The process of micro-encapsulation by emulsifying a solution in a stirred tank has been accepted as the most suitable method for the production of microcapsules for carbonless copy paper and is currently used by Mondi Paper in Merebank. The focus of this project was to obtain a more uniform size distribution of the microcapsules so that oversize capsules would not smudge when they are coated on paper. There was also concern that the formation of very small ink/oil droplets was consuming wall material unnecessarily and was not contributing to the formation of an image on paper. The reduction of these tiny droplets would result in a saving of the cost of the wall material. Mondi currently produces microcapsules with an average diameter between 4 and 5 microns. The amount of capsules produced above 10 microns, the oversize, is less than 1 per cent (v/v) and the amount of capsules produced below 2 microns, the undersize, is between 25 and 30 per cent. Mondi wishes to reduce the amount of undersize capsules, thereby producing a narrower size distribution. This could result in large savings, as discussed above. It could also lead to the production of a six-sheet set of carbonless papers instead of the four-sheet set, which is currently produced. The production of microcapsules by emulsification was investigated in a 2.5-1iter laboratory tank, using an impeller measuring 45 mm in diameter. A range of agitation speeds was investigated and it was seen that at the lowest speed that formed emulsions, 6600 rpm, 15.03 per cent of undersize capsules was produced and an average capsule diameter of 7.57 microns, after 40 minutes of agitation. At the highest impeller speed, 8000 rpm, the average capsule diameter was reduced to 1.93 microns and 67.02 per cent of undersize capsules were classified as "undersize". No oversize capsules were observed. These capsule specifications were not favourable. Further experimentation showed that at 7500 rpm, an average capsule diameter of 5.12 microns and an undersize of 24.20 per cent were observed. The proportion of oversize capsules was 1.63 per cent. Since these results were similar to the results obtained from the plant, 7500 rpm was used accepted as the "standard" speed for the experiments. A reduction in the impeIler speed from 7500 rpm to 7200 rpm after the first 20 minutes of emulsification was one· way on reducing the proportion of undersize particles further. The proportion of undersize particles was reduced from 20.20 per cent to 19.71 per cent at standard conditions. The average capsule diameter and the oversize were not affected significantly. The effect of the emulsification temperature on the particle size distribution was investigated with temperatures ranging from 22 to 40°C, in increments of 2 QC. A temperature of 30 °c was used as a standard temperature as this temperature was being used at the plant. A decrease in the proportion of undersize capsules to 17.12 per cent was seen at temperatures below 30°C and an average of 23.87 per cent was noticed above 30 QC. Although the proportion of undersize capsules decreased, the average capsule diameter increased beyond the specified range to an average of 7.77 microns at temperatures below 30°C. At temperatures above 30 °c the average size was reduced to 5.59 microns. Hence the selection 000 °c as the optimum temperature was confirmed. Experimentation with the emulsification time showed that there were times when a unimodal size distribution was produced. However, these were at times just after the polymerisation had begun, and the reaction was not complete at this stage. A bimodal distribution was always noticed after 40 minutes of emulsification, i.e. after the completion of the reaction. The effects of the baffle widths on the microcapsules were also investigated. Baffle sizes of 5, 10 and 15 mm were used. It was shown that with an increase in baffle width, there was a decrease in the amount of undersize capsules produced. However, the average capsule diameter became too large. A baffle width of 5 mm was shown to produce desirable capsule sizes, although the undersize did not improve, or worsen. Too much of air was trapped in the emulsion when no baffles were used in the tank. Alternatives to the current surfactant, called "Lupasol" were tested so that Mondi could produce the capsules independently instead of relying on the original raw material supplier. This investigation was done based on limited informa.tion on Lupasol. Results from these experiments were inconclusive since more data on Lupasol was required. Samples of the microcapsule emulsion were sent to different companies, in South Africa and abroad, to determine whether the particle size analyser used at Mondi was giving correct results. The results obtained from the companies in South Africa differed by a small amount from that measured at Mondi. However, results obtained from companies abroad varied considerably and it is recommended that Mondi change their particle analyser settings. The power absorbed by the emulsion, in the laboratory-scale equipment was also found. This was determined by monitoring torque. The power was found to be 141.97 Wand the power number was calculated as 0.357. It was noted that the power per unit volume in the laboratory equipment was significantly higher than the plant data (47 kW/m3 vs. 12 kW/m3). The design of the impeller was not changed but the effect of baffle spacing was investigated. / Thesis (M.Sc.Eng.)-University of Natal, Durban, 2002.

This work looks at a range of copying processes used between 1950 and 1970 and which can be gathered under the heading 'Thermography'. Thermography is a broad term covering those processes which utilise heat to produce their image. The main aims of the work were: to examine how and when each process was used; to determine the chemistry of each process; to examine the permanence of existing copies produced using the various processes; and to look at possible ways of improving the preservation prospects of these copies. These aims were addressed through both primary and secondary research mechanisms. Research included examination of documentary source material, seeking out persons with first hand knowledge of the development of the processes, as well as analysis of extant copies from the various processes. Finally a series of preliminary experiments into the aging properties of the papers and the possibilities of preservation through the use of protective materials were carried out.

The purposes of this study were (a) to assess the life stress, coping strategies and mental health of master¡¦s students in Taiwan (b) to compare the three factors for master¡¦s students with different backgrounds (c) to explore the correlation among the three factors (d) to find out how students¡¦ background information, life stress and coping strategies predict their mental health. ¡§Master¡¦s students¡¦ life stress, coping strategies and mental health questionnaire¡¨ was applied in the study. The subjects were 2,515 master¡¦s students in Taiwan. Data were analyzed by descriptive statistics, independent sample t-test, one-way ANOVA, Pearson product-moment correlation, and stepwise regression analysis. Besides, interviews were used to verify results of the quantity analysis. According to the results, conclusions were as follows: 1.The life stress of master¡¦s students was moderate, and ¡§study stress¡¨ was the highest life stress. Besides, the life stress related to various identification, marital status, academy, and age. 2.The frequency of coping strategies of master¡¦s students was between ¡§sometimes¡¨ and ¡§often¡¨, and most students used ¡§solving problems¡¨ strategy to deal with stressful problems and situations. Besides, the coping strategies related to various gender, academy, university type, area. 3.There are forty percent master¡¦s students with bad mental health, and ¡§anxiety and worrying¡¨ was the worst part of students¡¦ mental health. Besides, the mental health related to various gender, marital status, academy, grade, and age. 4.There were significant correlation among master¡¦s students¡¦ life stress, coping strategies, and mental health. 5.The background information, life stress and coping strategies of master¡¦s students could predict their mental health effectively.

"Submitted in partial fulfillment of the requirements for the degree of Master of Business Administration from the Naval Postgraduate School, December 2006." / Advisor(s): Cook, Glenn ; Brinkley, Douglas. "December 2006." "MBA professional report"--Cover. Description based on title screen as viewed on June 18, 2009. DTIC Identifiers: Dpi(Digital Printing And Imagery) Initiative, Consumable Costs, Electronic Documents, Erm(Electronic Records Management), Multi-Function Devices. Author(s) subject terms: Information Technology, Printers, Print Services, Copiers, Electronic Records Management, Paperwork Reduction, Multi-Function Devices, Scanners, Fax Machines. Includes bibliographical references (p. 45).

This thesis focuses on software source code plagiarism. In the theoretical part there is a description of usual plagiarism techniques. The main output in practical part is the program that checks source codes of Java programs, whether these codes are really developed by individual students independently. It detects two or more students with identical source codes by controlling names of methods and variables.

This project tries to understand how we alter existing architecture. The research leads to a proposal that attempts to answer the question: Should a death of a building be a part of its envisaged timeline? It is difficult to preempt a building being dead, but it might be possible to preempt a building being refurbished, renovated and especially replicated. I will try to incorporate the dimension of time in the new buildings and embrace the inevitable change, as well as explore the friction between originality and copying that the process of alteration generates. The site chosen for this architectural experiment is a ski jump erected at Norra Djurgården, and the proposal is its morphed copy hosting a visitors centre and an urban sports centre. The ambition is to establish guidelines or principles of mimicking and copying the elements of an existing edifice in the new one.

Ideas for ways to use textiles and other materials as body coverings, or as a form of apparel decoration, as well as protection, continued to evolve throughout history. More complex ideas and outcomes developed with the advent of weaving, and rectangular shapes were draped in folds, tied, or wrapped around the body. An accepted practice in the apparel industry is seeking inspiration for ideas from a variety of people, places, and things. This practice of seeking inspiration from the environment leads to the question of whether copying is inherent within the apparel industry. History of costume research and study indicate that it is generally accepted that people wear differing apparel for each season of the year, with some repeat, or copying, in the same season in subsequent years. The terms counterfeiting, knocking-off, and copying are often used interchangeably, but further exploration of the terms show they are not the same. Counterfeiting has become, and remains a hot topic in the apparel industry, particularly in product development. Some designers have begun to challenge and demand their work be protected in some manner such as copyrights, trademarks, or patents. Questions and concerns abound among product developers. This study was exploratory in nature, seeking a definition, and identifying a specific point in the product development process, when a certain activity (i.e., copying) is more likely to be performed. Therefore, qualitative methods were used to achieve the objectives of the research. This research took a cross-sectional approach within a qualitative design study when selecting the participants. The cross-sections for the participants of this study were those participants in positions of direct influence on apparel product development. Analyzing the perceptions of the participants from the cross-sections in detail, inferences were made about the industry definition and method of copying, time of occurrence, and those most likely involved in decision making. The instrument for the study was an online survey with open-ended questions and fixed-response questions. Of the 20 participants, 11 accessed the survey with 10 choosing to participate. While some degree of similarity was observed in several of the definitions of copying, such as taking existing products to create new products, there was distinction when participants used phrases such as copying 'without changing anything' to 'copying the idea and concept.' Participants' definition of knocking-off can be summarized as a copy with variation in price point. Participants noted that the process of counterfeiting was an unauthorized or illegal copy of a product and often included copying labels or logos. Key reasons for copying products were reported as following trends and speed to market. / Ph. D.

There is much evidence that mate-choice decisions made by humans are affected by social/contextual information. Women seem to rate men portrayed in a relationship as more desirable than the same men when portrayed as single. Laboratory studies have found evidence suggesting that human mate choice, as in other species, is dependent on the mate choice decisions made by same-sex rivals. Even though non-independent mate choice is an established and well-studied area of mate choice, very few field studies have been performed. This project aims to test whether women’s evaluation of potential mates desirability is dependent/non-independent of same-sex rivals giving the potential mates sexual interest. This is the first field study performed in a modern human’s natural habitat aiming to test for non- independent mate choice in humans. No desirability enhancement effect was found. The possibilities that earlier studies have found an effect that is only present in laboratory environments or have measured effects other than non-independent mate choice are discussed. I find differences in experimental design to be the most likely reason why the present study failed to detect the effect found in previous studies. This field study, the first of its sort, has generated important knowledge for future experimenters, where the most important conclusion is that major limitations in humans ability to register and remember there surrounding should be taken in consideration when designing any field study investigating human mate choice.

The research aims of this thesis are to experimentally investigate how behaviours spread socially, and what factors contribute to the development of group-wide social traditions in capuchins (Cebus apella). Given the apparent convergent evolution between such monkeys and great apes, capuchin traditions are of great interest anthropologically and for a biological and psychological understanding of culture. Several studies have investigated social learning in capuchins, but few have made headway into understanding how it supports the development of traditions either in the wild or in captivity. By experimentally introducing novel foraging behaviours into several captive groups, the studies included in this thesis simulate the development of foraging behaviours so that their spread can be studied from various viewpoints. Five experiments are presented investigating: (1) the chained transmission of foraging behaviours, (2) the role of social facilitation on the rate of individual learning, (3) the fidelity of learning from localised stimulus enhancement & object-movement re-enactment, (4) the quality of individual relationships in the social transmission of novel foraging techniques, and (5) the open diffusion of group-specific foraging behaviours in capuchin monkeys. Together, these experiments explore how traditions may develop, ranging from individual learning to how behaviour patterns may spread socially based on social ties within the group.

We present an in-depth analysis of the music industry and use our findings to judge the practical assumptions and design of an original theoretical model. The model is in three stages, where, in a Hotelling-type framework, the last agents to act are consumers who choose between copying, purchasing, or staying out of the market for music. Prior to the last stage, the record label chooses its profit maximizing price and, in the first stage, we incorporate the artist-label bargaining agreement into a theoretical framework using the Nash cooperative bargaining solution. The current structure of the music industry is a combination of the oligopoly and monopolistic competition models, consisting of five major labels and many independents. Despite major labels' advantage in large-scale distribution, we argue that digital downloading has the potential to radically alter the current industry structure, and that artists would be unable to sell their music in such an environment without enforceable copyrights. Our model assumes that the most important determinants of CD and copy demand are consumers' tastes and transaction costs of copying, CD prices, and the substitutability between CDs and copies. We hypothesize that Internet file-sharing has been undertaken by both consumers who were previously not in the market, and by those who decided to copy rather than buy. In regard to firm strategy, the model suggests that labels could increase the sales of CDs by trying to increase consumers' taste for music, perhaps by reducing the price of CDs. Our model also predicts a positive relationship between artists' optimal share of album sales and their bargaining power, as well as a negative relationship between artists' optimal share and their risk aversion. Since lowering the reliance on labels for distribution would increase artists' bargaining power, our model predicts that artists' share of profits should increase as legitimate digital distribution gains prominence. We also provide empirical testing of our hypothesis that some music file-sharing has been done by consumers frequently not in the market. After examining consumers' expenditures and aggregate industry sales, we are unable to reject our hypothesis