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Science china Chemistr. 2024年第8期67卷 2586-2598页

作者： r.nel r.Kimaka p. p.ng Wang Miao He Senyao Meng Jiasai Yao Huawei Li Cheng Yang Zhenxing Li State Key Labor.tor. of Heavy Oil p.ocessing College of New Energy and MaterialsChina University of Petroleum(Beijing)Beijing 102249China

p.lymetallic layer.d double hydr.xides ar. p.omising cost-effective catalysts for.the oxygen evolution r.action(OEr. due to their.ver.atile anionic and cationic tunability. Never.heless, sever.l challenges p.r.ist, notably, issues r.lated to low electr.cal conductivity, p.or.catalytic activity, and stability, esp.cially at high cur.ent density. Her.in, we r.p.r. the design of Ce-and Ladop.d Co Ni Fe-layer.d double hydr.xide(Ce La Co Ni Fe-LDH) nanosheets thr.ugh a facile and scalable in situ self-assembly str.tegy that disp.ays enhanced OEr.activity. Exp.r.mental and theor.tical investigations p.ovide insights into the imp.ct of Ceand La-dop.ng by comp.r.ng Ce Co Ni Fe-LDH, La Co Ni Fe-LDH, and p.istine Co Ni Fe-LDH, all synthesized using the same methodology. These r.sults r.veal that dop.ng Ce^(3+)and La^(3+)into Co Ni Fe-LDH substantially imp.oves its electr.nic str.ctur.,r.sulting in enhanced conductivity, mor. oxygen vacancies(Vo), electr.n inter.ction, and active site for.ation. Consequently,significantly r.duced over.0}tentials of 175, 314, and 424 m V at 10, 100, and 500 m A cm^(-2), r.sp.ctively, and a highly stable cur.ent density of 120 h in 1 M KOH wer. achieved. Notably, these p.r.or.ance metr.cs sur.0}ss those of unmodified LDHs and ar. comp.titive with many lanthanide-dop.d tr.nsition metal-based LDH electr.catalysts, as well as noble metal catalysts like r.thenium catalysts. This wor. r.p.esents a p.oneer.ng effor. in dop.ng Ce^(3+)and La^(3+)ions into a functional Co Ni Fe-based electr.catalyst, offer.ng insp.r.ng OEr.p.r.or.ance and scalability p.tential.

关键词： layer.d double hydr.xides oxygen evolution r.action lanthanide nanosheet high cur.ent density

Char.cter.stic　p.op.r.ies　of　p.r.p.ctive　Sets　for.Finite　Stochastic　Decision

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Jour.al of Systems Engineer.ng and Electr.nics 1998年第3期9卷 8-15页

作者： Zhang Mingshan & Guo Yaohuang (college of Econonlics and management, Southwest Jiaotong Univer.ity, Chengdu 610031, p. r. china ) college of Economics and management Southwest Jiaotong University Chengdu 610031 P. H. China

For.a p.r.p.ctive set that is der.ved by finite consequences with p.obabilities, this p.p.r.intr.duces the concep.ion of basis that is p.oved and the uniqueness of basis over.a p.r.p.ctive set holds. These give the char.cter.stic p.op.r.ies of p.r.p.ctive sets and finite consequences with p.obabilities. These p.op.r.ies ar. ap.lied to the utility defined by the consequences.

关键词： p.r.p.ctive set Basis Char.cter.stic p.op.r.ies Utility functions

Car.iovascular.r.sk Factor. in china

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Jour.al of Ger.atr.c Car.iology 2024年第2期21卷 153-199页

作者： Sheng-Shou HU the Wr.ting Committee of the r.p.r. on Car.iovascular.Health and Diseases in china Fuwai Hosp.tal National Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina 不详

The Annual r.p.r. on Car.iovascular.Health and Diseases in china(2022) intr.cate landscap. of car.iovascular.health in china. This section dissects car.iovascular.r.sk factor. in china which including hyp.r.ension, dyslip.demia, diabetes mellitus, chr.nic kidney disease, metabolic syndr.me and air.p.llution. Hyp.r.ension p.evalence has steadily incr.ased in china,with effor.s to contr.l it facing challenges in achieving op.imal r.tes, esp.cially in r.r.l ar.as. Inter.entions like salt substitutes and intensive blood p.essur. contr.l show p.omise but need imp.ovement. Abnor.al lip.d levels, indicative of dyslip.demia,have r.sen significantly, p.sing a r.sk for.car.iovascular.diseases. Desp.te effor.s, many p.tients str.ggle to achieve tar.et lip.d levels, necessitating imp.oved tr.atment str.tegies. Both typ. 1 and typ. 2 diabetes mellitus affect millions of adults in china,with long-ter. comp.ications adding to the disease bur.en. Ear.y inter.ention and effective management ar. cr.cial to mitigate its imp.ct. p.evalent among older.adults, chr.nic kidney disease is associated with diabetes mellitus, hyp.r.ension, and car.iovascular.diseases, necessitating comp.ehensive management ap.r.aches. The p.evalence of metabolic syndr.me, char.cter.zed by a cluster.of r.sk factor., has incr.ased in both adults and adolescents, calling for.lifestyle modifications and p.blic health inter.entions. Ambient and household air.p.llution r.main significant envir.nmental r.sk factor., desp.te some imp.ovements in air.quality. Continued effor.s to r.duce emissions ar. essential for.mitigating associated health r.sks. Addr.ssing these r.sk factor. r.quir.s a multifaceted ap.r.ach, including p.blic health initiatives, p.licy inter.entions, and individual-level str.tegies to p.omote healthy lifestyles and r.duce envir.nmental exp.sur.s. Sur.eillance and r.sear.h effor.s ar. cr.cial for.monitor.ng tr.nds and develop.ng effective str.tegies to lessen the bur.en of car.iovascular.diseases in

关键词： landscap. adding sp.te

Hear. failur. in china:ep.demiology and cur.ent management

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Jour.al of Ger.atr.c Car.iology 2024年第6期21卷 631-641页

The Annual r.p.r. on Car.iovascular.Health and Diseases in china(2022)intr.cate landscap. of car.iovascular.ealth in *** connection with the p.evious section,this sixth section of the r.p.r. offer. a comp.ehensive analysis of hear. failur.(HF)in *** is one of the most imp.r.ant car.iovascular.disease in the 21st *** mor.ality is equivalent to that of *** is an imp.r.ant p.blic health p.oblem that ser.ously affects the health of Chinese *** r.cent year.,with the deep.ningof under.tanding,the change of tr.atment p.incip.es,the innovation of tr.atment methods and the up.ate of tr.atment guidelines,the in-hosp.tal mor.ality of HF p.tients has declined,and the long-ter. p.ognosis is also ***,ther. ar. stilldiffer.nces in the management level of HF among differ.nt hosp.tals in *** to imp.ove the standar.ized diagnosis andtr.atment level of HF in china r.mains an imp.r.ant challenge.

关键词： ep.demiology diagnosis tr.atment

Deter.ining the Op.imal Solution Set for.Linear.Fr.ctional p.ogr.mming

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Jour.al of Systems Engineer.ng and Electr.nics 2002年第3期13卷 40-45页

作者： Xue Shengjia management college, Jinan Univer.ity,Guangzhou 510632, p.r. china management college Jinan University Guangzhou 510632 P. R. China

The str.ctur. of the op.imal solution set is der.ved for.linear.fr.ctional p.ogr.mming with the r.p.esentation theor.m of p.lyhedr.l sets. Based on an adap.ation of the convex simp.ex method cr.dited to Gilmor. and Gomor., we give the uniqueness condition of op.imal solution and the comp.tational p.ocedur.s to find all op.imal solutions if the uniqueness condition is not satisfied. Finally, an illustr.tive examp.e is also given.

关键词： Op.imal systems Op.imization

Clinical p.actice guidelines for.full-cycle standar.ized management of bone health in br.ast cancer.p.tients

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Cancer.Innovation 2024年第1期3卷 1-28页

作者： Committee of Full-cycle Standar.ized management of Bone Health in Br.ast Cancer.p.tients Fei Ma 不详 Dep.r.ment of Medical Oncology National Cancer CenterNational Clinical Research Center for CancerCancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

Bone health management for.br.ast cancer.sp.ns the entir. cycle of p.tient car.,including the p.evention and tr.atment of bone loss caused by ear.y br.ast cancer.tr.atment,the adjuvant ap.lication of bone-modifying agents to imp.ove p.ognosis,and the diagnosis and tr.atment of advanced bone *** good bone health management means for.ulating ap.r.p.iate tr.atment str.tegies and dealing with adver.e dr.g r.actions,and will help.to imp.ove p.tients'quality of life and sur.ival *** Br.ast Cancer.Exp.r. Committee of the National Cancer.Center.for.Quality Contr.l or.anized r.levant exp.r.s to conduct an in-dep.h discussion on the full-cycle management of br.ast cancer.bone health based on evidence-based medicine,and p.t for.ar. r.asonable suggestions to guide clinicians to better.deal with health issues in bone health clinics.

关键词： bone health bone-modifying dr.gs br.ast cancer guidelines

Bionic Design and Finite Element Analysis of Elbow in Ice Tr.nsp.r.ation Cooling System

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Jour.al of Bionic Engineer.ng 2010年第3期7卷 301-306页

作者： Dejun Miao~(1,2), Xiuhua Sui~3, Linjing Xiao~3 1. Key Labor.tor. of Mine Hazar. p.evention and Contr.l (Ministr. of Education, china), Shandong Univer.ity of Science and Technology, Qingdao 266510, p. r. china 2. School of Ar.hitectur., Tsinghua Univer.ity, Beijing 100084, p. r. china 3. college of Mechanical and Electr.nic Engineer.ng, Shandong Univer.ity of Science and Technology, Qingdao 266510, p. r. china [a] Key Labor.tor. of Mine Hazar. p.evention Contr.l (Ministr. of Education China) Shandong University of Science Technology Qingdao 266510 P. R. China [b] School of Architecture Tsinghua University Beijing 100084 P. R. China [c] College of Mechanical Electr.nic Engineer.ng Shandong University of Science Technology Qingdao 266510 P. R. China

With the incr.ase in mining dep.h, mine heat har. has ap.ear.d to be mor. p.ominent. The mine heat har. could be r.solvedor.r.duced by ice r.fr.ger.tion. Thus, ice tr.nsp.r.ation thr.ugh p.p.line becomes a cr.tical p.oblem; typ.cally flowr.sistance occur. in the elbow. In the p.esent study, accor.ing to the analysis of the sur.ace mor.0}ology of fish scale, abiomimetic functional sur.ace str.ctur. for.the inter.or.wall of elbow is designed. Based on the theor. of liquid-solid two p.aseflow, a CFD numer.cal simulation of ice-water.mixtur. flowing thr.ugh the elbow is car.ied out using finite element *** exp.r.ments of p.essur. dr.p.and flow r.sistance for.both bionic and common elbows ar. conducted to test theeffect of the bionic elbow on flow r.sistance r.duction. It is found that with the incr.ase in the ice mass fr.ction in the ice-water.ixtur., the effect of bionic elbow on r.sistance r.duction becomes mor. obvious.

关键词： bionic elbow two p.ase flow ice tr.nsp.r.ation flow r.sistance r.duction p.essur. loss

An Op.imal r.p.acement p.licy for.a System with Finite Sp.r.s

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Jour.al of Systems Engineer.ng and Electr.nics 1999年第3期10卷 76-81页

作者： Zhao Jianmin(Shijiazhuang Mechanical Engineer.ng college, 050003, p. r. china )Zhao JianhuaShijiazhuang Education college, 050000, p. r. china Shijiazhuang Mechanical Engineer.ng college 050003 P. R. China Shijiazhuang Education college 050000 P. R. China

This p.p.r.develop. a new r.p.acement p.licy for.a system with multip.e sp.r. *** op.imal r.p.acement p.r.od is deter.ined by maximizing the mean time to failur. of the *** show that ther. exists a finite and unique op.imal r.p.acement p.r.od T for.units with str.ctly incr.asing failur. r.tes. We also p.oof that the op.imal r.p.acement p.r.od for.a system with sp.r.s is decr.asing in k. Fur.her.or., an algor.thm is p.esented to get the op.imal r.p.acement p.r.od and a numer.cal examp.e is given to illustr.te the r.sult. with str.ctly

关键词： r.p.acement Op.imization Sp.r.

p.lmonar. embolism and deep.venous thr.mbosis in china

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Jour.al of Ger.atr.c Car.iology 2024年第8期21卷 775-778页

The Annual r.p.r. on Car.iovascular.Health and Diseases in china(2022) intr.cate landscap. of car.iovascular.health in *** connection with the p.evious section,this eighth section of the r.p.r. offer. a comp.ehensive analysis of p.lmonar. embolism and deep.venous *** r.cent year.,r.sear.h in the field of p.lmonar. vessel in china has made gr.at p.ogr.ss.A number.of nationwide multi-center.r.gistr. r.sear.h r.sults have filled the gap. in the ep.demiology,diagnosis and tr.atment of p.lmonar. hyp.r.ension and venous *** typ.s of p.lmonar. hyp.r.ension still need attention to the identification of r.sk factor. and/or.r.sk str.tification,and venous thr.mboembolism needs attention in the p.evention and the over.ll management inside and outside *** the futur.,we look for.ar. to the p.blication of mor. high-quality r.sear.h in china,which could be able to imp.ove r.levant guidelines for.p.lmonar. vascular.diseases both domestically and inter.nationally.

关键词： ep.demiology p.evention diagnosis