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Gradient Gene Algorithm: a Fast Optimization Method to MST Problem

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 535-540页

作者： zhang jin bo, xu jing wen, li yuan xiang state key laboratory of software engineering, wuhan university, wuhan 43.072, china state key laboratory of software engineering Wuhan University Wuhan China

The extension of Minimum Spanning Tree(MST) problem is an NP hard problem which does not exit a polynomial time algorithm. In this paper, a fast optimization method on MST problem——the Gradient Gene Algorithm is introduced. Compared with other evolutionary algorithms on MST problem, it is more advanced: firstly, very simple and easy to realize; then, efficient and accurate; finally general on other combination optimization problems.

关键词： combination optimization minimum spanning tree problem extension of minimum spanning tree problem gradient gene algorithm

An Inversion Evolutionary Algorithm on How to Convert FDP to TSP

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wuhan university Journal of Natural Sciences 2001年第Z1期6卷 589-592页

作者： xu jing wen, zhang jin bo, li yuan xiang state key laboratory of software engineering,wuhan university, wuhan 43.072, china state key laboratory of software engineering Wuhan University Wuhan China

The Film Copy Deliverer Problem (FDP),much more difficult than TSP,is a new problem in the combination optimization. In this paper,a new algorithm is introduced. First,the FDP is converted to TSP. Then an evolutionary algorithm based on inversion operator is adopted. Compared with other Genetic Algorithms,it is not only more simple and easier to realize but also faster and more accurate.

关键词： film copy deliverer problem (FDP) traveling salesman problem (TSP) evolutionary algorithm inversion operation

One-step hydrothermal synthesis of few-layered metallic phase MoS2 for high-performance supercapacitors

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Progress in Natural Science:Materials International 2024年第2期34卷 429-436页

作者： jing xu xulong yuan Yujie Zhao Shaoqi Rui Qingling Jia Han li Shun Lu Bing li Yongxing zhang xuebin Zhu Anhui Province key laboratory of Pollutant Sensitive Materials and Environmental Remediation Anhui Province Key Laboratory of Intelligent Computing and Applications Anhui Province Industrial Generic Technology Research Center for Alumics Materials Huaibei Normal University Chongqing Institute of Green and Intelligent Technology Chinese Academy of Sciences key laboratory of Materials Physics Institute of Solid State Physics HFIPS Chinese Academy of Sciences

In recent years,molybdenum disulfide（MoS2） has gained significant attention in the scientific *** MoS2demonstrates unique properties and potential ***,the synthesis of few-layered and high-purity 1T-MoS2is still a *** this study,we successfully employed a hydrothermal method to synthesize few-layered and high-purity *** purity of the material is controlled by a combination of sodium borohydride and ***,the few-layered 1T-MoS2exhibits exceptional performance as a supercapacitor,including the high specific capacitance(250.3 F g-1at a current density of 1 A g-1) and excellent long-trem cycling stability（90.7 % after 5000 cycles）.Meanwhile,the asymmetric device assembled by 6-FL-1TMoS2and active carbon on carbon cloths exhibits excellent flexibility and high energy and power density(23.1μWh cm-2at 600 μW cm-2,55 μWh cm-2at 12000 μW cm-2).This work provides valuable insights into the synthesis of few-layered and high-purity 1T-MoS2,opening up new avenues for further research and applications.

关键词： High-purity Few-layered 1T-MoS2 One-pot hydrothermal method Supercapacitor

bolstering the Mechanical Robustness of Supramolecular Polymer Network by Mechanical bond

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Chinese Journal of Polymer Science 2024年第10期42卷 1536-1544,I0012页

作者： yuan-Hao Wang jing-Xi Deng Jun Zhao Yi Ding li Yang Zhao-Ming zhang xu-Zhou Yan School of Chemistry and Chemical engineering Shanghai Jiao Tong UniversityShanghai200240China Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong UniversityShanghai200240China

Supramolecular polymer networks(SPNs)are celebrated for their dynamic nature,yet they often exhibit inadequate mechanical *** far,the quest to bolster the mechanical resilience of SPNs while preserving their dynamic character presents a formidable ***,we introduce[2]rotaxane into SPN to serve as another cross-link,which could effectively enhance the mechanical robustness of the polymer network without losing the dynamic *** with SPN,the dually cross-linked network(DPN)demonstrates superior breaking strength,Young’s modulus,puncture force and toughness,underscoring its superior ***,the cyclic tensile tests reveal that the energy dissipation capacity of DPN rivals,and in some cases surpasses,that of SPN,owing to the efficient energy dissipation pathway facilitated by[2]*** addition,benefiting from stable topological structure of[2]rotaxane,DPN exhibits accelerated recovery from deformation,indicating superior elasticity compared to *** strategy elevates the performance of SPNs across multiple metrics,presenting a promising avenue for the development of high-performance dynamic materials.

关键词： Rotaxane cross-links Dually cross-linked network Supramolecular polymer network Host-guest recognition Dynamic materials

Cell Evolutionary Algorithm: a New Optimization Method on Ground-state Energy of the Atomic

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wuhan university Journal of Natural Sciences 2000年第4期5卷 425-430页

作者： liu lian-jun, xu jing-wen, Mao You-dong, li yuan-xiang Department of Physics, wuhan university, wuhan 43.072,china state key laboratory of software engineering,wuhan university, wuhan 43.072, china wuhan university Department of Physics Wuhan China (GRID:grid.49470.3e) (ISNI:***) wuhan university State Key Laboratory of Software Engineering Wuhan China (GRID:grid.49470.3e) (ISNI:***)

The purpose of this paper is to present a new general approach to solve ground-state energies of the double-electron systems in a uniform magnetic field, in which the basic element of evolution is the set in the solution space, rather than the point. The paper defines the Cell Evolutionary Algorithm, which implements such a view of the evolution mechanism. First, the optimal set in which the optimal solution may be obtained. Then this approach applies the embedded search method to get the optimal solution. We tested this approach on the atomic structure, and the results show that it can improve not only the efficiency but also the accuracy of the calculations as it relates to this specific problem.

关键词： key words double electron systems ground state energy variational principle cell evolutionary algorithm evolutionary algorithm

The Chinese Society of Clinical Oncology (CSCO): Clinical guidelines for the diagnosis and treatment of gastric cancer, 2023

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Cancer Communications 2024年第1期44卷 127-172页

作者： Feng-Hua Wang Xiao-Tian zhang Lei Tang Qi Wu Mu-Yan Cai yuan-Fang li Xiu-Juan Qu Hong Qiu Yu-jing zhang Jie-Er Ying Jun zhang ling-Yu Sun Rong-bo lin Chang Wang Hao liu Miao-Zhen Qiu wen-Long Guan Sheng-xiang Rao Jia-Fu Ji Yan Xin Wei-Qi Sheng Hui-Mian xu Zhi-Wei Zhou Ai-Ping Zhou jing jin xiang-lin yuan Feng Bi Tian-Shu liu Han liang Yan-Qiao zhang Guo-Xin li Jun liang Bao-Rui liu lin Shen jin li Rui-Hua xu Department of Medical Oncology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer HospitalBeijingP.R.China Department of Radiology Peking University Cancer HospitalBeijingP.R.China Department of Endoscopy Center Peking University Cancer HospitalBeijingP.R.China Department of Pathology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center of Cancer MedicineGuangzhouGuangdongP.R.China Department of Gastric Surgery Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Medical Oncology The First Hospital of China Medical UniversityShenyangLiaoningP.R.China Department of Medical Oncology Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and TechnologyWuhanHubeiP.R.China Department of Radiotherapy Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Medical Oncology Zhejiang Cancer HospitalHangzhouZhejiangP.R.China Department of Medical Oncology Ruijin HospitalShanghai Jiaotong University School of MedicineShanghaiP.R.China Department of Surgical Oncology The Fourth Affiliated Hospital of Harbin Medical UniversityHarbinHeilongjiangP.R.China Department of Medical Oncology Fujian Cancer HospitalFuzhouFujianP.R.China Tumor Center The First Hospital of Jilin UniversityChangchunJilinP.R.China Department of General Surgery Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdongP.R.China Department of Radiology Zhongshan HospitalFudan UniversityShanghaiP.R.China Department of

The 2023 update of the Chinese Society of Clinical Oncology(CSCO)Clini-cal Guidelines for Gastric Cancer focuses on standardizing cancer diagnosis and treatment in china,reflecting the latest advancements in evidence-based medicine,healthcare resource availability,and precision *** updates address the differences in epidemiological characteristics,clinicopatho-logical features,tumor biology,treatment patterns,and drug selections between Eastern and Western gastric cancer *** revisions include a structured template for imaging diagnosis reports,updated standards for molecular marker testing in pathological diagnosis,and an elevated recommendation for neoadju-vant chemotherapy in stage III gastric *** advanced metastatic gastric cancer,the guidelines introduce new recommendations for immunotherapy,anti-angiogenic therapy and targeted drugs,along with updated management strategies for human epidermal growth factor receptor 2(HER2)-positive and deficient DNA mismatch repair(dMMR)/microsatellite instability-high(MSI-H)***,the guidelines offer detailed screening recommendations for hereditary gastric cancer and an appendix listing drug treatment regimens for various stages of gastric *** 2023 CSCO Clinical Guidelines for Gastric Cancer updates are based on both Chinese and international clinical research and expert consensus to enhance their applicability and relevance in clinical practice,particularly in the heterogeneous healthcare landscape of china,while maintaining a commitment to scientific rigor,impartiality,and timely revisions.

关键词： Chinese Society of Clinical Oncology(CSCO) gastric cancer diagnosis surgery neoadjuvant adjuvant radiotherapy chemotherapy targeted therapy immunotherapy

Towards the insights into the deactivation behavior of acetylene hydrogenation catalyst

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Petroleum Science 2024年第2期21卷 1405-1414页

作者： Hai-Xia Su Yang Jiao Jian-Gong Shi Zhi-Wei yuan Di zhang xu-Peng Wang jing Ren Dan liu Jian-Zhou Gui Hai-Yang Gao Xiao-li xu state key laboratory of Separation Membranes&Membrane Processes Tianjin Key Laboratory of Green Chemical Technology and Process EngineeringSchool of Material Science and EngineeringTiangong UniversityTianjin300387China Institute of engineering Technology Sinopec Catalyst Co.LtdBeijing101100China state key laboratory of Separation Membranes and Membrane Processes Tianjin Key Laboratory of Green Chemical Technology and Process EngineeringSchool of ChemistryTiangong UniversityTianjin300387China

A series of model catalysts were obtained by treating commercial fresh and spent catalysts unloaded from the factory with different methods, including green oil dipping, extraction and high-temperature regeneration;finally, the deactivation behavior of the commercial catalyst for acetylene hydrogenation were studied. The influence of various possible deactivation factors on the catalytic performance was elucidated via detailed structural characterization, surface composition analysis, and activity *** results showed that green oil, carbon deposit and sintering of active metal were the main reasons for deactivation, among which green oil and carbon deposit led to rapid deactivation, while the activity could be recovered after regeneration by high-temperature calcination. The sintering of active metal components was attributed to the high-temperature regeneration in hydrothermal conditions, which was slow but irreversible and accounted for permanent deactivation. Thus, optimizing the regeneration is expected to extend the service life of the commercial catalyst.

关键词： Acetylene Hydrogenation Green oil Carbon deposit Sintering Catalyst deactivation

The In-Flight Realtime Trigger and Localization software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： Xiao-Yun Zhao Shao-lin Xiong xiang-Yang wen Xin-Qiao li Ce Cai Shuo Xiao Qi Luo wen-Xi Peng Dong-Ya Guo Zheng-Hua An Ke Gong jin-yuan liao Yan-Qiu zhang Yue Huang Lu li Xing wen Fei zhang jing Duan Chen-Wei Wang Dong-li Shi Peng zhang Qi-Bin Yi Chao-Yang li Yan-Bing xu Xiao-Hua liang Ya-Qing liu Da-li zhang Xi-Lei Sun Fan zhang Gang Chen Huan-Yu Wang Sheng Yang Xiao-jing liu Min Gao Mao-Shun li jin-Zhou Wang Xing Zhou Yi Zhao Wang-Chen xue Chao Zheng Jia-Cong liu Xing-bo Han jin-ling Qi Jia Huang Ke-Ke zhang Can Chen Xiong-Tao Yang Dong-Jie Hou Yu-Sa Wang Rui Qiao xiang Ma Xiao-bo li Ping Wang Xin-Ying Song li-Ming Song Shi-Jie Zheng Bing li Hong-Mei zhang Yue Zhu Wei Chen Jian-Jian He Zhen zhang jin Hou Hong-Jun Wang Yan-Chao Hao xiang-Yu Wang Zong-yuan Yang Zhi-Long wen Zhi Chang yuan-yuan Du Rui Gao Xiao-Fei Lan Yan-Guo li Gang li xu-Fang li Fang-Jun Lu Hong Lu Bin Meng Feng Shi Hui Wang Hui-Zhen Wang Yu-Peng xu Jia-Wei Yang xue-Juan Yang Shuang-Nan zhang Chao-Yue zhang Cheng-Mo zhang Zhi-Cheng Tang Cheng Cheng key laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China School of Information Science and Technology Southwest Jiaotong UniversityChengdu 611756China key laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Physics and Space Science College China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China Changchun university of Science and Technology Changchun 130022China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2020 December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

Simultaneous detection of 22 mycotoxins in grape by QuEChERS and ultra-high-performance liquid chromatography coupled with quadrupole/orbitrap high-resolution mass spectrometry

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Journal of Future Foods 2024年第4期4卷 369-375页

作者： Meirong Cao jing Wang Mengtian Wang Xiaoxuan yuan xu zhang Junzhan Ma Yan zhang Qiang li Hebei Food Safety key laboratory Key Laboratory of Special Food Supervision Technology for State Market RegulationHebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuang 050227China Hebei key laboratory of Forensic Medicine College of Forensic MedicineHebei Medical UniversityShijiazhuang 050017China

To effectively assess the extent of the mycotoxin contamination of grapes,a method was developed to analyze 22 mycotoxins by ultra-high-performance liquid chromatography coupled with quadrupole/orbitrap high-resolution mass spectrometry(UPLC-Q-Orbitrap HRMS).Samples were extracted and purified using the QuEChERS(quick,easy,cheap,effective,rugged,and safe)*** extracts were separated on a BEH Shield C18 column(100 mm×2.1 mm,1.7μm),using methanol and water with 0.1%formic acid solution and 2 mmol/L ammonium acetate as the mobile *** quantification was performed according to a matrix-matched external standard *** was a good linear relationship within the respective mass concentration ranges of 22 mycotoxins;the correlation coefficients were not less than *** limit of quantification was 0.3-10.0μg/*** recovery ranged from 68.6%to 109.0%,with a relative standard deviation of 1.28%-12.80%.The method is simple,rapid,highly sensitive,and accurate,making it useful for screening grapes for common and emerging mycotoxins.

关键词： Mycotoxins Ultra-high-performance liquid chromatography-quadrupole/orbitrap high-resolution mass spectrometry Grape