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煤炭制样机应用中的问题
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作者 邵雅静 《设备管理与维修》 2020年第20期99-101,共3页
煤炭生产是我国工业生产中的重要项目,多年来国内在煤炭生产设备制造与应用方面表现突出,对煤炭大型制样机的生产及应用深入到位。研究我国大型煤炭制样机的应用相关理论,基于案例,分析对比煤炭联合制样机与传统锤式破碎机的技术数据,... 煤炭生产是我国工业生产中的重要项目,多年来国内在煤炭生产设备制造与应用方面表现突出,对煤炭大型制样机的生产及应用深入到位。研究我国大型煤炭制样机的应用相关理论,基于案例,分析对比煤炭联合制样机与传统锤式破碎机的技术数据,证明煤炭制样机的实际生产应用价值。 展开更多
关键词 大型联合煤炭制样机 生产工艺流程 应用实践 锤式破碎机
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大型重载液压驱动六足机器人样机实验 被引量:9
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作者 李昔学 留沧海 +2 位作者 刘佳生 蒋刚 卢晴勤 《机械设计与研究》 CSCD 北大核心 2016年第6期28-31,共4页
研发了大型重载液压驱动六足机器人样机(长5.5m、宽5.5m、高2m、承载500kg),该样机采用油缸对六条腿的十八个关节进行驱动。实现了一条腿上三个油缸的协调控制,并且在腿的姿态变化引起负载变化的情况下,依然能够使每条腿足端跟随期望的... 研发了大型重载液压驱动六足机器人样机(长5.5m、宽5.5m、高2m、承载500kg),该样机采用油缸对六条腿的十八个关节进行驱动。实现了一条腿上三个油缸的协调控制,并且在腿的姿态变化引起负载变化的情况下,依然能够使每条腿足端跟随期望的轨迹运动。除此之外,还实现了样机机体相对地面的水平前后运动、水平旋转运动,并在此基础上实现了四足步态的运动。 展开更多
关键词 六足机器人 液压驱动 重载 大型样机
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Analysis of Prognostic Factors of Esophageal and Gastric Cardiac Carcinoma Patients after Radical Surgery Using Cox Proportional Hazard Model-A Random Sampling Study from the Fourth Hospital of Hebei Medical University during the Period of 1996-2004
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作者 Wei Liu Xishan Hao +12 位作者 Qian Fan Peizhong Wang Haixin Li Linan Song Shijie Wang Ying Jin Yong Chen Liyun Guan Yumin Ping Xianli Meng Rui Wang Junfeng Liu Xiaoling Wang 《Clinical oncology and cancer researeh》 CAS CSCD 2009年第4期290-295,共6页
OBJECTIVE To retrospectively analyze clinical data of patientsfrom our hospital who underwent radical surgery for esophagealcarcinoma and for adenocarcinoma of the gastric cardia,as well asto investigate prognostic fa... OBJECTIVE To retrospectively analyze clinical data of patientsfrom our hospital who underwent radical surgery for esophagealcarcinoma and for adenocarcinoma of the gastric cardia,as well asto investigate prognostic factors affecting the long-term survival ofthe patients.METHODS Data from the patients eligible for our study,admitted to the 4th Hospital of Hebei Medical University fromJanuary 1996 to December 2004,were randomized,and 12distinctive clinicopathologic factors influencing the survival rateof those who underwent radical surgery for esophageal carcinomaor carcinoma of the gastric cardia were collected.Univariate andmultivariate analysis of these individual variables were performedusing the Cox proportional hazard model.RESULTS It was shown by univariate analysis that age,tumorsize,pathologic type,lymph node status,TNM staging,depthof infiltration and encroachment into local organs,etc.,were thefactors that markedly influenced the prognosis of patients(P<0.01).Multivariate analysis showed that pathologic type,numberof the lymph node metastases,involvement of local organs,andTNM staging were independent prognostic factors(P<0.05).CONCLUSION The independent factors influencing theprognosis of patients with esophageal cancer and carcinoma ofthe gastric cardia include pathologic type,number of lymph nodemetastases,involvement of local organs and TNM staging.Themain prognostic factors affecting the patient's survival are patientage,tumor size and depth of infiltration.In addition,patients withinvolvement of the local organs have a worse prognosis,and theyshould be closely followed up. 展开更多
关键词 esophageal carcinoma carcinoma of gastriccardia Cox model prognosis.
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