The ultimate strength of platings under compression is one of the most important factors to be addressed in the ship design.Current Rules for ship structural design generally provide explicit strength check criteria a...The ultimate strength of platings under compression is one of the most important factors to be addressed in the ship design.Current Rules for ship structural design generally provide explicit strength check criteria against buckling for simply supported and clamped platings.Nevertheless,ship platings generally exhibit an intermediate behaviour between the simple support and the clamped conditions,which implies that the torsional stiffness of supporting members should be duly considered.Hence,the main aim of this study is the development of new design formulas for the ultimate strength of platings under uniaxial compression,with short and/or long edges elastically restrained against torsion.In this respect,two benchmark studies are performed.The former is devoted to the development of new equations for the elastic buckling coefficients of platings with edges elastically restrained against torsion,based on the results of the eigenvalue buckling analysis,performed by Ansys Mechanical APDL.The latter investigates the ultimate strength of platings with elastically restrained edges,by systematically varying the plate slenderness ratio and the torsional stiffness of supporting members.Finally,the effectiveness of the new formulation is checked against a wide number of finite element(FE)simulations,to cover the entire design space of ship platings.展开更多
目的探讨急诊重症监护室(emergency intensive care unit,EICU)住院患者家属创伤后成长的影响因素及其与社会支持水平的相关性。方法选择2020年6月—2023年6月南通大学附属医院EICU 80名住院患者的家属作为研究对象。采用创伤后成长评...目的探讨急诊重症监护室(emergency intensive care unit,EICU)住院患者家属创伤后成长的影响因素及其与社会支持水平的相关性。方法选择2020年6月—2023年6月南通大学附属医院EICU 80名住院患者的家属作为研究对象。采用创伤后成长评定量表以及社会支持评定量表评价EICU住院患者家属创伤后成长水平及社会支持水平。分析患者家属创伤后成长水平与社会支持水平的相关性,并对患者家属创伤后成长水平的影响因素进行单因素、多因素logistic回归分析。结果80名EICU住院患者家属创伤后成长水平评分为(60.53±13.02)分,其中得分最高维度为与他人关系,其次为个人力量。经单因素分析可见,患者家属不同性别、学历、与患者关系、急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)评分的创伤后成长水平评分比较,差异有统计学意义(P<0.05)。家属社会支持水平评分均低于国内常模(P<0.05)。经Pearson相关性分析,EICU住院患者家属创伤后成长水平与社会支持水平呈正相关(P<0.05)。经多因素分析可见,性别、学历、患者APACHEⅡ评分与社会支持水平是ICU住院患者家属创伤后成长的独立影响因素(P<0.05)。结论性别、学历、患者APACHEⅡ评分与社会支持水平是EICU住院患者家属创伤后成长的影响因素,临床应增强对患者家属关注度,积极鼓励家属缓解负面情绪,提升创伤后成长水平。展开更多
目的:探究呼吸衰竭患者重症加强护理病房(Intensive Care Unit,ICU)期间家属疾病不确定感现状及其相关影响因素。方法:选取2022年2月—2023年4月莆田学院附属医院收治的86例呼吸衰竭患者ICU期间家属作为研究对象,采用中文版疾病不确定...目的:探究呼吸衰竭患者重症加强护理病房(Intensive Care Unit,ICU)期间家属疾病不确定感现状及其相关影响因素。方法:选取2022年2月—2023年4月莆田学院附属医院收治的86例呼吸衰竭患者ICU期间家属作为研究对象,采用中文版疾病不确定感家属量表(mishel uncertainty in illness scale-family member form,MUIS-FM)评估疾病不确定感,并收集相关资料,比较不同特征呼吸衰竭患者ICU期间家属MUIS-FM评分,分析此类疾病家属疾病不确定感的影响因素。结果:86例呼吸衰竭患者ICU期间家属MUIS-FM评分为(97.15±9.72)分,有较高的疾病不确定感。不同家庭人均月收入、患者入住ICU时间、是否认同ICU无陪制度、社会支持度呼吸衰竭患者ICU期间家属MUIS-FM评分比较,差异有统计学意义(P<0.05)。经线性回归分析显示,家庭人均月收入<5000元、患者入住ICU时间≥7 d、不认同ICU无陪制度、社会支持度低水平是呼吸衰竭患者ICU期间家属疾病不确定感较高的危险因素(P<0.05)。结论:呼吸衰竭患者ICU期间家属疾病不确定感为较高水平,家庭人均月收入<5000元、患者入住ICU时间≥7 d、不认同ICU无陪制度、社会支持度低水平是患者家属疾病不确定感较高的危险因素。展开更多
文摘The ultimate strength of platings under compression is one of the most important factors to be addressed in the ship design.Current Rules for ship structural design generally provide explicit strength check criteria against buckling for simply supported and clamped platings.Nevertheless,ship platings generally exhibit an intermediate behaviour between the simple support and the clamped conditions,which implies that the torsional stiffness of supporting members should be duly considered.Hence,the main aim of this study is the development of new design formulas for the ultimate strength of platings under uniaxial compression,with short and/or long edges elastically restrained against torsion.In this respect,two benchmark studies are performed.The former is devoted to the development of new equations for the elastic buckling coefficients of platings with edges elastically restrained against torsion,based on the results of the eigenvalue buckling analysis,performed by Ansys Mechanical APDL.The latter investigates the ultimate strength of platings with elastically restrained edges,by systematically varying the plate slenderness ratio and the torsional stiffness of supporting members.Finally,the effectiveness of the new formulation is checked against a wide number of finite element(FE)simulations,to cover the entire design space of ship platings.
文摘目的探讨急诊重症监护室(emergency intensive care unit,EICU)住院患者家属创伤后成长的影响因素及其与社会支持水平的相关性。方法选择2020年6月—2023年6月南通大学附属医院EICU 80名住院患者的家属作为研究对象。采用创伤后成长评定量表以及社会支持评定量表评价EICU住院患者家属创伤后成长水平及社会支持水平。分析患者家属创伤后成长水平与社会支持水平的相关性,并对患者家属创伤后成长水平的影响因素进行单因素、多因素logistic回归分析。结果80名EICU住院患者家属创伤后成长水平评分为(60.53±13.02)分,其中得分最高维度为与他人关系,其次为个人力量。经单因素分析可见,患者家属不同性别、学历、与患者关系、急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)评分的创伤后成长水平评分比较,差异有统计学意义(P<0.05)。家属社会支持水平评分均低于国内常模(P<0.05)。经Pearson相关性分析,EICU住院患者家属创伤后成长水平与社会支持水平呈正相关(P<0.05)。经多因素分析可见,性别、学历、患者APACHEⅡ评分与社会支持水平是ICU住院患者家属创伤后成长的独立影响因素(P<0.05)。结论性别、学历、患者APACHEⅡ评分与社会支持水平是EICU住院患者家属创伤后成长的影响因素,临床应增强对患者家属关注度,积极鼓励家属缓解负面情绪,提升创伤后成长水平。
文摘目的:探究呼吸衰竭患者重症加强护理病房(Intensive Care Unit,ICU)期间家属疾病不确定感现状及其相关影响因素。方法:选取2022年2月—2023年4月莆田学院附属医院收治的86例呼吸衰竭患者ICU期间家属作为研究对象,采用中文版疾病不确定感家属量表(mishel uncertainty in illness scale-family member form,MUIS-FM)评估疾病不确定感,并收集相关资料,比较不同特征呼吸衰竭患者ICU期间家属MUIS-FM评分,分析此类疾病家属疾病不确定感的影响因素。结果:86例呼吸衰竭患者ICU期间家属MUIS-FM评分为(97.15±9.72)分,有较高的疾病不确定感。不同家庭人均月收入、患者入住ICU时间、是否认同ICU无陪制度、社会支持度呼吸衰竭患者ICU期间家属MUIS-FM评分比较,差异有统计学意义(P<0.05)。经线性回归分析显示,家庭人均月收入<5000元、患者入住ICU时间≥7 d、不认同ICU无陪制度、社会支持度低水平是呼吸衰竭患者ICU期间家属疾病不确定感较高的危险因素(P<0.05)。结论:呼吸衰竭患者ICU期间家属疾病不确定感为较高水平,家庭人均月收入<5000元、患者入住ICU时间≥7 d、不认同ICU无陪制度、社会支持度低水平是患者家属疾病不确定感较高的危险因素。
