نتایج جستجو برای: shrinking core model

تعداد نتایج: 2281901  

Shrinking the engine has been a great interest for many years. Providing more amount of heat transfer may supply possibilities for size reduction in engine parts specifically the engine water jacket that is of concentration for the present study. Boiling phenomenon, by providing more amounts of heat transfer in comparison with single-phase, provides conditions for size reduction. In this paper ...

2004
Bin Zhang Hongjun Wu Dengguo Feng Feng Bao

In this paper, we analyze the generalized self-shrinking generator newly proposed in [8]. Some properties of this generator are described and an equivalent definition is derived, after which two attacks are developed to evaluate its security. The first attack is an improved clock-guessing attack using short keystream with the filter function (vector G) known. The complexity of this attack is O(...

رضائی زارع, افشین , صنایع پسند, مجید , فرهنگی, شاهرخ , محسنی, حسین ,

Based on the Preisach theory in hysteresis, this paper presents a novel transformer core model. Unlike existing mathematical-based hysteresis models, the proposed model is based on a physically correct hysteresis model and can precisely represent the actual behaviors of magnetic materials. In addition, the experimental results of a ferroresonance test of a Voltage Transformer (VT) are presented...

Due to the decreasing production of nickel and cobalt from sulfide sources, the Ni and Co extraction from the oxide ores (laterites) have become more prevalent. In this research work, the effects of calcination prior to leaching, acid concentration, percent solid, pH, and stirring speed on the nickel and cobalt recoveries from an iron-rich laterite ore sample were investigated using diffe...

Journal: :The Journal of Cell Biology 2007
Hema Bashyam

Text by Hema Bashyam [email protected] Skin-based immunity W hen skin cells are hit by a blast of UV light, they instruct dendritic cells (DCs) to suppress immunity system-wide, say Karin Loser, Stefan Beissert (University of Münster, Münster, Germany), and colleagues. UV has the unusual ability to cause immunosuppression by recruiting T regulatory cells (T regs). UV has thus been used t...

2012
Matteo Fischetti Leo Liberti

Symmetry plays an important role in optimization. The usual approach to cope with symmetry in discrete optimization is to try to eliminate it by introducing artificial symmetry-breaking conditions into the problem, and/or by using an ad-hoc search strategy. In this paper we argue that symmetry is instead a beneficial feature that we should preserve and exploit as much as possible, breaking it o...

2011
Waseem Asghar Azhar Ilyas Joseph Anthony Billo Samir Muzaffar Iqbal

Solid-state nanopores have emerged as useful single-molecule sensors for DNA and proteins. A novel and simple technique for solid-state nanopore fabrication is reported here. The process involves direct thermal heating of 100 to 300 nm nanopores, made by focused ion beam (FIB) milling in free-standing membranes. Direct heating results in shrinking of the silicon dioxide nanopores. The free-stan...

2012
EDWARD C. PECK

Shrinking and swelling play important roles in the utilization and seasoning of wood. The mechanics of shrinking and swelling and the influence of wood structure are discussed. Emphasis is placed on the variability of shrinking and swelling, and the chief reasons for variability. The effects of shrinking and swelling on wood during seasoning and in use are discussed, along with methods of minim...

Journal: :IEEE transactions on image processing : a publication of the IEEE Signal Processing Society 2000
Leen-Kiat Soh Costas Tsatsoulis

This paper defines the restricted growing concept (RGC) fur object separation and provides an algorithmic analysis of its implementations. Our concept decomposes the problem of object separation into two stages. First, separation is achieved by shrinking the objects to their cores while keeping track of their originals as masks. Then the core is grown within the masks obeying the guidelines of ...

2010
Alexander Nadel Vadim Ryvchin

Assignment stack shrinking is a technique that is intended to speed up the performance of modern complete SAT solvers. Shrinking was shown to be efficient in SAT’04 competition winners Jerusat and Chaff. However, existing studies lack the details of the shrinking algorithm. In addition, shrinking’s performance was not tested in conjunction with the most modern techniques. This paper provides a ...

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