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AN APPLIED RESEARCH ON APPROACH OF DYADIC WAVELET TRANSFORM FOR REMOTE SENSING IMAGE EDGE DETECTION

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Journal of Electronics(China) 2006年第4期23卷 535-538页

作者： fu wei xing guangzhong Hou Lantian Qin Qiming Wang Wenjun Department of Communicaton ＆ Electricity Engineering Yanshan University Qinhuangdao 066004 China Remote Sensing Institute Peking University Beijing 100871 China

In the edge detection of Remote Sensing (RS) image, the useful detail losing and the spurious edge often appear. To solve the problem, the authors uses the dyadic wavelet to detect the edge of surface features by combining the edge detecting with the multi-resolution analyzing of the wavelet transform. Via the dyadic wavelet decomposing, the RS image of a certain appropriate scale is obtained, and the edge data of the plane and the upright directions are respectively figured out, then the gradient vector module of the surface features is worked out. By tracing them, the authors get the edge data of the object, therefore build the RS image which obtains the checked edge. This method can depress the effect of noise and examine exactly the edge data of the object by rule and line. With an experiment of an RS image which obtains an airport, the authors certificate the feasibility of the application of dyadic wavelet in the object edge detection.

关键词： Dyadic wavelet transform Edge detection and tracking of Remote Sensing (RS) Object recognition

RETRACTION NOTE:A MODIFIED EDGE-ORIENTED SPATIAL INTERPOLATION ALGORITHM FOR CONSECUTIVE BLOCKS ERROR CONCEALMENT

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Journal of Electronics(China) 2011年第4期28卷 I0002-I0002页

作者： fu wei xing guangzhong Department of Communication and Electronic Engineering Yanshan University Qinhuangdao 055004 China

Retraction: fu wei and xing guangzhong. A Modified Edge-oriented Spatial Interpolation Algorithm forConsecutive Blocks Error Concealment. Journal of Electronics (China), 24(2), 214-217.

关键词：插值算法错误隐藏 EDGE 空间回缩 DOI 中国

RETRACTION NOTE:A MODIFIED EDGE-ORIENTED SPATIAL INTERPOLATION ALGORITHM FOR CONSECUTIVE BLOCKS ERROR CONCEALMENT

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Journal of Electronics(China) 2011年第Z1期 676-676页

作者： fu wei xing guangzhong(Department of Communication and Electronic Engineering,Yanshan University,Qinhuangdao 066004,China)

Retraction: fu wei and xing guangzhong. A Modified Edge-oriented Spatial Interpolation Algorithm forConsecutive Blocks Error Concealment. Journal of Electronics (China), 24(2), 214-217.

关键词： EDGE RETRACTION NOTE Edge

Efficient Decarboxylative/Defluorinative Alkylation for the Synthesis of gem-Difluoroalkenes through an SN2’-Type Route

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Chinese Journal of Chemistry 2022年第3期40卷 323-328页

作者： wei-Long xing Jia-Xin Wang Ming-Chen fu Yao fu Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Urban Pollutant ConversionAnhui Province Key Laboratory of Biomass Clean EnergyiChEMUniversity of Science and Technology of ChinaHefeiAnhui 230026China

An efficient decarboxylative/defluorinative alkylation for synthesizing gem-difluoroalkenes is described,providing a general method for installation of the challenging alkyl fragments containing a-electron-withdrawing groups into a-trifluoromethyl *** studies suggest that this process involves an SN2,-type synthetic route in the absence of transition-metal catalysts or ***,this protocol can easily be scaled up,and successfully applied to the modification of biologically active molecules,thus complementing methodologies that give access to structurally versatile gem-difluoroalkenes.

关键词： Decarboxylation!Defluorination Alkylation C-C coupling Carboxylic acids

Benefits of early ambulation within 24 h after total knee arthroplasty:a multicenter retrospective cohort study in China

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Military Medical Research 2021年第4期8卷 503-509页

作者： Yi-Ting Lei Jin-wei Xie Qiang Huang wei Huang fu-xing Pei Department of Orthopedics the First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Orthopedics West China HospitalSichuan UniversityChengdu 610041China

Background:Postoperative care has been evolving since the concept of enhanced recovery after surgery(ERAS)was introduced in *** study aimed to evaluate the effects of early ambulation within 24h after unilateral total knee arthroplasty(TKA)on postoperative rehabilitation and costs in a Chinese ***:This cohort study of patients with knee osteoarthritis who had undergone TKA at 24 large teaching hospitals between January 2014 and November 2016 involved 2687 patients who began ambulating within 24h(Group A)and 3761 patients who began ambulating later than 24h(Group B).The outcome measurements,such as length of stay(LOS),total hospitalization costs,dynamic pain level,knee flexion range of motion(ROM),results of the 12-Item Short Form Survey(SF-12),incidence of thromboembolic events and other complications,were recorded and ***:The early ambulation group(Group A)had a shorter LOS and lower hospitalization costs and pain levels than the late ambulation group(Group B).There was a favorable effect in enhancing ROM for patients in Group A compared with patients in Group *** Group A,patients had significantly higher postoperative SF-12 scores than those in Group *** incidence of deep venous thrombosis(DVT)and pulmonary infection was significantly lower in Group A than in Group *** incidence of pulmonary embolism(PE)and other complications did not differ between the two ***:Early ambulation within 24h after TKA was associated with reduced LOS,improved knee function,lower hospitalization costs and lower incidence of DVT and pulmonary infection in the Chinese population.

关键词： Total knee arthroplasty Early ambulation Length of stay Costs Deep venous thrombosis

Machine learning-based performance predictions for steels considering manufacturing process parameters:a review

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Journal of Iron and Steel Research International 2024年第7期31卷 1555-1581页

作者： wei Fang Jia-xin Huang Tie-xu Peng Yang Long fu-xing Yin Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300132China Institute of New Materials Guangdong Academy of ScienceGuangzhou 510651GuangdongChina

Steels are widely used as structural materials,making them essential for supporting our lives and ***,further improving the comprehensive properties of steel through traditional trial-and-error methods becomes challenging due to the continuous development and numerous processing parameters involved in steel *** address this challenge,the application of machine learning methods becomes crucial in establishing complex relationships between manufacturing processes and steel *** review begins with a general overview of machine learning methods and subsequently introduces various performance predictions in steel *** classification of performance pre-diction was used to assess the current application of machine learning model-assisted *** important issues,such as data source and characteristics,intermediate features,algorithm optimization,key feature analysis,and the role of environmental factors,were summarized and *** insights will be beneficial and enlightening to future research endeavors in this field.

关键词： Steel Manufacturing process Machine learning Performance prediction Algorithm

Targeted synthesis of novel porous aromatic frameworks with selective separation of CO_2/CH_4and CO_2/N_2

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Chinese Chemical Letters 2014年第11期25卷 1407-1410页

作者： wei Wang Ye Yuan fu-xing Sun Guang-Shan Zhu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University

Novel porous aromatic frameworks（PAF-53 and PAF-54） have been obtained by the polymerization of amino compound（p-phenylenediamine and melamine） and cyanuric chloride. They display a certain amount of CO2 adsorption capacity and highly selective separation of CO2/CH4 and CO2/N2 as 18.1 and83 by Henry Law respectively. They may be applied as ideal adsorbents to separate and capture CO2.

关键词： Porous aromatic framework Cyanuric chloride Selective separation CO 2 adsorption

Digital design of scaffold for mandibular defect repair based on tissue engineering

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第9期12卷 769-779页

作者： Yun-feng LIU fu-dong ZHU xing-tao DONG wei PENG Key Laboratory of E & M(Zhejiang University of Technology) Ministry of Education & Zhejiang ProvinceHangzhou 310032China Affiliated Stomatology Hospital School of MedicineZhejiang UniversityHangzhou 310006China

Mandibular defect occurs more frequently in recent years,and clinical repair operations via bone transplantation are difficult to be further improved due to some intrinsic *** engineering,which is a hot research field of biomedical engineering,provides a new direction for mandibular defect *** the basis and key part of tissue engineering,scaffolds have been widely and deeply studied in regards to the basic theory,as well as the principle of biomaterial,structure,design,and fabrication ***,little research is targeted at tissue regeneration for clinic repair *** mandibular bone has a special structure,rather than uniform and regular structure in existing studies,a methodology based on tissue engineering is proposed for mandibular defect repair in this *** steps regarding scaffold digital design,such as external shape design and internal microstructure design directly based on triangular meshes are discussed in *** analyzing the theoretical model and the measured data from the test parts fabricated by rapid prototyping,the feasibility and effectiveness of the proposed methodology are properly *** works about mechanical and biological improvements need to be done to promote its clinical application in future.

关键词： Digital design Mandibular defect Scaffold Tissue engineering

SnSe+Ag_2Se composite engineering with ball milling for enhanced thermoelectric performance

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Rare Metals 2018年第4期37卷 333-342页

作者： Dan Feng Yue-xing Chen Liang-wei fu Ju Li Jia-Qing He State Key Laboratory for Mechanical Behavior of Materials and Frontier Institute of Science and Technology Xi'an JiaotongUniversity Shenzhen Key Laboratory of Thermoelectric Materials Department of Physics South University of Science and Technology of China Key Laboratory of Artificial Micro-and Nano-Structures of Ministry of Education and School of Physics and Technology Wuhan University Department of Nuclear Science and Engineering and Department of Materials Science and Engineering Massachusetts Institute ofTechnology

Earth-abundant IV-VI semiconductor SnSe is regarded as a promising thermoelectric material due to its intrinsic low thermal conductivity. In this report, the highly textured SnSe/Ag2Se composites were first designed by solid solution method followed by spark plasma sintering （SPS） and their thermoelectric properties in two directions were investigated, and then, the performance of composites was further optimized with an additional ball milling. The coexistence of SnSe and Ag2Se phases is clearly confirmed by energy-dispersive X-ray spectroscopy （EDX） in transmission electron microscopy （TEM）. After ball milling, the size of SnSe grains as well as the incorporated Ag2Se particles reduces effectively, which synergistically optimizes the electrical and thermal transport properties at high temperature range. As a result, a maximum ZT of -0.74 at 773 K for SnSe ＋ 1.0%AgzSe in the direction vertical to the pressing direction is achieved. Composite engineering with additional ball milling is thus proved to be an efficient way to improve the thermoelectric properties of SnSe, and this strategy could be applicable to other thermoelectric systems.

关键词： Thermoelectrics SnSe Compositeengineering Ball milling