it is of any importance whatever to buyer, and leads to a preference for one variety of the product over another.† According to Chamberlin, Edword, The theory of monopolistic competition, Cambridge, Mass, Harvard University Press, 1956.p.66. Current Market scenario.

Offset Printing History

1 History of Printing Presses Printing is a method of transferring an image to surfaces for the purpose of communication. A printing press is a mechanical apparatus for applying pressure to an inked surface resting upon a print medium. The invention of the printing press is considered as the most influential event in the second millennium revolutionizing the way people learn and communicate. Rubbings from stone inscriptions were an early reproduction method in which images were carved into stone, similar to the gravure process.The substrate, which was a thin strong paper, was moistened to make it soft . A kind of adhesive is placed on the surface of the stone. The paper is placed over the surface of the stone and a stiff brush is used to rub the paper over the stone and into every depression of the stone. Ink is applied over the paper after it was dried. The paper is peeled off from the stone and a reversed image within black ink was revealed. Stone rubbings were used to print books, especially religious texts and historic classics. Drawing materials include charcoal, inksticks, graphite and wax.Seal Printing and the Origin of Letterpress Printing The Chinese also used a method of reproducing images that is similar to our present-day rubber stamp method (Fig. 1:1) called seal printing. Before seal printing was invented, the Chinese used a receipt-like system to transact business. Two ends of a bamboo stick were written in duplicate for a particular business transaction. When the transaction was completed, the bamboo stick was broken and each member would receive a record of the transaction. For nobility, the emperor provided a token of jade.The jade was broken and one half was given to the subject and the other half kept by the emperor. A seal stamp made of clay eventually replaced the tokens. One method of seal stamping was to force an impression into a surface with the seals. The other method was to ink the seal and transfer the wet inked image to a substrate . Presswork and Bindery Processes 1 An early form of seal printing was the use of signet stones. These stones were used in Babylon and other ancient countries as an alternative for signatures and as religious symbols. These stones or devices consisted of seals and stamps for making images on clay.The stone, often located on a ring, was dabbed with pigment or mud and then pressed against a smooth surface to make an impression. Fig. 1:1. Chinese seal and print. Fig. 1:2. Chinese ink stick. Block Printing in China The Chinese developed a method of printing in the fifth century in which a wooden block was used to reproduce images on certain surfaces over and over again. Wooden blocks were made from coniferous wood, honey locust trees, jujube trees, boxwood, and date and pear trees. Each tree had advantages and disadvantages as far as printing was concerned.The coniferous wood trees had a problem of uneven printing because of resin that was impregnated in the wood. If delicate and fine l ine images in illustrations were required, the honey locust tree was used. For text, the soft boxwood was used, while the pear tree provided the best wood to use for various types of images, followed closely by jujube and date trees. Blocks were soaked in water for about a month after they were cut. If the blocks were needed in a hurry, they were boiled, left to dry, and then planed on both sides. Some printers used both sides of the blocks.The printer had to cut away all portions of the block except the image area (Fig. 1:3). All images had to be carved backwards so that when printed on a substrate, the images would appear correctly for reading. The wood carver had to be very skillful in carving text and illustrations backward. These blocks marked the invention of letterpress printing. The non-image areas of the block are below the surface of the form, and the image areas are on the surface of the form. The printing method was simple. Ink was rubbed on the surface of the form with a brush (Fig. 1:3).A sheet of paper was then placed over the form with gentle pressure so it could receive the images . A dry brush was used to press the sheet against the form. It must be noted that the original paper was so thin that usually only one side was printed. Because the paper was very translucent, blank sides of the printed sheets were placed back to back in publications. 2 Presswork and Bindery Processes Fig. 1:3. Chinese wooden block printing. Fig. 1:4. The Diampond Sutra. A color technique was developed during this time. Color separated blocks were carved and printed in register with other color-separated blocks and text as well.This was the first attempt at multicolor printing. An important invention in printing technology occurred during the Song Dynasty. It was the invention of movable-type printing. A commoner by the name of Pi Sheng used movable-type blocks for printing during the Qingli years (1041-1048) of the Northern Song. This invention ushered in an era of movable-type printing and is a significant milestone in the history of printing. This invention soon died in China because it was very complex. The invention soon found its way to Europe in the fifteenth century. Movable TypeAn alternate method of reproduction called movable type was developed in the eleventh century in China. This method was established well after the wooden block method, which came around the fifth century. Movable type consists of individual letters, characters, and symbols creating a language or an alphabet (Fig. 1:5). These elements could be used in the printing of one form, and then be taken apart and used to print other forms. The thousands of different characters in the Chinese language made the use of movable type cumbersome and slow. The Chinese writing system was a pictographic and ideographic method of communication.The Chinese alphabet system consisted of almost forty-thousand characters. Each character represented something in real life such as trees, animals, and pottery. Pi Sheng is given credit for the invention of movable type. He used clay and carved individual characters. The carved letters were put into fire to harden them. A metal frame with a mixture of wax was used as a base for evening out the surface of the type. The typefaces were set close to each other to make up a form of type. The entire block of type was then forced into the waxed metal tray and planed down with a smooth board after the wax was melted down in an open flame.Presswork and Bindery Processes 3 Pi Sheng reasoned that each type or character was to be used over and over again. One advantage of the movable type method is that characters could be deleted or inserted without throwing the entire form away. Fig. 1:5. Chinese movable type. Fig. 1:6. Movable type printed document. The Middle Ages in Europe Before 1450, the majority of books in Europe were produced by the arduous task of manuscript writing and recopying. The few exceptions were books that were printed by the wooden-block method, which was introduced into Europe by the year 1400. This slow, laborious process required skillful workers.Block printing was also used for illustrations in books (Fig. 1:3) and in the printing of playing cards. During this era, a period that saw little or no advancement in the arts or sciences became known as the Dark ages. This period was also marked by a lack of communication. Monks, who worked in monastery rooms called scriptoriums or writeries, produced the majority of books written during the Dark Ages. The religious scribes were responsible for the recording of history and the production of books, as well as most other intellectual activity during this period. The bookmaking trade was highly specialized.Books were elaborately decorated with colored initials, and they often displayed special gems, precious stones, and gold on their covers. Books were scarce and the average person could not afford them. In addition, most people could not read or write in Europe during this era. During the Dark Ages, books were highly illustrated, since this facilitated communication. Many illustrations were featured in religious books as well as on playing cards. These illustrations were engraved in wood or metal, inked, and impressed on the sheet, a process that required great skill. There is proof 4 Presswork and Bindery Processes hat blocks were exchanged between printers. Several illustrations appeared in different publications. The same images were often used to illustrate different subjects. Type and illustrations at first were printed in two separate impressions because they were produced at different heights. Over time, type and illustrations were produced at the same height. The Renaissance era, a period that was marked by an intellectual awakening, began around the thirteenth century. People began to study the sciences and the arts and to explore their environment. Many discoveries were being made, and people wanted to have kn owledge of new ideas.Fig. 1:7. Statue of Gutenberg. Fig. 1:8. Gutenberg style screw press. Fig. 1:9. The Gutenberg Bible. The Gutenberg Era (1397-1468) During the Renaissance, people experimented with methods for the faster reproduction of books. One result of these experiments was the successful use of movable cast type and a press in printing by Johannes Gutenberg (Fig. 1:7). The invention was revolutionary for several reasons. European languages, in contrast to those of Asia, were alphabetic. They consisted of relatively few characters, such as the twenty-six letters of English.This small number of different characters made the use of individualcharacter types (movable type) practical. Casting each character in quantity from a mold and using a press for printing permitted very fast reproduction of written materials. Through experiments and innovations, Gutenberg perfected the printing process before the famous printing of the bible. Each page printed had thirtysix lines per page. Later the lines per page increased to forty-two. Because of this invention, printing soon spread rapidly throughout Europe. Books became plentiful because they could be printed more quickly.Many persons could now afford books, and printing fulfilled the demand. Intellectual activity and learning began anew. Because of the impact of books on the culture of Europe at this time, printing became recognized as the art that preserves all the arts. The following reasons help to further explain the importance of the invention of movable type: 1. With movable type, a greater degree of accuracy was possible. 2. The supply of books increased greatly. Over twenty thousand volumes for one book could be produced in one year. Presswork and Bindery Processes 5 3. Because books were plentiful, they were affordable.They became readily accessible among all classes of people. 4. The invention of printing stimulated the desire for learning. The invention of printing, more than any other invention, was credited with bringing Europe out of the Dark Ages. 5. A standard alphabet was in place. Despite many languages on the European continent, thousands could share from the same invention. Presses were set up in Holland, France, England, and other European nations. 6. Gutenberg invented a press (Fig. 1:8) fashioned from a wine press. Ink pads, which were made of leather stuffed with wool or horsehair, were used to apply ink to the form. . The ink that Gutenberg used was have been made from linseed oils and lampblack. Later it was discovered that traces of lead, titanium, and copper were also used. Gutenberg could not use the India ink produced in China, because it did not print well from metal types. 8. Gutenberg’s own contribution was a punch and mold system for producing metal types. This method created the mass distribution of movable types for printing. Despite the accomplishments of Gutenberg and other European printers, we cannot forget the Chinese influences on their inve ntions.These inventions eventually made their way to Europe via explorers, who came back with startling discoveries, including paper, playing cards, movable type, block printing, image prints, and paper money. The printing trade was not profitable. Gutenberg himself did not become rich from his innovations and contribution to the world. The problem lay in the marketing of books in Europe during that time. Although the demand for books and other printed matter was great, methods to market and transport books needed to be developed. Early European Printers (Graphic Arts Procedures) 460 Strasburg, Germany †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Johann Mentelin 1464 Strasburg, Germany †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Heinrich Eggestein 1465 Subiaco, Italy †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Conrad Sweynhem 1467 Rome, Italy. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. Ulrich Han 1468 Basel, Switzerland †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Berthold Rappel 1469 Venice, Italy †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Johann of Speyer 1470 Venice, Italy . †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Nicholas Jenson 1470 Paris, France. †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Michael Fibiger 1473 Nuremberg, Germany †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Anthony Koberger 1473 Utrecht, Netherlands †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢ € ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Gerardus Leempt 1473 Lyons, France †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ .Guillaume Leroy 1494 Venice, Italy †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. Aldus Manutius 1497 Paris, France †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Henri Estienne 6 Presswork and Bindery Processes Fifteenth Century PrintingPrinting was a very important invention during the Renaissance era. The key to the invention of printing lies in the manufacturing of movable type. This technology had to be perfected in order for the printing process to be developed. A few inventors worked on the development of movable type. A punch of a particular type style and size had to be produced. This punch was used i n making an impression of the typeface in a mold. The mold was made from copper, which is soft enough to receive the impression from a steel punch, but durable enough to withstand the heat from the molten metal that was poured into it to produce the type.The punch itself had a reversed character, which was reversed into the matrix as a positive recessed character. A wrong reading character was produced from the casting of molten metal in the mold. The person that produced the punch was often the designer of the typeface. Fig. 1:10. Fifteenth century typesetting and type casting (Cary Collection). The term unjustified matrix or strike was referred to as matrix that was produced by depressing the punch within the copper. The term matrix is used after the copper with its impression is fitted within the mold for casting (Fig. 1:10).The goal in the casting of type was to produce type of equal height. This was necessary in order for printers to obtain an even impression with few difficult ies. The matrix and its fitting within the mold were the key factor in the controlling of the type height. This was accomplished by using the same mold throughout the manufacturing of a font. In addition to the type height, the paralleling or the side-by-side placement of the type was also important. If type were not produced on a square body, then it would not stand straight and would slant when locked together with other characters. Presswork and Bindery Processes 7Molds were made up of two parts and screwed together in a parallel adjustment. In this way the mold could accommodate matrix of varying size. During the hand casting process, a worker could face shrinking of type, uneven filling of the molten metal in the mold, and injury from the heat of the molten metal. The process was slow, but the type could be used for thousands of jobs. By the mid-nineteenth century, automatic methods replaced the manual methods of typecasting. Workflow in the Fifteenth Century The workflow in th e fifteenth century included composition, imposition, printing, and binding.In the composition stage, once the text was decided on to print, then the volume of copy was determined. Lines per page as well as the total number of pages for the job were determined. The printer would then know how much paper was needed for the job. The compositor set the type for the job using a composing stick. Every time the stick was filled, the lines were transferred to a metal tray called a galley. Pages were formed in the galley. Pages in the fifteenth century were arranged on large stones in printer spreads. Pages were enclosed by wooden pieces, which are called furniture.A metal frame called a chase surrounds all pages and furniture. To secure the form, locks or quoins were used. One page with no printing on the other side was called a broadside. Two pages were called a folio; four pages, a quarto; and eight pages, an octavo. A pressman pulled a proof sheet from the imposed form (Fig. 1:11). The proof was given over to a corrector and a reader. The reader read the original copy as the corrector trailed along on the proof sheet to ensure that the text was the same. This process continued until all corrections were found and changed.Because of these continuous changes, no single copy of an early printed book is identical to any other. Fig. 1:11. Fifteenth century printing (Cary Collection). Paper was prepared the day before the actual press run. Piles of sheets each were set out, wetted, and allowed to stand overnight. This was necessary because the common screw presses of the time did not have enough power in them to force dry paper to evenly take the ink. 8 Presswork and Bindery Processes Two pressmen were involved in the printing process. One applied ink to the type, and the other pulled the bar and worked the paper.Pulling the bar required a lot of energy and printers would take turns in this process. Ink balls were used to applied ink to the form. These ink balls were ma de of leather pads, mounted in wooden cups and handles, and stuffed with wool or horsehair; they were then covered with a sheepskin pelt. Ink balls were inked, and ink was placed over the form in a rocking motion. A sheet of paper was then laid on the tympan. The tympan, paper, and frisket were folded together onto the form. The pressman then pulled the bar toward himself. This caused the turning of the screw, drawing the platen down and forcing the paper against the inked form.It sometimes took two pulls to print one form. The carriage was cranked out from under the platen. The tympan and frisket were raised, and the paper was removed. Sheets of paper were printed on the reverse side immediately while the sheet was still damp. Printing on both sides of the sheet is called perfecting. After the job was printed, the compositor cleaned the ink off the forms, unlocked the type, and distributed the type into the cases. Printed sheets were sent to a drying room and hung up in sets to dry . They were then piled into heaps on a long table and collated by signatures.Next they were folded once, pressed, and baled for delivery or storage. Fig. 1:12. Adams power platen press. Fig. 1:12a Early inking apparatus. Evolution of inking rollers. Fig. 1:13. Ink balls. Fig. 1:14. Ink brayer. Fig. 1:15. Inking rollers. Presswork and Bindery Processes 9 The Power Platen Press In 1830, Isaac Adams of Boston invented a press, which combined the advantages of the hand press and a press that could print larger forms. The platen on this press was stationary with the bed of the press rising to make contact with the platen to print.The form would be inked when the bed of the press returned to its lowest position. At this point the inking rollers would transfer ink over the printing form. A frisket was used to carry the sheet to the printing position (Fig. 1:12). The average speed of these presses was around 800 sheets per hour. Inking rollers evolved from a hand frame with two handles auto matically inking rollers, to the use of vibrating rollers to drive the rollers in the unit. An earlier method of inking employed a â€Å"roller boy† or an â€Å"assistant pressman†. Soon the inking apparatus (See Fig. :12a) was run by power, which was signaled by the action of the bed moving up and down. The Job Presses Job work consist of smaller work such as tickets, circulars, business cards and bills. This type of work became problematic for hand-press printing where the demand was in place for smaller, faster and more accessible presses. One of the first job presses was called the Adams press. This press did not meet the qualifications that were needed to run smaller job work. S. P. Ruggles of Boston introduced a series of presses in 1830. They were known as â€Å"card presses†.The card press was manufactured with a flat side on the side of a cylinder supported between side frames. A second flat surface known as the â€Å"platen† was directly across from the bed of the press. Rollers on the press, which traveled around the cylinder, did the inking. The largest press sheet on the press could accommodate a press sheet of 6† X 9†. Other notable presses include: The Albion Press of 1835 (Fig. 1:19), The Paragon Press of 1829 (Fig. 1:17), the Stanhope Press of 1816 (Fig. 1:20) and the Chandler and Price Platen Press of the early 1900s (Fig. 1:18). Harrison T. Chandler and William H.Price founded Chandler and Price Company in 1881 in Cleveland, Ohio. Chandler and Price manufactured machinery for printers including hand-fed platen jobbing presses, paper cutters, book presses, and assorted equipment. Fig. 1:16. Clymer-Columbian Press. Fig. 1:17. Paragon Press. 10 Presswork and Bindery Processes Fig. 1:18. Chandeler & Price Press. Fig. 1:19. Albion Press. Fig. 1:20. Stanhope Press. Many job presses came out with several improvements over the years. These improvements included: †¢ Larger press sheet sizes. †¢ Faster press speeds. †¢ Better synchronization of the bed and the platen. Improvement in the inking roller application. †¢ Better impression devices. †¢ Automatic feeding and delivery. The newspapers were printed on wooden hand presses operated by levers and screws. It was not until around 1816 that the new iron Columbian press came into general use. The Columbian press (Fig. 1:16), invented by George Clymer of Philadelphia, had, instead of a screw, a series of compound levers that multiplied the pull of the operator. All hand presses were slow. The forms had to be laid by hand and the inking of the form was notably poor and of uneven quality. Web Offset DevelopmentWith the nineteenth century came the addition of the steam-powered press, the cylinder press and the web press. An American inventor by the name of William A. Bullock (Fig. 1:32), patented the web press. The web press printed from rolls of paper rather than from individual sheets. This was followed by another Ame rican invention, the continuous roll press, devised by Richard M. Hoe. This device sped up the production of newspapers to around 18,000 newspapers an hour. In 1871 Hoe (Fig. 1:30) and company turned their attention to constructing a press that would feed a continuous roll of paper and print on both sides of the fed paper.They petitioned ink manufacturers for the development of fast drying inks. Paper manufacturers were asked to produce rolls of paper with Presswork and Bindery Processes 11 Fig. 1:21. William Bullock Web Press. Fig. 1:22. Web Perfecting Newspaper Press. Fig. 1:23. Turn bars Assembly on a Web Press. 12 Presswork and Bindery Processes Fig. 1:24. Web Press Infeed Section. uniform strength. But there were other problems that needed to be solved including the severing of sheets after printing and an accurate delivery of papers. Stephen D. Tucker, who was an employee of Hoe and Company, patented the gathering and delivery mechanism.This mechanism produced flat rapid deliv ery of printed sections. The web presses operated at speeds as fast as 18,000 impressions per hour. This finishing device was necessary for the production of â€Å"fold ready† products for immediate delivery by carrier or mail. The finishing steps were done â€Å"inline† or on the same piece of equipment. Initially equipment similar to the traditional folding machine was used. Conveyor belts would carry the sheet to right angle folding units, which were made up of folding rollers until the desired folded format was completed. Then in 1875 Stephen D.Tucker patented a rotating folding cylinder. This device folded the papers as fast as they were printed approaching speeds of 15,000 per hour. Paper enters from two rolls into two portions of the press. The web is printed (perfected) on both sides of the sheet and traveled towards the rotating folded cylinder. The sheets entered a triangular former, which folds the sheets at a predetermined place on center of the sheets. The sheets were then taken over a second cylinder, which gave it another fold. A knife then severed the sheet separating it from the web.The folded section traveled down a conveyor belt to be manually removed, wrapped and shipped Cylinder Press Invention William Nicholson received a patent for an idea for press in 1790 in which a form is to be placed on a cylinder over a flat bed. The substrate is fed between the bed and the impression cylinder to receive an image. The application of ink was done with rollers on this press. The rollers was composed of cloth covered with leather. Nicholson's envision for this press was far ahead of his time. Nicholson did not have a method for producing curved letterpress plates to fit around a cylinder.The securing of the plate for printing was another mystery at that time that would have to be figured out. In 1814, Frederick Koenig invented the first automatic press (Fig. 1:25). Frederick Koenig was a clock maker by trade. Koenig’s first press was actually patented in 1810. The entire bed moved laterally, and the form received ink from a set of inking rollers placed at one end of the press. The key to the automation of this press was the metal gripper finger, which in essence replaced human fingers for providing sheets to the press. Before this time, presses had been fed by hand.The automatic press was powered by steam and was used in printing the Times of London. It printed approximately 800 sheets per hour, an amazing feat in the 19th century and adequate for the population of that time. Thomas Bensley, a printer and Andrew Bauer a mechanic, assisted Koenig. They invented a press with a bed that moved laterally with the form and an impression cylinder that pressed the wet inked image on the substrate. The impression nip, or the area that prints at any given time, is very small on a cylinder press, resulting in a much better image transferred to the substrate.More importantly, this invention prevented many injuries and d amage to the press because operators were not in close contact with the moving parts on the press. Presswork and Bindery Processes 13 Fig. 1:25. Koenig’s cylinder press. Fig. 1:26 Hoe’s cylinder press. Fig. 1:27. Battery of cylinder presses. 14 Presswork and Bindery Processes Fig. 1:28 Advertisement of a cylinder press. Richard Hoe and the Rotary Press Richard Hoe (Fig. 1-30) was born in New York City. He went to work for his father, who manufactured printing presses. His father experimented with cylinder presses until his retirement in 1830.Richard carried on this work after his father retired in 1830. He invented the single cylinder press, which was capable of printing 200 copies per hour. Hoe also introduced the double cylinder press in 1844, known today as the rotary press. One cylinder carried the type to be printed while the other cylinder carried the paper and provided printing pressure so that the image could be transferred to the substrate. Rotary presses requ ires curve metal letterpress plates. The difficulty of making these curved plates slowed the acceptance and growth of rotary presses.Curved stereotype plates were accepted and used by 1870. The rotary press became the press of choice for newspaper reproduction, business forms, catalogues and magazines. A flying splicer was introduced for the continuous printing of publications without the need of stopping the press. This device changed the rolls by attaching a new roll to and expired roll. Hoe also invented an additional press in 1847 (Fig. 1-30), which featured a type form and four cylinders for carrying the sheets through the press. It is interesting to note that a boy, who fed sheets to the cylinder, also attended each cylinder.This press produces prints at the rate of 8,000 sheets per hour. Hoe is also credited with the invention of a web perfecting press. This press feeds from rolls of paper and is printed on both sides of the sheet. The presses were powered for the most part b y steam. Electric power took over in the nineteenth century as the main power source for presses. Presswork and Bindery Processes 15 Fig. 1:30 Richard Hoe (left) and his six rotary press (above). Fig. 1:31. Richard Hoe web press. Fig. 1:32. William Bullock. 16 Presswork and Bindery Processes Fig. 1:33. William Bullock’s rotary press.