نتایج جستجو برای: and gasoline

تعداد نتایج: 16828450  

2013
Samuel Arey Philip M. Gschwend

Only ten years after the increased addition of methyl-tert-butylether (MTBE) to U.S. gasolines, nationwide MTBE contamination of thousands of drinking water supply wells has been widely documented, reflecting enormous environmental and economic costs. Due to its abundance in gasoline, high aqueous solubility, and slow degradation rate in aquifers, MTBE has migrated in significant quantities fro...

Journal: :Accident; analysis and prevention 2011
Guangqing Chi Xuan Zhou Timothy E McClure Paul A Gilbert Arthur G Cosby Li Zhang Angela A Robertson David Levinson

This study investigates the relationship between changing gasoline prices and drunk-driving crashes. Specifically, we examine the effects of gasoline prices on drunk-driving crashes in Mississippi by several crash types and demographic groups at the monthly level from 2004 to 2008, a period experiencing great fluctuation in gasoline prices. An exploratory visualization by graphs shows that high...

2008
Michael A. Morrisey David C. Grabowski

Fatal motor vehicle crashes per capita remained relatively stable over the 1990s, in spite of new traffic safety laws and vehicle innovations. One explanation for this stability is that the price of gasoline declined, which resulted in more vehicle miles traveled and potentially more fatalities. By using 1983-2000 monthly gasoline price and fatality panel data and fixed effects specifications, ...

2011
Arthur G. Cosby

The impact of gasoline price changes on traffic safety has received increasing attention in empirical studies. However, this important relationship has not been explained within a conceptual or theoretical framework. In this study, we examine this relationship within a time geography framework in an attempt to understand the effect of time-varying fluctuations in gasoline prices and their relat...

2008
Mark Z. Jacobson

Energy required for vehicles Low case High case A1(S1) 2007 onroad vehicle miles traveled in the U.S. (mi/yr) 3.237E+12 3.237E+12 A2 (S2) Total onroad vehicle fleet mileage (mpg) 1.711E+01 1.711E+01 A3=A1/A2 Gallons of fuel (gas+diesel) used (gal/yr) 1.892E+11 1.892E+11 A4 Lower heating value gasoline (MJ/kg) 4.400E+01 4.400E+01 A5 Gasoline density (kg/m3) 7.500E+02 7.500E+02 A6 Gallons per cub...

Afshani, Alireza , Amini, Malihe , Dehghan, Reyhane , nejad koorki, Farhad , Rahimi, Mehranghiz,

Gasoline fuel vehicles cause emissions of airborne pollutants that are poisonous and have a deleterious effect on human health and the environment while natural gas fuels have less harmful effects on the environment and humans due to their greater environmental compatibility. The propose of this study is to investigate the concentration of CO, HC, O2 in the exhaust outlet of gas and diesel cars...

Journal: :American journal of health promotion : AJHP 2014
Bisakha Sen Nitish Patidar Sheikilya Thomas

PURPOSE Existing literature shows negative relationships between gasoline price and motor vehicle crashes, particularly among teens. This paper extends that literature by evaluating the relationship between gasoline price and self-reported risky driving among teens. DESIGN Observational study using multivariate empirical analysis, using pooled data from the Youth Risk Behavior Survey, waves 2...

2011
Yu Cheng Liu C. Thomas Avedisian

0010-2180/$ see front matter 2011 The Combust doi:10.1016/j.combustflame.2011.08.015 ⇑ Corresponding author. Fax: +1 607 255 1222. E-mail address: [email protected] (C.T. Avedisian). The droplet burning characteristics of binary blends of iso-octane, n-heptane and toluene were studied in an ambience that minimizes external convection and promotes spherical droplet flames. The results are compare...

2012
Aussadavut Dumrongsiri

Westudy a dual-channel supply chain under decentralized setting in which manufacturer sells to retailer and to customers directly usingan online channel. A customer chooses the purchase-channel based on price and service quality. Also, to buy product from the retail store, the customer incurs a transportation cost influenced by the fluctuating gasoline cost. Both companies are under the revenue...

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