Results 101 to 110 of about 288,553 (154)

[Efficacy of thermo-expandable nickel-titanium alloy ureteral stent placement as maintenance therapy for ureteral strictures]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Chen G   +7 more
europepmc   +1 more source

大型原油储罐内壁底板腐蚀机理及防护措施

open access: yes, 2017
大型原油储罐底板腐蚀是影响和决定油罐服役寿命的关键问题。原油本身并不具备强腐蚀性,油品在开采过程中常夹杂一定水和腐蚀性介质,在长期存储过程中"水沉油浮",腐蚀性沉积水在油罐底部聚集,使罐底长期处于沉积水浸没状态。沉积水成分复杂,含有大量氯离子、硫酸盐和厌氧微生物,这些介质使油罐罐底处于强腐蚀环境,对油罐底板产生持续腐蚀。同时,浮顶油罐立柱的冲击和振动、液体紊流和原油压力会加速油罐底板腐蚀失效。详细探讨了油罐罐底的腐蚀机理和失效衍化机制,分析罐底在沉积水环境中的腐蚀形式,包括电化学腐蚀、冲刷腐蚀、堆积腐蚀、
刘栓   +7 more
core  

[Research progress on the manufacturing technology of hollow microneedles]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhou S   +9 more
europepmc   +1 more source

Progress in research and development of biodegradable metallic vascular stents. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Yang Y   +6 more
europepmc   +1 more source

[Research progress on the biological properties of the surface nanocrystals of typical medical metal materials]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2021
Zhou W   +6 more
europepmc   +1 more source

[Establishment of rabbit model of benign circumferential esophageal stricture]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Meng L, Huang Y, Yan X, Wang Y.
europepmc   +1 more source

[Detection of neurofibroma combining radiomics and ensemble learning]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu Y   +6 more
europepmc   +1 more source

[Analysis of the characteristics and changing trends of burn disease burden in the Chinese population based on the GBD 2021 database]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Liang JY   +9 more
europepmc   +1 more source

[Application and research progress of three-dimentional printed porous titanium alloy after tumor resection]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022
Liu P, Gao Q, Lü L, Zhang W, Fan B.
europepmc   +1 more source

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