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Chinese Chemical Letters 2025年第1期36卷 597-602页

作者： Xingxing Jiang Yuxin Zhao Yan Kong Jianju Sun Shangzhao Feng Xin Lu qi Hu Hengpan Yang Chuanxin He College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China

Leveraging the interplay between the metal component and the supporting material represents a cornerstone strategy for augmenting electrocatalytic efficiency,e.g.,electrocatalytic CO_(2)reduction reaction(CO_(2)RR).Herein,we employ freestanding porous carbon fibers(PCNF)as an efficacious and stable support for the uniformly distributed SnO_(2)nanoparticles(SnO_(2)PCNF),thereby capitalizing on the synergistic support effect that arises from their strong *** one hand,the interaction between the SnO_(2)nanoparticles and the carbon support optimizes the electronic configuration of the active *** interaction leads to a noteworthy shift of the d-band center toward stronger intermediate adsorption energy,consequently lowering the energy barrier associated with CO_(2)*** a result,the Sn O_(2)PCNF realizes a remarkable CO_(2)RR performance with excellent selectivity towards formate(98.1%).On the other hand,the porous carbon fibers enable the uniform and stable dispersion of SnO_(2)nanoparticles,and this superior porous structure of carbon supports can also facilitate the exposure of the SnO_(2)nanoparticles on the reaction interface to a great ***,adequate contact between active sites,reactants,and electrolytes can significantly increase the metal utilization,eventually bringing forth a remarkable7.09 A/mg mass *** work might provide a useful idea for improving the utilization rate of metals in numerous electrocatalytic reactions.

关键词： CO_(2)electroreduction Support effect Porous carbon fiber Formate Mass activity

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Tandem asymmetric dearomatized functionalization reaction of phenols with Evans-ynamides enabled by divergent electrophiles

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Science China Chemistry 2025年第2期68卷 649-660页

作者： Ying-qi Zhang Gan-Lu qian Yun Liu Jia-Hui Li Xin Hong Zhou Xu bo Zhou Long-Wu Ye State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Provinceand College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Center of Chemistry for Frontier Technologies Department of ChemistryState Key Laboratory of Clean Energy UtilizationZhejiang UniversityHangzhou 310027China Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy School of PharmacyXuzhou Medical UniversityXuzhou 221004China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China State Key Laboratory of Organometallic Chemistry Chinese Academy of SciencesShanghai 200032China

Herein,we disclose a highly regio-/chemoselective tandem asymmetric dearomatized halofunctionalization reaction of phenoltethered ynamides with diverse electrophilic halogenation sources in a catalyst-free manner for the practical and rapid assembly of a series of halogenated spirocyclic ***,the related dearomatized selenation and protonation are also achieved,affording the corresponding selenated and protonated spirocycles in high ***,the enantioselectivities of these products can be perfectly induced by Evans auxiliaries(99%ees).Significantly,this protocol not only represents the first tandem asymmetric halofunctionalization reaction of phenol derivatives,but also constitutes the first asymmetric halogenation/selenation of *** calculations indicate a remote induction model of Evans chiral auxiliary-attached keteniminium.

关键词： alkynes cyclization dearomatization Evans chiral auxiliary spirocycles

bistable switch molecule DPACdCl_(4) showing four physical channels and high phase transition temperature

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Chinese Chemical Letters 2025年第1期36卷 591-596页

作者： Ying-Yu Zhang Jia-qi Luo Yan Han Wan-Ying Zhang Yi Zhang Hai-Feng Lu Da-Wei Fu Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsZhejiang Normal UniversityJinhua 321004China Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and applications of Molecular FerroelectricsSoutheast UniversityNanjing 211189China

Multiple switchable physical channels within one material or device,encompassing optical,electrical,thermal,and mechanical pathways,can enable multifunctionality in mechanical-thermal-opto-electronic *** integrated encryption and enhanced performance in storage and sensing presents a formidable challenge in the synthesis and functionality of new *** an effort to overcome the complexities associated with these multiple physical functions,this study investigates the large-size crystal of DPACdCl_(4)(DPA=diisopropylammonium),revealing significant features in rare multi-channel *** compound demonstrates the ability to switch between"OFF/0"and"ON/1"states in the mechanical-thermal-opto-electronic ***,DPACd Cl_(4)possesses four switchable physical channels,characterized by a higher phase transition temperature of 440.7 K and a competitive piezo-electric coefficient of 46 pC/***,solid-state NMR analysis indicates that thermally activated molecular vibrations significantly contribute to its multifunctional switching capabilities.

关键词： Organic-inorganic hybrid Phase transition Crystal Perovskite Piezoelectricity

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STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.Z.bai Y.bai O.bakina A.barnyakov V.blinov V.bobrovnikov D.bodrov A.bogomyagkov A.bondar I.boyko Z.H.bu F.M.Cai H.Cai J.J.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen J.F.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng J.Cheng S.Cheng T.G.Cheng J.P.Dai L.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.M.Dias D.Z.Ding L.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.J.Du Z.G.Du L.M.Duan D.Epifanov Y.L.Fan S.S.Fang Z.J.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng J.L.Fu J.Gao Y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong b.Gou W.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo Y.P.Guo Z.H.Guo A.Guskov K.L.Han L.Han M.Han X.Q.Hao J.b.He S.Q.He X.G.He Y.L.He Z.b.He Z.X.Heng b.L.Hou T.J.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu Y.C.Hu J.Hua G.S.Huang J.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.J.Huang Y.b.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia S.Jia Z.K.Jia H.b.Jiang J.Jiang S.Z.Jiang J.b.Jiao Z.Jiao H.J.Jing X.L.Kang X.S.Kang b.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev C.H.Li C.Li D.Y.Li F.Li G.Li G.Li H.b.Li H.Li H.N.Li H.J.Li H.L.Li J.M.Li J.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.H.Li S.Li T.Li W.J.Li X.Li X.H.Li X.Q.Li X.H.Li Y.Li Y.Y.Li Z.J.Li H.Liang J.H.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao C.X.Lin D.X.Lin X.S.Lin b.J.Liu C.W.Liu D.Liu F.Liu G.M.Liu H.b.Liu J.Liu J.J.Liu J.b.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu S.b.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu Z.Q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long C.G.Lu J.X.Lu N.Lu Q.F.Lü Y.Lu Y.Lu Z.Lu P.Lukin F.J.Luo T.Luo X.F.Luo Y.H.Luo H.J.Lyu X.R.Lyu J.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng L.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata b.b.qi Y.Q.qi W.b.qian Y.qian C.F.qiao J.J.qin J.J.qin L.Q.qin X.S.qin T.L.qiu J.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China beihang University Beijing 100191China budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the bEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

Smartphone-assisted electrochemiluminescence imaging test strips towards dual-signal visualized and sensitive monitoring of aflatoxin b1 in corn samples

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Chinese Chemical Letters 2025年第1期36卷 464-468页

作者： Miao-Miao Chen Min-Ling Zhang Xiao Song Jun Jiang Xiaoqian Tang qi Zhang Xiuhua Zhang Peiwu Li Key Laboratory of biology and Genetic Improvement of Oil Crops Ministry of Agriculture and Rural AffairsLaboratory of Risk Assessment for Oilseed Products(Wuhan)Quality Inspection and Test Center for Oilseed ProductsOil Crops Research InstituteChinese Academy of Agricultural SciencesWuhan 430062China Food Safety Research Institute Hubei UniversityWuhan 430062China Hubei Hongshan Laboratory Wuhan 430070China Xianghu Laboratory Hangzhou 311231China College of Chemistry and Chemical Engineering Hubei UniversityWuhan 430062China

Aflatoxins b1(AFb1)contamination in agro-food holds great threaten to human and animal *** test strips for rapid AFb1 visualized monitoring remains challenged by improvement of sensitivity and matrix interference *** this case,we developed a portable electrochemiluminescence(ECL)imaging test strip with dual-signal outputs for AFb1 quantification in corn ***@SiO_(2)@Au nanospheres were synthesized for bonding with anti-AFb1 antibody and then colorimetrical signal-reported on test line through the capillary flow at ***,ECL imaging signal of the constructed carbon-ink-based working electrode on polyvinyl chloride substrate of strips was exported under an applied potential of 1.25 *** whole ECL test strips not only endowed convenient colorimetric responses but guaranteed quick-witted ECL image distinguishment even at extremely low AFb1 *** detection limit of this ECL imaging-integrated mode was 10-fold lower than that of only colorimetric ***,satisfactory selectivity,reliability and practicability of the as-proposed ECL test strips were *** work offered a promising platform for on-site,accurate and sensitive detection of pollutants in foods.

关键词： Electrochemiluminescence imaging Test strips Nanomaterials Dual-signal outputs Aflatoxin b1 Food safety

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Recent developments in MQL machining of aeronautical materials:A comparative review

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Chinese Journal of Aeronautics 2025年第1期38卷 43-69页

作者： Syed Hammad ALI Yu YAO bangfu WU biao ZHAO Wenfeng DING Muhammad JAMIL Ahmar KHAN Asra bAIG qi LIU Dongdong XU National Key Laboratory of Science and Technology on Helicopter Transmission Nanjing University of Aeronautics and AstronauticsNanjing 210016China Department of Mechanical Engineering NED University of Engineering and TechnologyKarachi 75270Pakistan Centre for Precision Manufacturing University of StrathclydeGlasgow G11XQUK School of Mechanical Engineering Tongji UniversityShanghai 200092China

Minimum quantity lubrication(MQL),as a new sustainable and eco-friendly alternative cooling/lubrication technology that addresses the limitations of dry and wet machining,utilizes a small amount of lubricant or coolant to reduce friction,tool wear,and heat during cutting *** technique has witnessed significant developments in recent years,such as combining MQL with other sustainable techniques to achieve optimum results,using biodegradable lubricants,and innovations in nozzle designs and delivery *** review presents an in-depth analysis of machining characteristics(e.g.,cutting forces,temperature,tool wear,chip morphology and surface integrity,etc.)and sustainability characteristics(e.g.,energy consumption,carbon emissions,processing time,machining cost,etc.)of conventional MQL and hybrid MQL techniques like cryogenic MQL,Ranque-Hilsch vortex tube MQL,nanofluids MQL,hybrid nanofluid MQL and ultrasonic vibration assisted MQL in machining of aeronautical ***,the latest research and developments are analyzed and summarized in the field of MQL,and provide a detailed comparison between each technique,considering advantages,challenges,and limitations in practical *** addition,this review serves as a valuable source for researchers and engineers to optimize machining processes while minimizing environmental impact and operational ***,the potential future aspects of MQL for research and industrial execution are discussed.

关键词： Aerospace materials Minimum Quantity Lubrication(MQL) Cryogenic Nanofluid Grinding Milling Sustainability

Investigating the p-Ω interactions and correlation functions

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Science China(Physics,Mechanics & Astronomy) 2025年第3期68卷 112-123页

作者： Ye Yan qi Huang Youchang Yang Hongxia Huang Jialun Ping Department of Physics Nanjing Normal UniversityNanjing210023China School of Science Guizhou University of Engineering ScienceBijie551700China

Motivated by experimental measurements,we investigate the p-Ωcorrelation functions and interactions on the basis of a quark *** solving the inverse scattering problem with channel coupling,we renormalize the coupling to other channels into an effective single-channel p-Ω*** effects of Coulomb interaction and spin-averaging are also *** to our results,the depletion of the p-Ωcorrelation functions,which is attributed to the J^(P)=2^(+)bound state not observed in the ALICE Collaboration's measurements(Nature 588,232(2020)),can be explained by the contribution of the attractive J^(P)=1^(+)component in *** far,we have provided a consistent description of the p-Ωsystem from the perspective of the quark model,including the energy spectrum,scattering phase shifts,and correlation *** existence of the p-Ωbound state has been supported by all three ***,a sign of the p-Ωcorrelation function's subtle sub-unity part can be seen in experimental measurements,which warrants more precise verification in the future.

关键词： correlation function p-Ωdibaryon quark delocalization color screening model

Flow and Heat Transfer of Hydrocarbon Fuel in a Channel with Staggered-Side-Gap Micro Ribs

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Journal of Thermal Science 2025年第02期 524-541页

作者： JIANG Yuguang qi Yongjian WANG Leqing LIN Yong FAN Wei School of Power and Energy Northwestern Polytechnical University

SCRamjet is exposed to severe thermal environments during hypersonic flights,which poses a serious challenge to the engine cooling *** cooling with hydrocarbon fuel is considered promising,in which the hydrocarbon fuel flows through micro channels（200 μm-3 mm） to absorb the combustion heat *** strictly limited hydrocarbon fuel onboard,heat transfer deterioration and over-temperature are highly *** this paper,micro ribs with staggered side gaps are introduced and numerically studied to enhance the heat *** with the straight channel and channel with straight micro ribs,the staggered side gaps alleviate the local low velocity zone and intensify the longitudinal and transverse *** heat transfer is obviously *** rib height enhances the heat transfer by stronger side gap effects at the cost of larger pressure *** best overall heat transfer factor η is achieved in the case of hrib/H=0.1,which increases by 204.5% comparing to the straight *** the rib interval is too small or too large,it approaches to the straight *** best overall heat transfer factor η is achieved in the case of L/prib=100,which increases by212.9% comparing to the straight *** is known the improvement in the geometry of the ribs,i.e.,the staggered-side-gap micro ribs,induces extra transverse vortex and improves the heat transfer performance more *** research of this paper provides support for the cooling design of the SCRamjet.

关键词：

Investigating the p-Ω interactions and correlation functions

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Science China(Physics,Mechanics & Astronomy) 2025年

作者： Ye Yan qi Huang Youchang Yang Hongxia Huang Jialun Ping Department of Physics Nanjing Normal University School of Science Guizhou University of Engineering Science

Motivated by experimental measurements, we investigate the p-Ω correlation functions and interactions on the basis of a quark model. by solving the inverse scattering problem with channel coupling, we renormalize the coupling to other channels into an effective single-channel p-Ω potentials. The effects of Coulomb interaction and spin-averaging are also discussed. According to our results, the depletion of the p-Ω correlation functions, which is attributed to the JP= 2+bound state not observed in the ALICE Collaboration's measurements(Nature 588, 232（2020）), can be explained by the contribution of the attractive JP= 1+component in spin-averaging. So far, we have provided a consistent description of the p-Ω system from the perspective of the quark model, including the energy spectrum, scattering phase shifts, and correlation functions. The existence of the p-Ω bound state has been supported by all three aspects. Additionally, a sign of the p-Ω correlation function's subtle sub-unity part can be seen in experimental measurements, which warrants more precise verification in the future.

关键词：

A 3D semantic segmentation network for accurate neuronal soma segmentation

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JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES 2025年第1期18卷 67-83页

作者： Ma, Li Zhong, qi Wang, Yezi Yang, Xiaoquan Du, qian China Univ Geosci Sch Mech Engn & Elect Informat Wuhan 430074 Peoples R China Huazhong Univ Sci & Technol Britton Chance Ctr Biomed Photon Wuhan Natl Lab Optoelect MoE Key Lab Biomed Photon Wuhan 430074 Peoples R China Mississippi State Univ Dept Elect & Comp Engn Mississippi State MS 39762 USA

Neuronal soma segmentation plays a crucial role in neuroscience applications. However, the fine structure, such as boundaries, small-volume neuronal somata and fibers, are commonly present in cell images, which pose a challenge for accurate segmentation. In this paper, we propose a 3D semantic segmentation network for neuronal soma segmentation to address this issue. Using an encoding-decoding structure, we introduce a Multi-Scale feature extraction and Adaptive Weighting fusion module (MSAW) after each encoding block. The MSAW module can not only emphasize the fine structures via an upsampling strategy, but also provide pixel-wise weights to measure the importance of the multi-scale features. Additionally, a dynamic convolution instead of normal convolution is employed to better adapt the network to input data with different distributions. The proposed MSAW-based semantic segmentation network (MSAW-Net) was evaluated on three neuronal soma images from mouse brain and one neuronal soma image from macaque brain, demonstrating the efficiency of the proposed method. It achieved an F1 score of 91.8% on Fezf2-2A-CreER dataset, 97.1% on LSL-H2b-GFP dataset, 82.8% on Thy1-EGFP-Mline dataset, and 86.9% on macaque dataset, achieving improvements over the 3D U-Net model by 3.1%, 3.3%, 3.9%, and 2.3%, respectively.

关键词： Neuronal soma segmentation semantic segmentation network multi-scale feature extraction adaptive weighting fusion