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TECHNICAL UNIVERSITY - SOFIA: Recent submissions

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Title: Някои възможности за оптимизация на операциите в процесори за обработка на масиви от данни Author: Манолов, Петър Георгиев; Manoilov, Peter Georgiev Date: 1995 Abstract: The article investigates some possibilities for optimization of data operations in specialized integrated circuits, intended for design of array processors. The optimization work uses two methods - the method of vectorization and the method of pipelined execution of the program cycles. Examined are the operations of applied programs, executed ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Изследване на рекурсия и итерация в процедурното програмиране Author: Бонев, Стоян Бонев; Bonev, Stoyan Bonev Date: 1995 Abstract: Recursion and iteration as alternate approaches applied to procedure-oriented programming to solve a wide range of practical problems are compared. Different kinds of recursion and iteration as well as modes for their program implementation are under discussion. Space and time consumption characteristics for alternate solutions of four ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Невронно-размит модел и приложение в задачата за банков кредит Author: Трифонов, Румен Иванов; Trifonov, Roumen Ivanov Date: 1995 Abstract: A hybrid model, which is integration of two different directions of the Artificial Intelligence -neural networks and fuzzy systems, is presented. The cooperation of the both in one model aim to overcome the weaknesses of the particular paradigms and to give most potential possibilities for application. A hyrarchical system of back propagation ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Зависимост между вида на форманта и структурно- семантичното уравнение на производни лексеми с локативно значение в славянските езици Author: Виларова, Маргарита Димитрова; Vilarova, Margarita Dimitrova; Ангелов, Николай Петров; Angelov, Nikolai Petrov Date: 1995 Abstract: A correlation analysis based on a generalized structural-semantic model, was applied by the study of a differentiated word-building group of words, featuring location indication as a common semantic parameter, and having similar structures in the three Slavonic languages Bulgarian, Polish and Russian. The obtained results show the relationship ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Планиране на ресурсите в разпределени паралелни компютърни архитектури Author: Боровска, Пламенка Иванова; Borovska, Plamenka Ivanova Date: 1995 Abstract: This paper develops a new method for resource scheduling in distributed parallel computer architectures based on priority levels with communication costs minimization. The main goal is to achieve maximum performance of the parallel computer system of broad topological spectrum for various applications which is a combinatorial optimization ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Regular computer structures for fast solving of partial differential equations Author: Borovska, Plamenka Ivanova; Боровска, Пламенка Иванова Date: 1995 Abstract: In this paper an efficient 3-D systolic computer architecture of cube topology is presented for fast solving of partial differential equations (PDE’S). The main goal is to acocommodate the existing parallel versions of algorithms for solving PDE’s to the specific computation geometry of the nearest neighbor connectivity of the cube topology ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Изследвания на въздушните потоци, обтичащи корпусите на металорежещите машини Author: Попов, Георги Тодоров; Popov, Georgi Todorov Date: 1995 Abstract: Experimental results concerning the velocity field of air flows blowing the body walls of machine tools at compulsory convection and discussed. Information is obtained about some aspects of an flows distribution and velocity field the researches provide a basis for mathematical description of the velocity field and creation of data base ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Евpиcтични методи в обучението по техническите дисциплини Author: Колева, Нели Любенова; Koleva, Nelly Lubenova Date: 1995 Abstract: Teaching always needs variety and quality. Qualitative new teaching methods have been elaborated as for that purpose, being based on a flexible balance between academic and pragmatic type of knowledge and both standard and not standard skills for problematic situations resolving. A didactic technological module has been drawn and motivated ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Относно причините за получаване на неточности на размерите при установяване на заготовките за обработка и настройване на технологическата система на размер Author: Пангелов, Иван; Pangelov, Ivan Date: 1995 Abstract: As a result of an analysis of different cases for the billet setting and the adjustment of the technical system on size we have found the reasons for size deviations and dispersions in the processing of an individual billet and a lot of billets. It is shown that in the indirect orientation of the initial technological basis towards the tool ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Особености на кристализацията в заваръчната вана Author: Ямболиев, Тeофил Ангелов; lamboliev, Theofil Angelov Date: 1995 Abstract: The influence of the G ГА welding parameters on the weld pool solidification of an Al- alloy is investigated. 5 types of solidification structure can be distinguished. UTS as high as 94-99% and elongation 89% compared with these of the base metal performs the stray-axial grain structure. Nucleous availability is necessary condition for ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Автоматизирано определяне на последователността на заваряване при изработване на конструкции Author: Лафчиев, Георги Борисов; Lafchiev, Georgi Вorisov; Ямболиев, Теофил Ангелов; Iamboliev, Teofil Angelov Date: 1995 Abstract: Multiple factors influence the welding sequence. Therefore , its specification is both labour and time consuming, especially in case of heavy or sophisticated weld structures. An algorithms for a welding sequence specification was developed which contributes to an increase of the technological design productivity and minimizes the operator ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Нов метод за пресмятане на силата на триене в направляващите на металорежещи машини Author: Мишев, Георги; Mishev, Georgi Date: 1995 Abstract: The friction in (he sliding guide ways of the machine tools is an essential parameter deforming the static and dynamic behavior of the straight-forward moving machine elements-slides and tables. The objective of (his paper is to introduce a new method for estimation of (he friction force in (he sliding guide ways of (he machine tools ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Усъвършенствуван приложен метод за определяне на термични напрежения в тьнки пластини Author: Раевска, Снежана; Raevska, Snejana Date: 1995 Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Компютърна програма за подготовка и симулиране на обучението по електродъгово заваряване Author: Раевска, Снежана; Raevska, Snejana Date: 1995 Abstract: Computer multimedia systems poses some qualities for education encluding the technical objects, too. In the current publication we inform for some attempt of creation of such multimedia program for the purposes of the part of laboratories on Welding technology for the students of Manufacturing engineering " in the Technical University of ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Изследване на механичните характеристики на предварително напрегнати влакнесто-композиционни материали Author: Маринов, Валери; Marinov, Valery; Левичаров, Георги; Levitcharov, George Date: 1995 Abstract: Experimental results of the initial research work on new class composite materials with prestressed fibers are presented. Experiments with fiber reinforced plastics with glass fibers and epoxy resin matrix are carried out. The tensile and flexural strengths are investigated for specimens with different rate of prestress. The experimental ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Моделиране по метода на крайните елементи на образуването на наслойка при правоъгълно рязане на алуминий Author: Маринов, Валери; Marinov, Valery Date: 1995 Abstract: A thermo-viscoplastic finite element model is presented to simulate metal flow, temperature and plastic deformation in the vicinity of the cutting edge when machining aluminum with HSS tool. The mechanical and thermal properties of the work material are accepted to depend on the cutting temperature. On the basis of the Von Mises criterion ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Относно проектировъчнотодинамично изчисление на автомобила Author: Козарев, Георги Йорданов; Kozarev, Georgi Yordanov; Нейков, Светозар Ангелов; Neikov, Svetozar Angelov Date: 1995 Abstract: The paper discuss the value of some parameters concerning the process of dynamical design computation for the vehicle. As a result of computer analisys of some statical data the autors propose more precise values for some parameters as well as some empirical relations between: - the mass of the paying load the permanent mass of the ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Технология за производство на стъклопластова локомотивна антена Author: Раденков, Филип Димитров; Radenkov, Philip Dimitrov; Диков, Валентин Каменов; Dikov, Valentin Kamenov; Анастасов, Милчо Георгиев; Anastasov, Milcho Georgiev Date: 1995 Abstract: The locomotive antenna is used in the automatic railways transport control and it is mounted under the locomotive. Besides the radiolucency it must be resistant to vibrations, impacts and environmental aggressive media. Thia equipment was elaborated and was practically realized by original technology of ULTrNM* and TIATS-BDJ. A glass-reinforced ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Легиране на поликапроамид с модифициран бентонит Author: Диков, Валентин Каменов; Dikov, Valentin Kamenov; Анастасов, Милчо Георгиев; Anastasov, Milcho Georgiev Date: 1995 Abstract: The thermoplastic polymers modified by elastomers show improved impact resistance but deteriorated static mechanical characteristics. The aim of the present work Is to better the general mechanical properties of polycaproamide by involving small amounts of elastomer immobilized on dispersed filler.Poly(butadiene-co-styrene) latex particles ... Library:
TECHNICAL UNIVERSITY - SOFIA
Title: Пресмятане на зъбни колела от вискозоеластични материали Author: Сгурева, Иванка Николаева; Sgureva, Ivanka Nikolaeva; Христова, Евелина Любчова; Hristova, Evelina Lyubchova Date: 1995 Abstract: Methods for calculating of polymeric materials gears,based on the hereditary theory of viscoelasticity has been developed. In the formulas for calculating of the contact strength and deformation of the gears,all the functions of elastic constants are replaced by corresponding operators. The methods has been applied for calculating of ... Library:
TECHNICAL UNIVERSITY - SOFIA