نتایج جستجو برای: gap engineering

تعداد نتایج: 397834  

2006
F. F Wu F. L. Zheng F. S. Wen

Transmission planning in a restructured electricity market becomes increasingly complicated. To bridge the gap between economic and engineering considerations, this survey paper suggests a framework to clarify the interactions among various economic and engineering issues by reviewing recent theoretical and practical progress in transmission investment and transmission planning methodology. Thu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی صنایع 1385

در این پایان نامه به تعمیم مسأله عمومی تخصیص generalized assignment problem(gap می پردازیم. یک مسأله np-hard است و عبارت از مسأله تخصیص مجموعه ای از کاذها به مجموعه ای از ماشین ها با صرف حد اقل هزینه است، بگونه ای که هر کار باید تنها به یک ماشین تخصیص داده شود، ولی به هر ماشین که دارای ظرفیت محدودی است، بیش از یک کار می تواند تخصیص داده شود. به لحاظ کاربردی بودن مسأله، مجموعه کارها تنها بیانگر ...

Journal: :Concurrency and Computation: Practice and Experience 2016

2003
José Merseguer Javier Campos

It is not an overstatement to say that the gap between software design and performance evaluation techniques has caused the misuse of the last ones by software engineers. The UML profile for schedulability, performance and time [13] arose from the intention to close both fields, software engineering and performance analysis. Nevertheless the gap remains, since it is difficult for software engin...

2010
Daniel Burkhart Bernd Hamann Georg Umlauf

Finite element methods are used in various areas ranging from mechanical engineering to computer graphics and bio-medical applications. In engineering, a critical point is the gap between CAD and CAE. This gap results from different representations used for geometric design and physical simulation. We present two different approaches for using subdivision solids as the only representation for m...

2011
Ariane Middel Inga Scheler Hans Hagen Daniel Burkhart Bernd Hamann Taimur K. Khan

Finite element methods are used in various areas ranging from mechanical engineering to computer graphics and bio-medical applications. In engineering, a critical point is the gap between CAD and CAE. This gap results from different representations used for geometric design and physical simulation. We present two different approaches for using subdivision solids as the only representation for m...

  In this work, the effects of inner radius and width variation on energy spectrum and persistent current in hexagonal graphene quantum rings with zigzag edges have been studied by using the tight-binding model. Our investigation show that the energy spectra of these rings are grouped into subbands which each one consists of six coupled energy levels that separated by energy gaps. The pattern o...

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