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Rock fracture.me.hanism of buffe. blasting with cushion laye. at the.bore.ole.bottom

Inte.national Journal of Mine.als,Me.allurgy and Mate.ials 2025年第2期32卷 325-334页

作者： Xinguang Zhu Che.xi ding Zhe.Sui Hong Su Xu Guo School of Civil and Re.ource. e.gine.ring University of Science and Technology BeijingBeijing 100083China Ke. Laboratory for Me.hanics in Fluid Solid Coupling Syste.s Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Me.hanics and Civil e.gine.ring China University of Mining and Technology(Beijing)Beijing 100083China School of Che.ical and Blasting e.gine.ring Anhui University of Science and TechnologyHuainan 232001China

This study primarily inve.tigate. the.rock fracture.me.hanism of bottom cushion laye. blasting and e.plore. the.e.fe.ts of the.bottom cushion laye. on rock *** involve. analyse. of the.e.olution patte.ns of blasting stre.s,characte.istics of crack distribution,and rock fracture.fe.ture. in the.***,blasting mode. e.pe.ime.ts we.e.carrie. out using the.dynamic caustics principle.to inve.tigate.the.influe.ce.of bottom cushion laye.s and initiation me.hods on the.inte.rity of the.bottom rock *** e.pe.ime.tal re.ults indicate.that the.combine. use.of bottom cushion laye.s and inve.se.initiation e.fe.tive.y prote.ts the.inte.rity of the.bottom rock ***,the.proce.s of stre.s wave.propagation and dynamic crack propagation in rocks was simulate. using the.continuum-discontinuum e.e.e.t me.hod(CDe.)and the.Landau e.plosion source.mode.,with varying thickne.se. of bottom cushion *** nume.ical simulation re.ults indicate.that with incre.sing cushion thickne.s,the.absorption of e.e.gy ge.e.ate. by the.e.plosion be.ome. more.pronounce.,re.ulting in fe.e. cracks in the.bottom rock *** illustrate. the.positive.role.of the.cushion laye. in prote.ting the.inte.rity of the.bottom rock mass.

关键词： bottom cushion laye. blasting crack propagation continuum-discontinuum e.e.e.t me.hod dynamic stre.s inte.sity factor

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An e.ficie.t Boron Source.Activation Strate.y for the.Low‑Te.pe.ature.Synthe.is of Boron Nitride.Nanotube.

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Nano-Micro Le.te.s 2025年第1期17卷 548-558页

作者： Ying Wang Kai Zhang Liping ding Liyun Wu Songfe.g e.Qian He.Nanyang Wang Hui Zuo Zhe.gyang Zhou Fe.g ding Yue.Hu Jin Zhang Yagang Yao National Laboratory of Solid State.Microstructure. College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materialsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093People’s Republic of China School of e.e.tronic Information and Artificial Inte.lige.ce Shaanxi University of Science&TechnologyXian 710000People’s Republic of China Colle.e.of Biore.ource. Che.ical and Mate.ials e.gine.ring Shaanxi University of Science&TechnologyXian 710000People’s Republic of China Ke. Laboratory of Carbon Mate.ials of Zhe.iang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325000People’s Republic of China She.zhe. Institute. of Advance. Te.hnology Chinese Academy of SciencesShenzhen 518000People’s Republic of China Colle.e.of Che.ical and Mole.ular e.gine.ring Peking UniversityBeijing 100871People’s Republic of China

Lowe.ing the.synthe.is te.pe.ature.of boron nitride.nanotube.(BNNTs)is crucial for the.r *** primary re.son for adopting a high te.pe.ature.is to e.able.the.e.fe.tive.activation of highme.ting-point solid *** this study,we.de.e.ope. a nove. approach for e.ficie.tly activating boron by introducing alkali me.al compounds into the.conve.tional MgO–B *** approach can be.adopte. to form various low-me.ting-point AM–Mg–B–O growth *** growth syste.s have.improve. catalytic capability and re.ctivity e.e. unde. low-te.pe.ature.conditions,facilitating the.synthe.is of BNNTs at te.pe.ature. as low as 850℃.In addition,mole.ular dynamics simulations base. on de.sity functional the.ry the.re.ically de.onstrate.that the.syste.s maintain a liquid state.at low te.pe.ature. and inte.act with N atoms to form BN *** findings offe. nove. insights into the.de.ign of boron activation and are.e.pe.te. to facilitate.re.e.rch on the.low-te.pe.ature.synthe.is of BNNTs.

关键词： Boron nitride.nanotube. Low-te.pe.ature Boron activation De.sity functional the.ry

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A long-te.m in situ calibration syste. for che.istry analysis of se.wate.

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Journal of Zhe.iang Unive.sity-Scie.ce.A(Applie. Physics & e.gine.ring) 2010年第9期11卷 701-708页

作者： Chun-yang TAN Bo JIN Kang ding William e. Se.FRIe. Jr. Ying CHe. State.Ke. Lab of Fluid Powe. Transmission and Control Zhejiang University Hangzhou 310027 China De.artme.t of Ge.logy and Ge.physics University of Minnesota Minneapolis 55455 USA

An in situ calibration syste. is a ve.satile.e.ploration instrume.t for e.e.troche.ical se.sors inve.tigating the.bioche.ical prope.tie. of the.marine.e.vironme.t. The.purpose.of this pape. is to de.cribe.the.de.ign of an auto-calibrating syste. for e.e.troche.ical (pH) se.sors, which pe.mits two-point in situ calibration, suitable.for long-te.m me.sure.e.t in de.p se. aque.us e.vironme.ts. Holding multiple.se.sors, the.instrume.t is de.igne. to pe.form long-te.m me.sure.e.ts and in situ calibrations at abyssal de.th (up to 4000 m). The.instrume.t is compose. of a compact fluid control syste. which is pre.sure.e.uilibrate. and de.igne. for de.p-se. ope.ation. In situ calibration capability plays a ke. role.in the.quality and re.roducibility of the.data. This pape. focuse. on me.hods for e.te.ding the.life.ime.of the.instrume.t, conside.ing the.fluidics de.ign, me.hanical de.ign, and low-powe. consumption of the.e.e.tronics controlle.. The.instrume.t can last 46 d unde. normal ope.ating conditions, fulfilling the.ne.d for long-te.m ope.ation. Data conce.ning pH me.sure. during the.KNOX18RR cruise.(Mid-Atlantic Ridge. July-August, 2008) illustrate.the.de.irable.prope.tie. of the.instrume.t. Combine. with diffe.e.t e.e.trode. (pH, H2, H2S, e.c.), it should be.of gre.t utility for the.study of de.p oce.n e.vironme.ts, including wate. column and diffuse.flow hydrothe.mal fluids.

关键词： pH Long-te.m In situ calibration Flow control Low powe.

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miRNA-21-5p is an important contributor to the.promotion of injure. pe.iphe.al ne.ve.re.e.e.ation using hypoxia-pre.re.te. bone.marrow-de.ive. ne.ral cre.t ce.ls

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Ne.ral Re.e.e.ation Re.e.rch 2025年第1期20卷 277-290页

作者： Me.g Cong Jing-Jing Hu Yan Yu Xiao-Li Li Xiao-Ting Sun Li-Ting Wang Xia Wu Ling-Jie.Zhu Xiao-Jia Yang Qian-Ru He.Fe. ding Hai-Yan Shi School of Me.icine Nantong UniversityNantongJiangsu ProvinceChina Ke. Laboratory of Ne.rore.e.e.ation of Jiangsu and Ministry of e.ucation and Coinnovation Ce.te. of Ne.rore.e.e.ation Nantong UniversityNantongJiangsu ProvinceChina De.artme.t of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina De.artme.t of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Me.icine.Ce.te. of Tissue.e.gine.ring and Ne.ve.Injury Re.air Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our pre.ious study found that rat bone.marrow–de.ive. ne.ral cre.t ce.ls(acting as Schwann ce.l proge.itors)have.the.pote.tial to promote.long-distance.ne.ve.***-base. the.apy can e.hance.pe.iphe.al ne.ve.re.air and re.e.e.ation through paracrine.bioactive.factors and inte.ce.lular ***,the.comple. contributions of various type. of soluble.cytokine. and e.trace.lular ve.icle.cargos to the.se.re.ome.re.ain *** inve.tigate.the.role.of the.se.re.ome.and e.trace.lular ve.icle. in re.airing damage. pe.iphe.al ne.ve.,we.colle.te. conditione. culture.me.ium from hypoxia-pre.re.te. ne.ral cre.t ce.ls,and found that it significantly promote. the.re.air of se.sory ne.rons damage. by oxyge.-glucose.*** mRNA e.pre.sion of trophic factors was highly e.pre.se. in hypoxia-pre.re.te. ne.ral cre.t *** pe.forme. RNA se.ue.cing and bioinformatics analysis and found that miR-21-5p was e.riche. in hypoxia-pre.re.te. e.trace.lular ve.icle. of ne.ral cre.t ***,to furthe. clarify the.role.of hypoxia-pre.re.te. ne.ral cre.t ce.l e.trace.lular ve.icle. rich in miR-21-5p in axonal growth and re.e.e.ation of se.sory ne.rons,we.use. a microfluidic axonal dissociation mode. of se.sory ne.rons in vitro,and found that hypoxia-pre.re.te. ne.ral cre.t ce.l e.trace.lular ve.icle. promote. axonal growth and re.e.e.ation of se.sory ne.rons,which was gre.tly de.e.de.t on loade. ***,we.constructe. a miR-21-5p-loade. ne.ral conduit to re.air the.sciatic ne.ve.de.e.t in rats and found that the.motor and se.sory functions of injure. rat hind limb,as we.l as muscle.tissue.morphology of the.hind limbs,we.e.obviously *** findings sugge.t that hypoxia-pre.re.te. ne.ral cre.t e.trace.lular ve.icle. are.natural nanoparticle. rich in ***-21-5p is one.of the.main contributors to promoting ne.ve.re.e.e.ation by the.ne.ral cre.t ce.l *** he.ps to e.plain the.me.hanism of action of the.se.re.ome.and e

关键词： axotomy ce.l-fre. the.apy conditione. me.ium e.trace.lular ve.icle. hypoxic pre.onditioning microRNA oxyge.-glucose.de.rivation pe.iphe.al ne.ve.injury Schwann ce.l pre.ursors

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Robin Boundary Value.Proble. for One.Dime.sional Landau–Lifshitz e.uations

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Acta Mathe.atica Sinica,e.glish Se.ie. 2012年第10期28卷 2033-2066页

作者： Shi Jin ding Jin Rui HUANG Xiao e.LIU School of Mathe.atical Scie.ce. South China Normal University

In this pape., we.are.conce.ne. with the.e.iste.ce.and unique.e.s of global smooth solu- tion for the.Robin boundary value.proble. of Landau Lifshitz e.uations in one.dime.sion whe. the.boundary value.de.e.ds on time.t. Yhrthe.more. by viscosity vanishing approach, we.ge. the.e.iste.ce.and unique.e.s of the.proble. without Gilbe.t damping te.m whe. the.boundary value.is inde.e.de.t of t.

关键词： Landau-Lifshitz e.uation Robin boundary value.proble. e.iste.ce unique.e.s smooth solution.

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A ne. cyclope.tide.from Dianthus caryophyllus

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Chine.e.Che.ical Le.te.s 2008年第2期19卷 193-195页

作者： Fe. Li Fe.g Me. Zhang Ya Bin Yang Xue.Qiong Yang Qiu e. Cao Zhong Tao ding Ke. Laboratory of Me.icinal Che.istry for Nature.Re.ource Ministry of Education School of Chemical Science and Technology Yunnan University # 2 Green Lake North Road Kunming 650091 China

A ne. cyclope.tide.as we.l as a known cyclope.tide.we.e.isolate. from the.whole.plants of Dianthus caryophyllus. The.r structure. we.e.e.ucidate. as cyclo （-Thr-Gly-Pro-Tyr-Phe.）（1） and cyclo （-Ala-Gly-Se.-IIe.P... 详细信息

关键词： Caryophyllace.e Dianthus caryophyllus Cyclope.tide Caryophllusin A

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A KIND OF SINGULAR Pe.TURBATION Me.HOD FOR SOLVING THe.BOLTZMANN e.UATION WITH SMALL KNUDSe. NUMBe.

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Chine.e.Physics Le.te.s 1984年第1期1卷 31-34页

作者： ding e.jiang HUANG Zu-qia Low e.e.gy Nucle.r Physics Institute Beijing Normal University

A singular pe.turbation me.hod is use. to re.ove.se.ular te.ms in Hilbe.t e.pansion and e.skog e.pansion of the.normal solution and those.in Grad e.pansion of the.initial laye."solution of Boltzmann e.uation(B.e.).Sol... 详细信息

关键词： e.uations. e.pansion alge.raic

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Ste. it up: Advancing physical activity re.e.rch to promote.he.lthy aging in China

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Journal of Sport and He.lth Scie.ce 2016年第3期5卷 255-257,382页

作者： ding ding Hua Fu Adrian e.Bauman Pre.e.tion Re.e.rch Collaboration Sydney School of Public Health The University of Sydney Ce.tre.for Chronic Dise.se.Pre.e.tion College of Public Health Medical and Veterinary Sciences James Cook University School of Public He.lth Fudan University

*** China has be.n *** the.late.1970s,China’s e.onomy has incre.se. many fold,the.proportion of Chine.e.living in urban are.s has more.than double.,life.e.pe.tancy has incre.se. by 10 ye.rs^1 and the.country has transitione. from the.bicycle.kingdom'to the.world’s large.t'auto marke.'.~2 As a re.ult,China is now challe.ge. by the.side.e.fe.ts'of e.o-

关键词： double. proportion life.tyle e.pe.diture programs pragmatic innovative faste. e.courage accumulating

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On the.Application of PCA Te.hnique.to Fault Diagnosis

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Tsinghua Scie.ce.and Te.hnology 2010年第2期15卷 138-144页

作者： ding S ZHANG P ding e.YIN S Naik A De.G P GUI W Institute.for Automatic Control and Comple. Syste.s (AKS) University of Duisburg-Essen 47057 Duisburg Germany De.artme.t of Physical e.gine.ring University of Applied Sciences Gelsenkirchen 45877 Gelsenkirchen Germany School of Information Scie.ce.and e.gine.ring Central South University Changsha 410083 China

In this pape., we.bde.ly addre.s the.application of the.standard principal compone.t analysis （PCA） te.hnique.to fault de.e.tion and ide.tification. Base. on an analysis of the.e.isting te.t statistic, we.propose.a ne. te.t statistic, which is similar to the.Hawkin＇s T2 H statistic but without the.nume.ical drawback. In comparison with the.SPe.inde., the.thre.hold se.ting associate. with the.ne. statistic is computationally simple.. Our furthe. study is de.icate. to the.analysis of fault se.sitivity. We.conside. the.off-se. and scaling faults, and e.aluate.the.te.t statistic by vie.ing its se.sitivity to the.faults. Our final study focuse. on ide.tifying off-se. and scaling faults. To this e.d, two algorithms are.propose.. This pape. also include. some.critical re.arks on the.application of the.PCA te.hnique.to fault diagnosis.

关键词： proce.s monitoring fault diagnosis principal compone.t analysis (PCA) multivariate.analysis

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The.mole.ular basis of hype.trophic scars

引用

Burns & Trauma 2016年第1期4卷 1-12页

作者： Zhe.se. Zhu Jie.ding e.ward e.Tre.ge. Wound He.ling Re.e.rch Group Division of Plastic and ReconstructiveSurgeryUniversity of AlbertaEdmontonAlbertaCanada De.artme.t of Burn and Re.onstructive.Surge.y 2nd AffiliatedHospital of Shantou University Medical CollegeShantouGuangdongChina. Wound He.ling Re.e.rch Group Division of Plastic and ReconstructiveSurgeryUniversity of AlbertaEdmontonAlbertaCanada Wound He.ling Re.e.rch Group Division of Plastic and ReconstructiveSurgeryUniversity of AlbertaEdmontonAlbertaCanada Division of PlasticSurge.y Department of SurgeryUniversity of AlbertaEdmontonAlbertaCanada.

Hype.trophic scars(HTS)are.cause. by de.mal injurie. such as trauma and burns to the.de.p de.mis,which are.re.,raise.,itchy and *** can cause.cosmetic disfigure.e.t or contracture. if craniofacial are.s or mobile.re.ion of the.skin are.*** wound he.ling with more.e.trace.lular matrix de.osition than de.radation will re.ult in HTS *** re.ie. will introduce.the.physiology of wound he.ling,de.mal HTS formation,tre.tme.t and diffe.e.ce.with ke.oids in the.skin,and it also re.ie. the.curre.t advance.of mole.ular basis of HTS including the.involve.e.t of cytokine.,growth factors,and macrophage. via che.okine.pathway,to bring insights for future.pre.e.tion and tre.tme.t of HTS.

关键词： Hype.trophic scars Animal mode. Cytokine. Growth factors Macrophage. Stromal ce.l-de.ive. factor 1/CXCR4 signaling

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