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Actively tunable polarization-sensitive multiband absorber based on graphene

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Chinese Physics B 2020年第11期29卷 336-342页

作者： Ai-Li Cao Kun zhang jia-rui zhang Yan Liu Wei-Jin Kong College of Physics Science Center for Marine Observation and CommunicationsQingdao UniversityQingdao 266071China

We design an actively tunable polarization-sensitive multiband absorber in the mid-infrared region,which consists of stacked graphene multilayers separated by dielectric layers on a metal *** from the anisotropic structure,the absorber has dual absorption bands with almost perfect absorption at different wavelengths under the x and y *** the electric field amplitude distributions and the surface currents,we find that the absorption peaks under the same polarization are excited in the graphene layers ***,more absorption bands can be achieved by increasing the graphene *** the Fermi energy of the graphene layers,the working wavelengths of the polarization-sensitive multiband absorbers can be tuned actively,and thus achieving a wide band regulation ***,the peak number and the peak strength of the multiband absorber can be actively controlled by the polarization angle as *** also propose a method to design an actively tunable polarization-sensitive multiband absorber,which may have potential applications in mid-infrared devices,such as polarization-sensitive filters and detectors.

关键词： multiband absorber polarization-sensitive graphene band regulation

Quantum calculation of axion-photon transition in electromagnetodynamics for cavity haloscope

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Chinese Physics C 2023年第12期47卷 45-55页

作者：李佟张瑞珈 School of Physics Nankai UniversityTianjin 300071China

The Witten effect implies the presence of electric charge of magnetic monople and the possible relationship between axion and *** axion-dyon dynamics can be reliably built based on the quantum electromagnetodynamics(QEMD)which was developed by Schwinger and Zwanziger in the 1960's.A generic low-energy axionphoton effective field theory can also be realized in the language of“generalized symmetries”with higher-form symmetries and background gauge *** this work,we implement the quantum calculation of the axion-single photon transition rate inside a homogeneous electromagnetic field in terms of the new axion interaction Hamiltonian in *** quantum calculation can clearly imply the enhancement of conversion rate through resonant cavity in axion haloscope *** also show the promising potentials on the cavity search of new axion-photon couplings.

关键词： axion electromagnetodynamics cavity haloscope

Edims: an event-driven internal memory synchronized readout prototype ASIC chip developed for HFRS-TPC

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Nuclear Science and Techniques 2023年第12期34卷 177-189页

作者： Ming‑Yu Yang Yi Qian Tian‑Lei Pu Wei‑jian Lu Zhi‑Kun Sun Hong‑Yun Zhao jia‑rui zhang Zheng‑Qiang Liu Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Joint Department for Nuclear Physics Lanzhou University and Institute of Modern PhysicsCASLanzhou 730000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong LaboratoryHuizhou 516000China

HFRS(HIAF FRagment Separator) will be the radioactive secondary beam separation line on High-Intensity heavy-ion Accelerator Facility(HIAF) in China. Several TPC detectors, with high count rates, are planned for particle identification and beam monitoring at HFRS. This paper presents an event-driven internal memory and synchronous readout(EDIMS)prototype ASIC chip. The aim is to provide HFRS-TPC with high-precision time and charge measurements with high count rates and a large dynamic range. The first prototype EDIMS chip integrated 16 channels and is fabricated using a 0.18-μm CMOS process. Each channel consists of a charge-sensitive amplifier, fast shaper, slow shaper, peak detect-and-hold circuit, discriminator with time-walk compensation, analog memory, and FIFO. The token ring is used for clock-synchronous readout. The chip is taped and tested.

关键词： GEM-TPC HFRS Readout ASIC Self-trigger Timestamp TWC PDH SCA Token ring

Comparative analysis of diverse toxins from a new pharmaceutical centipede,Scolopendra mojiangica

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Zoological Research 2020年第2期41卷 138-147页

作者： Zi-Chao Liu Jin-Yang Liang Xin-Qiang Lan Tao Li jia-rui zhang Fang Zhao Geng Li Pei-Yi Chen Yun zhang Wen-Hui Lee Feng Zhao Key Laboratory of Ethnic Medical Resources Research and Southeast Asian International Cooperation of Yunnan Universities Department of Biology and ChemistryPuer UniversityPuerYunnan 665000China Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences&Yunnan Province Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Engineering Research Center for Exploitation and Utilization of Leech Resources in Universities of Yunnan Province School of Agronomy and Life SciencesKunming UniversityKunmingYunnan 650214China Key Laboratory of Active Molecules and Drug Development Puer UniversityPuerYunnan 665000China Kunming College of Life Science University of Chinese Academy of SciencesKunmingYunnan 650204China Institute of Comparative Study of Traditional Materia Medica Institute of Integrative Medicine of Fudan UniversityShanghai 200032China Nanshan College Guangzhou Medical UniversityGuangzhouGuangdong 511436China

As the oldest venomous animals,centipedes use their venom as a weapon to attack prey and for *** venom,which contains many bioactive and pharmacologically active compounds,has been used for centuries in Chinese medicine,as shown by ancient *** on comparative analysis,we revealed the diversity of and differences in centipede toxin-like molecules between Scolopendra mojiangica,a substitute pharmaceutical material used in China,and *** *** than 6000 peptides isolated from the venom were identified by electrospray ionization-tandem mass spectrometry(ESI-MS/MS)and inferred from the *** a result,in the proteome of ***,246 unique proteins were identified:one in five were toxin-like proteins or putative toxins with unknown function,accounting for a lower percentage of total proteins than that in *** mining identified approximately 10 times more toxin-like proteins,which can characterize the precursor structures of mature toxinlike ***,the constitution and quantity of the toxin transcripts in these two centipedes were *** toxicity assays,the crude venom showed strong insecticidal and hemolytic *** findings highlight the extensive diversity of toxin-like proteins in *** and provide a new foundation for the medical-pharmaceutical use of centipede toxin-like proteins.

关键词： Centipede Toxins Pharmaceutical use Proteotranscriptomic analysis

Li,Na,and Cs-based metal-organic frameworks for room temperature phosphorescence applications

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Science China Chemistry 2025年

作者： jiaqi Ma rui Feng Yanyuan jia Mingshi zhang Shuo Guo College of Chemistry and Chemical Engineering Inner Mongolia University School of Materials Science and Engineering Smart Sensing Interdisciplinary Science Center Nankai University & TKL of Metal and Molecule Based Material Chemistry Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University Department of Chemistry and Biochemistry University of California San Diego

The conventional design of metal-organic frameworks (MOFs) with room-temperature phosphorescence (RTP) mostly relies on using heavy metals,as the heavy atom effect can effectively increase the efficiency of intersystem crossing (ISC) to get a better phosphorescence *** the first time,we reported the highly efficient RTP of a lithium-based MOF IMU-101 with a lifetime (τ) of 299 ms and a quantum yield (QY) of 4.91%.In addition,MOFs IMU-102 and IMU-103,with sodium and cesium as metal nodes,were successfully *** phosphorescence properties of this series of alkali metal MOFs were systematically studied and *** crystallography and computational calculation show that the mechanism for achieving RTP for this material lies in the ultrashort coordination bond of Li,which enables the reduction of non-radiative ***-101,as a cheap and environmentally friendly room-temperature phosphorescent material,has been further developed into composite polymer inks and bulk *** makes them promising for applications in anti-counterfeiting and information encryption.

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Mitophagy in acute central nervous system injuries:regulatory mechanisms and therapeutic potentials

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Neural Regeneration Research 2025年第9期20卷 2437-2453页

作者： Siyi Xu Junqiu jia rui Mao Xiang Cao Yun Xu Department of Neurology Nanjing Drum Tower HospitalClinical College of Jiangsu UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalChinese Academy of Medical Science&Peking Union Medical CollegeNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases Nanjing UniversityNanjingJiangsu ProvinceChina jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Nanjing Neurology Medical Center NanjingJiangsu ProvinceChina

Acute central nervous system injuries,including ischemic stro ke,intracerebral hemorrhage,subarachnoid hemorrhage,traumatic brain injury,and spinal co rd injury,are a major global health *** optimal therapies and improving the long-term neurological functions of patients with acute central nervous system injuries are urgent *** are susceptible to damage after acute central nervous system injury,and this leads to the release of toxic levels of reactive oxygen species,which induce cell ***,a selective form of autophagy,is crucial in eliminating redundant or damaged mitochondria during these *** evidence has highlighted the significant role of mitophagy in acute central nervous system *** this review,we provide a comprehensive overview of the process,classification,and related mechanisms of *** also highlight the recent developments in research into the role of mitophagy in various acute central nervous system injuries and drug therapies that regulate *** the final section of this review,we emphasize the potential for treating these disorders by focusing on mitophagy and suggest future research paths in this area.

关键词： autophagy intracerebral hemorrhage ischemic stroke mitochondria mitochondrial biogenesis mitochondrial quality control mitophagy spinal cord injury subarachnoid hemorrhage traumatic brain injury

Heterogeneous self-healing assembly of MXene and graphene oxide enables producing free-standing and self-reparable soft electronics and robots

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Science Bulletin 2022年第5期67卷 501-511,M0004页

作者： jia-Nan Ma Yong-Lai zhang Yu-Qing Liu Dong-Dong Han jiang-Wei Mao jia-rui zhang Wu-Chao Zhao Hong-Bo Sun State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision InstrumentTsinghua UniversityBeijing 100084China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

Self-healing materials(SHMs)with unique mechanical and electronic properties are promising for self-reparable electronics and ***,the self-healing ability of emerging two-dimensional(2D)materials,for instance,MXenes,has not been systematically investigated,which limits their applications in self-healing ***,we report the homogeneous self-healing assembly(homoSHA)of MXene and the heterogeneous self-healing assembly(hetero-SHA)of MXene and graphene oxide(GO)under moisture *** self-healing mechanism has been attributed to the hydration induced interlayer swelling of MXene and GO and the recombination of hydrogen bond networks after water *** multiform hetero-SHA of MXene and GO not only enables facile fabrication of free-standing soft electronics and robots,but also endows the resultant devices with damage-healing *** proof-of-concept demonstrations,free-standing soft electronic devices including a generator,a humidity sensor,a pressure sensor,and several robotic devices have been *** hetero-SHA of MXene and GO is simple yet effective,and it may pioneer a new avenue to develop miniature soft electronics and robots based on 2D materials.

关键词： MXene elf-healing Graphene oxide Soft electronics Soft robots

A Review on Thermal Management of Li-ion Battery:from Small-Scale Battery Module to Large-Scale Electrochemical Energy Storage Power Station

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Journal of Thermal Science 2025年第1期34卷 1-23页

作者： CHEN Zhifeng jia Li YIN Liaofei DANG Chao REN Honglei zhang Zhiqiang Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale School of MechanicalElectronic and Control EngineeringBeijing Jiaotong University

Li-ion battery is an essential component and energy storage unit for the evolution of electric vehicles and energy storage technology in the ***,in order to cope with the temperature sensitivity of Li-ion battery and maintain Li-ion battery safe operation,it is of great necessary to adopt an appropriate battery thermal management system(BTMS).In this paper,the current main BTM strategies and research hotspots were discussed from two aspects:small-scale battery module and large-scale electrochemical energy storage power station(EESPS).The practical application situation,advantages and disadvantages,and the future development trend of each heat dissipation method(air,liquid,PCM,heat pipe,hybrid cooling) were described in *** them,the air cooling and liquid cooling were reviewed in-depth based on the engineering *** PCM,heat pipe and hybrid cooling were reviewed extensively based on the latest *** research provides a comprehensive understanding for the BTMS in all scales.

关键词： battery thermal management cooling methods large-scale electrochemical energy storage power station small-scale battery module

High-dense nanocrystalline W-based alloy prepared by hot isostatic pressing with uniform microstructure, ultrahigh hardness and good thermal stability

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Tungsten 2025年第1期7卷 120-136页

作者： Zao-Ming Wu Lin He Lin-Sen Ye Xiao-Feng Yang jia-jia zhang Hong-Bo Lei Institute of Materials China Academy of Engineering Physics

High-density uniform microstructure nanocrystalline W-10wt.% Cr-5wt.% Y（W-10Cr-5Y） alloy with an average grain size of 85 nm and a relative density of 99.8% was successfully prepared.W-Cr-Y alloys with different amounts of second-phase particles were prepared by high-energy ball milling and hot isostatic pressing *** effects of composition design,ball milling parameters,and sintering parameters on the microstructure of W-Cr-Y alloys were studied.A feasible technology for controlling the synthesis of high-density nanocrystalline W-based alloys has been *** microstructure analysis of nanocrystalline W-10Cr-5Y alloy shows that there are two types of doping in the second phase:intergranular doping and intragranular *** "uniform distribution YOx-rich particles" effectively suppresses the grain growth of W and leads to the formation of nanocrystalline W-10Cr-5Y alloy.W-10Cr-5Y has an ultra-high hardness,with a Vickers hardness of 1312±12 kgf·***-temperature annealing treatment shows that W-10Cr-5Y has good thermal stability at 1000 and1100℃,as demonstrated by the comparison of Vickers hardness and grain size between annealed and unannealed alloys.

关键词： Hot isostatic pressing Microstructure Nanocrystalline tungsten Thermal stability Vickers hardness