China is a country prone to natural disasters, especially the flood disaster. In order to improve the villages and towns flood emergency management, through a series of methods such as information management and simulation, the establishment of emergency decision support using information technology to reduce losses caused by floods, the visualization technology is used in the virtual reconstruction model of floods, intuitive way to simulate the dynamic spread of the process of the flood disaster, in a safe and economical method to obtain the number of indicators of disaster-related decision. It provides a new method and ideas, and then it gives a reliable basis for the flood prevention and emergency management. The visualization analysis and decision is achieved for the villages and towns flood control, and it provides great support for the villages and towns flood mitigation and prevention. The result shows that the system is useful and meaningful in the town flood mitigation.

Smart Home is an emerging interdisciplinary subject, which has already enjoyed flourish development all over the world and has become the mainstream of the development of the construction industry in the 21st century. In this paper, through the design of smart home which mainly uses embedded microcontroller design, this vast world of smart home is introduced to everyone, so that they can pay more attention to smart home. Design the embedded system which takes ARM as the core through the model of host - subsystem, through RS485 bus management and control of the control terminal, and process, automatic control and regulation is conducted. The three subsystems of home security, appliance control, family MRs are also used to design home by use of embedded system. The design of smart home control system can make family life more comfortable and convenient, more economic and security, and take a firm step in order to meet the demands of people of safety, comfort, convenience as well as confirm to the green environmental protection.

In this study, we will discuss a fast spatial indexing structure called QR*-tree based on R*-tree and quad-tree. Now, R*-tree and R-tree are widely used in spatial database as a spatial indexing structure, But for each algorithm alone, it is not suitable for the huge data volume. The hybrid structure that we proposed is composed of many R*-trees based on space partitioned by quad-tree. Although it demands more storage space than R*-tree or quad-tree, it gains better performance in insertion, deletion, and searching especially, and the more the amount of spatial data is, the better performance the hybrid-tree has.

The implementation of the construction bill of quantities (BOQ) pricing system is an important measure for deepening project cost management, and it is not only an important way to promote the construction project marketable and international, but also one of the measures for regulate the construction markets .In-depth study of the existing BOQ software, proposed construction projects BOQ system development based on software reuse. During the cause of system development software reuse is used, the function of the system model and the model of system development the soft component are given, with a soft component to assemble the system. The software reuse-based development model, with soft component assembly systems, it is not only speeding up the development progress and development costs, but also can improve the maintainability and scalability of the software.

With the continued expansion of logistics business, and the growing number of network node, enterprises scale will be expanded, including: business department, offices, and even branches, as well as multi-level agents, partners and so on. Conducting business in this complex interwoven network, the logistics business appears to be inadequate in the ways of business, finance, management. This paper provides the modern integrated logistics management platform with a set of comprehensive globalization solutions.