Results 11 to 20 of about 6,958 (130)
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang +9 more
wiley +1 more source
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang +4 more
wiley +1 more source
人工智能技术Morphogo系统在骨髓细胞形态学检查的临床应用
骨髓各系细胞形态学检查是临床检验的重要项目,通常用于某些造血系统或非造血系统疾病的诊断,具有重要的临床应用价值。随着现代医学技术的快速发展以及细胞遗传学、免疫学、分子生物学等技术的普遍应用,为血液病的精准诊断和治疗提供了多种技术手段,但是细胞形态学镜检仍然是血液病诊断中最基础的检查方法和金标准。传统的骨髓细胞形态学镜检存在诸多弊端,
杜忠华 +4 more
doaj
甲壳动物精子学研究概况Ⅰ精子的形态与结构王艺磊1,2)张子平3)李少菁2)(集美大学水产学院养殖系1)厦门361021)(厦门大学海洋学系2)厦门361005)(香港城市大学生物与化学系3)九龙香港)关键词甲壳动物精子形态结构甲壳纲是整个动物界中...福建省自然科学基金 ...
张子平, 李少菁, 王艺磊
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ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang +9 more
wiley +1 more source
接地系统是风电机组防雷设计保护的重要部分,接地网的几何形状关乎雷击冲击特性。传统等间距接地网遭受雷击后产生巨大的接触电压,严重危害机组的正常运转,而利用优化算法求解最优压缩比构建不等间距接地网能有效降低接触电压。文中提出基于混沌动态权重因子和非线性收敛因子的优化鲸鱼算法(FWOA),求取最优压缩比,解决传统粒子群算法(PSO)早熟和寻优精度低等缺陷,在ATP-EMTP中搭建集桨叶、塔筒、电缆、接地网为一体的风机全局波阻抗模型,考虑火花效应和增设垂直导体对暂态电位的影响的基础上 ...
张萍 +4 more
doaj
甲壳动物精子学研究概况Ⅱ.精子发生与精子的生化组成 [PDF]
甲壳动物精子学研究概况Ⅱ.精子发生与精子的生化组成王艺磊1,2)张子平3)李少菁2)(集美大学水产学院养殖系1)厦门361021)(厦门大学海洋学系2)厦门361005)(香港城市大学生物与化学系3)九龙香港)关键词甲壳动物精子发生生化组成在前文阐...福建省自然科学基金 ...
张子平, 李少菁, 王艺磊
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ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
wiley +1 more source
Study on Genetic Basis of Hybridization between Haliotis sieboldii Reeve and Haliotis discus hannai Ino [PDF]
杂交是目前水产生物育种中应用广泛、行之有效的育种途径之一。以培育一个或数个生长迅速、抗逆性强的鲍养殖新品种为主要目的,本研究利用西氏鲍(HaliotissieboldiiReeve)和皱纹盘鲍(HaliotisdiscushannaiIno)为材料,开展二者间的杂交工作,查清影响西氏鲍与皱纹盘鲍杂交受精率的主要因素,并借助常规染色体分析技术、AFLP、SSR和线粒体DNA分子标记技术,分别从形态学、细胞学以及分子生物学水平上对杂交F1的遗传本质进行分析,确认了西氏鲍与皱纹盘鲍的杂交系实质性杂交 ...
骆轩
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