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Bipolar Thermoelectrical Transport of SnSe Nanoplate in Low Temperature

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Chinese Physics Letters 2020年第1期37卷 69-73页

作者： Li-Yan Zhou Qi Zheng Li-Hong Bao wen-jie liang Beijing National Center for Condensed Matter Physics Beijing Key Laboratory for Nanomaterials and NanodevicesInstitute of PhysicsChinese Academy of SciencesBeijing 100190 CAS Center of Excellence in Topological Quantum Computation and School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190 Songshan Lake Materials Laboratory Dongguan 523808

Bulk SnSe is an excellent thermoelectrical material with the highest figure-of-merit value of ZT=2.&making it promising in ***-dependent electrical and thermoelectrical properties of SnSe nanoplates are studied at low *** drops and rises again as temperature is *** Seebeck coefficient is positive at room temperature and becomes negative at low *** change of the sign of the Seebeck coefficient indicates influence of bipolar transport of the semiconductive SnSe *** bipolar transport is caused by the Fermi energy changing with temperature due to different contributions from donors and acceptors at different temperatures.

关键词： plate highest Thermoelectric

Clinical characteristics and risk factors of Talaromyces marneffei infection in human immunodeficiency virus-negative patients: A retrospective observational study

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World Journal of Emergency Medicine 2021年第4期12卷 281-286页

作者： Hong-yan Wei wen-jie liang Bin Li Ling-yu Wei An-qi Jiang Wei-dong Chen Peng-hao Guo Jia Xu Department of Emergency Medicine the First Affi liated Hospital of Sun Yat-sen UniversityGuangzhou 510080China Department of Pulmonary and Critical Care Medicine the First Affi liated Hospital of Sun Yat-sen UniversityGuangzhou 510080China Clinical Trial Unit the First Affi liated Hospital of Sun Yat-sen UniversityGuangzhou 510080China Department of Laboratory Medicine the First Affi liated Hospital of Sun Yat-sen UniversityGuangzhou 510080China

BACKGROUND: To investigate the clinical characteristics and risk factors of human immunodeficiency virus(HIV)-negative patients with Talaromyces marneffei(T. marneffei) ***: We retrospectively collected the clinical information of HIV-negative patients with T. marneffei infection from January 1, 2010 to June 30, 2019, and analyzed the related risk factors of poor ***: Twenty-five cases aging 22 to 79 years were included. Manifestations of T. marneffei infection included fever, cough, dyspnea, chest pain or distress, lymphadenopathy, ear, nose, and throat(ENT) and/or skin lesions, bone or joint pain, edema and pain in the lower extremities, digestive symptoms, icterus, malaise, and hoarseness. Two cases had no comorbidity, while 23 cases suff ered from autoimmune disease, pulmonary disease, cancer, and other chronic diseases. Sixteen cases had a medication history of glucocorticoids, chemotherapy or immunosuppressors. Pulmonary lesions included interstitial infiltration, nodules, atelectasis, cavitary lesions, pleural effusion or hydropneumothorax, bronchiectasis, pulmonary fibrosis, pulmonary edema, and consolidation. The incidence of osteolytic lesions was 20%. Eight patients received antifungal monotherapy, and 11 patients received combined antifungal agents. Fifteen patients survived and ten patients were dead. The Cox regression analysis showed that reduced eosinophil counts, higher levels of blood urea nitrogen(BUN), alanine aminotransferase(ALT), aspartate aminotransferase(AST), lactic dehydrogenase(LDH), myoglobin(Mb), procalcitonin(PCT), and galactomannan were related to poor prognosis(hazard ratio [HR]>1, P<0.05).CONCLUSIONS: Bone destruction is common in HIV-negative patients with T. marneffei infection. Defective cell-mediated immunity, active infection, multiple system, and organ damage can be the risk factors of poor prognosis.

关键词： Talaromyces marneffei Human immunodeficiency virus Bone destruction Risk factors

Accurate determination of anisotropic thermal conductivity for ultrathin composite film

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Chinese Physics B 2022年第10期31卷 572-577页

作者： Qiu-Hao Zhu Jing-Song Peng Xiao Guo Ru-Xuan Zhang Lei Jiang Qun-Feng Cheng wen-jie liang Beijing National Center for Condensed Matter Physics Beijing Key Laboratory for Nanomaterials and NanodevicesInstitute of PhysicsChinese Academy of Sciences(CAS)Beijing 100190China CAS Center of Excellence in Topological Quantum Computation and School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190China School of Chemistry Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of EducationBeijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing 100191China Songshan Lake Materials Laboratory Dongguan 523808China

Highly anisotropic thermal conductive materials are of significance in thermal management applications. However,accurate determination of ultrathin composite thermal properties is a daunting task due to the tiny thermal conductance,severely hindering the further exploration of novel efficient thermal management materials, especially for size-confined environments. In this work, by utilizing a hybrid measuring method, we demonstrate an accurate determination of thermal properties for montmorillonite/reduced graphene oxide(MMT/r GO) composite film with a thickness range from 0.2 μm to2 μm. The in-plane thermal conductivity measurement is realized by one-dimensional(1D) steady-state heat conduction approach while the cross-plane one is achieved via a modified 3ω method. As-measured thermal conductivity results are cross-checked with different methods and known materials, revealing the high measurement accuracy. A high anisotropic ratio of 60.5, independent of composite thickness, is observed in our measurements, further ensuring the negligible measurement error. Notably, our work develops an effective approach to the determination of ultrathin composite thermal conductivity, which may promote the development of ultrathin composites for potential thermal-related applications.

关键词： ultrathin composite film thermal conductivity anisotropic ratio

Structurally Divergent Synthesis of Azetidines,5,6-Dihydro-1,3-oxazines and 2,3-Dihydro-1,4-oxazines through Palladium-Catalyzed Tandem Allylic Substitution Reaction

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Chinese Journal of Chemistry 2024年第22期42卷 2773-2778页

作者： Ru-Fang Meng Yu-Juan Kong Xiao-Yan Wu Huan Zhang Wei Wang wen-jie liang Lan Zheng Chenxiang Lin Wei Su Jun-An Xiao Guangxi Key Laboratory of Natural Polymer Chemistryand Physics Nanning Normal UniversityNanningGuangxi 530001China

Comprehensive Summary A regiodivergent synthesis of azetidines,5,6-dihydro-1,3-oxazines and 2,3-dihydro-1,4-oxazines has been achieved through palladium-catalyzed tandem allylic substitution *** protocol provides a variety of heterocycles in satisfactory yields with good to excellent regioselectivities under mild reaction conditions.

关键词： Palladium catalysis Annulation Azetidine Domino reactions Regioselectivity Allylic dicarbonate Allylic substitution

Human auditory cortex electrophysiological correlates to interaural correlation of broadband noise

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Human auditory cortex electrophysiological correlates to int...

Mesospheric tide comparisons at low latitudes observed by two collocated meteor radars

中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： wen-jie WANG,liang LI Department of Psychology,Peking University,Beijing 100871

＜正＞The interaural correlation（IAC） is a measure of the similarity of the acoustic waveforms presented to left and right *** the two waveforms are correlated,the value of IAC is 1;the 0 IAC means the two waveforms are uncorrelated. Perceptually,decreasing levels of IAC results in an increased spatial width of a sound image that may underlie the difficulty in precisely localizing the sound *** investigation of the neural mechanisms that are sensitive to the IAC is informative in the study of auditory scene analysis and extraction of objects from *** it is unclear which stages of the auditory pathway involving the IAC *** present study recorded both psychoacoustical and cortical auditory evoked potential（CAEP） response to investigate whether there are cortical different responses to IAC of broadband noises and the correlation between the behavioral and cortical *** onset of a brief probe gap presented in the middle of the long duration correlated noises was found to elicit significantly decreased N1 peak amplitude compared with the Nl response to gap in the uncorrelated *** the right-side noise led or lagged behind the left-side correlated noise sound 2 ms,the N1 amplitudes of the gap are larger at right *** gap-localization tasks reflects the dominance of directional information of the leading sound only when the noises are *** Nl peak amplitude to the sound onset was not affected by the correlation of the long duration *** suggest the primary auditory cortical involvement in the IAC perception.

关键词： auditory evoked potentials N1 interaural correlation

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Earth and Planetary Physics 2025年第1期9卷 54-68页

作者： Jian Li wen Yi XiangHui Xue jie Zeng HaiLun Ye JianYuan Wang JinSong Chen Na Li TingDi Chen Chinese Academy of Sciences(CAS)Key Laboratory of Geospace Environment Department of Geophysics and Planetary SciencesUniversity of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Comparative Planetology Anhui Mengcheng Geophysics National Observation and Research StationUniversity of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center of Astronautical Science and Technology Harbin 150001China National Key Laboratory of Electromagnetic Environment China Research Institute of Radiowave PropagationQingdao 266107China Yunnan Kunming Electromagnetic Environment National Observation and Research Station Qujing Kunming 655000China

Accurate knowledge of mesospheric winds and waves is essential for studying the dynamics and climate in the mesosphere and lower thermosphere(MLT)*** this study,we conduct a comparative analysis of the mesosphere tidal results obtained from two adjacent meteor radars at low latitudes in Kunming,China,from November 2013 to December *** two radars operate at different frequencies of 37.5 MHz and 53.1 MHz,***,overall good agreement is observed between the two radars in terms of horizontal winds and tide *** results show that the dominant tidal waves of the zonal and meridional winds are diurnal and semidiurnal ***,we conduct an exhaustive statistical analysis to compare the tidal amplitudes and vertical wavelengths recorded by the dual radar systems,which reveals a high degree of alignment in tidal *** investigation includes variances and covariances of tidal amplitudes,which demonstrate remarkable consistency across measurements from both *** finding highlights clear uniformity in the mesospheric tidal patterns observed at low latitudes by the two neighboring meteor *** of the comparative analysis specifically underscore the significant correlation in vertical wavelength measurements,validating the robustness of radar observations for tidal research.

关键词： mesosphere and lower thermosphere region meteor radar mesospheric winds tides

Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

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Science China Chemistry 2025年第01期 201-208页

作者： Hui-Feng Wang wen-jie Shi Yu-Xin Yang Bao-Xia Dong Tong-Bu Lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

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Trinuclear gold-catalyzed site-selective alkylation of peptides

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Science China Chemistry 2025年第1期 249-256页

作者： Qing-Yun Fang Chengyihan Gu Yinghan Chen wencheng Yan Yong liang Weipeng Li Chengjian Zhu jie Han Jin Xie State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (Chem BIC) School of Chemistry and Chemical Engineering Nanjing University Green Catalysis Center College of Chemistry Zhengzhou University State Key Laboratory of Natural Medicines China Pharmaceutical University

Selective modification of peptides has always been a challenging issue. The selective alkylation of peptides can alter the biological activity and physical properties of molecules, and it has gained significant research interest. We herein disclose an intriguing gold-catalyzed alkylation of peptides using bench-stable unactivated alkyl bromides under photoredox catalysis. A wide range of structurally diverse primary, secondary and tertiary alkyl bromides serve as effective coupling partners to precisely connect with the α-C(sp3)–H in glycine residue of peptides. This protocol demonstrates an exceptionally broad scope for alkyl halides and excellent tolerance for a wide range of useful functional groups. A series of relay transformations to construct cyclic peptides, to proceed click reaction and to realize peptide fluorescence labeling further enhance its synthetic practicality. In addition, mechanistic studies and density functional theory(DFT) calculations reveal an inner-sphere and subsequent outersphere single electron transfer(SET) mechanism.

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Catalyst–Support Interaction in Polyaniline‑Supported Ni_(3)Fe Oxide to Boost Oxygen Evolution Activities for Rechargeable Zn‑Air Batteries

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Nano-Micro Letters 2025年第1期17卷 176-190页

作者： Xiaohong Zou Qian Lu Mingcong Tang jie Wu Kouer Zhang wenzhi Li Yunxia Hu Xiaomin Xu Xiao Zhang Zongping Shao liang An Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and TechnologyNanjing University of Information Science and TechnologyNanjing 210044People’s Republic of China Department of Chemistry The Chinese University of Hong KongMa Lin BuildingShatinHong Kong SAR 999077People’s Republic of China WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6102Australia Research Institute for Advanced Manufacturing The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China

Catalyst–support interaction plays a crucial role in improving the catalytic activity of oxygen evolution reaction(OER).Here we modulate the catalyst–support interaction in polyaniline-supported Ni_(3)Fe oxide(Ni_(3)Fe oxide/PANI)with a robust hetero-interface,which significantly improves oxygen evolution activities with an overpotential of 270 mV at 10 mA cm^(-2)and specific activity of 2.08 mA cm_(ECSA)^(-2)at overpotential of 300 mV,3.84-fold that of Ni_(3)Fe *** is revealed that the catalyst–support interaction between Ni_(3)Fe oxide and PANI support enhances the Ni–O covalency via the interfacial Ni–N bond,thus promoting the charge and mass transfer on Ni_(3)Fe *** the excellent activity and stability,rechargeable Zn-air batteries with optimum Ni_(3)Fe oxide/PANI are assembled,delivering a low charge voltage of 1.95 V to cycle for 400 h at 10 mA cm^(-2).The regulation of the effect of catalyst–support interaction on catalytic activity provides new possibilities for the future design of highly efficient OER catalysts.

关键词： Catalyst-support interaction Supported catalysts Heterointerface Oxygen evolution reaction Zn-air batteries