نتایج جستجو برای: simulation processes from down

تعداد نتایج: 6302384  

Journal: :Proceedings of the National Academy of Sciences 2011

Journal: :journal of chemical and petroleum engineering 2010
amir sheikhi رحمت ستوده قره باغ mohammad hosein labbaf mojghan abbasi

nowadays, membrane processes are widely used for high purity nitrogen production. separation of air by membranes is a flexible process in which the investment and operational costs are lower than for example adsorption or cryogenic processes. such processes are based on relative permeability of air components which are transported by the pressure difference between two sides of the membrane. ma...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1389

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

Journal: :American Behavioral Scientist 1999

Journal: :RELIEVE - Revista Electrónica de Investigación y Evaluación Educativa 2013

Journal: :Progress of Theoretical Physics 1982

In this paper, sliding mode control (SMC) for a bidirectional buck/boost DC-DC converter (BDC) with constant frequency in continuous conduction mode (CCM) is discussed. Since the converter is a high-order converter, the reduced-order sliding manifold is exploited. Because of right-half-plan zero (RHPZ) in the converter’s duty ratio to output voltage transfer function, sliding mode current...

A. Beheshti, and A. Sadeghi Dolatabadi, M. Jamshidian, M. Salimi,

The mechanical behavior of cold rolled sheets is significantly related to residual stresses that arise from bending and unbending processes. Measurement of residual stresses is mostly limited to surface measurement techniques. Experimental determination of stress variation through thickness is difficult and time-consuming. This paper presents a closed form solution for residual stresses, in whi...

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