检索结果-南通市图书馆

Single-shot non-line-of-sight imaging based on chromato-axial differential correlography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2024年第1期12卷 106-114页

作者： LINGFENG LIU SHUO ZHU WENJUN ZHANG LIANFA BAI ENLAI GUO JING HAN Jiangsu Key Laboratory of Spectral Imaging and Intelligent Sense Nanjing University of Science and TechnologyNanjing 210094China

Non-line-of-sight(NLOS)imaging is a challenging task aimed at reconstructing objects outside the direct view of the ***,traditional NLOS imaging methods typically rely on intricate and costly equipment to scan and sample the hidden *** methods often suffer from restricted imaging resolution and require high system ***,we propose a single-shot high-resolution NLOS imaging method via chromato-axial differential correlography,which adopts low-cost continuous-wave lasers and a conventional *** leveraging the uncorrelated laser speckle patterns along the chromato-axis,this method can reconstruct hidden objects of diverse complexity using only one exposure *** achieved background stability through singleshot acquisition,along with the inherent information redundancy in the chromato-axial differential speckles,enhances the robustness of the system against vibration and colored stain *** approach overcomes the limitations of conventional methods by simplifying the sampling process,improving system stability,and achieving enhanced imaging resolution using available *** work serves as a valuable reference for the real-time development and practical implementation of NLOS imaging.

关键词： axial speckle overcome

Electron capture and excitation in intermediate-energy He^(2+)–H(1s,2s)collisions

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第8期33卷 72-79页

作者：刘亚东贾聪聪马茗萱高翔刘玲吴勇陈向军王建国 department of Modern Physics University of Science and Technology of ChinaHefei 230026China Institute of Applied Physics and Computational Mathematitics Beijing 100088China Institute of Modern Physics Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE)Fudan UniversityShanghai 200433China

The semiclassical non-perturbative atomic orbital close-coupling approach has been employed to study the electron capture and excitation processes in He^(2+)-H(1s)and He^(2+)-H(2s)collision *** order to ensure the accuracy of our calculated cross sections,a large number of high excited states and pseudostates are included in the expansion basis sets which are centered on the target and projectile,*** total and partial charge transfer and excitation cross sections are obtained for a wide-energy domain ranging from 1 keV/amu to 200 keV/*** present calculations are also compared with the results from other theoretical *** cross section data are useful for the investigation of astrophysics and laboratory plasma.

关键词： atomic orbital close-coupling(AOCC)method inelastic collision processes electron capture and excitation

Physiological and Biochemical Responses of Perennial Ryegrass Mixed Planting with Legumes under Heavy Metal Pollution

在线全文

学校读者我要写书评

暂无评论

Phyton-International Journal of Experimental Botany 2024年第7期93卷 1749-1765页

作者： Yi Xi Li Zhang Yanhong Xu Wei Cheng Chao Chen College of Animal science Guizhou UniversityGuiyang550025China

In artiﬁcially controlled pot experiments,perennial ryegrass was mixed with other leguminous plants(white clo-ver and alfalfa)and treated with lead,zinc and cadmium(337 mg·kg^(-1),648 mg·kg^(-1),and 9 mg·kg^(-1),respectively)to simulate compound pollution *** results showed that the concentrations of heavy metals,trans-port factors,and bioconcentration factors in mixed planting of ryegrass decreased compared with those in *** of whether heavy metal pollution was introduced,mixed planting increased the aboveground and underground biomasses of *** different mixed planting treatments had no signiﬁcant impact on the chlorophyll concentration of *** mowing time,mixed planting treatment,and heavy metal treatment had impacts on antioxidant and osmotic adjustment substances,and there were some *** mixed planting treatment did not signiﬁcantly affect glutathione concentration,cysteine concentration,or nonprotein *** planting generally increased the nitrogen and phosphorus concentrations of ryegrass while reducing the stoichiometric ratio of carbon,nitrogen,and *** results suggest that the mixed planting of ryegrass with legumes promotes the growth of ryegrass in the presence of high concentrations of heavy metal ***,it does not enhance the ability of ryegrass to remediate heavy metal pollution in the soil.

关键词： Perennial ryegrass mixed planting phytoremediation lead zinc and cadmium soil pollution

Deep learning from three-dimensional Lithium-ion battery multiphysics model Part II:Convolutional neural network and long short-term memory integration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and AI

Energy and AI 2024年第3期17卷 569-578页

作者： Yiheng Pang Anqi Dong Yun Wang Zhiqiang Niu Renewable Energy Resources Lab(RERL) Department of Mechanical and Aerospace EngineeringUniversity of CaliforniaIrvineCaliforniaUSA92697-3975 College of Engineering School of System Design and Intelligent ManufacturingSouthern University of Science and TechnologyChina department of Aeronautical and Automotive Engineering Loughborough UniversityUnited KingdomLE113TU

Lithium-ion (Li-ion) batteries have emerged as a cornerstone of electric vehicles (EVs), enabling the road transportation towards net zero. The success of electric vehicles largely hinges on the battery performance and safety. It is challenging to test and predict battery performance and safety issues by conventional methods, which are usually time-consuming and expensive, involving significant human and measurement errors. To enable the quick estimation of battery performance and safety, we developed three data-driven machine learning (ML) models, namely a convolutional neural network (CNN), a long short-term memory (LSTM), and a CNN-LSTM to predict battery discharge curves and local maximum temperature (hot spot) under various operating conditions. The developed ML models mitigated data scarcity by employing a three-dimensional multi-physics Li-ion battery model to generate enormous and diverse high-quality data. It was found the CNN-LSTM model outperforms the others and achieved high accuracy of 98.68% to learn discharge curves and battery maximum temperature, owing to the integration of spatial and sequential feature extraction. The battery safety can be improved by comparing the predicted maximum battery temperature against safe temperature threshold. The proposed data development and data-driven ML models are of great potential to provide digital tools for engineering high-performance and safe EVs.

关键词： Li-ion batteries CNN LSTM Integration Performance Hot spot

Novel fabrication techniques for ultra-thin silicon based flexible electronics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Extreme Manufacturing 2024年第4期6卷 116-149页

作者： Ju Young Lee Jeong Eun Ju Chanwoo Lee Sang Min Won Ki Jun Yu School of Electrical and Electronic Engineering Yonsei University50 Yonsei-roSeodaemunguSeoul 03722Republic of Korea department of Electrical and Computer Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea YU-Korea Institute of science and technology(KIST)Institute Yonsei University50Yonsei-roSeodaemun-guSeoul 03722Republic of Korea

Flexible electronics offer a multitude of advantages,such as flexibility,lightweight property,portability,and high *** unique properties allow for seamless applications to curved and soft surfaces,leading to extensive utilization across a wide range of fields in consumer *** applications,for example,span integrated circuits,solar cells,batteries,wearable devices,bio-implants,soft robotics,and biomimetic ***,flexible electronic devices have been developed using a variety of materials such as organic,carbon-based,and inorganic semiconducting ***(Si)owing to its mature fabrication process,excellent electrical,optical,thermal properties,and cost efficiency,remains a compelling material choice for flexible ***,the research on ultra-thin Si in the context of flexible electronics is studied rigorously *** thinning of Si is crucially important for flexible electronics as it reduces its bending stiffness and the resultant bending strain,thereby enhancing flexibility while preserving its exceptional *** review provides a comprehensive overview of the recent efforts in the fabrication techniques for forming ultra-thin Si using top-down and bottom-up approaches and explores their utilization in flexible electronics and their applications.

关键词： flexible electronics silicon fabrication technique top-down approach bottom-up approach

Parameter estimation in n-dimensional massless scalar field

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第3期33卷 231-237页

作者：杨颖荆继良 Hunan Provincial Key Laboratory of Intelligent Sensors and Advanced Sensor Materials School of Physics and ElectronicsHunan University of Science and TechnologyXiangtan 411201China department of Physics Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Educationand Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081Chin

Quantum Fisher information(QFI)associated with local metrology has been used to parameter estimation in open quantum *** this work,we calculated the QFI for a moving Unruh-DeWitt detector coupled with massless scalar fields in n-dimensional spacetime,and analyzed the behavior of QFI with various parameters,such as the dimension of spacetime,evolution time,and Unruh *** discovered that the QFI of state parameter decreases monotonically from 1 to 0 over ***,we noted that the QFI for small evolution times is several orders of magnitude higher than the QFI for long evolution *** also found that the value of QFI decreases at first and then stabilizes as the Unruh temperature *** was observed that the QFI depends on initial state parameterθ,and Fθis the maximum forθ=0 orθ=π,Fφis the maximum forθ=π/*** also obtain that the maximum value of QFI for state parameters varies for different spacetime dimensions with the same evolution time.

关键词： quantum Fisher information parameter estimation open quantum systems

SLC6A14 promotes ulcerative colitis progression by facilitating NLRP3 inflammasome-mediated pyroptosis

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第3期30卷 252-267页

作者： Qing Gu Huan Xia Yue-Qiong Song Jun Duan Yun Chen You Zhang He-Ping Chen Li Zhang department of Elderly Digestive Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalUniversity of Electronic Science and TechnologyChengdu 610072Sichuan ProvinceChina Geriatrics Research Institute Sichuan Provincial People’s HospitalChengdu 610072Sichuan ProvinceChina

BACKGROUND Ulcerative colitis(UC)is an inflammatory condition with frequent relapse and *** suggests the involvement of SLC6A14 in UC pathogenesis,but the central regulator remains *** To explore the role of SLC6A14 in UC-associated *** Quantitative real-time polymerase chain reaction(qRT-PCR),immunoblotting,and immunohistochemical were used to assess SLC6A14 in human UC ***(LPS)was used to induce inflammation in FHC and NCM460 cells and model enteritis,and SLC6A14 levels were *** markers were quantified using enzyme-linked immunosorbent assay,Western blotting,and qRT-PCR,and EdU incubation,CCK-8 assays and flow cytometry were used to examine proliferation and *** models of UC were used for *** SLC6A14 was increased and correlated with NLRP3 in UC ***-induced FHC and NCM460 cells showed increased SLC6A14 *** SLC6A14 increased cell proliferation and suppressed *** SLC6A14 decreased pyroptosis-associated proteins(ASC,IL-1β,IL-18,NLRP3).NLRP3 overexpression counteracted the effects of sh-SLC6A14 on LPS-induced FHC and NCM460 cell ***6A14 improved the mucosa in mice with dextran sulfate sodium-induced *** SLC6A14 promotes UC pyroptosis by regulating NLRP3,suggesting the therapeutic potential of modulating the SLC6A14/NLRP3 axis.

关键词： Ulcerative colitis SLC6A1 NLRP3 Pyroptosis Inflammasome

SPEED:an integrated,smartphone-operated,handheld digital PCR Device for point-of-care testing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2024年第3期10卷 149-158页

作者： Haoqing Zhang Xiaocheng Liu Xinlu Wang Zhiqiang Yan Ying Xu Martina Gaňová TomášŘezníček Marie Korabečná Pavel Neuzil Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace School of Mechanical EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’anShaanxi 710072PR China The Key Laboratory of Biomedical information Engineering of the Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’anShaanxi 710049PR China Bioinspired Engineering and Biomechanics Center(BEBC) Xi’an Jiaotong UniversityXi’an 710049PR China School of Marine science and technology Northwestern Polytechnical UniversityXi’anShaanxi 710072PR China Central European Institute of technology Brno University of TechnologyPurkyňova 12361300 BrnoCzech Republic ITD Tech S.R.O Osvoboditelu100573581 BohumínCzech Republic Institute of Biology and Medical Genetics First Faculty of MedicineCharles University and General University Hospital of PragueAlbertov 412800 PragueCzech Republic

This study elaborates on the design,fabrication,and data analysis details of SPEED,a recently proposed smartphonebased digital polymerase chain reaction(dPCR)*** dPCR chips incorporate partition diameters ranging from 50μm to 5μm,and these partitions are organized into six distinct blocks to facilitate image *** to the superior thermal conductivity of Si and its potential for mass production,the dPCR chips were fabricated on a Si substrate.A temperature control system based on a high-power density Peltier element and a preheating/cooling PCR protocol user interface shortening the thermal cycle *** optical design employs four 470 nm light-emitting diodes as light sources,with filters and mirrors effectively managing the light emitted during *** algorithm is utilized for image processing and illumination nonuniformity correction including conversion to a monochromatic format,partition identification,skew correction,and the generation of an image correction *** validated the device using a range of deoxyribonucleic acid targets,demonstrating its potential applicability across multiple ***,we provide guidance and verification of the design and testing of the recently proposed SPEED device.

关键词： correction smart testing

Preliminary compact torus injection experiments on the Keda Torus eXperiment reversed field pinch

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plasma science and technology 2024年第10期26卷 56-64页

作者： Tao LAN Chen CHEN Chijin XIAO Weixing DING Jie WU Wenzhe MAO Sen ZHANG Defeng KONG Shoubiao ZHANG Zhengwei WU Qilong DONG Yongkang ZHOU Hangqi XU Jiaren WU Zian WEI Xiaohui WEN Hai WANG Chu ZHOU Adi LIU Hong LI Jinlin XIE Wandong LIU Ge ZHUANG department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefei 230026People’s Republic of China Plasma Physics Laboratory University of SaskatchewanSaskatoon SK S7N 5E2Canada Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China

A new compact torus injector(KTX-CTI)has been built for injection experiments on the Keda Torus eXperiment(KTX)reversed field pinch(RFP).The aim is to study the fundamental physics governing the compact torus(CT)central fueling *** experiments conducted under the sole influence of a 0.1 T toroidal magnetic field,the injected CT successfully penetrated the entire toroidal magnetic field,reaching the inner wall of the KTX vacuum *** reaching the inner wall,the CT diffused both radially outward and toroidally within the vessel at a discernible diffusion ***,the inherent helicity within the CT induced a modest KTX plasma current of 200 A,consistent with predictions based on helicity *** injection demonstrated the capability to initiate KTX discharges at low loop voltages,suggesting its potential as a pre-ionization and current startup *** RFP discharges featuring CT injection,the central plasma density was found to exceed the Greenwald density limit,with more peaked density profiles,indicating the predominant confinement of CT plasma within the core region of the KTX bulk plasma.

关键词： compact torus fueling reversed field pinch density limit