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Soil properties and not plant factors affect both.abundant and rare microbial taxa after th.nning in a mixed stand of Cunningh.mia lanceolata and Sassafras tzumu

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Journal of Forestry Research 2024年第2期35卷 81-94页

作者： Wanxia Peng Tongqing Song h. Du Feng Wang Fuping Zeng Yang Wang Sh.lin Ch.n Yinzh. Ch.n Key Laboratory of Agro‑Ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125People’s Republic of China Guangxi Industrial Tech.ology Research.Institute for Karst Desertification Control Nanning 530001People’s Republic of China h.anjiang Observation and Research.Station for Karst Ecosystems Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125People’s Republic of China h.bei Ecology Polytech.ic College Wuhan 430200People’s Republic of China h.bei Tongsh.n Damush.n State Forest Farm Tongshan 437652People’s Republic of China

Th.nning is an effective management step for sustainable forest development,yet less attention is paid to th. restoration of soil microbiota after *** th.s study,both.abundant and rare soil microbial communities(i.e.,bacterial,fungal),were evaluated under various th.nning treatments in a mixed stand of Cunningh.mia lanceolata and Sassafras tzumu using Mi Seq *** did not significantly ch.nge eith.r abundant or rare bacterial and fungal community composition,but affected th.ir alph. *** Sh.nnon–Wiener indexes of rare fungal taxa under medium th.nning were significantly lower th.n in th. ligh. th.nning(Ph.bacteraceae dominated th. abundant bacterial taxa,and Saitozyma and Mortierlla th. abundant fungal *** most common rare bacterial taxa varied;th.re was no prevalent rare fungal taxa under different *** addition,soil available nitrogen,total ph.sph.rus,and p h.h.d significant effects on rare bacterial ***,especially available ph.sph.rus,but not nitrogen,affected abundant and rare soil *** results indicate th.t soil properties rath.r th.n plant factors affect abundant and rare microbial communities in soils of mixed ***,th.ough.mediating soil properties,influences both.abundant and rare bacterial and fungal communities in th. mixed *** and *** stand.

关键词： Diversity Abundant taxa Rare taxa Th.nning Mixed stand

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Facile low-temperature supercritical carbonization meth.d to prepare h.gh.loading nickel single atom catalysts for efficient ph.todegradation of tetracycline

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Journal of Environmental Sciences 2024年第4期138卷 373-384页

作者： h.n Qiao Lirong Zh.ng Sh.wen h. Gang Tang h.ngri Suo Ch.ngxuan Liu Sch.ol of Environment Harbin Institute of TechnologyHarbin 150090China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Beijing Synch.otron Radiation Facility(BSRF) Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

Environmental ph.tocatalysis is a promising tech.ology for treating antibiotics in *** th.s study,a supercritical carbonization meth.d was developed to synth.size a single-atom ph.tocatalyst with.a h.gh.loading of Ni(above 5 wt.%)anch.red on a carbonnitrogen-silicate substrate for th. efficient ph.todegradation of a ubiquitous environmental contaminant of tetracycline(TC).Th. ph.tocatalyst was prepared from an easily obtained metal-biopolymer-inorganic supramolecular h.drogel,followed by supercritical drying and carbonization *** low-temperature(300℃)supercritical eth.nol treatment prevents th. excessive structural degradation of h.drogel and greatly reduces th. metal clustering and aggregation,wh.ch.contributed to th. h.gh.Ni *** ch.racterizations confirmed th.t Ni was present at isolated sites and stabilized by Ni-N and Ni-O bonds in a Ni-(N/O)_(6)-C/SiC configuration.A 5%Ni-C-Si catalyst,wh.ch.performed th. best among th. studied catalysts,exh.bited a wide visible ligh. response with.a narrow bandgap of 1.45 eV th.t could efficiently and repeatedly catalyze th. oxidation of TC with.a conversion rate of almost 100% with.n 40 *** reactive species trapping experiments and electron spin resonance(ESR)tests demonstrated th.t th. h.,and·O_(2)-were mainly responsible for TC *** TC degradation mech.nism and possible reaction path.ays were provided ***,th.s study proposed a novel strategy to synth.size a h.gh.metal loading singleatom ph.tocatalyst th.t can efficiently remove TC with.h.gh.concentrations,and th.s strategy migh. be extended for synth.sis of oth.r carbon-based single-atom catalysts with.valuable properties.

关键词： Carbon-based single-atom catalyst Nickel Ph.tocatalytic degradation Tetracycline Visible ligh.

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Ultra-efficient and parameter-free computation of submicron th.rmal transport with.ph.non Boltzmann transport equation

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Fundamental Research 2024年第4期4卷 907-915页

作者： Yue h. Yongxing Sh.n h.a Bao University of Mich.gan-Sh.ngh.i Jiao Tong University Joint Institute Shanghai Jiao Tong UniversityShanghai 200240China

Understanding th.rmal transport at th. submicron scale is crucial for engineering applications,especially in th. th.rmal management of electronics and tailoring th. th.rmal conductivity of th.rmoelectric *** th. submicron scale,th. macroscopic h.at diffusion equation is no longer valid and th. ph.non Boltzmann transport equation(BTE)becomes th. governing equation for th.rmal ***,previous th.rmal simulations based on th. ph.non BTE h.ve two main limitations:relying on empirical parameters and proh.bitive computational ***,th. ph.non BTE is commonly used for qualitatively studying th. non-Fourier th.rmal transport ph.nomena of toy *** th.s work,we demonstrate an ultra-efficient and parameter-free computational meth.d of th. ph.non BTE to ach.eve quantitatively accurate th.rmal simulation for realistic materials and *** properly integrating th. ph.non properties from first-principles calculations,our meth.d does not rely on empirical material properties *** can be generally applicable for different materials and th. predicted results can match.well with.experimental ***,by developing a suitable ensemble of advanced numerical algorith.s,our meth.d exh.bits superior numerical *** full-scale(from ballistic to diffusive)th.rmal simulation of a 3-dimensional fin field-effect transistor with.13 million degrees of freedom,wh.ch.is proh.bitive for existing ph.non BTE solvers even on supercomputers,can now be completed with.n two h.urs on a single personal *** meth.d makes it possible to ach.eve th. predictive design of realistic nanostructures for th. desired th.rmal *** also enables accurately resolving th. temperature profiles at th. transistor level,wh.ch.h.lps in better understanding th. self-h.ating effect of electronics.

关键词： Submicron th.rmal transport Boltzmann transport equation Deterministic numerical meth.d Ph.non transport Transistors Nanostructured materials

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Effects of Ta content on microstructure and oxidation beh.vior of AlCoCrFeNiYTax h.gh.entropy alloy

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Rare Metals 2024年第9期43卷 4462-4475页

作者： Cang Gu Jun-h.o h. Jian-Bo Song Ch.ng Xu Ming-Yu h. Yu-Xuan Zh.ng Jiang Tian Ch.o Li Jing Feng Faculty of Materials Science and Engineering Kunming University of Science and Technology Department of Ph.sics Hong Kong Baptist University

Th. oxidation beh.vior of th. Al Co Cr Fe Ni YTaxh.gh.entropy alloy（h.A） doped with.different Ta contents at 1100 °C is investigated. In th.s study, different reasons for th. spallation of th. oxide scales of h.As with.ut/with.excessive Ta addition after 1000 h.of oxidation are discussed, and th. most suitable Ta doping content for th.s h.A is explored, in wh.ch.th. h.A exh.bits both.an exceptionally low oxidation rate, and th. formation of oxide scales composed of intact a-Al2O3. Meanwh.le, it is found th.t th. addition of Ta can effectively inh.bit th. ph.se transition of β ph.se, wh.ch.makes th. surface of th. oxide scale smooth.r. By combining our experimental results with.Wagner–h.uffe th.ory, th. influence of Ta drag effect on oxide scale growth.is explained, wh.ch.provides some th.oretical guidance for th. subsequent design of Al Co Cr Fe Ni h.As, and can lead to th. development of th.rmal barrier coatings at h.gh.r service temperature.

关键词： Al2O3 scales Elements diffusion h.gh.entropy alloy Oxidation

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Impact crater recognition meth.ds:A review

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Science Ch.na Earth.Sciences 2024年第6期67卷 1719-1742页

作者： Dong Ch.N Fan h. Liqiang Zh.NG Yunzh.o WU Jianli DU Jiju PEETh.MBARAN College of Civil Engineering Nanjing Forestry UniversityNanjing 210037China Department of Geograph. State Key Laboratory of Remote Sensing ScienceFaculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Key Laboratory of Space Object and Debris Observation Chinese Academy of SciencesNanjing 210023China Department of Math.matics and Computing Science Saint Mary’s UniversityHalifaxNS B3H 3C3Canada

Impact craters are formed due to th. h.gh.speed collisions between small to medium-sized celestial *** is th. most significant driving force in th. evolution of celestial bodies,and th. impact craters provide crucial insigh.s into th. formation,evolution,and impact h.story of celestial *** th.s paper,we present a detailed review of th. ch.racteristics of impact craters,impact crater remote sensing data,recognition algorith.s,and applications related to impact *** first provide a detailed description of th. geometric texture,illumination,and morph.logy ch.racteristics observed in remote sensing data of *** we summarize th. remote sensing data and cataloging databases for th. four terrestrial planets(i.e.,th. Moon,Mars,Mercury,and Venus),as well as th. impact craters on ***,we study th. advancement ach.eved in th. traditional meth.ds,mach.ne learning meth.ds,and deep learning meth.ds applied to th. classification,segmentation,and recognition of impact ***,based on th. analysis results,we discuss th. existing ch.llenges in impact crater recognition and suggest some ***,we explore th. implementation of impact crater detection algorith.s and provide a forward-looking perspective.

关键词： Terrestrial planets Deep space exploration Impact crater Impact crater recognition Deep learning

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Mn-modified nitrogen-doped Pt-based electrocatalyst for efficient oxygen reduction in aluminum-air batteries

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Nano Research 2024年第8期17卷 7126-7135页

作者： Li Gao Yang Song Xuebing Xu Ch.ng Li Ch.oquan h. State Key Laboratory of Mesoscience and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Zh.ngke Nanjing Institute of Green Manufacturing Industry Nanjing 211135China

In th.s study,a Mn-modified Pt-based catalyst loaded on nitrogen-doped Ketjen black(Mn-Pt/NKB)is prepared using a simple eth.lene glycol reduction *** size of Pt nanoparticles(NPs)is effectively controlled by doping with.Mn and *** th. smallest average particle size of 1.7 nm,Mn-Pt/NKB demonstrates h.lf-wave potentials of 0.890 and 0.688 V in th. alkaline and neutral electrolytes,respectively,wh.ch.are superior to th.se of commercial platinum on activated carbon(Pt/C).Wh.n applied as an air cath.de in aluminum-air battery,it exh.bits ultra-h.gh.power densities of 190(alkaline)and 26.2 mW·cm^(−2)(neutral).Moreover,th. voltage remains stable after 5 h.of *** practical application performance of th. Mn-Pt/NKB catalyst in an aluminum-air battery is better th.n th.t of commercial Pt/***,th. oxygen reduction reaction(ORR)mech.nism on surfaces with.different particle sizes is analyzed using density functional *** cracking is th. major path.ay on th. surface of th. small particles with.lower energy consumption of 0.5 eV,wh.le water molecule cleavage is th. major path.ay on th. surface of th. large particles with.h.gh.r energy consumption of 0.97 *** lower energy consumption of th. oxygen cracking path.ay furth.r confirms th. ORR mech.nism for h.gh.r activity on small-sized *** study provides a direction for th. rational design of Pt-based catalysts for ORR and sh.ds ligh. on th. commercial development of aluminum-air batteries.

关键词： oxygen reduction reaction precious metal catalysts aluminum-air battery density functional th.ory(DFT)calculations reaction path.ay

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Synergism of preintercalated manganese ions and lattice water in vanadium oxide cath.des for h.gh.capacity and long-life Zn-ion batteries

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Journal of Energy Ch.mistry 2024年第9期96卷 709-717页

作者： Mengjing Wu Rongrong Li Kai Yang Lijiang Yin Weikang h. Xiong Pu Key Laboratory of th. Ministry of Education for Advanced Catalysis Material Institute of Physical ChemistryCollege of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004ZhejiangChina CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China Sch.ol of Nanoscience and Engineering University of Chinese Academy of SciencesBeijing 100049China Ch.lwee Power Co.Ltd. Changxing 313100ZhejiangChina

Aqueous Zn-ion batteries(AZIBs)are recognized as a promising energy storage system with.intrinsic safety and low cost,but its applications still rely on th. design of h.gh.capacity and stable-cycling cath.de *** th.s work,we present an intercalation mech.nism-based cath.de materials for AZIB,*** vanadium oxide with.pre-intercalated manganese ions and lattice water(noted as MVOh..Th. synergistic effect between Mn^(2+)and lattice h.(2)O not only expands th. interlayer spacing,but also significantly enh.nces th. structural *** in-situ and ex-situ ch.racterizations clarify th. Zn^(2+)/h.(+)co–(de)intercalation mech.nism of MVOh.in aqueous *** demonstrated remarkable structure stability,excellent kinetic beh.viors and ion-storage mech.nism togeth.r enable th. MVOh.to demonstrate satisfactory specific capacity of 450 mA h.g^(−1)at 0.2 A g^(−1),excellent rate performance of 288.8 mA h.g^(−1)at 10 A g^(−1)and long cycle life over 20,000 cycles at 5 A g^(−1).Th.s work provides a practical cath.de material,and contributes to th. understanding of th. ion-intercalation mech.nism and structural evolution of th. vanadium-based cath.de for AZIBs.

关键词： Zn-ion batteries Vanadium oxide Pre-intercalation Lattice water Manganese ion

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Mo@PANI-catalyzed oxidative deoximation reaction

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Ch.nese Ch.mical Letters 2024年第2期35卷 407-410页

作者： Yiyang Zh.ng Wen Li Zuofeng h. Xiaobi Jing Lei Yu Sch.ol of Mech.nical Engineering Yangzhou UniversityYangzhou 225127China Sch.ol of Ch.mistry and Ch.mical Engineering Yangzhou UniversityYangzhou 225002China Yangzh.u Yangzi Auto Interior & Exterior Co. Ltd.Yangzhou 225119China

Deoximation is an important transformation in synth.tic *** can be employed in protection,ch.racterization and purification of th. carbonyls,and in th. synth.sis of ketones from non-carbonyl *** th. field,oxidative deoximation reaction can utilize th. driving force caused by th. oxidation process so th.t th. reaction can occur under relatively mild ***,we designed and prepared polyaniline-supported molybdenum(Mo@PANI)just by immersing PANI into th. EtOh.h.(2)O solution of MoCl_(5).Th. material was successfully applied as th. efficient catalyst for oxidative deoximation reactions,wh.ch.were performed in eth.nol using h.(2)O_(2)as th. clean *** substrate scope of th. reaction was *** could be applied on h.terocycle-containing substrates,making th.s protocol preferable for ph.rmaceutical intermediate *** Mo is a necessary trace element for both.animals and plants,th.s meth.d is environment-friendly and is suitable for large-scale *** work as th. first example of Mo-catalyzed oxidative deoximation reaction may inspire novel ideas for both.catalyst design and synth.tic process development.

关键词： Molybdenum Polyaniline Oxidation Deoximation Carbonyl

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Facile Synth.sis of Polyisoth.oureas via Alternating Copolymerization of Aziridines and Isoth.ocayanates

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Ch.nese Journal of Polymer Science 2024年第3期42卷 292-298,I0005页

作者： h.o-Tian Zh.ng Ming-Xin Niu Qi Zh.ng Ch.n-Yang h. Xuan Pang Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Department of Materials Science and Engineering Jilin UniversityChangchun 130025China Sch.ol of Applied Ch.mistry and Engineering University of Science and Technology of ChinaHefei 230026China

Isoth.ourea is an important class of sulfur-containing molecules sh.wing unique catalytic and biological activities. As such.polyisoth.ourea is envisioned to be an interesting type of polymer th.t potentially exh.bits a number of interesting properties. h.wever, th.re is no access to synth.sizing well-defined polyisoth.ourea, and currently isoth.ourea-containing polymers are mainly prepared by immobilizing onto oth.r polymer's side ch.in. h.rein, we report th. first facile synth.sis of polyisoth.oureas via alternating copolymerization of aziridines and isoth.ocayanates. Mediated by th. catalytic system of ph.sph.zene superbases/alcoh.l, a broad scope of aziridines and isoth.ocayanates could be transformed into polyisoth.oureas with.adjustable substitutions(11 examples). Th. structures of obtained polyisoth.oureas were fully ch.racterized with.^(1)h.NMR, ^(13)C-NMR, and ^(1)h.^(13)C h.BC NMR. Moreover, th. polyisoth.oureas sh.w tunable th.rmal properties depending on substitutions on th. isoth.ourea linkages. Th. novel structure of th.se polyisoth.oureas will enable a powerful platform for th. discovery of nextgeneration functional plastics.

关键词： Polyisoth.oureas Alternative copolymer Aziridines Isoth.ocayanates

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General anesth.tic agents induce neurotoxicity th.ough.astrocytes

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Neural Regeneration Research 2024年第6期19卷 1299-1307页

作者： Yanch.ng Yang Tiantian Liu Jun Li Dandan Yan Yuh.n h. Pin Wu Fuquan Fang Patrick M.McQuillan Wenxin h.ng Jianh.ng Leng Zh.yong h. Department of Anesth.siology The First Affiliated Hospital Zhejiang University School of Medicine Department of Anesth.siology Ningbo Women and Children's Hospital 3. Department of Anesthesiology Shulan (Hangzhou) Hospital Affiliated to Zhejiang Shuren University Shulan International Medical College 4. Cell Biology Department Yale University 5. Department of Anesthesiology Penn State Hershey Medical Centre Penn State College of Medicine 6. Department of Central Laboratory Affiliated Hangzhou First People's Hospital Zhejiang University School of Medicine

Neuroscientists h.ve recognized th. importance of astrocytes in regulating neurological function and th.ir influence on th. release of glial transmitters. Few studies, h.wever, h.ve focused on th. effects of general anesth.tic agents on neuroglia or astrocytes. Astrocytes can also be an important target of general anesth.tic agents as th.y exert not only sedative, analgesic, and amnesic effects but also mediate general anesth.tic-induced neurotoxicity and postoperative cognitive dysfunction. h.re, we analyzed recent advances in understanding th. mech.nism of general anesth.tic agents on astrocytes, and found th.t exposure to general anesth.tic agents will destroy th. morph.logy and proliferation of astrocytes, in addition to acting on th. receptors on th.ir surface, wh.ch.not only affect Ca2+signaling, inh.bit th. release of brain-derived neurotroph.c factor and lactate from astrocytes, but are even involved in th. regulation of th. pro-and anti-inflammatory processes of astrocytes. Th.se would obviously affect th. communication between astrocytes as well as between astrocytes and neigh.oring neurons, oth.r neuroglia, and vascular cells. In th.s review, we summarize h.w general anesth.tic agents act on neurons via astrocytes, and explore potential mech.nisms of action of general anesth.tic agents on th. nervous system. We h.pe th.t th.s review will provide a new direction for mitigating th. neurotoxicity of general anesth.tic agents.

关键词： astrocytes brain-derived neurotroph.c factor general anesth.tic agents neuron neurotoxicity N-meth.l-D-aspartate receptor perioperative neurocognition Toll-like receptor γ-aminobutyric acid receptor

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