Advanced Materials Research Vols. 181-182

Abstract: This paper presents a kind of method that the mobile terminal is seen as a tool to manage dynamic logistics information and inquiry line. First of all, based on real-time location technology of GPS equipment and the use of the serial port or Bluetooth mobile interface, the system has implemented the reading of the GPS positioning data, then it gives two-way data transmission between servers and the mobile terminal based on Web Service and GPRS/3G. Eventually it has successfully realized to exchange the information between location data and logistic platform and to locate the logistics vehicles. The realization of the system has a strong practical significance to the comprehensive logistics information platform which integrates the information of vehicles, cargo and freight trains.

Abstract: Using FPGA for general-purpose computing has become an important research direction in high performance computing technology. However, it is not a lossless optimization method. Due to the impact of hardware reconfiguration overhead, data transmission cost, specific characteristics of programs, and other factors, the speedup of general-purpose computing on FPGA has visible difference. On the basis of in-depth analysis of FPGA architecture and development process, the main factors affecting FPGA implementation performance are pointed out, and a parallel cost model for FPGA based on static program analysis is proposed to provide judgment basis for using FPGA in general-purpose computing. The experiment results show that the algorithm estimates accurately FPGA execution performance.

Abstract: To solve the‘soft-field’nature and the ill-posed problem in electrical capacitance tomography (ECT)technology, a novel preconditioned conjugate gradient algorithm for electrical capacitance tomography is presented. The analysis of the basic principles of electrical capacitance tomography, based on the given preconditioned conjugate gradient method and calculation formula of the iteration steps of the ECT and to explore the feasibility of application of the algorithm, the algorithm to meet the convergence conditions and the reconstruction image error. Experimental results and simulation data indicate that the algorithm can provide high quality images and favorable stabilization compared with LBP，conjugate gradient algorithms in simple flow pattern and this new algorithm presents a feasible and effective way to research on image reconstruction algorithm for Electrical Capacitance Tomography System.

Abstract: Study on migration and transformation rules of diesel fuels pollution by using two-dimensional plexiglass tank to simulate underground aquifers. Through regular monitoring of the sampling ports in total petroleum hydrocarbon content of the water to determine the diesel fuels in the medium sand aquifer in the migration process, and compute out parameters of diesel fuels pollution in the medium sand aquifer in the mathematical model of migration. This prediction of diesel fuels pollution in the migration of sand media. The results showed: the highest values of different sampling ports used by the time its location is closely related to distance to sources, the concentration rose to the highest value used in a short time. The sampling ports far away from the pollution spilling place rose to the highest value of concentration used in a long time. After diesel fuels leaked 40 d later, the simulation of pollutants reached the bottom slot, and diesel fuels can be calculated transfered with a speed of 1cm•d-1, and then after 20 d more, TPH can be moved to simulate the water tank side pollution of the aquifer region.

Abstract: A robust, non-contact sensor that measures BOF endpoint bath temperature has been developed and evaluated over a large number of industry heats. The optical hardware consists of a radiation collection head and a multi-wavelength detection unit. The radiation collection head aimed at the furnace mouth is used to collect, and thus enhance, the effective radiant energy emitted from the hostile environment adjacent a furnace as well as to reduce spurious radiations from other nearby furnaces. The detection unit separates the collected radiations into spectroscopy and then converts this spectroscopy into digital signals. Finally, the signal information is processed to determine the carbon content of the steel contained in the metallurgical furnace. The Preliminary results after online carbon content sensing are discussed.

Abstract: Using Fourier transform near-infrared (FTNIR) transmission spectroscopy and multiple linear regression (MLR) method of the equidistant wavenumbers combination, the quantitative analysis models of human serum glucose were established, and discrete wavenumbers combination was optimized. The optimal models were found in the five equidistant wavenumbers combinations with 7 and 40 gaps.The center wavenumber of the optimal models with 40 gaps in the first overtone region and combination region were 7970 and 5880 cm-1 respectively, and the corresponding RMSEP were 0.371 and 0.389 mmol/L respectively. While the center wavenumber of the optimal models with 7 gaps in the combination region and first overtone region were 5795 and 8041 cm-1 respectively, and the corresponding RMSEP were 0.395 and 0.407 mmol/L respectively. The above four models had a good prediction effect, and could provide basis for designing minitype special NIR spectroscopy instrument.

Abstract: Consumer demands are the important drive of product design. Based on consumer behavior, psychology, consumer composition of infant washing product is firstly pointed out, and group characteristics of infants and their post-80 parents are analyzed. In consumption it shows a trend from satisfying with quantitative requirement to pursuing quality improvement. From the different breakthrough points, investigation is carried on to semantic design of some infant washing products, and their semantic description of functions and demands are summarized. Finally, new semantic design of infant washing product is presented to meet consumer demands, which is helpful for the designer of new product.

Abstract: The calculation speed is one of most dofficult problems for a computer-generated hologram of an object. This is due to the facts that both the pixel number of an object and that of the hologram are very large. In this paper we calculate the computer-generated hologram of an object by a difference method and translation symmetry. The main operation of the difference method is addition which is faster than multiplication and division. By translation symmetry of pixels of the object and holgram plane, we can void many repeating calculations. Thus oue method can speed up the computer-generated hologram of an objec. The computer simulation result proves that our method is effective.

Abstract: Convex hull is a very important data structure of computational geometry design. This paper presents an algorithm to construct the convex hull of a set of scattered points by coordinates and relative angle method. The algorithm determines the convex vertexes and eliminates some non-convex vertexes, which greatly reduces the searching scope and the complexity. Delaunay triangulation is widely used in 3D surface reconstruction. Due to its duality, Delaunay triangulation is usually constructed through Voronoi diagram. Delaunay triangulation is directly constructed in this paper. The algorithm is simple, stable and easy to implement, especially for less data points.

Abstract: The method of merging concept lattice in domain ontology construction can describe the implicit concepts and relationships between concepts more appropriately for semantic representation and query match. In order to enrich semantic query, the paper intends to apply the theory of Formal Concept Analysis (FCA) to establish source concept lattices, through which the domain concepts are extracted from source concept lattices to generate the optimized concept lattice. Then, the ontology tree is generated by lattice mapping ontology algorithm (LMOA) combing some hierarchical relations in the optimized concept lattice. The experiment proves that the domain ontology can be achieved effectively by merging concept lattices and provide the semantic relations more precisely.