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Defence Technology（防务技术） 2024年第1期31卷 288-294页

作者： Er-hai An xiao-xia Li Cun-juan yu Ying-xin Tan Zi-jun Fan Qing-xia Li Peng Deng Xiong Cao School of Environment and Safety Engineering North University of ChinaTaiyuan030051PR China College of Safety and Emergency Management Engineering Taiyuan University of Science and TechnologyTaiyuan030024PR China

Fe/N-based biomass porous carbon composite(Fe/N-p Carbon) was prepared by a facile high-temperature carbonization method from biomass,and the effect of Fe/N-p Carbon on the thermal decomposition of energetic molecular perovskite-based material DAP-4 was *** porous carbonaceous materials was considered as the micro/nano support layers for in situ deposition of Fe/N ***/Np Carbon was prepared simply by the high-temperature carbonization *** was found that it showed the inherent catalysis properties for thermal decomposition of *** heat release of DAP-4/Fe/N-p Carbon by DSC curves tested had increased slightly,compared from DAP-4/Fe/N-p *** decomposition temperature peak of DAP-4 at the presence of Fe/N-p Carbon had reduced by 79°C from384.4°C(pure DAP-4) to 305.4°C(DAP-4/Fe/N-p Carbon-3).The apparent activation energy of DAP-4thermal decomposition also had decreased by 29.1 J/*** possible catalytic decomposition mechanism of DAP-4 with Fe/N-p Carbon was proposed.

关键词： Biomass materials Porous carbon DAP-4 Thermal decomposition Facile method

Risk factors for postpartum posttraumatic stress disorder after emergency admission

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World Journal of Emergency Medicine 2024年第2期15卷 121-125页

作者： Fengxia Du jun Zha Yan Li Lichao Fang Shuyu xia Youjia yu Department of Obstetrics Suzhou Xiangcheng People’s HospitalSuzhou 215131China Department of Anesthesiology the Second Affiliated Hospital of Wannan Medical CollegeWuhu 241000China Department of Anesthesiology Suzhou Xiangcheng People’s HospitalSuzhou 215131China Department of Emergency and Intensive Care Unit Suzhou Xiangcheng People’s HospitalSuzhou 215131China

BACKGROUND:Postpartum posttraumatic stress disorder(PTSD)can occur in women who give birth after emergency *** identification of risk factors for this condition is crucial for developing effective preventive *** retrospective study aimed to explore the incidence and risk factors for postpartum PTSD in women who give birth after emergency ***:Medical records of women who gave birth after emergency admission were collected between March 2021 and April *** patients’general conditions and perinatal clinical indicators were *** puerperae were divided into PTSD group and control group based on symptom occurrence at six weeks *** logistic regression analysis was performed to identify risk ***:A total of 276 puerperae were included,with a PTSD incidence of 20.3% at six weeks *** logistic regression analysis identified emergency cesarean section(odds ratio[OR]=2.102;95%confidence interval[CI]:1.114-3.966,P=0.022),admission to the emergency department after midnight(12:00 AM)(OR=2.245;95%CI:1.170-4.305,P<0.001),and cervical dilation(OR=3.203;95%CI:1.670–6.141,P=0.039)as independent risk factors for postpartum *** pump use(OR=0.500;95%CI:0.259–0.966,P=0.015)was found to be a protective factor against postpartum ***:Emergency cesarean section,admission to the emergency department after midnight,and cervical dilation were identified as independent risk factors for postpartum PTSD,while analgesic pump use was a protective *** findings provide insights for developing more effective preventive measures for women who give birth after emergency admission.

关键词： Risk factors Posttraumatic stress disorder Emergency Delivery

Illuminating spin-crossover octanuclear metal-organic cages

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Science China Chemistry 2024年第4期67卷 1208-1215页

作者： Zhi-Kun Liu Alyona A.Starikova yu-xia Li Ke Sun Meng yu Zi-Shuo Yao jun Tao Key Laboratory of Cluster Science of Ministry of Education School of Chemistry and Chemical EngineeringLiangxiang CampusBeijing Institute of TechnologyBeijing 102488China Institute of Physical and Organic Chemistry Southern Federal UniversityRostov-on-Don 344090Russia

Spin-crossover(SCO)materials that reversibly switch between high-and low-spin states have potential for the storage of spin state-relative information,and have gained much attention incorporating secondary physical properties,such as fluorescence and magneto-optical *** this study,we synthesized three octanuclear metal-organic cages(MOCs)using tetraphenylethylene-based luminophores,aldehydes,and Fe^(Ⅱ)salts,by subcomponent self-assembly approach,namely[Fe1]-[Fe3].By controlling the ligand-field strength and guest encapsulation,we finely tuned their SCO *** them,MOC[Fe2]displayed nearly complete SCO behavior in the solid state,which is rare for high-nuclearity *** also demonstrated the coupling of SCO with fluorescence emission in these MOCs by using isostructural Zn^(Ⅱ)complexes([Zn1]-[Zn3])as control experiments,for the first *** calculations revealed the energy-transfer mechanism between fluorophores and SCOactive centers,which emphasizes the significant contribution of d-d transitions in the interplay between the occurrence of SCO and fluorescence emission.

关键词： metal-organic cages spin crossover fluorescence switching materials DFT calculation

Thermal Transport through Solid-Liquid Interface:Effect of the Interfacial Coupling and Nanostructured Surfaces

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Journal of Thermal Science 2022年第4期31卷 1167-1179页

作者： LI Haiyang WANG jun xia Guodong MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation Beijing Key Laboratory of Heat Transfer and Energy Conversion Beijing University of TechnologyBeijing 100124China

The solid-liquid interfacial thermal transport depends on the physical properties of the interfaces,which have been studied extensively in open ***,the fundamental understanding on the mechanism of the solid-liquid interfacial thermal transport is far from *** the present paper,heat transfer through solid-liquid interfaces is studied based on the non-equilibrium molecular dynamics *** is shown that the interfacial heat transfer can be enhanced by increasing interfacial coupling strength or introducing the nanostructured *** underlying mechanism of the interfacial thermal transport is analyzed based on the calculation results of the heat flux distribution,potential mean force,and the vibrational density of states at the interfacial *** is found that the interfacial thermal transport is dominated by the kinetic and virial contributions in the interface *** enhancement of the interfacial heat transfer can be attributed to the fluid adsorption on the solid surface under a strong interfacial interaction or by the nanostructured solid surfaces,which reduce the mismatch of the vibrational density of states at the solid-liquid interface region.

关键词： solid-liquid interface molecular dynamics simulation thermal resistance nanostructure

Generation of Enhanced Three-Mode Continuously Variable Entanglement

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Chinese Physics Letters 2011年第9期28卷 24-27页

作者： yu You-Bin WANG Huai-jun FENG Jin-xia School of Science Ningbo University of TechnologyNingbo 315211 State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-ElectronicsShanxi UniversityTaiyuan 030006

The generation of enhanced three-mode continuously variable(CV)entanglement via difference-frequency amplification in an optical cavity above the threshold is *** quantum entanglement characteristics among the pump,signal,and idler beams are demonstrated by applying a sufficient inseparability criterion for CV entanglement proposed by van Loock and *** three-mode CV entanglement with different frequencies can be generated in this simple system when the optical cavity operates above its threshold,and the best three-mode CV entanglement can be obtained when the pump threshold parameter is modulated at aboutσ=1.3.

关键词： applying criterion quantum

Strong Embeddability for Groups Acting on Metric Spaces

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Chinese Annals of Mathematics,Series B 2019年第2期40卷 199-212页

作者： jun xia xianjin WANG College of Mathematics and Statistics Chongqing University

The strong embeddability is a notion of metric geometry, which is an intermediate property lying between coarse embeddability and property A. In this paper, the permanence properties of strong embeddability for groups acting on metric spaces are studied. The authors show that a finitely generated group acting on a finitely asymptotic dimension metric space by isometries whose K-stabilizers are strongly embeddable is strongly embeddable. Moreover, they prove that the fundamental group of a graph of groups with strongly embeddable vertex groups is also strongly embeddable.

关键词： Strong embeddability Groups action Graph of groups Relative hyperbolic groups

Enhancement of the geomagnetic field reduces the phototaxis of rice brown planthopper Nilaparvata lugens associated with frataxin down-regulation

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Insect Science 2020年第5期27卷 1043-1052页

作者： Ying-Chao Zhang Gui-jun Wan Wei-Hong Wang yue Li Yang yu yu-xia Zhang Fa-jun Chen Wei-Dong Pan Beijing Key Laboratory of Bioelectromagnetics Institute of Electrical EngineeringChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Department of Entomology College of Plant ProtectionNanjing Agricultural UniversityNanjingChina

The geomagnetic field(GMF)is an environmental cue that provides directional information for *** intensity of GMF is varied over space and *** in the GMF intensity afect the navigation of animals and their *** this study,the phototaxis of the migratory insect rice planthopper Nilaparvata lugens(***)and frataxin in ***(NI-fh),which is a mitochondrial protein required for cellular iron homeostasis and iron-sulfur cluster assembly,were investigated by using different intensities of magnetic *** the results,individuals of *** showed decreased phototaxis when reared and tested in a behavioral arena under a strong magnetic *** the reduction in performance,an accompanying ffect of the strong magnetic field condition was a reduced level of Nl-fh-messenger RNA,and a NI-fh knockdown indeed impaired the phototactic behavior in a tested sample of *** leads to the conclusion that the expression of frataxin is dependent on the strength of the surrounding magnetic field and that functional frataxin facilitates phototactic behavior in ***.

关键词： frataxin ma gnetic field migratory Nilaparvata lugens phototaxis

工业智能化、要素流动与制造业创新——来自中国283个城市的经验证据

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山西师大学报（社会科学版） 2025年第1期52卷 45-57页

作者：宁楠刘俊霞西北大学经济管理学院西安710127 西安翻译学院国际商学院西安710105

提升制造业创新能力是新质生产力发展题中应有之义。基于283个地级市数据,实证分析了工业智能化及其与要素流动协同助推制造业创新的效应及多元化特征。研究发现,工业智能化推动了制造业创新,作用效果受制造业就业规模与城市规模的正向... 详细信息

提升制造业创新能力是新质生产力发展题中应有之义。基于283个地级市数据,实证分析了工业智能化及其与要素流动协同助推制造业创新的效应及多元化特征。研究发现,工业智能化推动了制造业创新,作用效果受制造业就业规模与城市规模的正向调节,且在非资源型城市、工业占比较低和老龄化程度较低的城市中表现更强。与要素流动的协同及其空间溢出是工业智能化驱动制造业创新的两大重要机制,并且主要依赖于资本和高技能劳动力要素流动。进一步分析发现,要素流动与工业智能化的协同联动对制造业创新的空间溢出在东部地区表现为“以邻为伴”,在中西部地区则表现为“以邻为壑”。因此,要加快智能化转型,充分发挥工业智能化的要素配置作用,共同推动提升城市制造业创新效能。

关键词：工业智能化要素流动制造业创新空间溢出

Characterization of the structural details of residual austenite in the weld metal of a 9Cr1MoNbV welded rotor

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International Journal of Minerals,Metallurgy and Materials 2014年第6期21卷 563-568页

作者： xia Liu Hui-jun Ji Peng Liu Peng Wang Feng-gui Lu yu-lai Gao Department of Mechanical Engineering Tsinghua University Shanghai Turbine Plant of Shanghai Electric Power Generation Equipment Co. Ltd. School of Materials Science and Engineering Shanghai University School of Materials Science and Engineering Shanghai Jiao Tong University

The existence of residual austenite in weld metal plays an important role in determining the properties and dimensional accuracy of welded rotors. An effective corrosive agent and the metallographic etching process were developed to clearly reveal the characteristics of residual austenite in the weld metal of a 9Cr1MoNbV welded rotor. Moreover, the details of the distribution, shape, length, length-to-width ratio, and the content of residual austenite were systematically characterized using the Image-Pro Plus image analysis software. The results revealed that the area fraction of residual austenite was approximately 6.3% in the observed weld seam; the average area, length, and length-to-width ratio of dispersed residual austenite were quantitatively evaluated to be （5.5 ± 0.1）μm2, （5.0 ± 0.1）μm, and （2.2 ± 0.1）, re-spectively. The newly developed corrosive agent and etching method offer an appropriate approach to characterize residual austenite in the weld metal of welded rotors in detail.

关键词： steel research austenite characterization weld metal color metallography

Deciphering the molecular mechanisms of Simiaowan in the treatment of hyperuricemia: in vivo and in silico approaches

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Traditional Medicine Research 2025年第2期10卷 37-54页

作者： Yong-Chang Zeng jun-Hong Wu Dan-Dan Xu Kang He Chang-Qing Liu Li-Fei Song Zheng-Zhi Wu Qian-Qian Jiang Shao-yu Liang Department of Neurology The First Affiliated Hospital of Shenzhen UniversityShenzhen 518020China Pharmaceutical Department The Affiliated TCM Hospital of Guangzhou Medical UniversityGuangzhou 510000China School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China Guangzhou Zeli Medical Technology Co. Ltd.Guangzhou 510700China

Background:Simiaowan(SMW),a well-known traditional Chinese medicine,has been employed to treat hyperuricemia(HUA)and gout for ***,the bioactive components and underlying mechanisms have not been *** objective of this study was to identify the active components and potential mechanisms of SMW by integrating pharmacological experimentation,serum pharmacochemistry,network pharmacology and molecular ***:HUA rats modelling by high-fat/high-sugar diet and potassium oxonate/adenine oral administration were used to evaluate the pharmacodynamic effects of ***-Q-Exactive-MS/MS was employed to detect the bioactive components present in SMW-containing *** pharmacology and molecular docking were utilized to elucidate the potential targets and underlying ***:SMW effectively ameliorated HUA rats via the inhibition of uric acid(UA)production,promotion of UA excretion,improvement of lipid and glucose metabolic abnormalities,antioxidant,anti-inflammatory and anti-insulin resistance effects.A total of 73 compounds detected in SMW-containing serum were identified as potential active components,with alkaloids,flavonoids,organic acids,and terpenoids emerging as the primary active *** 203 corresponding targets were obtained as SMW anti-HUA/gout targets,which mainly participated in apoptosis,insulin resistance,TNF,PI3K-Akt,HIF-1,NF-κB,MAPK,IL-17 and TLR signaling *** docking indicated that active compounds(***,phellodendrine,quercetin,formononetin,ferulic acid)had superior binding abilities to the key targets(*** carrier family 22 member 12(URAT1),solute carrier family 22 member 6(OAT1),ATP-binding cassette sub-family G member 2(ABCG2),solute carrier family 2,facilitated glucose transporter member 9(GLUT9),xanthine dehydrogenase/oxidase(XDH),transcription factor p65(RELA),toll-like receptor 4(TLR4),prostaglandin G/H synthase 2(PTGS2),caspase-3(CASP3),insulin(INS)).Conclusion:S

关键词： hyperuricemia network pharmacology serum pharmacochemistry Simiaowan UPLC-Q-Exactive-MS/MS