Results 11 to 20 of about 1,270,697 (149)
Understanding trait impressions from faces
British Journal of Psychology, Volume 113, Issue 4, Page 1056-1078, November 2022., 2022 Abstract Impressions from faces are made remarkably quickly and they can underpin behaviour in a wide variety of social contexts. Over the last decade many studies have sought to trace the links between facial cues and social perception and behaviour.
Clare A. M. Sutherland, Andrew W. Young
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Conservation planning on China's borders with Myanmar, Laos, and Vietnam
Conservation Biology, Volume 35, Issue 6, Page 1797-1808, December 2021., 2021 Abstract Transboundary conservation is playing an increasingly important role in maintaining ecosystem integrity and halting biodiversity loss caused by anthropogenic activities. However, lack of information on species distributions in transboundary regions and understanding of the threats in these areas impairs conservation.
Lin Wang +9 more
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Journal of Advanced Nursing, Volume 77, Issue 3, Page 1546-1555, March 2021., 2021 Abstract Aims Determine sex‐ and age‐associated psychophysical and neurophysiological differences in the processing of pain across the adult lifespan. Design Preliminary, exploratory, cross‐sectional study. Methods Using psychophysics (to measure intensity and unpleasantness) and functional magnetic resonance imaging blood oxygenation level dependent ...
Sebastian W. Atalla +8 more
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Key n‐Gram Extractions and Analyses of Different Registers Based on Attention Network
Journal of Applied Mathematics, Volume 2021, Issue 1, 2021., 2021 Key n -gram extraction can be seen as extracting n‐grams which can distinguish different registers. Keyword (as n = 1, 1‐gram is the keyword) extraction models are generally carried out from two aspects, the feature extraction and the model design.
Haiyan Wu +5 more
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, 2019 对聚乙烯醇缩丁醛（PVB）进行热氧老化试验,采用三种表征方法,从化学结构变化的角度对PVB的热氧老化机理进行研究。研究结果表明:PVB的抗热氧老化性能较差,其羟基、羰基、缩丁醛基均对热敏感。老化前期PVB主要发生降解,首先是在热的作用下,羟基氧化、酯基分解、缩醛环受热开环生成烷氧自由基,然后生成酮、醛,生成的自由基可以诱导分子链断裂并夺取PVB中活泼的氢原子进而又生成自由基。老化后期PVB老化反应以交联为主。热氧老化1d即生成醛,羟基、酯羰基开始减少,老化2 d生成酮,缩醛环老化6 d急剧减少 ...
邹友思 +4 more
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Gaoya dianqi, 2022 电力设备中的密封材料在湿热环境中容易因老化而性能下降，由此导致的密封失效会严重影响电力设备的安全稳定运行。为研究湿热环境下密封材料的老化特性，文中选取油封和气封常用的丁腈橡胶、氟橡胶、三元乙丙橡胶进行湿热老化实验。对老化过程中密封材料的力学性能变化进行测试和分析，并利用傅里叶红外光谱、热分析仪、扫描电镜等工具对未老化和湿热老化后的密封材料进行了分析。通过试验得出结论：丁腈橡胶在湿热老化中出现填料的迁移挥发，氟橡胶、三元乙丙橡胶在湿热环境中则以吸湿增重为主；通过压缩永久变形率的变化 ...
杜钢 +4 more
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, 2014 目的考察老化态度在工作记忆老化中的作用。方法分别使用横断数据和干预数据分析老化态度对工作记忆老化的影响模式。对43名75~95岁城市养老院老老年人实施数字工作记忆广度和老化态度测验。随机选取20名被试者作为干预组接受工作记忆训练。结果积极的内隐老化态度与较大的数字工作记忆广度关系密切。工作记忆训练取得中度效果(ES=0.59);但内隐与外显老化态度得分与工作记忆干预收益相关均不显著。结论老化态度在工作记忆老化中的作用可能更多地表现为对固有工作记忆能力的保护。
彭华茂, 彭华, 尹述飞, 茂文静
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, 2019 文中对顺丁橡胶进行热氧老化研究,采用核磁共振氢谱、傅里叶变换衰减全反射红外光谱、紫外-可见光吸收光谱法3种谱学法对老化产物进行表征。追踪顺丁橡胶在老化过程中化学结构的变化,进而探究其老化机理。结果表明,顺丁橡胶的抗热氧老化能力较差,在120℃老化0.5 d时,其结构即发生明显变化,烯烃含量明显下降,生成醇及醛酮化合物,老化15 d时顺丁橡胶双键α-H已反应约97%。热氧老化反应机理为双键α-H先发生氧化形成过氧化羟基,进而氧化成醇及醛酮化合物,最终降解生成末端丙烯醛,同时双键发生自由基加成反应 ...
邹友思 +4 more
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Journal of Advanced Nursing, Volume 76, Issue 8, Page 1977-1987, August 2020., 2020 Abstract Aim To synthesize what is known about elder abuse and relationship factors associated with abuse between caregivers and older people with memory disorders at home. Background Concerns about abuse in the caring relationship between older people with memory disorders and family caregivers have increased.
Tarja Välimäki +2 more
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Dianci bileiqi, 2020 由于长期运行在湿热的气候环境下,近年来我国南方地区复合绝缘子异常发热、击穿断裂等故障时有发生,严重威胁了电网的安全稳定运行。为了研究复合绝缘子硅橡胶伞套的湿热老化特性,首先对高温硫化（High Temperature Vulcanization,HTV）硅橡胶进行湿热老化实验,然后利用扫描电镜、红外光谱、热重分析、介电谱和热刺激电流测试等分析手段对湿热老化和运行老化样品进行微观分析,结果表明:湿热的联合作用能够显著加速HTV硅橡胶的老化进程,随着湿热老化时间的增加,样品的表面微观形貌、化学基团、热解性能、
曾磊磊 +9 more
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