نتایج جستجو برای: 1600 ha each

تعداد نتایج: 1090944  

Journal: :Cancer letters 1994
L S Gold T H Slone N B Manley B N Ames

Results in the Carcinogenic Potency Database (CPDB) on 11 mutagenic heterocyclic amines (HA) tested for carcinogenicity in rats, mice and cynomolgus monkeys are compared to results for other chemicals. An analysis of strength of evidence of carcinogenicity for HA vs. other mutagenic carcinogens and vs. all rodent carcinogens, indicates strong carcinogenicity of HA in terms of positivity rates a...

Journal: :Les 2022

The dendrochronological climate signal of Norway spruce (Picea abies), European larch (Larix decidua), and beech (Fagus sylvatica), among others, depends on altitude, therefore we have to collect data systematically for each species along altitude gradients. To this end, established local tree-ring chronologies the three two elevation gradients: (1) Kokra – Jezersko with sites at 750, 780, 950,...

Journal: :پژوهش های زراعی ایران 0
مریم جهانی کندری علیرضا کوچکی مهدی نصیری محلاتی پرویز رضوانی مقدم

in order to investigate diversity of weed species in wheat fields in eastern parts of mashhad, an investigation was made in the year 2009. wheat fields was classified based on the acreage from 3-5 ha, 5-10 ha and higher than 10 ha. sampling was made randomly by a quadrate 0.5×0.5 in 9 fields of each group from jointing to heading of wheat in tow separate stages. type and total number of weeds w...

Journal: :Journal of animal science 2016
U Dickhoefer B M Bösing M Hasler J Hao L Lin K Müller C Wang T Glindemann B Tas M Gierus F Taube A Susenbeth

An increasing human population and the growing demand for food of animal origin are leading to an intensification of sheep production and widespread overgrazing of the grassland steppe in Inner Mongolia. The aim of this study was to analyze the effect of herbage allowance (HA) on OM intake (OMI) and BW gain (BWG) of grazing sheep. In July to September 2005 to 2010, a grazing experiment was cond...

2012
Adela V'asquez Henry Arellano

We estimated the aerial biomass and stored carbon in twelve types of forests in the department of Córdoba with annual rain fall ranging from 3000 mm (super humid climates) to 1300 mm (semihumid climate). Biomass was estimated based on structural aspects of the vegetation (diameter at breast height, total height, and wood specific weight). We tested nine allometric equations for tropical forests...

2014
Ana I. Carrapiso Carmen García

The objective of this study was to investigate the effect of the rearing conditions during the fattening period of Iberian pigs on the acceptance of the dry-cured hams, and to research into the relationship between acceptance and sensory characteristics, chemical composition and physical-chemical parameters. The duration of the fattening period in Montanera (outdoor system based on acorns and g...

2003
R. Villanueva M. R. Lipinski C. Perales-Raya J. Riba F. Rocha

Egg masses of the loliginid squid Loligo vulgaris Lamarck, 1798 are attached to hard substratum or branched sessile organisms on the sea bottom. Embryonic development lasts from a few weeks to a few months, depending on the environmental water temperature. Because embryonic statolith growth of L. vulgaris is very sensitive to temperature under laboratory conditions, we analyzed the possibilitie...

Journal: :Environmental Modelling and Software 2007
Pedro Jiménez René Parra José María Baldasano

Initial (IC) and boundary conditions (BC) are required in order to solve the set of stiff differential equations included in air quality models. In this work, the influences of ICeBC are analyzed in the northeastern Iberian Peninsula (NEIP) by applying MM5eEMICAT2000eCMAQ. A multiscale-nested configuration has been used to generate the ICeBC. The wider domain (D1) covers an area of 1392 1104 km...

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

در این پژوهش ابتدا پودر هیدروکسی آپاتیت (ha) با استفاده از روش شیمیایی تر سنتز شد. برای کسب اطمینان از ترکیب پودر آنالیزهای تفرق اشعه ایکس ((xrd و طیف سنجی مادون قرمز و تبدیل فوریه ( (ftir انجام شد و براساس تصاویر میکروسکوپ الکترون روبشی (sem) ابعاد پودرnm 5±30 تعیین گردید. سوسپانسیون حاوی نانو ذرات ha g/l)10) با مقادیر مختلف پلی اتیلن گلیکول (peg) (0، 1، 2، 4 و g/l 6) به عنوان توزیع کننده تهیه...

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