Self Healing Capacity of Asphalt Binders

To test self healing capability of asphalt binders,three asphalt specimens（pure asphalt,modified asphalt and aged asphalt） were prepared.Every specimen was tested by dynamic shear rheometer（DSR）.The temperature sweeps result indicates that both aging and SBS modifying influence the self healing capability of asphalt binder.The fatigue-heal-fatigue test was introduced to study the self healing capability of asphalt in its serving periods.Furthermore,three different periods（0.5 h,1 h,3 h） were set up to study the influence of rest time on fatigue time.It is concluded that longer rest time,less load will delay the appearance of cracks and extend the service life of asphalt binders.

Lama Gangchen and His Self Healing Therapy

When I came across Lama Gangchen in Nepalyears ago,he was then residing in Italy. He has agood command of Buddhist Tantric theory andpractice,as well as wide knowledge of Tibetanmedicine.He is also active in propagating Tibetan Buddhismand Tibetan medicine, especially in working to protect thepsychic environment and promote education and charityundertakings.For this purpose, he has visited more than 30countries and regions.

Durable Asphalt Pavements Are Self Healing

The traffic volume and the number of heavy vehicles are growing continuously. Considering the continuous traffic flow and the limited time available for road maintenance,it is very important to design a durable pavement system. Asphalt pavements with a healing capability are believed to be very useful since they can extend the pavement service life thanks to rest periods and hot summers. In order to design durable asphalt pavements,research in understanding and upgrading the self-healing capability of bituminous materials in time is of major importance. The self healing capability of bituminous mastic was evaluated in this research with a direct tension healing test. In the test program,different healing times,crack status and modifications were applied. The results indicate that elastic recovery and flow capacity are important factors for the self healing capability of bituminous materials at different crack phases as simulated with the direct tension test.

Performance Analysis of Cell Loss Probability Based on ATM Self-healing Multi-section-backup VP Scheme

Based on ATM Multi section backup VP self healing scheme, analysis of cell loss probability under finite buffer is made by use of queue system method. Optimal buffer size can be fixed on.

调控一体化下的配电网自愈研究

自愈是智能配网调控一体化最核心的内容。结合国内外智能配网建设实践,对智能配网调控一体化的概念和内容给出新定义,对配网自愈功能的含义、特征进行阐述。在此基础上提出自愈系统的一种分模块设计思路,对其实现方法进行了探讨。强调自愈控制系统在实现自愈过程中占据重要地位,对其按功能进行层次划分,并提出各层次如何分工协作实现控制。提出了评价配网自愈能力的参考指标项,包括自愈时间和自愈率等。指出在自愈控制系统中应用先进的电力电子技术是未来的发展方向。

养护条件对渗透结晶型防水涂料抗渗性和自修复性的影响

在不同养护条件下,对YJH渗透结晶型防水涂料的抗渗性能进行测试,结果表明YJH防水涂料早期的防水和抗渗性能指标与养护条件有很大关系,其中标准养护方法的性能最好;随着养护时间的延长,不同养护方法的试件性能基本上相同。

Recent progress in the development of smart supercapacitors

Recently,with the continuous development of human society and the continuous innovation of technologies,the intelligence era has arrived.Various intelligent electronic devices continue to be developed,in which flexible wearable electronic devices are highly favored by people.To meet the requirements of the normal operation of intelligent devices,the key point lies in the development of new smart energy storage devices.Accordingly,smart supercapacitors have been widely focused on and studied by researchers recently with the introduction of intelligent functions,such as electrochromism,self‐healing,and shape memory,into supercapacitors to broaden their application fields and promote their smart development.This can meet not only people's energy needs but also people's diverse personality needs and make our life more convenient,fast,and more intelligent than ever.Therefore,it is very important to summarize related work on smart supercapacitors.Although researchers have performed much research on smart supercapacitors,there is still little literature summary on the related work of different smart supercapacitors.Accordingly,this paper mainly introduces the research progress on electrochromic,self‐healing,shape memory,and self‐charging smart supercapacitors in recent years and discusses the development prospects and challenges of smart supercapacitors.

Dynamic polymeric materials based on reversible B–O bonds with dative boron–nitrogen coordination

To minimize the environmental pollution caused by polymeric waste,materials based dynamic chemistry have attracted extensive attention around the world.Various dynamic covalent bonds or noncovalent interactions have been employed to design multifunctional polymers with recyclability,reprocessablility,and sustainability.Among them,polymers based on reversible boron–oxygen(B–O)bonds have been widely investigated because of their unique properties.Particularly,lots of scientists have demonstrated that the combination with boron–nitrogen(B–N)coordination can effectively accelerate the dynamicity as well as enhance the stability of B–O bonds.Therefore,numerous polymers containing dynamic B–O bonds with dative B–N coordination have been designed and synthesized in recent years.These polymers exhibit excellent versatility and great potential for diverse applications such as biosensors,battery electrolytes,and artificial skins.This review provides an overview of the comprehensive influence of dynamic B–N coordination chemistry on B–O bonds in organoboron species and highlights the developments in the area of constructing boron‐containing polymeric materials with this interesting linkage.The design guidelines,existing challenges,and future perspectives in this burgeoning field are discussed and proposed.