Yes / Voltage instability problems in power system are an important issue that should be taken into consideration during the planning and operation stages of modern power system networks. The system operators always need to know how far the power systems from voltage collapse in order to apply suitable action to avoid unexpected results. This paper propose a review of some static voltage stability indices found in the literature to study voltage collapse reveals that various analytical tools based on different concept to predict voltage collapse phenomena. These static voltage stability indices present reliable information about the closeness of the power system to voltage collapse and identification of the weakest bus, line and area in the power network. A number of static voltage stability indices have been proposed in the literature, but in this only four of them will be considered. The effectiveness of these indices is demonstrated through studies in IEEE 14 bus reliability test system. The results are discussed and key conclusion presented. / MSCRC

Zugl.: Köln, Universiẗat, Diss., 2003.

The goal of this thesis is to describe the effective legislation of the cooperatives. Where appropriate this thesis compares the effective legislation to the previous legislation. The thesis tries to locate the problematic areas and to find solution to the given problems. This thesis is divided into 5 main chapters. The first chapter describes the history of cooperatives, because I think that without understanding the historic development no topic can be properly understood. Also this chapter describes the cooperative at a general level. The second chapter is formed of a general description of the membership in a cooperative with comparison to the previous legislation. This chapter covers also the basic principles of the membership in cooperative, as well as the content of the membership in cooperative. The third chapter describes the individual methods of the formation of the membership in cooperative pursuant to the effective legislation and where appropriate compares it to the previous legislation. It describes formation of the membership in the moment of formation of the cooperative and the procedure that needs to be followed. Also it describes the joint membership of the spouses in the housing cooperative. The fourth chapter deals with the alteration of the membership in the cooperative, which...

This thesis describes Outdoor Sports Courses for the 2nd Grade of Basic Schools in Liberec Region. The theoretical part discusses the close topics such as activities and education at elementary schools or summer and winter outdoor sports courses. The goal of the thesis is to obtain information about outdoor sports courses for the 2nd Grade of chosen basic schools in Liberec Region, and to recommend instructions for the optimal course education. Two methods of interrogation were applied: a controlled interview with school principals and questionnaire for students in 9th grade of elementary schools. Based on the above-mentioned interrogation methods, the diversity of sports courses in nature was investigated. In addition, the issue of the course capacity or material issues and staffing at schools were investigated. The research also concentrates on the participation of students in the courses and the reasons of their non-participation as well as students' satisfaction with the selection of available courses. Based on the students' responses, the ranking of the most popular courses was created. The results of the investigation were incorporated into the overall statistics which provide a comprehensive assessment of the course education in chosen basic schools in the Liberec district. Key words:...

Title: Study possibilities and job opportunities in outdoor activities in USA Objectives: The object of this thesis is to research and describe study possibilities at American universities and job opportunities in outdoor activities in USA. Methods: This thesis is literature review and analyses printed sources available related to researched topic and internet websites containing current information in researched subject. Also, it was used own experiences of the thesis author. The primary source of information were publications from UK FTVS library, thesis written under the supervision of the experts at outdoor sports department at UK FTVS and thesis from other Czech universities teaching outdoor activities. Further important source was specialized publications, especially articles from Gymnasion magazine, next, articles from EBSCO databases. During the research of USA universities offering outdoor activities courses, educational system, scholarships, job opportunities, transfer and visa options, were used also internet sources for topicality reason and own experience. Results: Outdoor education and activities industry constantly dynamically develops and so creates many job positions for qualified workers for profitable or non-profit organizations. Universities in USA offer more and more...

Ve své diplomové práci se zabývám možností využití strategického systému řízení organizace ? Balanced Scorecard ve specifických podmínkách nestátních neziskových organizací. BSC se již řadu let využívá v komerčních podnicích k realizaci a ?zhmotnění? strategie a zároveň se snaží nabídnout nový (vyvážený) pohled na hodnocení výkonnosti podniku. Pokouším se poukázat na problematiku řízení nestátních neziskových organizací, vystihnout nejvýraznější rozdíly a najít odpověď na otázku, je-li metoda BSC vhodná k implementaci v nestátním neziskovém prostředí a s jakými specifiky. Zjištěné teoretické poznatky implementuji na vybranou neziskovou organizaci (občanské sdružení KAM) s cílem vystihnout obtíže i přínosy BSC v daném prostředí. Součástí mé diplomové práce je také drobný průzkum zabývající se znalostí metody v nestátním neziskovém sektoru

This diploma thesis is dealing with life and professional destiny of Jaroslav Kadlec. It arose from the research of reference books and historical sources archived in the State District Archives in České Budějovice and State Regional Archives in Třeboň. Memories of his close friend Msgre. Václav Kulhánek are integral to the thesis. This thesis begins with the look at the historical period, the development and status of the Catholic Church in the context of Czechoslovakia. It briefly acquaints us with the life of Jaroslav Kadlec, his choice to become a priest, his religious and teaching career. Then this thesis clarifies his life difficulties connected to communist persecution. The next part of this thesis is focused on his personal life and his studies, both of which are closely related to the city of České Budějovice. He spent a considerable part of his life there, whether as a student of the Gymnasium of J. V. Jirsík or later taking part in the Episcopal theological seminar, there also as a pedagogue. He was returning to České Budějovice not only in his memories but through his scientific work as well.

ABSTRACT A theoretical and experimental study of the vibrational and chemical relaxation rates of diatomic gases, in flows behind shock waves and along nozzles,is made here. ¶ The validity of the conventional relaxation rate models, which are generally used to analyse experiments, is tested by developing a detailed microscopic description of the diatomic relaxation processes. Assuming the diatomic molecules to be represented by the anharmonic Morse Oscillator, the vibrational Master equation, which describes the time variation of each vibrational energy level population, is constructed by allowing one-quantum vibration to translation (V-T) energy exchanges and vibration to vibration (V-V) energy exchanges between the molecules. Dissociation and recombination are allowed to occur from, and to, the uppermost vibrational level. Solving the Master equation, it is found that a number of effects are explained by the inclusion of V-V transitions. In particular it is found that V-V energy exchanges cause the induction time for H2 dissociation to be increased; suggest that the linear rate law, for H2 and Ar mixtures, fails for a H2 mole fraction above 20%; give an acceleration of vibrational excitation as equilibrium is approached for H2 and N2; cause the vibrational temperature to be lower than the value found without V-V transitions for vibrational de-excitation in nozzle flows of H2 and N2, and conversely for recombination of H2 in nozzle flows. The most important result is the demonstration that conventional nozzle flow calculations, with shock-tube-determined dis-sociation and vibrational excitation rates, appear to be valid for the recombining and vibrationally de-excitating flows considered. ¶ The dissociation rates of undiluted nitrogen are measured in the free-piston shock tube DDT, using time-resolved optical interferometry, over a temperature range of 6000-14000K and confirm the strong temperature dependence of the pre-exponential factor observed by Hanson and Baganoff (1972). ¶ The vibrational de-excitation and excitation rates are determined in the small free-piston shock tunnel T2 over temperature ranges of 2000-4000K and 7000-10300K, respectively, by measuring the shock angles and curvatures, from optical interferograms, of flow over an inclined flat plate in the nonequilibrium nozzle flow. The de-excitation rate is found to be within a factor of ten of the excitation rate, while the excitation rate of N2 by collision with N is found to be less than about 50 times the excitation rate of N2 by N2. The dissociation rates of nitrogen, in the flow behind a shock attached to a wedge, are investigated in the large free-piston shock tunnel, using the shock curvature technique. The discrepancy, reported by Kewley and Hornung (1974b), between theory and experiment at the highest enthalpy is found to be resolved by including the measured helium contamination (Crane 1975) in the free-stream. Reasonable agreement is obtained between experimental shock curvatures and calculations using accepted dissociation rates.

Theoretical part of the thesis consists of chapters which deal with values and motivation that influence people in their lifestyle. Next part focuses on men working in helping professions and their reasons for choosing this profession. Last but not least, the thesis defines the issues of gender. The aim of this thesis is to ascertain men's motivation for university studies of social work at Faculty of Health and Social Sciences at University of South Bohemia in Ceske Budejovice (ZSF JCU). The attitude of these men to the studies is pointed out as well. The thesis aims to find out whether men studying this field of study want to be employed in this field. The research question set for this aim is: What are the men's main reasons for choosing the study of social work? The qualitative strategy of research was used to process the theoretical part of thesis. It was implemented by means of methods of questioning by semi-structured interview. Analysis of data was evaluated by means of grounded theory method. The sample consisted of 8 communication partners, who study or studied Social work in public administration at ZSF JCU. The research shows that men are motivated to the studies by desire to help and contact with other people. Equally, achievement of university education played an important role for their decision. They consider the degree to be a useful tool for finding employment. Men evaluated the study of social work, which resulted in a decision whether they would like to work in social service after their studies. The findings can be useful for management and teachers of the field of study of social work since the results can provide an overview of students' motives for studying social work. Teachers can use these findings for reflection on new ways how to motivate potential students of social work. The thesis can be a benefit of field of social work, which gets an overview of students' point of view on finding employment within social services.

Les MOSFETs ultra-thin body UTB ont été fabriqués avec une technologie auto-alignée. Le canal conducteur est constitué d’InGaAs à 75% de taux d’indium ou d’un composite InAs/In0,53Ga0,47As. Une fine couche d'InP (3 nm) a été insérée entre le canal et l'oxyde, afin d’éloigner les défauts de l’interface oxyde-semiconducteur du canal. Enfin, une épaisseur de 4 nm d'oxyde de grille (Al2O3) a été déposée par la technique de dépôt des couches atomiques. Les contacts ohmiques impactent les performances des MOSFETs. La technologie UTB permet difficilement d’obtenir des contacts S/D de faibles résistances. De plus, l’utilisation de la technique d’implantation ionique pour les architectures UTB est incompatible avec le faible budget thermique des matériaux III-V et ne permet pas d’obtenir des contacts ohmiques de bonne qualité. Par conséquent, nous avons développé une technologie auto-alignée, basée sur la diffusion du Nickel « silicide-like » par capillarité à basse température de recuit (250°C) pour la définition des contacts de S/D. Finalement, nous avons étudié et analysé la résistance de l'alliage entre le Nickel et les III-V. A partir de cette technologie, des MOSFET In0,75Ga0,25As et InAs/In0,53Ga0,47As ont été fabriqués. On constate peu de différences sur les performances électriques de ces deux composants. Pour le MOSFET InAs/InGaAs ayant une longueur de grille LG =150 nm, un courant maximal de drain ID=730 mA/mm, et une transconductance extrinsèque maximale GM, MAX = 500 mS/mm ont été obtenu. Le dispositif fabriqué présente une fréquence de coupure fT égale à 100 GHz, et une fréquence d'oscillation maximale fmax de 60 GHz, pour la tension drain-source de 0,7 V. / Abstract : Silicon-based devices dominate the semiconductor industry because of the low cost of this material, its technology availability and maturity. However, silicon has physical limitations, in terms of mobility and saturation velocity of the carriers, which limit its use in the high frequency applications and low supply voltage i.e. power consumption, in CMOS technology. Therefore, III-V materials like InGaAs and InAs are good candidates because of the excellent electron mobility of bulk materials (from 5000 to 40.000 cm2 /V.s) and the high electron saturation velocity. We have fabricated ultra-thin body (UTB) InAs/InGaAs MOSFET with gate length of 150 nm. The frequency response and ON-current of the presented MOSFETs is measured and found to have comparable performances to the existing state of the art MOSFETs as reported by the other research groups. The UTB MOSFETs were fabricated by self-aligned method. Two thin body conduction channels were explored, In0,75Ga0,25As and a composite InAs/In0,53Ga0,47As. A thin upper barrier layer consisting of InP (3nm) is inserted between the channel and the oxide layers to realized a buried channel. Finally, the Al2O3 (4 nm) was deposited by the atomic layer deposition (ALD) technique. It is well known that the source and drain (S/D) contact resistances of InAs MOSFETs influence the devices performances. Therefore, in our ultra-thin body (UTB) InAs MOSFETs design, we have engineered the contacts to achieve good ohmic contact resistances. Indeed, for this UTB architecture the use of ion implantation technique is incompatible with a low thermal budget and cannot allow to obtain low resistive contacts. To overcome this limitation, an adapted technological approach to define ohmic contacts is presented. To that end, we chose low thermal budget (250°C) silicide-like technology based on Nickel metal. Finally, we have studied and analyzed the resistance of the alloy between Nickel and III-V (Rsheet). MOSFET with two different epilayer structures (In0,75Ga0,25As and a composite InAs/In0,53Ga0,47As) were fabricated with a gate length (LG) of 150 nm. There were few difference of electrical performance of these two devices. We obtained a maximum drain current (ION) of 730 mA/mm, and the extrinsic transconductance (GM, MAX) showed a peak value of 500 mS/mm. The devices exhibited a current gain cutoff frequency fT of 100 GHz and maximum oscillation frequency fmax of 60 GHz for drain to source voltage (VDS) of 0.7 V.