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Simulations using the fuels hydrogen and methane with detailed reaction mechanisms in the gas-phase and on the surface Numerical Modeling of Wall Effects in Lean Combustion.

Формат:      Страниц 68
     мягкая обложка
Johan A.    
Книга по Требованию    
2008 руб
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I the near wall boundary layer, transport of momentum, heat and mass are done in a manner that may affect the hundreds of elementary chemical reaction steps. The results presented in this work may be used by designers of combustors and microchannel reactors,where calculations cannot give accurate results unless the effects of the walls are accounted for. The wall effects must be analyzed with respect to the complicated nature of the combustion process. The simulations have been performed with the program CRESLAF, a part of the CHEMKIN software. In this work numerical simulations have been conducted to study different aspects of wall effects in the combustion of lean, premixed, hydrogen and methane fuel/air mixtures. In addition, the wall may be chemically active and lead to termination of radical chains, or through catalytic reactions that may emit products from the wall and retard the homogeneous reactions. Better understanding of combustion near walls has a significant interest in lean combustion using large excess of air, for example in the internal combustion engine concept Homogeneous Charge Combustion Ignition (HCCI).
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Набор детской складной мебели "Первоклашка".
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Кружка-хамелеон "Бодрое утро".
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Раздел: Кружки

Система HLA и инфекционные заболевания
Антигены I класса, впервые найденные на лейкоцитах (отсюда термин HLA), экспрессируются (синтезируются и выводятся на клеточную поверхность) почти во всех тканях (продукт четвертого локуса I класса, HLA-G, экспрессируется только в трофобласте). Молекулы I класса играют важную роль при распознавании антигена цитотоксическими -клетками (CD8). Молекулы II класса кодируются тремя или более генными локусами (DR, DP и DQ). HLA-DR антигены известны также как Ia антигены по аналогии с антигенами иммунного ответа у мышей. В последнее время особое внимание исследователей привлекает область HLA-D, так как, по-видимому, именно эта область включает гены иммунного ответа человека (IR - гены), и, возможно, супрессивный ген (IS- ген). В 6 хромосоме между генами I и II классов находятся гены, кодирующие молекулы III класса (которые включают факторы комплемента 2, 4a и 4b) и цитокины F Reily R.J., Pollac M.S. e al. Use of HLA ge o ipicaly differe do ors i bo e marrow ra spla a io - ra spla . Proc., 1979, vol. 11, №1, p.219-224 8.Тананов А.Т. HLA и болезни крови.

Numerical Modeling of Coastal Aquifers. Numerical Strategies to Check Ingress of Sea Water in Coastal Aquifers Книга по Требованию SURESH U.
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The schemes are based on a simple centred approach, therefore they are certainly suitable for engineering purposes, often requiring simple numerical tools which can be easily used without addressing the mathematical details of the hyperbolic system of equations under consideration.
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In this work a new model is introduced for HCCI and PPCI combustion regimes that can be used in engineering.
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Numerical Analysis of Flow-Field-Flow Fractionation. Theory, Mathematical Modeling, Computer Simulation and Case Studies Книга по Требованию Selen ?.
One of the branches of NaBiPa project is dedicated to study and investigate the Field-Flow Fractionation (FFF) process.
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Tea Catechins Inhibit Amyloid Protein Aggregation. Their Beneficial Effects in Huntington' s and Parkinson' s Disease Models Preventing Toxic Tangles: Книга по Требованию
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Analytical modeling of Fiber Metal Laminate stiffened by bonded straps. The effect of external stiffening elements on the fatigue crack growth in Fiber Metal Laminates Книга по Требованию Riccardo R.
The main concept in this work is that the effect of external stiffening elements can be described with the superimposition principle, independently of the geometrical disposition of the stiffeners.
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Therefore, it is important to develop analytical methodologies to investigate and mitigate the effects of these electrical feedbacks on the performance of PSOFC systems.
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Reliance on a few varieties renders crops growing highly vulnerable to pest and disease outbreaks.
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Blast Mitigation of Masonry Walls by Various Retrofit Technologies. Numerical Simulation of Strengthened Unreinforced Masonry Walls by New Retrofitting Technologies for Blast Loading Книга по Требованию Yu S.
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A modelled experiment was performed in the laboratory using riverbed sand of varying porosities following a standard procedure.
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