Direct sun drying is one of the oldest methods of food preservation. A drying method that utilizes solar energy while minimizing negative aspects of sun drying is a solar dryer. However, research about the quality characteristics of fruits and vegetables dried using a solar dryer compared to a traditional dryer is lacking. To measure this, apple, tomato and carrot slices, and grape halves and whole peas were prepared and dried using either a solar or FA dehydrator (FA), Consumer liking was measured using two sensory panels that asked panelists 9-point hedonic questions between like products. Quality differences were analyzed using a TA.XT2 texture analyzer. Color was measured using a Hunterlab colorimeter. There were no significant differences in consumer liking (p<0.05) between drying methods for any fruits and vegetables with regards to overall acceptability. Grapes, tomatoes and carrots all had significant differences in consumer liking with regards to appearance, which correlates well with observed differences in a* values. Consumers liked the aroma of solar-dried peas significantly more. The texture of FA grapes was liked significantly more than their solar counterparts, which likely contributed to consumers significantly ranking the FA grapes higher than their solar counterparts when asked to rank which one they prefer.

Thesis (M.Sc. (Pharmacology))--North-West University, Potchefstroom Campus, 2007.

La simulation numérique d'écoulements turbulents dans les systèmes de refroi- dissement de joints de pompes hydrauliques demande à considérer des domaines de calcul très étendus et des temps d'intégration très longs. La modélisation hybride RANS/LES zo- nale pourrait permettre de reproduire, dans un temps de calcul acceptable industriellement, l'ensemble des phénomènes thermiques et dynamiques en présence. L'approche consiste à faire interagir une simulation des grandes échelles (LES), représentant finement les phé- nomènes instationnaires de la turbulence dans certaines régions critiques de l'écoulement, avec l'approche statistique (RANS), moins coûteuse numériquement et dont la mise en oeuvre dans le reste du domaine permet de rendre compte des variations globales imposées à l'écoulement (injection d'eau froide dans de l'eau chaude, rotation de l'arbre et de la roue, etc...). Dans cette optique, une étude détaillée des modélisations adaptées aux écoulements en rotation est réalisée, suivant les deux approches RANS et LES. De nombreux modèles de turbulence sont comparés sur un cas test de canal en rotation. Le couplage zonal aux faces de bord par la méthode des structures turbulentes synthétiques (SEM) est étudié et une méthode innovante de couplage volumique par force de rappel (Forçage Linéaire Ani- sotrope) sur une zone de recouvrement RANS/LES est proposée. Ces deux méthodes sont étendues pour la première fois à la thermique. Les simulations hybrides RANS/LES zonales présentées, sur des cas test de canal fixe, en rotation ou en convection forcée, montrent la faisabilité de telles modélisations pour des applications industrielles.

The extensions of vague predicates like ‘is bald’, ‘is tall’, and ‘is a heap’ apparently lack sharp boundaries, and this makes such predicates susceptible to soritical reasoning, i.e. reasoning that leads to some version of the notorious sorites paradox. This essay is concerned with a certain kind of theory of vagueness, according to which the symptoms and puzzles of vagueness should be accounted for in terms of a particular species of context sensitivity exhibited by vague expressions. The basic idea is that the extensions of vague predicates vary with certain contextual factors, and that this fact can explain why they appear to lack sharp boundaries. This kind of view is referred to as contextualism about vagueness. A detailed characterisation of contextualism about vagueness is given in chapter two and three. In chapter two, a generic version of contextualism about vagueness is developed, and some alternative forms of context sensitivity are introduced. In chapter three, the specific contextual factors appealed to by different contextualists are discussed. In chapter four, different contextualist diagnoses of the sorites paradox are considered, and found to be problematic in various ways. It is argued that contrary to what some of its proponents have claimed, contextualism about vagueness is not superior to other comparable theories of vagueness when it comes to explaining the appeal of soritical reasoning. In chapter five, a certain version of the sorites paradox, known as the forced march sorites, is discussed. It is argued that “data” about how speakers would behave in the forced march cannot lend any firm support to contextualism about vagueness. In chapter six, some problems concerning the instability of the contextual factors are considered. One problem is that contextualist diagnoses of the sorites which locate a fallacy of equivocation in the reasoning seem to render non-soritical reasoning fallacious as well. A model for treating this problem is suggested, but on closer consideration, it turns out to be problematic. Moreover, this model is of no help in solving the more general problem that even if classical logic remains valid for vague language on some contextualist views, the instability of the extensions of vague predicates makes it difficult to know when a certain piece of reasoning instantiates a valid argument form. Other difficulties arise with respect to speech reports and belief contents. Chapter seven concludes with a summary and some methodological remarks.

The main task of the ventilation system in a building is to maintain the air quality and (together with the heating or cooling system) the thermal climate at an acceptable level within the building. This means that a sufficient amount of ventilation air at the appropriate temperature and quality must be supplied to satisfy thermal comfort and air quality demands and that this air is distributed to the parts of the building where people reside. Air movements caused by buoyancy forces can determine the distribution of ventilation air within buildings. The purpose of this thesis is to advance the state of knowledge of buoyancydriven air movements within buildings and to determine their importance both for ventilation air distribution and the maintenance of thermal comfort and air quality in buildings. The work is focused on studying thermally-driven air movements through large openings, both horizontal and vertical (i.e. doorways). The properties of a special type of thermally-driven currents, so called gravity currents, have also been explored. Large vertical openings like doorways are important for air exchange between rooms within a building. Air movements through doorways separating rooms with different air temperatures are often bidirectional and the buoyancy-driven flow rates are often greater than those caused by the mechanical ventilation system alone. Bidirectional flows through doorways can effectively spread contaminants, for example, from a kitchen or a hospital rooms, yet the results of this study indicate that the conversion of a thermally-driven bidirectional flow to a unidirectional flow via an increase of the mechanically forced flow rate requires forced flows that are more than three times greater than the thermally-driven flows. Experiments conducted in this project indicate that the resistance to buoyancy-driven flows in horizontal openings is significantly greater than that in vertical openings. Model tests have shown, however, that this problem may be mitigated if a simple model of a staircase located in the centre of the room (being ventilated) is linked to the horizontal ventilation opening. Gravity currents in rooms occur in connection with so called displacement ventilation as cool gravity currents propagate along the floor that are driven by the density difference of the ventilation air and the ambient, warmer air within the room. As these gravity currents easily pass obstacles and to a certain extent are self-controlling, they can effectively distribute the cool air within rooms in a building. Likewise, warm gravity currents occur when warmer air introduced in a room rises and spreads along the ceiling plane. One application where warm gravity currents may be used to advantage is when converting buildings from electric heating to district hot water heating thus, avoiding the introduction of an expensive hydronic heating system. This report includes a full-scale laboratory study of the basic properties of thermally-driven warm air gravity currents in a residential building and examines the possibilities of using the resulting air movements for the distribution of ventilation air as well as heat. Results from laboratory tests show that this conversion method may prove effective if certain conditions on the layout of the building are fulfilled. / QC 20100705

King Ngungunyana was the lord of the mighty Gaza Empire, covering most of the interior Mozambique south of the Zambezi and parts of present Zimbabwe, when the Portuguese in 1885 were requested by the Berlin Congress to accelerate their colonization. The small enclaves around certain port towns were no longer sufficient, in order to claim the territory as one's colony. "Effective occupation" was the new precept, leading very soon to conflict with King Ngungunyana and, in 1895, the defeat of the Gaza Empire. Thus began Portugal's factual colonization of Mozambique. A few years earlier, Protestant missionaries of the American Board of Commissioners for Foreign Mission bad attempted to begin mission work within the Gaza Empire. Although invited by the King, the effort failed and the missionaries settled near the town of Inhambane, within the Portuguese realm. Catholic Missions, which had been successful during the previous centuries, had ceased to function in all Mozambique, as Religious Orders bad been prohibited since 1834. Seemingly, the arrival of Protestants to Inhambane and also to Lourenço Marques, however, stimulated the Catholic Church into action, and around 1890 new Missions were established "to combat the Protestant propaganda". Meanwhile, the American Board missionaries withdrew, and from 1893 we find American Methodists working in their stead. Part Two of the dissertation deals with the time of the Republic in Portugal, from 1910. Strongly anti-clerical, the Republicans enforced the separation of the Church from the State. This led to difficult times for the Catholic Missions in Mozambique, while it facilitated, somewhat, the task of the Protestants. However, the urge to "civilize the natives" gradually made the Republicans accept the Catholic Missions as "civilizing factors". The spirit of this period allowed for the development of the first Independent African Churches in Mozambique, as well as a first African attempt at political independence. Part Three, 1926-1960, pictures the firmer political grip of "0 Estado Novo", under dictator Antonio Salazar. Forced labour and oppression were the lot of the people, and the Portuguese Catholic Church became the "spiritual arm of the State". "Portugalization" was the new formula. This placed all education of the Africans into the bands of the Catholic Missions, simultaneously closing all Protestant village schools. The period is characterized by a "tug-of-war" between Catholics and the Protestants, who survived by experimentation with new methods and, paradoxically, grew in numbers. The final part of this dissertation, 1961-1974, deals with the Liberation Struggle of FRELIMO, and the Portuguese response. The Portuguese Catholic Church was still, unfailingly, supporting the political regime and its war efforts. Gradually, a growing force of opposition within the Church became courageously active. Meanwhile, Protestant Missions prepared for the future by "africanizing" their structures, and some were made to suffer for alleged subversion, before the "Carnation Revolution" in 1974 put a sudden end to war activities. I suggest that several elements within the Church history of Mozambique contributed to the negative attitude towards religion, which was displayed by FRELIMO during the first years of independence.

ABSTRACT WOMEN TRAFFICKING IN TURKEY: INTERNATIONAL COOPERATION AND INTERVENTION Arslan, Selin MS., Department of Gender and Women&rsquo / s Studies Supervisor: Prof. Dr. Yusuf Ziya &Ouml / zcan December, 2006, 217 pages. This study has focused on analyzing the women trafficking in Turkey and the international cooperation and interventions which Turkey has done in years between 2004 and 2006. While mentioning efforts on combating human trafficking and international cooperation and interventions, the support of International Organization for Migration (IOM), the leading intergovernmental organization working against trafficking, which Turkey became member in 2004, should be mentioned as well. This study is trying to show the efforts of Turkey in the situation of combating with an organized crime, a gross human rights violation-especially after becoming member of the International Organization for Migration. Before discussing the situation and efforts in Turkey on counter trafficking the realization of women&rsquo / s rights the emergence of the women&rsquo / s discourse within the international arena and the international debate on trafficking especially after the Trafficking in Persons Report (TIP) have been introduced and discussed in detail. Such a beginning facilitated conceptualization of (1) the evolution of the emergence of conscious on trafficking crime in the international arena (2) the sprout of the idea and perception of &ldquo / combating trafficking crime&rdquo / in Turkish society and (3) the transformation of the Turkish context related to trafficking issues in the light of discussions emerged by the support of IOM Turkey.

This study aims to analyze the socio-economic characteristics, living and working conditions, educational profiles and the future expectations of the child workers, who have been living in tents for many years and working as agricultural workers at Karag&ouml / &ccedil / er and Kapik&ouml / y areas of Tuzla Municipality (KarataS District) of Adana Province since the early 90s after having been forced to vacate their villages in Sirnak. Thesis tries to expose the poverty, deprivation and social exclusion experienced by families and children presently living in tents in Karag&ouml / &ccedil / er and Kapik&ouml / y. It is also aimed at exposing the ways in which these people are deprived of their social and political rights as citizens. The main research question of the study is the motives behind the child labour observed in Karag&ouml / &ccedil / er and Kapik&ouml / y. The study has found that the phenomenon of child labour in this area is the direct consequence of poverty, deprivation, social exclusion and denial of citizenship rights that these families had to face as a result of forced migration early in the 90s. Therefore, the study underlines, in conceptual terms, how their unfavourable circumstances lead to deep child poverty and consequently child labour and thesis also tries to bring attention to the children&amp / #8217 / s situation by referring to their families&amp / #8217 / poverty, deprivation, social exclusion and lack of citizenship rights. In this respect, the theory section of the thesis focuses on the relation of child labour and child poverty within the conceptualization of new poverty, internal displacement (forced migration), social exclusion and citizenship rights. One of the main argument of this thesis is that children from Sirnak who work in fields in Tuzla constitutes a different category of child labour. Even though they are paid child workers working in the agricultural sector and they live like migrant seasonal agricultural workers, they are not, since they are settled in the region for a long time. Another important argument of the study is that families of these children after the evacuation of their village did not migrate to urban areas like most of the internally displaced people did but moved to rural areas. In this sense, they are also in disadvantaged condition compared to other internally displaced people since they can not benefit from many social services, which is easy to reach in urban settings. Therefore, this study makes clear that the children and their families examined in this study are the part of the worst form of poverty in Turkey.

This thesis investigates the refrigerant (R-134a) flow in three minichannels having different geometries experimentally. During the last 40 years heat transfer in small scales has been a very attractive research area. Improvements in heat transfer in the refrigeration applications by means of usage of micro/minichannels provide significant developments in this area. Also it is known that experimental studies are very important to constitute a database which is beneficial for new developments and research. During the two-phase flow experiments conducted in the minichannels, low mass flow rates and constant wall temperature approach, which are the conditions in the evaporators of the refrigerator applications were applied because one of the purposes of this study is to determine the most ideal minichannel among the tested minichannels for usage in the evaporator section of the refrigerators. Two-phase flow experiments were made with refrigerant R134a in the three minichannels having hydraulic diameters of 1.69, 3.85 and 1.69 mm respectively. As distinct from the others, the third minichannel has a rough inner surface. Comparison of the experimental results of the three minichannels was made in terms of forced convection heat transfer coefficients and pressure drop at constant quality and mass flux values. As a result of the experiments, the most ideal minichannel among the tested minichannels was determined for the evaporator applications in the refrigerators.

Thesis (M.F.A.)--University of North Texas, Aug., 2009. / Title from title page display. Includes bibliographical references.