Results 111 to 120 of about 8,751 (164)

廻龙河健康评价及保护对策研究

Renmin Zhujiang
为科学评估新兴江一级支流廻龙河的健康状况，分析其生态保护与管理的关键问题，为南方中小河流生态修复、长效管理流域可持续发展提供理论与实践依据，以河湖健康评价为核心技术手段，构建了包含“盆”“水”、生物及社会服务功能4个准则层、共计11项指标的评价体系，系统性地评估了廻龙河的健康状态。评价结果显示：廻龙河健康评估指标综合赋分为68.37分，为Ⅲ类河湖（亚健康状态）。“盆”准则层赋分为64.85分，“水”准则层赋分为75.76分，生物准则层赋分为66.40分，社会服务功能准则层赋分为64.65分 ...
钟志云, 刘亚军, 张海发
doaj  

基于状态和风险评估的老旧变压器安全经济性管理分析

Gaoya dianqi, 2012
笔者主要对广西电网运行15年及以上变压器进行了安全经济性分析,提出了变压器状态评价、风险评估及经济性分析辅助决策的算法和模型。通过运用变压器状态评价和风险评估技术,分别从安全性和经济性的角度对变压器大修、改造或更换所能产生的效果进行综合分析,模拟技改评估结果,提供变压器未来最佳更换时期,实现对老旧变压器的最优化管理。
陈立, 郭丽娟, 邓雨荣
doaj  

基于突变理论的断路器运行状态模糊综合评判方法

Gaoya dianqi, 2007
根据目前国内外高压断路器的检测现状,以及高压断路器状态评估方法,应用突变理论,对高压断路器的复杂系统进行多层目标分解,建立事故潜势数学表达式,来反映故障发生的本质特征和机理,对断路器状态进行模糊综合分析与评判,为高压断路器的运行状况综合评价提出了一种新思路。
陈伟根, 吴娅, 刘强
doaj  

[Aesthetic goals of hypospadias repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tang Y.
europepmc   +1 more source

[Multilevel Analysis of Value Alignment With Medical Care and Prevention Integration Among Family Doctors and Health Status of Chronic Disease Patients: The Mediating Role of Team Cohesion]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Pan Y, Zhang K, Huang Y, Qing H, Tang S.
europepmc   +1 more source

[Development and validation of a risk prediction model for cognitive impairment in rural elderly Chinese populations: evidence from the CHARLS study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Wang F, Li W, Shang X, Li F.
europepmc   +1 more source

[Design and validation of a multimodal model integrating text and imaging data for intelligent assessment of psychological stress in college students]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xie H, Hu C, Liang G, Han H, Huang M, Feng Q.   +5 more
europepmc   +1 more source

[Comparative study on accuracy of three imaging methods in diagnosis of subacromial impingement syndrome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zi L, Jin H, Zhu J, Zhang G, Tong Y, Chen S, Shao W, Tang X.   +7 more
europepmc   +1 more source

[Expert consensus on clinical randomized controlled trial design and evaluation methods for bone grafting or substitute materials in alveolar bone defects]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Liao X, Xue Y, Zheng X, Wang E, Pan J, Zou D, Zhao J, Han B, Liu C, Hua H, Liang X, Shang S, Wang W, Liu S, Wang H, Wang P, Feng B, Ju J, Zhang L, Hu K.   +19 more
europepmc   +1 more source

[Application of soft tissue balance combined with medial displacement calcaneal osteotomy for progressive collapsing foot deformity]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ye G, Mai H, Zhang L, Su B, Zeng G, Huang H.   +5 more
europepmc   +1 more source