نتایج جستجو برای: block and path

تعداد نتایج: 16865781  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1389

امروزه، رشد آگاهی عمومی و نگرانی در مورد تهدید فعالیت های صنعتی بر روی سلامت انسان ها و محیط زیست، مدیریت های صنعتی را مجبور به افزایش سطح ایمنی خود نموده است. مطالعه مخاطرات و قابلیت عملکرد سیستم (hazop) به عنوان پرکاربردترین روش شناسایی مخاطرات فرآیندی شناخته شده است. هدف این مطالعه شناسایی مخاطرات فرآیندی و مشکلات بهره برداری در جهت کاهش مخاطرات و بهبود عملکرد سیستم واحدهای بازیافت گوگرد پال...

Journal: :Inf. Process. Lett. 1996
Roberto De Prisco Giuseppe Parlati Giuseppe Persiano

The path length of a tree, that is the sum of the lengths of all root-leaf paths, is an important measure of eeciency of the tree. The fringe of a tree is the diierence between the lengths of the longest path and the shortest path in the tree. The minimal and the maximal path length of trees with N leaves and given fringe have been well studied. In this paper, we initiate the study of the expec...

2013
Laura Trinchera Vincenzo Esposito Vinzi

This discussion paper will focus on the predictive modeling of relationships between latent variables in a multi-block data framework. We will refer to component-based methods such as Partial Least Squares Path Modelling, Generalized Structured Component Analysis as well as to some of their recent variants and other alternatives. We will compare these approaches by paying particular attention t...

2002
LUIS M. FERNANDES ISABEL N. FIGUEIREDO JOAQUIM J. JÚDICE

In this paper the solution of a finite element approximation of a linear obstacle plate problem is investigated. A simple version of an interior point method and a block pivoting algorithm have been proposed for the solution of this problem. Special purpose implementations of these procedures are included and have been used in the solution of a set of test problems. The results of these experie...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده زیست شناسی 1391

بررسی تآثیر کورکومین بر بیان آکواپورین5 در سلول های سرطانی روده بزرگ انسان(ht-29) سرطان روده بزرگ جزو بیماری های خطرناک بوده و از نظر شیوع سومین سرطان شایع و دومین علت مرگ ومیر ناشی از سرطان در جهان محسوب می شود. خطرابتلا به این سرطان تحت تاثیر دو عامل محیطی وفاکتورهای ژنتیکی می باشد. آکواپورین ها، پروتئین های کانال آبی بوده که نقش مهمی را در انتقال آب در بافتهای اندوتلیالی و اپی تلیالی بر عهد...

2007
Giovanni CapoCCia r. daniel Kelemen

T concept of “critical junctures” is an essential building block of historical institutionalism. many causal arguments in the historical institutionalist literature postulate a dual model of institutional development characterized by relatively long periods of path-dependent institutional stability and reproduction that are punctuated occasionally by brief phases of institutional flux—referred ...

2006
Bonnie C Baker

One of the jobs of a circuit designer is to build a measurement system that provides valid input-to-output data as defined by the system requirements over a given frequency range. The four possible elements of a signal path include a gain/signal conditioning cell, an anti-aliasing filter, an analog-to-digital converter (ADC) and a digital processing block. Figure 1 shows this type of system wit...

2010
Chih-Heng Ke Rung-Shiang Cheng Chen-Da Tsai Ming-Fong Tsai

Multipath transmission which uses multiple paths for data transfer has been used in wireless networks to improve the performance of end-to-end transmission. However, wireless networks suffer from high packet loss rate, variations in end-to-end delay and available bandwidth. Hence, the Forward Error Correction (FEC) mechanism has been proposed to recover lost packets by adapting to the changing ...

Journal: :journal of advances in medical education and professionalism 0
zahra zahed zahedani khorasgan (isfahan) branch, islamic azad university, isfahan, iran rita rezaee education development center, quality improvement in clinical education research center, shiraz university of medical sciences, shiraz, iran zahra yazdani department of educational management, college of education science, khorasgan (isfahan) branch, islamic azad university, isfahan, iran sina bagheri student research committee, shiraz university of medical sciences, shiraz, iran parisa nabeiei education development center, quality improvement in clinical education research center, shiraz university of medical sciences, shiraz, iran

introduction: several factors affect the academic performance of college students and parenting style is one significant factor. the current study has been done with the purpose of investigating the relationship between parenting styles, academic achievement and career path of students at shiraz university of medical sciences. methods: this is a correlation study carried out at shiraz universit...

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