检索结果-南通市图书馆

Investigation of Performance of Turret Assembly in Inboard Turret Mooring System

在线全文

学校读者我要写书评

暂无评论

China Ocean Engineering 1991年第4期6卷 409-418页

作者： ma peisun , ma Lie and Lu Shunshou Associate Professor, shanghai jiaotong university, shanghai Graduate, shanghai jiaotong university, shanghai Engineer, shanghai jiaotong university, shanghai

To fulfil the need of development of offshore oil floating production system, the performance of turret assembly in an inboard turret mooring system has been investigated in the paper. By means of systematic evaluation, the optimal structure of the turret for single-point mooring systems has been determined. Through model tests of a turret mooring system, several groups of data such as forces, moments and displacements under different environmental conditions have been obtained. Stresses and strains of the turret structure have been calculated by means of the finite element method corresponding to the situation in the model experiment. The study shows that the selected turret structure and the designed turret assembly are technically feasible.

关键词： turret mooring system structure calculations finite element method turret assembly

RESEARCH OF KINEmaTIC CHARAC－TERISTICS FOR QUADRUPED WALKING VEHICLE WITH LEGS OF DIFFERENT DISPOSITIONS OF DOFS

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 1994年第4期7卷 275-280页

作者： ma peisun Xu Peijun Xu Xiaofeng (shanghai jiaotong university)

Systematic analyses have been made to three typical dispositions of walking vehicle leg,and their kinematic characteristics are obtained respectively. a reliable theoretical guidance for theselection of the form is pr... 详细信息

关键词： Quadruped walking vehicle Leg

A combined moving mechanism with independent movement in longitudinal direction and transverse direction

在线全文

学校读者我要写书评

暂无评论

High technology Letters 2007年第3期13卷 230-234页

作者：于会涛 Sun Hong ma peisun Research Institute of Robotics Shanghai Jiaotong University Shanghai 200030 P.R. China

To make the detecting robot move on the surface of the finned tubes, a novel combined moving mechanism is developed. The combined moving mechanism is composed of sprocket wheel and drum-like small wheel installed on the chain. It can make the robot move independently in the direction parallel to the tubes and in the direction perpendicular to the tubes. This paper made a detailed discussion on the composition of the combined moving mechanism, the design method of the conjugate outline curve and the circular-arc outline curve of the drum-like small wheel that meshes with the tubes. The error of the circular-arc outline curve is also analyzed.

关键词： detecting robot combined mechanism error analysis

Discrete wavelet transform-based fault diagnosis for driving system of pipeline detection robot arm

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High technology Letters 2005年第4期11卷 397-400页

作者：邓辉宇 Wang Xinli ma peisun Roboties Institute Shanghai Jiaotong University Shanghai 200030 P.R. China Department of Electrical Engineering Harbin Institute of Technology Harbin 150001 P.R. China

A real-time wavelet multi-resolution analysis (MRA)-based fault detection algorithm is proposed. The first stage detailed MRA signals extracted from the original signals were used as the criteria for fault detection. By measuring sharp variations in the detailed MRA signals, faults in the motor driving system of pipeline detection robot arm could be detected. The fault type was then identified by comparison of the three-phase MRA sharp variations. The effects of the faults were examined. The simulation results show that this algorithm is effective and robust, it is promising for fault detection in a robot's joint driving system. The method is simple, rapid and it can operate in real time.

关键词： driving system multi-resolution analysis fault diagnosis

Microbionic and peristaltic robots in a pipe

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2000年第11期45卷 985-988页

作者： ma Jianxu LIU Xiang ma Jianhua LI Mingdong ma peisun School of Mechanical Engineering Shanghai Jiaotong University.Shanghai 200030China Pericom technology Co.Ltd. Shanghai 200233China Pingquan Normal College Pingquan 067500China

A microbionic and peristaltic robot that simulates the motion of an earthworm to move within a micropipe is proposed. The robot consists of three flexible units. Each unit is composed of two plates connected with three shape memory alloys (Sma) 120° apart, the rubber gasbag around the Sma wires inflated with air inside. Each unit corresponds to a segment of an earthworm, and the Sma and rubber gasbag have the same functions as the cricoid and longitudinal muscles of the earthworm. A control system is designed to fulfill the control of the three flexible units motions, such as stretching, shrinking and bending, so the microrobot can walk forward and backward, and choose the direction.

关键词： microrobot simulating earthworm soft pipe.

在线全文

学校读者我要写书评

暂无评论

四足机器人对角小跑步态的研究

上海交通大学学报 1997年第6期31卷 18-23页

作者：陈佳品程君实冯萍马培荪潘俊民席裕庚上海交通大学信息存储研究中心

介绍了ＪＴＵＷＭ－Ⅲ型多关节四足步行机器人．设计了Ｔｒｏｔｔｉｎｇ步态，并完成了Ｔｒｏｔｉｎｇ动态步行实验．步行速度为０．２ｋｍ／ｈ，占空系数β＝０．５．

关键词：四足机器人轨迹控制对角小跑步态机器人

在线全文

学校读者我要写书评

暂无评论

油罐容积检测用爬壁机器人的研制

上海交通大学学报 1996年第11期30卷 159-164页

作者：马培荪陈佳品俞翔上海交通大学机械工程系上海交通大学信息存储研究中心上海协昌缝纫机厂

研究一种用于检测油罐容积的爬壁机器人．该机器人用永磁铁作为磁吸盘元件，磁吸盘连接在链条上，具有一个特殊磁路以产生机器人吸附在壁上所需的磁力．设计了磁性定向转位机构和力分散机构．为满足油罐测量精度，设置了姿态和位置传感... 详细信息

研究一种用于检测油罐容积的爬壁机器人．该机器人用永磁铁作为磁吸盘元件，磁吸盘连接在链条上，具有一个特殊磁路以产生机器人吸附在壁上所需的磁力．设计了磁性定向转位机构和力分散机构．为满足油罐测量精度，设置了姿态和位置传感器．机器人控制采用多层计算机，上层处理机器人管理和路径规划，下层用于爬壁机器人的姿态和运动控制．

关键词：爬壁机器人容积检测磁性吸盘油罐

全方位四足步行机器人JTUWM－Ⅱ转弯步态控制的研究

在线全文

学校读者我要写书评

暂无评论

上海交通大学学报 1995年第5期29卷 87-92页

作者：马培荪马烈新加坡EXCEL高技术公司

本文以四足步行机器人为研究对象研究了转弯步态控制的实现途径．在分析前人研究的基础上，拟定了适合于实际控制的重心沿多折线行走的转弯步态，并详细讨论了转弯步态过程及其可行性．该步态控制已在所研制的ＪＴＵＷＭ－Ⅱ型全方位四... 详细信息

本文以四足步行机器人为研究对象研究了转弯步态控制的实现途径．在分析前人研究的基础上，拟定了适合于实际控制的重心沿多折线行走的转弯步态，并详细讨论了转弯步态过程及其可行性．该步态控制已在所研制的ＪＴＵＷＭ－Ⅱ型全方位四足机器人上实现．

关键词：步行机器人步态控制转弯步态机器人

Enhancement of anti-PD-L1 antibody plus anlotinib efficacy due to downregulation of PD-L1 in the micro-conduit endothelium within the tumor: a randomized double-blind trial

在线全文

学校读者我要写书评

暂无评论

Cancer Biology & Medicine 2024年第10期 951-962页

作者： Cuicui Zhang Tianqing Chu Qiming Wang Ying Cheng Yongxiang Zhang Ruili Wang Leilei ma Chaonan Qian Baohui Han Kai Li Department of Thoracic Oncology Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and TherapyTianjin Tianjin's Clinical Research Center for Cancer Department of Respiratory Medicine Shanghai Chest Hospital Shanghai Jiaotong University Department of Internal Medicine Affiliated Cancer Hospital of Zhengzhou University Henan Cancer Hospital Department of Thoracic Medical Oncology Jilin Cancer Hospital Department of Respiratory & Critical Care Medicine Tianjin Chest Hospital Panovue Biotechnology (Beijing) Co. Ltd Medical Affairs Department Chia-Tai Tian Qing Pharmaceutical Co.Ltd. Department of Radiation Oncology Guangzhou Concord Cancer Center

Objective: The possible enhancing effect of anlotinib on programmed death receptor ligand（PD-L1） antibody and the efficacypredicting power of PD-L1 in micro-conduit endothelium, including lymphatic endothelial cells（LECs） and blood endothelial cells（BECs）, were determined to identify patients who would benefit from this ***: PD-L1 positivity in LECs, BECs, and tumor cells（TCs） was assessed using paraffin sections with multicolor immunofluorescence in an investigator's brochure clinical trial of TQB2450（PD-L1 antibody） alone or in combination with anlotinib in patients with non-small cell lung cancer. Progression-free survival（PFS） with different levels of PD-L1 expression was compared between the two ***: Among 75 patients, the median PFS（m PFS） was longer in patients who received TQB2450 with anlotinib [10 and 12 mg（161 and 194 days, respectively）] than patients receiving TQB2450 alone（61 days） [hazard ratio（HR）10 mg= 0.390（95% confidence interval {CI}, 0.201±0.756）, P = 0.005; HR12 mg= 0.397（0.208±0.756）, P = 0.005]. The results were similar among 58 patients with high PD-L1 expression in LECs and TCs [159 and 209 vs. 82 days, HR10 mg= 0.445（0.210±0.939）, P = 0.034; HR12 mg= 0.369（0.174±0.784）, P = 0.009], and 53 patients with high PD-L1 expression in BECs and TCs [161 and 209 vs. 41 days, HR10 mg= 0.340（0.156±0.742）, P = 0.007; HR12 mg= 0.340（0.159±0.727）, P = 0.005]. No differences were detected in the m PFS between the TQB2450 and combination therapy groups in 13 low/no LEC-expressing and 18 low/no BEC-expressing PD-L1 ***: Mono-immunotherapy is not effective in patients with high PD-L1 expression in LECs and/or BECs. Anlotinib may increase efficacy by downregulating PD-L1 expression in LECs and/or BECs, which is presumed to be a feasible marker for screening the optimal immune patient population undergoing anti-angiogenic therapy.

关键词：