نتایج جستجو برای: the pan

تعداد نتایج: 16057307  

Journal: :مطالعات اوراسیای مرکزی 0

this research seeks to study the impact of pan-turkist ideology on central asia. the collapse of the soviet :union: and independence of the central asian and caucasian states once again revitalized hopes among the pan-turkist theoreticians and strategists who were hopeless about the implementation of their project of establishing a turkic empire in the southern parts of the soviet :union:. cons...

2005
COLIN A. CHAPMAN RICHARD W. WRANGHAM

We contrast the range use patterns of male and female chimpanzees (Pan troglodytes) based on repeated sightings over three years of 19 individuals in the Kanyawara community of Kibale Forest Reserve, Uganda. Depending on how home range size was calculated, male chimpanzees used an area that was 1.5 to 2 times greater than that of females. There was no difference between the sexes in whether the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1391

در این مطالعه با استفاده از سه نوع کوپلیمر پلی اکریلونیتریل (pan) حاوی کومونومرهای مختلف، نانوالیاف pan به روش الکتروریسی تولید شد. قطر متوسط نانوالیاف pan در محدوده nm560- 150 بود که قطر نانوالیاف با افزایش غلظت pan در محلول pan/dmf افزایش یافت. ساختار فیزیکی و شیمیایی به ترتیب به وسیله طیف پراش اشعه ایکس (xrd)، طیف سنجی مادون قرمز تبدیل فوریه (ft-ir) بررسی شد. علاوه بر این رفتار حرارتی نانوال...

Afshin Maleki, Hiua Daraei, Mehrdad Khamforosh Mohammad Amin Pordel Reza Rezaee, Saeed Dehestani,

This study explored the fabrication, characterization, and microscopic imaging of highly porous electrospun nanofibers based on pure and Fe2O3 nanoparticle modified polyacrylonitrile (PAN) fibers. The desired electrospinning mixture comprising polymer and nanoparticles in dimethyleformamide, was prepared. During electrospinning, the precursor solution was injected using a ...

H. Aghaiel K. Zare M. Aghaie M. Banimahd Keivani R. Ansari

Practical applications of conducting polymers such as polyaniline as membranes are particulary limitedbecause of their poor mechanical properties. However by mixing polyaniline with some conventional insulatingpolymers such as nylon and preparation composite films through solvent casting or blending, it seems to be asuitable way in order to increase the mechanical properties of the conducting p...

Journal: :journal of craniomaxillofacial research 0
reza sharifi department of oral and maxillofacial surgery, dental school, and craniomaxillofacial research center, shariati hospital, tehran university of medical sciences, tehran, iran amirsalar sayedyahossein craniomaxillofacial research center, shariati hospital, tehran university of medical sciences, tehran, iran

polyarteritis nodosa (pan) is a necrotizing vasculitis characterized by damage to blood vessels and subsequent ischemic tissue changes in various organs. the case presented here is a 51-year-old man with pan, who has recently developed osteomyelitis of mandible. to the best of our knowledge, this is the first report of jaw osteomyelitis in patients with pan.

Journal: :international journal of nano dimension 0
v. zargar separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. energy research institute, university of kashan, ghotb-e-ravandi ave., kashan, iran. m. asghari separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. energy research institute, university of kashan, ghotb-e-ravandi ave., kashan, iran. b. rajaei separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. energy research institute, university of kashan, ghotb-e-ravandi ave., kashan, iran.

polyacrylonitril (pan)-supported chitosan (cs) nanocomposite membranes were prepared by cross-linking the cs with 3-aminopropyl-triethoxysilane (apteos) via sol-gel method. pervaporative performances of the cs-sio2/pan membrane for dehydration of aqueous alcohol solutions were investigated. from sem cross-sectional images of the membrane, the spongy pores and the finger-like pores were found in...

Polyacrylonitrile (PAN) membranes with nano-porous surface and high hydrophilicity were fabricated by addition of polyoxyethylene (40) nonylphenyl ether (IGEPAL) as an additive in the casting solution. The membranes were prepared from PAN/IGEPAL/1-Methyl-2-pyrrolidone (NMP) via phase inversion induced by immersion precipitation technique. Pure water was used as coagulation medium. The effects o...

lak, shahram, matrudi, mohamad,

In order to effect of mycorrhiza fungi on the quantitative and qualitative traits of cowpea in different irrigation intervals, this research was carried out in 2017 in Khorramshahr as split plot based on randomized complete block design with four replications. The treatments consisted of different irrigation intervals at four levels of 55, 80, 105 and 130 mm evaporation from class A evaporation...

Journal: :journal of agricultural science and technology 2012
a. ertek i. erdal h. i. yilmaz u. senyigit

this study was conducted to determine the effects of different water and nitrogen application levels on drip-irrigated tomato plants. the amount of water usage was based upon the pan evaporation from a screened (class “a”) evaporation pan. the treatments consisted of two irrigation intervals (i1= 5 days and i2= 10 days), three plant-pan coefficients (kcp1= 0.50; kcp2= 0.75 and kcp3= 1.00) and t...

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