نتایج جستجو برای: response surface model

تعداد نتایج: 3413728  

Journal: :jundishapur journal of microbiology 0
seyed bahman momen department of biochemistry, faculty of biological sciences, tarbiat-modares university, tehran, ir iran seyed davar siadat department of bacteriology, institute pasteur of iran, tehran, ir iran neda akbari department of microbiology, faculty of basic sciences, arak branch, islamic azad university, arak, ir iran bijan ranjbar department of biochemistry, faculty of biological sciences, tarbiat-modares university, tehran, ir iran khosro khajeh department of biochemistry, faculty of biological sciences, tarbiat-modares university, tehran, ir iran; department of biochemistry, faculty of biological sciences, tarbiat-modares university, tehran, ir iran. tel: +98-2182884717, fax: +98-2182884718

conclusions we found ccd and rsm very effective in optimizing hib culture conditions, and hib biomass production was greatly influenced by ph and incubation temperature. therefore, optimization of the growth factors to maximize hib production can lead to 1) an increase in bacterial biomass and prp productions, 2) lower vaccine prices, 3) vaccination of more susceptible populations, and 4) lower...

S Rahmanian Sh Hosseini Hashemi,

The impetus of this study is to investigate the chaotic behavior of a size-dependent nano-beam with double-sided electrostatic actuation, incorporating surface energy effect and intermolecular interactions. The geometrically nonlinear beam model is based on Euler-Bernoulli beam assumption. The influence of the small-scale and the surface energy effect are modeled by implementing the consistent ...

Amiri, M., Seifoori, M.,

The efficient planning of each system requires an understanding of the true nature of the system. Regression models also represent a system that its input variables, the role of the system input, its variables coefficients, the role of the system process, and its response variables, play the role of the system output. Therefore, for exact regression modeling and efficient planning, it's essenti...

A. M. Fathollahi-Fard K. S. Abdallah M. Hajiaghaei-Keshteli

Recent papers in the concept of Supply Chain Network Design (SCND) have seen a rapid development in applying the stochastic models to get closer to real-world applications. Regaring the special characteristics of each product, the stracture of SCND varies. In tire industry, the recycling and remanufacturing of scraped tires lead to design a closed-loop supply chain. This paper proposes a two-st...

ahmad sadeghi, javad sadeghi mohammad Saidi mehrabad

This paper develops a single-vendor single-retailer supply chain for multi-product. The proposed model is based on Vendor Managed Inventory (VMI) approach and vendor uses the retailer's data for better decision making. Number of orders and available capital are the constraints of the model. In this system, shortages are backordered; therefore, the vendor’s warehouse capacity is another limitati...

Journal: :international journal of nano dimension 0
j. e. jam composite materials and technology center, mut, tehran, iran. a. t. samaei composite materials and technology center, mut, tehran, iran.

in this paper, the modified euler-bernoulli beam model is presented to examine the influence of surface elasticity and residual surface tension on the critical force of axial buckling of nanotubes in the presence of rotary inertia. an explicit solution is derived for the buckling loads of microscaled euler beams considering surface effects. the size-dependent buckling behavior of the nanotube d...

Journal: :journal of optimization in industrial engineering 2011
javad sadeghi ahmad sadeghi mohammad saidi mehrabad

this paper develops a single-vendor single-retailer supply chain for multi-product. the proposed model is based on vendor managed inventory (vmi) approach and vendor uses the retailer's data for better decision making. number of orders and available capital are the constraints of the model. in this system, shortages are backordered; therefore, the vendor’s warehouse capacity is another limitati...

Journal: :iranian journal of materials science and engineering 0
n. radhika amrita school of engineering, coimbatore,india r. raghu department of metallurgical engineering, psg college of technology, coimbatore-641004, india

functionally graded aluminium/zirconia metal matrix composite was fabricated using stir casting technique followed by horizontal centrifugal casting process and a hollow cylindrical functionally graded composite (150 x 150 x 16 mm) was obtained with centrifuging speed of 1200 rpm. the microstructural evaluation and hardness test was carried out on the outer and inner surface of the functionally...

Journal: :iranian journal of pharmaceutical research 0
qiang li heilongjiang university li-jian sun heilongjiang university xian-feng gong heilongjiang university yang wang heilongjiang university xue-ling zhao heilongjiang university

angelica essential oil (ao), a major pharmacologically active component of angelica sinensis (oliv.) diels, possesses hemogenesis, analgesic activities and sedative effect. the application of ao in pharmaceutical systems had been limited because of its low oxidative stability. the ao-loaded gelatin-chitosan microcapsules with prevention from oxidation were developed and optimized using response...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

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