In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recor...In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recorded the motion parameters of the HSB by gyroscope and accelerometer sensors,while using a special data acquisition technique.Additionally,a Chebychev highpass filter was applied as a noise filter to the accelerometer sensor.Then,a novel 3 degrees of freedom(DoF)parallel mechanism(1T2R)with prismatic actuators is proposed and analyses were performed on its inverse kinematics,velocity,and acceleration.Finally,the inverse dynamic analysis is presented by the principle of virtual work,and the validation of the analytical equations was compared by the ADAMS simulation software package.Additionally,according to the recorded experimental data of the HSB,the feasibility of the proposed novel parallel mechanism motion simulator of the HSB,as well as the necessity of using of the washout filters,was explored.展开更多
文章旨在了解南京地区临床研究协调员(clinical research coordinator,CRC)工作质量情况,了解其工作满意度,职业状况的影响因素,以减少离职率,稳定临床试验项目团队,为提高临床研究质量提供参考依据。在咨询专家和文献分析的基础上设计...文章旨在了解南京地区临床研究协调员(clinical research coordinator,CRC)工作质量情况,了解其工作满意度,职业状况的影响因素,以减少离职率,稳定临床试验项目团队,为提高临床研究质量提供参考依据。在咨询专家和文献分析的基础上设计问卷,对南京地区多家医院的184名CRC的工作质量进行在线调查,通过调查分析发现,CRC对工作量匹配、薪资待遇、晋升机会等工作满意度得分较低,存在较高的离职倾向,对临床试验质量有一定的影响。针对CRC的工作质量问题,需要法律法规方面明确定义、划分职能范畴,相关部门建立统一的培训考核机制、稳定的办公环境、合理的薪酬制度,进一步提升CRC的行业认可度。行政部门需采取有力措施,科学规范地培训和管理CRC;CRC也需要提升自我知识储备与工作能力,助推我国CRC行业规范化和职业化。展开更多
文摘In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recorded the motion parameters of the HSB by gyroscope and accelerometer sensors,while using a special data acquisition technique.Additionally,a Chebychev highpass filter was applied as a noise filter to the accelerometer sensor.Then,a novel 3 degrees of freedom(DoF)parallel mechanism(1T2R)with prismatic actuators is proposed and analyses were performed on its inverse kinematics,velocity,and acceleration.Finally,the inverse dynamic analysis is presented by the principle of virtual work,and the validation of the analytical equations was compared by the ADAMS simulation software package.Additionally,according to the recorded experimental data of the HSB,the feasibility of the proposed novel parallel mechanism motion simulator of the HSB,as well as the necessity of using of the washout filters,was explored.
文摘文章旨在了解南京地区临床研究协调员(clinical research coordinator,CRC)工作质量情况,了解其工作满意度,职业状况的影响因素,以减少离职率,稳定临床试验项目团队,为提高临床研究质量提供参考依据。在咨询专家和文献分析的基础上设计问卷,对南京地区多家医院的184名CRC的工作质量进行在线调查,通过调查分析发现,CRC对工作量匹配、薪资待遇、晋升机会等工作满意度得分较低,存在较高的离职倾向,对临床试验质量有一定的影响。针对CRC的工作质量问题,需要法律法规方面明确定义、划分职能范畴,相关部门建立统一的培训考核机制、稳定的办公环境、合理的薪酬制度,进一步提升CRC的行业认可度。行政部门需采取有力措施,科学规范地培训和管理CRC;CRC也需要提升自我知识储备与工作能力,助推我国CRC行业规范化和职业化。
