نتایج جستجو برای: three spring

تعداد نتایج: 1323342  

2009
Qinglin Wu Jong N. Lee Zhiyong Cai Dingguo Zhou

Creep performance of zinc borate-treated strandboard from southern pine (Pinus taeda L.) and red oak (Quercus falcata) was investigated at 25°C temperature and 65% relative humidity. It was shown that the borate treatment had some signifi cant effect on creep defl ection of the test panels, and the effect varied with wood species. There was no signifi cant effect of creep loading on residual be...

2010
P. Cayrol

In the framework of Geoland, Infoterra France has mapped with MERIS the distribution of annual crops surfaces in Belgium, Poland and Russia (Rostov oblast). The maps provided are the acreages of main groups of crops per administrative or agricultural circumscriptions unit. The groups are winter, spring and root crops (sugar beet, potatoes). The method for mapping exploits the MERIS capability t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و فرهنگ - دانشکده مهندسی عمران 1392

هدف از این مطالعه، شناسایی عوامل حائز اهمیت در رفتار لرزه ای پل های قوسی فولادی با عرشه بالاگذر، تحت تاثیر آثار مولفه قائم برای حیطه ای از تغییرات پارامترها و حالاتی ایده آل سازی شده از ویژگیهای توپوگرافیک دره های زیر پل با فرض خاک نوع i (مطابق آیین نامه 2800) می باشد. همچنین سعی شده است با تحلیل دینامیکی دو بعدی ، ارزیابی رفتار لرزه ای پل قوسی خرپایی ومقایسه نتایج با در نظر گرفتن نسبت خیز به د...

Journal: :تحقیقات موتور 0
محمد رضا قاسمی m.r. ghassemi یوسف حجت y. hojjat

today there are different vibration isolators used in industries according to the weight and excitation frequency of the machines which have vibration. one of them is air spring which is in two types: convoluted air spring and membrane air spring. convoluted air springs are used to control vibrations in low frequency (usually lower than 10 hz) and the membrane ones are used in high frequency (u...

رحیم ملک, مهدی, سبزعلیان, محمدرضا, نیکبخت, علی, وفادار, زینب,

Myrtle ) Myrtus communis L.) is a diploid plant belongs to the family of Myrtaceae and is considered as one of the important medicinal and ornamental plant. The present was performed to investigate the effect of salinity stress on morphological and physiological traits in myrtle. This study was conducted in an experiment of  split plot in time according to a randomized complete block desig...

شریف, مهدی, ضیاءپور , سید پیمان, عسگریان , فاطمه, عمویی, افسانه, عنایتی, احمد علی , فاضلی دینان, محمود ,

Background and purpose: Hard ticks are the most important vectors of some diseases including babesios, theileriosis, and Crimean–Congo hemorrhagic fever that affect both animals and humans. Among the members of this family, Rhipicephalus bursa is one of the most important vectors of babesios and theileriosis in Iran and around the world. Therefore, detection of abundance and seasonal dynamics...

Journal: :archives of razi institute 0
vahid noaman department of veterinary research, isfahan agricultural and natural resources research and education center, areeo, iran mohammad abdigoudarzi department of parasitology research, razi vaccine and serum research institute, areeo, iran abdol reza nabinejad department of veterinary research, isfahan agricultural and natural resources research and education center, areeo, iran

the objectives of this study were to determine the diversity, seasonal dynamics and abundance of ticks infesting cattle in isfahan zone, iran. the study was conducted in three traditional cattle farms. no acaricides had been applied to cattle at the selected farms. adult ticks were collected twice per month from different parts of the cattle's body. environmental data, including relative h...

Journal: :چغندرقند 0
محمدعلی به آئین مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی فارس غلامرضا اشرف منصوری مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی فارس فرحناز حمدی کارشناس ارشد مؤسسه تحقیقات چغندر قند

the aim of this study was to investigate the effect of tillage methods to obtain suitable seedbed for monogerm seed. therefore, a split plot experiment based on a randomized complete block design (rcbd) with three replicatians was conducted at darab station of fars province. the main plot was seedbed prepration at two levels including fall and spring season. subplot included 1) moldboard plow a...

Background: We intend to study the inhibitory effect of sulfur compound in Ramsar hot spring mineral on tumor-genesis ability of high natural background radiation. Objective: The radioprotective effect of sulfur compounds was previously shown on radiation-induced chromosomal aberration, micronuclei in mouse bone marrow cells and human peripheral lymphocyte. Ramsar is known for having the highe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1375

chapter two presents three m-admissible function algebras ab, bd, and sl, to construct the universal abelian, band, and semilattice compactifications, respectively. the main results are (11.3), (12.3), and (12.4). some inclusion relationships between these function algebras and the other well-known ones, presented in section 8, are made via the devico of compactifications. chpter three is about...

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