Advanced Materials Research Vols. 912-914

Abstract: Using core analysis, thin slice identification, logging analysis and seismic interpretation, systemic study upon sedimentary types, sedimentary facies, physical and oil bearing properties of each sedimentary microfacies, etc presenting in underwater alluvial fan of Kerqin oilfield of Kailu basin in China, is performed. To identify sedimentary characteristics of underwater alluvial fan and determine its oil bearing property so as to develop this type of reservoir reasonably and effectively. Underwater alluvial fan comprises of 5 kinds sedimentary facies: clastic flow, high density flow, low density flow, overflow and river channel sedimentation. Further division includes three sub-facies, i. e. tail, body and front part of underwater alluvial fan, among which braided structure of body part features favorable accumulation and oil bearing properties. Underwater alluvial fan is formed from the double action mechanisms of gravitational flow and traction flow. Body microfacies are primary oil bearing play and braided channel is the main future development target.

Abstract: A nondestructive inspection system has been developed using the active thermography technology. However the solder defects can not be distinguished directly from the thermal images captured by IR camera because of the heating non-uniformities. The principal component analysis is explored to identify the defects of the solder bumps accurately and effectively. Thermal contrast image is obtained by subtracting source distribution map from the original thermal image. The hot spots corresponding to 16 solder bumps are segmented. The pixels with the thermal contrast values ranging from 0.18°C to 0.20°C are counted, and the maximum and the minimum of the pixel value are found out respectively, which are used in the principal component analysis. The missing bump is identified by the first principal component score. The results show that it is effective using the principal component analysis in active thermography for defects inspection of solder bumps in microelectronic packaging.

Abstract: This paper adopts large finite element software ANSYS to establish finite element model of twin-tower building with enlarged base, uses dynamic time history analysis method for seismic response calculation, compare and analyze the calculation results of twin-tower building with enlarged base under elastic boundary conditions and rigid boundary conditions. The results showe that dynamic response for model under elastic boundary conditions is larger than dynamic response for model under rigid boundary conditions, and elastic boundary conditions is more close to the actual situation.

Abstract: Proxy re-encryption is an efficient solution to ciphertext delegation and distribution, which also enables the sender to carry out fine-grained control on his ciphertext. This paper summarizes the progress on the proxy re-encryption schemes and their practical applications. Universal models for proxy re-encryption and its security are also induced for detailed investigation on different types of PRE schemes.

Abstract: In order to arouse the interesting of Russian teaching in Russian class, a T type teaching aid was developed based on SolidWorks2012 in this paper. The design detail for desinging this teaching aid is discussed, and the distribution of the stress, strain and displacement is investigated under a 10N load. The results present that the node number of the T plate teaching aid is approximately 11356, and the grid unit number is 1226. The max stress and strain is 45.678 N/mm² and 1.642×10^-6.

Abstract: Our country is manufacturing industry power in the world, NC machining is used in mechanical manufacturing industry widesprealy. With the development of manufacturing industry, NC machining strides forward super-speed machining step by step. In order to achieve the machining requirement of speediness and high-precision of complex parts, automatic programming becomes the main programming pattern of NC programming. Ensuring validity and optimizing of NC programs is fundamental demand of automatic programming. So as to test validity and optimizing of NC programs, NC simulation is obtained widespread use in the process of programming.

Abstract: Based on the current situation of the government's public affairs management model and features of the presentation, analysis and study of Internet-based government public affairs management system design, the design of the system Unified Modeling Language (UML) to establish requirements analysis model to B / S mode for the system implementation platform, which studied the method for the production of multimedia courseware management subsystem, as well as managers in order to check the management of master degree, also studied the expansion Tutor system and random examination system.

Abstract: The large-capacity, high-speed and low power consumption become the new requirements for the data storage systems. In this paper, a high-performance storage module based on multiple NAND flash memory chips is presented to real-time massive data acquisition system. In order to achieve the miniaturization dimension and the high-speed data storage design requirements, the paper presents a small size and high-speed storage unit based on NAND flash, where the dimensions of the module can reach 33mm×33mm and the maximum rate is up to 60MB/s. Ensuring continuous and reliable operation requires a dedicated buffering for the data transmission. We analyze the elements and peculiarities of the flash memory chip and propose a multi-way architecture to speed up data access. The design of a multilevel high-speed buffer structure based on the field programmable gate array (FPGA) technology is introduced in the paper. The proposed system can be applicable to some portable digital equipment.

Abstract: In order to reduce the information chaos of product design, we present the main motions of Design-Element based product design that we call it DE-PD. Different from traditional product design process composed of function, style, or customer requirements etc.al, DE-PD is driven by the knowledge and information flows in product design iteration. In DE-PD, the product is composed of Design-Elements (DE) which is the integration of related knowledge and information. After discussing the definition and information construct of DE, we present the iteration of DE based product design. To evaluate the method, a design case of beach motorcycle with limit mount of DEs is conceived. Evaluation results show that DE-PD is a promising approach for product design informatization.

Abstract: According to the project interface risk classification including the physical interface risk, the contract interface risk, the tissue interface risk and the information interface risk, the integrated management model of project interface risk was put forward, which focused on the three dimensions: time dimension, relational dimension and information dimension. The project interface risk management system was developed, which consists of information subsystem, organizational subsystem, resources and support subsystem, and dynamic management subsystem. The system implements integration of project risk management from the perspective of the interface, and by using the system managers can foresee the exact location of the risk occurring or may occur.