نتایج جستجو برای: polymer modifcation

تعداد نتایج: 93038  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1382

در این پایان نامه یک مدل برآورد هزینه های ادواری جهت برآورد هزینه عرشه های ساخته شده از ترکیبات ‏‎fiber reinforced polymer(frp)‎‏ ارائه شده است. این مدل تمامی هزینه های کارفرما، هزینه های بهره بردار و هزینه های طرف سوم را در جهت تخمین و برآورد هزینه های ادواری عرشه های ‏‎frp‎‏ در دوره عمر مفید پل در نظر می گیرد.

Journal: :journal of research in medical sciences 0
hourieh ansari ziba farajzadehgan ali hajigholami zamzam paknahad

background: osteoporosis is a serious public health. since the majority of bone mass occurs during adolescence, primary prevention  is important. probably mother’s participation in health education interventions leads to promote health behaviors in children. to assess a lifestyle modifcation intervention focused on mothers and students has an impact on osteoporosis preventive  behaviors in adol...

Journal: :به زراعی کشاورزی 0
خدیجه روستایی دانشجوی کارشناسی ارشد زراعت، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران محسن موحدی دهنوی استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران سید علی خادم دانشجوی سابق کارشناسی ارشد زراعت، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه زابل، زابل - ایران حمیدرضا اولیایی استادیار گروه علوم خاک، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران

to investigate effects of different super absorbent polymer and animal manure ratios on the quantitative and qualitative characteristics of soybean under drought stress, a split plots experiment was conducted based on randomized complete block design with three replications in marvdasht, iran in 2009. main factor included of irrigation with 50, 100 and 150 mm evaporation from pan class a and su...

2007
A. kULAWIk

The proper management of the human resources of an organization is one of the most important activities that must be undertaken by the organization in order to successfully function in a competitive market. It is necessary to carry out comprehensive processes aimed at obtaining the deepest possible knowledge of the employees, their professional potential, ambitions and development capabilities....

Journal: :The journal of contemporary dental practice 2013
Fabio Renato Manzolli Leite Gustavo Giacomelli Nascimento Elza Regina Manzolli Leite Amauri Antiquera Leite Josá Eduardo Cezar Sampaio

OBJECTIVE This study aims to compare the clot stabilization on root surfaces conditioned with citric acid and ethylenediamine-tetraacetic acid (EDTA). MATERIALS AND METHODS Scaled root samples (n = 100) were set in fve groups: group I-control group (saline solution); group II (24% EDTA); group III (25% citric acid); group IV (EDTA + citric acid); group V (citric acid + EDTA). Fifty samples we...

Journal: :علوم و تکنولوژی پلیمر 0
محمدعلی سمسارزاده آرزو دادخواه

kevlar is one of the fbers which is used in heavy industrial productions such as, shipping, military and weaving for reinforcement of composites. initial polymer of kevlar or poly(para-phenylene terephthalamide) is an oriented liquid crystal polymer. existence of aromatic group in the main chain leads to formation of rigid-rod molecules in the polymer, high strength and high modulus in it is fb...

Journal: :iranian journal of medical physics 0
asghar mesbahi medical physics department, faculty of medicine, tabriz university of medical sciences, tabriz, iran. radiation oncology department, imam hospital, tabriz, iran

introduction the purpose of the current study was to determine optical sensitivity of n-isopropyl acrylamide nipam and polyacrylamide gelatin and tetrakis hydroxymethyl phosphoniun chloride (pagat) polymer gels for different wavelength of visible light spectrum applied in optical computed tomography method. materials and methods nipam and pagat polymer gels with conventional formulations used f...

ژورنال: سنجش و ایمنی پرتو 2016

The object of this research is the investigation of carbon nanotube (CNT) distribution effect on electrical conductivity of polymer-CNT composite as dosimetry response of this system. Thus, electrical conductivity of this composite was simulated for aligned, homogenous, and agglomerated distributions in 2D, and 3D situations. The results of simulation were compared and validated by experimental...

Journal: :journal of rangeland science 2015
mahshid souri javad motamedi

knowledge of physiological and environmental factors is important for foragegrass production. festuca ovina is a grass species adapted to azerbaijan region climate,iran. this species is a valuable source for forage production and soil conservation.nitrogen (n), phosphorus (p) and potassium (k) are three most important plant nutrients.the aims of present study were to investigate the effects of ...

Journal: :علوم گیاهان زراعی ایران 0
سید علی خادم دانشکده کشاورزی دانشگاه زابل محمود رمرودی دانشکده کشاورزی دانشگاه زابل محمد گلوی دانشکده کشاورزی، دانشگاه زابل محمد جواد روستا مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس

to investigate the effects of drought stress and different combinations of animal manure with super absorbent polymer on yield and yield components of corn, a split plots design was conducted based on a randomized complete block design with 3 replications in fars agricultural research center in 2007. irrigation treatments were assigned as the main factor in three levels: 70, 105 and 140 mm evap...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید