32,414 research outputs found

    The Development of an Aerodynamic Body System for the Existing Single Seat Electric Vehicle.

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    The Report goes through the works done by the student before November 2018 for developing of an aerodynamic vehicle body shell, which includes the project background, design features, design outcomes and drawings, conclusion and recommendations

    Cognitive Skills, Non-Cognitive Skills, and the Employment and Wages of Young Adults in Rural China

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    The objective of this paper is to examine whether noncognitive skills explain differences in employment status and hourly wages even after controlling for age, experience, schooling and cognitive skills. Of particular interest is to examine the relative magnitudes of the impacts of the cognitive and noncognitive skills on these labor market outcomes. Data used in this paper come from the Gansu Survey of Children and Families (GSCF), which followed a random sample of 2,000 children in rural areas of Gansu Province who were 9-12 years old in the year 2000. Three waves of surveys were completed in 2000, 2004, and 2007-2009. The GSCF is the first large-scale data collection on child and adolescent cognitive and noncognitive skills in rural China.cognitive skills, noncognitive skills, years of schooling, wage, Gansu, China, International Development, Labor and Human Capital,

    The lin-15 locus encodes two negative regulators of Caenorhabditis elegans vulval development

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    During Caenorhabditis elegans vulval development, an inductive signal from the anchor cell stimulates three of the six vulval precursor cells (VPCs) to adopt vulval rather than nonvulval epidermal fates. Genes necessary for this induction include the lin-3 growth factor, the let-23 receptor tyrosine kinase, and let-60 ras. lin-15 is a negative regulator of this inductive pathway. In lin-15 mutant animals, all six VPCs adopt vulval fates, even in the absence of inductive signal. Previous genetic studies suggested that lin-15 is a complex locus with two independently mutable activities, A and B. We have cloned the lin-15 locus by germline transformation and find that it encodes two nonoverlapping transcripts that are transcribed in the same direction. The downstream transcript encodes the lin-15A function; the upstream transcript encodes the lin-15B function. The predicted lin-15A and lin- 15B proteins are novel and hydrophilic. We have identified a molecular null allele of lin-15 and have used it to analyze the role of lin-15 in the signaling pathway. We find that lin-15 acts upstream of let-23 and in parallel to the inductive signal

    Lensless Imaging by Compressive Sensing

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    In this paper, we propose a lensless compressive imaging architecture. The architecture consists of two components, an aperture assembly and a sensor. No lens is used. The aperture assembly consists of a two dimensional array of aperture elements. The transmittance of each aperture element is independently controllable. The sensor is a single detection element. A compressive sensing matrix is implemented by adjusting the transmittance of the individual aperture elements according to the values of the sensing matrix. The proposed architecture is simple and reliable because no lens is used. The architecture can be used for capturing images of visible and other spectra such as infrared, or millimeter waves, in surveillance applications for detecting anomalies or extracting features such as speed of moving objects. Multiple sensors may be used with a single aperture assembly to capture multi-view images simultaneously. A prototype was built by using a LCD panel and a photoelectric sensor for capturing images of visible spectrum.Comment: Accepted ICIP 2013. 5 Pages, 7 Figures. arXiv admin note: substantial text overlap with arXiv:1302.178
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