bluuebunny/crossref_metadata_2025 huggingface dataset:
Screening of Mold Producing Aroma in Chinese Koji and Optimization of Culture Conditions
Authors: Luo Hui Bo , Wang Da Di , Wang Yong , Yang Wen Bin , Xie Jun
Published: October 2014

The mold strains with stronger ability producing aroma were screened from 15 mold strains of the laboratory, and the culture conditions were optimized. The result showed: the strains njsys-6, njsys-45, njsys50 had stronger ability producing aroma. In koji juice medium, the strains had the most abundant metabolites, the esterifying enzyme activity and total ester content were the highest for 7.19U/mL and 0.18%. Njsys-45 could resistant high concentration ethanol and temperature up to 10% and 36°C respectively, it could resistant pH3.6. It had been confirmed that njsys-45 strains could be added aroma substances in Koji, and the esterifying enzyme activity was 7.18U/mL, the total ester was 0.18%.
Study on Oxidation Stability of Algae Oil
Authors: Yang Xian Qing , Lv Jun Wei , Ma Hai Xia , Wei Ya
Published: October 2014

The peroxide value, content of malondialdehyde were selected as evaluation index to meusure the oxidation stability of algae oil. In this study, we investigated the effect of the temperature, light, air and metal ions on oxidation stability of algae oil. The results showed that higher was the temperature, much lower was the oxidation stability of oil; Light and oxygen both greatly promoted the oxidation of the oil; the order of the influence for metal ions to the oxidation stability was:Cu2+>Zn2+>Fe2+. Hence, we get that we should produce or store the oil under the condition that out of light, air, metal ions and kept at lower tempreture.
Study on Solubility, Water-Holding Capacity and Stability of Polypeptide from Camellia Seed Meal
Authors: Yin Shi Qin , Liu Guo Qin , Liu Xin Qi , Sun Ying
Published: October 2014

The influence of temperature and pH on solubility, water-holding capacity (WHC) and stability of polypeptide from camellia seed meal were studied. The polypeptide was extracted from camellia seed meal by trypsin after ultrasonic pretreatment, with a degree of hydrolysis (DH) of 21.69%. At this DH, the camellia seed meal polypeptide (CSMP) has better solubility and WHC with a proper higher temperature or when its pH deviates from the isoelectric point. Moreover, the CSMP would not agglutinate in alkaline range even though it is heated to 121°C, and after storing under the condition of -18°C for a month, it would not precipitate after thawing. The results show that the CSMP has great solubility and WHC in both acidic and alkaline conditions, as well as good thermal stability and freezing storage stability in alkaline range.
Synthesis of 2,2,4-Trimethyl-1,3-Pentanediol Monoisobutyrate
Authors: Zhang Xiang Jing , Wu Peng Tao , Jiang Zi Chao , Liu Ting Ting , Gao Xiao Yang , Ma Ren Juan , Hu Yong Qi
Published: October 2014

2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (CS-12) is a non-water-soluble diol ester and an emerging green additive, widely used in paint industry. It can be synthesized by isobutyraldehyde with alkali as catalyst. In this article, several catalysts were studied for the synthesis of CS-12, for example, sodium hydroxide, calcium hydroxide, the mixture of sodium hydroxide and calcium hydroxide, sodium methoxide, the solution of sodium methoxide and methanol, and sodium ethoxide. Sodium hydroxide was finally selected as the optimal catalyst for the reaction. The effect of the amount of catalyst, reaction temperature and reaction time on the reaction were investigated by orthogonal experiments. The final optimal conditions are as follows: the catalyst dosage is 2 %, the reaction temperature is 50 °C, the reaction time is 4h. Under these conditions, the conversion of isobutyraldehyde is 93.10%, the selectivity of target product is 92.98%.
The Optimization and HS-SPME/GC-MS Analysis in Pear Fruit
Authors: Li Guo Peng , Lin Li Jing , Zhao Jun , Li Ji Hua
Published: October 2014

Solid-phase microextraction (SPME) is a rapid sample preparation in volatile analysis. The aromatic volatile compositions of ‘Kuerle’ were analyzed using SPME and gas chromatography-mass spectrometry (GC-MS). The effect of different types of fibers, extraction time, and extraction temperature on the volatile results were compared and discussed. The results were as followed. Results showed that 65μm PDMS/DVB fiber had the best effect of extraction. The optimum factors such as extraction time and temperature were 45 min and 40°C.
Volatile Compositions Analysis of Tilapia (Oreochram niloticus) and Fishy Odour Development in the Muscle
Authors: Liu Hui Hong , Hu Fei , Li Ping Fan
Published: October 2014

Volatile compositions of fresh tilapia and fishy odour development in the muscle during 12 days of storage at-18°C were studied. Investigations were carried out to extract the volatile compounds in tilapia using solid phase microextraction (SPME). A total of 35, 35 and 38 volatile components were identified in the muscle, head and skin of tilapia, respectively, within which nonanal, octanal and E-octenal were the most powerful contributors to the fishy odour of Tilapia. During iced storage, free fatty acid (FFA) content, conjugated diene (CD) and thiobarbituric acid reactive substances (TBARS) increased. Peroxide value (PV) gradually decreased after increasing in the first 3days of storage. Total volatile basic nitrogen (TVBN) values increased from 7.7 to 24.1 mg/100g after the storage of 12 days. Correlations between chemical indexes and sensory evaluation scores showed that the off-odour in fish muscle was mostly governed by lipid oxidation.
Synthesis of Three Different Types of Chalcone Derivatives
Authors: Yan He Ping , Huang Du Shu , Zhang Ju Cheng , Huang Rui Na , Fu You Wang , Wang Wei Sheng
Published: October 2014

Three chalcone derivatives were synthesized by the reaction of acetophenone with dimethylamino benzaldehyde, vanillin, diphenyl formaldehyde, respectively. The results showed that: A yield of 80.4% was obtained by the reaction of acetophenone and dimethylamino benzaldehyde in ethanol as solvent, 10% NaOH solution as catalyst at room temperature. A yield of 25.0% was obtained by the reaction of acetophenone and vanillin in ethanol as solvent, a mixed glacial acetic acid and hydrochloric acid as the catalyst, adding 10% KOH solution for dehydration by heating after the reaction at room temperature. A yield of 76.3% was obtained by the reaction of acetophenone and diphenyl formaldehyde in ethanol as solvent, 10% NaOH solution as catalyst at room temperature. Acid was used as the appropriate catalyst when chalcone derivatives were synthesized by aldehyde with hydroxy.
First Principles Calculation of LaNi3 Type Hydrogen Storage Alloy Mg Atoms Occupying
Authors: Gao Wei , Xie Fei , Wen Zi Tong
Published: October 2014

Using the first principles calculation method calculated the Mg substitutional atoms occupying law in LaNi3alloy. The results of total energy showed ,when Mg atoms occupy the bit of 6c,LaNi3alloy is more stable. And substitutional atoms tend to non adjacent. The result of size effect and electronic structure showed that ,the size effect is a major determinant of substitutional Mg substitutional atoms.
A Meshless Local Collocation Method for Natural Frequencies and Mode Shapes of Functionally Graded Plates
Authors: Zhou Guo Qing , Wang Ji , Xiang Song
Published: October 2014

The novelty of this paper is the use of a meshless local collocation method based on the multiquadric radial basis functions for free vibration analysis of functionally graded plates. This method approximates the governing equations based on first-order shear deformation theory using the nodes in the support domain of any data center. The natural frequencies computed by the present method are in good agreement with the element-free solutions of Zhao et al.
Effect of Ground Quartz Sand and Ground Granulated Blast-Furnace Slag on Properties of High-Strength Concrete in the Steam and Autoclaved Curing
Authors: Hu Yan Yan , He Ting Shu , Zhang Xian Zhe
Published: October 2014

High-strength concrete in the autoclaved-curing was made by the way of mixing single and double doped. The compressive strength of concrete and the morphology of hydrates in concrete containing ground granulated blast-furnace slag (SG) and Quartz sand (QS) have been investigated using XRD and SEM measurements. The results show that quartz sand also possesses effective pozzolanic property in the steam-autoclaved stage. The mixed proportion of QP:SG=1:1 is the best when the dose is 30%.The paste became denser through double mixing. When the doses is 10-35%, SG for the improvement of concrete compressive strength is higher than the quartz sand.
Effect of Volcanic Rock Powder on Performance of Foamed Concrete
Authors: Su Kui Fan , Jiang Bo , Lian Jiang Shan , Qin Pei Cheng , He Si Zhi , Chen Jun Kai
Published: October 2014

Foamed concrete is prepared by the use of volcanic rock powder and ordinary portland cement and by means of chemical foaming method. The chemical composition and morphology of volcanic rock powder are analyzed,and the effect of volcanic rock powder addition into the portland cement slurry on the properties of foamed concrete is discussed.The results that the properties of the foam concrete could be prepared by controlling the addition of the volcanic rock powder content is 20%, The Compressive strength is as high as 1.36Mpa. The thermal conductivity is 0.048W/(m·K) and the dry density is 254kg/m3 for 28 days curing age. The main compositions of volcanic rock powder is SiO2 and the volcanic rock has a large number of closed and open pores.
Effect of Preparation Methods on Ti-PILCs Catalysts in Selective Catalytic Reduction of NO by Propylene
Authors: Wang Qi Ying , Liu Zi Li , Wu Jun Rong
Published: October 2014

Different Cu-loading pillared clays catalysts were studied in selective catalytic reduction of NO by propylene. The catalyst prepared by incipient wetness impregnation (Cu/Ti-PILCs) had better catalytic activity and stability than that prepared by ion-exchanged method (Cu-Ti-PILCs). Cu/Ti-PILCs has higher BET surface area than Cu-Ti-PILCs. Pore size distribution analysis and XRD showed that Cu species dispersed well in Cu/Ti-PILCs but formed conglomeration in Cu-Ti-PILCs. TPR showed that Cu2+ species were the main active species on the Cu/Ti-PILCs, which was responsible for the high catalytic activity of catalyst.
Calculation Method for Predicting Polymer Compatibility: Estimation of Microphase Compositions from Glass Transition Temperatures
Authors: Askadskii Andrey , Matseevich Tatyana , Popova Marina , Kondrashchenko Valerii , Qi Shi Cheng
Published: October 2014

A calculation method for predicting compatibility of two polymers on blending is proposed. The method is based on the criterion of polymer solubility in organic solvents; the criterion takes into account the chemical structure of both polymer and solvent, surface forces, and the polymer-solvent intermolecular interaction energy. When two polymers are mixed together, one of them is regarded as a "solvent". The applicability of the method to fully compatible, partially compatible, and absolutely incompatible polymers is analyzed. It is shown that the composition of microphases at microphase separation can be approximately calculated using the dynamic mechanical analysis (DMA).
Research on Determination for Food-Related Polystyrene Doped with Recycled Plastic by GPC
Authors: Zhang Xiao Lei , Wang Lei , Chen Xiao Qi , Zhou Hai Jun , Yang Shu Lan , Li Yan Tao , Qin Wan Bao
Published: October 2014

Polystyrene (PS) had wide range of applications in food packaging field. Mechanical recycling of PS was simulated by multiple extrusions to assess the behavior of physical degradation. The molecular weight and the molecular weight distribution of PS with different extrusion cycles were investigated by gel permeation chromatography (GPC). Experimental results show that the differential and cumulative distribution curves of PS shift to smaller values with the number of extrusions cycled increasing. The Mn and Mw of PS decrease. However, Polydispersity index (PDI) increases obviously.
The Occurrence Modes of Tantalum-Niobium Tailing Mine in Jiangxi Province
Authors: Liu Yue Long , Liu Jia
Published: October 2014

Because of their widely application of tantalum, niobium and lithium in industry, the occurrence modes of tantalum-niobium tailing mine in Yichun city was investigated by SEM, XRD, XRF measurement. Some interesting results are obtained, which is useful for the next flotation process and for the comprehensive utilization of lepidolite resources in Jiangxi province.
Effectiveness of Novel Preservative Solutions for Longan (Dimocarpus longan Lour) Freshness by Coating
Authors: Wu Heng Yuan , Xiong Jian , Ye Jun
Published: October 2014

Novel preservation of longans treated by edible coating was researched in a double-blind test at room temperature. The 1/10, 1/15 dilutions of No.1 and No.2 compound preservative solutions respectively were used, and their preservative effect on longan was evaluated by sensory analysis. The results showed that the compound preservative solutions could keep the quality of longans effectively. The concentration of the preservative solutions was not the key factor for improving their fresh-keeping ability in the experimental range. The optimum formula of the preservative solution was No.1 compound preservative solution diluted in the ratio of 1:10.
Preparation and Interaction of Modified PHS and CMC Liquid Composites
Authors: Xu Xiao Ling , Zhang Min , Song Ji Qing , He Wen Qing
Published: October 2014

Novel liquid composites were successfully prepared by blending copolymer (PEG/PHS) and carboxymethyl cellulose (CMC) in this work. PEG/PHS was achieved by introducing polyethylene glycol (PEG) into the main chain of poly hexanediol succinic (PHS). The results showed that the structure characterization of PEG/PHS was displayed in 1H NMR spectrum. The interaction existed between PEG/PHS and CMC which was validated in FT-IR and SEM. This conjecture was simulated by molecular dynamics under the software YASARA. Because of the existence of interfacial interaction, composites films kept good thermal performance and the flexibility of composite films was greatly improved.
Fabrication of Stainless Steel Foams Using Polymeric Sponge Impregnation Technology
Authors: Wang Hui , Zhou Xiang Yang , Long Bo
Published: October 2014

316L stainless steel foams (SSFs) are fabricated successfully by polymeric sponge impregnation technology. The effects of mass fractions of PVA and powder on LOAD in impregnated sponge samples are investigated, and the effects of sintering temperature on apparent density, open porosity and bending strength of SSFs samples are also discussed. The experimental results show that the impregnated sponge samples may hold excellent 3D open-cell network structure and uniform muscles when the mass fractions of PVA and powder in slurry are kept in 9-13 % and 52-75% respectively; with rising the sintering temperature, the apparent density and bending strength of SSFs gradually increases, the open porosity reduces. After the temperature exceeds 1260°C, the bending strength reduces oppositely. A stainless steel foam sample with open porosity of 81.4% and bending strength of about 56.8 Mpa can be obtained after sintering at 1260 °Cfor 30min.
Ruthenium-Catalyzed Cascade Ring-Opening Polymerization/Hydroboration for the Synthesis of Low Cross-Linking Poly (6-norbornenyldecaborane) and its Thermal Property
Authors: Li Jun Peng , Yang Han , Liang Yun , Chen Jia Lin , Xie Ming , Zhou Lin Min , Xiong Qing Feng , Li Wen Lin
Published: October 2014

The ruthenium catalyzed hydroboration of decaborane for the synthesis of low cross-linking poly (organodecaborane) is reported for the first time in one-pot. Based on the ruthenium-catalyzed cascade ring-opening polymerization/hydroboration reaction, the poly (6-norbornenyldecaborane) was obtained with well-defined structure, the final char yield is up to 81%. This method offers a complementary approach for the synthesis of decaborane-containing polymers.
Preparation and Characterization of Electrospun CuO Microfibers
Authors: Peng Yi , Wang Zhou , Xu Liang , Jing Mao Xiang , Shen Xiang Qian
Published: October 2014

Copper Oxide (CuO) microfibers with different morphologies were prepared by the electrospinning and calcination process. The formation process of CuO microfibers was analyzed by thermogravimetry and their microstructures were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed the spinnability and electrical conductivity of the polymer solution are affected by the concentration of acetic acid solution. The morphologies of CuO are closely related to the calcination temperature. The thin-walled tubulous microfibers can be obtained by calcination of the electrospun precursor with 8 wt.% acetic acid at 500○C for 2 h.
Effect of Heat Treatment on the Photocatalytic Activity of TiO2 Thin Films Fabricated on Ti-6Al-4V Alloy
Authors: Jia Fang Zhou , Zou Song Hua , Sun Guo Jin , Li Ji Dan , Wang Zheng
Published: October 2014

The self-organized oxide nanotube/pore layers were prepared by anodization on ternary Ti-6Al-4V alloys. The morphologies and structures of layers under different heat treatment tempreture were characterized by means of SEM, XRD, XPS and Raman spectroscopy and DRS. The effects of alloying element under different heat treatment tempreture on the structure, composition and opsorption property of the film catalysts were investigated along with their inherent relationships. The results show that two kinds of Ti-Al-V-O nanostructure grown inthe α and β phase region formed on the surface of the alloy. V doped-TiO2can inhibit the formation of anatase. The films show the microcrystalline structure of anatase and rutile and a small amount of V2O5on the surface of film annealed at 400 oC. Moreover, the large surface and the synergy effect of V-doped TiO2and V2O5make sample show the highest photocatalytic activity for the photocatalytic hydrogen evolution.
Preparation and Dielectric Properties of Cu/PVDF Composite Films
Authors: Zhai Jian Wen , Wang Ya Jun , Deng Jian Lou , Feng Chang Gen
Published: October 2014

nanoand micro size Cu were employed separately and investigated comparatively. Different volume fraction of Cu was added into PVDF film in order to investigate the content of filler effect on the dielectric properties of polymer composites. XRD and SEM were used to analyze the crystalline phase and microstructure of the films. The results show that two sizes of Cu have the same peak features, and with the continuous increase of the content of Cu, it disperse better in PVDF. The dielectric constant (ε) of the composite containing 16 vol% micro-CCTO filler is 16 at 100 Hz and room temperature, and its dielectric loss (tanδ) is only 0.15, which is substantially better than others. Besides, for 18 vol% nanoCu/PVDF composite tanδis 0.25 andεis 18 at 100 Hz. Moreover,εand tanδof nanoCu/PVDF composite are both higher than those of micro-Cu/PVDF. Analysis shows that the composites with nanoCu have higher dielectric constants, which is mainly from the interfacial polarization.
Study on the Impact of Degummed on Pineapple Leaf Fiber’s Structures and Formaldehyde Adsorptions
Authors: Li Ming Fu , He Jun Yan , Zhang Jin , Deng Gan Ran , Lian Wen Wei , Huang Tao , Zhuang Zhi Kai , Ou Zhong Qing
Published: October 2014

The micro-structural and formaldehyde adsorption abilities of pineapple leaf raw and degummed fibers are characterized by using SEM, FT-IR, chemical composition analysis and determination of acidic oxygen-containing functional groups and more other methods. Test results show that after being degummed, pineapple leaf fibers possess smoother surfaces, obvious grooves, better single-fiber separations and non-significant cross-sectional cavities. Hemicellulose’s characteristic absorption peaks disappear basically and their contents are reduced from 20.62% to 2.65%. The intensities of lignins’ characteristic absorption peaks drop and their contents are decreased from 3.68% to 1.20%. The locations of celluloses’ characteristic absorption peaks do not change too significantly and their contents are increased from 61.18% to 84.45%. The numbers of carboxyl, lactone and phenolic hydroxyl in acid oxygen-containing functional groups are reduced. Pineapple leaf raw fibers have higher formaldehyde adsorption abilities. After degumming, formaldehyde adsorption abilities of pineapple leaf fibers are similar, but all slightly lower than raw fibers.
Comparison of Water Adsorption Characteristics of Oligo and Polysaccharides of α-Glucose Studied by Near Infrared Spectroscopy
Authors: Christy Alfred A.
Published: October 2014

The adsorption properties of water molecules on oligo and polysaccharides are attributed to the OH groups of the glucose rings in the molecules. The water molecules are adsorbed onto OH groups by hydrogen bond formation. Near infrared spectroscopic and gravimetric techniques were used in analysing the adsorption characteristics of malto-oligosaccharides and some polysaccharides. Near infrared spectra of the dry oligo and polysaccharides were acquired during the adsorption of water molecules at a relative humidity of 50-55%. The amounts of water adsorbed by the samples were also recorded by an analytical balance. Second derivative techniques were used in decomposing the OH combination frequencies of the adsorbed water molecules in the region 5300-5000 cm -1.The results indicate that the water molecules are adsorbed on to C2 and C3-OH groups at a higher rate compared to the adsorption onto C1-OH groups in the molecules. Adsorption also takes place onto the ethereal oxygen atoms in the glucose rings in malto-oligosaccarides. The gravimetric results show that the adsorption of water molecules increases with the number of glucose units in the malto-oligosaccharides except maltotriose which has the highest adsorption over a period of 75 minutes. Furthermore, the adsorption characteristics of amylose and amylopectin are similar.
Lime Plasters Containing Waste Ceramic Powder as Partial Replacement of Siliceous Aggregates
Authors: Vejmelková Eva , Čáchová Monika , Koňáková Dana , Reiterman Pavel , Černý Robert
Published: October 2014

Waste materials are utilized with an increasing frequency in the building industry, during the last decades. The motivation is both environmental and economical. In this paper, waste ceramic powder produced at the grinding of hollow brick blocks used in precise-walling technologies, is applied as a partial replacement of siliceous aggregates of lime plasters. The designed plaster mixes are analyzed from the point of view of their basic physical, mechanical, hygric and thermal properties. The bulk density, matrix density, open porosity, compressive strength, bending strength, water vapor diffusion permeability, water vapor diffusion coefficient, water vapor diffusion resistance factor, thermal conductivity and specific heat capacity are the investigated parameters. A reference lime plaster is analyzed as well, for the sake of comparison. Experimental results show a remarkable enhancement of mechanical properties of the plasters with the increasing dosage of ceramic powder. Moreover, the thermal insulation properties are improved and the water vapor diffusion capability of the plasters with ceramic powder increases.
Study of the Attenuation Characteristic of Electromagnetic Waves in Plasma Sheath
Authors: Jia Long , Ma Hong Guang
Published: October 2014

Plasma sheath that seriously impacts the propagation of electromagnetic waves will be produced when an aircraft flying in the atmosphere at very high speed. This thesis concentrates on the study of the attenuation characteristic of electromagnetic waves in plasma sheath. Through discussing the formation mechanism of plasma sheath and analyzing the propagation characteristic of electromagnetic waves, the scope of communication outage will be learned. The plasma sheath is segmented into plentiful subshells which are considered as uniform layers. Ultimately the factors which affect the attenuation of electromagnetic waves will be known.
Analysis of Forward-Looking Synthetic Aperture Radar Imaging Characteristics of Rotating Target
Authors: Chen Lei , Chen Dian Ren , Liu Ying , Lv Ze Chuan
Published: October 2014

In this paper,it is established the geometric and radar echo model of the rotating target with the Forward-looking synthetic aperture radar firstly,then the Doppler frequency History Formula is Deduced and Pointed out that the Formula has a sinusoidal characteristics. It is simulated the imaging of the stationary target and the rotating target with different rotation speed, the imaging result can be expressed as the forms of curve and the curve circle nomadic type, when these features appear in the imaging results, it can initially determine that the rotating target is presence.
City Electronics Furniture Store System Order Based on ASP.NET
Authors: Cheng Yan Yan , Yuan Quan Bo
Published: October 2014

The system uses B/S architecture, developed using ASP.NET electronic mall three-tier system. Project is divided into foreground and background, foreground realized commodity purchase and purchase orders, mainly for administrators to manage the background of product information, product reviews, order information management. After testing, the system completes the established function works well.
Driver of CAN BUS Based on ARM Cortex-M3
Authors: Cheng Shan Ying , Zhou Xue Mei
Published: October 2014

This paper designed and implemented a driver of CAN bus based ARM Cortex-M3. Combined with CAN bus technology, the paper introduces the hardware design based on STM32F205, a latest 32 bits microchip and CAN transceiver SN65HVD232. The design of CAN communication protocol and the program of software are described. The relevant key technology such as initialization, interrupt and data structure are illuminated. Experiments have verified the CAN bus driver is feasible, stabile and reliable.
Infrared Target Detection Based on Temporal-Spatial Domain Fusion
Authors: Chen Bing Wen , Liu Shi Long
Published: October 2014

In order to improve the accuracy and stability of infrared target detection, a novel moving target detection approach based on temporal-spatial domain fusion is presented. A multi-level spatial-temporal median filter is utilized to extract the background frame, with which the background clutters are suppressed by using the background subtraction technique. Then a local weighted operator is applied to enhance the targets. Lastly, the otsu thresholding algorithm is utilized to detect the targets. Experimental results demonstrate that the proposed approach is capable of detecting infrared moving targets effectively for F1 measurement up to 92.8%.
Method of Software Development Research Based on Mobile Platform
Authors: Zhang Yi
Published: October 2014

Software Engineering in 1968 made ​​by the NATO Science Committee, put forward the concept of the original software engineering software development rambling into a systems engineering, software development work to drive from individual behavior to the collaborative development forward, which also large systems may provide software development, this paper now mobile platform software development, how to introduce the concept of software engineering research, analysis software differences in the characteristics of mobile platform software development and in the traditional sense, learn software engineering concepts to guide the movement software development platform.
Oscillation of Unstable Second Order Neutral Differential Equations with Positive and Negative Coefficients
Authors: Xu Ji Jun
Published: October 2014

This paper discusses a class of unstablesecond order neutral differential equations with positiveand negative coeffcients. Sufficient conditions for all bounded solutions of the equations to be oscillatory areobtained.
Research of from Theory to Practice about Computational Thinking
Authors: Zhan Tao , Liao Zhi Gang , Gao Li
Published: October 2014

Computer Thinking is the core content of Computer Basic knowledge. With the full implementation of quality education in order to cultivate the innovative spirit and practical ability, computer thinking knowledge and skills are necessary for current college students. Aimed at the, the paper puts forward Visualization teaching methods and use typical cases in teaching experience of College Computer Foundation, which will help students have access to professional knowledge and skills about computer science.
Research on Network Information Security and Protection
Authors: Wu Qian
Published: October 2014

Early network development, people more emphasis on network convenience and availability, and ignore the security of the network. With the development of computer network technology, when people run in the network critical business such as banking, when government activity is increasingly networked, computer network security has become a problem that not allows to ignore. In this paper, the existing network security technology to prevent the analysis and comparison, especially to strengthen security measures should be taken in order to do a more in-depth discussion, and describes the future development trend of this research field.
The Compositional Effect of Water-Soluble POSS Hybrid PNIPA Nanocomposite Hydrogels
Authors: Chen Yi , Liu Wen Yong , Zeng Guang Sheng , Yang Jun Hong
Published: October 2014

The nanosized water-soluble Oa-POSS particles were added into the PNIPA hydrogels by in situ radical polymerization as a reinforce agent. The mechanical properties are determined by the composition of gels. With the increase of Oa-POSS, the tensile and compression strength is enhanced significantly, while, the elongation at break is still low. The increased BIS, related to the tighter network structure, results in better compression strength, but the tensile properties is not improved obviously.
Study on a Novel FSS-Absorber Radome
Authors: Wu Wei Wei , Wang Qing Ping , Luo Hui , Wu Min Jie , Yuan Nai Chang
Published: October 2014

A FSS-absorber radome with both transmissive and absorptive bands is proposed in this paper. The transmissive band is at X band and the absorptive band is at K band. The radome consists of periodical FSS-Absorber units. Each unit has two layers laminated on a substrate: a metallic layer working as frequency selective surface (FSS) and a resistive layer realizing the absorber function. Firstly, the FSS-Absorber unit is carefully studied. Then this radome-antenna array configuration is researched and simulated. The simulated gain, monostatic RCS and bistatic RCS results of a radome-4x4 patch antenna array model are compared with these simulated results of a 4x4 patch array model. These results indicate that the radome is transparent in its passband and can largely absorb the incoming electromagnetic wave in its absorptive band. The radome can be easily realized in engineering.
Study on Dynamic IR Image Generation of Space Target
Authors: He Wu Can , Liao Shou Yi , Zhang Zuo Yu , Zhang He Xin
Published: October 2014

Dynamic IR image generation of space target is one of the key technologies in hardware in the loop simulation for the infrared imaging guidance system. The three-dimensional entity model is created in the Creator, Sinda/Fluint is used to analyze each part of dynamic infrared radiation characteristics from on-orbit Space Target, on the basis of the LRS infrared star catalogues, celestial background modeling is built. In Vega, the dynamic IR image of space target is generated. The simulation results show that the dynamic IR image of Space Target provide the important objective basis for the hardware in the loop simulation for the infrared imaging guidance system.
Study on the Method of Feature Extraction of Vegetable Diseases Based on Image Processing
Authors: Peng Zhan Wu , Wang Xue
Published: October 2014

Using computer image processing technology, greenhouse vegetable diseases were recognized intelligently, and taking the cucumber mildew as an example, the method of image pre-processing and feature extraction for intelligently recognizing greenhouse vegetable diseases was studied. White was chosen as the background of diseased leaf, median filter was utilized to effectively wipe out the disturbance of noise, and two-apex method was applied to separate the disease images from the background. Geometrical features of the disease spots were accurately extracted by performing image edge detection. The results suggest that the method can pre-process images and precisely extract the features of the diseases.
The Effect of Polymerization Mode on the POSS Hybrid PVA Hydrogels
Authors: Chen Yi , Liu Wen Yong , Zeng Guang Sheng , Yang Jun Hong
Published: October 2014

A novel POSS hybrid nanocomposite hydrogels was synthesized by introducing water-soluble Oa-POSS into the PVA hydrogels by freeze-draw mode. The freezing temperature and freeze-thaw cycle times affected the mechanical properties of gels. When polymerizing at lower temperature, the tensile strength and modulus increases and the elongation at break decreases obviously. Meantime, with the increase of freeze-thaw cycle times, the strength, modulus and elongation at break all improved gradually.
The Application of Kernel Methods for Image Classification
Authors: Zhou Ming , He Shu , Cheng Yong Jun
Published: October 2014

Kernel methods are famous for their efficiency and robustness in processing non-linear machine learning problems in the high dimensional feature space, and thus widely applied in image classification and detection. The proper principal components are selected for KPCA reconstruction according to noise features. Finally, the improved image is obtained by performing inverse method. Experimental results show that the proposed method can suppress noise interference in remote sensing images, and preserve the useful information of original data more completely.
The Design of the Enterprise Network Security Solutions
Authors: Liu Qing Li , Wang Xiao Qing
Published: October 2014

With the continuous development of the computer network and popularization, the computer network has brought endless resources, but the resulting network security problem also becomes very important. The article mainly introduced based on WINDOWS system environment of small and medium-sized network security control and virus prevention and control strategies. In order to secure the safe and efficient operation of all work, to guarantee the network security and normal use of the system. Network security relative to our actual life is indispensable. At the same time, we must always pay heed to the construction of computer network security.
The Research and Development of Vehicle Network Platform Based on OBD
Authors: Bao Kao Ming , Cheng Geng Guo , Wang Ling Yan
Published: October 2014

Cars have become an important transportation tool of people's daily life. And how to implement information technology to improve the convenience and intelligence of using vehicle has become the popular research direction. In this paper, the author uses Spring+Hibernate framework and OBD technology to develop vehicle network platform with high portability, scalability, easy maintenance etc. The operation of this platform will greatly increase the intelligence and convenience of the vehicle use, provide practical application and research of the current vehicle network.
Development of GIS PD Location System Based on LabVIEW
Authors: Yang Yan , Chen Xiao Feng , Liu Qing
Published: October 2014

On-line detecting partial discharge inside GIS and locating the source of partial discharge spatially can discover the premonition of GIS insulation defects. This article introduces a system for partial discharge on-line detection and source locating, which is based on the hardware consisting essentially of ultrasonic sensors, prepositive signal amplifiers, a TDS3034C oscilloscope and a laptop. The system is a virtual instrument based on LabVIEW platform, and it can sample the ultrasonic signals generated by partial discharge in real time, and provide a friendly human-computer interaction interface. This article deeply discussed the partial discharge signal acquisition, signal de-noising, multi-way signal delay calculation and algorithm based on the time lag. The result implies that the system can validly detect and locate partial discharge, and spatially demonstrate the coordinate of the source of partial discharge through human-computer interaction interface.
Based on the Students' Application Ability of Japanese Teaching System Building
Authors: Wang Jing Fang
Published: October 2014

Vocational middle school of Japanese teaching, attaches great importance to the fundamental and practical. In terms of quality objectives, the vocational school students in Japan major should have to adapt to the employment needs of the Japanese language skills and language communicative competence. According to the talents training goal of the school localization, this paper expounds the concept of Japanese students application ability, put forward in order to enhance students' ability to apply teaching methods should be taken.
On the Bottleneck of the Cultural Value of National Traditional Sports and Solutions
Authors: Liu Yi Wei
Published: October 2014

The national traditional sports has a long history, This article focuses on the value of the National Traditional Sports. In addition, dig the value of the national traditional sports, and select the appropriate national traditional sports on a more brilliant road, which is the mission of our social development and which will be the inevitable choice to promote the social development. It tries to explore traditional national sports value of the security system in depth so as to promote the development of traditional national sports value to contribute.
Corrosion Resistance of Mg-Li Alloys Subjected to Different Heat Treatment
Authors: Fang D.R. , Liu F.F. , Quan Li Wei , Yang Jing
Published: October 2014

Casting Mg-Li alloy samples were subjected to annealing and aging treatment respectively, and the corrosion resistance of different samples was investigated by immersion test and electrochemical impedance spectroscopy measurement in 3.5% NaCl solution. The results show that the corrosion resistance of the as-cast sample is the best,the aged sample is the second, and the annealed sample is the worst to resist corrosion.
On Trend and Countermeasure of Subjectivity Ideological Education of College Students
Authors: Li Chun Lin , Wang Yi Ning
Published: October 2014

By studying the occurring process of ideological education of college students and exploring the basic connotation and development trend of ideological education of college students subjectivity, this paper analyzes the necessity and raises the measures and countermeasures should be taken of subjectivity ideological education of contemporary college students.
Study on Improving the In-Class Teaching Ability of Young Teachers in Science and Engineering Universities and Colleges
Authors: He Gui Qing , Feng Xiao Yi
Published: October 2014

With young teachers as the study object and with the aim to improve their in-class teaching ability, this paper conducts studies centering on the weaknesses of young teachers in science and engineering universities and colleges, i.e. their severe lack of teaching experiences and their mistaking scientific research capabilities for teaching ability. Then it comes upon new methods to improve the in-class teaching ability of young teachers, which can be summarized as education orientation and devotion. The research findings contain some innovative thoughts and are theoretically valuable for dissemination and practically feasible.
The Application of Virtual Reality in Engineering Education: A Case Study of the Virtual Storage Cavern System
Authors: Wang Wen Kang , Li Sheng Bo , Miao Jian Gang , Deng An Zhong , Wang Jian Guo , Song Nan
Published: October 2014

With the development in virtual reality technology, it has been applied in kinds of fields, e.g. education and engineering. This article introduces the concept and basic features of virtual reality, the application of VR in education and engineering, the building procedures and the functions of the virtual system with the case of the virtual Storage Cavern system. The system is consisted of four parts which enables students to understand and grasp the basic operation, maintenance, and standard accident responses more effectively than other teaching methods.
The Exploration of the Adult Higher Education’s Location in the Ordinary Colleges and Universities
Authors: Li Bing Jie
Published: October 2014

the Developing directions The 21st century education was construction of learning society and constructing lifelong education system, adult higher education has become an important part of socialized lifelong education system in common colleges and universities, facing a rare developing opportunities and challenges at the same time. This paper expounds the problem of adult higher education needs to be studied in common colleges and universities from the present situation, analyzes the influence factors of adult higher education in common colleges and universities, and puts forward the countermeasures of further development.
Double Game Theory: Be Described by China's Accession to the WTO and the Relations between Taiwan and the United States
Authors: Zheng Lei , Peng Yi
Published: October 2014

Double Game theory attempts to combine the two levels of international relations, and explain international relations with the interaction of domestic level and the international level. The main contents of this theory was born from that background, theoretical aspects of this theory are introduced in this paper. Finally, be explained by the two cases of China's WTO accession and the relations between U.S. and Taiwan.
Financial Management System Design of Guangxi Colleges and Universities
Authors: Qin Huan Chang
Published: October 2014

With the rapid development of information technology, improvements on financial management system in colleges and universities are required. Based on analyzing the characteristics of the financial management system in Guangxi colleges and universities, the work optimized the procedure of financial management. With financial processing module as the core, 8 subsystem modules are designed including student finance subsystem, wages management subsystem, to achieve intelligent financial management.Funded project: 12th 5-year plan of Guangxi science of education, one of the research findings in the special issue “Research on the Establishment of Financial Management System in Colleges and Universities” (Grant No. 2013ZCW022) of 2013 Guangxi educational financial management research.
In the Engineering Project of Legal Risk Control
Authors: Liu Jin Ping
Published: October 2014

The importance and urgency of construction engineering project risk management is in the process of China's construction industry in line with international standards gradually emerge. Construction project risk management is to determine the needs of the market economy system. With the rapid development of modern industry and modern science and technology, both in developed countries and developing spend a lot of money on basic construction. Therefore engineering construction project has the characteristics of risk big uncertainty, risk, etc. So we should strengthen the construction of the project risk management, is conducive to capital construction and development of the national economy in our country. This article focus on the legal risks in the process of project bidding for the prevention and control.
State-Owned Banks Risk Management Research
Authors: Guo Zhen
Published: October 2014

This paper mainly studies the concept of state-owned bank's risk and risk management, the state-owned Banks' risk types and western state-owned banks risk management theory. Through the observation of the state-owned Banks risk management status qua in our country at present stage analysis, find out the problems that exist in the state-owned Banks' risk management at the present stage in China and the insufficiency, in the understanding of problems gradually put forward the corresponding improvement to our country state-owned Banks' risk management methods and countermeasures.
The Economic Analysis of Applying Top-Down Method on the Different Structure Types and Construction Methods
Authors: Fang Guang Xiu , Jin Zheng Chao
Published: October 2014

Through the subterranean layer’s floor height and beamless slab’s height、SPS、Top-Down method, we should check up the economical slab structure form. According to Patand method、Horizontal materials support method、Erect structure’s minimum、building‵s beforehand construction、core and lamp construction method we can choose the Top-Down method and through the construction site example’s economical choose the right method. For example cut down the time limit for the project and reduce the subterranean layer’s height、the cost of the basement so that achieve the reasonable structure form.Key words: beamless slab structure; Top-Down method; choose the method; economical analysis.
The Fact Research of the Equipment and Facilities Integrated Management IT System for Chinese Oil Company
Authors: Wang Nan , Sha Jing Hua
Published: October 2014

A Chinese oil company realized millions of tons of oil and gas productivity to meet the target of twelfth 5 years plan. It faces many big challenges while fast developing. We need to finish the asset integrated management system, strengthen the key equipment’s management and ensure safety operation. This paper is based on Asset integrated management implementation and risk management theory, to study the information system and IT infrastructure, to provide the evidence for leaders decision making. It can guide the business development and support the improvement, to make the data standardization, control the process and enhance the management and performance assessment ability for the corporation. The article uses the factor research method based on paper survey to analyze the data and IT system. It is divided three parts: background and requirement analysis, infrastructure design and development roadmap. It not only proposed that how to build AIM IT system, but also make the investment and returning analysis. From the degree of IT supporting business, this paper replies the problem of management increasing of National Company and Assets Management Committee.
3D Numerical Simulation on Failure of Cement Sheath of Macondo Well-#1 in Deep Water Gulf of Mexico
Authors: Shen Xin Pu , Wang Xiao Chun
Published: October 2014

Aim of this work is to provide a quantitative solution which clarifies the integrity of cement sheath under given underground environmental conditions at bottom section of Macondo well #1 in deep water Gulf of Mexico. With three-dimensional Finite Element Method, mechanical behavior of the model for Macondo #1 well has been investigated, with particular concerns on continuum damage variable and pore pressure distribution within interface element. Quantitative results are obtained for distribution of mechanical variables. Principal conclusions are: 1) With regular properties of cement material, it is shown that the integrity of cement ring is good, no damage could occur within interface elements, and consequently no oil could escape through cement ring. 2) With poor mechanical properties of weak cement, which could be true because of disturbance occurred in its setting process, there are two damage bands existing within interface elements. These two damage bands form two channels at where values of pore pressure are obviously higher than that its neighboring matrix. These phenomena indicate that oil could escape through these interface elements.