نتایج جستجو برای: Shape factor

تعداد نتایج: 1023669  

Journal: :journal of chemical and petroleum engineering 2014
clemens brand mohammad taghi amiry zoltan e. heinemann

fifty years ago warren and root have introduced the shape factor. this fundamental parameter for modeling of naturally fractured reservoirs has been discussed stormily ever since. different definitions for shape factor have been suggested which all of them are heuristically based. recently, heinemann and mittermeir mathematically derived - based on the dual-continuum theorem assuming pseudo-ste...

Journal: :journal of mining and environment 2016
m. hosseini nasab

in this research work, the parameters affecting the settling velocity within the thickeners were studied by introducing an equivalent shape factor. several thickener feed samples of different densities including copper, lead and zinc, and coal were prepared. the settling tests were performed on the samples, and the corresponding settling curves were plotted. using the linear regression analysis...

Journal: :فیزیک زمین و فضا 0
وحید ابراهیم زاده اردستانی مؤسسه ژئوفیزیک دانشگاه تهران، دانشیار

a new method derived by salem et al. (2004) for interpretation of gravity and magnetic anomalies is used to determine the depth and shape factor of the gravity anomalies. the depth and shape factor of some rectangular prisms as synthetic models are estimated using the method. the gravity effects of the models are contaminated with some random noise and then the parameters of the models are extr...

Clemens Brand Mohammad Taghi Amiry, Zoltan E. Heinemann

Fifty years ago Warren and Root have introduced the shape factor. This fundamental parameter for modeling of naturally fractured reservoirs has been discussed stormily ever since. Different definitions for shape factor have been suggested which all of them are heuristically based. Recently, Heinemann and Mittermeir mathematically derived - based on the dual-continuum theorem assuming pseudo-ste...

M. Ghalambaz,, M. Shahmiri, Y. H. K Kharazi,

Abstract: Problems such as the difficulty of the selection of processing parameters and the large quantity of experimental work exist in the morphological evolutions of Semisolid Metal (SSM) processing. In order to deal with these existing problems, and to identify the effect of the processing parameters, (i.e. shearing rate-time-temperature) combinations on particle size and shape factor, ...

Journal: Journal of Nuts 2019

Roasting is the most common way for pistachio nuts processing, and the purpose of that was to increase the products total acceptability. Purpose of this study was to investigate the effect of temperature (90, 120 and 150°C), time (20, 35 and 50 min), and roasting air velocity (0.5, 1.5 and 2.5 m/s) on geometrical attributes of pistachio nuts and kernels including principle dimensions, shape fac...

Journal: :مرتع و آبخیزداری 0
عطااله کاویان استادیار و عضو هیئت علمی دانشگاه علوم کشاورزی و منابع طبیعی ساری فاطمه آدینه کارشناس ارشد آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی ساری قربان وهاب زاده استادیار دانشگاه علوم کشاورزی و منابع طبیعی ساری عبدالواحد خالدی درویشان استادیار و عضو هیئت علمی دانشگاه تربیت مدرس

investigating downstream changes in bed load shape can be useful to detect watershedhydrological processes and it is very important to design hydraulic structures and to managecapacity of large storage dams, properly. regarding to doing of enforcement studies, thisresearch was conducted in qalesar river in upstream of chahardangeh watershed in mazandaranprovince. after recognition of the study ...

Journal: :Social Science Research Network 2021

Journal: :Journal of Advanced Studies in Finance 2020

2011
N. A. Thacker H. Ragheb

In previous documents we have outlined an approach for the analysis of 2 and 3D shape vectors using measurement covariances for the situation where the measurements are known to be independent. The purpose of this document is to explain the mathematics required to extend this approach to “pseudolandmarks”, where information is provided at a given 2 or 3D location only in 1D. We show that the us...

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