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Shock compression and spallation damage of high-entropy alloy Al_(0.1)CoCrFeni

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Journal of Materials Science & Technology 2022年第33期128卷 1-9页

作者： n.B.zhang J.xu Z.D.Feng Y.F.Sun J.Y.Huang x.J.Zhao x.H.Yao S.Chen L.Lu S.n.Luo Key Laboratory of Advanced Technologies of Materials Ministry of EducationSouthwest Jiaotong UniversityChengdu 610031China The Peac Institute of Multiscale Sciences Chengdu 610031China Department of Engineering Mechanics South China University of TechnologyGuangzhou 510641China

Shock compression and spallation damage of a face-center cubic phase high-entropy alloy(HEA)Al_(0.1)CoCrFeni were investigated via plate impact experiments along with free surface velocity *** samples were characterized with transmission electron microscopy and electron backscatter *** Hugoniot equation of state and spall strength at different impact strengths were *** exists a power-law relation between spall strength and strain *** spall strength of Al_(0.1)CoCrFeni HEA is about 50%higher than those of previously studied HEAs and comparable to those widely applied structural stainless steels at the same shock *** glide and stacking faults are the important deformation mechanisms in the Al_(0.1)CoCrFeni *** are only observed at high shock *** in the Al_(0.1)CoCrFeni HEA is ductile in *** are nucleated preferentially in grain interiors,and the intragranular voids show a strong dependence on grain boundary misorientation and peak stress.

关键词： Al_(0.1)CoCrFeni High-entropy alloy Hugoniot Spall damage Microstructure

Research on the Construction of Intellectual Property System and Optimization of Business Environment in China

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科技与法律（中英文） 2025年第1期 125-137页

作者： zhang xue Lyu Guofu Institute of Intellectual Property Guizhou University of CommerceGuiyang 550014China

With the rapid development of globalization and information technology,intellectual property has been one of the key drivers of economic growth,and the construction of intellectual property system has become an important criterion for measuring the quality of business *** article is intended to explore the current status of intellectual property system construction in China,the challenges,and its relationship with the business environment,to propose the corresponding countermeasures and *** study finds that the legal system of intellectual property in China is gradually improving,and judicial and administrative protection are continuously ***,the challenges still remain such as frequent infringements,rights hard to protect and insufficient international *** issues not only affect the legitimate rights and interests of innovation entities,but also for the market fairness and the level of the business ***,this article proposes that strengthening the perfection of the intellectual property legal system,enhancing intellectual property services and support capabilities,strengthening international cooperation and exchanges,and accelerating the cultivation of composite *** aims to provide theoretical references for the construction of intellectual property system and the optimization of the business environment,promote the high-quality development of economy and enhance the global competitiveness of the country.

关键词： intellectual property business environment system construction economic development

Analysis of Chinese Anti-Suit Injunctions in SEP Litigation

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科技与法律（中英文） 2025年第1期 138-148页

作者： Ou Fuyong zhang xiaoxiao Law School Hunan Normal UniversityChangsha 410081China

In this article,two cases of Standard Essential Patents,ruled by the Supreme People's Court of the People's Republic of China,are presented and *** first Chinese anti-suit injunction in SEP litigation appeared in the first case through the method of behavior preservation,and the second case illustrates a clear intent by the Chinese courts to compete for global royalty rate *** international concerns raised about these cases,it is proved that the anti-suit injunction cases in China do not show any abusive or illegal *** worldwide anti-suit injunctions in China are granted legitimately with legal jurisdiction over the cases,sufficient legal grounds for behavior preservation with the nature of anti-suit injunctions,the necessity of granting worldwide injunctions,and suitable granting *** pieces of advice are proposed for the future application of anti-suit injunctions,including improvements in the predictability of validity scope,consistency of implementation,and clarification of penalties.

关键词： anti-suit injunction anti-anti-suit injunction FRAnD royalty rate jurisdiction SEP

One-dimensional Ga n nanomaterials transformed from one-dimensional Ga_2O_3 and Ga nanomaterials

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nano-Micro Letters 2009年第1期1卷 4-8页

作者： x.Y.Han Y.H.Gao x.H.zhang Wuhan national Laboratory for Optoelectronics-Shool of Physics Huazhong University of Science and Technology Wuhan national Laboratory for Optoelectronics & Col ege of Optoelectronic Science and Engineering Huazhong University of Science and Technology

One-dimensional(1D) Gan nanomaterials exhibiting various morphologies and atomic structures were prepared via ammoniation of either Ga_2O_3 nanoribbons, Ga_2O_3 nanorods or Ga nanowires filled into carbon nanotubes(CnTs). The 1D Gan nanomaterials transformed from Ga_2O_3 nanoribbons consisted of numerous Gan nanoplatelets having the close-packed plane, i.e.(0002)2H or(111)3C parallel to the axes of starting nanoribbons. The 1D Gan nanomaterials converted from Ga_2O_3 nanorods were polycrystalline rods covered with Gan nanoparticles along the axes. The 1D Gan nanomaterials prepared from Ga nanowires filled into CnTs displayed two dominant morphologies:(i) single crystalline Ga n nanocolumns coated by CnTs, and(ii) pure single crystalline Ga n nanowires. The cross-sectional shape of Ga n nanowires were analyzed through the transmission electron microscopy(TEM) images. Formation mechanism of all-mentioned 1D Gan nanomaterials is then thoroughly discussed.

关键词： Gan One-dimensional Ga2O3 nanostructures

An Improvement on the Efficiency of a Single Rotor Transonic Compressor by Reducing the Shock Wave Strength on the Blade Suction Surfaces

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Journal of Thermal Science 2012年第2期21卷 127-135页

作者： S. J. Geng n. x. Chen H. W. zhang W. G. Huang Institute of Engineering Thermophysics Chinese Academy of Sciences EO. Box 2706 Beijing 100190 China

It is well known that increasing the rotational velocity is an effective way to increase the total pressure ratio. With increasing flow velocity especially under the condition of transonic flow in the supersonic region, where exist strong shock waves, the shock wave loss becomes main and important. Simultaneously, there occurs boundary layer separation due to the shock wave / boundary layer interaction. In the present paper the transonic compressor blades were studied and analyzed to find a proper and simple way to reduce the shock wave loss by optimizing the suction surface configuration or controlling the gradient of isentropic Mach number on the suction surface. A navier-Stokes solver combined with a modified design algorithm was developed and used. The nASA single rotor for transonic flow compressor was served as a numerical example to show the effectiveness of this method. Two cases for both original and modified rotors were analyzed and compared.

关键词： Transonic compressor shock wave loss efficiency improvement blade optimization

Risk factors for developing osteoporosis in diabetic kidney disease and its correlation with calcium-phosphorus metabolism,FGF23,and Klotho

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World Journal of Diabetes 2025年第1期16卷 49-57页

作者： Fan Yang Yan Wu Wei zhang Department of Endocrinology Wuhu Second People's HospitalWuhu 241000Anhui ProvinceChina Department of nephrology Wuhu Second People's HospitalWuhu 241000Anhui ProvinceChina

BACKGROUnD The progression of diabetic kidney disease(DKD)affects the patient’s kidney glomeruli and tubules,whose normal functioning is essential for maintaining normal calcium(Ca)and phosphorus(P)metabolism in the *** risk of developing osteoporosis(OP)in patients with DKD increases with the aggravation of the disease,including a higher risk of fractures,which not only affects the quality of life of patients but also increases the risk of *** To analyze the risk factors for the development of OP in patients with DKD and their correlation with Ca-P metabolic indices,fibroblast growth factor 23(FGF23),and *** One hundred and fifty-eight patients with DKD who were admitted into the Wuhu Second People’s Hospital from September 2019 to May 2021 were selected and divided into an OP group(n=103)and a normal bone mass group(n=55)according to their x-ray bone densitometry *** data and differences in Ca-P biochemical indices,FGF23,and Klotho were *** correlation of Ca-P metabolic indices with FGF23 and Klotho was discussed,and the related factors affecting OP in patients with DKD were examined by multivariate logistic regression *** The OP group had a higher proportion of females,an older age,and a longer diabetes mellitus duration than the normal group(all Pnts in the OP group exhibited significantly higher levels of intact parathyroid hormone(iPTH),blood P,Ca-P product(Ca×P),fractional excretion of phosphate(FeP),and FGF23,as well as lower estimated glomerular filtration rate,blood Ca,24-hour urinary phosphate excretion(24-hour UPE),and Klotho levels(all Pn the OP group,25-(OH)-D3,blood Ca,and 24-hour UPE were negatively correlated with FGF23 and positively correlated with *** contrast,iPTH,blood Ca,Ca×P,and FeP exhibited a positive correlation with FGF23 and an inverse association with Klotho(all Pnd female gender were key fa

关键词： Diabetic kidney disease Osteoporosis Calcium-phosphorus metabolism FGF23 Klotho

Multi-channel retarding field analyzer for EAST

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Plasma Science and Technology 2018年第5期20卷 1-5页

作者： M HEnKEL D HOSCHEn Y LIAnG Y LI S C LIU D nICOLAI n SAnDRI G SATHEESWARAn n YAn H x zhang the EAST team Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung–PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)D-52425 JulichGermany Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China

A multi-channel retarding field analyzer（MC-RFA） including two RFA modules and two Langmuir probes to measure the ion and electron temperature profiles within the scrape-off layer was developed for investigations of the interplay between magnetic topology and plasma transport at the plasma *** MC-RFA probe for the stellarator W7-x and first measurements at the tokamak EAST was *** probe head allows simultaneous multichannel ion temperature as well as for electron temperature *** usability for radial correlation measurements of the measured ion currents is also given.

关键词： retarding field analyzer multi-channel EAST ion temperature diagnostic

Integration of Electrical Properties and Polarization Loss Modulation on Atomic Fe–n‑RGO for Boosting Electromagnetic Wave Absorption

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nano-Micro Letters 2025年第2期17卷 517-532页

作者： Kaili zhang Yuefeng Yan Zhen Wang Guansheng Ma Dechang Jia xiaoxiao Huang Yu Zhou State Key Laboratory of Precision Welding&Joining of Materials and Structures Harbin Institute of TechnologyHarbin 150001People’s Republic of China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China MIIT Key Laboratory of Advanced Structural‑Functional Integration Materials&Green Manufacturing Technology Harbin Institute of TechnologyHarbin 150001People’s Republic of China

Developing effective strategies to regulate graphene’s conduction loss and polarization has become a key to expanding its application in the electromagnetic wave absorption(EMWA)*** on the unique energy band structure of graphene,regulating its bandgap and electrical properties by introducing heteroatoms is considered a feasible ***,metal-nitrogen doping reduced graphene oxide(M–n-RGO)was prepared by embedding a series of single metal atoms M–n_(4) sites(M=Mn,Fe,Co,ni,Cu,Zn,nb,Cd,and Sn)in RGO using an n-coordination atom-assisted *** composites had adjustable conductivity and polarization to optimize dielectric loss and impedance matching for efficient EMWA *** results showed that the minimum reflection loss(RL_(min))of Fe–n-RGO reaches−74.05 dB(2.0 mm)and the maximum effective absorption bandwidth(EAB_(max))is 7.05 GHz(1.89 mm)even with a low filler loading of only 1 wt%.Combined with x-ray absorption spectra(xAFS),atomic force microscopy,and density functional theory calculation analysis,the Fe–n_(4) can be used as the polarization center to increase dipole polarization,interface polarization and defect-induced polarization due to d-p orbital hybridization and structural ***,electron migration within the Fe further leads to conduction loss,thereby synergistically promoting energy *** study demonstrates the effectiveness of metal-nitrogen doping in regulating the graphene′s dielectric properties,which provides an important basis for further investigation of the loss mechanism.

关键词： Electromagnetic wave absorption Fe-n-RGO Dipole polarization Conduction loss Impedance matching

Clinical effects of phospholipase D2 in attenuating acute pancreatitis

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World Journal of Gastroenterology 2025年第2期31卷 52-60页

作者： Jin-Wei niu Guo-Chao zhang Wu ning Hai-Bin Liu Hua Yang Chao-Feng Li Department of General Surgery China-Japan Friendship HospitalBeijing 100029China

BACKGROUnD The objective of the current study was to elucidate the clinical mechanism through which phospholipase D2(PLD2)exerted a regulatory effect on neutrophil migra-tion,thereby alleviating the progression of acute *** To elucidate the clinical mechanism through which PLD2 exerted a regulatory effect on neutrophil migration,thereby alleviating the progression of acute *** The study involved 90 patients diagnosed with acute pancreatitis,admitted to our hospital between March 2020 and november 2022.A retrospective analysis was conducted,categorizing patients based on Ranson score severity into mild(n=25),moderate(n=30),and severe(n=35)*** data was collected for each *** blot analysis assessed PLD2 protein expression in patient ***-time reverse transcription polymerase chain reaction was used to evaluate the mRnA expression of chemokine receptors associated with neutrophil *** levels of inflammatory factors in patients were detected using enzyme-linked immunosorbent *** migration tests were conducted to compare migration of neutrophils across groups and analyze the influence of PLD2 on neutrophil *** Overall data analysis did not find significant differences between patient groups(P>0.05).The expression of PLD2 protein in the severe group was lower than that in the moderate and mild groups(Pxpression level of PLD2 in the moderate group was also lower than that in the mild group(Pncreatitis is negatively correlated with PLD2 expression(r=-0.75,P=0.002).The mRnA levels of C-x-C chemokine receptor type 1,C-x-C chemokine receptor type 2,C-C chemokine receptor type 2,and C-C chemokine receptor type 5 in the severe group are significantly higher than those in the moderate and mild groups(Pnd the expression levels in the moderate group are also higher than those in the mild group(Pn,tumo

关键词： Phospholipase D2 neutrophil migration Acute pancreatitis Retrospective analysis Inflammatory response