present study is an extension of earlier work carried out on two-lane two way roads in the two provinces of pakistan i.e. n-25, n-55 and n-5 regarding the measure of operating speed and development of operating speed prediction models. curved sections of two-lane rural highways are the main location of run-off road accidents. in addition to that the road alignment having combination of geometri...

Recently, Fan et al. proposed a novel e-cash scheme which allows a user to recover the e-cash he lost. They claimed their e-cash possesses properties of anonymity, unlinkability (i.e. untraceability), bank-off-line payment, doublespending detection, and anonymity revocation. The ecash untraceability is greatly related to users’ privacy and indicates that no one including the issuer bank can lin...

vehicle crashes are amongst the major causes of mortality and results in losses of lives and properties. alarge number of the vehicle crashes occur on rural roads. accidents become more noteworthy in two-laneroads due to going and coming traffic. therefore, prediction of crashes and their causes are considerablyimportant to reduce the number and severity of the accidents. the safety index is a ...

To my parents iv Acknowledgments Professor Gerd Wechsung, my advisor, has been the most influential and decisive person regarding my scientific career. He not only nurtured my pleasure in mathematics when I was an undergraduate student but also introduced me to the joy and challenge of doing research. I very much appreciate his inspiring and enthusiastic way of creating and formalizing ideas an...

As plug-in electric vehicles become more widespread, their charging needs to be coordinated, in order to ensure that capacity constraints are not exceeded. This is becoming particularly critical as new fast-charging technologies are being developed that place additional burden on local transformers. To address this problem, we propose a novel online mechanism in which agents representing vehicl...

A new operational perspective on fundamental concepts related to customers, service, and value differs from servicedominant logic in its approach to service systems, value creation, value co-creation, service interactions, value facilitation, and value constellations. This perspective leads to two new tools for supporting service system design: 1) A “value blueprint” uses a swimlane representat...

Sir,—I refer to the recent review by Phillips, Daborn and Hatch [1]. Between 1991 and 1993 the Department of Anaesthetics in Newcastle examined the problem of preoperative fasting intervals for children presenting for routine surgery. An initial audit revealed that many children were undergoing prolonged fasts before anaesthesia. After reviewing the literature [2], 8 clear fluid fast of 2 h was...

Lane 1. control jejunal extract; lane 2, A; lane 3, precursor; lane 4. HLe(a-b-); lane 5, Led; lane 6, lacto-N-tetraose; lane 7, lacto-N-fucopentaose I; lane 8,lacto-N-fucopentaose 11; lane 9, lacto-N-difucohexaose I; lane 10, lacto-N-difucohexaose 11; lane I I , lacto-difucotetraose; lane 12. lacto-N-neotetraose; lane 13. 2-fucosyl-lactose; lane 14, 3-fucosyl-lactose. Lanes 2-5 contain ovarian...