نتایج جستجو برای: sigma

تعداد نتایج: 23805  

In this note we characterize the compact weighted Frobenius-Perron operator $p$ on $L^1(Sigma)$ and determine their spectra. We also show that every weakly compact weighted Frobenius-Perron operator on $L^1(Sigma)$ is compact.

Emadi, Behzad , Gholami, Mehrdad x, Kouhsari, Ebrahim , Moghoofei, Mohsen , Pournajaf, Abazar , Sedighi, Mansour , Tohidfar, Masoud ,

Background: Sigma factors are proteins that regulate transcription in bacteria. Sigma factors can be activated in response to different environmental conditions. The rpoS (RNA polymerase, sigma S) gene encodes sigma-38 (σ38, or RpoS), a 37.8 kDa protein in Pseudomonas aeruginosa (P. aeruginosa) strains. RpoS is a central regulator of the general stress response and operates in both retroa...

Journal: :international journal of environmental research 2014
k. aghajanloo m.d. pirooz

in this research a three dimensional model is explained which simulate the oil spill behavior inseas. this model is the developed version of previous two-dimensional study of aghajanloo et al., 2013.because of three-dimensional nature of the oil dispersion/movement in water, this is a more realistic model of oil spill transport and fate in marine environment. the model is based on eulerian appr...

Journal: :journal of optimization in industrial engineering 2013
seyed habib a rahmati abolfazl kazemi mohammad saidi mehrabad alireza alinezhad

six-sigma has some measures which measure performance characteristics related to a process. in most of the traditional methods, exact estimation is used to assess these measures and to utilize them in practice. in this paper, to estimate some of these measures, including defects per million opportunities (dpmo), defects per opportunity (dpo), defects per unit (dpu) and yield, a new algorithm ba...

Journal: :international journal of electrical and electronics engineering 0
mohsen tamaddon ph.d. student, integrated circuits design laboratory, department of electrical engineering, amirkabir university of technology (tehran polytechnic), tehran, iran. mohammad yavari associate professor, ph.d. student, integrated circuits design laboratory, department of electrical engineering, amirkabir university of technology (tehran polytechnic), tehran, iran.

the rapid scaling in modern cmos technology has motivated the researchers to design new analog-to-digital converter (adc) architectures that can properly work in lower supply voltage. an exchanging the data quantization procedure from the amplitude to the time domain, can be a promising alternative well adapt with the technology scaling. this paper is going to review the recent development in t...

Journal: :Theory of Probability & Its Applications 2004

ژورنال: مدیریت سلامت 2007
اسدی, فرخنده,

Introduction: Health Care organizations, because of their special nature of Medical Services, impossibility of assessment by customers, and increasing of patients and customer expectation, have to apply different management approach. In recent decade Six Sigma has been considered as systematic and powerful to improve service quality and cost saving. Six Sigma is a statistical and systematic app...

    Six sigma,   Rolled throughput yield, Organizational performance Six Sigma is a well- established approach to improve the capability of business processes in order to gain satisfaction of customers. The performance assessment of a given process is essential to some phases of six sigma methodology. So far, different indicators are used to demonstrate the performance of a process, while many ...

‎The symmetric doubly stochastic inverse eigenvalue problem (hereafter SDIEP) is to determine the necessary and sufficient conditions for an $n$-tuple $sigma=(1,lambda_{2},lambda_{3},ldots,lambda_{n})in mathbb{R}^{n}$ with $|lambda_{i}|leq 1,~i=1,2,ldots,n$‎, ‎to be the spectrum of an $ntimes n$ symmetric doubly stochastic matrix $A$‎. ‎If there exists an $ntimes n$ symmetric doubly stochastic ...

Enterprise Resource Planning (ERP) has become the most strategic tool for an organization to employ. A leading ERP solution is SAP®. It has been employed by organizations to enable them to collaborate on different projects and to integrate all aspects of operations. Just as organizations have adopted ERP solutions, they employed quality initiatives that are designed to help organizations ma...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید