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Department of Electrical & Computer Engineering
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Department of Mechanical and Mechatronics Engineering
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Department of Chemical Engineering
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    ABSTRACT: This paper presents the results of a study funded by Transport Canada to investigate the safety implications of mandated truck speed limiters. The study adopted a microscopic simulation approach that was applied to a number of maximum speed control strategies, including 105 km/h. The sensitivity of safety performance with respect to changes in geometric and traffic scenarios was investigated. The study found that truck speed limiters produced positive safety gains for different assumed volumes and percentages of trucks and different compliance levels. Under certain conditions, such as high volumes and high percentage of trucks, speed limiters produced a reduction in safety.
    Transportation Research Record Journal of the Transportation Research Board 01/2096; 2096(2096):65-75. DOI:10.3141/2096-09
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    ABSTRACT: Background: The novel influenza A(H7N9) virus has caused 2013 spring and 2013-2014 winter waves of human infections since its first emergence in China in March 2013. Exposure to live poultry is a risk factor for H7N9 infection. Public psychobehavioral responses often change during progression of an epidemic. Methods: We conducted population-based surveys in southern China to examine human exposure to live poultry, and population psychological response and behavioral changes in the two waves. In Guangzhou, an urban area of Guangdong province, we collected data using telephone surveys with random digit dialing in May-June 2013 and again in December 2013 to January 2014. In Zijin county, a rural area of the same province, we used door-to-door surveys under a stratified sampling design in July 2013 and again in December 2013 to January 2014. All responses were weighted by age and sex to the respective adult populations. Findings: Around half of the urban respondents (53.8%) reported having visited LPMs in the previous year in the first survey, around double that reported in the second survey (27.7%). In the rural surveys, around half of the participants reported raising backyard poultry in the past year in the first survey, increasing to 83.2% participants in the second survey. One third of urban subjects supported the permanent closure of LPMs in the first and second surveys, and factors associated with support for closure included female sex, higher level of worry towards H7N9, and worry induced by a hypothetical influenza-like illness. Conclusions: Our study indicated high human exposure to live poultry and low support for permanent closure of markets in both urban and rural residents regardless of increased worry during the epidemic.
    PLoS ONE 09/2015; 10(9):e0137831. DOI:10.1371/journal.pone.0137831
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    ABSTRACT: In the first part of this work, thallium lanthanide tellurides with composition Tl9LnTe6 (Ln = La, Ce, Pr, Nd, Sm, Gd, Tb) have been prepared and their high temperature electrical and thermal transport properties investigated. Nearly single phase samples were obtained. Rietveld refinement results showed that Tl9CeTe6 had an exceptionally small unit cell volume of 1033 Å3. The electrical conductivity and thermal conductivity increased across the lanthanide series from La to Tb. On the other hand, the Seebeck coefficient values decreased with Ln varying from La to Tb. Tl9SmTe6 or Tl9GdTe6 constituted an exception, as the Seebeck coefficient of Tl9SmTe6 was smaller than that of Tl9GdTe6. Tl9LaTe6 has the largest figure-of-merit of this series.
    Journal of Alloys and Compounds 05/2015; 630. DOI:10.1016/j.jallcom.2015.01.025


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Top publications last week by reads

Optometry and Vision Science 04/1999; 76(4):198-211. DOI:10.1097/00006324-199904000-00023
208 Reads
Journal of Consulting Psychology 09/1960; 24(4):349-54. DOI:10.1037/h0047358
92 Reads

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