基于最优化流控的TCP拥塞控制改进算法MReno

应用最优化流控理论,给出TCP Reno算法的一个对偶模型,把该模型与REM算法相结合,得到一个新的TCP网络拥塞控制算法(MReno),并对其进行模拟实验.结果表明,MReno算法可以使源端获得最大资源利用率,能够保证网络的整体优化,MReno算法比Reno算法有更好的公平性和稳定性.     

Study on the REM Model for Group Decision Making

IntroductionAsocialchoicefunctionisamappingwhichassignsanonemptysubsetofthepotentialfeasiblesubsettoeachorderedpairconsistentofapotentialfeasiblesubsetofalternativesandascheduleorprofileofvoters'preferences.Consideranopinionaggregationprobleminwhichagroupofexpertsgivetheirscoresthatexpresstheirpreferencestoasetofalternativesanddesiretocombinetheirscoresintoasingleaggregationpreferenceoverthealternativeset.Theunderlyingideahereisthattheconsensusofnumerousexpertsresultsinasuperiorpreferenceonthe…     

基于X-10协议的远程家居照明控制系统

介绍了基于X-10协议及电力线载波传输的远程家居照明控制系统的设计。对于系统的硬件部分,采用单片机作为收发端控制器,以较为简洁的电路完成交流电的过零点检测。在接收装置的输出端利用继电器控制灯的开关或可控硅控制灯光的明暗调节。软件部分着重论述了基于X-10协议的通信协议和控制信号的程序实现。对系统可能存在的干扰问题进行了分析,提出了具体的抗干扰措施。     

REM算法的改进

在分析REM算法和最优化流控模型的基础上,改用非线性优化理论的变尺度算法计算链路影子价格,从而改进了REM算法.模拟实验表明,改进后的REM算法队列十分平稳,收敛速度比原来的算法快,适用于高带宽网络.     

再谈特殊情况下悬高测量

在悬高测量基本原理的基础上,文章探讨了一种适用于特殊情况下悬高测量的新方法——变动仪器高法,并推导出该方法的精度计算公式。利用该方法,通过实例计算,对其测量误差进行了分析;结果表明,该方法步骤简便,工作量小及效率高,并且很少受地形条件的限制,在一般情况下,观测精度可达到厘米级,能够满足一般工程测量的要求。     

Sleep in the tortoiseKinosternon sp.

Summary Individuals ofKinosternon sp., previously confined to laboratory conditions, were chronically implanted with electrodes for electroencephalogram, electro-oculogram and electrocardiogram recording. Behavioral states of waking and sleep were clearly observed. Two sleep stages were present: quiet sleep and REM or active sleep. Electrical cerebral activity was polymorphic and irregular. EEG frequencies declined and amplitudes diminished with sleep. Arrhythmic spikes occurred during behavioral sleep and declined with waking. Heart rate decreased when passing from wakefulness to quiet sleep. It was slightly but consistently higher during active sleep compared with quiet sleep.     

建筑物表面积悬高测量法

根据某建筑物外围玻璃幕墙装修项目工程的要求,设计一种利用全站仪无棱镜模式和内置悬高测量新方法对建筑物表面积进行测量,避免了安置棱镜寻找投影点的不便。相对于传统测量方法,该方法简单可靠,精度较高,可以满足建筑物设计施工的要求。在实际测量施工任务中以及大型建筑表面粉刷装饰,高空安装和室内设计等施工技术中能够提高工作效率,节约成本。     

心率变异性的研究方法及其对于短时睡眠数据的应用

总结了HRV信号的各种分析方法,然后以10位健康成年男子睡眠的各5min的NREM4期和REM期的HRV信号为研究对象进行分析。最后根据计算结果结合生理知识给予一定的解释。     

Seasonality in human sleep

The timing of sleep and sleep EEG parameters in 10 healthy male subjects were investigated in four seasons under controlled conditions. The phase of nocturnal sleep was delayed about one and a half hours in winter as compared to that in summer. The duration of stage 4 sleep decreased and REM sleep increased significantly in winter compared with summer. The seasonality in the timing of sleep can be explained by photoperiodic time cues, but the changes in sleep EEG parameters are diffucult to explain in terms of photoperiod.     

基于熵可靠性的相对熵集结模型

针对传统的相对熵集结模型在赋权方面存在的缺陷,本文基于熵可靠性对其进行优化.首先利用广义熵的可靠性分析,剔除原专家群组中可靠性较低的专家,建立新的专家群组;其次基于熵的可靠性,确定新群组中专家的权重;最后将权重应用于相对熵集结模型中,来集结专家群组的一致性.算例结果表明,优化后的相对熵集结模型是有效的,而且可靠性得到很大的提高.