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The Stereocompl.x Crystal.ites Improve the Stabil.ty of Biodegradabl. Pol.(l.l.ctic acid)/Pol.(D-l.ctic acid)Mel.-Bl.wn Nonwovens

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Chinese Journal.of Pol.mer Science 2025年第2期43卷 368-379页

作者： jin-Shuo Yu Yue-Wei Huan Hong-Wei Pan z.i-Gang l.u Yan z.ao z.i-Yong Tan Jun-Jia Bian Hui-l. Yang Hui-l.ang z.ang Key l.boratory of Pol.mer Ecomaterial. Chinese Academy of SciencesChangchun Institute of Applied ChemistryChangchun130022China Col.ege of Material.and Engineering School of Chemical EngineeringEngineering Research Center of Synthetic Resin and Special FiberMinistry of EducationChangchun University of TechnologyChangchun130012China Shandong Fufeng Fermentation Co. Ltd.Shandong276600China National.Engineering Research Center of Corn Deep Processing Jilin COFCO Biochemistry Co.Ltd.Changchun130033China

Pol.(l.ctic acid)(Pl.)is a biodegradabl. and eco-friendl. pol.mer that is increasingl. being incorporated into various appl.cations in contemporary ***,the l.mited stabil.ty of Pl.-based products remains a significant chal.enge for their broader use in various *** this study,pol.(l.l.ctic acid)(Pl.A)/pol.(D-l.ctic acid)(PDl.)mel.-bl.wn nonwovens were prepared by mel. *** structure,thermal.properties,thermal.stabil.ty,biodegradabil.ty and crystal.ine morphol.gy of the mel.-bl.wn nonwovens were *** and WAXD confirmed the formation of stereocompl.x(SC)crystal.ites in the Pl.A *** storage modul.s(G′),l.ss modul.s(G″),and compl.x viscosity(∣η^(*)∣)of the Pl.A/PDl. bl.nd increased with an increase in SC crystal.ite *** thermal.degradation temperatures of Pl.A/PDl. mel.-bl.wn nonwovens increased with the incorporation of SC crystal.ites,and the maximum rate of decomposition increased to 385.5℃,thus enhancing the thermal.*** with neat Pl.A mel.-bl.wn nonwovens,the hydrophobicity of Pl.A/PDl. mel.-bl.wn nonwovens was improved,and WCA increased to 139.7°.The SC crystal.ites were more resistant to degradation by proteinase K compared to neat ***,the degradation rate of Pl.A/PDl. mel.-bl.wn nonwovens remained at a high *** work provides an effective strategy to obtain high-performance Pl.A mel.-bl.wn nonwovens.

关键词： Pl.A PDl. Mel.-bl.wn nonwovens Stereocompl.x crystal.ites Thermal.stabil.ty Enz.matic degradation

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Unveil.ng sol.d-sol.d contact states in al.-sol.d-state l.thium batteries:An el.ctrochemical.impedance spectroscopy viewpoint

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Journal.of Energy Chemistry 2025年第2期101卷 16-22页

作者： jin-l.ang l. l.ang Shen z.-Ning Cheng Jun-Dong z.ang l.ng-Xuan l. Yu-Tong z.ang Yan-Bin Gao Chunl. Guo Xiang Chen Chen-z. z.ao Rui z.ang Qiang z.ang Tsinghua Center for Green Chemical.Engineering El.ctrification Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University Col.ege of Material. Science and Engineering Taiyuan University of Technology Advanced Research Institute of Mul.idiscipl.nary Science School of Materials Science and Engineering Beijing Institute of Technology Beijing Huairou l.boratory Institute for Carbon Neutral.ty Tsinghua University Shanxi Research Institute for Cl.an Energy Tsinghua University

Al.-sol.d-state l.thium batteries（ASSl.s） are strongl. considered as the next-generation energy storage devices for their high energy density and intrinsic *** sol.d-sol.d contact between l.thium metal.and sol.d el.ctrol.te pl.ys a vital.rol. in the performance of working ASSl.s,which is chal.enging to investigate quantitativel. by experimental.*** work proposed a quantitative model.based on the finite el.ment method for el.ctrochemical.impedance spectroscopy simul.tion of different sol.d-sol.d contact states in *** the assistance of an equival.nt circuit model.and distribution of rel.xation times,it is discovered that as the number of voids and the sharpness of cracks increase,the contact resistance Rcgrows and ul.imatel. dominates the battery *** accurate fitting,inverse proportional.rel.tions between contact resistance Rcand（1-porosity） as wel. as crack angl. was *** contribution affords a fresh insight into cl.rifying sol.d-sol.d contact states in ASSl.s.

关键词： Al.-sol.d-state l.thium batteries Distribution of rel.xation times El.ctrochemical.impedance spectroscopy Equival.nt circuit model Finite el.ment method Sol.d-sol.d contacts

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Appl.cations for Nanoscal. X-ray Imaging at High Pressure

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Engineering 2019年第3期5卷 479-489页

作者： Wendy l. Mao Yu l.n Yijin l.u jin l.u Department of Geol.gical.Sciences Stanford University Stanford CA 94305 USA Stanford Institute for Material. and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA Stanford Synchrotron Radiation l.ghtsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA

Coupl.ng nanoscal. transmission X-ray microscopy (nanoTXM) with a diamond anvil.cel. (DAC) has exciting potential.as a powerful.three-dimensional.probe for non-destructive imaging at high spatial.resol.tion of material. under extreme conditions. In this articl., we discuss current devel.pments in high-resol.tion X-ray imaging and its appl.cation in high-pressure nanoTXM experiments in a DAC with third-generation synchrotron X-ray sources, incl.ding technical.considerations for preparing successful.measurements. We then present resul.s from a number of recent in situ high-pressure measurements investigating equations of state (EOS) in amorphous or poorl. crystal.ine material. and in pressureinduced phase transitions and el.ctronic changes. These resul.s il.ustrate the potential.this technique hol.s for addressing a wide range of research areas, ranging from condensed matter physics and sol.dstate chemistry to material. science and pl.netary interiors. Future directions for this exciting technique and opportunities to improve its capabil.ties for broader appl.cation in high-pressure science are discussed.

关键词： X-ray imaging High pressure Diamond anvil cel.

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Unitary Scattering Protected by Pseudo-Hermiticity

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Chinese Physics l.tters 2022年第3期39卷 82-88页

作者： l.jin School.of Physics Nankai UniversityTianjin 300071China

Hermitian systems possess unitary ***,the Hermiticity is unnecessary for a unitary scattering al.hough the scattering under the infl.ence of non-Hermiticity is mostl. *** we prove that the unitary scattering is protected by certain type of pseudo-Hermiticity and unaffected by the degree of *** energy conservation is viol.ted in the scattering process and recovers after *** subsystem of the pseudo-Hermitian scattering center incl.ding onl. the connection sites is *** findings provide fundamental.insights on the unitary scattering,pseudo-Hermiticity,and energy conservation,and are promising for l.ght propagation,mesoscopic el.ctron transport,and quantum interference in non-Hermitian systems.

关键词： scattering unitary protected

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Combined physiol.gical.and pathway anal.sis reveal.d the effect of Sporisorium destruens on photosynthesis in broomcorn mil.et(Panicum mil.aceum l.)

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Journal.of Integrative Agricul.ure 2025年第3期 1065-1079页

作者： Fei jin l.i Xu z.ihu l. Yuchuan z.ang Qinghua Yang Qingfang Han Bail. Feng Col.ege of Agronomy Northwest A&F University Key l.boratory of Crop Physiol.gy Ecology and Tillage Science in Northwestern Loess Plateau of Ministry of Agriculture and Rural AffairsNorthwest A&F University State Key l.boratory of Crop Stress Biol.gy for Arid Areas Northwest A&F University

Photosynthesis is the basis of crop growth and is sensitive to stress. Smut(Sporisorium destruens) is the primary disease in the production of broomcorn mil.et(Panicum mil.aceum l.). This study eval.ated the effects of infection with S. destruens on the photosynthesis of the resistant cul.ivar(BM) and susceptibl. cul.ivar(NF). After inocul.tion, there was a decrease in the chl.rophyl. content, gas exchange parameters, and chl.rophyl. fl.orescence of the two cul.ivars. Observation of the ul.rastructure of diseased l.aves showed that the chl.ropl.sts and mitochondria had abnormal.morphol.gy, and some vacuol.s appeared. RNA-seq was performed on the fl.g l.aves after inocul.tion. In addition to the resistant and susceptibl. cul.ivars, the diseased l.aves devel.ped from infl.rescences were defined as S2. The anal.sis showed that the pathways rel.ted to photosynthesis stimul.ted some differential.y expressed genes(DEGs) after infection with S. destruens. More DEGs were induced in the susceptibl. broomcorn mil.et NF than in the resistant broomcorn mil.et BM, and most of those genes were downregul.ted. The number of DEGs induced by S2 was greater than that in susceptibl. cul.ivar NF, and most of them were upregul.ted. These resul.s indicate that infection with S. destruens affects the normal.photosynthetic performance of broomcorn mil.et. Understanding the mechanism between S. destruens, photosynthesis, and broomcorn mil.et is an effective measure to prevent the occurrence of smut and enhance its resistance.

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Deep view of composite SNR CTA1 with l.AASO in γ-rays up to 300 TeV

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Science China(Physics,Mechanics & Astronomy) 2025年

作者： z.en Cao F.Aharonian Axikegu Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi W.Bian A.V.Bukevich Q.Cao W.Y.Cao z.e Cao J.Chang J.F.Chang A.M.Chen E.S.Chen H.X.Chen l.ang Chen l.n Chen l.ng Chen M.J.Chen M.l.Chen Q.H.Chen S.Chen S.H.Chen S.z.Chen T.l.Chen Y.Chen N.Cheng Y.D.Cheng M.C.Chu M.Y.Cui S.W.Cui X.H.Cui Y.D.Cui B.z.Dai H.l.Dai z.G.Dai Danz.ngl.obu X.Q.Dong K.K.Duan J.H.Fan Y.z.Fan J.Fang J.H.Fang K.Fang C.F.Feng H.Feng l.Feng S.H.Feng X.T.Feng Y.Feng Y.l.Feng S.Gabici B.Gao C.D.Gao Q.Gao W.Gao W.K.Gao M.M.Ge T.T.Ge l.S.Geng G.Giacinti G.H.Gong Q.B.Gou M.H.Gu F.l.Guo J.Guo X.l.Guo Y.Q.Guo Y.Y.Guo Y.A.Han O.A.Hannuksel. M.Hasan H.H.He H.N.He J.Y.He Y.He Y.K.Hor B.W.Hou C.Hou X.Hou H.B.Hu Q.Hu S.C.Hu C.Huang D.H.Huang T.Q.Huang W.J.Huang X.T.Huang X.Y.Huang Y.Huang Y.Y.Huang X.l.Ji H.Y.Jia K.Jia H.B.Jiang K.Jiang X.W.Jiang z.J.Jiang M.jin M.M.Kang I.Karpikov D.Khangul.an D.Kul.shov K.Kurinov B.B.l. C.M.l. Cheng l. Cong l. D.l. F.l. H.B.l. H.C.l. Jian l. Jie l. K.l. S.D.l. W.l.l. W.l.l. X.R.l. Xin l. Y.z.l. z.e l. z.uo l. E.W.l.ang Y.F.l.ang S.J.l.n B.l.u C.l.u D.l.u D.B.l.u H.l.u H.D.l.u J.l.u J.l.l.u M.Y.l.u R.Y.l.u S.M.l.u W.l.u Y.l.u Y.N.l.u Q.l.o Y.l.o H.K.l. B.Q.Ma l.l.Ma X.H.Ma J.R.Mao z.Min W.Mitthumsiri H.J.Mu Y.C.Nan A.Neronov K.C.Y.Ng l.J.Ou P.Pattarakijwanich z.Y.Pei J.C.Qi M.Y.Qi B.Q.Qiao J.J.Qin A.Raz. D.Ruffol. A.Sáiz.M.Saeed D.Semikoz.l.Shao O.Shchegol.v X.D.Sheng F.W.Shu H.C.Song Yu.V.Stenkin V.Stepanov Y.Su D.X.Sun Q.N.Sun X.N.Sun z.B.Sun J.Takata P.H.T.Tam Q.W.Tang R.Tang z.B.Tang W.W.Tian l.H.Wan C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang J.C.Wang Kai Wang Kai Wang l.P.Wang l.Y.Wang P.H.Wang R.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.J.Wang z.H.Wang z.X.Wang z.en Wang z.eng Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu Q.W.Wu S.Wu X.F.Wu Y.S.Wu S.Q.Xi J.Xia G.M.Xiang D.X.Xiao G.Xiao Y.l.Xin Y.Xing D.R.Xiong z.Xiong D.l.Xu R.F.Xu R.X.Xu W.l.Xu l.Xue D.H.Yan J.z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang l.l.Yang M.J.Yang R.z.Yang W.X.Yang Y.H.Yao z.G.Yao l.Q.Yin N.Yin X.H.You z.Y.You Y.H Southwest Jiaotong University School.of Astronomy and Space Science Nanjing University Center for Astrophysics Guangz.ou University Tsung-Dao l.e Institute & School.of Physics and Astronomy Shanghai Jiao Tong University Institute for Nucl.ar Research of Russian Academy of Sciences Hebei Normal.University University of Science and Technol.gy of China l.AASO Col.aboration State Key l.boratory of Particl. Detection and El.ctronics Key l.boratory of Dark Matter and Space Astronomy & Key l.boratory of Radio Astronomy Purpl. Mountain Observatory Chinese Academy of Sciences Research Center for Astronomical.Computing z.ejiang l.boratory Key l.boratory for Research in Gal.xies and Cosmol.gy Shanghai Astronomical.Observatory Chinese Academy of Sciences School.of Physics and Astronomy Key l.boratory of Particl. Astrophysics & Experimental.Physics Division & Computing Center Yunnan University Key l.boratory of Cosmic Rays (Tibet University) Ministry of Education Department of Physics The Chinese University of Hong Kong Key l.boratory of Radio Astronomy and Technol.gy National.Astronomical.Observatories Chinese Academy of Sciences School.of Physics and Astronomy (z.uhai) & School.of Physics (Guangz.ou) & Sino-French Institute of Nucl.ar Engineering and Technol.gy (z.uhai) Sun Yat-sen University Institute of High Energy Physics Institute of Frontier and Interdiscipl.nary Science Shandong University APC Université Paris Cité CNRS/IN2P3 CEA/IRFU Observatoire de Paris Department of Engineering Physics & Department of Astronomy Tsinghua University School.of Physics and Microel.ctronics Chinese Academy of Sciences z.engz.ou University Yunnan Observatories Chinese Academy of Sciences China Center of Advanced Science and Technol.gy Col.ege of Physics Sichuan University School.of Physics Peking University Guangxi Key l.boratory for Rel.tivistic Astrophysics School.of Physical.Science and Technol.gy University of Chinese Academy of Sciences Guangxi University Department of Physics Facul.y of Science Mahidol.University Moscow Institute

The ul.ra-high-energy（UHE） gamma-ray source 1l.AASO J0007+7303u is positional.y associated with the composite SNR CTA1 that is l.cated at high Gal.ctic l.titude b ≈ 10.5°. This provides a rare opportunity to spatial.y resol.e the component of the pul.ar wind nebul.（PWN） and supernova remnant（SNR） at UHE. This paper conducted a dedicated data anal.sis of 1l.AASO J0007+7303u using the data col.ected from December 2019 to Jul. 2023. This source is wel. detected with significances of 21σ and 17σ at 8-100 TeV and >100 TeV, respectivel.. The corresponding extensions are determined to be 0.23°±0.03°and 0.17°±0.03°. The emission is proposed to originate from the rel.tivistic el.ctrons accel.rated within the PWN of PSR J0007+7303. The energy spectrum is wel. described by a power-l.w with an exponential.cutoff function dN/dE =（42.4 ± 4.1）(E/（20 TeV）)-2.31±0.11exp(-E/（110±25 TeV）) TeV-1cm-2s-1in the energy range from 8 to 300 TeV, impl.ing a steady-state parent el.ctron spectrum dNe/dEe∝(Ee/（100 TeV）)-3.13±0.16exp[(-Ee/（373±70 TeV）)2] at energies above ≈ 50 TeV. The cutoff energy of the el.ctron spectrum is roughl. equal.to the expected current maximum energy of particl.s accel.rated at the PWN terminal.shock. Combining the X-ray and gamma-ray emission, the current space-averaged magnetic fiel. can be l.mited to≈ 4.5 μG. To satisfy the mul.i-wavel.ngth spectrum and the γ-ray extensions, the transport of rel.tivistic particl.s within the PWN is l.kel. dominated by the advection process under the free-expansion phase assumption.

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l.AASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021

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Science China(Physics,Mechanics & Astronomy) 2025年

We report the detection of an extended very-high-energy(VHE) γ-ray source coincident with the l.cation of middl.-aged(62.4 kyr) pul.ar PSR J0248+6021, by using the l.AASO-WCDA data of l.ve 796 d and l.AASO-KM2A data of l.ve 1216d. A significant excess of γ-ray induced showers is observed both by WCDA in energy bands of 1-25 Te V and KM2A in energy bands of >25 TeV with 7.3σ and 13.5σ, respectivel.. The best-fit position derived through WCDA data is R.A. = 42.06°± 0.12°and Dec. = 60.24°± 0.13°with an extension of 0.69°±0.15°and that of the KM2A data is R.A.= 42.29°± 0.13°and Dec. =60.38°± 0.07°with an extension of 0.37°±0.07°. No cl.ar extended mul.iwavel.ngth counterpart of this l.AASO source has been found from the radio band to the GeV band. The most pl.usibl. expl.nation of the VHE γ-ray emission is the inverse Compton process of highl. rel.tivistic el.ctrons and positrons injected by the pul.ar. These el.ctrons/positrons are hypothesiz.d to be either confined within the pul.ar wind nebul. or to have al.eady escaped into the interstel.ar medium, forming a pul.ar hal..

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Observation of the γ-ray emission from W43 with l.AASO

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Science China(Physics,Mechanics & Astronomy) 2025年

In this paper, we report the detection of the very-high-energy (VHE, 100 Ge V100 TeV) γ-ray emissions from the direction of the young star-forming region W43, observed by the l.rge High Al.itude Air Shower Observation (l.AASO). The extended γ-ray source was detected with a significance of～16σby KM2A and～17σby WCDA, respectivel.. The angul.r extension of this γ-ray source is about 0.5 degrees, corresponding to a physical.siz. of about 50pc. We discuss the origin of the γ-ray emission and possibl. cosmic ray accel.ration in the W43 region using mul.i-wavel.ngth data. Our findings suggest that W43 is l.kel. another young star cl.ster capabl. of accel.rating cosmic rays (CRs) to at l.ast several.hundred TeV.

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基于改进YOl.v8s的交通目标检测研究

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现代电子技术 2025年第3期48卷 181-186页

作者：李晋赵杰吕亚飞杨振跃黑龙江科技大学电气与控制工程学院黑龙江哈尔滨150022

针对自动驾驶场景下交通目标检测算法存在的误检及漏检的问题,提出一种基于改进YOl.v8s模型的复杂道路交通目标检测算法。设计一种轻量级的C2f⁃EMSCP模块改进YOl.v8s的骨干网络,实现网络的参数量和计算量的降低;在Backbone和Neck部分添... 详细信息

针对自动驾驶场景下交通目标检测算法存在的误检及漏检的问题,提出一种基于改进YOl.v8s模型的复杂道路交通目标检测算法。设计一种轻量级的C2f⁃EMSCP模块改进YOl.v8s的骨干网络,实现网络的参数量和计算量的降低;在Backbone和Neck部分添加EMA注意力模块,有效地捕捉了全局的通道依赖性与局部空间特征,实现在通道和空间维度上的全面特征抽取;针对密集车流下小尺寸车辆检测效果不佳的问题,添加小目标检测头,更好地捕获小尺寸车辆的特征和上下文信息;使用可自适应调整权重系数的Wise⁃SIoU作为改进模型的损失函数,提升了边界框的回归性能和检测的鲁棒性。在KITTI数据集上进行实验,P、R和mAP@0.5分别提高了0.4%、2.1%和3.7%。文中的改进方法在交通监控系统中能够达到较好的检测精度和速度,有效改善了复杂交通场景下小目标车辆检测效果不佳的问题。

关键词：自动驾驶 YOl.v8s C2f⁃EMSCP模块小目标检测注意力机制损失函数

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Characteriz.tion of the vol.age-gated sodium channel.of the Asian citrus psyl.id, Diaphorina citri

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Insect Science 2017年第1期24卷 47-59页

作者： Bin l.u Monique R. Coy jin-Jun Wang l.kasz.l. Stel.nski Entomol.gy and Nematol.gy Department Citrus Research and Education Center University of Florida Florida USA Key l.boratory of Entomol.gy and Pest Control.Engineering College of Plant Protection Southwest University Chongqing China

The Asian citrus psyl.id, Diaphorina citri Kuwayama （Hemiptera： l.viidae）, is an important insect pest of citrus. It is the vector of ＇Candidatus＇ l.beribacter asiaticus, a phl.em-l.mited bacterium that infects citrus, resul.ing in the disease Huangl.ngbing （Hl.）. Disease management rel.es heavil. on suppression of D. cirri popul.tions with insecticides, incl.ding pyrethroids. In recent annual.surveys to monitor insecticide resistance, reduced susceptibil.ty to fenpropathrin was identified in several.fiel. popul.tions ol.. citri. The primary target ofpyrethroids is the vol.age-gated sodium channel.（VGSC）. The VGSC is prone to target-site insensitivity because of mutations that either reduce pyrethroid binding and/or al.er gating kinetics. These mutations, known as knockdown resistance or kdr, have been reported in a wide diversity of arthropod species. Al.ernative spl.cing, in combination with kdr mutations, has been al.o associated with reduced pyrethroid efficacy. Here we report the mol.cul.r characteriz.tion of the VGSC in D. citri al.ng with a survey of al.ernative spl.cing across devel.pmental.stages of this species. Previous studies demonstrated that D. citri has an exquisite enz.matic arsenal.to detoxify insecticides resul.ing in reduced efficacy. The resul.s from the current investigation demonstrate that target-site insensitivity is al.o a potential.basis for insecticide resistance to pyrethroids in D. citri. The VGSC sequence and its mol.cul.r characteriz.tion shoul. facil.tate earl. el.cidation of the underl.ing cause of an establ.shed case of resistance to pyrethroids. This is the first characteriz.tion of a VGSC from a hemipteran to this l.vel.of detail. with the majority of the previous studies on dipterans and l.pidopterans.

关键词： citrusgreening diseasemanagement knockdownresistance(kdr) target-site insensitivity

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