An integrated DBP for streams with (m,k)-firm real-time guarantee

(m,k)-firm real-time or weakly hard real-time(WHRT)guarantee is becoming attractive as it closes the gap between hard and soft(or probabilistic)real-time guarantee,and enables finer granularity of real-time QoS through adjusting m and k.For multiple streams with(m,k)-firm constraint sharing a single server,an on-line priority assignment policy based on the most recent k-length history of each stream called distance based priority(DBP)has been proposed to assign priority.In case of priority equality among these head-of-queue instances,Earliest Deadline First(EDF)is used.Under the context of WHRT schedule theory,DBP is the most popular,gets much attention and has many applications due to its straightforward priority assignment policy and easy implementation.However,DBP combined with EDF cannot always provide good performance,mainly because the initial DBP does not underline the rich information on deadline met/missed distribution,specially streams in various failure states which will travel different distances to restore success states.Considering how to effectively restore the success state of each individual stream from a failure state,an integrated DBP utilizing deadline met/missed distribution is proposed in this paper.Simulation results validated the performance improvement of this proposal.     

论现代绘画艺术的音乐性

西方现代绘画是一种非写实性的表现艺术，造型元素（点、线、形、色）各有其内在音响及表现功能；画面的构成体现出音乐的节秦和韵律，使人产生一种丰富的联想。     

医学形态学实验技术平台的构建、管理与运行

随着科学技术和研究生教育的快速发展,为了更好地提高我院科研水平,同时加强研究生培养和医务人员开展科学研究,我院利用有限资金,重点构建了一个具有较大规模和特色的医学形态学实验技术平台.经过数年建设、管理和运行的结果显示,该平台发挥了理想的效果和效益.其构建规模与技术档次、管理与运行模式、服务保障与使用效率等方面的经验,对其他相应单位建设共享实验平台将提供新的借鉴与参考.     

Monotone routing in multirate rearrangeable logd（N,m，p） network

The construction of multirate rearrangeable network has long been an interesting problem. Of many results published, all were achieved on 3-stage Clos network. The monotone routing algorithm proposed by Huet al. (2001) was also first applied to 3-stage Clos network. In this work, we adopt this algorithm and apply it to log _d (N,m,p) networks. We first analyze the properties of log _d (N,m,p) networks. Then we use monotone algorithm in log _d (N,0,p) network. Furthermore we extend the result to construct multirate rearrangeable networks based on log _d (N,m,p) network (1≤m≤n−1). Project (No. 10371028) supported by the National Natural Science Foundation of China     

扑克牌问题的数学推广与解决

首先给出由—扑克牌游戏规则产生的问题，进而利用(0，1)-矩阵方法对此问题作了数学推广与理论分析：即重排数g(m，n)及其存在性，最后给出g(m，n)求解算法与求解公式。     

两个Ramsey数R(m,n,l)和R(m,n,l,s)的含参数的上界

Ｉｎ 1935 ,Ｐ .Ｅｒｄ¨ｏｓａｎｄＧＳｚｅｋｅｒｅｓｏｂｔａｉｎｅｄｔｈｅｃｌａｓｓｉｃａｌｉｎｅｑｕａｌｉｔｙＲ (ｍ ,ｎ)≤Ｒ (ｍ - 1,ｎ) Ｒ(ｍ ,ｎ - 1) .　Ｉｎ 196 8,Ｋ .ＷａｌｋｅｒｐｒｏｖｅｄｔｈａｔＲ(ｎ ,ｎ)≤ 4Ｒ(ｎ- 2 ,ｎ) 2 .　Ｉｎ 1998,ＨｕａｎｇＹ .Ｒ .ａｎｄＺｈａｎｇＫ .Ｍ .[1,2 ] ｐｒｏｖｅｄｔｈａｔＲ(ｍ ,ｎ)≤ 12 (β 3γ 5 ) 　　12 γ(4α 2 β - 3γ 6 ) (β 1) 2　Ｉｎｔｈｉｓｐａｐｅｒ ,ｗｅｏｂｔａｉｎｓｏｍｅｎｅｗｕｐｐｅｒｂｏｕｎｄｓｆｏｒＲ(ｍ ,ｎ ,ｌ)ａｎｄＲ(ｍ …     

关于寿命分布NBU(2)类的若干封闭性质

Some new results about the NBU(2) class of life distributions were obtained. Firstly, it was proved that the decrease with time of the increasing concave ordering of the excess lifetime in a renewal process leads to the NBU (2) property of the interarrival times. Secondly, the NBU(2) class of life distributions is proved to be closed under the formation of series systems. Finally, it was also shown that the NBU(2) class is closed under convolution operation.     

2000m跑替代800m跑检测高校女生心肺功能和有氧耐力的可行性研究

随机招募20名全日制普通高等院校女生,分时间段进行运动心肺功能测试(CPET)、2000m跑和800m跑测试,采用意大利科时迈K4b^2遥测运动心肺测试仪采集测试数据。经Pearson法分析,CPET中最大摄氧量和氧脉搏指标与2000m跑中对应指标具有相关性,与800m跑中对应指标不具有相关性。通过这个测试得出2000m跑测试项目的检测效度与运动心肺功能测试基本相同,可替代800m跑检测高校女生心肺功能和有氧耐力。     

几类特殊图的圆色数性质

圆色数是图的色数概念的推广 .与色数相比 ,圆色数包含了更多有关图本身结构的信息 ,因而更加难以确定 .本文推导了 2类特殊图———图Ctk 和图Ctk-v的圆色数 ;并给出了图Hm ,n圆色数的一个简单证明 .     

范德瓦尔斯频移及线型畸变现象

从理论上研究了囚禁于两电介质间薄原子蒸汽的频率调制吸收光谱中范德瓦尔斯频移及线型畸变现象,发现在频率调制情形下频移很明显,线型则由对称类色散型转为非对称类吸收型。采用频率调制的方法解决了在很多情形下采用直接法或吸收法不易实现对vdW作用势进行精确测量的难题。