FEN BİLİMLERİ ENSTİTÜSÜ: Recent submissions
Now showing items 541-560 of 5292
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Performance analysis of basic and hybrid types of arq schemes
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)V ÖZETÇE Sayısal iletişim dizgelerinde ilgilenilen başlıca konu, kanal gürültüsünün neden olduğu iletim yanılgılarının nasıl denetleneceği ve yanılgısız çalışmanın nasıl sağlanabileceği dir- `Otomatik Tekrar îsteği (ARQ) ... -
Dynamic simulation and control of a multi purpose chemical plant
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)The aim of this work is to investigate the dynamicbehaviour of a typical multi-purpose chemical plant undervarious control structures.The mathematical models for the processing units of thistypical chemical plant are ... -
A Study of oxygen transfer in the fermentation of E. coli
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)In this work, the effect of oxygen transfer On the growthOfE. coli was studied. E.coli was grown in a glucose media usinga ten liter fermentor equipped with a flat blade impeller. Theprocess wariables chosen for the ... -
A theoretical investigation of the vacuum UV photolysis of carbon suboxide with trifluoromethane
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)In this dissertation, the vacuum-UV photolysis of C302 in thepresence of CHF3 at 1470 AO has theoretically been investigated with theintent to predict the main photolysis products.As already known, the primary photochemical ... -
Detection and estimation of tone signals using and adaptive line enhancer
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06) -
Discrete-time sliding mode control systems
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)The main philosophy of discrete-time variable structurecontrol systems is the same as its continuous-time versionwhich is the establishment of a sliding regime of the statetrajectories on a certain hypersurface.In this ... -
Control of satellite tracking antennas
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Succesful control of directing antennas is a major necessityfor a good and reliable space communication. The solutionof the problem for a s~mplified linear model is available.In practice, problems arising from nonlinearities,are ... -
Computer aided analysis and design of communication systems
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Communication technologies are many and ,complex nowadays , therefore alot of alternatives are available for the system designer . Under thiscircumtances , to create best solutions for communication systems withlimited ... -
Sensor optimization for linear stochastic systems
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)The sensor optimization problem for linearstochastic systems is solved to. minimize the cost due tofilter gain matrix, measurement matrix and system noise.The solutions include both the optimum measurement matrixand system ... -
Computer representations of natural languages
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06) -
A short term cutting stock formulation for minimization of work in process and shortages in sheet metal industry
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Cutting stock problems rank among the first applications ofoperations research and they have been implemented in a wide range ofopepations for optimization of cutting and allocation problems.In this study, a cutting stock ... -
Perturbation analysis in discrete event simulation
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Perturbation Analysis of Discrete Event Dynamic S y s t ems(DEDS) is a recently introduced method for estimating thesensitivity of the performance of DEDS to adjustableparameters.In this thesis, the general concept of the ... -
Design and development of an information system for the top management
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Information has always been one of the main ingredients of businessprocesses and forms the basis of all decisio'n-making whether in acorporate or personal sense.An effective Management Information System (MIS) determines ... -
Control valve sizing
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06) -
Quality costs and quality cost systems
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)From the very beginning of quality control discipline,there has beena concern with the economic aspects of quality.Quality costs subject isthe most important economic aspect of quality.In this study,the major principles ... -
Measuring efficiency of bank branches
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Each organization may control itself as far as it measures itsoperational performance. Therefore, each system should establish itsown control mechanism. Efficiency is an important component oforganizational system performance ... -
Finite element analysis of nonlinear heat conduction problems
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Nonlinear heat conduction. problem is stated and its finiteelement and time discretizations are given. Five different.numericalmethods for the solution of nonlinear heat conduction problems aresummarized. One-dimensional ... -
Solar assisted biogas plant production and utilization
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)Today, people are seeking various new energy sources in order tosolve the energy crisis. The main factors which encouraged us to study onthis object can be stated as follows, biogas which is one of the alternativeenergy ... -
Determination of minimum aspect ratio for rigid PVC pipe die
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)In this treatise, an effort is made to determine a minimumaspect ratio for a rigid PVC pipe die. In pursuing that objective,the mechanisms whereby extruders work and how plastics flow throughdies are presented. Following ... -
Effect of single overloads of fatigue crack propagation in Al 7075 T6
(BOĞAZİÇİ ÜNİVERSİTESİ/Fen Bilimleri Enstitüsü, 2018-08-06)In this study· the effect of single tensile overloadson fatigue crack propagation in Aluminum 7075-T6 was investigated.Firstly,the relationship between the crack growth rateand the base stress-intensity factor range of the ...