Integrating construction and reconstruction of highly conductive structures into one process is of great interest in developing and manufacturing of electronics,but it is quite challenging because these two involve co...Integrating construction and reconstruction of highly conductive structures into one process is of great interest in developing and manufacturing of electronics,but it is quite challenging because these two involve contradictive additive and subtractive processes.In this work,we report an all-laser mask-less processing technology that integrates manufacturing,modifying,and restoring of highly conductive Cu structures.By traveling a focused laser,the Cu patterns can be fabricated on the flexible substrate,while these as-written patterns can be selectively erased by changing the laser to a defocused state.Subsequently,the fresh patterns with identical conductivity and stability can be rewritten by repeating the writing step.Further,this erasing–rewriting process is also capable of repairing failure patterns,such as oxidation and cracking.Owing to the high controllability of this writing–erasing–rewriting process and its excellent reproducibility for conductive structures,it opens a new avenue for rapid healing and prototyping of electronics.展开更多
CAI Ling, 41, can now speak openly about her life. But a decade ago, the woman with HIV was always guarded and kept her status firmly under wraps."I can sense a gradua ook at me and my son," change in how people sai...CAI Ling, 41, can now speak openly about her life. But a decade ago, the woman with HIV was always guarded and kept her status firmly under wraps."I can sense a gradua ook at me and my son," change in how people said the Beijing shopping mall cleaner, "But 10 years ago, or even five, I would rather have died than let people around me know I was HIV positive."展开更多
The problem of art forgery and infringement is becoming increasingly prominent,since diverse self-media contents with all kinds of art pieces are released on the Internet every day.For art paintings,object detection a...The problem of art forgery and infringement is becoming increasingly prominent,since diverse self-media contents with all kinds of art pieces are released on the Internet every day.For art paintings,object detection and localization provide an efficient and ef-fective means of art authentication and copyright protection.However,the acquisition of a precise detector requires large amounts of ex-pensive pixel-level annotations.To alleviate this,we propose a novel weakly supervised object localization(WSOL)with background su-perposition erasing(BSE),which recognizes objects with inexpensive image-level labels.First,integrated adversarial erasing(IAE)for vanilla convolutional neural network(CNN)dropouts the most discriminative region by leveraging high-level semantic information.Second,a background suppression module(BSM)limits the activation area of the IAE to the object region through a self-guidance mechanism.Finally,in the inference phase,we utilize the refined importance map(RIM)of middle features to obtain class-agnostic loc-alization results.Extensive experiments are conducted on paintings,CUB-200-2011 and ILSVRC to validate the effectiveness of our BSE.展开更多
目的对加速康复外科(enhanced recovery after surgery,ERAS)理念在3D腹腔镜胃癌根治术护理中的应用效果进行分析。方法将2019年1月—2020年10月期间在钟祥市人民医院采用3D腹腔镜胃癌根治术治疗的60例胃癌患者作为研究对象,将患者随机...目的对加速康复外科(enhanced recovery after surgery,ERAS)理念在3D腹腔镜胃癌根治术护理中的应用效果进行分析。方法将2019年1月—2020年10月期间在钟祥市人民医院采用3D腹腔镜胃癌根治术治疗的60例胃癌患者作为研究对象,将患者随机分为观察组及对照组,各30例。观察组行ERAS理念护理,对照组行常规护理,比较2组患者最终护理结果。结果护理后,观察组临床指标(尿管拔管时间、术后排气时间、下床活动时间、进食时间、住院时间)均优于对照组,差异有统计学意义(P<0.05)。护理后,观察组疼痛评分比对照组患者低,差异有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,差异有统计学意义(P<0.05)。结论对3D腹腔镜胃癌根治术治疗的患者采用ERAS理念进行护理管理,可以有效缓解相关症状,减少不良反应发生,降低疼痛评分,建议临床上推广。展开更多
基金The authors acknowledge financial support from the National Key R&D Program of China(2017YFB1104900)the National Natural Science Foundation of China(51975033)+1 种基金the Beijing Natural Science Foundation(3192020)P.P.acknowledges support from NSERC discovery grant.X.Z.thanks Z.H.(College of Chemistry and Materials Science,Northwest University)for his support on XPS testing and analyzing.
文摘Integrating construction and reconstruction of highly conductive structures into one process is of great interest in developing and manufacturing of electronics,but it is quite challenging because these two involve contradictive additive and subtractive processes.In this work,we report an all-laser mask-less processing technology that integrates manufacturing,modifying,and restoring of highly conductive Cu structures.By traveling a focused laser,the Cu patterns can be fabricated on the flexible substrate,while these as-written patterns can be selectively erased by changing the laser to a defocused state.Subsequently,the fresh patterns with identical conductivity and stability can be rewritten by repeating the writing step.Further,this erasing–rewriting process is also capable of repairing failure patterns,such as oxidation and cracking.Owing to the high controllability of this writing–erasing–rewriting process and its excellent reproducibility for conductive structures,it opens a new avenue for rapid healing and prototyping of electronics.
文摘CAI Ling, 41, can now speak openly about her life. But a decade ago, the woman with HIV was always guarded and kept her status firmly under wraps."I can sense a gradua ook at me and my son," change in how people said the Beijing shopping mall cleaner, "But 10 years ago, or even five, I would rather have died than let people around me know I was HIV positive."
基金This work was supported in part by Guangdong Provincial Key Laboratory of Artificial Intelligence in Medical Image Analysis and Application,China(No.2022B1212010011).
文摘The problem of art forgery and infringement is becoming increasingly prominent,since diverse self-media contents with all kinds of art pieces are released on the Internet every day.For art paintings,object detection and localization provide an efficient and ef-fective means of art authentication and copyright protection.However,the acquisition of a precise detector requires large amounts of ex-pensive pixel-level annotations.To alleviate this,we propose a novel weakly supervised object localization(WSOL)with background su-perposition erasing(BSE),which recognizes objects with inexpensive image-level labels.First,integrated adversarial erasing(IAE)for vanilla convolutional neural network(CNN)dropouts the most discriminative region by leveraging high-level semantic information.Second,a background suppression module(BSM)limits the activation area of the IAE to the object region through a self-guidance mechanism.Finally,in the inference phase,we utilize the refined importance map(RIM)of middle features to obtain class-agnostic loc-alization results.Extensive experiments are conducted on paintings,CUB-200-2011 and ILSVRC to validate the effectiveness of our BSE.
文摘目的对加速康复外科(enhanced recovery after surgery,ERAS)理念在3D腹腔镜胃癌根治术护理中的应用效果进行分析。方法将2019年1月—2020年10月期间在钟祥市人民医院采用3D腹腔镜胃癌根治术治疗的60例胃癌患者作为研究对象,将患者随机分为观察组及对照组,各30例。观察组行ERAS理念护理,对照组行常规护理,比较2组患者最终护理结果。结果护理后,观察组临床指标(尿管拔管时间、术后排气时间、下床活动时间、进食时间、住院时间)均优于对照组,差异有统计学意义(P<0.05)。护理后,观察组疼痛评分比对照组患者低,差异有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,差异有统计学意义(P<0.05)。结论对3D腹腔镜胃癌根治术治疗的患者采用ERAS理念进行护理管理,可以有效缓解相关症状,减少不良反应发生,降低疼痛评分,建议临床上推广。