Vehicle transportation

Xem 1-20 trên 97 kết quả Vehicle transportation
  • Understanding greenhouse gas sources, emissions, measurements, and management is essential for capture, utilization, reduction, and storage of greenhouse gas, which plays a crucial role in issues such as global warming and climate change. Taking advantage of the authors' experience in greenhouse gases, this book discusses an overview of recently developed techniques, methods, and strategies: - A comprehensive source investigation of greenhouse gases that are emitted from hydrocarbon reservoirs, vehicle transportation, agricultural landscapes, farms, non-cattle confined buildings, and so on.

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  • The Workshop on Energy and Transportation took place on January 7-9, 2002, in Washington, DC. This workshop was the second in a series of workshops that comprise the study Challenges in the Chemical Sciences in the 21st Century. The purpose of this study was to carry out a survey of the current status of the chemical sciences, including chemistry and chemical engineering, and its interfaces with other disciplines such as mechanical engineering, physics, materials science, and the biological sciences.

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  • In order to assess the current and future transport situation from the economic and financial point of view, vehicle operating cost (VOC) was estimated by type of vehicle. The vehicle classification is consistent with that adopted in the traffic count surveys conducted in the Study. 

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  • The rapid development of information technology and communications has created an opportunity to improve the efficiency of road traffic by using Intelligent Transportation System (ITS). The combination between transport participants, vehicles and road traffic infrastructure through using roadside equipments and traffic control centers takes a part in improving the efficiency of the transportation system and quality of transportation services.

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  • Our society is awash in “machine intelligence” of various kinds, from smart thermostats in our homes, to expert systems and design aids in our workplaces, to jet aircraft landing safely in treacherous weather under computer control. Over the last century, we have witnessed more and more of the “drudgery” of daily living being replaced by devices such as washing machines, microwave ovens, motorized transport, and the enhanced productivity and convenience offered by personal computers and information technology....

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  • Choose one of the following transportation vehicles and explain why you think it has changed people’s lives. Automobiles, bicycles, airplanes. Use specific reasons and examples to support your answer.

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  • ....CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 © 2010 by Taylor and Francis Group, LLC CRC Press is an imprint of Taylor & Francis Group, an Informa business No claim to original U.S. Government works Printed in the United States of America on acid-free paper 10 9 8 7 6 5 4 3 2 1 International Standard Book Number: 978-1-4200-5398-2 (Hardback) This book contains information obtained from authentic and highly regarded sources.

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  • Internal combustion engines have experienced an enjoyed monopoly for almost a century as power sources of road transport vehicles. But, in the same period, vehicle ownership and mileages increased to a level that the resulting petroleum based fuel consumption, urban air pollutants and green house gas emissions (the challenging triad) have became great concern especially for past a few decades.

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  • The rapid development of science and technology leads to improvement of human life, but also creating of new crisis situation. Mankind is confronted with risks that have not been seen before in human history. Global worming is one of the typical examples. Although ma‐ jority of the experts that are studying climate changes claim that global worming is a fact and that it is caused by human, there are also scientists that doubt those statements. One of the main problems related to critical situations is – mater of responsibility.

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  • Road traffic is one of the major consumers of energy, particularly in western industrialized countries, and globally it exhibits the highest growth rate in energy consumption of all sectors. In the Organisation for Economic Cooperation and Development (OECD) countries, more than 33% of the total final energy consumption goes into the transportation sector, amounting to more than 11% of the world’s total primary energy consumed.

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  • The definition of comfort in a motor vehicle is at once complex and subjective, changing not only with time (cars considered comfortable just twenty years ago are nowadays considered unsatisfactory) but also from user to user. The same user may change his appraisal depending on circumstances and his psychophysical state. But comfort remains an increasingly important parameter in customer choice and strongly competitive factor among manufacturers.

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  • Urban transport system is crucial for economic and social development of our society as it meets challenging mobility requirements of urban agglomerations. The requirements are challenging because road transport, which is the most problematic transport mode, is dominating the urban transport activities. The main problems with the road transport are that the infrastructure is not generally suffi cient for whole traffi c conditions and the vehicles are powered by internal combustion engines that require fossil fuels to burn and emit pollutant emissions during their normal operations....

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  • Tham khảo tài liệu 'english language tests-intermediate level's archivereal life: vehicles and transportation (3)', ngoại ngữ, chứng chỉ a, b, c phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • As already stated, a road vehicle on pneumatic tires cannot maintain a given trajectory under the effect of external perturbations unless managed by some control device, which is usually a human driver. Its stability solely involves such state variables as the sideslip angle β and the yaw velocity r. In the case of two-wheeled vehicles the capsize motion is intrinsically unstable forcing the driver not only to control the trajectory but stabilize the vehicle. A possible scheme of the vehicle-driver system is shown in Fig. 27.1.

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  • Two-axle vehicles without trailer Low speed or kinematic steering is, as already stated, defined as the motion of a wheeled vehicle determined by pure rolling1 of the wheels. The velocities of the centres of all the wheels lie in their midplane, that is the sideslip angles αi are vanishingly small. In these conditions, the wheels cannot exert any cornering force to balance the centrifugal force due to the curvature of the path. Kinematic steering is possible only if the velocity is vanishingly small.

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  • Investigations of historic yields are therefore mostly concerned with homo- genous goods such as commodities, for which indices are available. These show that certain real assets can achieve higher yields than investments in equities or bonds. A comparison of the average historic yields on raw materials over the last 10 years (2002 to 2012) shows that investments in commodity futures have achieved double-digit annual returns (see Fig. 15).

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  • An increase in the price of gasoline will increase the usage costs for all automobiles, although the cost-per-mile increase will be greater for less fuel-ecient cars. If there were suciently attractive substitutes for cars as a whole, we might expect across-the-board increases in usage costs to decrease demand for all car models. For what is probably the vast majority of car owners, however, abandoning car ownership entirely and instead relying completely on other forms of transportation is unlikely to be a realistic choice.

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  • A vehicle on elastic suspensions may be modelled as a system made by a certain number of rigid bodies connected with each other by mechanisms of various kinds and by a set of massless springs and dampers simulating the suspensions. A vehicle with four wheels can be modelled as a system with 10 degrees of freedom, six for the body and one for each wheel. This holds for any type of suspension, if the motion of the wheels due to the compliance of the system constraining the motion of the suspensions (longitudinal and transversal compliance of the suspensions) is neglected....

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  • Tham khảo tài liệu 'english language tests-intermediate level's archivereal life: vehicles and transportation (4)', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Image recognition and classification is one of the most actively pursued areas in the broad field of imaging sciences and engineering. The reason is evident: the ability to replace human visual capabilities with a machine is very important and there are diverse applications. The main idea is to inspect an image scene by processing data obtained from sensors.

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