نتایج جستجو برای: 14080 m3 ha

تعداد نتایج: 74498  

Journal: :Revista Brasileira de Gestão Ambiental e Sustentabilidade 2021

O interesse em compreender a dinâmica da matéria orgânica do solo (MOS) consiste na sua relevância para funcionalidade e qualidade dos ecossistemas. Sob essa perspectiva, o presente trabalho objetiva analisar MOS função das características físicas químicas definir cenário de máxima expressão. A pesquisa foi conduzida áreas pastagem solteira sistemas silvipastoris linhas simples dupla, localizad...

2012
Daniel Mueller Johannes Schulze Hanns Ackermann Doris Klingelhoefer Stefanie Uibel David A Groneberg

UNLABELLED INTRODUCTION Potential health damage by environmental emission of tobacco smoke (environmental tobacco smoke, ETS) has been demonstrated convincingly in numerous studies. People, especially children, are still exposed to ETS in the small space of private cars. Although major amounts of toxic compounds from ETS are likely transported into the distal lung via particulate matter (PM)...

ژورنال: :تحقیقات جنگل و صنوبر ایران 0
محمود بیات استادیار پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور منوچهر نمیرانیان استاد، گروه جنگل داری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران محمود امید استاد، گروه مهندسی ماشین های کشاورزی، دانشگاه تهران آرمان رشیدی کارشناس ارشد جنگل داری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران سجاد بابایی دانشجوی کارشناسی ارشد جنگل داری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران

به طور کلی برای اداره و بهره برداری بهینه و پایدار از جنگل، آگاهی از موجودی حجمی جنگل و تولید آن ضروریست. برآورد دقیق موجودی حجمی به روش های متداول به طور عموم مستلزم وقت و هزینه زیادی است و گاهی نیز دارای دقت کافی نیست. یکی از روش های نوین در برآورد مشخصه های کمی جنگل استفاده از الگوریتم شبکه عصبی مصنوعی است که با الگوبرداری از شبکه عصبی مغز انسان، با اجرای فرآیند آموزش روابط درونی بین داده ها...

Journal: :The Journal of Experimental Medicine 2006
Honglin Xu Taehoon Chun Hak-Jong Choi Bin Wang Chyung-Ru Wang

The major histocompatibility complex (MHC) class Ib molecule H2-M3 primes the rapid expansion of CD8+ T cells by presenting N-formylated bacterial peptides. However, the significance of H2-M3-restricted T cells in host defense against bacteria is unclear. We generated H2-M3-deficient mice to investigate the role of H2-M3 in immunity against Listeria monocytogenes (LM), a model intracellular bac...

2016
Lingfu Zhang Dianrong Xiu Jun Zhan Xiaokun He Limei Guo Jilian Wang Ming Tao Wei Fu Hongquan Zhang

AIMS Recent studies showed that muscarinic acetylcholine receptor 3 (M3), as a muscarinic acetylcholine receptor family member that plays an important role in normal physiological function, is engaged in cancer progression. However, the role of M3 in pancreatic ductal adenocarcinoma (PDAC) is not known. The aim of this study is to investigate the expression and prognostic value of M3 in patient...

Journal: :Bìoenergetika 2022

Purpose. Increasing the efficiency of growing domestically bred sugar cultivation for bioethanol by optimizing elements technology. Methods. Field, laboratory, visual, measuring and weighing, mathematical statistical. Results. According to results a carried out in 2019–2020 under Western Polissya, it was found that sorghum biogas should be harvested September, as maximum root biofuel this perio...

بشارت, سینا, حسنی, عباس, رضاوردی نژاد, وحید, شبانیان اصل, مریم,

This experiment was conducted to determine evapotranspiration, crop coefficient and water use efficiency of cucumber and tomato for a period of six months in the Resarch Greenhouse of Urmia University. Daily evapotranspiration of cucumber, tomato and reference crop was measured using lysimeter method. Based on the results, cucumber evapotranspiration for growth period of 130 days was 272.4 mm a...

Journal: :Memorias do Instituto Oswaldo Cruz 1999
M d Moitinho M Bertoli T A Guedes C S Ferreira

Giardia duodenalis cysts obtained from fresh fecal samples, fecal samples kept under refrigeration and fecal samples treated with formalin were studied as to their floatability on sucrose solutions with the following specific gravities: 1,040 kg/m3; 1,050 kg/m3; 1, 060 kg/m3; 1,070 kg/m3; 1,080 kg/m3; 1,090 kg/m3; 1,100 kgm3; 1,150 kg/m3; 1,200 kg/m3; and 1,250 kg/m3, contained within counting-...

Journal: :The Journal of infectious diseases 2000
Y Inagaki F Myouga H Kawabata S Yamai H Watanabe

Genomic differences among past Streptococcus pyogenes serotype M3 strains isolated in 1973 and before from patients with streptococcal pharyngitis, recent (1990s) serotype M3 clinical isolates from patients with pharyngitis, and recent M3 isolates from patients with toxic shock-like syndrome were investigated by restriction landmark genomic scanning and by modified random-amplified polymorphic ...

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