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Article
ON GENERALIZED ALMOST CONTRA CONTINUOUS FUNCTIONS AND SOME RELATIONS WITH ANOTHER KINDS OF CONTINUITY ON INTUITIONISTIC TOPOLOGICAL SPACES

Authors: Yunis J. Yaseen یونس جهاد یاسین --- Ali M. Jasim علي محمد جاسم
Journal: Journal of university of Anbar for Pure science مجلة جامعة الانبار للعلوم الصرفة ISSN: ISSN: 19918941 Year: 2010 Volume: 4 Issue: 1 Pages: 72-83
Publisher: University of Anbar جامعة الانبار

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Abstract

We study in this paper the concept of almost contra continuous functions and generalizedthem in intuitionistic topological spaces and we studied the relations of each kind of these function byproperties, examples and a diagram to summarize these functions. Also we study some relationbetween almost contra continuous function and some continuous functions

الخلاصةبكل انواعها (almost contra continuous) سندرس في هذا البحث مفه وم الدوال المستمرة المعاكسة تقریباًوتعمیمها بین الفضاءات التبولوجیة الحدسیة وكذلك (almost contra semi continuous, almost contra g-continuous,...)سندرس علاقة هذه الدوال مع بعضها عن طریق بعض المبرهنات والأمثلة وتوضیحها بمخطط سمي وكذلك سندرس علاقة هذه الدوالمع أنواع أخرى من الدوال المستمرة منها الدوال المستمرة المعاكسة وغیرها من الدوال المستمرة


Article
Sound Signal Analysis Using FIR Filters for Musical Fountain Operation

Authors: Ali M. Jasim علي محمد جاسم --- Jawad R. Mahmood جواد راضي محمود --- Ramzy S. Ali رمزي سالم علي
Journal: Basrah Journal for Engineering Science مجلة البصرة للعلوم الهندسية ISSN: Print: 18146120; Online: 23118385 Year: 2016 Volume: 16 Issue: 2 Pages: 21-28
Publisher: Basrah University جامعة البصرة

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Abstract

In digital signal processing (DSP), FIR digital filter isvery important device to deal with particular frequencies of acertain signal to be appropriate for some applications such ascommunications, sound equalizers, etc. In this paper, FIRfilters are adapted to decompose the original sound signal intofour signals. Each one is created by one FIR filter and eachfilter represents a narrow band of frequencies. The filteroutput is used to drive a certain variable speed drive (VSD) tocontrol the speed of a water pump and light intensity of acolored lamp. This filter output signal is applied to the analogcontrol voltage terminals of the VSD unit to control thefrequency and magnitude of the voltage supplied to the lampand pump. Thus, the heads of the water jets and the lightintensity is controlled according to the analog control signalswhich are created by the FIR filters (The VSD is used to mapthe filter output into light intensity and water head bycontrolling the supplied voltage of them). The goal of this studyis to design and simulate four sound harmonics bandsproduced by FIR filters to drive four VSDs which aresimulated using V/F ratio constant method for musicalfountain operation.

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