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Chinese Journal of Structural Chemistry 2005年第7期24卷 851-857,740页

作者： WANGZun-Yao hanxiang-Yun WANGLian-Sheng SchooloftheEnvironment NanjingUniversityJiangsu210093China／／SchoolofChemicalandBiologicalEngineeringYanchengInstituteofTechnologyJiangsu224003China SchooloftheEnvironment NanjingUniversityJiangsu210093China SchoolofChemicalandBiologicalEngineering YanchengInstituteofTechnologyJiangsu224003China

Twenty eight alkyl(1-phenylsulfonyl) cycloalkane carboxylates were computed at the B3LYP/6-31G* level. Based on linear solvation energy theory, two quantitative correlation equations of the molecular structures of alkyl(1-phenylsulfonyl) cycloalkane carboxylate com- pounds to their chromatographic retention (capacity factor lgKW) and the toxicity for photo- bacterium phosphoreum (–lgEC50) were developed by using the molecular structural parameters as theoretical descriptors (r2 = 0.9501, 0.9488). The two quantitative correlation equations were consequently cross validated by leave-one-out (LOO) validation method with q2 of 0.9113 and 0.9281, respectively. The result showed that the two equations achieved in this work by B3LYP/6-31G* are both more advantageous than those from AM1, and can be used to predict the lgKW and –lgEC50 of congeneric organics.

关键词： chromatographic retention acute toxicity photobacterium density functional theory method linear solvation energy theory quantitative structure-property relationship (QSPR) quantitative structure-activity relationships (QSAR)

In-situ additive manufacturing of high strength yet ductility titanium composites with gradient layered structure using N_(2)

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International Journal of Extreme Manufacturing 2024年第3期6卷 387-409页

作者： Yunmian Xiao Changhui Song Zibin Liu Linqing Liu hanxiang Zhou Di Wang Yongqiang Yang School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou 510641People’s Republic of China

It has always been challenging work to reconcile the contradiction between the strength and plasticity of titanium *** powder bed fusion(LPBF) is a convenient method to fabricate innovative composites including those inspired by gradient layered *** this work,we used LPBF to selectively prepare Ti N/Ti gradient layered structure(GLSTi)composites by using different N_(2)–Ar ratios during the LPBF *** systematically investigated the mechanisms of in-situ synthesis Ti N,high strength and ductility of GLSTi composites using microscopic analysis,TEM characterization,and tensile testing with digital image ***,a digital correspondence was established between the N_(2) concentration and the volume fraction of LPBF in-situ synthesized Ti *** results show that the GLSTi composites exhibit superior mechanical properties compared to pure titanium fabricated by LPBF under pure ***,the tensile strength of GLSTi was more than 1.5times higher than that of LPBF-formed pure titanium,reaching up to 1100 MPa,while maintaining a high elongation at fracture of 17%.GLSTi breaks the bottleneck of high strength but low ductility exhibited by conventional nanoceramic particle-strengthened titanium matrix composites,and the hetero-deformation induced strengthening effect formed by the Ti N/Ti layered structure explained its strength-plasticity balanced *** microhardness exhibits a jagged variation of the relatively low hardness of 245 HV0.2 for the pure titanium layer and a high hardness of 408 HV0.2 for the N_(2) in-situ synthesis *** study provides a new concept for the structure-performance digital customization of 3D-printed Ti-based composites.

关键词： laser powder bed fusion layered structure composites in-situ synthesis TiN strength-plasticity synergy

Approximating interior bounded box of 3D character mesh model based on its skeleton and symmetry

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International Journal of Intelligent Computing and Cybernetics 2017年第3期10卷 332-347页

作者： hanxiang Xu Shihui Guo Junfeng Yao Nadia Magnenat Thalmann School of Software Xiamen UniversityXiamenChina Institute for Media Innovation Nanyang Technological UniversitySingapore

Purpose – In the process of robot shell design, it is necessary to match the shape of the input 3D originalcharacter mesh model and robot endoskeleton, in order to make the input model fit for robot and avoidcollision. So, the purpose of this paper is to find an object of reference, which can be used for the process ofshape ***/methodology/approach – In this work, the authors propose an interior bounded box (IBB)approach that derives from oriented bounding box (OBB). This kind of box is inside the closed mesh *** the same time, it has maximum volume which is aligned with the object axis but is enclosed by all the meshvertices. Based on the IBB of input mesh model and the OBB of robot endoskeleton, the authors can completethe process of shape matching. In this paper, the authors use an evolutionary algorithm, covariance matrixadaptation evolution strategy (CMA-ES), to approximate the IBB based on skeleton and symmetry of inputcharacter mesh *** – Based on the evolutionary algorithm CMA-ES, the optimal position and scale informationof IBB can be found. The authors can obtain satisfactory IBB result after this optimization *** output IBB has maximum volume and is enveloped by the input character mesh model as ***/value – To the best knowledge of the authors, the IBB is first proposed and used in the field ofrobot shell design. Taking advantage of the IBB, people can quickly obtain a shell model that fit for *** the same time, it can avoid collision between shell model and the robot endoskeleton.

关键词： 3D original characters mesh model CMA-ES Interior bounded box Shape matching

Number, distribution, and predicted needed number of general practitioners in China

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Family Medicine and Community Health 2018年第3期6卷 154-159页

作者： Baoling Wu hanxiang Gong Zhenni Luo School of Health Services Management Guangzhou Medical UniversityGuangzhou 511436China

Family Medicine and Community Health 2018;6(3):154–159154 *** DOI 10.15212/FMCH.2018.0120.2018 Family Medicine and Community *** Commons Attribution-NonCommercial 4.0 International License CHINA FOCUS CHINA FOCUS Number,distribution,and predicted needed number of general practitioners in China*Baoling Wu1,hanxiang Gong1,Zhenni Luo1 Abstract Objective:We aimed to investigate the number and distribution of general practitioners(GPs)in China,and to predict the number of GPs needed in the ***:From China Health Statistics Yearbook 2014,China Health Statistics Yearbook 2016 and China Statistical Yearbook 2016,we obtained the number of GPs and the populations in China and each of its regions from 2012 to *** SPSS Statistics version 22.0 was used to conduct descriptive statistical *** model GM(1,1)and the manpower-to-population ratio method were used to predict the number of GPs needed in China from 2016 to ***:The total number of GPs in China was 109,794 in 2012,145,511 in 2013,172,597 in 2014,and 188,649 in *** number increased by 78,855 from 2012 to 2015,and the average annual growth rate was 19.77%.By the end of 2015,of the GPs in all of China and in eastern,central,and western China,those who had achieved a GP qualification certificate following training accounted for 63.76%(120,285/188,649),60.06%(62,474/104,015),65.20%(29,565/45,344),and 71.89%(28,246/39,290),respectively,of the *** number of GPs per 10,000 population in all of China and in eastern,central,and western China was 1.37,1.83,1.05,and 1.06,respectively,and the number of GPs needed for all of China and the eastern,central,and western parts would be 86,275,9787,40,764,and 34,976,respectively,calculated on the basis of the standard of two GPs per 10,000 *** model GM(1,1)predicted that,in accordance with the natural growth trend of GPs,the number of GPs in China would be 220,314 in 2016,253,728 in 2017,293,101 in 2018,339,9

关键词： General practitioners number distribution forecast

Self-Powered Intelligent Human-Machine Interaction for Handwriting Recognition

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Research 2021年第1期2021卷 226-234页

作者： Hang Guo Ji Wan Haobin Wang hanxiang Wu Chen Xu Liming Miao Mengdi Han Haixia Zhang National Key Laboratory of Science and Technology on Micro/Nano Fabrication Peking UniversityBeijing 100871China Academy for Advanced Interdisciplinary Studies Peking UniversityBeijing 100871China

Handwritten signatures widely exist in our daily *** main challenge of signal recognition on handwriting is in the development of approaches to obtain information *** mechanical signals can be easily detected by triboelectric nanogenerators which can provide immediate opportunities for building new types of active sensors capable of recording handwritten *** this work,we report an intelligent human-machine interaction interface based on a triboelectric *** the horizontal-vertical symmetrical electrode array,the handwritten triboelectric signal can be recorded without external energy *** with supervised machine learning methods,it can successfully recognize handwritten English letters,Chinese characters,and Arabic *** principal component analysis algorithm preprocesses the triboelectric signal data to reduce the complexity of the neural network in the machine learning ***,it can realize the anticounterfeiting recognition of writing habits by controlling the samples input to the neural *** results show that the intelligent human-computer interaction interface has broad application prospects in signature security and humancomputer interaction.

关键词： signature writing recording

Enhancement of the Photocatalytic Oxygen Production by Tantalum Nitride Supported Fe Atom Embedded N-Doped Graphene Oxide

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Chinese Journal of Chemistry 2023年第3期41卷 280-286页

作者： hanxiang Chen Jia Yan Zhao Mo Jinyuan Liu Xianglin Zhu Huaming Li Hui Xu School of the Environment and Safety Engineering School of the Institute for Energy Researchand School of the Materials Science&EngineeringJiangsu UniversityZhenjiangJiangsu212013 China

Energy crises and environmental pollution have become urgent problems with human civilization *** technology is a green method to deal with these *** key to improve photocatalytic efficiency lies in the effective separation of photogenerated electron-hole *** this work,we designed the Fe atom embedded N-doped graphene oxide(Fe-NGO)supporting on tantalum nitride(Ta_(3)N_(5))catalyst,which was employed to improve the photocatalytic oxygen production *** oxygen production of 5 wt%Fe atom embedded N-doped graphene oxide supporting on tantalum nitride(Fe-NGO/Ta_(3)N_(5))was 184.7μmol·g^(-1),about 3.5 times higher than that of the pure Ta_(3)N_(5).The introduction of the cocatalyst Fe-NGO acting as an electron conductor in the Fe-NGO/Ta_(3)N_(5) accelerates the carrier migration of Ta_(3)N_(5) and further enhances the photocatalytic oxygen production activity.N-doping increases the conductivity of graphene oxide(GO),and Fe atoms are used as the reactive sites to promote the combination of electron and sacrificial agent in the *** work may provide insights into the research of new carbon.

关键词： Photocatalysis Electron transfer Fe atom embedded N-doped graphene oxide Ta_(3)N_(5) Catalysis

Analysis of 100 consecutive cases of resectable pancreatic neuroendocrine neoplasms： clinicopathological characteristics and long-term outcomes

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Frontiers of Medicine 2016年第4期10卷 444-450页

作者： Yugang Cheng hanxiang Zhan Lei Wang Jianwei Xu Guangyong Zhang Zongli Zhang Sanyuan Hu Department of General Surgery Qilu Hospital of Shandong University Jinan 250012 China

The incidence rate of pancreatic neuroendocrine neoplasms （pNENs） has increased rapidly in recent years. However, the clinicopathological characteristics of pNENs are poorly understood. Medical records of patients who underwent surgery and were confirmed as pNENs by pathological examination from January 2003 to February 2015 in Qilu Hospital were reviewed retrospectively. A total of 100 patients, 36 males and 64 females, were included with a mean operation age of 46.26 ± 13.41 years. Among the 100 cases, 76 had insulinomas and 24 had non-functional pNENs. Tumor size ranged from 0.5 cm to 9 cm, and the mean size was 2.20 ± 1.40 cm. The percentages of TNM stages I, II, III, and IV tumors were 89.0%, 8.0%, 0.0%, and 3.0%, respectively. Based on the WHO classification, pNENs were classified into three grades： G1, G2, and G3. G1, G2, and G3 tumors were confirmed in 72.9%, 23.7%, and 3.4% patients, respectively. The positive rates of CgA and Syn immunohisto- chemical staining were 94.5% （69/73） and 100% （74/74）, respectively. Compared with insulinoma, non-functional pNENs have larger tumor sizes, more advanced TNM staging, a higher Ki-67 index, and a higher rate of liver metastasis （P 〈 0.05）. In conclusion, pNENs are heterogeneous tumors with varying clinical manifestations, diverse tumor biological characteristics, and different prognoses. Non-functional pNENs present a more aggressive behavioral model and have poorer prognosis than functional pNENs.

关键词： pancreatic neuroendocrine neoplasms clinicopathological characteristic Ki-67 liver metastasis outcomes

A synergistic experimental and computational study on CO2 corrosion of X65 carbon steel under dispersed droplets within oil/water mixtures

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Corrosion Communications 2023年第4期12卷 64-75页

作者： Wenlong Ma hanxiang Wang Hongda Guo Long Cai Xin Li Yong Hua Key Laboratory of Marine Environmental Corrosion and Bio-Fouling Institute of Oceanology Chinese Academy of Sciences School of Mechanical and Electrical Engineering China University of Petroleum(East China) Corrosion and Integrity Centre Zhejiang JIULI Hi-Tech Metals Co.Ltd Qingdao Sifang Kawasaki Rollingstock Technology Co. Ltd

The CO2corrosion behaviour of X65 carbon steel under water-in-oil droplet and oil-in-water droplet was systematically investigated by a combination of scanning electron microscopy, Raman spectroscopy, NPFLex3D and COMSOL simulation. Under the water-in-oil droplet, the formation of crystalline FeCO3can be contributed to the high concentration of Fe2+and CO32-, and the short diffusion path near the droplet edge promotes FeCO3precipitation. Under the oil-in-water droplet, corrosion islands caused by the invasion of water can be found,indicating that the small water droplets emphasised the development of localized corrosion underneath the oil droplet.

关键词： Carbon steel CO 2 corrosion Dispersed droplet Oil/water flow COMSOL

Shallow Genetic Structure of Pholis fangi in Bohai Sea and Yellow Sea Inferred from mt DNA Control Region

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Journal of Ocean University of China 2019年第4期18卷 947-952页

作者： GAO Tianxiang LI Lin FANG Rundong LIU Guanghui WANG Lei XU hanxiang SONG Na Fishery College Zhejiang Ocean University Zhoushan 316022 China Key Laboratory for Technology Research on Sustainable Utilization of Marine Fishery Resources Zhoushan 316022 China Marine Science and Engineering College Qingdao Agricultural University Qingdao 266109 China The Key Laboratory of Mariculture Ministry of Education Ocean University of China Qingdao 266003 China Oceans and Fisheries Bureau of Dongying District Dongying 257091 China

Pholis fangi is an ecologically important fish species inhabiting Chinese coastal waters of Yellow Sea and Bohai Sea. To investigate the genetic diversity and population genetic structure of P. fangi, a fragment of 487 bp in the first hypervariable region (HVR-1) of the mitochondrial DNA (mtDNA) control region was sequenced for 181 individuals collected from Bohai Sea and Yel- low Sea. A total of 18 polymorphic sites were detected, which defined 25 haplotypes. A moderate level of haplotype diversity (h = 0.7052) and a low level of nucleotide diversity (π= 0.0028) were detected. Both the phylogenetic tree and the haplotype network showed no significant genealogical structure difference among sampling locations. Pairwise FST comparison and hierarchical mo- lecular variance analysis (AMOVA) revealed that no significant genetic structure difference existed throughout the investigated re- gions, suggesting a high gene exchange among different populations. The results of neutrality test and mismatch distribution analysis indicated that a late Pleistocene population expansion (38000 127000 years ago) happened. Seasonal schooling migration may con- tribute to the genetically homogeneous population structure of the species.

关键词： Pholis fangi control region of mtDNA genetic diversity genetic structure demographic history

A Method Based on Knowledge Distillation for Fish School Stress State Recognition in Intensive Aquaculture

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Computer Modeling in Engineering & Sciences 2022年第6期131卷 1315-1335页

作者： Siyuan Mei Yingyi Chen hanxiang Qin Huihui Yu Daoliang Li Boyang Sun Ling Yang Yeqi Liu College of Information and Electrical Engineering China Agricultural UniversityBeijing100083China National Innovation Center for Digital Fishery China Agricultural UniversityBeijing100083China School of Information Science and Technology Beijing Forestry UniversityBeijing100083China

Fish behavior analysis for recognizing stress is very important for fish welfare and production management in *** advances have been made in fish behavior analysis based on deep ***,most existing methods with top performance rely on considerable memory and computational resources,which is impractical in the real-world *** order to overcome the limitations of these methods,a new method based on knowledge distillation is proposed to identify the stress states of fish *** knowledge distillation architecture transfers additional inter-class information via a mixed relative loss function,and it forces a lightweight network(GhostNet)to mimic the soft probabilities output of a well-trained fish stress state recognition network(ResNeXt101).The fish school stress state recognition model’s accuracy is improved from 94.17%to 98.12%benefiting from the *** proposed model has about 5.18 M parameters and requires 0.15 G FLOPs(floating-point operations)to process an image of size 224×***,fish behavior images are collected in a land-based factory,and a dataset is constructed and extended through flip,rotation,and color jitter augmentation *** proposed method is also compared with other state-of-the-art *** experimental results show that the proposed model is more suitable for deployment on resource-constrained devices or real-time applications,and it is conducive for real-time monitoring of fish behavior.

关键词： Fish behavior deep learning knowledge distillation aquaculture