Advanced Materials Research Vols. 361-363

Abstract: In this paper, we utilize Logarithmic Mean Divisia Index (LMDI) techniques to decompose different components —CO₂ emission factor, industrial energy mix, industrial energy intensity, industrial-scale structure, industrial structure, economic activity, family size and family households—which contribute to the changes in CO₂ emissions in Dalian industry sector based on industry economy and CO₂ emissions data in Dalian from 2000 to 2009. The results show that the economic activity was the main component for CO₂ emissions increase, and energy intensity was the most favorable component in developing low-carbon economy in Dalian industry sector, and optimize energy mix could contribute to a significant reduction in CO₂ emissions.

Abstract: TiO2 and carbon black inorganic pigments having opposite charges have been typically used for white and black image in the electronic ink display technique, respectively. However, since TiO₂ has a relatively high density, the density mismatch between nanoparticles and the dielectric medium causes severe sedimentation problem in the suspended media. In order to change its surface from hydrophilic to hydrophobic and lower its density, TiO₂ was grafted by γ-Methacryloxypropyl trimethoxy silane (KH570), and then coated with poly(methyl methacrylate) (PMMA) via a dispersion polymerization method prior to being used for an electronic ink material. In order to improve their mobility, a charge control agent was also added to the suspension of synthesized nanoparticles in the dielectric medium. The KH570-grafted TiO₂ nanoparticles and the TiO₂/KH570/PMMA nanoparticles were characterized by fourier transform-infrared spectroscopy (FT-IR), field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Density of TiO₂/KH570/PMMA nanoparticles was found to be decreased. Thermal properties of the composite particles were analyzed by thermogravimetric analysis (TGA).

Abstract: Based on different post-bid market competition models, this paper studies expected revenue of government in English auction for two common resources usage licenses. Each bidder adjusts their competitors’ cost belief with information revealed in English auction process and decides product quantities in post-bid market if he wins the bid. After calculation and analysis, the following conclusions are reached: English auction would be profitable for government in Cournot and Stackelberg post-bid market competition. Government expected revenue experiences positive relevance with market size and number of bidders in two models. Moreover, government benefits more from Cournot competition in product market rather than Stackelberg competition.

Abstract: When a steel etc. a ferromagnetic material is subjected to the external loads, the internal force will develop, that is, stress will develop inside the material, which will lead to a corresponding change in the magnetic permeability of this material when magnetized. In this paper, according to this unique property of the ferromagnetic material, in the light of the mainly stressed and deformation characteristic of a long span steel structure etc. defect sensitive structures, by the use of stress sensitivity of magnetization, a mathematical physical model of relationship between the change in the magnetic permeability and stress is studied and put forward when a ferromagnetic component is under the action of a simple stress, a linear dependency relation of the component’s stress and its permeability is obtained, and the fundamental theory of the magnetic non-destructive testing of a safe state and its engineering application method is also established for a long span steel structure etc. defect sensitive structures, which provides a definite basis for guaranteeing safety of this kind of structures. Additionally, in this paper through the comparison of the theoretical analysis results with results of the related experiments, the dependency relation of change in the magnetic permeability and stress etc. theoretical research results is verified. Both these results exhibit a good consistence, which demonstrates that the research and the application of the non-destructive safe testing method for a defect sensitive structure based on the magnetic effect is feasible and valid and the future will see a certain engineering application prospect in this research and this testing method.

Abstract: The basic theory of infrared fault diagnosis is overviewed in this paper, and the types and characteristics of the instruments are analysis. Then a few infrared fault diagnosis methods of the electric equipments have been summarized. It shows that the intensity of the infrared radiation is associates with the equipments infrared emissive, and the peak wavelength of infrared radiation associates with the equipments temperature. Based on the discussing of the theory of infrared fault diagnosis, the existing issues are summarized.

Abstract: An environment-friendly and multifunctional agent for industry circulation cooling water, polyaspartic acid derivatives with dihydroxyl group(DHPAP) was synthesized in aqueous solution. The FTIR spectrum of DHPAP was analyzed. Static experiments were carried out to validate scale inhibition performance of DHPAP. The scale inhibition ratios exceed 90% when 8 and 10 mg/L DHPAP under solution temperatures of 80 and 60°C, respectively. The scale inhibition ratios increase by increasing the DHPAP concentration with 6 and 8 mg/L under heating times of 10 and 6h, respectively. And the scale inhibition ratios are over 90%.

Abstract: Confronted with the unstable global environment and the threat of transitional terrorism, besides from the traditional function of supervising the economy frontier, the non-tradition functions Customs has become more and more important. In the supervision of foreign trade, Customs not only ensure the enforcement of legislations, but protect the country from terrorism attack. However, the tremendous amount of containers and the request of trade facilitation have always challenged the sufficiency of Customs supervision. Customs must adopt risk management into its work. This paper studies the risk assessment of container security using FTA and FMECA in order to quantitative the risk in the container cargo shipping process and help Customs regulate efficiently.

Abstract: Based on orthogonal experiment, the thickness of protection habitat base material (PHBM), the cohesion of PHBM, the internal friction angle of PHBM, the slope height, the slope angle and the density of PHBM are selected as influencing factors of stability of rocky slope with ecological restoration (RSER) and each factor is considered three levels. Then, using strength reduction FEM by the software ANSYS, the safety factor of RSER in various combinations is analyzed. Finally, the range analysis and comprehensive assessment are applied to the assessment of results. It is showed that the cohesion of PHBM is the dominant sensitivity factor which affects the stability of RSER, flowing by the slope height, the slope angle, the thickness of PHBM, the internal friction angle of PHBM, the density of PHBM.

Abstract: The reaction of 1,4,5,6-tetrahydro-6-pyridazinone-3-carboxylic acid hydrazides (1) and 1,6-dihydro-6-pyridazinone-3-carboxylic acid hydrazides (2) with four kind of substituted 3-formyl chromones (3a-3d) and five kind of 1-phenyl-3-aryl-4-formylpyrazoles (3e-3i) afforded the new compounds aldehyde hydrazones (4a-4i) and (5a-5i). Their structures were established by IR, ¹H NMR and elemental analysis.

Abstract: A facile hydrothermal method without any templates has been developed for the preparation of α- Fe₂O₃ nanocubes and hollow spheres. The as-synthesized products is then characterized using X-ray diffraction(XRD), scanning electron microscopy(SEM). The nanocubes have extraordinary unity and we can anticipate its unique magnetic characteristic. On the other hand, the hollow sphere structure has a promising future in the application as carriers for targeting drug delivery. In our opinions, the method is not only very simple, but also is very friendly to the environment.