نتایج جستجو برای: stand improvement

تعداد نتایج: 345114  

Journal: :تحقیقات مهندسی کشاورزی 0
اردشیر اسدی عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان اورنگ تاکی استادیار پژوهش بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان مختار میران زاده محقق بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان محمد طهری دانشجوی رشته مکانیک ماشین های کشاورزی دانشگاه شهرکرد

a semi-automatic 9-row transplanter for bare root seedlings has recently been developed at the isfahan center for agricultural research that plants 80 seedlings/m2 using 9 operators at a capacity of 0.3 ha/d (8 h). separating a single seedling from a bunch and dropping it into a distributer cell by hand takes 1 s on average. at a density of 700-800 thousand/ha, the travel speed should not excee...

2013
Dan Eisenberg Anna Bellatorre Nina Bellatorre

BACKGROUND The laparoscopic sleeve gastrectomy (LSG) is emerging as an effective bariatric operation and is especially attractive in high-risk populations. In this study we examine the efficacy of LSG as a stand-alone operation in the veteran population. METHODS This is a retrospective review of consecutive patients who underwent LSG as a stand-alone procedure at the Palo Alto Veterans Affair...

Journal: :محیط شناسی 0
فرزام توانکار دانشگاه آزاد اسلامی، واحد خلخال، استادیار علوم جنگل امیر اسلام بنیاد دانشکدة منابع طبیعی دانشگاه گیلان، صومعه سرا ، دانشیار علوم جنگل باریس مجنونیان دانشکدة منابع طبیعی دانشگاه تهران، استاد مهندسی جنگل

selection cutting using skidding system often causes physical damage to residual stand through felling and skidding resulting decline of bole quality and tree value. this research evaluated logging damage using skidding system on residual trees and stand regeneration in uneven aged hardwood forest of asalem, were selection cutting was practiced. in this regard, systematic sampling method was us...

2009
Rajeev K Sukumaran Reeta Rani Singhania Ashok Pandey

Microbial cellulases find applications in various industries and constitute a major group of the industrial enzymes. Recently, there is resurgence in utilization of biomass for fuel production employing cellulases and hence forth in obtaining better yields and novel activities. Improving the economics of such processes will involve cost reduction in cellulase production which may be achieved by...

2006
Susanne Hermesch

The aim of this project was to optimise selection indices for efficient lean meat growth. Traditionally, genetic improvement of lean meat growth and feed efficiency has been based on ad libitum feeding. However, selection for lean meat growth and feed conversion ratio under ad libitum feeding has led to a reduction in feed intake in modern genotypes to the extent that feed intake is often not s...

Journal: :Remote Sensing 2015
Shinya Tanaka Tomoaki Takahashi Tomohiro Nishizono Fumiaki Kitahara Hideki Saito Toshiro Iehara Eiji Kodani Yoshio Awaya

The main objective of this study was to evaluate the effectiveness of adding feature variables, such as forest type information and topographicand climatic-environmental factors to satellite image data, on the accuracy of stand volume estimates made with the k-nearest neighbor (k-NN) technique in southwestern Japan. Data from the Forest Resources Monitoring Survey—a national plot sampling surve...

2015
Takeshi Takahashi Nobuo Takeshima Nicole L. Rogers Michael E. Rogers Mohammod Monirul Islam

[Purpose] The aim of this study was to compare the efficacy of passive motion exercise and active motion exercise on functional fitness in elderly nursing home residents. [Subjects and Methods] Twenty-three (female 22 and male 1) nursing home residents (84.8±4.3 yr) volunteered for this study. They were divided into a passive motion exercise group (n=12) and an active motion exercise group (n=1...

2012
WANG Chen

Chemiluminescent immunoassay (CLIA) has been applied in different fields, including environmental monitoring, clinical diagnosis, food safety and pharmaceutical analysis, as a promising approach for selective, sensitive, rapid and simple analysis. It is often necessary to detect a large number of complicated or low-abundance samples. However, traditional methods need great consumption of time, ...

2008
Susanne Hermesch Rob Jones

Pig breeders have successfully selected for higher litter size, reduced backfat and improved growth rate (Hermesch, 2006). These outcomes imply that modern sows have higher nutrient demands in comparison to sows of 20 years ago. For example, genetic improvement of litter size has been 0.10 to 0.20 piglets per year in maternal lines. This implies that sows need to eat 50 to 100 grams more feed p...

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