bluuebunny/crossref_metadata_2025 huggingface dataset:
A Successful Service Innovation Model for Shortening the Design Process
Authors: Bien Shoujen , Hsu Min Wei , Tsai Janson , Lo Tsaiyun
Published: October 2013

A brand company always comes a well-design corporate identity system (CIS) which preserve its management qualities with outcome products, packages, details, related people behaviors, all interaction etc. At present, Taiwans cultural creative industries play a very important role in constructing the soft collective infrastructure. This project try to prove the tailor-made model which a well design package system concerned new CIS will enhance good impression to wide consumers especially for small food and bakery industries. Research methods are selected both focus group and content analysis qualitatively gather experts opinions, quantitatively coding the key words. To accumulate form images related knowledge. The result can be applied to some Taiwan small business on Shorten design process for developing their products and commercial packages.
Numerical Simulation and Experimental Study on Oil-Water Separation of Fiber Bundle Filter
Authors: Liu Zhong Bin , Tang Juan , Wang Huan , Mao Jin
Published: October 2013

In order to research the filtration effects of fiber bundle filter with three kinds of different entrance position, the oil-water separation model of two-phase flow is established. Keep other parameters constant and perform an analysis in detail on the outlet concentration of oil content. Describe the influence that filtration rate brings, which varies among 20m/h, 40m/h and 60m/h. Then an experiment has been done to verify the result. It is shown that, the entrance position located on the top of filter can obtain better filtration effect than the other two. In view of the consideration for filter precision and processing capacity, the 40m/L filtration rate is more reasonable. Besides, its filtration cycle is 14h and purification rate is more than 92%.
Evaluation of Abaya Design Using Thermal Manikin
Authors: Tashkandi Salwa , Kanesalingam Sinnappoo , Wang Li Jing
Published: October 2013

The main objective of this research was to measure the thermal insulation using a thermal manikin dressed in various ensembles of clothing within the abaya. A range of clothing and abaya has been tested using a heated manikin. The thermal manikin experiments were conducted in dry condition. The ambient air temperature for the dry tests was set at 23oC and Relative Humidity at 50% and the mean skin temperatures averaged at 35oC. The results showed that the daily clothing and abaya affect the thermal insulation performance. It is uncomfortable to wear more layers of the daily wear clothing within the abaya. The abaya worn over the head thermally insulated slightly more than the abaya worn from the shoulder.
Research on Workstation-Oriented Production Logistics Optimization of Chinese Discrete Manufacturing Enterprises
Authors: Jiang Li , Wang Hong Yan
Published: October 2013

To optimize the production logistics in discrete manufacturing enterprises, we put forward a new thought of workstation-oriented production logistics for the solution of low picking efficiency and high delivery cost of JIT (Just in Time) mode. A distribution model is constructed to minimize the total distribution time in workshop. An improved genetic algorithm is designed to solve the proposed optimization model. Finally, a case study is presented to demonstrate the feasibility and validity of the proposed model.
Working Hours Calculation for CNC Milling Machining Center
Authors: Ma Zi Qin , Gu Meng , Zhang Peng , Sun Li , Xia Chang Qing
Published: October 2013

Working hours is a important link in product costing, it is also an important component of enterprise process management and Lean Production. The relationship of NC code and working hour was studied. As the corresponding mathematical models were established. It is more scientific, rationalization and precise for the CNC Milling Machining hours. An actual case was given.
Based on .Net Platform Framework Construction of MCN
Authors: Zhan Qing Hua
Published: October 2013

At present the mainstream way of exploiting application system is to use hierarchical structure, of which the most popular way is three-tier architecture of Web project development. While the problem is that .net platform have large amount of information and hardly to search any useful information. So this paper puts forward an improved MCN framework based on the traditional three-layer architecture pursuit of hierarchical design and a modular development approach, it solve the problem of large amount of code and low efficiency of database interaction in the traditional three-layer structure.
The Weakly Chain Transitive Maps
Authors: Meng Xin
Published: October 2013

Let (X,f) be a compact system. In this note we prove that if f satisfies Lipschitz condition, then f is totally weakly chain transitive if and only if f is weakly chain transitive by introducing the notion of the weak chain transitivity and the totally weak chain transitivity. The note also proves that the set-valued map of f is weakly chain transitive implies f is weakly chain transitive.
Structural Reliability Optimization Design Based on Artificial Neural Network
Authors: Sha Li Rong , Yang Yue
Published: October 2013

The ANN-based optimization design for considering fatigue reliability requirements on structure was proposed in this paper. The ANN-based response surface method was used to analysis fatigue reliability of the structure. The fatigue reliability requirements were taken as constraints while the structural weight as the objective function, the ANN model was performed to simulate the relationship between the fatigue reliability and geometry dimension of the structure, the optimization result of the structure with a minimum weight was obtained, thus can make economic benefit meanwhile ensure the safety of the structure.
An Activity and Resource Advisory System for Manufacturing Process Chains Selection at the early Stage of Product Development
Authors: Suteja The Jaya , Yarlagadda Prasad K.D.V. , Karim M. Azharul , Yan Cheng
Published: October 2013

Designers need to consider both the functional and production process requirements at the early stage of product development. A variety of the research works found in the literature has been proposed to assist designers in selecting the most viable manufacturing process chain. However, they do not provide any assistance for designers to evaluate the processes according to the particular circumstances of their company. This paper describes a framework of an Activity and Resource Advisory System (ARAS) that generates advice about the required activities and the possible resources for various manufacturing process chains. The system provides more insight, more flexibility, and a more holistic and suited approach for designers to evaluate and then select the most viable manufacturing process chain at the early stage of product development.
Analysis and Application on Coupling Operation of Solar Water Heating-Boiling System
Authors: Gao Lin Chao , Shen Sheng Qiang , Hao Qing Ying , Xiao Ju
Published: October 2013

The solar water heating and boiling systems with large area were designed and used for central bathing and drinking water project of a university in Zhengzhou. With oil/gas boiler auxiliary heat, the solar water heating-boiling system coupling operation method was investigated. The results show that this coupling operation method can effectively regulate hot and boiling water output in summer and winter by temperature partition, significantly increase the system efficiency to 0.56. The annualCOPvalue is 5.07, energy-saving effect is optimal, and the collector area configuration achieves its optimum. The system has obvious advantages in maintaining water quality, temperature, pressure stability and convenience of operation and reliability.Its running stably.
Profit Allocation and Realization in Regional Technology Transfer Alliance Based on Game Theory
Authors: Hu Dan , Yan Jing Dong
Published: October 2013

Regional technology transfer alliance consists of universities, scientific research institutions, enterprises, governments and technology agencies. Through the behavior game analysis of profit allocation between technology transfer participants, we propose that the profit allocation in regional technology transfer alliance is a consequence of gaming process among the participants. The governments and technology agencies should undertake the technology transfer market value assessment and market regulation to improve a sustained and stable cooperation in technology transfer between the technology supplier and demander. The transfer profit can realize by the ways of lump sum payment or payment by instalments, royalty payment, mixed royalty payment, production investment payment, service investment payment and mixed payment.
Preparation of Porous Titanium with High Porous Titanium and Surface Modification with High Concentration Alkaline Treatment
Authors: Fan Xing Ping
Published: October 2013

Porous titanium scaffolds with high porosity are fabricated by sintering. The bioactivity of the porous titanium has been improved by high concentration alkaline treatment. Through the modification, the titanium surface showed a network structures. The SBF immersion test indicates that apatite was formed on the porous titanium scaffold with high porosity after 10M/L alkali treatment in 12h. The results of study show the network structured endowed the porous titanium with bioactivity.
Preparation of a Multi Media Ceramsite Containing Magnetic Powder
Authors: Zhu Zhi Fang , Zhu Jian Zhong , Chen Jian Biao , Yang Chun Yan
Published: October 2013

Recently, using biological ceramsite to treat wastewater has received wide attention. In this study, use of fly ash, cement, calcium oxide, gypsum, expanded perlite as main components, magnetic powder and sodium bicarbonate as complex additive and sodium silicate solution as binder, a novel biological ceramsite was developed by steam curing method. Density, piled density, apparent density and void fraction of the biological ceramsite were tested. The optimal percentage of main components was obtained through the orthogonal experiments. In addition, the main affecting factors were also analyzed on the properties of the biological ceramsite. The results showed that the optimal percentage of magnetic powder, sodium bicarbonate, cement and expanded perlite was 10%, 10%, 10% and 5% respectively.The analysis of the results disclosed that the affecting factors of the density, the piled density, the apparent density and the void fraction were the expanded perlite, magnetic powder, cement (and magnetic powder), sodium bicarbonate, respectively.
Study the Effect of the Addition of HAp from Crocodile Bones on the Mechanical Properties of PLA/HAp Composites
Authors: Pawarangkool Kanyakorn , Keawwattana Wirunya
Published: October 2013

In this work, hydroxyapatite (HAp) was produced from crocodile bones by thermal process at 900°C. X-ray diffractometer (XRD), Fourier transform infrared spectrometer (FTIR) and Scanning electron microscope (SEM) were used to characterize the obtained HAp. Polylactic acid (PLA)/HAp composites were prepared by melt blending as follows: 95/5, 90/10 and 85/15 (weight ratio). The effect of the amount of HAp on the mechanical properties including tensile strength, modulus, elongation at break and impact strength of PLA/HAp composites was undertaken. It was found that tensile strength and elongation at break of the composites decreased with an increase of HAp content, while modulus and impact strength showed no significant effect.
Mechanical Connection between 8YSZ Ceramic and 7075 Aluminum Alloy
Authors: Du Zhi Ming , Qin Jin , Sun Yong Gen , Niu Jia Hong , Zhao Wang Qi
Published: October 2013

The 8YSZ ceramic coating material was prepared by hot-pressing sintering, and the mechanical connection between 8YSZ ceramic coating materials and 7075 aluminum alloy through the mosaic structure was presented as a new connection method. The change rules of mechanical properties such as density test, bending strength and toughness in different sintering process were researched. The results show that density is increased and grains are grown up gradually with the increasing sintering temperature without any microstructure defects. The optimal mechanical properties are obtained by sintering temperature at 1500°C.
Recent Research on Ternary Phase Diagram of Gold Alloy
Authors: Zhuang Dian Xiang , Xie Ming , Liu Lin Jing , Liu Man Men , Chen Yong Tai , Zhang Ji Ming , Yang You Cai , Hu Jie Qiong , Wang Sai Bei , Wang Song
Published: October 2013

phase diagram is known as Maps of Materials Science. However, the existing precious metal phase diagrams are far from able to meet the needs of the development of the precious metal materials science and technology. In this paper, the recent research achievements of Au-Ag-Y ternary phase diagram by experimental method and Au-Pd-Zr ternary phase diagram by multi-phase equilibrium thermodynamic calculation software were introduced.
Cause and Remedies of Bulge Particle Defect on Surface of Hot-Dip Galvanized Steel Sheets
Authors: Guo Tai Xiong , Dong Xue Qiang , Zhou Yi Lin , Jin Yong Qing
Published: October 2013

In view of the problem of bulge particle defect on the surface of hot-dip galvanized sheets, the causes were analyzed by investigating defect characteristics and surface cleanliness of cold-rolled steel sheets. The results show that the cause of bugle particle defect lies mainly in the residual iron on the surface of cold rolled steel sheets, which has not been cleaning off during degreasing and interfere the normal formation of coating. The bugle particle defect can be effectively prevented when the laser-textured work rollers of No.1 stand of HC tandem cold mills are replaced by smooth rollers, because the residual iron on the surface of cold rolled steel sheets can be reduced obviously.
Crack Failure Analysis on Kitchen Knife of 5Cr15MoV Steel
Authors: Chen Jia Xin
Published: October 2013

The cracking failure phenomenon of kitchen knife made by 5Cr15MoV steel was analyzed by chemical composition detection, hardness measurement, metallographic examination and SEM analysis methods. The results showed that the crack was mainly due to the organizational stress caused by carbide segregation in steel. Overhigh hardness and substandard chemical composition were the secondary cause of cracking.
The Characteristic of Ores and Concentrates of the Open Society "EVRAZ KGOK"
Authors: Dmitriev Andrey N. , Vitkina Galina Yu. , Petukhov R.V. , Kornilkov S.V. , Pelevin A.E. , Fishman Anatoly Yakovlevich , Sapozhnikova T.V. , Shunyaev K. Y.
Published: October 2013

The results of preliminary experimental researches of possibility of metallurgical processing of ores of Actually Kachkanarsky deposit are presented in the work.
Pitting Resistance of Domestic Super Martensitic Stainless Steel 00Cr13Ni5Mo2
Authors: Zhu Shi Dong , Li Jin Ling , Ma Hai Xia , Liu Li
Published: October 2013

Pitting resistance of super martensitic stainless steel 00Cr13Ni5Mo2 made in China has been investigated by employing electrochemical technology and chemical immersion methods. The results showed that pitting potential of super martensitic stainless steel decreased with the increasing of NaCl concentration and temperature, respectively. And corrosion rate of super martensitic stainless steel increased with the increasing of temperature. Furthermore, compared to super martensitic stainless steel made in Japan, the domestic one was better in terms of pitting potential, pitting corrosion rate and the density of the pits, but worse in terms of the depth of the pits.
Comparative Analysis of Steel Slag Characteristics and Treatment Process
Authors: Liao Jie Long , Zhang Zhao Hui , Ju Jian Tao , Zhao Fu Cai
Published: October 2013

Steel slag is hydraulic cementing material, which is mainly applicable approach to the production of cement, admixture of high performance concrete, road engineering. But as a result of hydration expansion of the free calcium oxide and free magnesium oxide and dicalcium silicate morphological changes which is contained in slag cause poor stability of steel slag used in engineering, the steel slag utilization is very low. Therefore, the key technology of steel slag treatment process is to improve the stability of steel slag. Steel slag is alkaline slag, with lower temperature, the viscosity increases sharply, the liquidity variation, it is one of the important factors affect the steel slag processing, According to the need for different liquidity of steel slag to choose the corresponding steel slag treatment technology. Tank-type hot disintegrating, Rotary cylinder technology processing available to small particle size, good steel slag separation, active promotion of slags, conducive to the comprehensive utilization of steel slag.
Study of the Impact Factors on Heavy Metals Migration of Stainless Steel Choppers
Authors: Chen Yuan
Published: October 2013

The factors on the impact of heavy metals migration (Nickel (Ni) and Chromium (Cr)) of stainless steel choppers were studied in this paper, including chemical composition of stainless steel choppers and surface treatment, sample soaking mode, soaking time and soaking temperature. The results shown that, which did not exist linear relationship between the chemical composition and heavy metal migration. Instead, the surface treatment process was the major impact factor. The heavy metals migration of stainless steel choppers reduced after surface treatment processes. Than the direct integral soaking mode, the slices soaking mode had a larger migration of heavy metals. The Nickel (Ni) and Chromium (Cr) migration increased with the immersion time and the immersion temperature. In summary, by controlling the processing and use method of the chopper can effectively control the migration of heavy metals.
Study of Viscosity and Stability of SiO2 Sol Prepared by Sol-Gel Method
Authors: Peng Kun , Yuanyin Ming Yue , Zhu Jia Jun , Li De Yi , Zhou Ling Ping
Published: October 2013

Silica sol was prepared using TEOS as the precursor and HCl as the catalyst by sol-gel process. The effects of the ratio of the reactants and temperature on the viscosity of SiO2 sol during the sol-gel processing were investigated and the reaction activated energy was calculated. With the increase of the EtoH/TEOS ration, the viscosity reduced, a higher viscosity can be obtained at the H2O/TEOS ratio of about 8. The viscosity increased and the gel time decreased with the increase of temperature, the activation energy of the formation of gel was about 73.8kJ/mol.
Self-Assembled Alcohol Sensor of In2O3 Nanorods
Authors: Zheng Zhao Qiang , Wu Huan Yu , Wang Bing
Published: October 2013

In2O3nanorods have been fabricated on Cr comb-shaped interdigitating electrodes using thermal evaporation of the mixed powders of In2O3and active carbon with Au catalysts. The morphology and structure of the prepared nanorods are determined on the basis of field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The self-assembly grown sensors of In2O3nanorods have excellent performance in sensor response to alcohol concentration of 500 ppm under operated temperature of 300°C.
Study on Adsorption of Crosslinked Starch Microspheres towards Heavy Metal Ions
Authors: Yang Li Yan , Guo Yi Hui , Yu Li Li , You Jing
Published: October 2013

A type of cross-linking starch microsphere (CSMs) has been synthesized via reversed phase suspension method. Crosslinked starch microsphere has good adsorption performance to metal ions in water. The adsorption kinetics of Co (II) on the CSMs, selectivity of adsorption CSMs towards Co (II),Cu (II),Pb (II),Cd (II) and adsorption effects of media towards Co (II) were investigated. The CSMs and its adsorption product were comparatively characterized by X-ray diffraction (XRD). The results showed that The adsorption rate is mainly controlled by liquid film diffusion, and the constant of adsorption rate is 0.0686min-1 at 308K. The crystal structure of the CSMs decreased greatly after the incorporation of Co (II). Co (II) has better adsorption selectivity on CSMs. Ions coexist and other substances in the solution have certain impact on adsorption. Those data are helpful for treatment of the wastewater containing heavy ions.
Antioxidant Activities of Flavonoids from Canavalia maritime
Authors: Deng Jian Chao , Niu Gai Gai , Li Lai Hao , Yang Xian Qing , Deng Yong Chuan , Wu Yan Yan , Hao Shu Xian , Qi Bo , Lin Wan Ling
Published: October 2013

Flavonoids was isolated from canavalia maritime by accelerated solvent extraction (ASE) coupled with high-speed counter-current chromatography (HSCCC). The antioxidant activities of flavonoids were investigated in vitro and evaluated by IC50. The results indicated that flavonoids possessed obvious reducing power and significant inhibitory effects on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical and superoxide radical. These results suggest that canavalia maritime flavonoids could be a suitable natural antioxidant for humans.
Modeling and Experimental Study of the Supporting Force of Water Striders Legs
Authors: Wang Qing Cheng , Yang Xiao Dong
Published: October 2013

In this paper, mechanical analysis of water striders legs floating on water surface was conducted, and the supporting force model of water striders flexible legs was established. The maximum dimple depth and maximum supporting force of water striders leg on water surface were measured. Furthermore, the maximum supporting forces of water striders fore leg, mid leg and hind leg were respectively calculated according to the established model, which were compared with the measured values, with error rate lower than 2.9%, 3.7% and 3.9% respectively.
Interaction of the Femtosecond Laser Pulses with the New Silica Nanocomposites Containing Au and CdS
Authors: Proschenko Dmitriy , Mayor Alexandr , Bukin Oleg , Golik Sergey , Chekhlenok Alexey , Postnova Irina , Shchipunov Yuri , Kulchin Yuri N.
Published: October 2013

Our work is dedicated for review of the synthesis of the new nanocomposite media with Au and CdS nanoparticles. Also formation of filament structure in presented samples as result of interaction with femtosecond laser pulses in depending on the component composition of the samples and the various experimental conditions was investigated.
Influence of Powder Structure on Decarburization and Microstructure of HVOF Sprayed WC-12wt.%Co Coatings
Authors: Ma Ning , Cheng Zhen Xiong , Wu Huan Tao , Ye Fu Xing
Published: October 2013

In order to examine the influences of tungsten carbide particle size on decarburization behavior and microstructure of HVOF sprayed WC-Co coating, four kinds of agglomerated WC-12wt.%Co powders were deposited on mild steel substrates by using a high velocity oxy-fuel (HVOF) spray system. The phase compositions and microstructure of the feedstock powders and sprayed coatings were investigated by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM), respectively. The results showed that the decarburization became more serious with the decreasing of tungsten carbide particle size in the starting powder. W phase was detected in the as-sprayed nanocomposite WC-12wt.%Co coating. All the coatings showed very compact microstructure with the hard phases embedded in Co matrix. The microstructure of HVOF sprayed WC-12wt.%Co coatings depended on the feedstock powder structure. The shape of tungsten carbide particles was rounder and the volume fraction of carbide phase decreased in coatings as the tungsten carbide particle size decreased.
Fabrication of Superhydrophobic Surfaces on Copper Substrates via Brush Plating Technique
Authors: Hu Ke , Xu Quan Xin , Yang Xiao Long
Published: October 2013

Superhydrophobic surfaces on metal substrates are often prepared via roughing the surfaces and lowering their surface energy. Composite brush plating technique is developed to prepare superhydrophobic n-SiO2/Ni brush plating composite coating on copper surfaces. Under the better process parameters, the water contact angle of the obtained superhydrophobic surface is approximately 160°, and the water sliding angle is less than 10°. The influences of plating voltage and plating time on the coating surface structure and hydrophobicity were discussed. The surface morphology and chemical composition were characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS).The results show that the prepared surfaces have the appearance of the uniform micron papilla-like structures, which are composed of submicron globular Ni particles covered with n-SiO2nanoscale villiform structures. These hierarchical micro/nanostructures are similar to the lotus leaf and play an important role in gaining superhydrophobicity. It is expected that this sample technique will be widely used for large-scale production of superhydrophobic engineering materials.
Research on Construction Control of Irregular Steel-Arch Cable-Stayed Combination Bridges
Authors: Zeng Xiang Lin , Zhao Yong Fei , Yuan Yuan , Gao Yu Feng
Published: October 2013

In order to evaluate the construction quality of a bridge, the finished line-shape and the actual stress state are two key parameters to check whether it’s consistent with the design requirements. However, there are many factors during the construction to make the actual completion state deviate from what is theoretically expected. The main purpose of construction control is to detect the deviations and thus correct them, and at the same time to predict and control the potential deviations so as that the completion state of a bridge (including the finished line-shape and structural internal force) could meet its design requirements. North Central Bridge in Taiyuan City is an irregular cable-stayed bridge which has five spans, five anti-symmetric steel arches and five anti-symmetric cable planes. As the bridge has a special structure shape and the control of the steel arch shape during the construction is quite difficult, the finite element analysis software is employed to analyze the construction process, therefore to make the rational construction control scheme of the arch shape and the stress state. The analysis results of this construction control scheme can be used as reference for others similar bridges in the future.
Experimental Research and Finite Element Analysis of BFRP Flexural Strengthening Efficiencies of Pre-Damaged Concrete Beams
Authors: Wang Hai Liang , Chang Wei , Yang Xin Lei
Published: October 2013

Six reinforced concrete beams, including 4 beams strengthened with BFRP sheets at different layer of BFRP sheets and 2 control beams, are tested to investigate the effect of layer of BFRP sheets on the ultimate flexural resistance and load-deflection response of the pre-damaged concrete beams strengthened with BFRP sheets. Results show that the flexural resistance of pre-damaged concrete beams increases along with the BFRP sheets layer increasing,but the flexural resistance enhances the degree not to assume the linear relations to the enforcement layer.Numerical simulation of the pre-damaged concrete beams strengthened with BFRP sheets is conducted by ANSYS, and the results of numerical simulation are compared with those of the test results. It turns out that the results of numerical simulation are in good agreement with the test results.
Experimental Research on Basalt Fiber Reinforced High-Strength Concrete Filled Steel Tubular Short Columns Subjected to Axial Compression Load
Authors: Wang Hai Liang , Li Hao
Published: October 2013

The tests of 5 basalt fiber reinforced high-strength concrete filled steel tubular short columns and 1 high-strength concrete filled steel tubular short column were carried out under axial compression load, and the influence of different dosages and length-diameter ratio of basalt fiber on the mechanical behavior of the basalt fiber reinforced high-strength concrete filled steel tubular short columns were discussed. The results indicated that the ultimate load-bearing capacity and the ductility of short columns were improved by adding basalt fiber in concrete, and the failure mode of short columns was not affected by adding BF in concrete.
Microscopic Mechanism Study on the Strength Effects of Pumice Powder to Cement Soil
Authors: Wen Yong Qin , Feng Xue Ying , Shen Xiang Dong , Cui Ya Ping
Published: October 2013

The microstructure of cement composite soil was studied with the scanning electron microscopy (SEM) experiment, the microcosmic mechanism of the strength increasing were tested in the lab with different additive quantity,different curing periods. The interaction of the cement composite soil with soil,water,cement grout were analyzed,the experimental results show that: the pumice to join makes the composite cement soil strength first increases then decreases, and there is an optimal dosage of 8%, along with the growth of the curing age, after 28 days, hydration reaction continues, cement composite soil age 60 days of gelling material than 28 days.
Diffusion Bonding of Mg-AZ31B/Al-6061 and Characteristics with Pressure and with no Pressure
Authors: Zhao Ming , Ju Dong Ying
Published: October 2013

The study is diffusion bonding of Mg-AZ31 and Al-6061 under pressure and no pressure by using the direct bonding method. After bonding process, characteristics phase in interface and bonding boundaries of Mg-AZ31/Al-6061 were characterized . The diffusion formation was observed by SEM. Aluminum solid solution and Mg17Al12 alloy phase was proved by analysis of XRD. In the process of measurement, crystalline structure of nearby interface characteristics phase was analyzed in detail by TEM. Based on the above analysis, the crystal model of the magnesium alloy and aluminum alloys was established under pressure, and the bonding mechanism was discussed. The results show that the bonding materials could be bonded under no pressure and the structure of bonding interface is more optimized than pressure.
Prediction of Underwater Wet Weld Seam Forming Based on ARX Model
Authors: Chen Bo , Feng Ji Cai
Published: October 2013

The exploration of marine resources is becoming more and more important, underwater weld technology is an important technology for the exploration. However, the underwater weld technology is very immature; the underwater weld quality is not as good as the offshore welding. To control and improve the underwater weld quality automatically, arc and visual sensors were used to obtain the information reflecting the weld quality, and ARX (AutoRegressive eXogenous) model was use to model the process, experiment result showed that the prediction results of the model were accurate enough for automatically controlling the process.
Electrostatic Spinning Preparation and Mechanical Properties of PLGA Fibers and Fiber Membrane
Authors: Jiang Le Lun , Huang Yong , Ling Jin Tian , Feng Zhang Qi , Qiao Xi Feng , Chen Ke Yun
Published: October 2013

PLGA (polylactic-co-glycolic acid) is an ideal material for biodegradable medical suture. PLGA fibers and fiber membrane was prepared by using electrostatic spinning, the surface morphology of PLGA fibers and fiber membranes was observed by SEM, and mechanical properties of PLGA fibers and fiber membranes were tested by self-developed micro-force loading system. Experimental results were found that the arrangement of PLGA fibers due to surface tension and friction between fibers was the main factor on mechanical properties of PLGA fibers. The tensile strength of two fibers in winding arrangement was 1.81 times of fibers arranged in parallel at a given number. The tensile strength of three fibers in winding arrangement was 1.25 times of fibers arranged in parallel at a given number. For 80.6 % porosity and 1.028-5.764 mm width PLGA fiber membranes, tensile strength was 1.06-1.47 MPa, tensile modulus was 9.14-13.6 MPa, and elongation at break was 10.8 % to 11.6 %. The tension of fiber membranes increased with its width.
Analysis of the Research Status of Tin Whisker's Influence on Lead-Free Soldering
Authors: Lu Qing Ru , Huang Hui , Chen De Bing
Published: October 2013

Strengthening the study on whiskers influence on the reliability of lead-free soldering can improve welding technology and contribute to the overall development of the electronics industry. This paper provides an overview of the study on lead-free solder technology and development, summaries the materials, processes and other reliability issues and welding reliability problems of lead-free solder, finally gives an overview of the research status of whiskers formation mechanism and reliability.
Effects of Asymmetrical Rotated Rectangular Basis in Two-Dimensional Gyromagnetic Photonic Crystals
Authors: Sun Hui Ling , Li Qing Bo , Chen Hua Bao , Chen Bao Ding
Published: October 2013

The twist effects of the bands during the rotation of rectangular bases are analysed in two-dimensional gyromagnetic photonic crystals with a square lattice. We find that extrema’s position have been dislocated from the high-symmetry line in the whole area of the first Brillouin zone (BZ), resulting in erroneous values for the band gap. These make us to calculate the whole first BZ to obtain the authentic band structure instead of boundary calculation.
Filtering Design and Analysis of Clamp-On Pressure Signals of High Pressure Fuel Pipe
Authors: Zhang Xiao Ming , Xu Feng , Liu Jian Min , Feng Fu Zhou
Published: October 2013

Measuring the clamp-on pressure of high pressure fuel pipe is a shortcut for obtaining injection parameters and fault diagnosis of the fuel injection pumps [1,. Based on the analysis of the fuel injection process of fuel injection pump, analyzed the differences of practical injection process and geometric injection process, and obtained the theory waveform feature points of diesel engine high pressure pipe fuel injection process. In order to obtain the clamp-on pressure waveform which feature points consistent with the theoretical waveform, designed the hardware filter based on MAX293. Considering the clamp-on pressure signal sometimes must also meet the requirements of no delay, designed frequency domain filter. Two filtering methods have reached the expected results.
A Method to Compensate Thermocouple Sensor Non-Linearity Based on Lagurre Orthogonal Polynomial Basis Functions Neural Network
Authors: Yu A Long , Dai Jin Qiao
Published: October 2013

This paper presents a new method to compensate thermocouple sensor non-linearity based on laguerre orthogonal polynomial basis functions neural network. The mathematical model is established based on laguerre artificial neural network for non-linearity compensation. The principle and training algorithms of laguerre orthogonal polynomial basis functions neural network are introduced. The results show that non-linearity compensation method has the advantages of high precision, good real time and strong robustness, etc. The maximum non-linearity error is 0.17%.
Fabrication and Hydrogen Sensing Property of In2O3 Nanotowers
Authors: Zheng Zhao Qiang , Wu Huan Yu , Wang Bing
Published: October 2013

In2O3nanotowers have been fabricated on Au item-shaped parallel electrodes using thermal evaporation of the mixed powders of In2O3and graphite with Au catalysts. The morphology and structure of the prepared nanorods are determined on the basis of field-emission scanning electron microscopy (FESEM) and x-ray diffraction (XRD). The self-assembly grown sensors of In2O3nanotowers have excellent performance in sensor response to hydrogen concentration of 1000 ppm under operated temperature of 300°C.
The Research of Learning Mechanism in Fault Diagnosis System of CNC Based on MAS
Authors: Zhang Han , Guo Rui Feng , Geng Cong
Published: October 2013

In order to solve problems in adaptive learning of diagnosis knowledge, the fault diagnosis system of computer numerical control (CNC) based on multi-agent system (MAS) is studied and the learning mechanism based on artificial immune network is proposed. The structural model of immune network and the corresponding artificial immune algorithm are also designed. The experiment result indicates that that proposed algorithm has faster learning speed and higher classification accuracy.
Selected Problems of the Asynchronous Drive Control with the Three-Phase Soft-Start System
Authors: Olesiak Krzysztof
Published: October 2013

The paper presents a design of a computer measuring system for the recording and visualisation of selected parameters of an AC motor. Such parameters are characterised and the principles of their configuration are stated for a three-phase soft-start system. The measuring experiments were performed on the drive during the start-up. The results are represented as time characteristics of the phase to-phase voltage, of phase current and of rotational speed.
Stiffness Evaluation of Fire Rescue Robot Suspension with Hydropneumatic Components
Authors: Bartnicki Adam , Łopatka Marian Janusz , Muszyński Tomasz , Rubiec Arkadiusz
Published: October 2013

The paper describes the wheeled rescue robot FRR drawn up by a team of Engineering Machines and Robots at Military University of Technology. It also shows a brief description of predicted for implementation tasks by FRR and probable problems that might occur and should be solved. Next the paper describes the method and the model which served to simulation evaluation of rigidity for robots suspension system. Describing the simulation model, used simplified assumptions and the method of calculating the basic parameters for model were described. The following chapter presents simulation that the model was tested through and some model results of the test. In the final phase of the article the conclusion and discussion is presented.
The Dynamic Analysis of a Torpedo-Shaped Underwater Vehicle as an Object with Superimposed Nonholonomic Constraints Treated as Control Laws
Authors: Ladyżyńska-Kozdraś Edyta
Published: October 2013

The paper presents the process of modeling and investigation of dynamic properties of automatically controlled underwater vehicle as an object with superimposed nonholonomic constraints. Based on torpedoes, a universal mathematical model of a robotic underwater vehicle comprising coupling dynamics of a controlled object with superimposed guidance has been built. This model is now being used to make numerical simulation program, that illustrates the behaviour of the object during guidance. A review on motion of the underwater vehicle considered in the inertial system associated with mother-ship.
Pharmacokinetics and skin concentrations of lincomycin after intravenous and oral administration to cats
Authors: Albarellos Gabriela A. , Montoya Laura , Denamiel Graciela A.A. , Passini Sabrina M. , Landoni María F.
Published: October 2013

The aim of the present study was to describe the plasma pharmacokinetic profile and skin concentrations of lincomycin after intravenous administration of a 15% solution and oral administration of 300 mg tablets at a dosing rate of 15 mg/kg to cats. Susceptibility of staphylococci (n = 31) and streptococci (n = 23) strains isolated from clinical cases was also determined. Lincomycin plasma and skin concentrations were determined by microbiological assay using Kocuria rhizophila ATCC 9341 as test microorganism. Susceptibility was established by the antimicrobial disc diffusion test. Individual lincomycin plasma concentration–time curves were analysed by a non-compartmental approach. After intravenous administration, volume of distribution, body clearance and elimination half-life were 0.97 L/kg ± 0.15 L/kg, 0.17 L/kg ± 0.06 L/h.kg and 4.20 h ± 1.12 h, respectively. After oral administration, peak plasma concentration, time of maximum plasma concentration and bioavailability were 22.52 µg/mL ± 10.97 µg/mL, 0.80 h ± 0.11 h and 81.78% ± 24.05%, respectively. Two hours after lincomycin administration, skin concentrations were 17.26 µg/mL ± 1.32 µg/mL (intravenous) and 16.58 µg/mL ± 0.90 µg/mL (oral). The corresponding skin: plasma ratios were 2.08 ± 0.47 (intravenous) and 1.84 ± 0.97 (oral). The majority of staphylococci and streptococci tested in this study were susceptible to lincosamides (87.09% and 69.56%, respectively). In conclusion, lincomycin administered orally at the assayed dose showed a good pharmacokinetic profile, with a long elimination half-life and effective skin concentration. Therefore, it could be a good first option for treating skin infections in cats.
Bootstrapped neural network models for analyzing the responses of broiler chicks to dietary protein and branched chain amino acids
Authors: Faridi A. , Golian A. , Mousavi A. Heravi , France J.
Published: October 2013

Faridi, A., Golian, A., Heravi Mousavi, A. and France, J. 2014. Bootstrapped neural network models for analyzing the responses of broiler chicks to dietary protein and branched chain amino acids. Can. J. Anim. Sci. 94: 79–85. Reliable prediction of avian responses to dietary nutrients is essential for planning, management, and optimization activities in poultry nutrition. In this study, two bootstrapped neural network (BNN) models, each containing 100 separated neural networks (SNN), were developed for predicting average daily gain (ADG) and feed efficiency (FE) of broiler chicks in response to intake of protein and branched chain amino acids (BCAA) in the starter period. Using a re-sampling method, 100 different batches of data were generated for both the ADG and FE sets. Starting with 270 data lines extracted from eight studies in the literature, SNN models were trained, tested, and validated with 136, 67, and 67 data lines, respectively. All 200 SNN models developed, along with their respective BNN ones, were subjected to optimization (to find the optimum dietary protein and BCAA levels that maximize ADG and FE). Statistical analysis indicated that based on R 2, the BNN models were more accurate in 76 and 56 cases (out of 100) compared with the SNN models developed for ADG and FE, respectively. Optimization of the BNN models showed protein, isoleucine, leucine, and valine requirements for maximum ADG were 231.80, 9.05, 14.03 and 10.90 g kg−1 of diet, respectively. Also, maximum FE was obtained when the diet contained 232.30, 9.07, 14.50, and 11.04 g kg−1 of protein, isoleucine, leucine, and valine, respectively. The results of this study suggest that in meta-analytic modelling, bootstrap re-sampling algorithms should be used to better analyze available data and thereby take full advantage of them. This issue is of importance in the animal sciences as producing reliable data is both expensive and time-consuming.
Manipulation of rhizosphere organisms to enhance glomalin production and C sequestration: Pitfalls and promises
Authors: Walley F. L. , Gillespie A. W. , Adetona Adekunbi B. , Germida J. J. , Farrell R. E.
Published: October 2013

Walley, F. L., Gillespie, A. W., Adetona, A. B., Germida, J. J. and Farrell, R. E. 2014. Manipulation of rhizosphere organisms to enhance glomalin production and C-sequestration: Pitfalls and promises. Can. J. Plant Sci. 94: 1025–1032. Arbuscular mycorrhizal fungi (AMF) reportedly produce glomalin, a glycoprotein that has the potential to increase soil carbon (C) and nitrogen (N) storage. We hypothesized that interactions between rhizosphere microorganisms, such as plant growth-promoting rhizobacteria (PGPR), and AMF, would influence glomalin production. Our objectives were to determine the effects of AMF/PGPR interactions on plant growth and glomalin production in the rhizosphere of pea (Pisum sativum L.) with the goal of enhancing C and N storage in the rhizosphere. One component of the study focussed on the molecular characterization of glomalin and glomalin-related soil protein (GRSP) using complementary synchrotron-based N and C X-ray absorption near-edge structure (XANES) spectroscopy, pyrolysis field ionization mass spectrometry (Py-FIMS), and proteomics techniques to characterize specific organic C and N fractions associated with glomalin production. Our research ultimately led us to conclude that the proteinaceous material extracted, and characterized in the literature, as GRSP is not exclusively of AMF origin. Our research supports the established concept that GRSP is important to soil quality, and C and N storage, irrespective of origin. However, efforts to manipulate this important soil C pool will remain compromised until we more clearly elucidate the chemical nature and origin of this resource.
Chemical composition and antibacterial activities ofJuniperus horizontalisessential oil
Authors: Eryiğit T. , Okut N. , Ekici K. , Yildirim B.
Published: October 2013

Eryiğit, T., Okut, N., Ekici, K. and Yildirim, B. 2014. Chemical composition and antibacterial activities of Juniperus horizontalis essential oil. Can. J. Plant Sci. 94: 323–327. In recent years, the screening of antibacterial activity has been the subject of much research, and the antibacterial activity of essential oils could be a promising subject for future investigation. In this study, the antibacterial activities of Juniperus horizontalis essential oils and their components were investigated. Essential oils were isolated using the hydro-distillation method and their components were analyzed by gas chromatography–mass spectrometry (GC-MS). The main compounds found in the oil of leaves were linalool (33.76%), P-cymene (23.20%), gamma-terpinene (8.67%), trans-sabinene hydrate (8.59%), thyme camphor (8.49%), carvol (5.08%) and borneol (4.22%). Juniperus horizontalis essential oils were evaluated for antibacterial activity against six bacterial strains using the disc diffusion method. The results indicate that the essential oil of J. horizontalis shows variable and significant antibacterial activities against the six tested bacteria species. The diameters of the inhibition zones formed for bacteria were measured. The lowest inhibition zone was 12 mm (sensitive) against Pseudomonas aeruginosa ATCC 10145 and the highest zone was 32 mm (extremely sensitive) against Enterococcus faecalis ATCC 29212.
Crustal 3-D geometry of the Kristineberg area (Sweden) with implications on VMS deposits
Authors: Skyttä P. , Bauer T. , Hermansson T. , Dehghannejad M. , Juhlin C. , García Juanatey M. , Hübert J. , Weihed P.
Published: October 2013

Abstract. Structural analysis of the Palaeoproterozoic volcanogenic massive sulfide (VMS) hosting Kristineberg area, Sweden, constrained by existing magnetotelluric (MT) and seismic reflection data, reveals that the complex geometry characterized by non-cylindrical antiformal structures is due to transpression along the termination of a major high-strain zone. Similar orientations of the host rock deformation fabrics and the VMS ore lenses indicate that the present-day geometry of the complex VMS deposits in the Kristineberg area may be attributed to tectonic transposition. The tectonic transposition was dominantly controlled by reverse shearing and related upright to overturned folding, with increasing contribution of strike-slip shearing and sub-horizontal flow towards greater crustal depths. Furthermore, the northerly dip of the previously recognized subsurface crustal reflector within the Kristineberg area is attributed to formation of crustal compartments with opposite polarities within the scale of the whole Skellefte district. The resulting structural framework of the main geological units is visualized in a 3-D model which is available as a 3-D PDF document through the publication website.
The Deluge of the MLIS Degree
Authors: Tulba Julie
Published: October 2013

The librarian job market is already oversaturated, yet each year, graduate schools across the country are releasing newly-minted MLIS degree holders into the workforce, many with slim prospects for employment in their field, let alone a position to help repay their expensive graduate school loans. It would behoove universities to follow the example of some graduate schools in other inundated fields and limit the number of MLIS applicants they admit until the job market for librarians improves and, thus, eliminate the reality of new graduates competing with librarians who have 10 plus years of experience for entry-level positions.