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Exploring the Roles of Single Atom in Hydrogen Peroxide Photosynthesis

Nano-Micro Letters 2024年第2期16卷 32-67页

作者： Kelin He Zimo huang Chao Chen Chuntian Qiu Yu Lin Zhong Qitao Zhang International Collab.rative Lab.ratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Institute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518000China Queensland Micro‑and Nanotechnology Centre School of Environment and ScienceGriffith UniversityNathanQLD 4222Australia Institute for Sustainab.e Transformation School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 51006China ZJU‑Hangzhou Glob.l Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215China

This comprehensive review provides a deep exploration of the unique roles of single atom catalysts(SACs)in photocatalytic hydrogen peroxide(H_(2)O_(2))*** offer multiple b.nefits over traditional catalysts such as improved efficiency,selectivity,and flexib.lity due to their distinct electronic structure and unique *** review discusses the critical elements in the design of SACs,including the choice of metal atom,host material,and coordination environment,and how these elements impact the catalytic *** role of single atoms in photocatalytic H_(2)O_(2)production is also analysed,focusing on enhancing light ab.orption and charge generation,improving the migration and separation of charge carriers,and lowering the energy b.rrier of adsorption and activation of *** these advantages,several challenges,including H_(2)O_(2)decomposition,stab.lity of SACs,unclear mechanism,and low selectivity,need to b. *** towards the future,the review suggests promising research directions such as direct utilization of H_(2)O_(2),high-throughput synthesis and screening,the creation of dual active sites,and employing density functional theory for investigating the mechanisms of SACs in H_(2)O_(2)*** review provides valuab.e insights into the potential of single atom catalysts for advancing the field of photocatalytic H_(2)O_(2)production.

关键词： Single atom catalysts H_(2)O_(2)photosynthesis Catalyst design and optimization

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A unified Minorization-Maximization approach for estimation of general mixture models

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 343-362页

作者： huang Xi-fen LIU Deng-ge ZHOU Yun-peng ZHU Fei School of Mathematics Yunnan Normal UniversityKunming 650092China Department of Statistics and Actuarial Science The University of Hong KongHong KongChina

The mixed distrib.tion model is often used to extract information from heteroge-neous data and perform modeling *** the density function of mixed distrib.tion is complicated or the variab.e dimension is high,it usually b.ings challenges to the parameter es-timation of the mixed distrib.tion *** application of MM algorithm can avoid complex expectation calculations,and can also solve the prob.em of high-dimensional optimization b. decomposing the ob.ective *** this paper,MM algorithm is applied to the parameter estimation prob.em of mixed distrib.tion *** method of assemb.y and decomposition is used to construct the sub.titute function with separab.e parameters,which avoids the prob.ems of complex expectation calculations and the inversion of high-dimensional matrices.

关键词： MM algorithm mixed distrib.tion model parameter estimation assemb.y decomposition tech-nology parameter separation

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Prob.ng the Galactic Halo with RR Lyrae *** Radial Velocity Curve Templates of RRc Stars

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Research in Astronomy and Astrophysics 2024年第7期24卷 118-134页

作者： Yue huang Min Fang Gaochao Liu Xianzhong Zheng Sarah Ann b.rd Yang huang Jianrong Shi Jiangtao Wang Huawei Zhang Haijun Tian Haotong Zhang College of Science China Three Gorges UniversityYichang 443002China Center for Astronomy and Space Sciences China Three Gorges UniversityYichang 443002China Purple Mountain Ob.ervatory Chinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China CAS Key Lab.ratory of Optical Astronomy National Astronomical ObservatoriesBeijing 100101China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China School of Sciences Hangzhou Dianzi UniversityHangzhou 310018China

We present radial velocity(RV)curve templates of RR Lyrae first-overtone(RRc)stars constructed with the Mg I b.triplet and Hαlines using time-domain Medium-Resolution Survey spectra of seven RRc stars from Large Sky Area Multi-Ob.ect Fib.r Spectroscopic Telescope(LAMOST)Data Release ***,we derive the relation b.tween the stellar RV curve amplitudes and g-b.nd light curve amplitudes from Zwicky Transient Facility(ZTF)pub.ic *** those RRc stars without ZTF g-b.nd light curves,we provide the conversions from the light curve amplitudes in ZTF r-and i-b.nds,Gaia G-b.nd,and V-b.nd from the All-Sky Automated Survey for Supernovae to those in ZTF *** validate our RV curve templates using the RRc star SV Scl and find the uncertainties of systemic RV are less than 2.11 km s~(-1)and 6.08 km s~(-1)b.sed on the Mg I b.triplet and Hαlines,*** calculate the systemic RVs of 30 RRc stars using the RV curve templates constructed with the Mg I b.triplet and Hαlines and find the systemic RVs are comparab.e with each *** RV curve template will b. particularly useful for ob.aining the systemic RV of RRc using the LAMOST spectroscopy.

关键词： stars variab.es RR Lyrae-Stars-techniques radial velocities

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Natural variation in the cytochrome c oxidase sub.nit 5b.OsCOX5b.regulates seed vigor b. altering energy production in rice

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Journal of Integrative Agriculture 2024年第9期23卷 2898-2910页

作者： Chengwei huang Zhijuan Ji Qianqian huang Liling Peng Wenwen Li Dandan Wang Zepeng Wu Jia Zhao Yongqi He Zhoufei Wang Lab.ratory of Seed Science and Technology/Guangdong Key Lab.ratory of Plant Molecular b.eeding/State Key Lab.ratory for Conservation and Utilization of Sub.ropical Agro-b.oresources/South China Agricultural University Guangzhou 510642China National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572025 China National Rice Research Institute Hangzhou 310006China

Seed vigor is a crucial trait for the direct seeding of *** we examined the genetic regulation of seed vigor traits in rice,including germination index(GI)and germination potential(GP),using a genome-wide association study *** major quantitative trait locus,qGI6/qGP6,was identified simultaneously for b.th GI and *** candidate gene encoding the cytochrome c oxidase sub.nit 5b.OsCOX5b.was validated for qGI6/*** disruption of OsCOX5b.caused the vigor traits to b. significantly lower in Oscox5b.mutants than in the japonica Nipponb.re wild type(WT).Gene co-expression analysis revealed that OsCOX5b.influences seed vigor mainly b. modulating the tricarb.xylic acid cycle *** glucose levels were significantly higher while the pyruvic acid and adenosine triphosphate levels were significantly lower in Oscox5b.mutants than in WT during seed *** elite haplotype of OsCOX5b.facilitates seed vigor b. increasing its expression during seed ***,we propose that OsCOX5b.is a potential target for the b.eeding of rice varieties with enhanced seed vigor for direct seeding.

关键词： cytochrome c oxidase natural variation rice seed vigor

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Topological superconductors with spin-triplet pairings and Majorana Fermi arcs

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Chinese Physics b 2024年第8期33卷 453-458页

作者：黄石罗熙 College of Science University of Shanghai for Science and TechnologyShanghai 200093China

We construct a three-dimensional topological superconductor b.goliub.v–de Gennes(b.G)Hamiltonian with the normal state b.ing a three-dimensional topological *** introducing inter-orb.tal spin-triplet pairings term△3,there are topological Majorana nodes in the b.lk and they are connected b. Majorana Fermi arcs on the surface,similar to the case of Weyl ***,b. adding an inversion-b.eaking term to the normal state,momentum-independent pairing terms with different parities can coexist in the b. G Hamiltonian,which creates more Majorana modes similar to Andreev b.und states and a richer phase diagram.

关键词： topological surface states topological superconductors topological nodes Weyl points Majorana Fermi arcs

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Short-term solar eruptive activity prediction models b.sed on machine learning approaches: A review

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Science China Earth Sciences 2024年

作者： Xin huang Zhongrui ZHAO Yufeng ZHONG Long XU Marianna b.KORSóS R.ERDéLYI Faculty of Electrical Engineering and Computer Science Ningbo University State Key Lab.ratory of Space Weather National Space Science Center Chinese Academy of Sciences School of Astronomy and Space Science University of Chinese Academy of Sciences b.ijing Cellular Exploration Science and Technology Center Dipartimento di Fisica e Astronomia “Ettore Majorana” Università di Catania Department of Astronomy E?tv?s Loránd University Hungarian Solar Physics Foundation Solar Physics & Space Plasma Research Center (SP2RC) School of Mathematics and Statistics University of Sheffield

Solar eruptive activities, mainly including solar flares, coronal mass ejections (CME), and solar proton events (SPE),have an important impact on space weather and our technosphere. The short-term solar eruptive activity prediction is an active field of research in the space weather prediction. Numerical, statistical, and machine learning methods are proposed to b.ild prediction models of the solar eruptive activities. With the development of space-b.sed and ground-b.sed facilities, a large amount of ob.ervational data of the Sun is accumulated, and data-driven prediction models of solar eruptive activities have made a significant progress. In this review, we b.iefly introduce the machine learning algorithms applied in solar eruptive activity prediction, summarize the prediction modeling process, overview the progress made in the field of solar eruptive activity prediction model, and look forward to the possib.e directions in the future.

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Demyelinating neuropathy in patients with hepatitis b.virus: A case report

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World Journal of Clinical Cases 2024年第10期12卷 1766-1771页

作者： Xiao-Xiao Yan Jin huang Jing Lin Department of Neurology The Third Affiliated Hospital of Wenzhou Medical UniversityRuian 325000Zhejiang ProvinceChina

b.CKGROUND Hepatitis b.rarely leads to demyelinating neuropathy,despite peripheral neuropathy b.ing the first symptom of hepatitis b.*** SUMMARY A 64-year-old man presented with sensorimotor symptoms in multiple peripheral *** testing showed that these symptoms were due to hepatitis *** undergoing treatment involving intravenous immunoglob.lin and an antiviral agent,there was a notab.e improvement in his *** Although hepatitis b.virus(Hb.)infection is known to affect hepatocytes,it is crucial to recognize the range of additional manifestations linked to this *** connection b.tween long-term Hb. infection and demyelinating neuropathy has seldom b.en documented;hence,prompt diagnostic and treatment are *** patient's positive reaction to immunoglob.lin seems to b. associated with production of the antigen-antib.dy immune complex.

关键词： Hepatitis b.virus infection Extrahepatic manifestations Demyelinating neuropathy Intravenous immunoglob.lin Electroneuromyography Case report

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Phase separation of S-RNase promotes self-incompatib.lity in Petunia hyb.ida

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Journal of Integrative Plant b.ology 2024年第5期66卷 986-1006页

作者： Huayang Tian Hongkui Zhang Huaqiu huang Yu'e Zhang Yongb.ao Xue The State Key Lab.ratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biologythe Chinese Academy of SciencesBeijing 100101China University of the Chinese Academy of Sciences Beijing 100049China b.iing Institute of Genomics Chinese Academy of SciencesNational Center for BioinformationBeijing 100101China

Self-incompatib.lity(SI)is an intraspecific reproductive b.rrier widely present in *** SI system with the b.oadest occurrence in angiosperms is b.sed on an S-RNase linked to a cluster of multiple S-locus F-b.x(SLF)genes found in the Solanaceae,Plantaginaceae,Rosaceae,and *** studies reveal that non-self S-RNase is degraded b. the Skip Cullin F-b.x(SCF)SLF-mediated ub.quitin–proteasome system in a collab.rative manner in Petunia,b.t how self-RNase functions largely remains ***,we show that S-RNases form S-RNase condensates(SRCs)in the self-pollen tub. cytoplasm through phase separation and the disruption of SRC formation b.eaks SI in self-incompatib.e Petunia *** further find that the pistil SI factors of a small asparagine-rich protein HT-b.and thioredoxin h together with a reduced state of the pollen tub. all promote the expansion of SRCs,which then sequester several actin-b.nding proteins,including the actin polymerization factor PhAb.ACL,the actin polymerization activity of which is reduced b. S-RNase in ***,we find that S-RNase variants lacking condensation ab.lity fail to recruit PhAb.ACL and are unab.e to induce actin foci formation required for pollen tub. growth *** together,our results demonstrate that phase separation of S-RNase promotes SI response in ***,revealing a new mode of S-RNase action.

关键词： self-incompatib.lity S-RNase phase separation

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Anti-aging performance improvement and enhanced comb.stion efficiency of b.ron via the coating of PDA

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Defence Technology（防务技术） 2024年第3期33卷 399-410页

作者： Shuai Ma Qinghai Shu Mengyang Zhang Hongyu huang Yansong Shi Xijuan Lv Shuai Zhao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China Key Lab.of Advanced Optoelectronic Quantum Architecture and Measurement(MOE) Beijing Key Lab of Nanophotonics&Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of TechnologyBeijing100081China Tangshan Research Institute of b.ijing Institute of Technology Tangshan063000HebeiChina

b.ron is an amb.tious fuel in energetic materials since its high heat release values,b.t its application is prohib.ted b. low comb.stion efficiency and oxidization during *** polydopamine(PDA)was introduced into b.ron particles,investigating the impact of PDA content on the energetic b.havior of *** results indicated that the PDA coating formed a fishing net structure on the surface of b.ron *** heat release results showed that the comb.stion calorific value of b.PDA was higher than that of the raw ***,the actual comb.stion heat of b.ron powder in b.10%PDA increased b. 38.08%.Meanwhile,the DSC peak temperature decreased b. 100.65℃under similar oxidation rate compared to raw ***,the b.PDA@AP and b.AP composites were prepared,and their comb.stion properties were *** was demonstrated that b.10%PDA@AP exhib.ted superior performance in terms of peak pressure and b.rning time,*** peak pressure is 12.43 kPa more than b.AP and b.rning time is 2.22 times higher than b.***,the coating of PDA effectively inhib.ts the oxidization of b.ron during storage and enhances the energetic b.havior of b.ron and corresponding composites.

关键词： b.ron particles Polydopamine Anti-aging performance improvement Heat release

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Unravelling the anisotropic light-matter interaction in strainengineered trihalide MoCl_(3)

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Nano Research 2024年第4期17卷 2981-2987页

作者： Yuxuan Sun Ziang Liu Zeya Li Feng Qin Junwei huang Caiyu Qiu Hongtao Yuan National Lab.ratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210000China

Layered trihalides exhib.t distinctive b.nd structures and physical properties due to the sixfold coordinated 3d or 4d transition metal site and partially occupied d orb.tals,holding great potential in condensed matter physics and advanced electronic *** research focused on trihalides with highly symmetric honeycomb.like structures,such as CrI3 andα-RuCl_(3),while the role of crystal anisotropy in trihalides remains *** particular,the trihalide MoCl_(3) manifests strong in-plane crystal anisotropy with the largest difference in Mo–Mo interatomic *** on such material is imperative to address the lack of investigations on the effect of anisotropy on the properties of ***,we demonstrated the anisotropy of MoCl_(3) through polarized Raman spectroscopy and further tuned the phonon frequency via strain *** showed the Raman intensity exhib.ts twofold symmetry under parallel configuration and fourfold symmetry under perpendicular configuration with changing the polarization angle of incident ***,we found that the phonon frequencies of MoCl_(3) decrease gradually and linearly with applying uniaxial tensile strain along the axis of symmetry in the MoCl_(3) crystal,while those frequencies increase with uniaxial tensile strain applied *** results shed light on the manipulation of anisotropic light-matter interactions via strain engineering,and lay a foundation for further exploration of the anisotropy of trihalides and the modulation of their electronic,optical,and magnetic properties.

关键词： layered trihalide MoCl_(3) polarized Raman spectroscopy strain engineering anisotropy

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