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Transformation and entropy for fuzzy rough sets

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Journal of Systems Engineering and Electronics 2008年第1期19卷 94-98页

作者： Zhang Chengyi li dongya Fu Haiyan Chen Guohui Dept. of Math. and Comp. Sc. Hainan Normal Univ. Haikou 571158 P. R. China Dept. of Math. Huanghuai College Zhumadian 463000 P. R. China School of Mathematics and System Science Shandong Univ. Jinan 250100 P. R. China

A new method for translating a fuzzy rough set to a fuzzy set is introduced and the fuzzy approximation of a fuzzy rough set is given. The properties of the fuzzy approximation of a fuzzy rough set are studied and a fuzzy entropy measure for fuzzy rough sets is proposed. This measure is consistent with similar considerations for ordinary fuzzy sets and is the result of the fuzzy approximation of fuzzy rough sets.

关键词： fuzzy approximation fuzzy rough set fuzzy entropy

Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding machine spindles

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Frontiers of Mechanical Engineering 2023年第3期18卷 203-217页

作者： Xin PAN Haoyu ZHANG Jinji GAO Congcong XU dongya li Beijing Key Laboratory of Health Monitoring and Self-recovery for High-end Mechanical Equipment Beijing University of Chemical TechnologyBeijing 100029China Luoyang Bearing Research Institute Corporation Luoyang 471033China

Modern rotating machines,which are represented by high-end grinding machines,have developed toward high precision,intelligence,and high durability in recent *** the core components of grinding machine spindles,grinding wheels greatly affect the vibration level during *** unbalance vibration self-recovery regulation(UVSRR)system is proposed to suppress the vibration of grinding wheels during workpiece processing,eliminating or minimizing the ***,technical principles and the system composition are ***,the balancing actuator in the UVSRR system is analyzed in *** advanced nature of the improved structure is presented through structure introduction and advantage *** performance of the balancing actuator is mutually verified by the theoretical calculation of torque and software *** show that the self-locking torque satisfies the actual demand,and the driving torque is increased by 1.73 times compared with the traditional ***,the engineering application value of the UVSRR system is verified by laboratory performance comparison and actual factory *** balancing speed and effect of the UVSRR system are better than those of an international mainstream product and,the quality of the workpieces machined in the factory improved by 40%.

关键词： SUVSRRR system radial electromagnetic type vibration suppression performance simulation engineering application

Ultra-fast 3D printing of assembly——free complex optics with sub-nanometer surface quality at mesoscale

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International Journal of Extreme Manufacturing 2023年第3期5卷 585-595页

作者： Shuai Peng Jiawen Xu dongya li Jun Ren Meng Zhang Xiaolong Wang Yu liu School of Mechanical Engineering Jiangnan University214122WuxiPeople’s Republic of China Jiangsu Key Lab of Advanced Food Manufacturing Equipment and Technology Jiangnan University214122 WuxiPeople’s Republic of China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of Sciences730000 LanzhouPeople’s Republic of China

Complex-shaped optical lenses are of great interest in the areas of laser processing,machine vision,and optical ***,the processing of complex optical lenses is usually achieved by precision machining combined with post-grinding or polishing,which is expensive,labor-intensive and difficult in the processing of ultra-complex optical *** manufacturing is an emerging technology that provides significant advantages in producing highly intricate optical ***,the layer-by-layer method employed in such manufacturing processes has resulted in low printing speeds,as well as limitations in surface *** address these challenges,we apply tomographic volumetric printing(TVP)in this work,which can realize the integrated printing of complex structural models without *** coordinating the TVP and the meniscus equilibrium post-curing methods,ultra-fast fabrication of complex-shaped lenses with sub-nanometric roughness has been achieved.A2.5 mm high,outer diameter 9 mm spherical lens with a roughness value of RMS=0.3340 nm is printed at a speed of 3.1×10^(4)mm^(3)h^(-1).As a further demonstration,a complex-shaped fly-eye lens is fabricated without any part *** designed spherical lens is mounted on a smartphone’s camera,and the precise alignments above the circuit board are *** further optimization,this new technology demonstrates the potential for rapid fabrication of ultra-smooth complex optical devices or systems.

关键词： tomographic volumetric printing meniscus equilibrium post-curing methods spherical lens sub-nanometric roughness

Enhanced ozonation degradation of atrazine in the presence of nano-ZnO： Performance, kinetics and effects

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Journal of Environmental Sciences 2017年第11期29卷 3-13页

作者： Xiangjuan Yuan Xuan Yan Haiming Xu dongya li Lei Sun Gang Cao Dongsheng Xia School of Enuironmental Engineering Wuhan Textile University Wuhan 430073 China Engineering Research Center for Clean Production of Textile Dyeing and Printing Ministry of Education Wuhan 430073 China

Enhanced ozonation degradation of atrazine（ATZ） with nano-ZnO（nZnO） as catalyst and the influences of the operational parameters have been investigated through semi-continuous experiments in this study. The results demonstrated that the combination of ozone（O3） and nZnO showed an obvious synergetic effect and the ATZ degradation conformed to pseudo-first-order kinetics. An improvement of ATZ degradation efficiency by 41.8% and pseudo-first-order rate constant by more than a factor of four was obtained in the O3/nZnO process after 5 min of reaction compared to O3 alone. Meanwhile, the degradation efficiency of ATZ was gradually enhanced with increasing nZnO dosage and initial pH in the range from 3.0 to 8.0, and a higher amount of ATZ was degraded when the initial concentration of ATZ rose from 0.5 to 5 mg/L. Additionally, sulfate ion, chloride ion, nitrate ion and low concentrations of humic acid substances led to enhancement of the ATZ degradation. The notable decrease of ATZ removal efficiency observed in the presence of radical scavengers and the results of free radical tests indicated thatUOH is the dominant active radical species. The mechanism investigation demonstrated that the enhancement effect could be attributed to the introduction of nZnO,which could promote the utilization of O3, enhance the formation of superoxide radical, and further accelerate the production of hydrogen peroxide and the generation of OH/O2-.

关键词： Nano-ZnO Atrazine Catalytic ozonation Reaction mechanism

Product Fingerprints for the Evaluation of Tool/Polymer Replication Quality in Injection Molding at the Micro/Nano Scale

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Nanomanufacturing and Metrology 2021年第4期4卷 278-288页

作者： Dario Loaldi Francesco Regi dongya li Nikolaos Giannekas Matteo Calaon Yang Zhang Guido Tosello Department of Mechanical Engineering Technical University of Denmark(DTU)2800 Kongens LyngbyDenmark

Replication processes for the manufacturing of micro/nano-structured components are characterized by a certain degree of precision and *** transcription loss,or replication fidelity,defines the geometrical and dimensional correspondence of micro/nano-structure from metal tool inserts into plastic patterned *** employment of a vast spectrum of micro/nano-structured geometries calls for methodologies that can be used for the estimation of replication *** study presents a number of product fingerprints,which propose multiple ways to characterize micro/nano structures in replication *** fidelity yielded values above 80%and up to 96%depending on the considered product fingerprints and their ***,a correlation of the product fingerprint with the process parameters was found to optimize the replication *** uncertainty accompanies the analysis of the product fingerprints,enabling a standardized,robust,and quantitative methodology for process learning,modeling,and optimization.

关键词： Micro/nano replication Product fingerprinting Metrology Micro injection molding

A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t（8;14）（q24;q32） translocation

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Frontiers of Medicine 2018年第3期12卷 324-329页

作者： Xiaofeng Shi Rong Ba Haiyan You Qian Jiang Jiansong Huang Jianhua Mao Lanxiu Han Shuo Zhang Qin Zhuang Xianqiu Yu lixia Wang Yun Wang dongya li Wei Zhu Yong Zhang Yan Zhu Xiaodong Xi Department of Hematology Affiliated Hospital of Jiangsu University Zhenjiang 212001 China The Center of Thrombosis Affiliated Hospital of Jiangsu University Zhenjiang 212001 China State Key Laboratory of Medical Genomics Shanghai Institute of Hematology Collaborative Innovation Center of Hematology Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Institute of Hematology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310003 China School of Medicine Jiangsu University Zhenjiang 212013 China Blood Cell Development and Function Program Fox Chase Cancer Center 333 Cottman Avenue Room 364 Philadelphia PA 19111-2497 USA

Splenic lymphoma with villous lymphocytes （SLVL） or splenic marginal zone lymphoma with circulating villous lymphocytes is rare, and prolymphocytic transformation of SLVL is rarer. At present, only one case of SLVL with t（8;14）（q24;q32） translocation has been reported. In this study, we report a case of B- lymphoproliferative disorder with villous lymphocytes harboring t（8;14）（q24;q32） chromosome translocation that we inclined to SLVL with a prolymphocytic transformation. A 73-year-old female showed marked hepatosplenomegaly and high lymphocytosis （lymphocytes 〉 200 × 10^9/L）. The abnormal lymphocytes had short coarse villi and round nuclei with prominent nucleoli. The immunophenotypes showed CD19^＋, CD20^＋, HLA- DR^＋, CD22^＋, CD5^＋, Kappa^＋, CD25^dim, CD71^dim, Lambda, CD7, CD10-, CD23 , CD34, CD33, CD13 , CD14, CDll7, CD64, CD103, and CD11c-. The karyotype showed complex abnormality： 46XX,＋ 3,-10, t（8;14）（q24; q32）lll]/46XX[9]. The cytoplasmic projection, immunological characteristics, and trisomy 3 chromosome abnormality supported the diagnosis of SLVL. However, the presence of prominent nucleoli and high lymphocytosis suggested prolymphocytic transformation, probably as a result of t（8,14） chromosome translocation. In this report, we described an unusual case of B-lymphoproliferative disorder with villous lymphocytes harboring t（8;14）（q24;q32） translocation, which could provide help in the diagnosis and differential diagnosis of B-lymphocytic proliferative diseases.

关键词： splenic lymphoma with villous lymphocytes splenic marginal zone lymphoma transformation chromosometranslocation

基于发那科数控系统的四自由度自动上下料系统设计

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机床与液压 2018年第11期46卷 75-78页

作者：李东亚苏州大学应用技术学院江苏苏州215000

为提高生产效率实现无人自动化工厂,以运动控制开发系统、数控系统、加工中心机床主体和四自由度机械手自动送料机构为开发平台,通过运动控制开发系统对四自由度机械手的搬运路径规划设计,协同数控系统及加工中心机床主体构成一个柔性... 详细信息

为提高生产效率实现无人自动化工厂,以运动控制开发系统、数控系统、加工中心机床主体和四自由度机械手自动送料机构为开发平台,通过运动控制开发系统对四自由度机械手的搬运路径规划设计,协同数控系统及加工中心机床主体构成一个柔性制造单元,使该平台具备自动上料、自动装夹、自动加工、自动下料的功能,是传统制造业的转型升级的一个典型案例。

关键词：自动上下料运动控制开发系统搬运路径

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母亲声音干预在早产儿护理中的应用研究进展

护理研究 2020年第4期34卷 661-665页

作者：孙静李东雅湖南中医药大学

从母亲声音干预(MSI)作用机制、效果、临床运用中需关注的重点内容等方面综述MSI在早产儿护理中的应用研究进展,以期为国内开展相关研究提供参考。

关键词：母亲声音干预早产儿护理认知语言喂养不耐受生长发育音量综述

Novel Class of Additive Manufactured NiTi-Based Hierarchically Graded Chiral Structure with Low-force Compressive Actuation for Elastocaloric Heat Pumps

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Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers) 2023年第2期2卷 54-65页

作者： Xin Peng Luhao Yuan Donghua Dai Yu liu dongya li Dehui Zhu Ziyu Fang Chenglong Ma Dongdong Gu Meiping Wu Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment&Technology School of Mechanical EngineeringJiangnan UniversityWuxi214122China Jiangsu Province Engineering Research Center of Micro-Nano Additive and Subtractive Manufacturing Wuxi214122China College of Material Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing210016China Sino-French Engineer School Nanjing University of Science and TechnologyNanjing210094China

Elastocaloric refrigeration is the most promising green solid-state refrigeration technology to replace conventional vapor compression *** development direction of the elastocaloric component that acts as a key part of the elastocaloric refrigeration system contains a large elastocaloric effect,low stress hysteresis,high heat exchange performance,and small driving *** first two indices can be realized by material modification;however,the last two are more dependent on a novel porous structure ***,the conventional porous structure is confronted with some critical challenges,including inhomogeneous stress,a significant hysteresis area,and deformation instability under the alternating cyclic *** this study,a NiTi-based elastocaloric structure model with chirality feature and gradient design as innovative elements was presented,bio-inspired by the structure of the plant tendrils.A quantitative optimization for the NiTi-based elastocaloric structure was performed using the finite element analysis(FEA)*** and martensite volume fraction(MVF)fields during the loading and unloading processes were predicted and *** simulated results indicated that increasing the thickness gradient g_(1) of the strip or decreasing the diameter gradient g_(2) of the structure was beneficial to achieving more homogeneous strain and martensite distribution,simultaneously with higher energy storage efficiency and specific surface *** addition,these NiTi-based chiral structures with different structural parameters were fabricated by laser powder bed fusion(LPBF).At the optimized structure parameters of g_(1)=2 and g_(2)=1.11,the LPBF-fabricated NiTi-based chiral structure could achieve an adiabatic temperature change ΔT_(ad) of 2.3 K,driving force of as low as 149.11 N,and|ΔT_(ad)/F|of as high as 15.42 K/kN at a recoverable compressive strain of 10%.

关键词： Laser powder bed fusion NiTi alloys Elastocaloric effect Chiral structure