نتایج جستجو برای: d inversion of micro

تعداد نتایج: 21242133  

2001
Aria Abubakar Peter M. van den Berg Jordi J. Mallorqui

In this paper, the recently developed multiplicative regularized contrast source inversion method is applied to microwave biomedical applications. The inversion method is fully iterative and avoids solving any forward problem in each iterative step. In this way, the inverse scattering problem can efficiently be solved. Moreover, the recently developed multiplicative regularizer allows us to app...

Abdollah Banihashem, Ali Ghasemi , Hamid Farhangi , Sara Hesari , Zahra Badiei ,

Bakcground: The aim of ITP treatment is to prevent intracranial hemorrhage and increase the platelet count rapidly. This study was conducted with the objective of comparing the efficacy of anti-D immunoglobulin (Ig) with dexamethasone in treating childhood ITP. Materials and Methods: In this randomized prospective control trial, 20 ITP patients (Platelet count<20,000/&micro;l) younger than...

2008
V. K. Oikonomou

The temperature inversion symmetry, for a non interacting super-symmetric ensemble, at finite volume, is studied. It is found that, the scaled free energy, f (ξ), is antisymmetric under temperature inversion transformation, i.e. f (ξ) = −ξ d f (1 ξ). This occurs for antiperiodic bosons and periodic fermions, in the compact dimension. On the contrary , for periodic bosons and antiperiodic fermio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی 1391

نگهداری از زیرساخت ها به همان اندازه ی ایجاد و توسعه زیرساخت ها امری ضروری برای توسعه پایدار می باشد. شبکه راه ها یکی از اساسی ترین ارکان توسعه پایدار محسوب می شوند. برای نگهداری از شبکه راه ها وجود یک سامانه مدیریت نگهداری روسازی الزامی است که بتوان از آن به عنوان ابزار تصمیم گیری استفاده کرد. به همین دلیل اکثر کشورهای در حال توسعه به دنبال یک سامانه مدیریت نگهداری روسازی کارآمد هستند که بتوان...

Journal: :journal of membrane science and research 0
m.j.j. erniza school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, pulau pinang, malaysia a.l. ahmad school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, pulau pinang, malaysia s.c. low school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, pulau pinang, malaysia

a microporous bisphenol a diglycidyl ether (dgeba) epoxified-polyethersulfone (pes) blend membrane (epes membrane) was prepared through dry-wet phase inversion. this study attempts to correlate the changes in membrane physical and chemical properties when the epes membranes were exposed to different durations of dry-phase inversion, towards the separation efficiency of carcinogen chromium (vi)....

2002
G. WALLACE

We investigate the transmission coefficient for propagation of electromagnetic radiation, of frequency w, through an electron inversion layer, of finite thickness d, in the metal-oxide-semiconductor (MOS) structure. The corresponding result in the case where the inversion layer is treated as infinitely thin (two-dimensional electron gas) has been given by Chiu et al. Subject to the assumptions ...

Journal: :The Journal of General Physiology 1938
Irwin W. Sizer

Inversion of sucrose by bakers' yeast follows the same course as inversion catalyzed by yeast invertase. Rate of inversion increases exponentially with temperature; the temperature characteristic in the Arrhenius equation is 10,700 below 13-17 degrees C., and 8,300 above that temperature. Temperature inactivation occurs above 40 degrees C. The effects of temperature upon rate of inversion were ...

2008
J. Hua Q. Qin J. J. Pekar P. C. van Zijl

Introduction: Arteriolar cerebral blood volume (CBVa) is an important physiological parameter regulating tissue perfusion. We demonstrate a novel approach to measure absolute CBVa (CBVa) based on a variant of vascular-space-occupancy (VASO) MRI (1). VASO is a contrast-agent-free MRI technique that is sensitized to micro-vascular CBV changes through nulling of blood signal. Instead of the spatia...

2003
Hongbo Zhang Gary F. Margrave

The method of simultaneous PP-PS inversion has recently been developed and tested on the 3-D Blackfoot seismic data set. This paper shows the application of this method on 3C-2D seismic data from Pikes Peak oilfield. The inversion was accomplished with a newly installed inversion module in ProMAX. After careful prestack processing, five limitedoffset stacked sections for each of the vertical an...

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