Results 41 to 50 of about 25,822 (190)
Erosion corrosion behavior of AISI 304/316 stainless steel [PDF]
, 2016 304/316不锈钢以其良好的抗腐蚀性能和机械性能而得到广泛应用，尤其是在核电行业。然而，在其应用中存在着冲蚀磨损，腐蚀磨损，应力腐蚀开裂和高温氧化等问题。本文研究了304/316不锈钢两相射流冲蚀磨损行为，在NaCl、HCl和NaOH中的腐蚀磨损行为，在实验室模拟压水堆条件下的应力腐蚀开裂和高温氧化腐蚀行为。 （1）本文通过两相高速射流对304/316不锈钢的冲蚀实验，通过失重法和材料表面形貌、结构和成分微观分析，研究材料冲蚀磨损失效过程以及冲蚀机理分析 ...
周芳
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Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2018 康复医学教学是理论与实践并重的教学模式,不同于纯理论教学课程,对同学的实践动手能力和模仿能力要求较高。目前以PPT为主的课堂教学对理论教学能够完成教学目的和要求,而对实践性较高的康复实践显然不能满足,PBL教学能够调动学员的积极性,主动参与到教学当中,但对于课时相对紧凑的课种来说,真正实施起来较为困难[1,2]。微课融合了视频等要素,不但能够课堂展示 ...
康治臣 +7 more
doaj
, 2016 A geothermal well in Ganzi was chosen for the study. To provide a reference for the design and construc?tion of a geothermal plant, power generation techniques were selected and the thermodynamic process was calculat?ed based on cold and heat source ...
卜宪标 +3 more
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Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, EarlyView.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2013 单层球面和柱面网壳结构的承载能力已有不少研究,但双层球面网壳的力学特性和失效机理的研究很少涉及。基于此,系统地研究了4种不同矢跨比双层凯威特球面网壳的失效机理和破坏过程,考察了多个力学指标来评估网壳的力学性能,如变形能力、总应变能、总弹/塑性应变能和屈服杆件数等。捕捉了4种矢跨比网壳的杆件失效过程和失效机理的差异。计算结论可为双层球面网壳结构的设计提供参考与借鉴。
李会军, 王正中
doaj
Study on Microstructure and properties of melting and casting and hot rolling process of 8079 high precision aluminum foil stock [PDF]
, 2015 本文以8079高精铝箔坯料的工艺流程为主线，结合自身在A公司近20年的工作经验和材料科学理论，采用ICP、Alscan在线测氢、金相显微分析、拉伸试验、TEM、SEM、EDS和离线板形检测仪等现代材料分析测试技术，同时运用SPSS软件对测试数据进行统计分析，研究不同制备工艺对铸造组织、均热组织和热轧形变组织的形成规律，以改善8079高精铝板坯的轧制性能和力学性能，使国内企业早日用8079合金替代1235合金生产高品质的双零铝箔提供应用数据，具有一定的理论和实际应用价值。研究工作及结果如下 ...
吴天华
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A Systematic Scoping Review of Self‐Regulated Learning With AI in Language Education
International Journal of Applied Linguistics, EarlyView.ABSTRACT The rapid development of artificial intelligence (AI) technology has brought new opportunities for second/foreign language (L2) education while also raising concerns about the use of AI tools. This systematic scoping review provides a snapshot of the current state of research situated at the intersection of self‐regulated learning (SRL) and AI
Zheng Zhang, Sihan Zhou, Barry Bai
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2012 诊断学是医学生培养临床思维能力的基础学科,是学生从学校理论学习阶段向医院实践阶段过渡的桥梁和纽带,是学生学习其他临床专业课程的基础课程。综合性、设计性实验是利用实验教学从知识、能力、素质培养着手,与理论课程相结合,组成合理的教学体系。尝试在诊断学教学中开展综合性、设计性实验,取得了较好的教学效果,现报道如下:
李宇
doaj
Preparation andProperties of Fluorescent Gold Nanoclusters Functionalized Silk Biomaterials [PDF]
, 2016 家蚕蚕丝作为天然的蛋白质纤维，具有独特的力学性能、良好的生物相容性和可控的生物降解性，已被作为生物医学理想材料。然而，蚕丝材料作为生物医学材料植入体内后，进行体内的检测和追踪仍是目前一大难点。本研究通过共混荧光金纳米簇和丝素蛋白，制备可用于体内荧光成像的蚕丝材料（3维支架、薄膜、凝胶），为生物材料的体内成像提供了思路。本研究主要内容如下： 冷冻干燥法制备三维多孔荧光丝素蛋白/金簇复合支架。复合支架具有红色荧光，研究发现丝素蛋白/金簇混合溶液的pH会影响金簇的荧光强度，发射峰位和荧光效率 ...
曹丽薇
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