نتایج جستجو برای: aftertreatment technique
تعداد نتایج: 611611 فیلتر نتایج به سال:
در این پایان نامه روش های ارائه شده توسط هررو1 و تم2 در سال 2011 در مقاله ای با عنوان using the gsvd and the lifthing technique to find {p,k+1} reflexive and anti-reflexive solutions of axb=c برای پیدا کردن جواب های انعکاسی و پاد-انعکاسی {p,k+?} معادله ماتریسی axb=c بیان شده اند را بررسی می کنیم. در پایان از این روش ها برای پیدا کردن جواب های {p,?k} انعکاسی معادله ی ماتریسی axb+cx^* e=f استف...
Abstract The safe operation of power system is a pretty important part for the whole society and it influencing everyone’s daily life. As biggest company, State Grid Corporation China has to ensure normal grid. However, can be affected by several issues such as all kinds extreme weather, aging equipment, with rapid development national economy industry, electricity loads are becoming complicate...
Worldwide emission standards are extending their requirements to cover engine operation under extreme ambient conditions and fill the gap between type-approval real driving conditions. The new boundaries affect performance raw emissions as well efficiency of exhaust aftertreatment systems. This study evaluates impact high altitude low temperature on light-off conversion an oxidation catalyst. r...
The real driving emission (RDE) testing for certification of vehicles is performed in conditions that are well defined legislation. For emissions inventories and research, the influences some extended on an interesting issue. In present work, examples RDE results from two common passenger cars with gasoline diesel propulsion given. varying were “winter/summer”, “mild/aggressive”, “higher altitu...
Abstract. We studied ice-nucleating abilities of particulate emissions from a modern heavy-duty diesel engine using three different types fuel. The polydisperse particle were sampled during operation and introduced to continuous-flow diffusion chamber (CFDC) instrument at constant relative humidity RHwater=110 %, while the temperature was ramped between ?43 ?32 ?C (T scan). tested fuels EN 590 ...
Kinetic modeling of NH3 Selective Catalytic Reduction (NH3-SCR) NOx in Cu-chabazite washcoated monolithic reactors has recently become an important task for design, control and calibration heavy-duty engine aftertreatment systems. Development detailed accurate kinetic models rely on the correct simulation NO2 storage at different conditions. Here, schemes adsorption desorption were developed co...
We evaluated the chromosomal aberration (CA) frequencies in the peripheral blood lymphocytes of ten female patients, age average 43.7 +/- 12.9, with thyroid cancer (TC) who had been exposed to 100-200 mCi therapeutic doses of 131I. The blood samples were obtained before-treatment and at 2 and 24 h after-treatment. Radiation was measured in the samples by means of dysprosium-activated calcium su...
Passenger cars are the primary means of transportation in Europe. Over the past decade, a great deal of attention has therefore been paid to reducing their emissions. This has resulted in notable technical progress, leading to unprecedentedly low exhaust emissions. In the meantime, emissions from motorcycles have been ignored due to their subordinate role in traffic. Even though the motorcycle ...
In this paper we demonstrate the potential of combining electric hybridization with a dual-fuel natural gas-Diesel engine. We show that carbon dioxide emissions can be reduced to 43 gram per kilometer with a subcompact car on the New European Driving Cycle (NEDC). The vehicle is operated in charge-sustaining mode, which means that all energy is provided by the fuel. The result is obtained by ha...
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