نتایج جستجو برای: aggregation operation

تعداد نتایج: 275880  

Journal: : 2021

The article is devoted to the problem of reduction tubers mechanical damages while providing qualitative indicators potato heap separation process. Theoretical and experimental dependences influence design kinematic parameters machine operation on quality performance are obtained. Within field studies, a installation was made investigate harvester as whole efficiency separation, degree damage, ...

Journal: :Energy 2021

Distributed energy storage is a solution for increasing self-consumption of variable renewable such as solar and wind at the end user site. Small-scale systems can be centrally coordinated by "aggregation" to offer different services grid, operational flexibility peak shaving. This paper shows how centralized coordination vs. distributed operation residential electricity (home batteries) could ...

Journal: :journal of agricultural science and technology 2010
s. s. hosseini j. spriggs

government interventions in agricultural markets in order to stabilize commodity prices and producer incomes have had a long tradition. intervention has been at both the state and country levels and has been for the most part in the form of commodity-based schemes. this study represents an attempt to develop an appropriate methodology for analyzing the aggre-gate effects of a particular type of...

Journal: :journal of research in medical sciences 0
amin nemati research assistant, medical students research center, isfahan university of medical sciences and colorectal cancer research group, poursina hakim research institute, isfahan, iran zahra kazemi rahmatabadi research assistant, colorectal cancer research group, poursina hakim research institute, isfahan, iran alimohammad fatemi assistant professor, department of internal medicine, school of medicine, isfahan university of medical sciences, isfahan, iran mohammad hassan emami associate professor, department of internal medicine, school of medicine, isfahan university of medical sciences and colorectal cancer research group, poursina hakim research institute, isfahan, iran

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background : there is a lack of data on familial aggregation of colorectal cancer (crc) in iran. we aimed to determine the frequency of hereditary nonpolyposis colorectal cancer (hnpcc) and familial colorectal cancer (fcc) and to determine the frequency of extracolonic cancers in these families in isfahan. methods : we rev...

Journal: :biomacromolecular journal 0
ali akbar moosavi-movahedi ibb, universiy of teharn ali akbar saboury institute of biochemistry and biophysics, university of tehran, tehran, iran saman hosseinkhani faculty of biological sciences, tarbiat modares university, tehran, iran azadeh lohrasbi-nejad department of biotechnology, faculty of agriculture, shahid bahonar university of kerman, kerman, iran mehran habibi-rezae school of biology, college of science, university of tehran, tehran, iran parvaneh maghami ibb, university of tehran, tehran, iran maliheh atri

estimation of protein stability is important for many reasons: first providing an understanding of the basic thermodynamics of the process of folding, protein engineering, and protein stability plays important role in biotechnology especially in food and protein drug design. today, proteins are used in many branches, including industrial processes, pharmaceutical industry, and medical fields. a...

Journal: :iranian journal of pharmaceutical research 0
h khan m hafizullah m hafizullah

this study was performed to assess the clopidogrel activity in inhibition of platelet aggregation in suspected angina patients on a daily dosag of 75 mg of clopidogrel for at least 7 days. this clinical trial was conducted in the outpatients department of cardiology, post graduate medical institute, lady reading hospital, peshawar from 15th october 2007 to 20th december 2007. we included 105 su...

Journal: :iranian journal of radiation research 0
n.s. selim biophysics lab, department of radiation physics, national center for radiation research and technology (ncrrt), eaea, pob 29 madinat nasr, cairo, egypt o.s. desouky biophysics lab, department of radiation physics, national center for radiation research and technology (ncrrt), eaea, pob 29 madinat nasr, cairo, egypt s.m. el-marakby biophysics lab, department of radiation physics, national center for radiation research and technology (ncrrt), eaea, pob 29 madinat nasr, cairo, egypt i.h. ibrahim department of physics, faculty of science, ain shams university, cairo, egypt h.a. ashry biophysics lab, department of radiation physics, national center for radiation research and technology (ncrrt), eaea, pob 29 madinat nasr, cairo, egypt

background: the study of rheological properties of blood has special interest since it is a circulating fluid exposed to shear rates during its life time. this work aims to investigate the influence of whole body gamma irradiation on the rheological properties of rat’s blood. the applied shear rate was from 12 to 375 s-1. low shear viscosity (up to 100 s-1) depends mainly on the erythrocytes ag...

Journal: :Inf. Sci. 2003
Young-Koo Lee Kyu-Young Whang Yang-Sae Moon Il-Yeol Song

Aggregation is an operation that plays a key role in multidimensional OLAP (MOLAP). Existing aggregation methods in MOLAP have been proposed for file structures such as multidimensional arrays. These file structures are suitable for data with uniform distributions, but do not work well with skewed distributions. In this paper, we consider an aggregation method that uses dynamic multidimensional...

2013
Prabjot Kaur Sanjay Kumar

Selecting the right vendor from a large number of possible vendors is a non-trivial task, in which multiple criteria need to be examined carefully. The Multiple criteria decision making provides an effective framework for vendor comparison based on the evaluation of multiple conflict criteria. The decision maker’s information on the conflicting criteria is imprecise due to lack of time or lack ...

2007
Y. C. Liu

An approximation algorithm for analyzing a closed queueing systems with a K-sibling fork/join queue is presented. The procedure is based on decomposition and aggregation. The approximation procedure gives good results for the mean response time and the system throughput. However, it gives results which are an upper bound of the mean response time of the fork/ join operation and a lower bound of...

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