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Article
Fuzzy controller Design of servo system

Author: Amjad Jalil Ahmidi
Journal: Al-Fatih journal مجلة الفتح ISSN: 87521996 Year: 2005 Volume: 1 Issue: 22 Pages: 210-219
Publisher: Diyala University جامعة ديالى

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Abstract

In the past few years, fuzzy-rule-based modeling has become an active research field because of its good merits in solving complex nonlinear system identification and control problems. A servo system (SS) is a class of a nonlinear position system that needs to be positioned accurately and fastly on a commanded position.The strategy followed in this paper in designing digital controller for such system is as follows:1. Building a neuro-model that represents the open loop servo system. This is accomplished by sufficiently collecting input-output data and used it off-line to build the neural network that will represent the plant for the second design stage.2. Design fuzzy controller through simulation to reach the required closed –loop behavior.The design technique is based on the adjustment of the scale factors, rule base and membership functions of the controller was accomplished by fine tuning and heuristic corrections linked to the knowledge of the process to be controlled. For the specified plant, there are certain parameters, which achieved a well-controlled response.

Keywords

fuzzy


Article
Completion of Fuzzy Normed Spaces

Author: Jehad R.Kider
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2011 Volume: 29 Issue: 10 Pages: 2004-2012
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this paper we recall the definition of fuzzy normed space. Much attention is paid to the concept of completeness a property which a fuzzy normed space may or may not have. We prove that for a fuzzy normed space there is always a competition. Also we study the relation between ordinary normed space and fuzzy normed space.


Article
Solution of Max – Min Composite Fuzzy Relational; Equation
الحل الاعظم والاصغر للمعادلة الضبابية

Author: Luma. N.M. Tawfiq
Journal: Al-Rafidain University College For Sciences مجلة كلية الرافدين الجامعة للعلوم ISSN: 16816870 Year: 2006 Issue: 20 Pages: 111-121
Publisher: Rafidain University College كلية الرافدين الجامعة

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Abstract

Let A be the set of solutions of a max – min product fuzzy relation equation on finite spaces. In this paper we use some algorithms to solve max – min product relation equation. يتضمن البحث تعريف نوع من المعادلات الضبابية و إعطاء خوارزمية الحل حيث تم التوصل الى طريقة جديدة للحصول على مجموعة الحلول لهذه المعادلات.

Keywords

Fuzzy --- الضبابية


Article
Filters Topology in light of Fuzzy Logic

Author: Bushra Hussien Aliwi
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2011 Volume: 18 Issue: 1-2 Pages: 368-375
Publisher: Babylon University جامعة بابل

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Abstract

This paper is a try to promote the principles of filters on a classical sets into a fuzzy sets under definitions of mathematical operations such intersections(disjunctions) and union(conjunction),…,etc .Some definitions on classical sets is traditionally true on the fuzzy sets , also some theorems and remarks were executed .Several examples occurred to demonstrate these views. Eventually this work is represent a restricts to the general view for fuzzy into some points(members) . Fuzzy filter base is an other term edited under several definitions supported by some theorems holds for the crisp sets under these principles .This research is one from a series of researches try to prove and then improve a vision to combine a view(s) of fuzzy logic for many directions for subjects from mathematics ,geometry and sciences computers and calculations ,this work one for topology هذا البحث هو محاولة للترويج عن مبادئ الفلاتر على المجموعات الكلاسيكية ( الاعتيادية) إلى المجموعات الضبابية تحت تعاريفِ العملياتِ الرياضيةِ مثل التقاطعات والإتحاد ,…، الخ. بعض التعاريف على المجموعات الكلاسيكية هي بشكل تقليدي(بصورة تقليدية) حقيقية على المجموعات الضبابية، كذلك نفذت بعض النظريات والملاحظات. وردت عِدّة أمثلة لعَرْض وجهات النظر هذه. في النهاية يمثل هذا العملِ تقييد لوجهة النظر العامّة للضبابيِة إلى بَعْض النقاط (عناصر). قاعدة المرشح الضبابية هي تعبير آخرُ حرّرَ تحت عِدّة تعاريف مدعومة من قبل بعْض النظريات التي تَحْملُ للمجموعاتِ الهشة( الاعتيادية) تحت هذه المبادئِ .هذا البحث واحد مِنْ سلسلة من البحوث تحاول إثبات و من ثم تحسين رؤية لجَمْع وجهة(وجهات) نظر المنطقِ الضبابيِ للعديد من الاتجاهات لمواضيع من الرياضيات ,الهندسة والعلوم الحاسبات و الحسابات، هذا العمل للهندسة اللاكمية.


Article
On Fuzzy Normed Space

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Abstract

This paper studies the concepts of fuzzy normed space and introduces definitions to the convergence fuzzy normed space, fuzzy continuity. It also proves some theorems in this subject.


Article
Fuzzy - α– 1/ 2 T space

Author: Alyaa Yousif Khudayir علياء يوسف
Journal: Journal of Kufa for Mathematics and Computer مجلة الكوفة للرياضيات والحاسوب ISSN: 11712076 Year: 2013 Volume: 1 Issue: 7 Pages: 28-32
Publisher: University of Kufa جامعة الكوفة

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Abstract

In this paper , we introduce the definitionof Fuzzy- α– 1/ 2 T space and its someproposition about this subject


Article
Solving fuzzy fractional linear programming problems by ranking function methods

Author: Rasha Jalal Mitlif
Journal: Journal of College of Education مجلة كلية التربية ISSN: 18120380 Year: 2016 Issue: 1 Pages: 93-108
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

In this paper we present solving fuzzy fractional linear programming problems by ranking function methods in which both the right- hand side and objective function coefficients are fuzzy numbers , numerical examples are solved to illustrate the proposed methods . في هذا البحث سنقدم حل مسائل البرمجة الكسرية الخطية الضبابية بواسطة طرق دالة تخفيض الرتبة التي تكون فيها كل من الجهة اليمنى ومعاملات دالة الهدف من الأعداد الضبابية ، حلت الأمثلة العددية لتوضيح الطرق المقترحة.


Article
ON FUZZY-⨁-S-MODULES
حول ضبابية الجمع المباشر للمودول المستكمل

Author: Majid M. Abed ماجد محمد عبد
Journal: Journal of university of Anbar for Pure science مجلة جامعة الانبار للعلوم الصرفة ISSN: 89411991 Year: 2017 Volume: 11 Issue: 2 Pages: 57-60
Publisher: University of Anbar جامعة الانبار

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Abstract

A module M is a ⨁-Supplemented if M=⨁Ni such that Ni is a direct summand of M. In this paper we introduce the notion of Fuzzy ⨁-Supplemented Module (Fuz-⨁-S-Mod) as a generalization of ⨁-supplemented module. We investigate several characterizations and properties of this concept. Moreover we investigated several relationships among Fuz-⨁-S-Mod and other Fuzzy concepts such as fuzzy D1-module (Fuz-D1-module), Fuzzy Lifting Module (Fuz-L-mod) and Amply Fuzzy Supplemented module (A-Fuz-S-mod) are studied. تم في هذا البحث اجراء عملية تعميم لمودول الجمع المباشر المستكمل. قمنا بدراسة ضبابية مودول الجمع المباشر المستكمل. كذلك تم دراسة بعض خواص هذا التعميم وعلاقته مع مودولات اخرى مثل المودول الضبابي شبه البسيط, مودول الرفع الضبابي, المودول الجزئي الضبابي و مودول الجمع المباشر المستكمل الضبابي.


Article
Proposed Method for Optimizing Fuzzy linear programming Problems by using Two-Phase Technique

Authors: Sabiha Fathil Jawad --- Zaki .S. Towfik
Journal: Iraqi Journal for Electrical And Electronic Engineering المجلة العراقية للهندسة الكهربائية والالكترونية ISSN: 18145892 Year: 2010 Volume: 6 Issue: 2 Pages: 89-96
Publisher: Basrah University جامعة البصرة

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Abstract

Fuzzy linear programming (FLP )is an application of fuzzy set theoryin linear decision making problemsand most of these problems arerelated to linear programmingcontains fuzzy constrains or crispobjectives function or contains crispconstrains with fuzzy objectivesfunction, which called fuzzy linearprogramming (FLP) with tripletfuzzy numbers consist a hybridfuzzy. The crisp constrains used inthe problems of types (= or ≥) with aproposed optimization fuzzyobjectives and fuzzy constrains. Inthis paper proposed method forsolving fuzzy linear programmingproblem by using Two-phasetechnique to solve the problem andto determine the optima crispobjectives.


Article
Fuzzy α-Proper Mapping

Author: Habeeb Kareem Abdullah
Journal: Journal of College of Education for Pure Science مجلة كلية التربية للعلوم الصرفه ISSN: 20736592 Year: 2014 Volume: 4 Issue: 1 Pages: 1-13
Publisher: Thi-Qar University جامعة ذي قار

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Abstract

AbstractThe purpose of this paper is introduce the concept of fuzzy α-proper mapping in fuzzy topological spaces. We give some characterization of fuzzy α-compact mapping and fuzzy α-coercive mapping. We study the relation of fuzzy proper mapping, fuzzy α-compact mapping and fuzzy α-coercive mapping and we obtained several properties. الهدف من هذا البحث تقديم مفهوم تطبيق α السديد في الفضاءات التبولوجية الضبابية. نحن اعطينا بعض مميزات تطبيق α المرصوص الضبابي وتطبيق α القاسي الضبابي. و درسنا العلاقة بين التطبيق السديد الضبابي و التطبيق α المرصوص الضبابي والتطبيق α القاسي الضبابي وحصلنا على عدة خصائص.

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