نتایج جستجو برای: multiple response surface

تعداد نتایج: 2219804  

Introduction: Structural Equation Modeling (SEM) is a very general statistical modeling technique, which is widely used in the behavioral sciences. It can be viewed as a combination of path analysis, regression and factor analysis.  One of the prominent features of this method is the ability to compute direct, indirect and total effects, as well as latent variable modeling. Methods: This sy...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده آموزشهای الکترونیکی 1392

شناسایی و مدلسازی یک لوپ صنعتی واقعی در این پروژه انجام شده است.ابتدا شناسایی به روش arx انجام گردیده که به علت عدم مطلوب بودن نتایج با استفاده از روش multiple model به نواحی قطعه ای خطی تبدیل گردیده و برای هر ناحیه شناسایی به روش arx انجام شده است.پس از ترکیب نواحی،برای انتخاب اینکه در هر زمان کدام ناحیه خروجی مورد نظر راتولیدکند.از توابع عضویت فازی استفاده شده است.برای طراحی کنترلر ابتدا به و...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2008
M Pradas A Hernández-Machado M A Rodríguez

Recent experiments on imbibition in columnar geometries show interfacial fluctuations whose dynamic scaling is not compatible with the usual nonlocal model governed by surface tension that results from a macroscopic description. To explore this discrepancy, we exhaustively analyze numerical integrations of a phase-field model with dichotomic columnar disorder. We find that two distinct behavior...

Journal: :Frontiers in Marine Science 2023

Understanding the difficult to predict interactive effects of anthropogenic stressors is recognized as one major challenges facing environmental scientists and ecosystem managers. Despite burgeoning research, predicting stressor interactions still difficult, in part because same two can interact, or not, depending on their intensities. While laboratory experiments have provided useful insights ...

Journal: :international journal of nano dimension 0
n. khalighyan department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran. n. hooshmand department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran. n. razzaghi-asl medicinal and natural products chemistry research center, shiraz university of medical sciences, shiraz, iran. k. zare chemistry department, shahid beheshti university, tehran, evin, iran. r. miri medicinal and natural products chemistry research center, shiraz university of medical sciences, shiraz, iran.

in the present study, fe3o4 super paramagnetic nanoparticles were synthesized via co-precipitation of fe3+ and fe2+ chloride salts in the presence of ammonia solution. the product was characterized by fourier transform infrared spectroscopy (ft-ir), transmission electron microscopy (tem), and zeta–potential particle size distributing methods. the synthetic procedure of nano iron oxides were opt...

Application of Response Surface Methodology for Modeling the Color Strength of Natural Hair Colorant

Journal: :Journal of the Experimental Analysis of Behavior 1974

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