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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

ANALÝZA VLIVU DOTACÍ OBNOVITELNÝCH ZDROJŮ ENERGIE NA EFEKTIVNOST KONKRÉTNÍCH VYBRANÝCH PROJEKTŮ / ANALYSIS OF SUBSIDIES FOR RENEWABLE ENERGY ON EFFECTIVENESS OF SPECIFIC PROJECTS

Šouláková, Marie January 2009 (has links)
Graduation theses deal with grants on renewable energy sources. Equate to possibilities supports renewable energy sources and smoothing - out whether be necessary further promotion above law 180/2005 Sb. Lockwork work smoothing - out this question for instance 3 kinds renewable energy sources, behind using two economic criteria namely net present value and internal rate of return.
42

Machiavel, une biographie : l'apport intellectuel de sa correspondance avant septembre 1512 / Machiavelli, a biography : the intellectual contribution of his correspondence before september 1512

Roudier, Jérôme 10 June 2014 (has links)
Le corpus des écrits de Machiavel et de ses correspondants depuis son entrée dans la Chancellerie florentine en 1498 jusqu’à septembre 1512 jette une lumière inédite sur la vie et le travail du Secrétaire et permet de comprendre l’ensemble de son œuvre de manière nouvelle. En « homme nouveau » de son époque, Machiavel tente de promouvoir et de mettre en œuvre un programme. Par ses lettres comme ses rapports, il tente de convaincre ses contemporains. Il forme ainsi un art de la communication novateur, que permet l’espace politique de la République florentine. La thèse dégage les caractéristiques de cet art, avant d’en analyser la pertinence philosophique. Machiavel refuse la philosophie théorique de son époque pour mieux s’engager dans l’action et par là devenir le fondateur de la philosophie politique moderne. Il est un homme de parole, d’écriture et d’action pour qui l’action passe par l’écriture et la parole. La capacité de la raison à appréhender le réel politique à travers des concepts figés est remise en cause. Pour Machiavel, la réalité féconde de la politique se manifeste à travers des tensions qu’il convient de décrire sans les figer par le langage. Il invente ainsi une méthode d’écriture et de pensée qui vise le salut de sa patrie communale via l’unité italienne. La thèse, fondée sur un corpus d’avant 1512, permet l’interprétation des textes ultérieurs en faisant du Prince et des Discours, par exemple, des déclinaisons de ce programme en fonction de leurs interlocuteurs. Machiavel n’est pas alors un philosophe, mais un acteur politique qui tente, par le truchement de l’écrit, malgré l’exil et la disgrâce, de sauver sa patrie du désastre imminent qu’il pressent. / From the moment he joined the Florentine Chancellery in 1498 to September 1512, Machiavelli’s corpus of writings and letters shed a new light on the life and work of the Secretary. There is no doubt that Machiavelli was a true Patriot, extremely concerned about the role of foreign armies in Italy. Machiavelli represents also a "New Man" in his century and seeks to promote a program. Through his letters and his reports he advocates about the necessity of that program. In doing so he invents a new form of communication allowed by the political specificities of the Florentine Republic. This dissertation aims at identifying the characteristics of this art. Then it questions its philosophical relevance. Machiavelli rejects the theoretical philosophy of his time and would rather get engaged in action. Thus he becomes the founder of modern Political Philosophy. He is a man of speech, of writing and of action: he acts through writing and speaking. Reason’s ability to ‘consider what happens in fact’ through pre-existing concepts is challenged. Machiavelli describes politics as a realm of tensions that should be understood without being frozen by concepts. Therefore he invents a method of writing and thinking that could lead to the salvation of his homeland through Italy’s ‘communal’ unity. The dissertation is based on the pre-1512 corpus. In this light following and better-known texts appear as different versions of a unique program adapted to different interlocutors. Machiavelli cannot be seen as a Philosopher then, but rather as a political Actor who desperately attempts through writing, and despite exile and disgrace, to save his City from the imminent disaster.
43

L'"autarkeia" chez Platon / Autarkeia in Plato

Jardry, Jérôme 03 July 2013 (has links)
Pour Platon, le monde et l'homme bon sont tous deux dans cette situation de n'avoir d'autre ami que soi-même. L'"autarkeia", définie comme auto-suffisance est un idéal dans la philosophie grecque, chez Socrate par exemple, et pour Xénophon et Aristote. Platon en propose toutefois un traitement original : quasiment absent des textes, le concept d'"autarkeia" structure l'ensemble de la philosophie de Platon. L'enjeu principal est de déterminer si l'autarcie peut être définie comme relative, ou si elle ne peut conserver un sens qu'en étant absolue. Le sens de l'autarcie pose problème pour l'homme bon -le philosophe, pour l'homme dans la cité, pour le monde et pour les Formes. L'"autarkeia" met en évidence la tension entre le rapport au désir (qui présuppose le manque), et l'exigence de fonder la philosophie et la dialectique, sur un principe (anhypothétique, c'est-à-dire auto-suffisant). C'est toutefois le sens absolu de l'autarcie qui rend possible une métaphysique : l’autarcie apparaît donc comme une condition du discours philosophique. / According to Plato, the world and the good man share this way of being : having no friend but themselves. Autàrkeia, or self-sufficiency, is an ideal for Greek philosophers, for Socrates for example, and according to Xenophon or Aristotle. However, Plato deals with autârkeia in an original way : autârkeia can be considered as a guideline for Plato 's philosophy, while the concept is almost missing in the texts. Can self-sufficiency be defined as relative? Or would il be merely be absolute, as the only possible meaning. The problem needs to be examined for the good man -the philosopher-, for citizens, the world and Forms. Autârkeia highlights the contradiction between desire (which presupposes lack), and the necessity to ground philosophy (and dialectic) on a principle (an "anhypothetic" one, which means: self-sufficient). Yet, metaphysics is grounded on the absolute meaning of autàrkeia: self-sufficiency is therefore a main condition of philosophical logos.
44

READ 180 Evaluation: Balanced Literacy in a Low-Income, Underperforming Urban High School

Lombardi, Daniel 01 January 2015 (has links)
This study investigated the effectiveness of the READ 180 balanced literacy program in addressing the problem of low reading achievement among urban minority high school students. Research has shown low reading achievement to negatively impact academic and economic success. Holdaway's theory of natural literacy, which suggests reading instruction should be purposeful and realistic, supports READ 180 as a remedial intervention. The specific purpose of the study was to evaluate READ 180 in relation to improving classroom reading achievement, standardized language arts test scores, and graduation rates among students in a low-income, high-minority urban high school. Subjects were 2 cohorts of students consisting of 619 enrolled in READ 180 during the school year of 2007-2008 and 358 students enrolled in READ 180 during the school year of 2010-2011 at an urban high school in New Jersey. Following a goals-based program evaluation design, a paired difference t test was used to evaluate classroom reading achievement; a chi-square test was used to evaluate graduation rates; and a multiple regression analysis controlling for initial status was used to evaluate performance on the standardized language arts test. Findings indicated moderate improvement in classroom reading achievement, no improvement in graduation rates, and strong improvement in standardized test scores only for English learners. Results suggested that a balanced literacy program such as READ 180 may provide effective reading remediation for English learners in low-income urban areas, thereby promoting social change through increased academic success and upward economic mobility.
45

Re-examining the Traditional Principles of Cinematography of Modern Movies : a Case Study of Children of Men and Clerks II

Håkansson, Cornelia January 2013 (has links)
This thesis addresses the principles of cinematography and their significance for the visual outcome of a film. The purpose is to examine the importance of the principles for modern film and this is done through a study on how the principles are used and not used in the films Children of Men and Clerks II. The two films investigated are both known for being experimental and modern in their use of cinematography, and was therefore found suitable for this thesis. The limitation with this study is that only the four main principles of cinematography are analysed: camera angles, framings, points of view and camera movement, and they are only analysed in one shot from each film examined. In the results, the four main principles were investigated when and when not applied in the specific shot from each film. In the film Children of Men the breaking of the principle of point of view was most central, but the principle of framings and camera movement were in some cases also not applied. The only principle actually followed in this shot was the principle of camera angles. In the other film examined, Clerks II, the breaking of the principle of camera movement and camera angles was most central together with the breaking of the 180 degree rule. The principles that were followed in this clip were framings and points of view. In the conclusion the results were discussed and also the possibility of effects on the viewer, when breaking the principles. Different ideas of possible effects on the viewer were presented, but they all had disorientation in common. The possible outcome of disregarding the principles of cinematography ended up being misleading the viewer away from the narrative.
46

Preparation Of Cross-linked Tyrosinase Aggregates

Aytar, Burcu Selin 01 June 2006 (has links) (PDF)
ABSTRACT PREPARATION OF CROSS-LINKED TYROSINASE AGGREGATES Aytar, Burcu Selin M.S., Department of Chemical Engineering Supervisor: Prof. Dr. Ufuk Bakir June 2006, 82 pages The aim of this study was to prepare cross-linked enzyme aggregate (CLEA) from crude mushroom (Agaricus bisporus) extract. However, the optimization of CLEA production was performed by using pure tyrosinase. Important parameters were determined as protein, ammonium sulfate and glutaraldehyde concentrations, CLEA particle size, and cross-linking temperature and period. On the other hand, the order of ammonium sulfate and glutaraldehyde addition did not affect the yield of CLEA. Optimum CLEA preparation conditions were 60 % ammonium sulfate saturation, 2 % (v/v) glutaraldehyde, and 3 hour cross-linking reaction at room temperature. Particle size of the CLEAs should be reduced by mechanical stirring to eliminate mass transfer limitations. Under these circumstances, 100 % recovery was obtained from both pure and crude tyrosinases. Optimum temperature and the activation energy for catechol oxidation were determined as 34 oC and 16.9 kcal/mol for CLEAs, whereas, 32 oC and 12.5 kcal/mol for the free enzyme. Furthermore, the thermostability of CLEAs was significantly higher than the free enzyme. CLEAs, prepared from crude mushroom extract, retained 72 % of its maximum activity in eight months storage at 4 oC. Moreover, changing the storage temperature from 4 oC to room temperature did not decrease CLEAs stabilities.
47

Numerical And Experimental Investigation Of Flow Through A Cavitating Venturi

Yazici, Bora 01 December 2006 (has links) (PDF)
Cavitating venturies are one of the simplest devices to use on a flow line to control the flow rate without using complex valve and measuring systems. It has no moving parts and complex electronic systems. This simplicity increases the reliability of the venturi and makes it a superior element for the military and critical industrial applications. Although cavitating venturis have many advantages and many areas of use, due to the complexity of the physics behind venturi flows, the characteristics of the venturies are mostly investigated experimentally. In addition, due to their military applications, resources on venturi flows are quite limited in the literature. In this thesis, venturi flows are investigated numerically and experimentally. Two dimensional, two-dimensional axisymmetric and three dimensional cavitating venturi flows are computed using a commercial flow solver FLUENT. An experimental study is then performed to assess the numerical solutions. The effect of the inlet angle, outlet angle, ratio of throat length to inlet diameter and ratio of throat diameter to inlet diameter on the discharge coefficient, and the oscillation behavior of the cavitating bubble are investigated in details.
48

Enhancing Petroleum Recovery From Heavy Oil Fields By Microwave Heating

Acar, Cagdas 01 June 2007 (has links) (PDF)
There are many heavy oil reservoirs with thin pay zones (less than 10 m) in the world and in Turkey. Conventional steam injection techniques are not costeffective for such reservoirs, due to excessive heat loss through the overburden. Heat losses can be minimized through controlled heating of the pay zone. One such way is to introduce heat to the reservoir in a controlled manner is microwave heating. Laboratory studies on microwave heating of a scaled model of a heavy oil reservoir with a thin pay zone are presented with an economical feasibility of the method. In this thesis, three different conceptual oil reservoirs from south east Turkey are evaluated: Bati Raman (9.5 API) and &Ccedil / amurlu (12 API) heavy crude oils and paraffinic Garzan (26 API)crude oil. Using a graphite core holder packed with crushed limestone with crude oil and water microwave effects of operational parameters like heating time and waiting period as well as rock and fluid properties like permeability, porosity, wettability, salinity, and initial water saturation are studied. The main recovery mechanisms for the experiments are viscosity reduction and gravity drainage. An analytical model is developed by coupling heat equation with the electromagnetic dissipated power per unit of volume based in Maxwell&#039 / s equation successfully models the experiments for temperatures less than the pyrolysis temperature is presented. Also the experiments are scaled to the model by geometric similarity concept. In economic evaluation, the cost of oil is calculated based on domestic electricity prices.
49

Screening Of Tomato Seeds For Genetic Modification And Identification Of Genetically Modified Ripening Delayed Tomato Seeds

Turkoglu, Selda St 01 May 2007 (has links) (PDF)
Tomato has been genetically modified for providing properties such as insect-resistance or delayed-ripening. Tomato seeds purchased from several bazaars and markets were screened for the presence of genetic modification by targeting NptII kanamycin resistance, Nos terminator, and 35S promoter gene regions which are the most commonly transformed gene regions in transgenic plants, and then ripening-delayed tomato seeds were tried to be identified in this study. F type truncated-PG gene and Sam-k gene were selected as the indicator of genetically modified ripening delayed tomatoes. DNAs of 25 seed samples were isolated by CTAB method and examined with several primer pairs, and the primer sets that provided consistent results were selected to conduct routine testing by PCR analysis of the samples. In screening analysis via conventional PCR, 4 samples were amplified with 35S, Nos and NptII primer sets. Among other samples, 3 of them were amplified with 35S and Nos primer sets and 2 of them were amplified only with 35S primer set. The amplification was observed with Nos, NptII and Sam-k primers in one sample and this sample was identified as 35 1 N, since the sequence result of the PCR product amplified with Sam-k primers showed high homology with the Samase gene of T3 Coliphage. F type truncated PG gene was not observed in any of the samples. Although this study demonstrates the presence of commonly used gene regions in genetically modified tomatoes, further analysis of the genetically modified ripening delayed tomato seeds via construct specificor event specific PCR techniques is needed for confirmation.
50

A Cross-cultural Study On Color Perception: Comparing Turkish And Non-turkish Speakers&#039 / Perception Of Blue

Kadihasanoglu, Didem 01 August 2007 (has links) (PDF)
Turkish speakers differentiate the blue region of color spectrum into mavi (blue) and lacivert (dark blue) / whereas non-Turkish speakers in this study had only one color term in the blue region. The present study aimed to explore the predictions of the Linguistic Relativity Hypothesis. Operationally, Categorical Perception (CP) effects were used. In Experiment 1, Turkish speakers performed a naming task to determine an average category boundary between mavi and lacivert. In Experiment 2, both Turkish and non-Turkish speakers&rsquo / color-difference detection thresholds were estimated on the average boundary as well as within the mavi and lacivert categories. The thresholds were also estimated in the green region, in which both groups had only one color term. 2-TAFC method, which eliminates the effects of memory or labeling and isolates the perceptual processes, was used to estimate the thresholds. Turkish speakers, and not non-Turkish speakers, were predicted to show CP effects only in the blue region: thresholds should be lower on the boundary than within-category. The result revealed that Turkish speakers&rsquo / color-difference detection thresholds were lower than those of non-Turkish speakers both in the blue and the green regions. The difference in the green region does not rule out the LRH. It is possible that this difference resulted from the limitations of the study. Finally, in Experiment 3, Turkish speakers&rsquo / thresholds were also estimated on their individual boundaries. The patterns of the thresholds revealed by Experiment 3 were similar to the pattern of the thresholds in Experiment 2.

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