As IT

Today, data centers are being built with more entities on a larger scale in order to satisfy the rapid growth of services and the demand for efficient service delivery and management. These data centers are facing scalability, manageability, and consumability challenges that require breakthrough technology for design and management. This paper extends previous work that focused on using virtual appliances for service management, by describing the following areas: 1) rapid provisioning, which simplifies and accelerates the deployment and activation of virtual appliances by checking parameter dependencies and coordinating execution sequences; 2) selective presentation, which provides flexible interfaces to present meaningful information through customized metrics; 3) simplified operation, which enables different operation granularities by coordinating the operation sequences across virtual appliances; and 4) automated consolidation, which enables automated service performance management by automatically monitoring and optimizing resource allocations. In addition, we describe the design and prototype of an extendable management framework, virtualization integrator (VSI), which enables an appliance builder to easily fulfill the key features of virtual appliances and coordinate management function across components located in multiple virtual appliances. By reinventing virtual appliances with built-in management capability, data center management is radically simplified and automated. The results, improved server utilization and simplified system manipulation, demonstrate the potential for virtual appliances to be fundamental building blocks for large-scale data centers and potentially for cloud-based new enterprise data centers.

Aim to a weapon platform get objects information in aspect of precision stroke beyond visual range, study on a novel method of antiterrorism sensor network. Raise formative network method based on control in order to settle for demands for antiterrorism sensor network. The network topology is distributed plane peer to peer self-organized structure. In the particular geography district, nodes carry on closed loop control, discover routing and maintain it according to the need that the delivering data packets and the state of their link. The simulation results show that the method has characteristic of none-center, self-organized, rapid dynamic which antiterrorism sensor network has. The novel method can be applied in execrably antiterrorism environment.

Development of 3D printing technology rapidly and widely used in machinery manufacturing. 3D printing business is much, but the efficient equipment is deficiency. Methods of 3D models collecting, processing and online displaying were studied. A 3D printing service platform was constructed based on Cloud computing technology. The service program was developed by ASP. The background of the platform was managed by MySQL database. CAD files were displayed on a HTML5 browser by WebGL. A 3D printer owner released the 3D printer information, users searched printers and uploaded models data. The models were manufactured by remote online printers. The platform provides excellent products manufacturing environment for 3D printer owners and users. Products and printers are full information sharing. The economic benefit is rich.

Based on the Meter Bus technology, the paper explains how to implement switching principles for the multi-term field bus in different batches and sections as well as usages for the multiple-address branching operation design in detail.