Results 121 to 130 of about 85,000 (343)
Issues of adaptation of European automobile emission standards in Ukraine
Технічна інженеріяThe article is devoted to the analysis of adaptation of European environmental standards for automobile emissions in Ukraine. Modern approaches to the rationing and control of automobile exhaust gases in the European Union countries are considered and ...
V.M. Ivasenko, I.V. Primisky
doaj +1 more source
Changing Features of the Automobile Industry in Asia:Comparison of Production, Trade and Market Structure in Selected Countries [PDF]
The global automotive industry, increasingly characterized by global mergers and relocation of production centers to emerging developing economies, is in the grips of a global price-war. The industry is subject to imperfect competition which has resulted
Biswajit Nag +2 more
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Advanced Materials, EarlyView.We develop a hydrogel scaffold with controlled substrate stiffness and ligand functionalization for cell culture. Stiff substrates presenting CD3/CD28/CD2 ligands induce 2000‐fold expansion of T cells; this is 68% greater than the clinical standard (Dynabeads) and the first hydrogel capable of large‐scale expansion. Although expanding at a lower yield,
Niroshan Anandasivam +5 more
wiley +1 more source
Nanoparticles and cars : analysis of potential sources [PDF]
, 2012 Urban health is potentially affected by particle emissions. The potential toxicity of nanoparticles is heavily debated and there is an enormous global increase in research activity in this field.
Groneberg, Jan David Alexander +5 more
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Advanced Materials, EarlyView.Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
The evolution of car power, weight and top speed during the last twenty years in Belgium: a consideration for future policies [PDF]
, 2009 Traffic is one of the main causes of the most serious environmental problems worldwide. Accidents, photochemical air pollution, climate change, air quality and noise levels are some of these factors.
Allaert, Georges +4 more
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Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics
Advanced Materials, EarlyView.This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang +13 more
wiley +1 more source
Applied SciencesThis study presents the effects of piston bowl size on the characteristics of a four-stroke single-cylinder diesel engine, which is considered in relation to changes in factors such as fuel injection pressure and turbocharger pressure.
Thin Quynh Nguyen, Andrey Y. Dunin
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Environmental Change and Hedonic Cost Functions for Automobiles [PDF]
This paper focuses on how changes in the economic and regulatory environment have affected production costs and product characteristics in the automobile industry. We estimate cost functions characteristics.
Ariel Pakes, Samuel Kortum, Steven Berry
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