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, 2007 科学评价城乡关系的发展程度和发展状况是城乡关系研究中需要解决的关键问题。本文以城乡关系的实质为着眼点,对城乡协调度的内涵进行了界定,并以此为基础设计了城乡协调度评价指标体系,初步构建了城乡协调度评价模型,这是从系统的角度科学评价城乡关系所做的初步尝试 ...
张竟竟, 陈正江, 杨德刚
core
[Establishment and evaluation of rat and mouse models with addictive behaviors]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanLu M, An B, Ding Q, Zhang X.
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[Advances and challenges in new technologies for imaging evaluation of liver fibrosis]. [PDF]
Zhonghua Gan Zang Bing Za ZhiGe QC, Lu LG.
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[Discussion on the design approach and results evaluation key points of repeated exposure systemic toxicity tests for absorbable medical devices]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiFan C +5 more
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[Formation mechanisms, construction, and performance evaluation of self-assembled nanoparticles derived from natural products]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanCheng S +6 more
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, 2013 本发明公开了一种评价热障涂层体系可靠性的方法和装置，该装置包括平板试样、试验槽、可控热源，平板试样一面上具有多条带筋冷却槽道，其相对面上设置有热障涂层，平板试样具有冷却槽道的一面密封、固定在试验槽上，其冷却槽道容置在试验槽中，沿冷却槽道方向的试验槽两端设置有进、出液管，可控热源对平板试样的热障涂层表面加热，并通过热电偶测温系统和高温应变片测试系统检测平板试样的温度和应变。本发明的评价热障涂层体系的装置和方法，把热障涂层和基体结构作为一个体系，通过考虑结构效应对热障涂层及界面变形 ...
肖京华 +4 more
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Shuitu Baochi Xuebao目的探究评价指标的不同筛选方法和机器学习模型对崩岗易发性评价结果的影响。方法以石城县崩岗为例，通过不筛选、地理探测器（GD）筛选和多重共线性（VIF）筛选等方法构建评价指标体系，采用随机森林（RF）和多层感知机（MLP）模型，开展不同评价指标和评价模型对崩岗易发性的适宜性研究。结果1）GD筛选的崩岗易发性评价结果优于VIF筛选评价结果，采用指标累计贡献率q值为90%的GD筛选的结果与不筛选的结果基本相同；2）RF模型对崩岗易发性的预测效果优于MLP模型，其中不筛选、GD筛选 ...
郭飞 +7 more
doaj
[Non-invasive evaluation and prediction of portal hypertension: focusing on disease progression and outcome]. [PDF]
Zhonghua Gan Zang Bing Za ZhiXu PS, Wang MC, Chen JJ, Wang HY.
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