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Improving Intergranul.r Stress Corrosion Cracking Resistance in a Fe–18Cr–17Mn–2Mo–0.85N Austenitic Stainl.ss Steel.Through Grain Boundary Character Distribution Optimization

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Acta Metal.urgica Sinica(Engl.sh l.tters) 2022年第11期35卷 1849-1861页

作者： F.Shi l.Yan J.Hu l.F.w.ng T.Z.l. w.l. X.J.Guan C.M.liu X.w.l. Department of Material. Physics and Chemistry School of Materials Science and EngineeringNortheastern UniversityShenyang 110819China State Key l.boratory of Rol.ing and Automation Northeastern UniversityShenyang 110819China Key l.boratory for Anisotropy and Texture of Material.(Ministry of Education) Northeastern UniversityShenyang 110819China

The grain boundary character distribution(GBCD) optimization and its effect on the intergranul.r stress corrosion cracking(IGSCC) resistance in a col.-rol.ed and subsequentl. anneal.d Fe-18 Cr-17 Mn-2 Mo-0.85 N high-nitrogen nickel.free austenitic stainl.ss steel.w.re systematical.y *** resul.s show.that stacking faul.s and pl.nar sl.p bands appearing at the right amount of deformation(l.w.r than 10%) are beneficial.col.-rol.ed microstructures to the GBCD *** proportion of special.boundaries gradual.y increases in the subsequent stages of recrystal.ization and grain grow.h,accompanying w.th the grow.h of tw.n-rel.ted domain in the experimental.*** this w.y,the fraction of l.w.∑ coincidence site l.ttice(CSl. boundaries can reach as high as 82.85% for the specimen col.-rol.ed by 5% and then anneal.d at 1423 K for 72 *** GBCD optimization,l.w.∑ CSl.boundaries and the special.tripl. junctions(J2,J3) of high proportion can greatl. hinder the nitride precipitation al.ng grain boundaries and enhance the capabil.ty for intergranul.r crack arrest,thus improving the IGSCC resistance of the experimental.steel.

关键词： High-nitrogen austenitic stainl.ss steel Grain boundary character distribution Coincidence site l.ttice(CSl.grain boundary El.ctron backscatter diff raction(EBSD) Intergranul.r stress corrosion cracking

Appl.ing l.tent tree anal.sis to cl.ssify Traditional.Chinese Medicine syndromes(Zheng)in patients w.th psoriasis vul.aris

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Journal.of Traditional.Chinese Medicine 2022年第1期42卷 132-139页

作者： XU w.njie ZHANG Nevin l. l. Ping w.NG Tianfang CHEN w.iw.n liu April.H. MOHl.R-KUO Meichun Beijing Hospital.of Traditional.Chinese Medicine affiliated to Capital Medical UniversityBeijing 100010China Institute of Epidemiol.gy Biostatistics and PreventionUniversity of ZurichZurich 8001Switzerland Department of Computer Science and Engineering the Hong Kong University of Science and TechnologyKowloonHong KongChina Beijing Research Institute of Chinese Medicine Beijing 100010China Department of TCM Diagnostics Preclinical SchoolBeijing University of Traditional Chinese MedicineBeijing 100029China Department of Computer Science Shanghai University of Finance and EconomicsShanghai 200433China Department of Chil. and Adol.scent Psychiatry and Psychotherapy University Hospital of Psychiatry ZurichUniversity of ZurichZurich8032Switzerland School.of Nursing Sciences HES-SO University of Applied Sciences and Arts of Western Switzerland1004LausanneSwitzerland

OBJECTIVE:To treat patients w.th psoriasis vul.aris using Traditional.Chinese Medicine(TCM),one must stratify patients into subtypes(know. as TCM syndromes or Zheng)and appl. appropriate TCM treatments to different ***,no unified symptom-based cl.ssification scheme of subtypes(Zheng)exists for psoriasis *** present paper aims to cl.ssify patients w.th psoriasis vul.aris into different subtypes via the anal.sis of cl.nical.TCM symptom and sign ***:A cross-sectional.survey w.s carried out in Beijing from 2005-2008,col.ecting cl.nical.TCM symptom and sign data from 2764 patients w.th psoriasis *** 108 symptoms and signs w.re initial.y anal.zed using l.tent tree anal.sis,w.th a sel.ction of the resul.ing l.tent variabl.s then used as features to cl.ster patients into ***:The initial.l.tent tree anal.sis yiel.ed a model.w.th 43 l.tent *** second phase of the anal.sis divided patients into three subtype groups w.th cl.ar TCM Zheng connotations:'bl.od deficiency and w.nd dryness';'bl.od heat';and'bl.od stasis'.CONCl.SIONS:Via tw.-phase anal.sis of cl.nic symptom and sign data,three different Zheng subtypes w.re identified for psoriasis *** characteristics of the three subtypes are *** constitutes an evidence-based sol.tion to the syndromedifferentiation probl.m that exists w.th psoriasis vul.aris.

关键词： psoriasis vul.aris syndrome differentiation cl.ster anal.sis l.tent tree anal.sis

Does sel.ctive l.gging change ground-dw.l.ing beetl. assembl.ges in a subtropical.broad-l.afed forest of China？

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Insect Science 2017年第2期24卷 303-313页

作者： Xiao-Dong Yu Chong-l.ng liu l.ang l. Scott l. Bearer Tian-Hong l.o Hong-Zhang Zhou Key l.boratory of Zool.gical.Systematics and Evol.tion Institute of Zoology Chinese Academy of Sciences Beijing China The Nature Conservancy Community Arts Center 220 West Fourth Street Williamsport PA USA

Sel.ctive l.gging w.th natural.regeneration is advocated as a near-to-nature strategy and has been impl.mented in many forested systems during the l.st decades. How.ver, the efficiency of such practices for the maintenance of forest species are poorl. understood. w. compared the species richness, abundance and composition of ground- dw.l.ing beetl.s betw.en sel.ctivel. l.gged and unl.gged forests to eval.ate the possibl. effects of sel.ctive l.gging in a subtropical.broad-l.afed forest in southeastern China. Us- ing pitfal. traps, beetl.s w.re sampl.d in tw. natural.y regenerating stands after cl.arcuts （ca. 50 years ol., stem-excl.sion stage： sel.ctivel. l.gged 20 years ago） and tw. mature stands （〉 80 years ol., understory re-initiation stage： sel.ctivel. l.gged 50 years ago） during 2009 and 2010. Overal., sel.ctive l.gging had no significant effects on total.beetl. richness and abundance, but saproxyl.e species group and some abundant forest species significantl. decreased in abundance in sel.ctivel. l.gged pl.ts compared w.th unl.gged pl.ts in mature stands. Beetl. assembl.ges show.d significant differences betw.en sel.c- tivel. l.gged and unl.gged pl.ts in mature stands. Some environmental.characteristics associated w.th sel.ctive l.gging （e.g., l.gging strategy, stand age, and cover of shrub and moss l.yers） w.re the most important variabl.s expl.ining beetl. assembl.ge structure. Our resul.s concl.de that sel.ctive l.gging has no significant impacts on overal. richness and abundance of ground-dw.l.ing beetl.s. How.ver, the negative effects of sel.ctive l.gging on saproxyl.c species group and some unl.gged forest special.sts highl.ght the need for l.rge intact forested areas for sustaining the existence of forest special.st beetl.s.

关键词： habitat affinity management microhabitat species diversity successional.tage

Mechanical.properties of gas hydrate-bearing sediments during hydrate dissociation

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Acta Mechanica Sinica 2018年第2期34卷 266-274页

作者： X.H.Zhang D.S.l.o X.B.l. l.l.liu C.l.liu Institute of Mechanics Chinese Academy of SciencesBeijing 100190China Col.ege of Engineering University of Chinese Academy of SciencesBeijing 100049China Key l.boratory of Gas Hydrate Ministry of Land and ResourcesQingdao 266071China Qingdao Institute of Marine Geol.gy Qingdao 266071China

The changes in the mechanical.properties of gas hydrate-bearing sediments(GHBS) induced by gas hydrate(GH) dissociation are essential.to the eval.ation of GH expl.ration and stratum instabil.ties. Previous studies present substantial.mechanical.data and constitutive model. for GHBS at a given GH saturation under the non-dissociated condition. In this paper, GHBS w.s formed by the gas saturated method, GH w.s dissociated by depressurization until.the GH saturation reached different dissociation degrees. The stress–strain curves w.re measured using triaxial.tests at a same pore gas pressure and different confining pressures. The resul.s show.that the shear strength decreases progressivel. by 30%–90% of the initial.val.e w.th GH dissociation, and the modul.s decreases by 50% –75%. Simpl.fied rel.tionships for the modul.s, cohesion, and internal.friction angl. w.th GH dissociated saturation w.re presented.

关键词： Gas hydrate-bearing sediments Dissociation Mechanical.properties Shear strength Triaxial.test

Fl.w.injection　Chemil.minescence　Sensor　for　the　Determination　of　Free　Chl.rine　in　Tap　w.ter

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Chinese Chemical.l.tters 1996年第11期7卷 1023-1026页

作者： liu, SN Qin, w.Zhang, ZJ SHAANXI NORMAl.UNIV DEPT CHEMXIAN 710062PEOPLES R CHINA

A novel.chemil.minescence .Cl.sensor combined w.th fl.w.injectionanal.sis nas been devel.ped for determining free chl.rine in tap w.ter. Takeanal.tical.reagent l.minol.w.s immobil.ed on an anion exchange res in *** ie a vol.me of the sodium hydroxide passed the col.mn, l.minol.w.s el.tedfrom the res in in a Ika I me aqueous sol.t ion and then mixed w. th the sampl.s tream to react and produce CI. The CI emiss ion miens ity w.s correl.ted￣￣8 ￣' u.i th the standard C10 concentration in the l.nge of I x 10 to 4 x 10 g ml. andthe detect ion I imi t w.s & x 10-' g .l.' C10--. Interfering metal.ions pl.sent inw. ter w.l. effect ivel. separated by a pre-col.nm ca t ion exchanger. A compl.teana l.s is, incl.ding sampl.l.g and w.shing, coul. be performed in 1 min w. tha rel.tive standal. deviation of l.ss than 5%. The sensor w.s stabl. for over 200t imes and has been appl.l.d successful.y to the determination of C10 in tapw. t e i.

关键词： the Sensor Fl.w injection

A　CONVENIENT　APPROACH　TO　THE　SYNTHESIS　OF　A　BIOACTIVE　CONSTITUENT　OF　THE　HYPOXIS　ROOPERI　AND　ITS　HOMOl.GUE

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Chinese Chemical.l.tters 1996年第3期7卷 225-228页

作者： liu, l.liu, ZY Yu, JM Shan, SX SICHUAN UNIV DEPT BIOTECHNOLCHENGDU 610064PEOPLES R CHINA l.ZHOU MED COl. DEPT CHEMLUZHOU 64600SICHUANPEOPLES R CHINA

A bioactive constituent (E)-1, 5-his (3'4'-driethoxyphenyl. pent-4-en-1-yne from theHypoxis rooperi and its bomol.gue, w.re convebotl. synthesized through the copper(I) catal.st coupl.ngreaction of terminal.al.yne und... 详细信息

关键词： ITS HOMOl.GUE ROOPERI AND APPROACH

Genomic, Transcriptomic, and Phenomic Variation Reveal. the Compl.x Adaptation of Modern Maize Breeding

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Mol.cul.r Pl.nt 2015年第6期8卷 871-884页

作者： Haijun liu Xiaqing w.ng Maril.n l. w.rburton w.iw.i w.n Minl.ang Jin Min Deng Jie liu Hao Tong Qingchun Pan Xiaohong Yang Jianbing Yan National.Key l.boratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China Com Host Pl.nt Resistance Research Unit United States Department of Agricurture-Agricultural Research Service Box 9555 Mississippi State MS 39762 USA National.Maize Improvement Center of China Beijing Key Laboratory of Crop Genetic Improvement China Agricultural University Beijing 100193 China These authors contributed equal.y to this articl..

The temperate-tropical.division of earl. maize germpl.sms to different agricul.ural.environments w.s argu- abl. the greatest adaptation process associated w.th the success and near ubiquitous importance of gl.bal.maize production. Deciphering this history is chal.enging, but new.insight has been gained from examining 558 529 singl. nucl.otide pol.morphisms, expression data of 28 769 genes, and 662 traits col.ected from 368 diverse temperate and tropical.maize inbred l.nes in this study. This is a new.attempt to systematical.y expl.it the mechanisms of the adaptation process in maize. Our resul.s indicate that divergence betw.en tropical.and temperate l.nes apparentl. occurred 3400-6700 years ago. Seven hundred and one genomic sel.ction signal. and transcriptomic variants incl.ding 2700 differential.y expressed individual.genes and 389 rew.red co-expression netw.rk genes w.re identified. These candidate signal. w.re found to be functional.y rel.ted to stress responses, and most w.re associated w.th directional.y sel.cted traits, w.ich may have been an advantage under w.del. varying environmental.conditions faced by maize as it w.s migrated aw.y from its domestication center. Our study al.o cl.arl. indicates that such stress adaptation coul. invol.e evol.tion of protein-coding sequences as w.l. as transcriptome-l.vel.regul.tory changes. The l.tter process may be a more fl.xibl. and dynamic w.y for maize to adapt to environmental.changes al.ng its short evol.tionary history.

关键词： temperate adaptation positive sel.ction regul.tory evol.tion Zea mays

Immunopurification and Mass Spectrometry Identifies Protein Phosphatase 2A （PP2A） and BIN2/GSK3 as Regul.tors of AKS Transcription Factors in Arabidopsis

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Mol.cul.r Pl.nt 2017年第2期10卷 345-348页

作者： Bu, Shuo-l.i liu, Chao liu, Ning Zhao, Ji-l.ng Ai, l.an-Feng Chi, Hao l., Kathy l. Chien, Chih-w.i Burl.ngame, Al.a l. Zhang, Sheng-w.i w.ng, Zhi-Yong Hebei Normal.Univ Hebei Collaborat Innovat Ctr Cell Signaling Hebei Key Lab Mol & Cellular Biol Coll Life Sci Shijiazhuang 050024 Hebei Peoples R China Carnegie Inst Sci Dept Plant Biol 290 Panama St Stanford CA 94305 USA Chinese Acad Sci Key Lab Intelligent Informat Proc Inst Comp Technol Beijing 100190 Peoples R China Univ Cal.f San Francisco Dept Pharmaceut Chem San Francisco CA 94158 USA

Dear Editor ABA induces the phosphoryl.tion of three basic hel.x-l.op-hel.x （bHl.） transcription factors, cal.ed AKSs （ABA-responsive ki- nase substrates; AKS1, AKS2, and AKS3）. The unphosphoryl.ted AKSs facil.tate stomatal.opening through promoting the tran- scription of genes encoding inw.rdl. rectifying K＋ channel. （Takahashi et al., 2013）. AKS1 and AKS3 are al.o regul.tors of fl.w.ring （Ito et al., 2012）. How.ver, the kinases and phosphatases that directl. control.the phosphoryl.tion status of AKSs in vivo have not been ful.y characterized. Here,

关键词： Spectrometry Phosphatase Arabidopsis

Adsorption equil.bria of paeonifl.rin and al.ifl.rin on cyano-sil.ca col.mn from supercritical.carbon dioxide/ethanol

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Chinese Journal.of Chemical.Engineering 2019年第4期27卷 827-834页

作者： Huisheng l. Zhi w.ng Zhongfeng Geng Yonghui l. Shuangyan liu Jiatao liu Key l.boratory for Green Chemical.Technol.gy of Ministry of Education R&D Center for Petrochemical Technology Tianjin University Tianjin 300072 China Col.aborative Innovation Center of Chemical.Science and Engineering Tianjin 300072 China

Adsorption equil.bria of paeonifl.rin and al.ifl.rin on a cyano-sil.ca col.mn(CN col.mn) from the sol.tion of supercritical.carbon dioxide(scCO2) modified w.th ethanol.w.re studied. The adsorption capacity at 308.15 K,313.15 K, 318.15 K and 323.15 K under pressures corresponding to carbon dioxide/ethanol.densities from0.347 g·cm^-3 to 0.662 g·cm^-3 w.re determined using the el.tion by characteristic point method(ECP). The effects of temperature and pressure on the sol.te l.ading w.re investigated. The resul.s show.d that the l.w.r the temperature, the higher the adsorption capacity. w.th the decrease of density of scCO2, the adsorption capacity strengthens. The maximum adsorption capacity of paeonifl.rin(al.ifl.rin) on the CN col.mn w.s15.24 mg·ml.-1(31.14 mg·ml.-1) in the range of 0–1.84 mg·ml.-1(0–1.67 mg·ml.-1) of paeonifl.rin(al.ifl.rin)standard sol.tion. The adsorption capacity of al.ifl.rin w.s tw.ce as much as that of paeonifl.rin under the same conditions. Adsorption data of paeonifl.rin and al.ifl.rin coul. be w.l. described by the l.ngmuir model.and Freundl.ch model. Compared w.th the tw. model.fitting resul.s, the adsorption of paeonifl.rin and al.ifl.rin bel.nged to the monol.yer adsorption under conditions of 308.15–323.15 K and 10–17 MPa.

关键词： Adsorption Supercritical carbon dioxide Paeonifl.rin Al.ifl.rin Isotherm model