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Science China Chemistry 2025年第01期 257-263页

作者： Jiapian Huang Chenxin wang Xu wang Xiaoyu Zhou Wei Xiao Jie Wu School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences School of Chemistry and Chemical Engineering Henan Normal University

The generation of various β-chiral sulfones bearing chiral cyclic sulfinamides through photoredox-catalyzed sulfur dioxide insertion with asymmetric radical cyclization is described. This method features a broad substrate scope and excellent stereospecificity. Computational studies reveal that the dispersion interaction between sulfinyl group and CH2SO2Ph group plays a crucial role in the stereoselectivity control.

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Squeezing States of Magnons in a Ferromagnet

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Communications in Theoretical Physics 2006年第4期45卷 745-748页

作者： wang Jun-Feng CHENG ze Department of Physics Huazhong University of Science and Technology Wuhan 430074 China

In this paper, we conduct an investigation into magnon self-squeezing states in a ferromagnet. In these states, the quantum fluctuations of the spin components can be lower than the zero-point quantum fluctuations of the coherent states. Through calculating the expectation values of spin fluctuations we gain the condition of achieving magnon self-squeezing. We introduce the mean-field theory for dealing with the nonlinear interaction term of Hamiltonian of magnon system.

关键词： self-squeezing state spin wave magnon quantum fluctuation

Reliability analysis of k-out-of-n system with load-sharing and failure propagation effect

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Journal of Systems Engineering and Electronics 2021年第5期32卷 1221-1231页

作者： CHEN Ying MA Qichao wang ze LI Yingyi Science and Technology on Reliability and Environmental Engineering Laboratory Beihang UniversityBeijing 100191China Institute of Electronic Engineering China Academy of Engineering PhysicsMianyang 621999China

In complex systems,functional dependency and physical dependency may have a coupling *** this paper,the reliability of a k-out-of-n system is analyzed considering load-sharing effect and failure mechanism(FM)*** types of FMs are considered and an accumulative damage model is proposed to illustrate the system behavior of the k-out-of-n system and the coupling effect between load-sharing effect and FM propagation effect.A combinational algorithm based on Binary decision diagram(BDD)and Monte-Carlo simulation is presented to evaluate the complex system behavior and reliability of the k-out-of-n system.A current stabilizing system that consists of a 3-out-of-6 subsystem with FM propagation effect is presented as a case to illustrate the complex behavior and to verify the applicability of the proposed *** to the coupling effect change,the main mechanism and failure mode will be changed,and the system lifetime is *** are analyzed and results show that different sensitivity factors of three different FMs lead to the change of the development rate,thus changing the failure *** the coupling effect may lead to an incomplete and ineffective measuring and monitoring *** strategies must be adopted to make the FM propagation insensitive to load-sharing effect.

关键词： k-out-of-n system load-sharing effect failure mechanism propagation damage factor model combinational algorithm

Surrounding Objects Detection and Tracking for Autonomous Driving Using LiDAR and Radar Fusion

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Chinese Journal of Mechanical Engineering 2021年第5期34卷 69-80页

作者： ze Liu Yingfeng Cai Hai wang Long Chen Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang 212013China

Radar and LiDAR are two environmental sensors commonly used in autonomous vehicles,Lidars are accurate in determining objects’positions but significantly less accurate as Radars on measuring their ***,Radars relative to Lidars are more accurate on measuring objects velocities but less accurate on determining their positions as they have a lower spatial *** order to compensate for the low detection accuracy,incomplete target attributes and poor environmental adaptability of single sensors such as Radar and LiDAR,in this paper,an effective method for high-precision detection and tracking of surrounding targets of autonomous *** employing the Unscented Kalman Filter,Radar and LiDAR information is effectively fused to achieve high-precision detection of the position and speed information of targets around the autonomous ***,the real vehicle test under various driving environment scenarios is carried *** experimental results show that the proposed sensor fusion method can effectively detect and track the vehicle peripheral targets with high *** with a single sensor,it has obvious advantages and can improve the intelligence level of autonomous cars.

关键词： Autonomous vehicle Radar and LiDAR information fusion Unscented Kalman filter Target detection and tracking

Wafer-Scale Vertical 1D GaN Nanorods/2D MoS₂/PEDOT:PSS for Piezophototronic Effect-Enhanced Self-Powered Flexible Photodetectors

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NANO-MICRO leTTERS 2025年第1期17卷 1-15页

作者： Tang, Xin Jiang, Hongsheng Lin, Zhengliang wang, Xuan wang, Wenliang Li, Guoqiang South China Univ Technol State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China South China Univ Technol Sch Mat Sci & Engn Dept Elect Mat Guangzhou 510640 Peoples R China

Vertical 1D GaN nanorod arrays/2D MoS2/PEDOT:PSS heterostructures in wafer scale have been fabricated for flexible photodetection ***-powered flexible photodetector at compressive strain reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W-1 and response times of 40/45 mu s, which are superior to the state-of-the-art flexible *** work not only provides a valuable strategy for the design and construction of tunable van der Waals heterostructures, but also opens a new opportunity for flexible sensors. van der Waals (vdW) heterostructures constructed by low-dimensional (0D, 1D, and 2D) materials are emerging as one of the most appealing systems in next-generation flexible photodetection. Currently, hand-stacked vdW-type photodetectors are not compatible with large-area-array fabrication and show unimpressive performance in self-powered mode. Herein, vertical 1D GaN nanorods arrays (NRAs)/2D MoS2/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays firstly. The as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W-1 and a high detectivity of 1.2 x 1011 Jones, as well as a fast response speed of 54/71 mu s, thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II heterojunction. Notably, the strain-tunable photodetection performances of device have been demonstrated. Impressively, the device at - 0.78% strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W-1, a detectivity of 2.6 x 1011 Jones, and response times of 40/45 mu s, which are superior to the state-of-the-art self-powered flexible photodetectors. This work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection, which performs well in flexible sensors.

关键词： Vertical nanorod arrays van der Waals heterostructure Piezophototronic effect Self-powered photodetection Flexible sensors

Silk damping in scalar-induced gravitational waves: a novel probe for new physics

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 79-85页

作者： Yan-Heng Yu Sai wang Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences

Silk damping is well known in the study of cosmic microwave background（CMB） and accounts for suppression of the angular power spectrum of CMB on large angular multipoles. In this article, we study the effect of Silk damping on the scalar-induced gravitational waves（SIGWs）. Resulting from the dissipation of cosmic fluid, the Silk damping notably suppresses the energydensity spectrum of SIGWs on scales comparable to a diffusion scale at the decoupling time of weakly-interacting particles. The effect offers a novel observable for probing the underlying particle interaction, especially for those mediated by heavy gauge bosons beyond the standard model of particles. We anticipate that pulsar timing arrays are sensitive to gauge bosons with mass ～10～3-10～4 GeV, while space-and ground-based interferometers to those with mass ～10～7-1012GeV, leading to essential complements to on-going and future experiments of high-energy physics.

关键词： scalar-induced gravitational waves Silk damping new physics

In situ synthesis of Fe-based alloy clad coatings containing TiB_2–TiN –(h-BN)

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International Journal of Minerals,Metallurgy and Materials 2015年第6期22卷 613-619页

作者： Shao-qun Jiang Gang wang Qing-wen Ren Chuan-duo Yang ze-hua wang and ze-hua Zhou College of Mechanics and Materials Hohai University Changzhou Hohai Institute of Science and Technology Limited Liability Company

Fe-based alloy coatings containing TiB2–TiN –（h-BN） were synthesized in situ on Q235 steel substrates by a plasma cladding process using the powders of Fe901 alloy, Ti, and h-BN as raw materials. The effects of Ti/h-BN mass ratio on interfacial bonds between the coating and substrate along with the microstructures and microhardnesses of the coatings were investigated. The results show that the Ti/h-BN mass ratio is a vital factor in the formation of the coatings. Free h-BN can be introduced into the coatings by adding an excess amount of h-BN into the precursor. Decreases in the Ti/h-BN mass ratio improve the microstructural uniformity and compactness and enhance the interfacial bonds of the coatings. At a Ti/h-BN mass ratio of 10/20, the coating is free of cracks and micropores, and mainly consists of Fe-Cr, Fe3B, TiB2, TiN, Ti2N, TiB, FeN, FeB, Fe2B, and h-BN phases. Its average microhardness in the zone between 0.1–2.8 mm from the coating surface is about Hv0.2 551.5.

关键词： iron-based materials coatings plasma cladding in situ synthesis microhardness

Challenges in membrane-based liquid phase separations

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Green Chemical Engineering 2021年第1期2卷 3-13页

作者： ze-Xian Low Huanting wang Department of Chemical Engineering Monash UniversityClaytonVictoria3800Australia

Membranes are widely used in separation processes due to their low energy requirement,small footprint and *** membranes have been developed based on novel materials and fabrication techniques to address separation challenges in the field of membrane *** the case of liquid phase separations,ion-ion separation and chiral resolution using membranes have attracted growing interest for their applications such as in high-value mineral extraction and pharmaceutical ***,reverse osmosis operation favors ultra-high-pressure range for treating feed with higher salinity with higher water *** we highlight the latest development and design approaches of single species-selective membranes and pressure-resistant membranes and discuss the current limitations of membrane separation in the liquid *** subsequently review recent advancement in the fabrication techniques that enable the making of these membranes from emerging materials.

关键词： materials. separation phase.

Multiple liver metastases of unknown origin:A case report

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 233-238页

作者： Ying-Jin wang ze-Chuan Liu Jian wang Yin-Mo Yang Department of Hepatobiliary Pancreatic Surgery Peking University First HospitalBeijing 100034China Department of Interventional and Vascular Surgery Peking University First HospitalBeijing 100034China

BACKGROUND The liver is the most common site of digestive system tumor metastasis,but not all liver metastases can be traced back to the primary *** it is unusual,syphilis can impact the liver,manifesting as syphilitic hepatitis with inflammatory nodules,which might be misdiagnosed as *** SUMMARY This case report involves a 46-year-old female who developed right upper abdominal pain and intermittent low fever that persisted for more than three *** definitive diagnosis of a tumor had been made in the past decades,but signs of multiple liver metastases were recognized after a computed tomo-graphy scan without evidence of primary *** positive serological tests for syphilis and a biopsy of the liver nodules,a diagnosis of hepatic syphilis was made and confirmed with follow-up nodule reduction after anti-syphilis *** Clinicians must be aware of the possibility that syphilis can cause hepatic inflam-matory masses,especially when liver metastasis is suspected without evidence of primary lesions.A definitive diagnosis should be established in conjunction with a review of the patient’s medical history for accurate therapeutic intervention.

关键词： Syphilitic hepatitis Liver nodules Liver metastasis Treponema pallidum Case report

Isolation of a Plasmalemma Aquaporin Encoding Gene StPIP1 from Solanum tuberosum L. and Its Expression in Transgenic Tobacco

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Agricultural Sciences in China 2009年第10期8卷 1174-1186页

作者： WU wang-ze PENG Xiao-li wang Di Crop Research Institute Academy of Agri-Science Anhui Province Hefei 230031 P.R.China College of Agronomy Gansu Agricultural University Lanzhou 730070 P.R. China Gansu Key Lab of Crop Improvement ＆ Germplasm Enhancement Lanzhou 730070 P.R. China School of Biotechnology and Food Engineering Hefei University of Technology Hefei 230009 P.R.China

Aquaporin （AQP） belongs to a highly conserved group of membrane proteins considered as major intrinsic proteins, which facilitate water transport across biological membranes. The discovery of AQPs in plants has resulted in a paradigm shift in the understanding of plant-water relations, however, the potential relationship between the role of aquaporins in regulating plant water balance and drought tolerance still remains elusive. In this study, the gene encoding potato AQP cDNA, StPIP1 （GenBank accession no. DQ999080）, was cloned from the leaf of potato cultivar Gannongshu 2 by reverse transcription-PCR （RT-PCR）. Sequence alignment was made by BLASTn in GenBank, the phylogenetic analysis was conducted using PHYLIPWY, the 3D structure was predicted in Swiss-Model server. Subcellular localization of StPIP1 was performed by constructing CaMV35S-StPIP1-GFP and rd29A-StPIP1-GFP fusion proteins and transient expression in onion epidermis. To understand StPIP1 physiological functions in potato under various stress conditions, the StPIP1 gene in a reverse orientation was transformed into tobacco driven by the Cauliflower mosaic virus （CMV） 35S promoter. The expression levels of transgenic and wild-type plants were assessed under various abiotic stress conditions using semi-quantitative RT-PCR, and the morphological and physiological responses of transgenic plants to different stress conditions were investigated. The expression of StPIP1 mRNA decreased in transgenic plants under non-stress and stress conditions, however, the reduction was more severer under drought stress. In both non-stress and stress conditions, StPIP1 was expressed predominantly in root. The morphological and physiological investigation showed no significant differences in growth rate, germination rate, and root fresh weight （FW） between transgenic and wild-type plants when grown under favorable conditions. In contrast, under drought stress, the reduction in StPIPI expression leads to a delay in seed germi

关键词： aquaporin Solanum tuberosum L. drought stress gene cloning sequence analysis gene expression