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An asymptotically optimal public parking lot location algorithm based on intuitive reasoning

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Intelligent and Converged Networks 2022年第3期3卷 260-270页

作者： Chao wang Wei Zhang sumin wang Key Laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics Advanced Communication Shanghai Institute for Advanced Communication and Data ScienceShanghai UniversityShanghai 200444China Department of Information Engineering Gannan University of Science and TechnologyGanzhou 341000China

In order to solve the problems of road traffic congestion and the increasing parking time caused by the imbalance of parking lot supply and demand,this paper proposes an asymptotically optimal public parking lot location algorithm based on intuitive reasoning to optimize the parking lot location problem.Guided by the idea of intuitive reasoning,we use walking distance as indicator to measure the variability among location data and build a combinatorial optimization model aimed at guiding search decisions in the solution space of complex problems to find optimal solutions.First,Selective Attention Mechanism(SAM)is introduced to reduce the search space by adaptively focusing on the important information in the features.Then,Quantum Annealing(QA)algorithm with quantum tunneling effect is used to jump out of the local extremum in the search space with high probability and further approach the global optimal solution.Experiments on the parking lot location dataset in Luohu District,Shenzhen,show that the proposed method has improved the accuracy and running speed of the solution,and the asymptotic optimality of the algorithm and its effectiveness in solving the public parking lot location problem are verified.

关键词： intuitive reasoning selective attention mechanism quantum annealing algorithm Quadratic Unconstrained Binary Optimization(QUBO)model parking lot location

The abundance,characteristics and diversity of microplastics in the South China Sea:Observation around three remote islands

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Frontiers of Environmental Science & Engineering 2022年第1期16卷 117-128页

作者： Hongzhe Chen sumin wang Huige Guo Yunlong Huo Hui Lin Yuanbiao Zhang Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China

Surrounded by emerging markets with considerable plastic consumption,the South China Sea has been a focus area of microplastic research.A survey on the floating microplastics(>0.3 mm)and microplastics ingested by fish and mollusks was conducted around three remote islands here.Compared with the results from several previous studies,a high abundance of floating microplastics(with a median of 1.9×10^(5)items/km^(2) or 0.7 items/m^(3))was observed,revealing another“hot spot”for microplastics.Polyolefin,especially polypropylene,was the main component.The diversity index and evenness index were calculated and evaluated based on the composition of microplastics.The characteristic peaks of Raman spectra concerning pigmented microplastics were provided.Transparent sheets/films were predominant in the water sample,which was quite different from a similar study in this sea area(8.9%for film),and only 16.4%of floating microplastics(>0.3 mm)were fibers/lines,implying that the main sources of floating microplastics(>0.3 mm)might be household/agricultural consumption activities.The transparent fiber/line was also dominant in organisms.It is suggested that the main sources of microplastics ingested by organisms might be both fabric fibers and fishing/aquaculture.

关键词： Microplastics Coral reefs Abundance Diversity Characteristics

Temporal and spatial distribution characteristics of nutrients in Clarion-Clipperton Fracture Zone in the Pacific in 2017

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Acta Oceanologica Sinica 2022年第1期41卷 1-10页

作者： Baohong Chen Kaiwen Zhou Kang wang Jigang wang sumin wang Xiuwu Sun Jinmin Chen Cai Lin Hui Lin Third Institute of Oceanography Ministry of Natural ResourceXiamen 361005China Institute for Advanced Ocean Study Ocean University of ChinaQingdao 266003China

This research investigated eight stations in Clarion-Clipperton Fracture Zone(CCFZ)in the eastern tropical Pacific in 2017 to study the spatial distribution characteristics of nutrients and chlorophyll a(Chi a)concentration,and compared nutrient concentrations and molar ratios with those of other investigations 20 years ago in the same area.The study found that dissolved inorganic nutrient(N,P and Si)concentrations were lowest in the upper layer,and increased from surface to some depths,then they decreased a little to the bottom.N was the limited nutrient factor for the growth of phytoplankton community.Although nutrient concentrations and molar ratios have no obvious changes in 2017 comparing those in 1998-2003,supplemented from the equatorial Pacific,nutrient concentrations in the study area were higher than those in seamounts in the North Pacific and Station ALOHA.Furthermore,this study used Generalized Additive Models(GAMs)to infer the underlying bottom-up factors controlling phytoplankton abundance(Chi a concentration),showing that depth,salinity and PO^-P concentration were major factors controlling the growth of phytoplankton community.Furthermore,this study can provide basic data and theoretical support for the development of polymetallic nodule area and its long-term impact assessment on the environment.

关键词： nutrients Chla GAMs CCFZ Pacific

Research on recognition algorithm for gesture page turning based on wireless sensing

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Intelligent and Converged Networks 2023年第1期4卷 15-27页

作者： Lin Tang sumin wang Meng Zhou Yinfan Ding Chao wang Shengbo wang Zhen Sun Jie Wu Key Laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics and Advanced CommunicationShanghai Institute for Advanced Communication and Data ScienceSchool of Communication and Information EngineeringShanghai UniversityShanghai 200444China School of Electronic Information Engineering Gannan University of Science and TechnologyGanzhou 341000China Affiliated High School of Peking University Beijing 100086China Peking University&National Engineering Laboratory for Big Data Analysis and Applications Beijing 100871China Department of Computer and Information Sciences Temple UniversityPhiladelphiaPA 19122-6096USA

When a human body moves within the coverage range of Wi-Fi signals,the reflected Wi-Fi signals by the various parts of the human body change the propagation path,so analysis of the channel state data can achieve the perception of the human motion.By extracting the Channel State Information(CSI)related to human motion from the Wi-Fi signals and analyzing it with the introduced machine learning classification algorithm,the human motion in the spatial environment can be perceived.On the basis of this theory,this paper proposed an algorithm of human behavior recognition based on CSI wireless sensing to realize deviceless and over-the-air slide turning.This algorithm collects the environmental information containing upward or downward wave in a conference room scene,uses the local outlier factor detection algorithm to segment the actions,and then the time domain features are extracted to train Support Vector Machine(SVM)and eXtreme Gradient Boosting(XGBoost)classification modules.The experimental results show that the average accuracy of the XGBoost module sensing slide flipping can reach 94%,and the SVM module can reach 89%,so the module could be extended to the field of smart classroom and significantly improve speech efficiency.

关键词： Wi-Fi signal Channel State Information(CSI) wireless sensing human behavior recognition

Defect engineering for high-selection-performance of NO reduction to NH3 over CeO_(2)(111)surface:A DFT study

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Chinese Chemical Letters 2022年第1期33卷 527-532页

作者： Chaozheng He Risheng Sun Ling Fu Jinrong Huo Chenxu Zhao Xiuyuan Li Yan Song sumin wang Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices School of Materials Science and Chemical EngineeringXi'an Technological UniversityXi'an 710021China Institute of Environmental and Energy Catalysis School of Materials Science and Chemical EngineeringXi'an Technological UniversityXi'an 710021China College of Resources and Environmental Engineering Tianshui Normal UniversityTianshui 741001China School of Sciences Xi'an Technological UniversityXi'an 710021China

To reduce the greenhouse effect caused by the surgery of nitrogen-oxides concentration in the atmosphere and develop a future energy carrier of renewables,it is very critical to develop more efficient,controllable,and highly sensitive catalytic materials.In our work,we proposed that nitric oxide(NO),as a supplement to N_(2) for the synthesis of ammonia,which is equipped with a lower barrier.And the study highlighted the potential of CeO_(2)(111)nanosheets with La doping and oxygen vacancy(OV)as a high-performance,controllable material for NO capture at the site of Vo site,and separation the process of hydrogenation.We also reported that the E_(ads) of-1.12 eV with horizontal adsorption and the Bader charge of N increasing of 0.53|e|and O increasing of 0.17|e|at the most active site of reduction-OV predicted.It is worth noting thatΔG of NORR(NO reduction reaction)shows good performance(thermodynamically spontaneous reaction)to synthesize ammonia and water at room temperature in the theoretical calculation.

关键词： La-doping CeO_(2) Bader analysis Oxygen vacancy(OV) Single atom catalysis Synergistic effect NO reduction reaction(NORR)

Dual-logic-in-memory implementation with orthogonal polarization of van der Waals ferroelectric heterostructure

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InfoMat 2024年第2期6卷 107-117页

作者： Jingjie Niu sumin Jeon Donggyu Kim Sungpyo Baek Hyun Ho Yoo Jie Li Ji-Sang Park Yoonmyung Lee Sungjoo Lee SKKU Advanced Institute of Nanotechnology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Nano Science and Technology Sungkyunkwan UniversitySuwonRepublic of Korea Department of Electrical and Computer Engineering Sungkyunkwan UniversitySuwonRepublic of Korea IMEC HeverleeBelgium Department of Nano Engineering Sungkyunkwan UniversitySuwonRepublic of Korea

The rapid advancement of AI-enabled applications has resulted in an increasing need for energy-efficient computing hardware.Logic-in-memory is a promising approach for processing the data stored in memory,wherein fast and efficient computations are possible owing to the parallel execution of reconfigurable logic operations.In this study,a dual-logic-in-memory device,which can simultaneously perform two logic operations in four states,is demonstrated using van der Waals ferroelectric field-effect transistors(vdW FeFETs).The proposed dual-logic-in-memory device,which also acts as a twobit storage device,is a single bidirectional polarization-integrated ferroelectric field-effect transistor(BPI-FeFET).It is fabricated by integrating an in-plane vdW ferroelectric semiconductor SnS and an out-of-plane vdW ferroelectric gate dielectric material—CuInP_(2)S_(6).Four reliable resistance states with excellent endurance and retention characteristics were achieved.The two-bit storage mechanism in a BPI-FeFET was analyzed from two perspectives:carrier density and carrier injection controls,which originated from the out-of-plane polarization of the gate dielectric and in-plane polarization of the semiconductor,respectively.Unlike conventional multilevel FeFETs,the proposed BPIFeFET does not require additional pre-examination or erasing steps to switch from/to an intermediate polarization,enabling direct switching between the four memory states.To utilize the fabricated BPI-FeFET as a dual-logic-inmemory device,two logical operations were selected(XOR and AND),and their parallel execution was demonstrated.Different types of logic operations could be implemented by selecting different initial states,demonstrating various types of functions required for numerous neural network operations.The flexibility and efficiency of the proposed dual-logic-in-memory device appear promising in the realization of next-generation low-power computing systems.

关键词： ferroelectric field-effect transistor in-plane ferroelectricity logic-in-memory out-of-plane ferroelectricity

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ESCRT,病毒感染的“双刃剑”

中国兽医科学 2024年第2期54卷 283-284页

作者： Xuefei wang Sahibzada Waheed Abdullah Jin'en Wu Jianli Tang Yun Zhang Hu Dong Manyuan Bai sumin Wei Shiqi Sun Huichen Guo State Key Laboratory for Animal Disease Control and Prevention National Foot-and-Mouth Disease Reference Laboratory Lanzhou Veterinary Research Institute Chinese Academy of Agricultural Sciences Lanzhou Gansu China. State Key Laboratory for Animal Disease Control and Prevention College of Veterinary Medicine Lanzhou University Lanzhou Gansu China.

内体分选转运复合体(endosomalsortingcomplex required for transport,ESCRT)是细胞中一个复杂的系统,该系统在病毒感染中起着“双刃剑”的作用,即它们能够被不同家族病毒劫持用于自身增殖,也能被宿主细胞利用对抗病毒的侵染。在病毒... 详细信息

内体分选转运复合体(endosomalsortingcomplex required for transport,ESCRT)是细胞中一个复杂的系统,该系统在病毒感染中起着“双刃剑”的作用,即它们能够被不同家族病毒劫持用于自身增殖,也能被宿主细胞利用对抗病毒的侵染。在病毒生命周期的不同阶段,病毒可以通过多种方式利用或限制ESCRT系统介导的生理过程,或者直接调控ESCRT系统的各蛋白组分的表达增加感染宿主的能力。ESCRT是由20多种蛋白质组成的复合体。根据其成分及其功能差异可以分为若干个复合物,即ESCRT-0、ESCRT-Ⅰ、ESCRT-Ⅱ、ESCRT-Ⅲ.

关键词：病毒感染蛋白组分蛋白质组成宿主细胞复合体功能差异感染宿主双刃剑

Peptidome analysis of human intrauterine adhesion tissues and the identification of antifibrotic peptide

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The Journal of Biomedical Research 2022年第4期36卷 280-296页

作者： Xiangdong Hua Yan Zhang Juan Xu Lu Xu Yaqian Shi Dazhen Yang Xiaoyan Gu sumin wang Xuemei Jia Feng Xu Jie Chen Xiaoyan Ying Department of Gynecology Women's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjingJiangsu 210004China Department of Obstetrics and Gynecology the Second Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu 210011China

Intrauterine adhesion(IUA)is a common clinical endometrial disease,which can severely damage the fertility and quality of life in women.This study aims to find the differentially expressed endogenous peptides and their possible roles in IUA.Liquid chromatography-mass spectrometry was used to identify the peptidomic profiling of IUA tissues,and the differentially expressed peptides were screened out.Using real-time quantitative PCR,Western blotting,and immunocytochemistry staining,the function of six endogenous peptides was verified in vitro.It was found that peptide 6(T6)(peptide sequence:TFGGAPGFPLGSPLSSVFPR)could inhibit the expression of TGF-β1-induced cell fibrosis in human endometrial stromal cell line and primary human endometrial stromal cell at a concentration of 50μmol/L.This study provides new targets for further clarifying the formation and prevention of IUA.

关键词： Asherman's syndrome fibrosis peptide stromal cells

Efficacy of intrauterine balloon stent or oral estrogen on prevention of adhesion after transcervical resection of septum in septate uterus:Study protocol for a randomized controlled multicenter study in China

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Chinese Medical Journal 2023年第24期136卷 3016-3018页

作者： Shan Deng Zichen Zhao Limin Feng Xiaowu Huang sumin wang Xiang Xue Lei Yan Baorong Ma Lijuan Hao Xueying Li Lihua Yang Lan Zhu Department of Obstetrics and Gynecology National Clinical Research Center for Obstetric&Gynecologic DiseasesPeking Union Medical College HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China Department of Obstetrics and Gynecology Beijing Tiantan HospitalCapital Medical UniversityBeijing 100070China Department of Hysteroscopic Center Fuxing HospitalCapital Medical UniversityBeijing 100038China Nanjing Maternity and Child Health Care Hospital Jiangsu Province 210004China The Second Affiliated Hospital of Xi’an Jiaotong University Shanxi Province 710004China Center for Reproductive Medicine Cheeloo College of MedicineShandong UniversityShandong Province 250012China Tianjin Central Hospital of Obstetrics and Gynecology Tianjin 300199China Chongqing Health Center for Women and Children Chongqing 401147China Hunan Provincial Maternal and Child Health Care Hospital Hunan Province 410008China Tangshan Maternal and Child Health Care Hospital Hebei Province 063000China

To the Editor:The septate uterus is the most common uterine anomaly and is associated with an increased risk of adverse reproductive outcomes.Transcervical resection of septum(TCRS)is widely performed in patients with adverse reproductive outcomes.The incidence of de novo intrauterine adhesions(IUAs)after TCRS is approximately 5%to 25%.[1]Various anti-adhesion methods are widely used in the clinical management of patients with septate uteri,including intrauterine devices,Foley balloons,estrogen,antibiotics,and hyaluronic acid gel.However,insufficient evidence supports or opposes any of these methods(Level C),[2]lacking high-grade evidence.

关键词： prevention septum after