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大理国写经《诸佛菩萨金刚等启请》中“灯请十王斋掷延寿命火食次第”及段前残文的缀合研究 被引量:1
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作者 黄璜 《云南民族大学学报(哲学社会科学版)》 北大核心 2017年第1期154-160,共7页
云南省图藏大理国写经《诸佛菩萨金刚等启请》残叶五张。其中一张残叶中抄有残文一段以及"灯请十王斋掷延寿命火食次第"。通过对其录文、整理发现,二者实际上都与"十王斋"相关,因此当同属一系,应缀合起来研究。据此... 云南省图藏大理国写经《诸佛菩萨金刚等启请》残叶五张。其中一张残叶中抄有残文一段以及"灯请十王斋掷延寿命火食次第"。通过对其录文、整理发现,二者实际上都与"十王斋"相关,因此当同属一系,应缀合起来研究。据此,对比唐宋之际的相关经典和彼时业已完善的水陆道场仪,可以窥知残文和该次第实际上是配合水陆法会使用的仪式文本;具体讲二者是属于荐亡(延寿命)法会中的仪式,即在"十王斋"内,设法作会,在追荐亡灵的同时,又可为生人"延寿命",其中施饿鬼荐亡和为生人"延寿命"的斋意,圆融一体,并行不悖。 展开更多
关键词 仪式 荐亡 延寿命 灯请十王斋 水陆法会
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Data Aggregation Scheduling with Guaranteed Lifetime and Efficient Latency in Wireless Sensor Networks 被引量:4
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作者 Chen Zhengyu Yang Geng +3 位作者 Chen Lei Xu Jian Wang Haiyong Yang Zhen 《China Communications》 SCIE CSCD 2012年第9期11-21,共11页
In scenarios of real-time data collection of long-term deployed Wireless Sensor Networks (WSNs), low-latency data collection with long net- work lifetime becomes a key issue. In this paper, we present a data aggrega... In scenarios of real-time data collection of long-term deployed Wireless Sensor Networks (WSNs), low-latency data collection with long net- work lifetime becomes a key issue. In this paper, we present a data aggregation scheduling with guaran- teed lifetime and efficient latency in WSNs. We first Construct a Guaranteed Lifetime Mininmm Ra- dius Data Aggregation Tree (GLMRDAT) which is conducive to reduce scheduling latency while pro- viding a guaranteed network lifetime, and then de-sign a Greedy Scheduling algorithM (GSM) based on finding the nmzximum independent set in conflict graph to schedule he transmission of nodes in the aggregation tree. Finally, simulations show that our proposed approach not only outperfonm the state-of-the-art solutions in terms of schedule latency, but also provides longer and guaranteed network lifetilre. 展开更多
关键词 WSNs data aggregation aggregationscheduling network lifetime LATENCY
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Energy-balanced clustering protocol for data gathering in wireless sensor networks with unbalanced traffic load 被引量:1
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作者 奎晓燕 王建新 张士庚 《Journal of Central South University》 SCIE EI CAS 2012年第11期3180-3187,共8页
Energy-efficient data gathering in multi-hop wireless sensor networks was studied,considering that different node produces different amounts of data in realistic environments.A novel dominating set based clustering pr... Energy-efficient data gathering in multi-hop wireless sensor networks was studied,considering that different node produces different amounts of data in realistic environments.A novel dominating set based clustering protocol (DSCP) was proposed to solve the data gathering problem in this scenario.In DSCP,a node evaluates the potential lifetime of the network (from its local point of view) assuming that it acts as the cluster head,and claims to be a tentative cluster head if it maximizes the potential lifetime.When evaluating the potential lifetime of the network,a node considers not only its remaining energy,but also other factors including its traffic load,the number of its neighbors,and the traffic loads of its neighbors.A tentative cluster head becomes a final cluster head with a probability inversely proportional to the number of tentative cluster heads that cover its neighbors.The protocol can terminate in O(n/lg n) steps,and its total message complexity is O(n2/lg n).Simulation results show that DSCP can effectively prolong the lifetime of the network in multi-hop networks with unbalanced traffic load.Compared with EECT,the network lifetime is prolonged by 56.6% in average. 展开更多
关键词 ENERGY-BALANCE CLUSTERING data gathering wireless sensor networks unbalanced traffic load
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Longevity,Capital Formation and Economic Development 被引量:1
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作者 Zhang Qiong 1.School of Economics,Central University of Finance and Economics,Beijing 200084,China 2.School of Economics and Management,Tsinghua University,Beijing 100084 China 《Chinese Journal of Population,Resources and Environment》 2012年第1期53-63,共11页
Many researchers have concluded that longer life expectancies prompt increased investment in education,as a prolonged labor supply raises the rate of return on education.Besides explaining the empirical evidence behin... Many researchers have concluded that longer life expectancies prompt increased investment in education,as a prolonged labor supply raises the rate of return on education.Besides explaining the empirical evidence behind this conclusion(at an absolute level),there is another issue to be discussed:does time spent studying and working increase proportionally with higher longevity? Building on an extended life-cycle model,this paper shows that prolonged life expectancy will cause individuals to increase their time in education but may not warrant rises in labor input.Later we show that higher improvement rate of longevity rather than initial life expectancy will promote economic growth,even we exclude the mechanism of human capital formation,and only consider growth effects of higher improvement rate of life expectancy from physical capital investment. 展开更多
关键词 LONGEVITY EDUCATION labor supply economic development
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Issues of an Ageing Population in European Union
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作者 Peter Cajka 《Journal of Environmental Science and Engineering(B)》 2012年第8期966-970,共5页
One of the main contemporary problems requiring urgent attention since its present and future repercussions on particular countries is the decrease of population and related problems of population ageing. The populati... One of the main contemporary problems requiring urgent attention since its present and future repercussions on particular countries is the decrease of population and related problems of population ageing. The population ageing is not a worldwide problem yet, it concerns mostly world developed countries. On the other hand, it is a known fact that the population ageing in developing countries will culminate in few decades and will be more dramatic as the current population ageing in the developed world. In the developed countries, the population ageing is cause by the prolonged human life and the decrease of natality. This trend is resulting from many factors that are related to the modernization of the society which caused the decrease in fertility and natality. The health care improvement resulted in the prolonged life expectancy and a better health condition of the population. The science advance prolonged the average life expectancy which is the main reason for the population ageing. 展开更多
关键词 Ageing population PENSION demographic growth/decline.
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Life Extending Control of Helicopter Based on Dynamic Inversion
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作者 刘晶 吴爱国 《Transactions of Tianjin University》 EI CAS 2014年第3期215-222,共8页
The purpose of using life extending control for Black Hawk UH-60 helicopter is to make a trade-off between the handling qualities and the service life of critical components. An increase in service life span results i... The purpose of using life extending control for Black Hawk UH-60 helicopter is to make a trade-off between the handling qualities and the service life of critical components. An increase in service life span results in enhanced safety and the reduction in maintenance costs. This paper presents a design methodology of life extending control for structural durability and high performance of mechanical system, which is based on an explicit dynamic inversion control scheme. A real-time nonlinear fatigue crack growth model is built to predict fatigue damage resulting from the impact of cyclic bending stress on rotor shaft, which serves as an indicator of service life. The 4-axis gainscheduled flight controller, whose gains are adjusted as a function of damage and flight velocity, is designed to regulate roll attitude, pitch attitude, vertical velocity and yaw rate. The nonlinear system simulation results show that the responses can meet the requirements on ADS-33 Level 1 handling qualities and that the 4-axis decoupling control is realized. As the damage increases, the tracking performance is slightly degraded, which results in smaller transients in bending moment response. 展开更多
关键词 helicopter control life extending control dynamic inversion fatigue damage
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Nuclear power plant life extension:How aging affects performance of containments & other structures
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作者 Robert A Dameron Sun Junling 《Engineering Sciences》 EI 2013年第3期39-52,共14页
This paper focuses on how aging can affect performance of safety-related structures in nuclear power plant (NPP). Knowledge and assessment of impacts of aging on structures are essential to plant life extension analys... This paper focuses on how aging can affect performance of safety-related structures in nuclear power plant (NPP). Knowledge and assessment of impacts of aging on structures are essential to plant life extension analysis,especially performance to severe loadings such as loss-of-coolant-accidents or major seismic events. Plant life extension issues are of keen interest in countries (like the United States) which have a large,aging fleet of NPPs. This paper addresses the overlap and relationship of structure aging to severe loading performance,with particular emphasis on containment structures. 展开更多
关键词 NPP structure performance plant life extension finite element analysis corrosion CONTAINMENT severe accident seismic event
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Delay retirement impact study of female workers
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作者 LU Weiling 《International English Education Research》 2017年第2期58-60,共3页
In recent years,our country entered the stage of population aging, and this trend continues to increase. Young population declining dependency ratios and the elderly support ratio is growing.Many phenomena are heralds... In recent years,our country entered the stage of population aging, and this trend continues to increase. Young population declining dependency ratios and the elderly support ratio is growing.Many phenomena are heralds the retirement policy must introduce.At the same time, the adjustment of the legal retirement age for women, is also a concern hot spot and a topic of heated academia discussion in politics. As the extension of life expectancy, especially women to longer life expectancy and the education of the extension of women's status, ability to work has been greatly improved. Based on the change of various factors, delay retirement age for women in China's reform is imperative. This paper studies from the perspective of social justice, to the reform of the current situation of the development in our country and foreign experience to research the method of combining the draw delay retirement outstanding aspects of influence on female workers. From a personal health, family factors, career, personal value Suggestions such as, in order to Perfect delay enterprise female worker retirement age policy scheme and implement supporting measures. 展开更多
关键词 Delay retirement WOMEN Workers
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The Research of actual Effect of Delay Retirement on Youth Employment
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作者 HE Liuyang 《International English Education Research》 2017年第2期36-38,共3页
Since China's reform and opening up, the life expectancy of the population has prolonged. As a result, the trend of population aging is becoming increasingly serious. The time was pushed back when young workers enter... Since China's reform and opening up, the life expectancy of the population has prolonged. As a result, the trend of population aging is becoming increasingly serious. The time was pushed back when young workers entered the labor market, while the phenomenon was common that the elderly who should have retired were still engaged in working. Therefore, the retirement age shall be subjected to an imperative delay. In the third Plenary Session of the 18th CPC Central Committee, the central government proposed the "formulation of gradual delay retirement scheme ", which triggered a widespread concern among all sectors in the society. Support and opposition to delay of retirement focus on the impact made by extension of retirement age on the employment. The youth employment, however, is still the issue of social concemThis paper makes a systematic study on the controversy of the relevant scholars, and makes a detailed investigation of the reasons behind the various viewpoints, which is beneficial to the judgment of the rationality between the two parties of the dispute, and then seeks the solution to the problem. 展开更多
关键词 delay retirement youth employment the employment elasticity of GDP
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新加坡成功研发出新一代汽车电池
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《功能材料信息》 2014年第1期56-56,共1页
目前制约电动汽车发展的关键因素是电池,除成本占据全车七成外,还存在使用寿命短、充电时间长和因进水引发爆炸等缺陷。新加坡国立大学机械工程李宝胜博士和来自美国的合作伙伴龚伟成创建的极科公司,研发出新一代电动汽车电池,其最大特... 目前制约电动汽车发展的关键因素是电池,除成本占据全车七成外,还存在使用寿命短、充电时间长和因进水引发爆炸等缺陷。新加坡国立大学机械工程李宝胜博士和来自美国的合作伙伴龚伟成创建的极科公司,研发出新一代电动汽车电池,其最大特点是全新的液态冷却系统。 展开更多
关键词 汽车电池 电动汽车 新加坡国立大学 充电时间 宝胜 冷却系统 使用寿命 苏州工业园 快速充电 寿命
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Power Uprate and Lifetime Extension
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作者 P. Schimann Z. Stosic 《Journal of Energy and Power Engineering》 2011年第9期834-841,共8页
Overall purpose of a power uprate and lifetime extension project (PLEX) is to modernize the power station cost-efficiently resulting in fulfilling the following overall requirements. The primary target is to meet th... Overall purpose of a power uprate and lifetime extension project (PLEX) is to modernize the power station cost-efficiently resulting in fulfilling the following overall requirements. The primary target is to meet the requirements provided by the local regulations from the regulatory offices. The controlling, monitoring and power supply of safety functions have to comply with these regulations. Any deviations from the existing safety analysis report (SAR) have to be corrected. On top of the safety measures the general technical status should be raised to extend the lifetime to 60 years. A high availability during the modernization has to be assured. 展开更多
关键词 Power uprate PLEX LICENSING lifetime extension PSA reactor protection system IAEA NPP.
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Telomerase as a “stemness” enzyme 被引量:1
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作者 KONG Feng ZHENG ChengYun XU DaWei 《Science China(Life Sciences)》 SCIE CAS 2014年第6期564-570,共7页
Pluripotent or multipotent stem cells are involved in development and tissue homeostasis;they have the ability to self-renew and differentiate into various types of functional cells.To maintain these properties,stem c... Pluripotent or multipotent stem cells are involved in development and tissue homeostasis;they have the ability to self-renew and differentiate into various types of functional cells.To maintain these properties,stem cells must undergo sustained or unlimited proliferation that requires the stabilization of telomeres,which are essential for chromosome end protection.Telomerase,an RNA-dependent DNA polymerase,synthesizes telomeric DNA.Through the lengthening of telomeres the lifespans of cells are extended,or indefinite proliferation is conferred;this is intimately associated with stem cell phenotype.This review highlights our current understanding of telomerase as a"stemness"enzyme and discusses the underlying implications. 展开更多
关键词 stem cells TELOMERASE TELOMERE genomic stability iPS cells TERC TERT
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Improving operation lifetime of OLED by using thermally activated delayed fluorescence as host 被引量:1
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作者 HU Jun-tao HU Sheng +3 位作者 YE Kang-li WEI Qing-qing XU Kai WANG Xiang-hua 《Optoelectronics Letters》 EI 2017年第4期271-274,共4页
We fabricated organic light-emitting diodes (OLEDs) with the thermally activated delayed fluorescence (TADF) mate- rial of 4CzlPN, Which show better stability compared with the 4,4'-Bis(carbazol-9-yl)biphenyl ... We fabricated organic light-emitting diodes (OLEDs) with the thermally activated delayed fluorescence (TADF) mate- rial of 4CzlPN, Which show better stability compared with the 4,4'-Bis(carbazol-9-yl)biphenyl (CBP) based devices. The half lifetime of the device using 4CzlPN as host material has doubled, and a slower voltage rise compared with that of CBP-based devices has been achieved, which indicates the improvement of stability. We attribute the better sta- bility to the good film morphology and difficult crystallization property of 4CzlPN. Our results suggest that employing the 4CzlPN as host material can be a promising way of fabricating OLEDs with longer operation lifetime. 展开更多
关键词 FLUORESCENCE Light emitting diodes Sound insulating materials
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