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Improved Pattern Clustering Algorithm for Recognizing Transversal Distribution of Steel Strip Thickness

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Journal of Iron and Steel Research International 2009年第5期16卷 50-55页

作者： TANG Cheng-long WANG Shi-gang LIANG qin-hua xu wei School of Mechanical and Dynamical Engineering Shanghai Jiao Tong University Shanghai 200240 China

Transversal distribution of the steel strip thickness in the entry section of the cold rolling mill seriously affects to the flatness and transversal thickness precision of the final products. Pattern clustering method is introduced into the steel rolling field and used in the patterns recognition of transversal distribution of the steel strip thickness. The well-known k-means clustering algorithm has the advantage of being easily completed, but still has some drawbacks. An improved k-means clustering algorithm is presented, and the main improvements include：（1） the initial clustering points are preselected according to the density queue of data objects; and （2） Mahalanobis distance is applied instead of Euclidean distance in the actual application. Compared to the patterns obtained from the common kmeans algorithm, the patterns identified by the improved algorithm show that the improved clustering algorithm is well suitable for the patterns＇ recognition of transversal distribution of steel strip thickness and it will be useful in online quality control system.

关键词： transversal thickness distribution pattern recognition improved k-means algorithm density queue

FAT10 level in human gastric cancer and its relation with mutant p53 level,lymph node metastasis and TNM staging

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World Journal of Gastroenterology 2009年第18期15卷 2228-2233页

作者： Feng Ji Xi Jin Chun-Hua Jiao qin-wei xu Zi-wei Wang Yue-Liang Chen Department of Digestive Diseases First Affiliated Hospital of Zhejiang University Medical SchoolHangzhou 310003 Zhejiang Province China

AIM:To investigate the role of FAT10 and mutant p53 in the pathogenesis,severity and prognosis of gastric ***:FAT10,mutant p53 mRNA and protein levels were measured by reverse transcription(RT)-PCR and immunohistochemistry in gastric cancer tissue(n = 62),tumoradjacent tissue(n = 62) and normal gastric tissue(n = 62).Relation of FAT10 and mutant p53 expression with clinicopathological features and clinical outcomes of gastric cancer patients were ***:The FAT10,mutant p53 mRNA and protein levels were signif icantly higher in gastric cancer than in its adjacent and normal *** FAT10 and mutant p53 levels in gastric cancer tissue were significantly correlated with lymph node metastasis and tumor,nodes,metastasis(TNM) ***,the high FAT10 level was associated with the overall survival rate of *** Cox-proportional hazards model analysis showed that mRNA and protein levels of FAT10 and mutant p53,lymph node metastasis,distant metastasis and TNM stage were the independent prognostic factors for gastric ***:FAT10 may be involved in gastric carcinogenesis,and is a potential marker for the prognosis of gastric cancer ***10 and mutant p53 may play a common role in the carcinogenesis of gastric cancer.

关键词： Gastric cancer FAT10 Mutant p53 Prognosis

TACC diagnosed by transoesophageal endoscopic ultrasonography:A case report

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World Journal of Clinical Cases 2023年第16期11卷 3847-3851页

作者： Xiao-Xin Pu qin-wei xu Bao-Yi Liu Department of Respiratory and Critical Care Medicine Qilu HospitalCheeloo College MedicineShandong UniversityQingdao 266035Shandong ProvinceChina

BACKGROUND Primary adenoid cystic carcinoma in the trachea(TACC)is a rare *** bronchoscopy is always chosen as a routine approach to obtain a pathological diagnosis,but it can be associated with an increased risk of *** SUMMARY We describe a case of TACC in a patient evaluated by chest computed tomography(CT)with three-dimensional reconstruction imaging and diagnosed by transoesophageal endoscopic *** pathological diagnosis confirmed tracheal adenoid cystic *** We highlight the importance of CT and provide a successful exploration of transoesophageal biopsy as a safe alternative approach.

关键词： Adenoid cystic carcinoma Tracheal obstruction Transoesophageal endoscopic ultrasonography Three-dimensional computed tomography reconstruction Case report

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面向干扰事件的可靠物流系统设计研究进展

控制与决策 2010年第2期25卷 161-165页

作者：秦绪伟唐立新东北大学工商管理学院沈阳110004 东北大学信息科学与工程学院沈阳110004

面对近年来频繁发生的干扰事件风险环境,可靠物流系统设计方法研究逐渐成为供应链风险管理研究领域的新热点.以设计问题类型、干扰事件表达形式、决策者应对风险态度、物流系统结构特征等分类指标,对现有可靠物流系统设计的定量研究成... 详细信息

面对近年来频繁发生的干扰事件风险环境,可靠物流系统设计方法研究逐渐成为供应链风险管理研究领域的新热点.以设计问题类型、干扰事件表达形式、决策者应对风险态度、物流系统结构特征等分类指标,对现有可靠物流系统设计的定量研究成果进行归纳总结,从中梳理出几个值得关注的问题.

关键词：物流系统设计干扰事件可靠性

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自动化立体库在银行业的应用

物流技术 2012年第12期31卷 436-437,450页

作者：秦绪伟中国人民银行营业管理部北京100800

论述了银行业金库业务的主要特点和自动化立体库应用于银行金库的可行性和优越性,并结合银行金库作业流程,对自动化立体库的应用关键问题进行了详细探讨,最后对自动化立体库在银行业金库的应用前景进行了展望。

关键词：银行金库自动化立体库 AGV码垛机

Applications of in-situ solid-state nuclear magnetic resonance in methanol to olefins reaction

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Science China Chemistry 2025年第1期68卷 134-151页

作者： Jing Niu Shutao xu Yingxu wei Zhongmin Liu National Engineering Research Center of Lower-Carbon Catalysis Technology Dalian Institute of Chemical PhysicsChinese Academy of Sciences State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

The methanol-to-olefins（MTO） reaction offers an alternative pathway for the production of low-carbon olefins from non-oil feedstocks. Fundamental research has been impeded by a lack of comprehensive understanding of its underlying mechanism,despite the significant progress made in industry. In-situ solid-state nuclear magnetic resonance（ss NMR） spectroscopy has emerged as a pivotal tool, offering crucial insights into key species under real-time operando conditions. Furthermore, the host–guest interaction between zeolites or surface species residing on zeolites and the reactant/active intermediates is revealed by the combination of in-situ13C MAS NMR and 2D correlation spectroscopy. Moreover, recent technological advancements in hyperpolarization（HP） methods, including HP129Xe NMR and dynamic nuclear polarization（DNP）, have significantly improved the sensitivity of ss NMR, enabling detailed structural and kinetic analysis as well as the detection of trace species. In this feature article, we summarized recent advancements in（in-situ） ss NMR spectroscopy applied to MTO reaction processes,encompassing mechanistic investigations at various stages and the intricate host–guest interactions. These theoretical insights into the dynamic evolution of MTO reactions lay a solid foundation for the optimization of catalytic processes and the development of efficient catalysts, thereby advancing the techniques towards more sustainable and economical production route for olefins.

关键词： MTO zeolites in-situ ssNMR reactive intermediates reaction mechanism

Recent progress in constructing fluorinated solid-electrolyte interphases for stable lithium metal anodes

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 270-291页

作者： Di Zhang Pengfei Lv wei qin Xin He Yuanhua He Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province College of Civil Aviation Safety EngineeringCivil Aviation Flight University of ChinaGuanghan 618307China School of Chemical Engineering Sichuan UniversityChengdu 610065China

Lithium metal batteries(LMBs)are emerging as a promising energy storage solution owing to their high energy density and specific ***,the non-uniform plating of lithium and the potential rupture of the solid-electrolyte interphase(SEI)during extended cycling use may result in dendrite growth,which can penetrate the separator and pose significant short-circuit *** a stable SEI is essential for the long-term operation of the ***-rich SEI has garnered significant attention for its ability to effectively passivate electrodes,regulate lithium deposition,and inhibit electrolyte *** the structural components and preparation methods of existing fluorinated SEI is crucial for optimizing lithium metal anode *** paper reviews the research on optimizing LiF passivation interfaces to protect lithium metal *** focuses on four types of compositions in fluorinated SEI that work synergistically to enhance SEI *** instance,combining compounds with LiF can further enhance the mechanical strength and ionic conductivity of the *** metals with LiF significantly improves electrochemical performance at the SEI/anode interface,with a necessary focus on reducing electron tunneling ***,incorporating polymers with LiF offers balanced improvements in interfacial toughness and ionic conductivity,though maintaining structural stability over long cycles remains a critical area for future *** alloys combined with LiF increase surface energy and lithium affinity,challenges such as dendrite growth and volume expansion *** summary,this paper emphasizes the crucial role of interfacial structures in LMBs and offers comprehensive guidance for future design and development efforts in battery technology.

关键词： LiF lithium metal anodes solid-electrolyte interphase interface cycling stability

综合物探技术在松软砂岩含水层富水性探测中的应用

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煤炭技术 2016年第8期35卷 121-123页

作者：秦旭卫神华大雁集团公司工程管理部内蒙古呼伦贝尔021000

以蒙东矿区敏东一矿13S101工作面为例,综合应用地面瞬变电磁和井下直流电法,对工作面顶板松软砂岩含水层的富水性进行探测,叠加圈定了疑似富水区范围。井下钻探结果表明,"地面瞬变电磁+井下直流电法"的综合物探技术能提高砂岩含水层富... 详细信息

以蒙东矿区敏东一矿13S101工作面为例,综合应用地面瞬变电磁和井下直流电法,对工作面顶板松软砂岩含水层的富水性进行探测,叠加圈定了疑似富水区范围。井下钻探结果表明,"地面瞬变电磁+井下直流电法"的综合物探技术能提高砂岩含水层富水性探测的精度。

关键词：松软砂岩富水性探测井下直流电法

Prospects on mangrove knowledge services in the smart era: From plant atlas to knowledge graphs

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Science China Earth Sciences 2025年第1期68卷 111-127页

作者： Zhi-wei HOU Wenlong JING Cheng-Zhi qin Ji YANG qing XIA Xiaoling YIN Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangdong Academy of Sciences Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Traffic & Transportation Engineering Changsha University of Science and Technology

Mangroves are crucial to the ecological security of the Earth and human well-being. Their management, conservation, and restoration are of great importance and necessitate the support of spatio-temporal information and multidisciplinary knowledge such as biology and ecology. Traditional knowledge services such as plant atlas provide illustrated textual knowledge of mangroves. However, this kind of service is oriented to information retrieval and is incapable of effectively mining and utilizing fragmented knowledge from multi-source heterogeneous data, facing the problem of “massive data, rare knowledge”. Knowledge graphs are capable of extracting, organizing, and fusing the knowledge contained in massive data into semantic networks that can be understood and computed by computers. They provide a solution for the realization of intelligent knowledge services. Focusing on the urgent need for mangrove knowledge acquisition, formal representation, and intelligent services, this paper proposes a research prospect on mangrove knowledge graphs and knowledge services. We first analyze the similarities and differences between various domain-specific concepts of Tupu. On this basis, we define the mangrove knowledge graph as a large-scale knowledge base that integrates multi-disciplinary knowledge and spatio-temporal information with mangrove ecosystems as the core. Then, we propose a research framework for mangrove knowledge services that can realize the transformation from multi-modal data to intelligent knowledge services, including multiple research levels such as ubiquitous data sensing and aggregation, knowledge organization and graph construction, and intelligent mangrove knowledge services. Subsequently, the methods and workflow for constructing mangrove knowledge graphs are introduced. Finally, we discuss the challenges and possible future directions of mangrove knowledge services in the smart era, including the construction of a mangrove knowledge system that integra

关键词： Mangrove Tupu Knowledge graph Multi-modal Knowledge service