نتایج جستجو برای: green belt
تعداد نتایج: 157117 فیلتر نتایج به سال:
In the past decade the applicability of belt-drives has been extended significantly due to their increased reliability. With automotive engines it is now common to join a large number of belt-drives into a single, long belt-drive with several tensioner pulleys. However, these belt-drives can exhibit complex dynamic behaviors; therefore it is very important to predict the dynamics response of su...
OBJECTIVE Many modern cars have seat belt reminders (SBRs) using loud and clear sound and light signals. These systems have developed over the last few years. This study investigates how these modern systems influence the seat belt use in real-life traffic in built-up areas in some European cities. METHODS The data were collected by field observations in major cities in six European countries...
Maine upgraded its seat belt law to primary enforcement on September 20, 2007. Belt observations during the day and night were conducted along with awareness surveys in state licensing offices. Both daytime and nighttime observed belt use increased in the months following implementation of the law (daytime 77-84%; night 69-81%). Although daytime belt use was generally higher, nighttime belt use...
INTRODUCTION Seat belt use reduces the risk of injuries and fatalities among motor vehicle occupants in a crash, but belt use in rear seating positions is consistently lower than front seating positions. Knowledge is limited concerning factors associated with seat belt use among adult rear seat passengers. METHODS Data from the 2012 ConsumerStyles survey were used to calculate weighted percen...
A laboratory study of posture and belt fit was conducted with 46 men and 51 women, 61% of whom were age 60 years or older and 32% age 70 years or older. In addition, 28% of the 97 participants were obese, defined as body mass index ≥ 30 kg/m^2. A mockup of a passenger vehicle driver's station was created and five belt anchorage configurations were produced by moving the buckle, outboard-upper (...
This paper proposed the DEA unexpected output model to measure green ecological efficiency of 13 cities in Hanjiang River Ecological Economic Belt from 2003 2018, analyze their temporal and spatial evolution characteristics, further factors affecting through Tobit model. The study demonstrates that, on whole, fails achieve effectiveness; From perspective time evolution, although overall economi...
It is of great practical significance to explore the green development path regional economy and environment. In this paper, Yangtze River Economic Belt in China was selected as research objects, entropy method coupling coordination degree model were used calculate analyse ecological economic changes degree. The results show that condition ecology are on rise, overall developing rapidly. Althou...
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