All vessels and offshore units require regular inspections to prevent structural or functional damages. Periodical inspections are based on classification society＇s requirements and include both visual surveys and no...All vessels and offshore units require regular inspections to prevent structural or functional damages. Periodical inspections are based on classification society＇s requirements and include both visual surveys and non-destructive test interventions, to look for structural damage, pitting, corrosion, thickness measurement, usually documented by measurements or images. Different approaches of inspection can be proposed for underwater and for dry areas, using unmanned vehicles or service robots able to improve traditional inspection methods. Several excellent proposals are today available： nevertheless, reasons of costs, operation complexity and impossibility to cover all types of inspection with a unique autonomous unit limit and conditions the applicability of automatic inspection systems. The paper is the first of a series describing the main results of a wide research activity carried out at DREAMS Lab （Laboratory of Drives and Experimental Automation for Marine Systems） of the University of Genoa. The studies are oriented to the realization of a kit of low cost and unsophisticated self-moving units, devoted to support some recursive inspections in dry areas of ships and on offshore plants as bulkheads, holds, double bottoms and ducts. The paper describes the design and prototyping of a pneumatronic unit oriented to inspection and maintenance of ship holds. Conceived to realize a portable and user-friendly tool which could take part of an ＂inspection kit＂ for the use of inspectors, able to simplify and speed up the inspection visits with and automatic generation of survey reports.展开更多
目的探究眼动脱敏与再加工(Eye Movement Desensitization and Reprocessing,EMDR)对伴有非自杀性自伤(Non-Suicidal Self-Injury,NSSI)行为青少年抑郁症的干预效果。方法选取2020年6月~2021年9月我院收治的120例伴NSSI青少年抑郁症患者...目的探究眼动脱敏与再加工(Eye Movement Desensitization and Reprocessing,EMDR)对伴有非自杀性自伤(Non-Suicidal Self-Injury,NSSI)行为青少年抑郁症的干预效果。方法选取2020年6月~2021年9月我院收治的120例伴NSSI青少年抑郁症患者,根据治疗方案不同分成舍曲林组(58例,采用舍曲林治疗),联合组(62例,采用舍曲林联合EMDR治疗)。比较两组患者不同时间段的干预效果。结果联合组的临床有效率高于舍曲林组(P<0.05);两组青少年非自杀性自伤行为评定问卷、汉密尔顿抑郁量表、青少年生活事件量表、汉密尔顿焦虑量表评分比较:治疗前>治疗2周后>治疗4周后>治疗6周后,联合组<舍曲林组(P<0.05)。两组简易应对方式问卷评分、青少年社会支持量表评分比较:治疗前<治疗2周后<治疗4周后<治疗6周,联合组>舍曲林组(P<0.05)。结论舍曲林联合EMDR治疗可以促进患者心理状态改善,减轻NSSI严重程度,且不增加药物副反应的发生。展开更多
为了实现脑-计算机接口(Brain-computer interface,BCI)系统,对运动脑电信号的特征进行了提取和分类。将多路脑电信号进行CAR(Common average reference)滤波后,利用小波变换和AR参数模型提取特征并使用基于马氏距离的线性判别分析对运...为了实现脑-计算机接口(Brain-computer interface,BCI)系统,对运动脑电信号的特征进行了提取和分类。将多路脑电信号进行CAR(Common average reference)滤波后,利用小波变换和AR参数模型提取特征并使用基于马氏距离的线性判别分析对运动脑电信号进行分类。结果表明,该方法提取的特征向量较好地反应了脑电信号的事件相关去同步(Event-related desynchronization,ERD)和事件相关同步(Event-related synchronization,ERS)的变化时程,为BCI研究中脑电信号的模式识别提供了有效的手段。展开更多
文摘All vessels and offshore units require regular inspections to prevent structural or functional damages. Periodical inspections are based on classification society＇s requirements and include both visual surveys and non-destructive test interventions, to look for structural damage, pitting, corrosion, thickness measurement, usually documented by measurements or images. Different approaches of inspection can be proposed for underwater and for dry areas, using unmanned vehicles or service robots able to improve traditional inspection methods. Several excellent proposals are today available： nevertheless, reasons of costs, operation complexity and impossibility to cover all types of inspection with a unique autonomous unit limit and conditions the applicability of automatic inspection systems. The paper is the first of a series describing the main results of a wide research activity carried out at DREAMS Lab （Laboratory of Drives and Experimental Automation for Marine Systems） of the University of Genoa. The studies are oriented to the realization of a kit of low cost and unsophisticated self-moving units, devoted to support some recursive inspections in dry areas of ships and on offshore plants as bulkheads, holds, double bottoms and ducts. The paper describes the design and prototyping of a pneumatronic unit oriented to inspection and maintenance of ship holds. Conceived to realize a portable and user-friendly tool which could take part of an ＂inspection kit＂ for the use of inspectors, able to simplify and speed up the inspection visits with and automatic generation of survey reports.
文摘目的探究眼动脱敏与再加工(Eye Movement Desensitization and Reprocessing,EMDR)对伴有非自杀性自伤(Non-Suicidal Self-Injury,NSSI)行为青少年抑郁症的干预效果。方法选取2020年6月~2021年9月我院收治的120例伴NSSI青少年抑郁症患者,根据治疗方案不同分成舍曲林组(58例,采用舍曲林治疗),联合组(62例,采用舍曲林联合EMDR治疗)。比较两组患者不同时间段的干预效果。结果联合组的临床有效率高于舍曲林组(P<0.05);两组青少年非自杀性自伤行为评定问卷、汉密尔顿抑郁量表、青少年生活事件量表、汉密尔顿焦虑量表评分比较:治疗前>治疗2周后>治疗4周后>治疗6周后,联合组<舍曲林组(P<0.05)。两组简易应对方式问卷评分、青少年社会支持量表评分比较:治疗前<治疗2周后<治疗4周后<治疗6周,联合组>舍曲林组(P<0.05)。结论舍曲林联合EMDR治疗可以促进患者心理状态改善,减轻NSSI严重程度,且不增加药物副反应的发生。
