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XML-based Data Processing in Network Supported Collaborative Design

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International Journal of Automation and computing 2010年第3期7卷 330-335页

作者： Qi Wang zhong-wei Ren zhong-Feng guo School of Mechanical Engineering Shenyang University of Technology Shenyang 110870 PRC

In the course of network supported collaborative design, the data processing plays a very vital role. Much effort has been spent in this area, and many kinds of approaches have been proposed. Based on the correlative materials, this paper presents extensible markup language （XML） based strategy for several important problems of data processing in network supported collaborative design, such as the representation of standard for the exchange of product model data （STEP） with XML in the product information expression and the management of XML documents using relational database. The paper gives a detailed exposition on how to clarify the mapping between XML structure and the relationship database structure and how XML-QL queries can be translated into structured query language （SQL） queries. Finally, the structure of data processing system based on XML is presented.

关键词： Extensible markup language (XML) network supported collaborative design standard for the exchange of product model data (STEP) data analysis data processing relational database

A comparative study on ApEn,SampEn and their fuzzy counterparts in a multiscale framework for feature extraction

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第4期11卷 270-279页

作者： guo-liang XIONG Long ZHANG He-sheng LIU Hui-jun ZOU wei-zhong guo School of Mechatronie Engineering East China Jiaotong University Nanchang 330013 China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Physics Shangrao Normal University Shangrao 334001 China

Feature extraction from vibration signals has been investigated extensively over the past decades as a key issue in machine condition monitoring and fault *** existing methods,however,assume a linear model of the underlying *** this study,the feasibility of devoting nonlinear dynamic parameters to characterizing bearing vibrations is ***,fuzzy sample entropy (FSampEn) is formulated by defining a fuzzy membership function with clear physical ***,inspired by the multiscale sample entropy (multiscale SampEn) which is originally proposed to quantify the complexity of physiological time series,we placed approximate entropy (ApEn),fuzzy approximate entropy (FApEn) and the proposed FSampEn into the same multiscale *** led to the developments of multiscale ApEn,multiscale FApEn and multiscale ***,all four multiscale entropies along with their single-scale counterparts were employed to extract discriminating features from bearing vibration signals,and their classification performance was evaluated using support vector machines (SVMs).Experimental results demonstrated that all four multiscale entropies outperformed single-scale ones,whilst multiscale FSampEn was superior to other multiscale methods,especially when analyzed signals were contaminated by heavy *** with statistical features in time domain also support the use of multiscale FSampEn.

关键词： Fault diagnosis Bearing Multiscale entropy Feature extraction Support vector machines (SVMs)

Grasshopper （Orthoptera： Acrididae） biodiversity and grassland ecosystems

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Insect Science 2006年第3期13卷 221-227页

作者： zhong-wei guo HONG-CHANG LI YA-LING GAN Key Laboratory of Animal Ecology and Conservation Biology State Key Laboratory of Integrated Mangement of Pest Insectsand Rodents Institute of Zoology Chinese Academy of Sciences Beijing China

Interesting results may arise by combining studies on the structure and function of ecosystems with that of biodiversity for certain species. Grasshopper biodiversity is the result of the evolution of grassland ecosystems; however, it also impacts on the structure and the function of those ecosystems. We consider there to be a close relationship between the health of grassland ecosystems and grasshopper biodiversity. The main problems involved in this relationship are likely to include：（i） grasshopper biodiversity and its spatial pattern; （ii） the effect of grasshopper biodiversity on the ecological processes of grassland ecosystems; （iii） the biodiversity threshold of grasshopper population explosions; （iv） the relationship between grasshopper biodiversity and the natural and human factors that affect grassland ecosystems; and （v） grasshopper biodiversity and the health of grassland ecosystems. The solutions to these problems may provide sound bases for controlling disasters caused by grasshoppers and managing grassland ecosystems in the west of China. In this paper, we introduced two concepts for grasshopper biodiversity, that is, ＂spatial pattern＂ and ＂biodiversity threshold＂. It is helpful to understand the action of the spatial pattern of grasshopper biodiversity on the ecological processes of grassland ecosystems and the effect of this spatial pattern on the health of those ecosystems, owing to the fact that, in the west of China, grasslands are vast and grasshoppers are widely distributed. Moreover, we inferred that the change in the level of component richness at each type of grasshopper biodiversity can make an impact on grassland ecosystems, and therefore, there is likely to be a threshold to grasshopper biodiversity for the stability and the sustainability of those ecosystems.

关键词： biodiversity grasshopper grassland ecosystem spatial pattern threshold

Diagnosis and treatment of acute rejection in the first case of human living-related small bowel transplantation with a long-term survival in China

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World Journal of Gastroenterology 2005年第34期11卷 5332-5335页

作者： wei-Liang Song wei-zhong Wang guo-Sheng Wu Meng-Bin Li Ji-Peng Li Gang Ji Guang-Long Don Hong-wei Zhang Department of Gastrointestinal Surgery Xijing HospitalFourth Military Medical University Xi'an 710032 Shaanxi Province China

AIM： To report the comprehensive diagnosis and treatment of acute rejection in the first case of living-related small bowel transplantation with a long-term survival in China. METHODS： A 18-year-old boy with short gut syndrome underwent living-related small bowel transplantation, with the graft taken from his father （44-year old）. A segment of 150-cm distal small bowel was resected from the donor. The ileo-colic artery and vein from the donor were anastomosed to the infrarenal aorta and vena cava of the recipient respectively. The intestinal continuity was restored with an end-to-end anastomosis between the recipient jejunum and donor ileum, and the distal end was fistulized. FK506, MMF and prednisone were initially used for post-transplant immunosuppression. Endoscopic observation and mucosal biopsies of the graft were carried out through the terminal ileum enterostomy; serum was collected to detect the levels of IL-2R, IL-4, IL-6 and IL-8. The change of the graft secretion and absorption was observed. RESULTS： Acute rejection was diagnosed promptly and cured. The patient was in good health, 5 years after living- related small bowel transplantation. CONCLUSION： The correct diagnosis and treatment of acute rejection are the key to the long-term survival after living-related small bowel transplantation.

关键词： Rejection Comprehensive diagnosis Small bowel transplantation

Sequence-activated chemiluminescence probes: programmable illumination for high-contrast in vivo sensing and imaging

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Science China Chemistry 2025年第1期68卷 26-34页

作者： Yutao Zhang Juan Li wei-Hong Zhu Zhiqian guo Shanghai Key Laboratory of Functional Materials Chemistry Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Institute of Fine Chemicals School of Chemistry and Molecular Engineering East China University of Science and Technology State Key Laboratory of Bioreactor Engineering Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell MetabolismEast China University of Science & Technology

Sequence-activated chemiluminescence(CL) technique offers a unique approach to detecting specific biomolecules or cellular events with high sensitivity and spatial resolution. The fundamental principle behind sequence-activated CL probes involves tailoring highly-controllable CL signals in response to specific sequences or events of interest, thus enabling high-contrast signals under complex physiological conditions. This sequential activation could be triggered by enzymes, reactive oxygen species(ROS), biothiols or changes in the microenvironment. These unique sequence-activated CL probes bestow several advantages, including minimal background, deep-tissue penetration, and the ability of non-invasive or minimally invasive detection. The sequence-activated CL techniques represent a significant advancement in molecular imaging and diagnostics. In this mini-review, we focus on the latest developments in sequential CL probes, addressing the technical challenges and discussing the future trajectory by harnessing CL signaling and molecular recognition.

关键词： chemiluminescnece sequence-activation in-vivo bioimaging cyclic peroxide

A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

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Journal of Thermal Science 2025年第1期34卷 145-158页

作者： guo Xingduo LI Yinran LI Rennian MA Yulong wei Kui College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Fluid Machinery and Systems Gansu Provincial Technology Centre for Wind Turbines

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL) wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

关键词： horizontal axis wind turbine turbulence wind tunnel experiment wind turbine wake

罗库溴铵和顺式阿曲库铵对分娩期大鼠离体子宫平滑肌收缩的影响

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第二军医大学学报 2011年第6期32卷 677-679页

作者：仲伟国朱海上海市普陀区妇婴保健院妇产科上海200060 上海市普陀区妇婴保健院麻醉科上海200060

目的研究非去极化肌松药罗库溴铵和顺式阿曲库铵对分娩期SD大鼠离体子宫平滑肌收缩功能的影响。方法脱颈椎法处死分娩期SD大鼠,取子宫平滑肌组织,放置离体实验装置中,浴槽中给予去极化肌松药,通过换能器转换,将平滑肌收缩情况记录于多... 详细信息

目的研究非去极化肌松药罗库溴铵和顺式阿曲库铵对分娩期SD大鼠离体子宫平滑肌收缩功能的影响。方法脱颈椎法处死分娩期SD大鼠,取子宫平滑肌组织,放置离体实验装置中,浴槽中给予去极化肌松药,通过换能器转换,将平滑肌收缩情况记录于多道生理信号分析仪;然后分别用缩宫素和肌松药拮抗剂新斯的明作用于平滑肌,并分别记录收缩值。数据采用SPSS 17.0处理,SigmaPlot作图,比较药物作用下平滑肌收缩抑制情况。结果罗库溴铵和顺式阿曲库铵对分娩期SD大鼠离体子宫平滑肌收缩具有抑制作用(P<0.05),罗库溴铵和顺式阿曲库铵组间差异无统计学意义;加入缩宫素和新斯的明后,被抑制的平滑肌收缩力增强(P<0.05)。结论罗库溴铵和顺式阿曲库铵对分娩期SD大鼠离体子宫平滑肌收缩功能可产生抑制作用,缩宫素和新斯的明可缓解非去极化肌松药对离体子宫平滑肌的收缩抑制。

关键词：神经肌肉非去极药子宫平滑肌收缩缩宫素新斯的明

Enantioselective reductive conjugate alkenylation of α,β-enones with keto alkenyl acetates by nickel catalysis

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Science China Chemistry 2025年第1期68卷 157-162页

作者： Rong-De He Yun-Lei Luo Qiu-Quan Pan Qi-wei Yao Xing-zhong Shu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University

Reactions involving alkenyl acetates offer cost-effective and environmentally friendly routes for alkene synthesis, yet their asymmetric variant remains elusive. Concurrently, asymmetric conjugate alkenylation predominantly centered on nucleophilic addition using alkenyl–M. This manuscript presents an asymmetric reductive conjugate alkenylation reaction involving alkenyl acetates. The method facilitates the enantioselective addition of keto alkenyl groups to α,β-enones, resulting in the formation of unsaturated diketones—a class of useful structural motifs that are challenging to access otherwise. The use of electron-rich Pyroxy ligand is essential for achieving both high reaction efficiency and enantioselectivity.

关键词： nickel alkenylation asymmetric cross-coupling alkenes

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三轴稳定深空探测器的自主姿态制导

宇航学报 2006年第2期27卷 286-290页

作者：仲维国崔祜涛崔平远哈尔滨工业大学深空探测基础研究中心哈尔滨150001

针对深空探测器定向任务、定向手段和姿态约束的多样性,需要为探测器制订多种三轴姿态定向方案;同时深空环境对姿态敏感器选用造成了限制,使得从控制回路外部引入参考姿态指令成为必然。对此提出姿态制导的概念,给出了参考的姿态参数的... 详细信息

针对深空探测器定向任务、定向手段和姿态约束的多样性,需要为探测器制订多种三轴姿态定向方案;同时深空环境对姿态敏感器选用造成了限制,使得从控制回路外部引入参考姿态指令成为必然。对此提出姿态制导的概念,给出了参考的姿态参数的星上实时计算方法,该算法利用自主导航信息,从矢量代数和矢量运动学的途径给出了定向任务所需的参考姿态和参考姿态角速率。制导方法经过了小天体探测多任务模式姿态控制数学仿真与演示的验证,能满足多种定向方案对姿态控制指令提出的算法通用、实时计算、便于星上自主实施的要求。

关键词：姿态制导自主姿态控制深空探测