Results 91 to 100 of about 19,410 (171)

闸板防喷器承压件在线监测装置的研制

open access: yesShiyou jixie, 2012
鉴于目前国内还没有对防喷器运行状态进行在线监测的仪器或装置,为确保防喷器运行状态安全,研制了闸板防喷器承压件在线监测装置。该装置是通过安装在闸板防喷器腔体内部及壳体上的传感器,监测其内部工作压力、油路开关压力、内部温度和关键部位形变参数,实现了对闸板防喷器在出厂前、井控车间和钻井现场全过程监管。还能对各种超规范工作环境及超安全极限进行报警,提高了现场闸板防喷器运行的可靠性。试验及应用结果表明,该装置能满足井控车间各种试验的数据监测及意外着火情况下数据保存的要求,提高了防喷器安全管理水平。
周强   +5 more
doaj  

水利水电工程施工中的灌浆施工技术

open access: yesRenmin Zhujiang
研究水利水电工程中灌浆施工技术,分析其在确保大坝防渗性与稳定性中的应用与成效。通过对某水利水电工程的实际案例进行分析,结合灌浆材料选择、钻孔施工、灌浆过程、封孔及质量控制等技术环节,提出了具体的施工方案。试验与监控数据表明:采用双液灌浆法和科学的质量控制措施,所有灌浆孔位的渗透系数均达到设计标准,防渗效果显著。合理的灌浆施工技术和严格的质量控制能显著提升工程的防渗性能与长期稳定性,为水利水电工程的安全运行提供有力保障。
陈升
doaj  

[Construction of an evaluation indicator system for standardized prevention and control of type 1 diabetes mellitus]. [PDF]

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

[Association of public health and social measures with the effectiveness of COVID-19 epidemic control]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Zong H   +5 more
europepmc   +1 more source

[Expert consensus on the diagnosis, treatment, and prevention of neonatal dengue, chikungunya, and Zika virus infections (2025)]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Perinatal Group   +2 more
europepmc   +1 more source

[Risks, mechanisms, and prevention strategies for cerebrovascular diseases in lunar astronauts under deep]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Tang L   +7 more
europepmc   +1 more source

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