Results 41 to 50 of about 26,640,317 (249)
Shiyou jixie, 2014 针对井架整体轮式移运系统设计中存在的不足，设计了可旋转井架轮式移运系统。该系统利用油缸实现拖座与井架的连接及井架与底座的对接；每个轮轴增设了盘式制动装置实现对拖座的制动；增设了旋转功能实现较小转弯路况的转弯。为了实现旋转功能，把与井架产生连接或作用的部分作为一体，把与车桥连接的部分作为一体，这2部分靠面接触支撑井架大的压力，中心设旋转销实现两者的旋转。对旋转销的规格进行了选定，并对接触面进行了设计验证。现场应用结果表明，系统在沙漠路面上移运经历直行、转弯等路况时无任何问题出现，完全满足设计要求。
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye +33 more
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Shiyou jixie, 2014 在油气田压裂等储层改造过程中，高速携砂液流动会使管柱壁面受到冲刷腐蚀影响，造成材料流失，威胁井筒安全。为此，结合数值模拟与喷射式冲蚀试验，分析超级13Cr不锈钢材料受冲刷腐蚀影响规律，利用DPM离散相模型追踪固体颗粒撞击材料表面的速度与角度，为研究不锈钢表面受撞击后的抗腐蚀特性提供流体力学参数。研究结果表明，不锈钢材料在含Cl-纯液相介质中能够生成钝化膜以保护基体材料；超级13Cr材料在流速9 m/s常温条件下流动水介质中，开路电位稳定，材料在高速流动液相中具有较强的抗腐蚀能力 ...
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
wiley +1 more source
Shiyou jixie, 2014 针对深海深层油气资源的勘探开发不断深入，海洋勘探对深海工程装备的勘探井深要求提高的现状，研制了9 000 m自升式海洋井架。该井架采用直立无绷绳、多节套装、自升式、K形结构，自带起升绞盘，安装方便且占地面积小。井架采用小模块设计，每个模块总质量小于17 t，满足海洋平台现场吊装要求。井架本体及关键受力部件采用热喷铝防腐处理及喷涂海洋防腐油漆工艺，满足海洋环境防腐要求。井架载荷试验结果表明，在最大试验载荷6 750 kN时，井架最大应力部位的应力值为148.2 MPa，该部位井架材料屈服强度为325.0 ...
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi +6 more
wiley +1 more source
Shiyou jixie, 2014 以我国南海深水的固定式导管架平台为研究对象，采用SESAM软件的GeniE模块进行了有限元建模，分析了作用在平台上的基本载荷和环境载荷，对平台进行了无初始缺陷和考虑腐蚀条件的极限承载能力分析，同时将3个服役期平台的极限承载能力进行对比。建模时将土壤划分了15层，并采用API规范模拟桩土之间的相互作用力。分析结果表明，当载荷从不同方向作用时，平台的极限承载能力各有差异，载荷从西南、东南、东北和西北4个方向作用时平台的强度储备系数比其他方向小很多；在考虑海水对平台的腐蚀作用后，平台在东、西、南 ...
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FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
针刺研究, 2005 Objective: To explore the relationship among therapeutic effects of moxibustion for treating asthma in summer and autumn and changes of serum nitric oxide(NO) content and pulmonary function.Methods: Sixtyfour athma patients were randomly and evenly ...
陈铭, 郑偶然, 徐维, 卢希玲, 1
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Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
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