نتایج جستجو برای: spin cut off parameter

تعداد نتایج: 557386  

2010
Tamas B. BAKO

This paper is an engineer-to-engineer note, to show a problematic point of long time DC measurements and show tips how to achieve higher accuracy there.. At long time measurements, rounding errors can seriously influence the output value. The problem is not just theoretical; our investigation is started because of a malfunctioning dilatation sensor system used at industrial turbines. We tried t...

Journal: :آب و خاک 0
علی سلیمانی مسلم مرادی لیلا نارنجانی

abstract to evaluate the effects of the irrigation termination in different growth stages on yield and its components of autumn’s canola cultivars in isfahan region. an experiment was conducted in 2005-2006 in kabotar abad research station. a split plot layout within a randomized complete block design with tree replication was used. main plots were seven level of the irrigation cut-off time (d1...

Journal: :journal of the structural engineering and geotechnics 0
seyed majdeddin mir mohammad hosseini prof. amirkabir univ. of technology, tehran- iran abdolhossein azadmaneshb b. sc. civil eng. mahab ghodss consulting eng. co., tehran- iran

in the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. in this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. the concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

Journal: :بینا 0
علی اصغر بهنام قادر aa behnamghader po box: 14155-4777کرج- پژوهشگاه مواد و انرژی- صندوق پستی 4777-14155 افروز لطیفی a latifi دانشگاه آزاد اسلامی- واحد علوم و تحقیقات ریحانه نقابت شیرازی r neghabat-shirazi دانشگاه آزاد اسلامی- واحد علوم و تحقیقات حیدر سیاتیری h siatiri دانشگاه علوم پزشکی تهران

purpose: to compare the optical properties of hydrophilic and hydrophobic intraocular lenses (iols) containing uv-absorber and to determine their chemical composition. methods: optical properties of different foldable hydrophilic and hydrophobic as well as non-foldable hydrophobic polymethylmetacrylate (pmma) iols were evaluated in three powers of 15, 22 and 25 diopters. optical properties were...

2012
SHOUGUO LI CHANG YANG

Cut-off grade is one of the very important technical and economic parameters, which affects the economic and social efficiency in a mine enterprise. It is also the basis of the deposits technical economy evaluation, feasibility study, mining planning and design and the foundation of the decision-making in mining investment. Thereby, cut-off grade optimization is one of the core contents and the...

رضوانفر, محمدرضا, رفیعی, محمد, طلایی, افسانه, یادگاری, نسرین,

Background and Aim: Vitamin D has a basic role in bone development and metabolism. Regarding high prevalence of vitamin D deficiency in Iran, we aimed to investigate its point prevalence in Arak, Iran and determine a cut-off point for vitamin D deficiency in the region. Materials and Methods: In a cross-sectional study,420 adolescents (220 girls, 200 boys) aged 10-16 years old were selected usi...

A Jafarnejad Ali Asghar khodaiari,

Maximizing economic earnings is the most common goal in cut-off grade optimization of open-pit mining operations. When this is the case, the price of the product has a critical effect on optimum value of cut-off grade. This paper investigates the relationship between optimum cut-off grade and price to maximize total cash flow and net percent value (NPV) of operation. In order to visualize this ...

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