Debate over the benefits and harms of icing acute muscle injuries remains unresolved.Some contend that ice is ineffective or even harmful,while others promote cryotherapy as a universal remedy.Centrists,often academic...Debate over the benefits and harms of icing acute muscle injuries remains unresolved.Some contend that ice is ineffective or even harmful,while others promote cryotherapy as a universal remedy.Centrists,often academics,call for more high-quality randomized controlled trials(RCTs)to resolve the issue.This viewpoint reframes the debate around 3 key points:first,although ice produces analgesia,evidence for sustained pain relief,beyond the immediate post-treatment period.展开更多
IC10 alloy is a promising material for the applications of engine turbine blades.Fabricating and repairing of the turbine blades urgently need a sound joining technique for the IC10 alloy.The traditional transient liq...IC10 alloy is a promising material for the applications of engine turbine blades.Fabricating and repairing of the turbine blades urgently need a sound joining technique for the IC10 alloy.The traditional transient liquid phase(TLP)bonding method is difficult to achieve isothermal solidification,which tends to form brittle eutectic phases.In this study,a novel Al/BNi2 composite filler was designed.This new type of composite filler facilitates the diffusion of elements to completely dissolve or disperse the brittle eutectic structure of continuous large blocks in the TLP joint,thereby improving the room-temperature mechanical properties of the joint and increasing its average shear strength by 20%to 550 MPa.Effect of Al content and bonding temperature on microstructure and mechanical strength of the IC10/Al/BNi2/IC10 joint was investigated.Microstructure evolution mechanisms of the traditional TLP bonding method(with a pure BNi2 filler)and the novel TLP bonding method(with the Al/BNi2 composite filler)were put into comparison.The TLP joint of the new filler achieved a maximum room temperature shear strength of 570 MPa(3 wt.%Al,1100℃,2 h).展开更多
To address the challenges of complexity,power consumption,and cost constraints in traditional display driver integrated circuits(DDICs)caused by external NOR Flash and SRAM,this work proposes an embedded resistive ran...To address the challenges of complexity,power consumption,and cost constraints in traditional display driver integrated circuits(DDICs)caused by external NOR Flash and SRAM,this work proposes an embedded resistive random-access memory(RRAM)integration solution based on a 40 nm high-voltage CMOS logic platform.Targeting the yield fluctuations and stability challenges during RRAM mass production,systematic process optimizations are implemented to achieve synergistic improvements in RRAM performance and yield.Through modifications to the film sputtering and pre-deposition treatment,the withinwafer resistance uniformity(RSU)of the oxygen-deficient layer(ODL)thin film is improved from 11%to 8%,while inter-wafer process stability variation reduces from 23%to below 6%.Consequently,the yield of 8 Mb RRAM embedded mass production products increases from 87%to 98.5%.In terms of device performance,the RRAM demonstrates a fast 4.8 ns read speed,exceptional read disturb immunity of 3×10^(8) cycles at 95℃,10^(3) write/erase endurance cycles for the 1 Mb cells,and data retention of 12.5 years at 125℃.Post high-temperature operating life(HTOL)testing exhibits stable high/low resistance window.This study provides process optimization strategies and a reliability assurance framework for the mass production of highly integrated,low-power embedded RRAM display driver IC.展开更多
The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has dri...The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has driven a growing need for robust ICS security measures.Among the key defences,intrusion detection technology is critical in identifying threats to ICS networks.This paper provides an overview of the distinctive characteristics of ICS network security,highlighting standard attack methods.It then examines various intrusion detection methods,including those based on misuse detection,anomaly detection,machine learning,and specialised requirements.This paper concludes by exploring future directions for developing intrusion detection systems to advance research and ensure the continued security and reliability of ICS operations.展开更多
This paper studies thee convergence properties of multiplicative iterative algorithms with inexact line search. We prove that the convergence can be guaranteed for a general form of line search rille, under the assu...This paper studies thee convergence properties of multiplicative iterative algorithms with inexact line search. We prove that the convergence can be guaranteed for a general form of line search rille, under the assumption of convexity of objective function or the assumption of convergence of the sequence generated by the algorithm. This answers an open problem put forward by lusem.展开更多
文摘Debate over the benefits and harms of icing acute muscle injuries remains unresolved.Some contend that ice is ineffective or even harmful,while others promote cryotherapy as a universal remedy.Centrists,often academics,call for more high-quality randomized controlled trials(RCTs)to resolve the issue.This viewpoint reframes the debate around 3 key points:first,although ice produces analgesia,evidence for sustained pain relief,beyond the immediate post-treatment period.
基金funded by the National Natural Science Foundation of China(Grant No.U2167216,52504408,52475335)China Postdoctoral Science Foundation Funded Project(Grant No.2024M754181).
文摘IC10 alloy is a promising material for the applications of engine turbine blades.Fabricating and repairing of the turbine blades urgently need a sound joining technique for the IC10 alloy.The traditional transient liquid phase(TLP)bonding method is difficult to achieve isothermal solidification,which tends to form brittle eutectic phases.In this study,a novel Al/BNi2 composite filler was designed.This new type of composite filler facilitates the diffusion of elements to completely dissolve or disperse the brittle eutectic structure of continuous large blocks in the TLP joint,thereby improving the room-temperature mechanical properties of the joint and increasing its average shear strength by 20%to 550 MPa.Effect of Al content and bonding temperature on microstructure and mechanical strength of the IC10/Al/BNi2/IC10 joint was investigated.Microstructure evolution mechanisms of the traditional TLP bonding method(with a pure BNi2 filler)and the novel TLP bonding method(with the Al/BNi2 composite filler)were put into comparison.The TLP joint of the new filler achieved a maximum room temperature shear strength of 570 MPa(3 wt.%Al,1100℃,2 h).
文摘To address the challenges of complexity,power consumption,and cost constraints in traditional display driver integrated circuits(DDICs)caused by external NOR Flash and SRAM,this work proposes an embedded resistive random-access memory(RRAM)integration solution based on a 40 nm high-voltage CMOS logic platform.Targeting the yield fluctuations and stability challenges during RRAM mass production,systematic process optimizations are implemented to achieve synergistic improvements in RRAM performance and yield.Through modifications to the film sputtering and pre-deposition treatment,the withinwafer resistance uniformity(RSU)of the oxygen-deficient layer(ODL)thin film is improved from 11%to 8%,while inter-wafer process stability variation reduces from 23%to below 6%.Consequently,the yield of 8 Mb RRAM embedded mass production products increases from 87%to 98.5%.In terms of device performance,the RRAM demonstrates a fast 4.8 ns read speed,exceptional read disturb immunity of 3×10^(8) cycles at 95℃,10^(3) write/erase endurance cycles for the 1 Mb cells,and data retention of 12.5 years at 125℃.Post high-temperature operating life(HTOL)testing exhibits stable high/low resistance window.This study provides process optimization strategies and a reliability assurance framework for the mass production of highly integrated,low-power embedded RRAM display driver IC.
文摘The increasing interconnection of modern industrial control systems(ICSs)with the Internet has enhanced operational efficiency,but alsomade these systemsmore vulnerable to cyberattacks.This heightened exposure has driven a growing need for robust ICS security measures.Among the key defences,intrusion detection technology is critical in identifying threats to ICS networks.This paper provides an overview of the distinctive characteristics of ICS network security,highlighting standard attack methods.It then examines various intrusion detection methods,including those based on misuse detection,anomaly detection,machine learning,and specialised requirements.This paper concludes by exploring future directions for developing intrusion detection systems to advance research and ensure the continued security and reliability of ICS operations.
文摘This paper studies thee convergence properties of multiplicative iterative algorithms with inexact line search. We prove that the convergence can be guaranteed for a general form of line search rille, under the assumption of convexity of objective function or the assumption of convergence of the sequence generated by the algorithm. This answers an open problem put forward by lusem.
