نتایج جستجو برای: 60 and mn

تعداد نتایج: 16877474  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...

Journal: :Bioresource technology 2002
N R Curvetto D Figlas R Devalis S Delmastro

The mycelial growth rates in lineal growth assay, yield, and production rate of five Pleurotus ostreatus strains were evaluated in response to different levels of Mn(II) and/or NH4+ in a substrate containing sunflower seed hulls as a main energy and nutritional component. Each strain showed different basal values for mycelial growth rate and biological efficiency on sunflower seed-hull substrat...

2004
Der-Jang Liaw Ching-Cheng Huang Chih-Hung Tsai

A novel method for preparing α-norbornene methylene polystyrene macromonomer (NBMPSt) is reported. NBMPSt macromonomer ( Mn = 1.60 × 10 and PDI = 1.26) had glass transition temperature (Tg) of 107 C for polystyrene segment. Since the homopolymerization of NBMPSt macromonomer with number average molecular weight ( Mn ) 1.60 ×10 could not be carried out by ring-opening metathesis polymerization (...

1998
T. Hathaway N. S. Dalal

The Mn cluster complex [Mn 12 O 12 (CH 3 COO) 16 (H 2 O) 4 ] ) 2CH 3 COOH ) 4H 2 O exhibits macroscopic quantum tunneling of magnetic moment, as evidenced by pronounced steps in the magnetization curve at low temperatures. The magnetization of Mn 12 acetate single crystals, and the slow relaxation of the magnetic moment, was measured in the temperature range from 3 K down to 60 mK with a very s...

Journal: :به زراعی کشاورزی 0
معرفت مصطفوی راد استادیار، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان گیلان، رشت، ایران اسماعیل جدیدی دانشجوی کارشناسی ارشد، گروه علوم و تکنولوژی تولید بذر، دانشکدة کشاورزی، دانشگاه آزاد اسلامی واحد آشتیان، آشتیان، ایران تقی بابایی مربی پژوهشی، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان مرکزی، اراک، ایران.

in order to evaluate the seed yield and qualitative traits and oil in some winter rapeseed (brassica napus l.) varieties as affected by micronutrient elements, this experiment was performed during 2011 - 2012 cropping seasons as split plot arrangement in randomized complete block design with three replications, in arak, iran. micronutrient fertilizers including of zero as check, fe, zn, mn, fe ...

غفاری نژاد شهر بابکی, سیدعلی , کریمیان, نجف علی ,

Twenty-two surface soil samples (0-20 cm) from Fars province were extracted by five extractants (i.e., DTPA, 1.5 M NH4H2PO4, 0.1 NH3PO4, 0.05 MNa2EDTA, and 1% Na2EDTA) and used in a 7-week greenhouse experiment which was a 22 × 3 factorial with 22 soils (clay 16-63% pH 7.8-8.2 electrical conductivity 0.32-1.78 dS m-1 calcium carbonate equivalent 28-63% organic matter 1.1-4.9% cation exchange ca...

2017
J. A. Barrow D. J. Sordelet Matthew F. Besser Cynthia J. Jenks Patricia A. Thiel E. F. Rexer S. J. Riley

An icosahedral Al−Pd−Mn quasicrystal sample is laser vaporized to form metal clusters by gas aggregation. The clusters are subsequently laser ionized and mass analyzed in a time-of-flight mass spectrometer. The mass spectra show cluster compositions which are qualitatively similar to that of the sample. This is consistent with a kinetically controlled cluster growth process. Cluster thermodynam...

زرین کوب, محمد حسین, برقی, بهناز, کلا گری, علی اصغر,

 Kamar Tallar mineralization zone in Gazik area is engulfed within ophiolitic melange in Sistan suture zone in east of Iran .The Mn- bearing ore bodies of Kamar Tallar are occurred as discontinuous patches intimately associated with cherts and meta – spilites. Field evidences and study of trenches show that the Mn- bearing patches are principally superficial and laterally limited. Braunite, Bix...

Primary bud necrosis (PBN) of grapevine, which is a physiological disorder, seriously decreases the fruit yield of vineyards. This research was carried out to determine the effects of mineral deprivation on increasing the incidence of PBN in ‘Askari’ table grapes in Sisakht region of Southwest of Iran. For this purpose, the changes of mineral elements in leaves and PBN percentage were estimated...

احمدیان, احمد, توسلی, ابوالفضل, قنبری, احمد,

Abstract This research was performed in a completely randomized block design with four replications to investigate zinc (Zn) and manganese (Mn) nutrition effects on greenhouse tomato (Lycopersicon esculentum Mill. cv. HAMRA) in a perlite-containing media. Experimental treatments were: (1) control (Mn and Zn-free nutrient solution), (2) application of Mn in a concentration equal to the full Hoag...

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