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دراسة مقارنة لبعض اساليب الحل الاساسي لنماذج النقل == A Comparative Study To Some Methods of Basic Solution of Transportation Models
اسم المؤلف:
عمار محمد صالح عبد الرحيم
اسم المشرف:
عبد اللطيف حسن شومان
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
المستخلص:
تعد مشكلة النقل من المشكلات الاساسية التي تعالجها البرمجة الخطية وتحليل هذه المشكلات له اهمية كبيرة في اختزال التكاليف العالية للنقل وكذلك اختزال الوقت والجهد اللازم لذلك. وتعتمد عملية التحليل بصورة اساسية على ايجاد حل اساسي ابتدائي مقبول (Starting Basic | Transportation problem is one of the basic subjects that are quired by liner programming and the process of analyzing the transportation problems has great importance to reduce the high cost of transportation and the time and effort needed to submit. the analyzing process basically depends on finding a fundamental solution Elementary acceptable (Starting Basic Feasible Solution), to be the firm ground to proceed to another solutions until we reach the optimal solution, which represents the true measure of process Decision making.However (Starting Basic Feasible Solution), is better (cheaper) the number of iterations that required to reach the best solution will be less. therefore in this study we have to review the traditional ways of finding a fundamental solution which is (row Minimum, Modified row Minimum, column Minimum, Modified column Minimum, the north West corner, least cost, Russell's approximation method, and Vogel's approximation method). In addition to review four new methods two of them are published (Zidan's method and average method). and the other two methods are founded by the researcher as a result of his search & study (the first and second suggested method SM.1 and SM.2).to know the efficiency of these methods we should be tested, therefore we will use the simulation in trial side of the research to generate (100) of random transportation problems and solve it by the above methods for a comparison between these methods depending on the results that we gain from solutions. Based on the results of the comparison relied on the method that gave the best results in finding Basic Solution to be used in the application side of research, which is the process of constructing three transportation models to transfer of the distribution network for petroleum products, white available in stores alkhoznip and refineries (processing centers) to be distributed to counties of Iraq (demand centers) by tanker trucks (tankers) and put this models in a transportation schedules to solve it by the beast basic method and to be improved until we reach the optimally
👁 مشاهدة
استعمال مباريات التطور التعاونية المقابلة في تحديد نقاط الجذب للمجتمعات مع تطبيق عملي == The Use of Cooperative Games Development In Determining The Corresponding Points of Attraction For Communities With A Practical Application
اسم المؤلف:
زينب عبد الحسين عبد الرزاق
اسم المشرف:
لميعة باقر جواد الجواد
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
المستخلص:
في هذه الرسالة ومن خلال الفهم العام لنظرية الالعاب التطورية ( التي تعد من النظريات الحديثة ) القائمة على محاكاة المجتمعات في تطورها الديناميكي وصولا الى الامثلية في الاستراتيجيات بمرور فترة زمنية طويلة , ومهما طرات على المجتمعات من تذبذبات صائبة وخاطئة ف | In this letter and through the general understanding of Evolutionary game theory (which is one of the modern theories) based on the simulation of communities in the development of dynamic and down to the fitness of strategies over the long period of time, and whatever occurred in the communities swings right and wrong in the selection of strategies utensils should be points of the stability of these communities in the long run, and points of stability, this sometimes exhaust the points of great cross - matrix of payment, which is a magnet for society has been achieved and there is more than a magnet for the combined multiple identical (MPS) (multi - population symmetric games) through the employment of simulation method where generation vehicles heading y ?, x ? who represent the community first, second, as well as selecting values Al afteradp for the parameters (k_1, k_2, S_1, S_2), and assuming two functions Trabieitin f_2, f_1 To achieve this has been divided into the interval [ - 30.30] to eight spaces double points sample was assumed to points for summits local are ( - 15.15) and (15, - 15) and demonstrated that the stability, not necessarily to be points of great single, comprehensive, and it is this stability, the values of a great local to the matrix of pay rows and columns. This proved that the change in the field of the horizontal domain and vertical impact on the points of stability which could lead to changing the course of society, instead of heading towards the summit of Great overall edged heading toward points of great local flatter and Tvltaha, and demonstrated that the presence of the top super - local approach in the elevation of the summit of Great overall change the course of society. As in the application has reached the researcher to identify points of attraction between teaching in Iraq and the staff at the University of Baghdad and also for added degrees of years of service and responsibility to employees of the equipment of heavy engineering to find attractions to carry the burden of service for many years and done responsibly. And previous studies available to the researcher urged that the evolutionary model of the corresponding games has been limited to only together, so the focus was on mainstreaming the specimen to include the three communities have been reached to be through the theory of a simplified version of the graph (Graph Theory).
👁 مشاهدة
استعمال البرمجة الديناميكية والشبكات العصبية لايجاد الخزين الامثل لمخازن الشركة العامة للزيوت النباتية == The Use of Dynamic Programming And Neural Network To Find The Optimal Stockpiling Stores General Company For Vegetable Oils
اسم المؤلف:
افاق عبد الرهيب حسين محمود
اسم المشرف:
فاتن فاروق صالح البدري
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
المستخلص:
The purpose from this research to reduce the levels of inventories. in the problems of stockpiling the goals of finding the best level of stocks that are clear and accurate.We discussed this as it adopts a different input is first to focus on the style of dynamic programming in terms of properties and methods of calculations ,and method of solution using tables and the way down to find the optimal solution and for this style of algorithms. Second neural networks where this aspect to ensure a simplified study of the basic concepts of neural networks ,discussing the most important types of neural networks is the proliferation neural network and algorithms rear their own.As for the practical side, the data used are quarterly data for a period of three years (2006 - 2007 - 2008) As was initially resolved specimen using.the method of dynamic programming which were obtained on the size of inventories and return the accompanying.And in depended input dynamic programming and the results obtained by the application of dynamic programming style and application of neural networks based on the learning coefficients by trial and benefit from past experience has been obtained for less stocks possible. Down to the most important conclusions are : The decision dealt with the problem has many possibilities and where he can not resolve this problem by taking all the possibilities found style of dynamic programming to solve the problem. And the use of neural networks for stocks lower as possible
👁 مشاهدة
بعض الطرائق المعلمية واللامعلمية لتقدير دالة المعولية مع تطبيق عملي == Some of The Parametric Methods And Nonparametric To Estimate The Reliability Function With The Practical Application
اسم المؤلف:
بشير فيصل محمد حبيب السعدي
اسم المشرف:
انتصار عريبي فدعم الدوري
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
المستخلص:
The basic idea of the search started from the basis of operations research applications in the study and assess the reliability of producing machines that require decisions assigned to the foundations of modern scientific, And the evolution of technology led to the use of reliability index in the studies of design, operation and maintenance, and increased interest in the field of plants in general and chemical plants in particular.On this basis, has become a study and evaluate the reliability of machines and equipment as part of the effective jurisdiction of the Operations Research.Therefore, the constant interruptions in production machines gratings batteries in the General Company for the manufacture of liquid batteries (Babylon Lab - 1 - ) in Iraq, And the absence of estimating method dependents Parametric methods and Nonparametric ofthese machines led to a lack of knowledge stop hours of work these machines, What are the best methods that can be adopted in the estimate and therefore did not fulfill the above obligations the company in achieving energy production.So work requires an estimate of the dependents of these machines for the purpose of access to identify and stop engaging in hours and therefore maintenance programming and production of the above.Based on the foregoing, this research included mainly a comparison to estimate the reliability function in two approaches , first approach methods and parametric estimation methods, which included the following : 1 - Weibull Probability Plotting Method (WPPM).2 - Maximum Likelihood Method (MLM).3 - Method of Moments (MOM).4 - Rank Regression on Y Method ( RRYM ).5 - Rank Regression on X Method (RRXM).6 - Nonlinear Weighted Least Squares Using The Empirical Distribution Function Method(NWLSM).Either the second approach Nonparametric methods, which included the followingmethods : 1 - Empirical Methods (EM).2 - Product Limit Estimator Method(PLEM).3 - The Empirical Kaplan Meier Estimator Method(EKMEM).4 - The Empirical Weighted Kaplan - Meier Estimator Method(WEKM).5 - The Modified Kaplan - Meier Estimator Method(MKMM).6 - A weighted Estimation Method for reliability function(WMR).7 - Modified Method One(MMO).8 - Modified Method Two(MMT).The research aims to hold an estimate of the reliability function by Parametric methods for the distribution (Weibull with two parameters ? and ?), as well as estimation reliability function by nonparametric methods and compare the estimators of the reliability function by parametric and nonparametric methods to reach to the best parametric and nonparametric method, Through reliance on the index, the statistical integral mean square error (IMSE), And using the simulation and volumes of different samples as an estimate and is designed for dependents of machines that will allow the Department of gratings produce batteries out hours of operation of these machines and duration of stops and the application of parametric and nonparametric method and the best on the real data (failure times) Submitted by the pilot.The researcher has proposed two modified approach (MMO&MMT) in which Proposed modified weight to the empirical weighted kaplan - meier estimator has surpassed two approach, Which gives less integral mean square error (IMSE) of the integral mean square error to the nonparametric approach (The Empirical Weighted Kaplan - Meier estimator method (WEKM)). The researcher reached several conclusions, including that the best parametric method to estimate reliability function is a (Maximum Likelihood MLM) and for the best nonparametric method is a (Empirical Methods (EM)), and relying on standard statistical integral mean square error integral (IMSE).
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استعمال المحاكاة والبرمجة الخطية في تخطيط العمل الرقابي : دراسة تطبيقية في ديوان الرقابة المالية == THE USE OF SIMULATION AND LINEAR PROGRAMMING IN THE PLANNING OF AUDIT WORK (An Empirical Study in the Office of Financial Supervision
اسم المؤلف:
هديل مهدي كاظم الشكري
اسم المشرف:
ضوية سلمان حسن الجنابي
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
👁 مشاهدة
بناء نماذج للانتاج في شركة مصافي الوسط وتحليل تاثير التغيرات الانية باستعمال البرمجة المعلمية == Models Building Of Production in The Midland Refineries Company and analysis the impact of simultaneous changes By Using Parametric Programming
اسم المؤلف:
نصيف عبد اللطيف نصيف المهداوي
اسم المشرف:
محمد صادق عبد الرزاق الدوري
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
👁 مشاهدة
دراسة تطبيقية لمشاكل صفوف الانتظار للمركبات في بعض محطات التعبئة لمدينة بغداد == INDICATION STUDYING PROBLEM OF QUEUES OF CAR IN SOME THE FILLING STATION OF BAGHDAD CITY
اسم المؤلف:
سماهر طارق ابراهيم علي
اسم المشرف:
صباح منفي رضا الشمري
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
👁 مشاهدة
استخدام العمليات البواسونية غير المتجانسة مع صفوف الانتظار في قسم الطوارئ في مستشفى الطفل المركزي التعليمي في الاسكان == Using the Non - Homogenous Poisson Processes with Queuing Theory in the Emergency Department in Al - Tifel Teaching Central Hospital (Al - Iskan)
اسم المؤلف:
زينة معين محمد حسين
اسم المشرف:
خالد ضاري عباس الطائي
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
👁 مشاهدة
تخطيط ومراقبة مخزون العمليات الانتاجية لمضخة الماء باستخدام نظام MRP في الشركة العامة للصناعات الكهربائية في الوزيرية == Planning and inventory control of production processes to Water pump using the system MRP at the General Company for Electrical Industries in the Waziriya
اسم المؤلف:
خالد زغيتون جلوب الدليمي
اسم المشرف:
عبد الجبار خضر بخيت
الموضوع العام:
الادارة والاقتصاد
السنة:
2010
الموضوع الدقيق:
بحوث العمليات
الدرجة:
ماجستير
الجامعة:
جامعة بغداد
اللغة:
العربية
مكان الجامعة:
بغداد
الصفحات الاولى:
👁 مشاهدة
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