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Показване на публикации 61-80 от 899

Заглавие: Специфична деформационна работа при кос удар с конус по безкрайна мембрана Автор: Карапетрова, София Василева; Karapetrova, Sophia Vasileva Дата: 1995 Резюме: The distribution of the specific strain work is established for the problem of an oblique impact with a cone on an infinite membrane (for the case where the transverse wave is propagated in the plane area only); this work being general, for the change in shape, and for that in volume. The distribution has been built for both areas of the ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Изследване влиянието на отклонението от размерите на контактната двойка шайба- вътрешна лагерна гривна при търкалящи лагери тип RS върху момента на триене Автор: Карапетрова, София Василева; Karapetrova, Sophia Vasileva Дата: 1995 Резюме: A formula has been theoretically derived, which gives the relationship be¬tween the rated dimensions of the contact couple (sealing washer-inner bearing ring) and the frictional moment between these elements. On the basis of this formula a PC program has been also written. By using the relationship obtained, the effect of the deviation of ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Self-exited oscilllations within mixed friction regimes when reading the hydrodynamic theory of lubrication Автор: Butchvarov, Stefan Nikolov; Бъчваров, Стефан Николов; Karapetkov, Stanimir Mihailov; Карапетков, Стефан Михаилов Дата: 1995 Резюме: Abstract: This paper deals with a dynamics model with two degrees of freedom on the basis of which a profound analysis is made about initiation and behavior of the self-exited oscillation. At the same time reads the hydrodynamics action of lubrication and dry friction with its dynamic performance. The different equations are solved in ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Оценка на ергономичните качества на работното място на мотокар универсален високоповдигач с полуеластично окачване на силовия агрегат Автор: Тодоров, Михаил Дамянов; Todorov, Michael Damyanov; Генов, Юлиян Асенов; Genov, Joulian Asenov Дата: 1995 Резюме: This paper is a continuation of the paper / //. In [ 11 is presented one mathematical model of a counterbalanced engine-driven fork-lift truck with half-elastic suspension of an engine and a hydrodynamic transmitter. This scheme is traditional for small trucks and it provides their optima! lengths. The engine with hydrotransmitter is directly ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Алгоритъм и числена процедура за идентификация на механичните характеристики на линейни динамични системи Автор: Генов, Юлиян Асенов; Genov, Julian Asenov; Чернева, Здравка Тодорова; Cherneva, Zdravka Todorova Дата: 1995 Резюме: Based on frequency analysis of input excitations and object reactions the transfer function is obtained. Then coefficients are approximated by least squares method. The mechanical characteristics are optioned by solution of non-linear system of equations using optimization procedure. Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Mutual influence Автор: Bozmarov, Petko Yordanov; Бозмаров, Петко Йорданов; Bozmarov, Yordan Petkov; Бозмаров, Йордан Петков Дата: 1995 Резюме: The mutual influence is considered between a multitude of identical, homogeneous and uniformly distributed vector fields, and a finite number of singular points, situated in isotropic, limited, three-dimensional space. The mutual influence is realized according to the given formulation of the problem. The obtained results are connected with ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: On the existing of a limit cycle or a class of quasi-linear autonomous systems Автор: Raeva, Maya Borisova; Раева, Майя; Bekjarski, Aleksandar Bogdanov; Бекярски, Александър Богданов Дата: 1995 Резюме: The quasi-linear autonomous systems have some interesting performances. It is shown in this article on existing of a limit cycle for a class of these systems. This class is defined and it is proofed a theorem for some cases. A computer program allow to make a visualization of the decisions of these systems. This show the exists of the limit ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Optimization problems in finite algebraic structures and some applications Автор: Bijev, Georgi Todorov; Бижев, Георги Тодоров Дата: 1995 Резюме: Some methods and algorithms for computer investigations in finite algebraic structures, connected with optimization problems are considered in this paper. The application field could be investigations of the structures themselves as much as optimization problems. A minimum generating set (MGS) B of a given finite structure S is constructed. ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Computer assisted analysis and design for a class of dynamic systems Автор: Venkov, Gancho Iliev; Венков, Ганчо Илиев; Krushev, Nedyalko Ivov; Крушев, Недялко Ивов Дата: 1995 Резюме: The structure and the main functions of the interactive system MOODS, developed by the autors, are described. This software system for optimization and visualization is applied for designing a class of dynamic systems. Two main problems are considered. The first problem deals with design via optimization of robust linear dynamic system with ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Continuity properties of the attainable set of singularly perturbed control system with time delay 1 Автор: Slavov, Iordan Ivanov; Славов, Йордан Иванов Дата: 1995 Резюме: A linear control system with time delay /h>0 and "small" real parameter e>0 in derivatives is considered. The behavior of the multifunction "(e, h)—> attainable set at the moment T" when I:,h >0' is investigated. Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: European Common Laboratory for Pedagogical Action-Research and Student-Centred Learning (ELaRA) Дата: 2023 Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: За приложенията на алгебрата Автор: Маринов, Васил; Marinov, Vasil Дата: 1995 Резюме: In this paper some researches of polylinear algebra are pointed popularly. There are some facts about the applications of mathematics in the technics. Some author's algebraical problems are published in the second pan Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Импримитивни N-тькани в двумерно финслерово пространство Автор: Панайотова, Галина Стоянова; Panajotova, Galina Stoyanova Дата: 1995 Резюме: In this paper are treared imprimhive n-tisstis in F. The concept imprimitives n-tissues concerning one-parameter Lie's group is defined, It also contains some special cases: imprimitive lines in F; imprimitives nets in F; imprimitives three-tissues in F. Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Гранична задача с краен брой импулси за система с управление Автор: Каранджулов, Людмил Иванов; Karandjulov, Ljudmil Ivanov Дата: 1995 Резюме: This work considers controlled differentia! system with boundary and impulsive conditions. A necessary and sufficient conditions for existence of a family of controls and corresponding family of solutions of the differential system, satisfying the generalized boundary and impulse conditions are obtained. For the analysis of a linear ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Asymptotic optimal algorithms for detecting signals in m-dependent markov noise Автор: Шишков, Благовест Борисов; Shishkov, Blagovest Borisov Дата: 1995 Резюме: Asymptotic optima! (AO) algorithms for detection of signals in additive in¬dependent Markov noise are synthesized. The algorithms require the storage of m past dam samples to achieve optimum performance. Il is A 0 memory discrete-time detector of a deterministic or qiiasideterministic signal in m-dependent Markov noise, As a measure of ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Анализ на грешката на средства за измерване с робастностна обратна връзка Автор: Цветков, Пламен Маринов; Tzvetkov, Plamen Marinov; Йорданова, Снежана Тодорова; Yordanova, Snejana Todorova Дата: 1995 Резюме: A measuring system with robustness feedback is proposed . An accuracy analysis of the system is carried out. The results obtained from the analytically derived expressions for the error of the measuring system and from the simulation of an example for a measuring device via the program SIMULINK prove the effectiveness of the robustness ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Акустичен контрол при производството на фаянсови плочки Автор: Борисов, Борис Ненков; Borisov, Boris Nenkov; Пенчев, Любомир Пенчев; Penchev, Liubomir Penchev Дата: 1995 Резюме: The possibility for поп-destructive control on the quality of ceramic tiles at the intermediate stage of their production is proven on the basis of the criteria suggested in this report. The efficiency of the method has been confirmed by industrial tests. Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Позиционно електрозадвижване за мраморообработващи машини Автор: Борисов, Борис Ненков; Borisov, Boris Nenkov; Гебов, Владимир Крумов; Ghebov, Vladimir Krumov; Генадиев, Асен Стефанов; Ghcnadiev, Assen Stefanov Дата: 1995 Резюме: This report proves that by choosing a suitable control system, the size of end products can be quarantined for long periods of operation. An algorithm for control of the cutting tool. The precision of control has been proven by industrial tests. Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Времево планиране на действия в робототехнически системи чрез клас обременени мрежи на петри и евристично търсене Автор: Димитров, Димитър; Dimitrov, Dimitar; Владимиров, Благовест; Vladimirov, Blagovest Дата: 1995 Резюме: A new model for solving the NP-hard problem of scheduling actions in robotic and FMS systems is presented. Actions share resources (machines, tools, etc.) and can be partially ordered or completely unordered. The model is based on the extended timed Petri Net (PN) in which time is treated not as an external resource, but really does participate ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA
Заглавие: Моделно-воден анализ на изображения Автор: Венков, Пенчо Георгиев; Venkov, Pentcho Georgiev Дата: 1995 Резюме: A method is developed to recognize and locate randomly oriented and partially occulted "flat" objects. It is based upon matching the edge descriptions of an image with models of 2 D objects, represented by segmented polygonal contours. The method uses a technique of hypotheses generation to predict the position of a model in the scene by ... Библиотека:
TECHNICAL UNIVERSITY - SOFIA

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