目的 探究基于图片存档及通信系统(picture archiving and communication system,PACS)的翻转课堂教学在神经外科专科医师规范化培训(简称“专培”)实习中的效果。方法 选取2019年6月—2022年6月重庆医科大学附属永川医院60名在神经外...目的 探究基于图片存档及通信系统(picture archiving and communication system,PACS)的翻转课堂教学在神经外科专科医师规范化培训(简称“专培”)实习中的效果。方法 选取2019年6月—2022年6月重庆医科大学附属永川医院60名在神经外科实习的专培生,随机分为观察组和对照组,各30名。其中对照组采用常规传统教学法,观察组采用基于PACS系统的翻转课堂教学法。评估两组专培生实习期间出科考试成绩以及教改实践效果。结果 观察组理论考试成绩、实践技能成绩、综合测评总成绩均高于对照组,差异有统计学意义(P <0.05)。观察组提高学习效率、提升自学能力、促进实习参与意识、增进临床思维能力、提高信息获取能力、提高学习效率、提高临床实践技能均优于对照组,差异有统计学意义(P<0.05)。结论 将基于PACS系统的翻转课堂应用于神经外科专培生的实习中,可有效激发专培生的自主学习能力,提高出科考试成绩,同时提升专培生的实践教学效果,为临床培育更优秀的神经外科医生。展开更多
目的探究在开展肾病内科实习教学的过程中按照医学图像存储与传输系统(picture archiving and communication system,PACS)联合网络多媒体教学法进行教学的价值。方法选取2020年2月—2022年8月苏州大学附属第二医院肾病内科60名实习医...目的探究在开展肾病内科实习教学的过程中按照医学图像存储与传输系统(picture archiving and communication system,PACS)联合网络多媒体教学法进行教学的价值。方法选取2020年2月—2022年8月苏州大学附属第二医院肾病内科60名实习医生为研究对象,随机分为对照组(30名,按照常规方式进行教学)和观察组(30名,按照PACS联合网络多媒体教学法进行教学)。针对2组教学效果进行评估。结果对比2组实习医生考核成绩,在教学前2组理论知识水平、实践操作能力、病例书写、体格检查考核差异无统计学意义(P>0.05)。教学后,观察组理论知识水平、实践操作能力、病例书写、体格检查考核考核成绩[(93.53±2.05)分;(93.63±2.11)分;(94.45±2.05)分;(94.36±2.32)分]高于对照组[(88.45±2.15)分;(88.64±1.78)分;(89.45±1.68)分;(86.14±1.48)分],差异有统计学意义(P<0.05)。对比2组实习医生对教学方式评价,在提升临床思维、提升学习兴趣、提升自学能力、降低理论知识理解难度方面评分,观察组均高于对照组,(P<0.05)。对比2组教学满意度,观察组高于对照组,(P<0.05)。结论在进行肾病内科实习教学的过程中开展PACS联合网络多媒体教学法,可以有效提升该方面教学质量,有助于实习医生对各方面专业知识进行掌握和运用,并增加教学满意度。展开更多
This work investigated the pyrolysis reaction of waste resin in a fluidized bed reactor.It was found that the pyrolysis-generated ash would adhere to the surface of ceramic particles,causing particle agglomeration and...This work investigated the pyrolysis reaction of waste resin in a fluidized bed reactor.It was found that the pyrolysis-generated ash would adhere to the surface of ceramic particles,causing particle agglomeration and defluidization.Adding kaolin could effectively inhibit the particle agglomeration during the fluidized pyrolysis reaction through physical isolation and chemical reaction.On the one hand,kaolin could form a coating layer on the surface of ceramic particles to prevent the adhesion of organic ash generated by the pyrolysis of resin.On the other hand,when a sufficient amount of kaolin(-0.2%(mass))was added,the activated kaolin could fully contact with the Na+ ions generated by the pyrolysis of resin and react to form a high-melting aluminosilicate mineral(nepheline),which could reduce the formation of low-melting-point sodium sulfate and thereby avoid the agglomeration of ceramic particles.展开更多
目的在影像归档和通信系统(Picture Archiving and Communication System,PACS)数据库文件丢失或损坏后,实现影像资料和PDF报告关键信息的快速识别和重组,供患者回诊使用。方法利用基于深度学习的光学字符识别技术和Pydicom技术分别读取...目的在影像归档和通信系统(Picture Archiving and Communication System,PACS)数据库文件丢失或损坏后,实现影像资料和PDF报告关键信息的快速识别和重组,供患者回诊使用。方法利用基于深度学习的光学字符识别技术和Pydicom技术分别读取PDF和DCOM文件中的基本信息,重新建立起患者、影像、报告三者之间的联系,并将关联数据写入数据库。结果经抽样验证,该方法识别同类图像精度的准确度、精准度及召回率均为100%,综合指标F1值为1,在不同组别独立样本间的识别精度表现出一致性。平均每份报告识别时间约为0.14 s(t=-1.005,P=0.315),说明不同组别独立样本间的识别时间表现出一致性。结论该方法的使用能有效缩短数据库故障后患者等待时长,能够在短时间内恢复医疗秩序,可用于PACS数据库数据丢失后的应急处置,也为PACS的数据整合提供依据,为医学影像数据恢复和数据整合提供一种新思路。展开更多
In this study,the durability of a new polymer carbonfiber-reinforced epoxy resin used to produce composite material in the aerospacefield is investigated through analysis of the corrosion phenomena occurring at the micr...In this study,the durability of a new polymer carbonfiber-reinforced epoxy resin used to produce composite material in the aerospacefield is investigated through analysis of the corrosion phenomena occurring at the microscopic scale,and the related infrared spectra and thermal properties.It is found that light and heat can con-tribute to the aging process.In particular,the longitudinal tensile strength displays a non-monotonic trend,i.e.,itfirst increases and then decreases over time.By contrast,the longitudinal compressive and inter-laminar shear strengths do not show significant changes.It is also shown that the inter-laminar shear strength of carbonfiber/epoxy resin composites with inter-laminar hybrid structure is better than that of pure carbonfiber materials.The related resistance to corrosion can be improved by more than 41%.展开更多
Benzoxazine resin,being a new type of phenolic resin deve-loped to overcome the shortcomings of traditional phenolic resins,has been synthesized from phenol,formaldehyde and amine,and does not require solvent eliminat...Benzoxazine resin,being a new type of phenolic resin deve-loped to overcome the shortcomings of traditional phenolic resins,has been synthesized from phenol,formaldehyde and amine,and does not require solvent elimination or monomer purification to obtain a relatively clean precursor.It has potential application in the field of aerospace due to its low expansion coefficient,high weather resistance,high carbon yield,good mechanical strength,and excellent ablation resistance[1].It can be mixed with various other resins or polymers to produce new resins with a broad range of applications[2-3].展开更多
文摘目的 探究基于图片存档及通信系统(picture archiving and communication system,PACS)的翻转课堂教学在神经外科专科医师规范化培训(简称“专培”)实习中的效果。方法 选取2019年6月—2022年6月重庆医科大学附属永川医院60名在神经外科实习的专培生,随机分为观察组和对照组,各30名。其中对照组采用常规传统教学法,观察组采用基于PACS系统的翻转课堂教学法。评估两组专培生实习期间出科考试成绩以及教改实践效果。结果 观察组理论考试成绩、实践技能成绩、综合测评总成绩均高于对照组,差异有统计学意义(P <0.05)。观察组提高学习效率、提升自学能力、促进实习参与意识、增进临床思维能力、提高信息获取能力、提高学习效率、提高临床实践技能均优于对照组,差异有统计学意义(P<0.05)。结论 将基于PACS系统的翻转课堂应用于神经外科专培生的实习中,可有效激发专培生的自主学习能力,提高出科考试成绩,同时提升专培生的实践教学效果,为临床培育更优秀的神经外科医生。
文摘目的探究在开展肾病内科实习教学的过程中按照医学图像存储与传输系统(picture archiving and communication system,PACS)联合网络多媒体教学法进行教学的价值。方法选取2020年2月—2022年8月苏州大学附属第二医院肾病内科60名实习医生为研究对象,随机分为对照组(30名,按照常规方式进行教学)和观察组(30名,按照PACS联合网络多媒体教学法进行教学)。针对2组教学效果进行评估。结果对比2组实习医生考核成绩,在教学前2组理论知识水平、实践操作能力、病例书写、体格检查考核差异无统计学意义(P>0.05)。教学后,观察组理论知识水平、实践操作能力、病例书写、体格检查考核考核成绩[(93.53±2.05)分;(93.63±2.11)分;(94.45±2.05)分;(94.36±2.32)分]高于对照组[(88.45±2.15)分;(88.64±1.78)分;(89.45±1.68)分;(86.14±1.48)分],差异有统计学意义(P<0.05)。对比2组实习医生对教学方式评价,在提升临床思维、提升学习兴趣、提升自学能力、降低理论知识理解难度方面评分,观察组均高于对照组,(P<0.05)。对比2组教学满意度,观察组高于对照组,(P<0.05)。结论在进行肾病内科实习教学的过程中开展PACS联合网络多媒体教学法,可以有效提升该方面教学质量,有助于实习医生对各方面专业知识进行掌握和运用,并增加教学满意度。
基金support and encouragement of the Joint Funds of the National Natural Science Foundation of China(No.U21B2095)the Major Research Project of National Natural Science Foundation of China(No.91834303).
文摘This work investigated the pyrolysis reaction of waste resin in a fluidized bed reactor.It was found that the pyrolysis-generated ash would adhere to the surface of ceramic particles,causing particle agglomeration and defluidization.Adding kaolin could effectively inhibit the particle agglomeration during the fluidized pyrolysis reaction through physical isolation and chemical reaction.On the one hand,kaolin could form a coating layer on the surface of ceramic particles to prevent the adhesion of organic ash generated by the pyrolysis of resin.On the other hand,when a sufficient amount of kaolin(-0.2%(mass))was added,the activated kaolin could fully contact with the Na+ ions generated by the pyrolysis of resin and react to form a high-melting aluminosilicate mineral(nepheline),which could reduce the formation of low-melting-point sodium sulfate and thereby avoid the agglomeration of ceramic particles.
文摘目的在影像归档和通信系统(Picture Archiving and Communication System,PACS)数据库文件丢失或损坏后,实现影像资料和PDF报告关键信息的快速识别和重组,供患者回诊使用。方法利用基于深度学习的光学字符识别技术和Pydicom技术分别读取PDF和DCOM文件中的基本信息,重新建立起患者、影像、报告三者之间的联系,并将关联数据写入数据库。结果经抽样验证,该方法识别同类图像精度的准确度、精准度及召回率均为100%,综合指标F1值为1,在不同组别独立样本间的识别精度表现出一致性。平均每份报告识别时间约为0.14 s(t=-1.005,P=0.315),说明不同组别独立样本间的识别时间表现出一致性。结论该方法的使用能有效缩短数据库故障后患者等待时长,能够在短时间内恢复医疗秩序,可用于PACS数据库数据丢失后的应急处置,也为PACS的数据整合提供依据,为医学影像数据恢复和数据整合提供一种新思路。
文摘In this study,the durability of a new polymer carbonfiber-reinforced epoxy resin used to produce composite material in the aerospacefield is investigated through analysis of the corrosion phenomena occurring at the microscopic scale,and the related infrared spectra and thermal properties.It is found that light and heat can con-tribute to the aging process.In particular,the longitudinal tensile strength displays a non-monotonic trend,i.e.,itfirst increases and then decreases over time.By contrast,the longitudinal compressive and inter-laminar shear strengths do not show significant changes.It is also shown that the inter-laminar shear strength of carbonfiber/epoxy resin composites with inter-laminar hybrid structure is better than that of pure carbonfiber materials.The related resistance to corrosion can be improved by more than 41%.
基金Supported by Shanghai Aerospace Science and Technology Innovation Fund Project (SAST 2022-097)。
文摘Benzoxazine resin,being a new type of phenolic resin deve-loped to overcome the shortcomings of traditional phenolic resins,has been synthesized from phenol,formaldehyde and amine,and does not require solvent elimination or monomer purification to obtain a relatively clean precursor.It has potential application in the field of aerospace due to its low expansion coefficient,high weather resistance,high carbon yield,good mechanical strength,and excellent ablation resistance[1].It can be mixed with various other resins or polymers to produce new resins with a broad range of applications[2-3].
