搜索结果: 1-15 共查到“gasoline,”相关记录30条 . 查询时间(0.062 秒)
Cutting the Cost of Ethanol,Other Biofuels and Gasoline
Cutting the Cost of Ethanol Biofuels Gasoline
2017/7/24
Biofuels like the ethanol in U.S. gasoline could get cheaper thanks to experts at Rutgers University-New Brunswick and Michigan State University.They’ve demonstrated how to design and g...
We investigate the divergence between these results and find that a virtually all of
the difference can be explained by the higher level of temporal and spatial aggregation. Since
our baseline...
Distributional and Efficiency Impacts of Increased US Gasoline Taxes
Distributional and Efficiency Impacts Increased US Gasoline Taxes
2015/7/17
We examine the impacts of increased US gasoline taxes in a model that links the markets for new, used, and scrapped vehicles and recognizes the considerable heterogeneity among households and cars. Ho...
Modeling of Flash Boiling Flows in Injectors with Gasoline-Ethanol Fuel Blends
Flash Boiling Flows Injectors Gasoline-Ethanol Fuel Blends
2014/10/24
Flash boiling may be defined as the finite-rate mechanism that governs phase change in a high temperature liquid that is depressurized below its vapor pressure. This is a transient and complicated phe...
Ozone levels drop 20 percent with switch from ethanol to gasoline
Ozone levels drop 20 percent with switch from ethanol to gasoline
2014/5/13
Choice at the pump. When residents of São Paulo chose gasoline over ethanol to fuel their vehicles, levels of ozone actually decreased, according to a Northwestern study.
Value of Time: Speeding Behavior and Gasoline Prices
value of time speeding gasoline price
2012/10/23
Do drivers reduce speeds when gasoline prices are high? Previous research investigating this energy conservation hypothesis produced mixed results. We take a fresh look at the data and estimate a sign...
Methyl Halide to Olefins and Gasoline over Zeolites and SAPO Catalysts: A New Route of MTO and MTG（图）
methyl halide hydrocarbons zeolite SAPO-34 reaction mechanism
2013/10/9
Rational and efficient conversion of methane to more useful higher hydrocarbons is one of the most important topics of natural gas utilization. Although methane activation and its conversion to valuab...
Epidemiology of Gasoline Burn Injuries in Tehran,Iran
Epidemiology Gasoline Burn Injuries Tehran
2015/9/22
Gasoline burn is one of the major causes of thermal burns even in the developed countries. Lack of understanding on explosive nature of gasoline has resulted into its inappropriate and unsafe use. In ...
An Estimation of U.S. Gasoline Demand: A Smooth Time-Varying Cointegration Approach
Gasoline demand Time-varying coefficient Cointegration Canonical coin-tegration regression Error-correction model deadweight loss
2011/4/2
In this paper the U.S. gasoline demand from 1976 to 2008 is estimated using a time-varying cointegrating regression.
Air Pollutant Emission Abatement using Application of Various Ethanol-gasoline Blends in High-mileage Vehicles
Accumulated mileage passenger cars Criteria pollutant Volatile organic compound Air toxics
2016/3/28
The possibility of using ethanol-gasoline blends as fuel for vehicles as air quality management tools has been raised. In
this study, two passenger cars with different accumulated mileage, i.e., low-...
Short-run and long-run elasticities of gasoline demand in Mauritius: an ARDL bounds test approach
gasoline demand co integration ARDL bounds test elasticities
2011/6/1
An Autoregressive Distributed Lag (ARDL) cointegration framework is used to examine the short-run and long-run characteristics of gasoline demand in the transport sector in Mauritius.
Decrease in Ambient Air Lead Concentrations in Varna, Bulgaria,Associated with the Introduction of Unleaded Gasoline
air lead Bulgaria environmental monitoring gasoline policy
2010/12/22
An examination of ambient air lead monitoring data was used to demonstrate success of banning the import and use of leaded gasoline in Bulgaria. From 1996–2007 air lead levels in Varna, the third larg...
混氢对稀燃汽油机怠速性能的影响试验（Effect of Hydrogen Enrichment on the Performance of a Lean-burn Gasoline Engine at Idle）
汽油机 氢气 稀燃 怠速
2010/12/29
在一台安装了氢气电控喷射系统的汽油机上，通过调整喷氢脉宽，研究了氢气占进气体积分数为3%时混氢对稀燃汽油机怠速燃烧与排放性能的影响。试验结果表明，混氢后发动机指示热效率提高；火焰发展期与快速燃烧持续期缩短；过量空气系数为1.3时，平均指示有效压力的循环变动系数由原机的33.9%降低至混氢后的13.7%；稀燃条件下，进气混氢有利于改善汽油机怠速时的HC、CO与NOx排放。
Application of positive matrix factorization to on-road measurements for source apportionment of diesel- and gasoline-powered vehicle emissions in Mexico City
positive matrix factorization on-road measurements source apportionment diesel- and gasoline-powered vehicle emissions Mexico City
2010/8/12
The goal of this research is to quantify diesel- and gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements captured by a mobile laboratory...
汽油机HCCI燃烧过渡过程控制策略（Transient Operation Strategy of Gasoline HCCI Engine）
HCCI燃烧 过渡工况 对称性原则
2009/12/28
利用可变气门机构使部分残余废气留在缸内，是实现汽油机HCCI燃烧的切实可行的方法，然而多气门参数的调节又给燃烧控制增加了难度。本文通过试验，研究了全可变气门机构中4个控制变量对汽油机HCCI燃烧过程的影响，并对过渡过程中发动机负荷相对于各控制变量的动态响应时间进行了比较。研究发现，实现HCCI燃烧过渡过程的快速响应，应当采用适当的控制参数的耦合策略。试验结果表明，进、排气门相位的对称性原则和气门升...