This paper is a review of the recent research about the design of cache coherence protocols in shared-memory multiprocessors. Two important aspects of shared memory systems are memory consistency and cache coherence. Two major available protocols for cache coherence problems are snoopy coherence and...

For the technical defects of IPSec-VPN on the aspect of reliability, we analyze unreliable factors of site-to-site IPSec-VPN topology model, propose to use link redundancy, equipment redundancy, routing redundancy and other technologies, construct high available IPSec-VPN ideas and methods, and conduct...

Precise timing is an extremely important part in the cache timing attack. We usually use the time stamp counter (TSC) to timing the cache access on the x86 platform. To overcome the differences between the ARM platform and x86 platform, we show in this paper about how to implement precise cache timing...

For the problem that the practical teaching of network engineering specialty in universities lacks actual network engineering cases, we choose IPSec-VPN as the study object, and based on GNS3 network simulator, we have constructed IPSec-VPN network topology and established a dynamic executable IPSec-VPN...

The present era is the information age, is the era of network. The life of people more and more cannot do without network. Through the network platform, can learn, reading, shopping etc.. Following the Internet, and the emergence of a new term "the Internet of things". Different things with the network,...

There are several things from the fusion of fusion technology. Therefore, in the cloud, things can be called a new paradigm. With computer operations, generalized computing, and related technologies more closely interdependent, a system has been formed. This system is a world of things. More and more...

Grid technology is widely used in recent years, it has solved the real sharing of resources, make each node of unified command and use of resources, the information grid is on the basis of computational grid, using data mining. Information fusion and search engine technology and building are advantageous...

This paper introduces the concept and architecture of cloud computing, discuss the security problems facing the current cloud computing.The security problem of cloud computing is very important and it can prevent the rapid development of cloud computing. This paper introduces some cloud computing systems...

this paper designed and developed a new type of rectifier bridge machine, the equipment can efficiently in automatic mode and manual mode to complete the detection and classification of the rectifier bridge, the laser marking and the pendulum work, greatly improving the sorting efficiency of the rectifier...

With the development of science and technology, more and more practical problems in life need to use mathematical models to analyze and to solve. So the utility ration of digital technology is becoming higher and higher in terms of discrete structural problems, which has powerfully promoted the development...

With the continuous development of electronic technology and the unceasing improvement of manufacturing process, large scale integrated circuits (ICs in abbreviation and IC for its single form henceforth) has now become more and more complex. In modern high-tech industrial equipment, however, its core...

Along with the continuous progress of science and technology, industrial automation has been more and more widely applied in various industries. As it raises labor productivity and breaks the confinement to human labor, it has played a significant role in China’s economic construction. This paper mainly...

Along with the in-depth development of information technology, tourism e-commerce and websites have played an important role in tourism. As the combination of tourism industry with information technology is becoming more and more closely, tourist have become more and more dependent on online tourism...

Based on ZIGBEE technique, this paper designs a monitoring system of environment parameters in greenhouse. ZigBee technique is firstly introduced, followed by the demonstration of overall design scheme of the monitoring system, mainly on the hardware and software composition of data acquisition and coordinator...

Many disadvantages exist in human intravenous infusion preparation process, with cross contamination. Effectively prevent intravenous fluids should be dispensed pollution, this paper introduces the automatic dispensing device structure and working principle of the control system, the experimental results...

This paper carries out simulation in terms of table-driven routing protocol and source-initiated on-demand protocol that are typical of DSDV, DSR and AODV based on NS-2 network simulation tools according to different routing discovering strategies. Then through setting different simulation scenarios,...

In the teaching process of the course of operating systems, process synchronization is both a key and the biggest difficulty. This paper, through transforming the definition of E-R diagram in database, proposes process synchronization teaching method for computer operating systems based on modified E-R...

Cloud computing is the product of the Internet era, which can realize dynamic resources disposition, customized services for demand, and centered on the Internet, render service measurable and resources transparent. It plays a big role in the in data mining field of various industries in today’s society....

Combined with cloud computing technology, we described its role and advantages in resources building of the university. We initially developed a resources sharing platform based on cloud. The strategy of the developments of standardized college information resources, the data central of cloud computing,...

in the process of the new period technological development, virtual reality technology and interactive media art as products of the new digital technology and media art, more and more apply in people's work and life. By using of virtual reality technology in the early stage of product design, can more...

With the rapid development of new e-commerce model, the implement the retail model of online to offline has increasingly high requirements to users experience. This paper combines the users experience theory model with the Business Logic Layer design of shopping site, proposes the “user center” ideal...

XML has become the standard of data representation in the science and business application and standard of data exchanging among applications in Web. Driven by the demand and technology, various database vendors extend the function of XML. This article introduces an application system in the computer...

In this article, we refer to literature and review the function of network information resources and conclude the current evaluation of network information resources. Based on these works, we developed a three-layer network information resources with 25 evaluation indicators of 4 parts and did detailed...

The paper aims to discover the development rule of fetal parital bone. One hundred and eighty parietal bones of 5-38th weeks old were observed and measured. With the Noback’s method every fetus was made transparent and then dyed dark red by the Alizarin red. The measured data are added to differential...

A lot of data on the web are usually embedded in the semi-structured pages. In order to automatically process the content embedded in Web pages, extracting data from them and making it available to computer applications remains a complex and urgent task. Most of current approaches use a single classifier...

Synthetically analyze the power distribution communication network technology in the smart power grid link. It mainly includes the summary of the smart distribution network, electric power communication backbone network and then layer communication requirements, the network mode and the application mode...

Correlation theories for rapid design of series products under SaaS model was illustrated and system instances were established in this thesis in allusion to the improvement of informatization level of modern enterprises, as well as the improvement of the efficiency and quality of rapid design of product....

E purchase is an application constructed on browser open platform, and it overcomes the limitation of existing technology in integration aspect of webpage and instant message, so, it can let common users establish chat room by self based on any webpage and have a chat with users browsing the same webpage....

Based on DiffServ model architecture model, GNS3 network simulator is used to build a virtual network environment; on this basis, the main QoS technology is analyzed and discussed in DifferServ model and MQC deployment is used to ensure QoS policies of low-latency operations; SLA job simulation is used...