نتایج جستجو برای: control method

تعداد نتایج: 2790095  

پایان نامه :0 1374

the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...

پایان نامه :0 1374

the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...

پایان نامه :0 1374

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

abstract although music possesses some kind of power and using it has been welcome by many students in language classrooms, it seems that they take a non-serious image of the lesson while listening to songs and they may think that it is a matter of fun. the main objective of the present study was to investigate whether learning a foreign language through musical texts (songs) can have an impac...

Journal: :iranian journal of mathematical chemistry 0
h. r. tabrizidooz department of applied mathematics, faculty of mathematical sciences, university of kashan m. pourbabaee department of applied mathematics, faculty of mathematical sciences, university of kashan m. hedayati department of applied mathematics, faculty of mathematical sciences, university of kashan

in the present paper, we develop a modified pseudospectral scheme for solving an optimal control problem which is governed by a switched dynamical system. many real-world processes such as chemical processes, automotive systems and manufacturing processes can be modeled as such systems. for this purpose, we replace the problem with an alternative optimal control problem in which the switching t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم ریاضی 1388

چکیده ندارد.

Journal: :computational methods for differential equations 0
yousef edrisi tabriz payame noor university aghileh heydari ‎payame noor university

‎in this paper we introduce a numerical approach that solves optimal control problems (ocps)‎‎using collocation methods‎. ‎this approach is based upon b-spline functions‎.‎the derivative matrices between any two families of b-spline functions are utilized to‎‎reduce the solution of ocps to the solution of nonlinear optimization problems‎.‎numerical experiments confirm our theoretical findings‎.

Journal: :نظریه تقریب و کاربرد های آن 0
m. paripour department of mathematics, islamic azad university, hamedan branch , hamedan, 6518118413, iran. j. saeidian department of mathematics and computer science, tarbiat moallem university, 599 taleghani avenue, tehran 1561836314, iran.

omotopy analysis method (ham) is a promising method for handling func-tional equations. recent publications proved the e ectiveness of ham in solvingwide variety of problems in di erent elds. ham has a unique property whichmakes it superior to other analytic methods, this property is its ability to con-trol the convergence region of the solution series. in this work, we clari ed theadvantages ...

Journal: :بین المللی مهندسی صنایع و مدیریت تولید 0
amir afshin fatahi assistant professor of industrial eng., islamic azad university, parand branch, iran rassoul noorossana professor of industrial eng., iran university of science and technology, iran pershang dokouhaki instructor of industrial eng., islamic azad university, parand branch, iran massoud babkhani assistant professor of industrial eng., iran university of science and technology, iran

there are miscellaneous quality characteristics in healthcare which are interested to be monitored. however, monitoring each characteristic needs a special statistical method. there are some characteristics with very small incidence rates that it’s usually considered not to be necessary to monitoring them, since their incidence rates are so small that p and np charts are not able to monitor the...

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