Results 21 to 30 of about 19,300 (166)
Study on Vibration Characteristic of Operational Bridge Based on Monitoring Data [PDF]
, 2016 桥梁结构监测系统能够对结构进行实时自动的状态监测，为评价运营桥梁的承载能力、使用功能和安全可靠性提供数据基础。近年来因为缺乏科学监测与管理所引起的桥梁垮塌事故频频发生，因此有必要利用监测数据对重要大桥的结构运营状态进行评估。本文基于厦门天圆大桥结构监测系统的实测数据，对单拱肋中承式梁拱组合桥型的振动特性进行研究，重点包括大桥的模态参数识别与短吊杆疲劳寿命估计两方面。本文主要工作内容如下： 首先，阐述了桥梁结构监测系统与模态分析方法的发展现状，总结了中承式拱桥结构特点与短吊杆疲劳问题 ...
何文朋
core
Serum Uric Acid and Long-term Prognosis in Patients with Acute Myocardial Infarction [PDF]
, 2022 BackgroundIt is still controversial whether or not serum uric acid, a key risk for coronary heart disease, is significantly associated with prognosis of acute myocardial infarction (AMI) .
CHEN Qiang, CHEN Yingzhong, CUI Caiyan, JIANG Xinglin, ZHU Feng, LI Siyi, ZHANG Yumei, YE Tao, CAI Lin
core +1 more source
Conservation Biology, EarlyView.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
, 2000 犯罪统计，是指国家司法机关、统计部门、有关学者定期而又系统地就犯罪现象、犯罪原因、犯罪控制所收集和出版的犯罪资料进行的统计研究。研究犯罪统计，扩大犯罪统计的影响，目的在于为某些犯罪的发生可能性以及有关嫌疑犯和被证实的犯罪情况提供合乎逻辑的准确信息。传统的犯罪统计主要是指描述犯罪现象特征和一元分析。而世上任何事物的形成、变化和发展无一不是受各种因素的影响，而且各种因素间又存在着错综复杂的关系。犯罪心理的形成和犯罪行为的发生绝非由某一因素所致，而是由一系列社会、心理、生理等多种因素相互作用或综合作用所致 ...
卢海
core
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, EarlyView.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2021 目的天冬氨酸转氨酶-血小板比率指数 （APRI）与肝脏纤维化-4指数 （FIB-4）等指标已被证实可用于无创性评估肝纤维化、肝硬化程度，对肝细胞癌 （HCC）患者肝切除术预后评估有较高的准确性。本研究旨在探讨APRI与FIB-4对HCC患者肝切除术后发生肝功能衰竭（PHLF）的预测能力。方法回顾性分析426例在我院接受肝切除术的HCC患者的临床资料。收集患者肝切除术前2周内的实验室数据，计算APRI、FIB-4、Child-Pugh评分。采用受试者工作特征（ROC）曲线确定APRI、FIB-4 ...
林水荣 +7 more
doaj
Evaluating synthetic substitutes to reduce illegal harvesting and support species recovery
Conservation Biology, EarlyView.Abstract Providing synthetic substitutes is a widely promoted strategy to shift consumer demand away from wildlife products derived from threatened species. Yet, there is little evidence on whether product substitution prevents illegal or unsustainable harvesting and contributes to the recovery of threatened populations.
Aditya Shekhar Malgaonkar +17 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2022 目的 构建预测多灶性甲状腺微小乳头状癌(mPTMC)发生颈部淋巴结转移(LNM)的风险预测系统，评价该系统的风险预测效能。方法 收集病理确诊的 mPTMC患者共450例，其中建模组含348例，验证组含102例。对建模组患者的基本信息、超声特征及 ACR评分进行单因素及多因素 Logistic回归分析，获得 mPTMC发生 LNM 的独立危险因素，构建预测 LNM 风险的 Logistic回归方程及评分系统，将验证组的患者资料代入评分系统，以术后病理为金标准，评估模型的预测效能。结果 性别为男性、年龄0 ...
李文惠 +4 more
doaj
Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study
International Journal of Applied Linguistics, EarlyView.ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren +3 more
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT This computational linguistic study analyzes 8743 Rednote posts to examine how sentiment, emotion, and content domain collectively shape social comparison dynamics on social media. We identify four key findings: (1) an emotional gradient, where upward comparison content exhibits the highest sentiment scores and downward comparison the lowest; (
Michelle Mingyue Gu +7 more
wiley +1 more source