نتایج جستجو برای: flow ability

تعداد نتایج: 882707  

2006
Hai Zhuge Lianhong Ding Xiang Li H. Zhuge L. Ding

Scientific documents, research instruments, researchers’ abilities and cooperation among researchers are fundamental resources of scientific research. This paper proposes an approach for effectively networking scientific resources by detecting community structures in self-organized social network, discovering interest in information flow, capturing changes of interests over time, and analyzing ...

Journal: :The American naturalist 2012
Aysegul Birand Aaron Vose Sergey Gavrilets

The exact nature of the relationship among species range sizes, speciation, and extinction events is not well understood. The factors that promote larger ranges, such as broad niche widths and high dispersal abilities, could increase the likelihood of encountering new habitats but also prevent local adaptation due to high gene flow. Similarly, low dispersal abilities or narrower niche widths co...

Journal: :Kansas Agricultural Experiment Station Research Reports 2007

Journal: :international journal of environmental research 2013
h. rahmanzadeh bahram m.h. kianmehr s.r. hassan-beygi i. valaei

dependence on chemical fertilizer continually is increasing. continual increasing of using chemicalfertilizer causes nature pollution (e.g. water contamination). this has led researchers to aggressively investigate renewable fertilizer resources, biomass, to produce organic crops and reduced wastage. wormy compost is a bulk solid and biomass feed stocks. wormy compost flow is obstacle as it oft...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی 1392

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده روانشناسی و علوم تربیتی 1391

the purpose of this study was the relationship between problem – solvi ability with fdi cognitive style of students.the research method was correlation method. for data analysis pearson test was used. statistical society in this research was all the students of alligoodarz city in 1391-92 year.to sampling of statiscal population was used sampling multi-stage random the size of sample selected 2...

Reza Janjani Valli Khodadadi

This paper examines the effects of the predictive ability of accruals and cash flows on earnings quality in Tehran Stock Exchange (TSE). In this study we have used two methods: cross-section and pooled for testing hypothesis. The results show that Sloan model has the strongest ability to predict future earnings, and cash component earnings have more ability than accruals component earnings for ...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
سیدرسول واردی محمدجواد مغربی محمود نوروزی محمدمحسن شاهمردان

in this paper, the transient inertial viscoelastic flow around a circular cylinder is investigated numerically. a second order finite-volume method is used to increase the numerical accuracy. here, the giesekus model is used as the constitutive equation. this nonlinear model has prominent ability in describing normal stress differences and viscosity in power-law regions. the impacts of the elas...

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