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Search Results: 1 - 10 of 485 matches for " 赵亮 "
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急速减压状态下液体的突沸现象
赵亮
工程热物理学报 , 1988,
Abstract:
矿井可行性研究报告编制探讨
赵亮
煤炭工程 , 2010,
Abstract: 本文比较分析了国内外矿井可行性研究报告编制的相同和差异,结合国外资本市场对于矿业投资所关注热点和要点分析,指出了国内可行性研究报告编制需要关注的内容。对国内矿业研究和提升风险控制能力以及适应国际化资本市场需求具有有益的指导意义。
基于特征价格模型的沈阳市商品住宅价格指数
赵亮
东北大学学报:自然科学版 , 2015, DOI: 10.3969/j.issn.1005-3026.2015.08.031
Abstract: 为了分析沈阳市商品住宅市场情况,根据国内外编制价格指数的方法,结合沈阳市房地产市场的实际情况,采用特征价格法对沈阳市商品住宅价格指数进行研究.选择16个特征变量,采用半对数模型构建沈阳市商品住宅特征价格模型,并对模型进行检验,确定影响沈阳市商品住宅价格的14个特征变量及相互关系.通过价格指数计算公式,计算出2006年至2013年沈阳市商品住宅特征价格指数,得出沈阳市商品住宅价格增速正在逐年减缓的结论,并对未来市场可能出现的问题提出合理建议.
多相流动电磁波成像测井测量敏感场计算
赵亮
地球物理学报 , 2003,
Abstract: 在多相流动电磁波成像测井研究中,测量敏感场是设计测量仪器和研究图像重建算法的前提工作.本文用数值方法计算多相流动电磁波成像测井测量敏感场.根据测量探头电极阵列的对称性,将三维敏感场问题划分为轴向和横向两个平面问题,然后应用有限元算法求解两个平面电势分布问题,对于不同介质模型,计算各种测量条件下测量区域内电势分布,进而根据电势分布计算测量敏感场.结果表明测量敏感区域为发射电极到测量电极的弧形区域,在发射电极到测量电极的电势梯度线上,测量敏感函数近似于一个指数函数.
深度学习在医学影像中的应用:希望还是陷阱?
赵亮
- , 2018, DOI: 10.16781/j.0258-879x.2018.08.0859
Abstract: 医学影像技术在疾病的检测、诊断和治疗中起着重要作用。由于人类专家经验的不稳定性,机器学习技术有望辅助研究人员和医师以提高影像诊疗的准确性和减少医疗资源的不均衡性。本文系统概述了深度学习技术的一些方法,介绍了医学影像学中的深度学习技术的应用研究,同时讨论了深度学习技术在医学影像中的局限性。
Medical imaging technology plays an important role in the detection, diagnosis and treatment of diseases. Due to the instability of human expert experience, machine learning technology is expected to assist researchers and doctors to improve the accuracy of imaging diagnosis and treatment and reduce the imbalance of medical resources. In this paper, we systematically summarized the methods of deep learning technology, introduced the application of deep learning in medical imaging, and discussed the limitations of deep learning technology in medical imaging
再探一道趣题
赵亮
华南师范大学学报(自然科学版) , 2014,
Abstract:
Behavioral Responses of Two Species Passerine to Predation Risk During Breeding Period
繁殖期两种百灵科鸟类对捕食风险的行为响应

ZHAO Liang,
赵亮

动物学研究 , 2005,
Abstract: Life-history theory predicts that differences in reproductive effort and residual reproductive value among species should result in differences in the level of risk that parents are willing to tolerate to themselves versus their offspring. Here, we tested the prediction that parental investment decisions were correlated with nest sites by comparing risk-taking behaviour in two species of passerines (small skylark Alauda gulgula and horned lark Eremophila alpestris) in alpine meadow, from 2002 to 2004. We experimentally manipulated predation risk by presenting models and measured the willingness of parents to feed nestlings. The results shown: Response of the horned lark to human intrusion was a significantly stronger than the small skylark; Both species responded to predators by decreasing the length of attendance time, reducing the feeding rate and increasing the length of elapsed time; There was significantly difference between the reproductive behaviour in the small skylark and horned lark in the natural condition, whereas, no difference in the predator condition; Males of both species had lower willingness to tolerate risk to themselves than females. Thus, those passerine species responded to predators by reducing investment in current reproduction and increasing probability of future survival. Our experimental results support the above prediction.
横向电动效应作用下微混合的数值模拟
赵亮,刘林华
工程热物理学报 , 2007,
Abstract: 微流体机械系统中电渗流的雷诺数一般都比较低,微通道内的混合主要通过扩散来完成,因此需要较长的距离和时间才能混合均匀。本文在一个二维微通道内施加横向电场,并讨论了不同横向电场强度、微电极对布置情况、壁面zeta电势等因素对微混合的影响。结果表明此方法可以有效地提高混合效率,增加横向电场强度和电极对密度可以明显提高混合效率,较小的zeta电势可以获得更好的混合效果。
双电层交叠时微通道内流动的数值模拟
赵亮,刘林华
工程热物理学报 , 2006,
Abstract: 本文采用有限容积法数值模拟了在电动效应作用下微通道内流体的流动特性。分别采用Poisson方程和Nernst-Planck方程计算电动势和离子浓度分布。结果表明在双电层相互交叠的情况下,微通道内轴向的流动电势先减小后增大,并逐渐趋于定值,从而导致了轴向电动效应不断增强。
电动效应作用下微通道内粒子运动的数值模拟
赵亮,刘林华
工程热物理学报 , 2009,
Abstract: 本文采用有限体积法数值模拟了轴向方波电场和直流电场作用下,具有不同电泳淌度粒子的运动情况.结果表明,在半个方波电场周期内,具有不同电泳淌度的粒子在相同的时间内达到各自的稳定速度,周期变化的方波电场使微粒子在微通道内做往复的运动;在直流电场作用下,两个不同电泳淌度的粒子会在轴向方向上产生位移差.定义从溶液中分离粒子的最短距离与微通道高度的比值为分离效率,数值模拟结果表明,分离效率随横向电场强度和粒子电泳淌度的增加而减小.?
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