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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.
31

Development of a Subminiature Enhanced Flight Termination Receiver

Woodard, Tracy, Vetter, Jeff, Rodzinak, Jason 10 1900 (has links)
ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada / As the size of missiles and UAVs shrink, so does the volume available for the Flight Termination System (FTS). Small, light weight FTS systems open up applications not possible with the larger and heavier conventional FTS systems. This paper presents a novel approach for the design, implementation and test of a subminiature Flight Terminate System Receiver for use in the Subminiature Flight Safety System (SFSS). This receiver implements the new digital-based Enhanced Flight Termination System (EFTS) protocol, while maintaining a volume of less than 1 cubic inch with power consumption of less than 2 watts. Combining all of the necessary functionality into a small package while meeting the rigorous requirements of the Range Commanders Council (RCC) specifications (EMI, vibration and shock) presented significant challenges. The Subminiature Enhanced Flight Termination Receiver used in the SFSS has been named the "SEFTR".
32

Důvody výpovědi z pracovního poměru / Grounds for termination of employment

Plch, Marek January 2017 (has links)
This thesis deals with the issue of grounds for notice of termination of employment. It also analyses institutes that are closely related to this issue, like termination of employment in general, notice of termination and its requisites, protective periods, or employer's obligations that arise from notice of termination in certain cases. When evaluating and assessing the legislation it's necessary to keep in mind two legal principles, the principle of flexibility and the principle of protection of the weaker party (the employee). In the legislation of termination of employment and in labour law in general these two principles clash. One of the specifics of labour law is relatively rigid and enforced legislation that tries to equalize the inequalities in the employment relationship between employee and employer by, among other things, tying the possibility of the employer to terminate employee's employment on fulfilling particular material requirements. In practice, this legislation can be perceived as excessively restrictive. In particular, the thesis focuses more closely on these material requirements that need to be fulfilled in order for the employer to be able to terminate the employee's employment. The grounds for notice of termination themselves are defined exhaustively in the Labour Code and we can...
33

Investigations into long-standing problems in radical polymerization kinetics : chain-length-dependent termination rate coefficient and mode of termination.

Alghamdi, Majed Mohammed January 2014 (has links)
The present thesis investigates some long standing problems in radical polymerization (RP). The major aim is to consider the feasibility of using simple techniques to provide more insight into the kinetics of RP. This can contribute to fundamental knowledge of radical polymerizations, particularly with respect to the mode of termination (λ), average termination rate coefficient (<kt>), chain-length dependence of termination (CLDT) and chain transfer through in-depth investigations of the rate of polymerization (Rp) and molar mass distribution (MMD), the latter especially via mass spectrometric (MS) analysis. The termination process was first investigated. Observation of changes of <kt> (or equivalently Rp) and MMD by a variety of factors such as solvent, monomer and initiator concentrations, temperature, pressure and growing radical size were explored. Non-classical kinetics and chain-length dependency of termination were confirmed. Accessibility of CLDT information was clearly evident. Although observed results meet fully with composite-model expectations, issues such as chain transfer were found to have an effect on the CLDT parameters determined from rate measurements. Specifically, dilute-solution polymerization of methyl methacrylate (MMA) in methyl isobutyrate (MIB) showed evidence of such an effect. Scaling of quantities that are experimentally accessible such as <kt> with DPn yield CLDT parameters in good agreement with what has been reported from recent PLP experiments. This was confirmed for several monomers. The temperature dependence of termination was also investigated and found to show evidence for CLDT. In contrast, the variation of <kt> with pressure did not demonstrate similarly strong CLDT effects. Evidence for and determination of chain transfer to MIB was also obtained. This was followed up by investigations into the important parameter λ using the MS technique. Surprisingly little is known about λ despite its long history and its apparent importance to polymer properties. Firstly, the robustness of using MS was explored, with the method passing numerous consistency checks. Although no large dependence of MS instrument was found, electrospray-ionization mass spectrometry (ESI-MS) provided best resolution. Second, the type of initiator, the initiator concentration and the solvent were found to have no measurable effect on λ, even when chain transfer occurred. In further work, increasing temperature seemed to have an influence on λ, leading to an increase in the proportion of disproportionation. However, pressure was found to have only a small influence on λ. The effect of monomer on λ was also studied. In the final part of this work, a preliminarily investigation into the viability of using Raman spectroscopic techniques to study auto-acceleration, also called the gel effect, for bulk MMA radical polymerization was presented. The results showed the possibility of using such a technique to follow the reaction to high conversion. The effect of temperature and initiator concentration on auto-acceleration were also presented. The outstanding results of this thesis are: (1) The application of CLDT theory to better understand rate results from low-conversion polymerizations. (2) In particular, the use of CLDT principles to explain termination activation energies across a range of monomers. (3) The validation of the MS method for quantitative determination of mode of termination by carrying out an array of consistency checks. (4) Showing that MS results are consistent with CLDT theory. (5) Utilization of the MS method for the first ever reliable measurement of the variation of mode of termination with temperature, pressure and monomer.
34

History of pregnancy termination as a risk factor for preterm birth, Virginia 2000-20007

Macdonald, Jennifer 01 May 2009 (has links)
Abstract Objectives: The objective of this study was to determine if an association exists between prior induced and prior spontaneous pregnancy termination (PIPT and PSPT) and preterm birth (PTB) of first live births in Virginia. Methods: Data was collected by linking maternal data from Virginia’s live birth and fetal death registries. All first live, singleton births occurring in Virginia from 2000-2007 were analyzed. Logistic regression models that controlled for various demographic, medical and obstetric history factors were used to determine associations among prior pregnancy termination types. Results: Compared with women who had no history of previous pregnancy terminations, women who had 1 (OR = 1.1, 95% CI 1.31, 1.53), 2 (OR = 1.2, 95% CI 1.12, 1.24) and 3 or more (OR = 1.4, 95% CI 1.07, 1.13) total prior pregnancy terminations had an increased odds of experiencing PTB. Increased odds of PTB were found for women who had 2 (OR = 1.1, 95% CI 1.05, 1.18) and 3 or more (OR = 1.3, 95% CI 1.39, 1.61) PIPTs. Women who reported 1, 2, 3 or more PSPT had PTB odds-ratios of 1.4 (95% CI 1.37, 1.50), 1.7 (95% CI 1.48, 1.98) and 3.0 (95% CI 2.09, 4.22) times, respectively. Conclusion: Two or more PIPT and one or more PSPT were found to be a significant risk factor for PTB of a first live birth in Virginia, and women having 3 or more PSPT had three times the odds of experiencing this outcome. Health practitioners should take this data into account to target research, education and action strategies to those high risk groups of women associated with obtaining induced terminations and to those women more susceptible to spontaneous termination of pregnancy.
35

Skončení pracovního poměru / Termination of an Employment Relationship

Sztacho, Petr January 2019 (has links)
1 Abstract This diploma thesis deals with the termination of an employment relationship. Its aim is to aptly depict and characterize individual ways of terminating an employment relationship with a focus on the termination of an employment relationship by labor-juridical acts, also to call attention to some application difficulties and to mention proposals de lege ferenda. Firstly, the thesis is focused on the different areas of labor law, its functions and also on the relation between labor law and civil law. The attention is further paid to the explication relating to the employment relationship as well as to labor-juridical acts and some consequences of their defects. The focus of the thesis lies in the analysis of individual ways of terminating an employment relationship. The employment relationship can be terminated either on the basis of labor-juridical acts, on the basis of a labor-juridical event, or on the basis of official decisions. Labor-juridical acts leading to the termination of an employment relationship are agreement on the termination of an employment relationship, the notice of termination, the immediate termination of an employment relationship and termination of en employment relationship during the probationary period. The labor-juridical events on the basis of which the employment...
36

Nároky z neplatného skončení pracovního poměru / Claims arising from invalid employment termination

Šulc, Radim January 2021 (has links)
Claims arising from invalid employment termination Abstract in English language The goal of this Master thesis is to discuss and analyse the law and case law surrounding invalid employment termination and claims arising from such disputes. An unseparable part of this issue is the distinction whether such an action taken by a party is valid, invalid, or putative. In the introducion i describe the goals and themes of this Master thesis in more detail. In the first chapter I describe employment itself, it's features and it's importance in the context of Labour Code. I also discuss the difference between it and other types of labour contracts, and I try to find an answer to why there is such a few cases of parties pursuing legal action in response in invalid termination of these contracts. The second chapter contains the ways employment can be lawfully terminated, where I focus primarily on unilateral termination. I describe the relatively uncomplicated mutually agreed employment termination, dismissal both from the employer's end and the employee's end, including all legal grounds for dismissal. Then I briefly describe severance pay, an important claim of the employee. The next subchapter deals with immediate termination of employment, within the duration of probatory period or not, with emphasis on the...
37

RCC 319-92 AND ARMY TACMS (ATACMS) AN UNCOMMON EXPERIENCE

Thomas, D. Paul 10 1900 (has links)
International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California / The Range Commanders Council "Flight Termination Systems Commonality Standard," RCC 319-92, has been written with the noble goal of providing "common design, test, and documentation requirements for Flight Termination Systems (FTS)." As is often the case with standards of any kind, the devil is in the details! The Army TACMS (ATACMS) Block II Flight Termination/Telemetry System design has been significantly affected by the constraints imposed by RCC 319-92 as well as by Lockheed Martin Vought Systems customers' interpretations of those constraints and requirements. Important system elements are discussed along with some of the engineering decisions made to achieve compliance and the rationale behind those decisions. It is hoped that this monograph will acquaint potential users of RCC 319-92 with some of the issues involved in achieving compliance.
38

FLIGHT LINE TEST SET, IRIG TONE GENERATOR AND FLIGHT TERMINATION TRANSMITTER ON A PC CARD

Cirineo, Tony 10 1900 (has links)
International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / This paper describes the development of a PC based IRIG tone generator and flight termination transmitter. The tone generator and flight termination transmitter card are part of a flight line test set. The test set has several PC based cards which include an S-Band telemetry receiver, a bit synchronizer, a decommutator, an encryption support card and the flight termination transmitter card. The test set can perform a complete end to end test of a weapon’s flight termination system prior to loading on an aircraft.
39

The effects of war on treaties

Ramiz, Gailan Mahmoud January 1972 (has links)
No description available.
40

EFTS RECEIVER WITH IMPROVED PERFORMANCE

Wardle, Mason 10 1900 (has links)
ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The PAM representation was used to formulate a reduced-complexity detector for the Enhanced Flight Termination System (EFTS) whose performance is 5.6 dB better than limiter-discriminator detection when no phase noise is present and 3.4 dB better in the presence of expected phase noise in EFTS.

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