نتایج جستجو برای: boxbehnken experimental design

تعداد نتایج: 1575195  

Journal: :journal of mining and environment 2012
a igder ali akbar rahmani ali fazlavi mohammad hossein ahmadi mohammad hossein ahmadi azqhandi

the main objective of the present study is to investigate the feasibility of using carboxymethyl chitosan magnetic nanoparticles (ccmn) for the adsorption of cd2+. the study also reports important parameters, which affect the adsorption process, i.e., ph, adsorbent dose, contact time and concentration of cd2+, using box-behnken designs. firstly, functional carboxymethyl chitosan magnetic nanopa...

Journal: :caspian journal of chemistry 2013
seyed naser azizi abdolrauf samadi-maybodi mohammad hossein fatemi neda asemi

perlite or pearl stone is a natural glass which has formed by rapid cooling of viscous lava or magma. perlite is mainly composed of silica, aluminum, potassium and sodium. in this experiment, perlite was used as a low-cost source of si and al to synthesis of sodalite zeolite using the alkaline hydrothermal treatment. a statistical taguchi design of experiments was employed to evaluate the effec...

Journal: :hepatitis monthly 0
mehrzad banihashemi pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran milad mohkam pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran; department of pharmaceutical biotechnology, school of pharmacy, shiraz university of medical sciences, shiraz, ir iran azam safari pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran navid nezafat pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran manica negahdaripour pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran fatemeh mohammadi pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, ir iran; department of pharmaceutical biotechnology, school of pharmacy, shiraz university of medical sciences, shiraz, ir iran

background a potential treatment for healing hepatic tissue is delivering isolated hepatic cells to the site of injury to promote hepatic cells formation. in this technology, providing an appropriate injectable system for delivery of hepatic cells is an important issue. in this regard, fibrin scaffolds were designed with many advantages over other scaffolds like cell delivery vehicles for biode...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract listening is a key and main tool in second language skill and its development is of prime concern to teachers and learners. furthermore, the application of technology in language classrooms has become more commonplace in the last fifty years. computer and the internet have made foreign language materials easy to access and use. so, the present study is an attempt to examine the effec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

the purpose of this thesis was to investigate how differently metacognitive, cognitive, and social/affective strategies affect l2 learners’ reading comprehension. to this end, the study employed a quasi-experimental design with a placement test as a proficiency test to find the homogeneity of groups. three classes were randomly selected as the experimental groups (n =90), and each class was tau...

1995
Kathryn Chaloner Isabella Verdinelli

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2009
Gregory Wheeler Jon Williamson Prasanta S. Bandyopadhyay Malcolm Forster

In this chapter we draw connections between two seemingly opposing approaches to probability and statistics: evidential probability on the one hand and objective Bayesian epistemology on the other.

2004
MATTIAS VILLANI

The degree of empirical support of a priori plausible structures on the cointegration vectors has a central role in the analysis of cointegration. Historically, this question has been answered by classical testing of over-identifying restrictions on the cointegration space. This paper introduces an exact finite sample Bayesian procedure to calculate the posterior probability of restrictions on ...

2012
EDILBERTO CEPEDA-CUERVO

In this paper joint mean and variance beta regression models are proposed. The proposed models are fitted applying Bayesian methodology and assuming normal prior distribution for the regression parameters. An analysis of structural and real data is included, assuming the proposed model, together with a comparison of the result obtained assuming joint modeling of the mean and precision parameters.

2004
Allan McRobie

A key step in “Designing for the Consequences of Hazard” is choosing which hazards to design for. This paper argues that the Bayesian perspective is the rational and prudent framework.

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