使用TFTP命令修复Linksys无线路由器固件升级故障

笔者有款Linksys by Cisco WRT320N-C,固件版本V1．0．01。在使用一段时间后,无线路由器待机时间过长就会出现锁死现象。而新的V1．0．02版本固件解决了这一问题,因此笔者考虑进行固件升级。     

1.3 /spl mu/m InGaAsN vertical cavity surface emitting lasers grown by MOCVD

The first InGaAsN VCSELs grown by MOCVD with CW lasing wavelength longer than 1.3 /spl mu/m are reported. The devices were of conventional p-i-n structure with doped DBR mirrors. CW lasing up to 65/spl deg/C was observed, with a maximum output power at room temperature of 0.8 mW for multimode devices and nearly 0.3 mW for single-mode devices.     

The Reduction of Silver Ions on Nuclei by Hydroquinone

The reduction of silver ion by hydroquinone on various colloidal nuclei in aqueous gelatin has been examined. The relative effectiveness of the various nuclei depended primarily on size, and less on their chemical identity. Smaller nuclei were less active per unit surface area. When reduction set in, the reaction rate was proportional to the surface area of the growing particle, and no evidence was found of control by diffusion. The reaction was first-order in respect to hydroquinone (-1) anion and half-order with respect to silver ion. In physical development by hydroquinone, small nuclei showed a marked induction period.     

100美元，将决定电子书兴衰两重天

作为国内较早接触电子书阅读器的一个用户．从索尼Pocket Edition PRS-300开始，我前后接触的专业电子书产品不下七款。曾经有不少身边的朋友对我随身携带的电子书表示了浓厚的兴趣．但在知道它们最少也要1700元人民币的时候．无一例外地打了退堂鼓。到现在，这些喜欢看书的朋友手中浏览电子书文件的利器基本上多是手机、PDA，NDS和PSP．却没有一个人愿意买下专业的电子书阅读器。深入人心的性价比观念，第一次让我哭笑不得。     

如何事受虚拟化的部署之旅（之一） 探寻虚拟化技术的前世今身

随着近年多核系统、集群、网格、甚至云计算的广泛部署,虚拟化技术在商业应用上的优势日益体现,不仅降低了IT运营成本,而且还增强了系统安全性和可靠性,虚拟化的概念也逐渐深八到人们日常的工作与生活中。那什么是虚拟化技术？它能为我们带来了什么？     

山寨上网本之死

前段时间接到一个朋友的电话：“这个市场（山寨上网本市场）不好玩．可是现在想退也不是一时半会儿就能退，所以想找你支个招儿。”就在一年前．这位原本做游戏机配件的朋友眼红于山寨手机的“钱景”．     

Motion of rigid aggregates under different flow conditions

The response of rigid aggregates to different flow fields is investigated theoretically using model clusters with realistic three-dimensional structure composed of identical spherical primary particles. The aim is to relate the main fluid dynamic properties of the system with the geometry and morphology of the aggregates. Our simulations are based on Stokesian dynamics. The dilute limit of a colloidal aggregate system was studied, where aggregates are very far from each other, and hence, mutual inter-aggregate interactions are negligible. The motion of aggregates is characterized in terms of translational mobility and angular velocity, and the ability of simple models, based on either the simplified aggregate geometry or the concept of permeability, to capture the main features of the motion is examined.     

Lower limb amputation in a general hospital: a comparative review

This paper presents the results of a recent review of lower limb amputations carried out in a general hospital, and compares them with those of previous study of similar amputations. Particular attention is paid to the type of amputation-below-knee, through-knee or above-knee--and the associated morbidity, mortality and rehabilitation prospects. There is a need for an active approach to the problems of amputation with emphasis on preoperative preparation of the patient, the operation itself and rehabilitation follow-up in an amputation clinic.     

The mouse Cd83 gene: structure, domain organization, and chromosome localization

Drug-food interactions in hospitalised patients may result in decreased drug efficacy or increased drug toxicity. The increasing complexity of drug therapy regimens has increased the potential for drug-food interactions to occur, reinforcing the need to develop methods to prevent clinically significant drug-food interactions. Before selecting the optimal method, in terms of feasibility of implementation and successful outcome, drugs with the potential for clinically significant interactions with food must be identified. From an analysis of the literature, 6 methods to prevent drug-food interactions have been suggested as useful tools. Each method has its own advantages and disadvantages. Most have been developed in response to guidelines from the most well recognised agency for quality review in the US, the Joint Commission on Accreditation of Healthcare Organisations (JCAHO). Based on those recommendations, an ideal programme to prevent drug-food interactions would be a combined patient counselling and label system to select the most appropriate drug administration times and increase nurse and patient awareness of the potential for drug-food interactions. However, because of time constraints and limited resources, a label system or the provision of a drug-food interaction pamphlet to the patient before discharge would be a more practical method. Newsletters and educational in-services combined with patient counselling or a label system would be a valuable method to prevent drug-food interactions in hospitalised patients.