Results 41 to 50 of about 348 (111)
Shuitu Baochi Xuebao, 1995 影响泥石流流域产沙的自然因素众多，在地面因素中起重要作用的主要有地形地貌特征、地表覆盖类型、地质背景条件、不良地质现象等。本文在地理信息系统技术支持下，应用模糊数学的理论和方法建立了泥石注域产沙分级评价模型，该模型能准确客观地反映流域内不同区域产沙的情况，并能自动编制流域产沙强度分级图，为流域内泥石流松散固体物质储量的计算提供依据。
徐弘
doaj +2 more sources
Zhongguo shiyan zhenduanxue, 2017 目的采用Meta分析方法评价封闭抗体与反复自然流产的相关性。方法通过计算机检索中国知网、万方、维普和Medline数据库,收集1994年4月到2016年8月中国公开发表的所有关于封闭抗体与反复自然流产相关性的病例-对照研究,根据纳入和排除标准筛选文献,提取资料和质量评价,以合并比值比（odds ratio,OR）及其95%CI为效应指标,运用STATA12.0软件,进行Meta分析。结果经严格筛选后共纳入13篇文献,合计反复自然流产组5364例,对照组4774例。经Meta回归分析显示 ...
石瑛 +5 more
doaj
Objective: To investigate the correlation of the gestation period age and the GDM disease rate among the gestational women who are treated in our hospital.
Ge, Yue-ping, Liu, Li, Yan, Shu-ping
core +2 more sources
不同减胎方式对单绒毛膜双羊膜囊双胎临床结局的影响 [PDF]
, 2020 【目的】对比双极脐带电凝减胎术（BCC）与射频消融减胎术（RFA）对单绒毛膜双羊膜囊双胎临床结局的影响。【方法】收集 2009-2019 年间中山大学附属第一医院行妊娠早期超声检查诊断为单绒毛膜双羊膜囊双胎孕妇 53 例作为研究对象。所有孕妇孕期均行选择性减胎术，并在我院规律产检及分娩。回顾性分析统计孕妇基本情况、减胎方式的选择、分娩孕周等相关因素对最终的妊娠结局及新生儿结局产生的影响。数据采用SPSS20.0 软件进行统计学分析。【结果】RFA 组和 BCC 组术后发生下腹紧缩感的比例分别为65.0 ...
戴郁菁 +6 more
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang +7 more
wiley +1 more source
International Journal of Applied Linguistics, Volume 36, Issue 1, Page 714-724, February 2026.ABSTRACT Interlingual translation, as defined by Roman Jakobson, refers to the transfer of meaning between languages. However, this concept has often been conflated with linguistic shifts between distinct cultures and nation‐states. To challenge this misconception, I propose the concept of self‐consumption translation (SCT), a subfield of interlingual ...
Bilin (Belen) Liu
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 近年来,早孕自然流产的发病率有持续上升的趋势,患者有可能发展为复发性流产。早期自然流产是发病原因非常复杂,涉及妇产科学及基础医学许多学科。微炎症状态是指患者无全身或局部显性感染征象,但存在低水平、持续的炎症状态。炎症学说成为产科领域近几年来的研究热点[1 ...
徐又先 +4 more
doaj
Yttrium Addition Co‐Enhances the Plasticity and Corrosion Resistance of TiB2‐Refined Al‐Mg‐Zn Alloys
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT To address the degradation of corrosion resistance induced by Al‐5Ti‐B grain refiner during the strengthening of Al‐Mg‐Zn alloys, this study innovatively employed a rare earth element yttrium (Y) alloying strategy to achieve synergistic enhancement of mechanical strength and corrosion resistance.
Wen‐Tao Qin +9 more
wiley +1 more source
The study on the association between polycyclic aromatic hydrocarbons exposure and adverse pregnancy outcomes and their mechanisms [PDF]
, 2012 目的通过流行病学调查，掌握闽南地区妊娠妇女妊娠结局情况，并探讨多环芳烃（polycyclicaromatichydrocarbons，PAHs）暴露对妊娠结局的影响，结合PAHs代谢酶活性及基因多态性分析，DNA损伤等指标，评价PAHs暴露对胎儿健康的危害。 方法利用问卷形式收集1106例孕妇流行病学资料，以了解环境因素对妊娠妇女妊娠结局的影响。采用气相色谱串联质谱（gaschromatograph-massspectrometer，GC-MS）技术测定206例孕妇外周静脉血、新生儿脐带血中PAHs含量；
钟渊福
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Vanadium oxides are deemed competitive cathode candidates for aqueous zinc‐ion batteries (AZIBs), benefited from their high theoretical capacity and multiple crystalline structures. However, the sluggish reaction kinetics, poor reversibility, and high solubility have hindered the practical application.
Xiaoyu Fan +7 more
wiley +1 more source