نتایج جستجو برای: compound matrix method

تعداد نتایج: 2024153  

2013
Kenan Varda

In this paper is presented the design structure matrix method for project management relations. This method differs from traditional methods of project management because it focuses on the presentation of information flow, and the effects that these flows have on the flow performance of the overall project. This method is used for solving problem in wind tunnel "Armfield C15-10", where is prese...

2001
Jian-Sheng Wang Robert H. Swendsen

We present a formalism of the transition matrix Monte Carlo method. A stochastic matrix in the space of energy can be estimated from Monte Carlo simulation. This matrix is used to compute the density of states, as well as to construct multi-canonical and equal-hit algorithms. We discuss the performance of the methods. The results are compared with single histogram method, multi-canonical method...

Journal: :Meteoritics & Planetary Science 2023

Chondrules are microscopic, recrystallized melt droplets found in chondritic meteorites. High-resolution isotope analyses of minor elements require large enough element quantities which obtained by dissolving entire chondrules. This work emphasizes the importance X-ray computed tomography (XCT) to detect features that can significantly affect bulk chondrule composition. It thereby expands on ot...

A new Schulz-type method to compute the Moore-Penrose inverse of a matrix is proposed. Every iteration of the method involves four matrix multiplications. It is proved that this method converge with fourth-order. A wide set of numerical comparisons shows that the average number of matrix multiplications and the average CPU time of our method are considerably less than those of other methods.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

اسانس گیاهان خشک شده در سایه haplophyllum acutifolium، salvia chloroleuca به دو روش1.تقطیر با آب 2. روش میکرواستخراج فاز جامد با نمونه برداری از فضای فوقانی گرفته شد و سپس به روشgc/ms مورد آنالیز و شناسایی قرار گرفت. عمده ترکیبات اسانس گیاه haplophyllum acutifolium: stem oil (%) flower oil (%) leaf oil (%) ri compound with head space area %)) ri compound with hydrodistillation 19.19 17.55 3...

Journal: :computational methods in civil engineering 2013
r. khajavi

for the nonlinear analysis of structures using the well known newton-raphson method, the tangent stiffness matrices of the elements must be constructed in each iteration. due to the high expense required to find the exact tangent stiffness matrices, researchers have developed novel innovations into the newton-raphson method to reduce the cost and time required by the analysis. in this paper, a ...

Journal: :Journal of the Optical Society of America A 2004

Journal: :international journal of nano dimension 0
sh. ghammamy department of chemistry, faculty of science, imam khomeini international university, qazvin, iran. a. shakibfar department of chemistry, payame noor university, qazvin, iran.

a new mixed  halo chromate  nanoparticle compound was synthesised and characterized. triphenylphosphonium trifluoroiodochromate (iii)[p(c6h5)3h]+[crf3i]- nanoparticle was synthesized by using triphenylphosphonium  iodide reaction with crf3, in the presence of  3-mercaptopropionic acid. this method is a simple and direct method. the product was characterized by spectroscopic and analytical metho...

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