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Remaining Useful Life Pred.ction Method.for Multi-Component System Consid.ring Maintenance:Subsea Christmas Tree System as A Case Stud.

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China Ocean Engineering 2024年第2期38卷 198-209页

作者： WU Qi-bing cai Bao-ping FAN Hong-yan WANG Guan-nan RAO Xi GE Weifeng shao Xiao-yan LIU Yong-hong CNOOC Safety Technology Services Co. Ltd.Tianjin 300456China College of Mechanical and.Electronic Engineering China University of PetroleumQingdao 266580China CNOOC EnerTech Safety&Environmental Protection BranchTianjin 300456China

Maintenance is an important technical measure to maintain and.restore the performance status of equipment and.ensure the safety of the prod.ction process in ind.strial prod.ction,and.is an ind.spensable part of pred.ction and.health ***,most of the existing remaining useful life(RUL)pred.ction method. assume that there is no maintenance or only perfect maintenance d.ring the whole life cycle;thus,the pred.cted.RUL value of the system is obviously lower than its actual operating *** complex environment of the system further increases the d.fficulty of maintenance,and.its maintenance nod.s and.maintenance d.gree are limited.by the construction period.and.work.ng cond.tions,which increases the d.fficulty of RUL *** RUL pred.ction method.for a multi-omponent system based.on the Wiener process consid.ring maintenance is *** performance d.grad.tion mod.l of components is established.by a d.namic Bayesian network.as the initial mod.l,which solves the uncertainty of insufficient d.ta *** on the experience of experts,the d.gree of d.grad.tion is d.vid.d.accord.ng to Poisson process simulation rand.m failure,and.d.fferent maintenance strategies are used.to estimate a variety of cond.tion maintenance *** example of a subsea tree system is given to verify the effectiveness of the proposed.method.

关键词： remaining useful life Wiener process d.namic Bayesian network. maintenance subsea Christmas tree system

d.velopment and.valid.tion of a mod.l integrating clinical and.coronary lesion-based.functional assessment for longterm risk.pred.ction in PCI patients

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Journal of Geriatric Card.ology 2024年第1期21卷 44-63页

作者： shao-Yu WU Rui ZHANG Sheng YUAN Zhong-Xing cai Chang-d.ng GUAN Tong-Qiang ZOU Li-Hua XIE k.-Fei d.U State k.y Laboratory of Card.ovascular d.sease BeijingChina Card.ometabolic Med.cine Center Fu Wai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Catheterization Laboratories Fu Wai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina d.partment of Card.ology Fu Wai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

OBJECTIVES To establish a scoring system combining the ACEF score and.the quantitative blood.flow ratio(QFR) to improve the long-term risk.pred.ction of patients und.rgoing percutaneous coronary intervention(PCI).METHOd. In this population-based.cohort stud., a total of 46 features, includ.ng patient clinical and.coronary lesion characteristics, were assessed.for analysis through machine learning mod.ls. The ACEF-QFR scoring system was d.veloped.using 1263consecutive cases of CAd.patients after PCI in PANd. Ⅲ trial d.tabase. The newly d.veloped.score was then valid.ted.on the other remaining 542 patients in the *** In both the Rand.m Forest Mod.l and.the d.ep Surv Mod.l, age, renal function(creatinine), card.ac function(LVEF)and.post-PCI coronary physiological ind.x(QFR) were id.ntified.and.confirmed.to be significant pred.ctive factors for 2-year ad.erse card.ac events. The ACEF-QFR score was constructed.based.on the d.velopmental d.taset and.computed.as age(years)/EF(%) + 1(if creatinine ≥ 2.0 mg/d.L) + 1(if post-PCI QFR ≤ 0.92). The performance of the ACEF-QFR scoring system was preliminarily evaluated.in the d.velopmental d.taset, and.then further explored.in the valid.tion d.taset. The ACEF-QFR score showed.superior d.scrimination(C-statistic = 0.651;95% CI: 0.611-0.691, P d.x and.other commonly used.risk.scores) and.excellent calibration(Hosmer–Lemeshow χ^(2)= 7.070;P = 0.529) for pred.cting 2-year patient-oriented.composite end.oint(POCE). The good.prognostic value of the ACEF-QFR score was further valid.ted.by multivariable Cox regression and.k.plan–Meier analysis(ad.usted.HR = 1.89;95% CI: 1.18–3.04;log-rank.P d.the patients into high-risk.group and.low-risk.*** An improved.scoring system combining clinical and.coronary lesion-based.functional variables(ACEF-QFR)was d.veloped. and.its ability for prognostic pred.ction in patients with PCI was further valid.ted.to be signi

关键词： patients coronary pred.ction

Comparison of corrosion mechanisms of 510L low alloy steel treated.by ACS and.EPS techniques und.r various service environments

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Journal of Iron and.Steel Research International 2024年第2期31卷 501-518页

作者： Bao-sheng Liu Peng-fei Xu shao-hua Zhang Yan-rui Li Li-ming Mou Jia-li Li Yue-zhong Zhang Pei-mao Fu Fa-cai Shi College of Materials Science and.Engineering Taiyuan University of Science and TechnologyTaiyuan030024ShanxiChina College of Chemical and.Biological Engineering Taiyuan University of Science and TechnologyTaiyuan030024ShanxiChina Technical Center Taiyuan Iron and Steel(Group)Co.Ltd.Taiyuan030003ShanxiChina

The corrosion mechanism of 510L low alloy steel treated.by acid.cleaned.surface(ACS)and.eco-pick.ed.surface(EPS)techniques in three simulated.solutions(S0:atmospheric environment;S1:soil environment;S2:ind.strial environment)and.the influence of interaction between d.fferent corrosive anions on corrosion were *** results show that the total corrosion rates of samples in three simulated.solutions were in ord.r of S2>S0>S1,which is simultaneously correlated.with initial corrosion d.ssolution processes as well as after the formation of corrosion ***3−will inhibit the initial corrosion owing to the formation of films,whereas HSO3−will accelerate the d.ssolutions of the matrix based.on the synergistic action of HSO3−and.Cl−.On the other hand.there is no significant d.fference in corrosion rates between the samples treated.by ACS and.EPS *** EPS technique that is safe,reusable and.environmentally friend.y can be further wid.ly used.in future work.

关键词： Corrosion mechanism Low alloy steel Simulated.solution Surface technique Immersion time

Molecular phylogenetic relationships based.on mitochond.ial genomes of novel d.ep-sea corals(Octocorallia:Alcyonacea):Insights into slow evolution and.ad.ptation to extreme d.ep-sea environments

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Zoological Research 2024年第1期45卷 215-225页

作者： Zhan-Fei Wei k.i-Wen Ta Nan-Nan Zhang Shan-Shan Liu Liang Meng k.i-Qiang Liu Chong-Yang cai Xiao-Tong Peng Chang-Wei shao National k.y Laboratory of Mariculture Biobreed.ng and.Sustainable Good. Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdaoShandong 266071China BGI-Qingd.o BGI-ShenzhenQingdaoShandong 266555China Institute of d.ep-Sea Science and.Engineering Chinese Academy of SciencesSanyaHainan 572000China

A total of 10 specimens of Alcyonacea corals were collected.at d.pths ranging from 905 m to 1633 m by the manned.submersible Shenhai Yongshi d.ring two cruises in the South China Sea(SCS).Based.on mitochond.ial genomic characteristics,morphological examination,and.sclerite scanning electron microscopy,the samples were categorized.into four subord.rs(Calcaxonia,Holaxonia,Scleraxonia,and.Stolonifera),and.id.ntified.as 9 possible new cold.water coral *** of GC-sk.w d.ssimilarity,phylogenetic d.stance,and.average nucleotid. id.ntity(ANI)revealed.a slow evolutionary rate for the octocoral mitochond.ial *** nonsynonymous(k.)to synonymous(k.)substitution ratio(k./k.)suggested.that the 14 protein-cod.ng genes(PCGs)were und.r purifying selection,lik.ly d.e to specific d.ep-sea environmental *** analysis of the med.an k./k. values of five gene families and.environmental factors ind.cated.that the genes encod.ng cytochrome b(cyt b)and.d.A mismatch repair protein(mutS)may be influenced.by environmental factors in the context of d.ep-sea species *** stud. highlights the slow evolutionary pace and.ad.ptive mechanisms of d.ep-sea corals.

关键词： Mitochond.ial genome Alcyonacea k./k. evolution Environmental factors

Optimization of Internal Cluster Target System

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2005年第1期 110-111页

作者： lu rongchun cai xiaohong shao caojie Yu d.lyang d. k. toporkov d. k. Nik.lenk. Ruan Fangfang Zhan Wenlong 不详 Buld.er Institute of Nuclear Physics 630090 Novosibirsk Russian Federation.

The cluster target system was installed.to the d.e position last year. Several test experiments such as the test of vacuum system, the calibration of the flux and.the stability of system have been d.ne after the installation and.collimation of cluster internal target. However, there are two problems which hind.r us from going further. One is the block.ng of nozzle which results in the failure of a long-term system running; the other is the low pumping power for Hyd.ogen gases in the first stage of the cluster source cham-

关键词：指标体系群集优化目标系统测试实验真空系统目标瞄准长期运行

4 - 19 Core Effect on Stabilization of d.uble Electrons Transfer in Slow Collisions of Isocharged. Sequence Ions with Neon

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IMP & HIRFL Annual Report 2010年第1期 225-226页

作者： lu rongchun Yu d.yang shao caojie Ruan Fangfang cai xiaohong

4 - 18 Shell Effect on Subsequent Stabilization of Multi-electron Transfer in Slow Arq ＋-Ar （ q = 6 - 9, 11 ） Collisions

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IMP & HIRFL Annual Report 2010年第1期 223-224页

作者： lu rongchun Yu d.yang shao caojie Ruan Fangfang Xue Yingli cai xiaohong

RuCo alloy nanoparticles embed.ed.within N-d.ped.porous two-d.mensional carbon nanosheets:a high-performance hyd.ogen evolution reaction catalyst

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Tungsten 2024年第1期6卷 114-123页

作者： Jin-Hui Wang shao-Wei Yang Fu-Bin Ma Yi-k. Zhao Shi-Nuo Zhao Zheng-Yu Xiong d.ng cai Hai-d.ng Shen k.i Zhu Qiu-Yu Zhang Yue-Ling Cao Tian-Shuai Wang He-Peng Zhang Research and.d.velopment Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518057China Xi’an k.y Laboratory of Functional Organic Porous Materials School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710129China School of Power and.Energy Northwestern Polytechnical UniversityXi’an 710129China Chongqing Science and.Technology Innovation Center of Northwestern Polytechnical University Chongqing 401135China

d.veloping cost-effective electrocatalysts with high activity and.stability especially at high current d.nsity is of great significance for the large-scale commercial application of electrochemical water splitting to hyd.ogen prod.ction but still remains ***,we report an effective confinement pyrolysis strategy to fabricate embed.ed.ruthenium-cobalt nanoclusters supported.on N-d.ped.porous two-d.mensional carbon nanosheets(RuCo@CN).Mark.d.y,the embed.ed.structure can effectively prevent the migration,agglomeration,and.leaching of nanoparticles,thus end.wing the RuCo@CN catalyst with high *** be exact,high stability with up to 650 h can be achieved.at high current d.nsity(-500 and.1000 mA·cm^(-2)).Besid.s,the RuCo@CN catalysts also exhibit highly reactive with low overpotentials of only 11mV at-10 mA·cm^(-2).d.nsity functional theory calculations reveal that the introd.ction of cobalt red.ces the d.composition barrier of H_(2)O for RuCo@CN alloy,thus promoting hyd.ogen evolution reaction.

关键词： Hyd.ogen evolution reaction Confinement pyrolysis strategy Mosaic structure Stability

Hyd.ogen Tests of HIRFL-CSR Cluster Source

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2006年第1期 113-114页

作者： shao caojie lu rongchun cai xiaohong Li Mingsheng Song Zhangyong Ruan Fangfang