نتایج جستجو برای: unstructured problems

تعداد نتایج: 597593  

1998
C. R. Johnson M. Berzins L. Zhukov

We present a n o verview of SCIRun, a scientiic problem solving environment that allows the interactive construction, debugging, and steering of large-scale scientiic computations. Using this \computational work-bench," a scientist can design and modify simulations interactively via a dataaow programming model. SCIRun enables scientists to design and modify model geometry, i n teractively chang...

1997
Rupak Biswas Leonid Oliker

Mesh adapt(on is a powerful tool for efficient unstructured-grid computations but causes load imbalance among processors on a parallel machine. A dynamic load balancing method is presented that balances the workload across all processors with a global view. After each parallel tetrahedral mesh adapt(on, the method first determines if the new mesh is sufficiently unbalanced to warrant a repartit...

Journal: :J. Comput. Physics 2007
Matthew E. Hubbard

This paper addresses the issue of constructing non-oscillatory, higher than second order, fluctuation splitting methods on unstructured triangular meshes. It highlights the reasons why existing approaches fail and proposes a procedure which can be applied to any high order fluctuation splitting scheme to impose positivity on it. Its success is demonstrated through application to a series of lin...

Journal: :Computer and Information Science 2009
Fatimah Sidi Marzanah A. Jabar Mohd Hasan Selamat Abdul Azim Abdul Ghani Md Nasir Sulaiman

The difficulty of defining and capitalizing the knowledge in an organization from the business data captured in text files. These text files defined as unstructured document that is without a specific format example, plain text. Hence, this paper presents an Interrogative Knowledge Identification framework to identify unstructured documents that encompassed knowledge, information, and data. It ...

1995
D. J. Mavriplis

An overview of current multigrid techniques for unstructured meshes is given. The basic principles of the multigrid approach are first outlined. Application of these principles to unstructured mesh problems is then described, illustrating various different approaches, and giving examples of practical applications. Advanced multigrid topics, such as the use of algebraic multigrid methods, and th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

1998
MARK HARMAN

SUMMARY Program slicing is an automatic program abstraction technique whose many applications include software maintenance, re{engineering and comprehension, all of which rely crucially upon the precision of the slicing algorithm used. When slicing is applied to maintenance problems, the programs to be sliced are typically legacy systems, often written in older, `unstructured' programming style...

1995
D. P. Young C. C. Ashcraft R. G. Melvin M. B. Bieterman W. P. Hu F. T. Johnson S. S. Samant W. D. Gropp L. C. McInnes E. J. Nielsen R. W. Walters W. K. Anderson J. H. Bramble J. E. Pasciak

Ordering and incomplete factorization issues for matrices arising from the TRANAIR CFD code. A locally reened rectangular grid nite element method: Application to computational uid dynamics and computational physics. A comparison of domain decomposition techniques for elliptic partial diierential equations and their parallel implementation. Inexact Newton's method solutions to the incompressibl...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید