It was found that the defects were formed and the conductivity increased with the addition of co , which improved the diffusion of proton and inhabited the formation of y - niooh . the electrochemical capacity of the electrode with cobalt additives changed slightly after 206 cycles . the electrode can exhibit excellent high - rate discharge performance , the capacity discharged at 6c ( 1800ma / g ) can reach to 77 . 7 % of which discharged at 1c condition 在纳米ni ( oh ) _ 2电极中加入钴和锌添加剂，并全面地分析了它们对电极性能的影响，发现加入钴添加剂后增强了电极的导电性，形成杂质缺陷，更有利于质子的出入，同时抑制- niooh的形成，提高充放电效率和循环稳定性，电极在经过206个循环后变化甚小；电极的倍率放电性能相当出色，在1800ma g ( 6c )的大电流放电条件下，依然能放出1c的77 . 7 ；在钴的添加方式中，以co和coo混合添加的效果最佳。
Our aim is to display high - rate product , exchange authentic information , promote development of trade , accelerate marketing for the new products , offer a series of service , use tangible assets to power incorporeal assets for increment . as a platform of exhibition and trade , which takes the group purchase and stream of information as principle , we hope to combine international trend , lead domestic stream and interpret ideal life . century building fully represents the developing trend of advanced residence , and reflects characteristics on safety , energy saving , environmental protection , automation , personality etc . let s start here for the sustained development of china s housing industry 具体有实景参观剖面展示透明展示集成配套的动态展示触摸式计算机，使观众全方位了解认识感受体会集成住宅在建筑体系科技含量材料工艺精美装饰等方面具有的特点优势综合效能及可操作性并便利查询安排结构设计施工部品等各环节专业人员对观众的具体需求进行详尽解说，提供订单设计配送安装结算保险等一站式服务，完全实现消费者的房屋设计权功能要求权性价比的知情权，避免了传统购房的种种烦恼，足不出户即了解世界住宅发展趋势及文化。
The application of the software hardware advanced techniques , such as an algorithm for continuously outputting high - rate gps position data , voice data trucking system ( vdt ) , a new gps ( avl ) system framework , an up - to - date mutual communication method and so on , enlarges the system capacity and the covering area , realizes the voice data transmitting in the present mobile communication channel , meets the need of kinetic positioning . in a word , it enhances the capability of management and decision 系统中gps定位数据的高速率连续输出算法、话音数据集群( vdt ) 、新的gps车辆系统结构和全新的通信交互手段等先进技术的采用，人人提高了系统的容量和覆盖面积，实现了在现有移动通信信道上数话兼容、高动态定位的需求，使科学管理和决策水平得到很大提高。
The results shows : under high - rate discharge conditions , the batteries with cnts added in the positive electrodes exhibited much better cycling stability , higher discharge voltage and high - rate capability . the increase in internal resistance of the batteries with cnts was lower than that of the batteries without cnts during charge - discharge cycles . the addition of 0 . 5 wt . % 结果表明：在高倍率放电的条件下，正极中添加少量cnts的ni mh电池具有更好的循环稳定性、更高的放电平台以及更好的高倍率性能；正极中添加少量cnts制成的mh ni电池在高倍率放电的循环过程中内阻升高较小；正极添加0 . 5wt . cnts的电池具有理想的高倍率性能和综合性能，过多的加入cnts无益于电池性能的提高。
The future wireless mobile communication systems are expected to provide ubiquitous , high - quality , and high - rate mobile multimedia transmission . however , hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse , wireless channel are often time varying , which makes the system more vulnerable and more difficult to track the channel state . orthogonal frequency dvision multiplexing ( ofdm ) , which is inherently resistant against isi , has invoked a popular research interest in recent years , and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications . notwithstanding , ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation , and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems . the dissertation will focus on both of the aspects of ofdm systems mentioned above 但是无线环境的多径特性造成通信系统中严重的符号间干扰,同时无线信道的时变性使得信道特性跟踪复杂。而正交频分复用技术( orthogonalfrequencydivisionmultiplexing , ofdm )正是一种解决符号间干扰的有效传输手段,因此ofdm技术作为未来宽带高速率无线通信的物理层候选技术在当前引起了一股研究热潮。但ofdm系统对定时同步误差和信道估计误差非常敏感,如何在ofdm系统中准确快速地实现符号同步和信道估计是至关重要的,本论文将重点针对这两个问题进行讨论。
While in the advantageous environment with high - rate development of the market economy , the two parts can remedy their own defects and promote their mutual development by establishing cooperation and communication between school physical education and social sports in terms of organizational system , activity subject , equipment and guidance 在市场经济发展的契机下，建立学校体育与社会体育在组织体系、活动主体、场馆设施、体育指导等方面的代表作与交流，可以弥补各自的不足，促进二者的共同发展。
Because of enabling to provide high - rate and high - quality wireless and mobile communication service , orthogonal frequency division multiplexing ( ofdm ) system is becoming a very hot research topic recently , and it is especially one of the technical difficulties to estimate and equalize the time - varying ( tv ) dispersive channels 在移动无线通信中，由于能提供高速率和高质量的通信服务，正交频分复用( ofdm )技术成为当前国际上的研究热点，而时变色散信道的估计和均衡问题是其中的技术难点之一。
Based on simulations , it is proved that ( 1 ) friday can give tcp protection from the aggressiveness of high - rate udp flows to some extent ; ( 2 ) friday is effective in the case of one - way tcp transmitting ftp ; ( 3 ) in the case of transmitting on - off pareto traffic and two - way tcp with higher burstness , friday is able to provide a higher fairness than lqd ( longest queue drop ) with the same scheduling algorithm ; ( 4 ) in the case of multiple bottleneck links , the fairness of friday is still better than lqd and red 用仿真实验证明，当存在高速udp流时， friday对tcp流具有一定的保护作用。 friday不仅对传输ftp业务的单向tcp有效、而且对传输on offpareto业务的tcp和具有更大突发性的双向tcp也可以提供比采用同样调度算法的lqd （最长队列丢弃）算法更好的公平性；当存在多条瓶颈链路时， friday的公平性仍然优于lqd和red 。
