bluuebunny/crossref_metadata_2025 huggingface dataset:
Seismic Retrofitting of School Facilities Using Attaching and Wrapping Composite Materials
Authors: Park Choon Wook , Park Ik Hun , Kim Dong Hwi , Choi Yeol
Published: May 2014

An experimental and analytical study have been conducted for the shear reinforcing method of RC beam by axis and horizontal axis load using attaching composite beam. Based on the previous research, in this study, Design examples are given to show the performance evaluation for the column reinforcing of old school buildings using nonlinear analysis is going to be conducted and strengthening method is going to be on the market after their performance is proved by the test.
A Study on the Effect of Surface-Treated Coarse Recycled Concrete Aggregate (RCA) on the Compressive Strength of Concrete
Authors: Ismail Sallehan , Mahyuddin Ramli
Published: May 2014

This paper reports the experimental works performed to improve the properties of recycled concrete aggregate (RCA) by using different acid molarities at low concentration as agent for surface treatment. The effects of using RCA after treatment on the improvement in the strength of concrete were evaluated and compared. The findings reveal that this treatment can enhance the physical and mechanical properties of RCA. Moreover, treated RCA particles can significantly promote surface contact between the new cement paste and the aggregate, thereby improving the strength of concrete.
Effect of Metakaolin and PVA Fibres on the Workability and Mechanical Properties of Concrete
Authors: Khan Sadaqat Ullah , Nuruddin Muhd Fadhil , Shafiq Nasir , Ayub Tehmina
Published: May 2014

Locally produced metakaolin (MK) as the cement replacing material and PVA fibres has been used. The effect on workability and on the mechanical properties of concrete has been investigated. Total fifteen (15) mixes of concrete have been examined using MK 5 to 10% and PVA fibres of aspect ratio 45, 60, 90 and 120 with 1% volume fraction. Three (03) mixes without PVA fibre have been used as control mixes. For each mix, test for slump, cube compressive strength and splitting tensile strength has been performed. It has been found that MK and PVA fibres causes decrease in slump but use of MK and PVA fibres together improves the workability. The use of MK and PVA fibres has advantageous in increasing compressive strength and splitting tensile strength.
Natural Energy Efficient Materials for Rock Cut Architecture in Case of Kandovan, Iran
Authors: Rostam Nasim Gholami , Hojjati Asma , Mahdavinejad Mohammadjavad , Mirlohi Mina
Published: May 2014

Endogenous materials open a learning window toward contemporary architects to use ancient wisdom to develop a more sustainable architecture. Regarding to aim of this research, this paper is to analyze interaction of adoption of ancient materials and a more efficient architectural space. The result of paper shows that the usage of natural materials in rock cu architecture of Kandovan can be considered as a way to a more energy efficient architecture which presents interaction of energy efficient materials and sustainable architecture.
Lessons from Sukur Vernacular Architecture: A Building Material Perspective
Authors: Dodo Yakubu Aminu , Ahmad Mohd Hamdan , Dodo Mansir , Bashir Faizah Mohammed , Shika Suleiman Aliyu
Published: May 2014

This study presents the lessons from the vernaculars Architecture of sukur kingdom with a focus on the use of building materials as a sustainable means for solving problems facing present-day architecture in issue of sustainability; in particular the critical housing situation in the developing countries. Through a case study of the ancient vernacular Architecture of sukur the result shows that stakeholders in the construction industry could reflect on how this building materials and the techniques in operation in their region by translating it in a modern way to address those striking design problems through solving them from the masters builders.
Critical Factors that Lead to Green Building Operations and Maintenance Problems in Malaysia: A Preliminary Study
Authors: Zainol Nurul Nadiah , Mohammad Izran Sarrazin , Baba Maizan , Woon Neo Bee , Ramli Nur Aqlima , Nazri Abdul Qayyum , Lokman Muhamad Amir Afiq
Published: May 2014

This paper discusses the factors that lead to green buildings operations and maintenance (O&M) problems in Malaysia. Several factors that lead to complexities in managing and maintaining green buildings have been highlighted by several scholars and practitioners in the construction industry. However, the criticality of these factors has yet to be empirically explored in the Malaysian context. A questionnaire survey was carried out involving green building maintenance management teams and Green Building Index (GBI) facilitators in Malaysia. Frequency and criticality index calculations were carried out to rank the factors according to level of criticality. The result indicated that the most critical factor that leads to green building O&M problem is the failure to consider the aspect of maintainability during the design stage. It is hoped that the findings of this study will shed light to green building designers and management teams on the critical aspects that demand scrutiny and consideration for successful O&M of green buildings in Malaysia.
Utilization of Waste Non-Metallic Printed Circuit Board Fractions (NMPCB) as Aggregate to Create Green Concrete
Authors: Kariminia Maysam , Peirovi Mohammad , Jamalpour Saeed , Aminian Nima
Published: May 2014

In this research, to present a practical solution for disposal of Waste Non-metallic printed circuit board fractions (NMPCB), this material replaced 5, 10, 15 and 20% by weight of the coarse aggregate of control concrete. Results showed that consistency of fresh concrete decreased with increase in replace percentage. Bulk density of specimens falls by using (NMPCB), Compressive strength, static modulus of elasticity and flexural strength have decreased in specimens containing waste material. Durability properties, water absorption has increase, and Special electrical resistance has decrease in specimens containing (NMPCB). So, by notice to experimental results and environmental effect of (NMPCB), the best replacing percentage of (NMPCB) with coarse aggregate of control concrete is up to 10%.
Research on Innovative Technologies for Construction of Alien & Large-Scale Aluminum/Wood Window
Authors: Shao Jun Yi , Wang Dong
Published: May 2014

New building materials alien & large-scale aluminum/wood window with the features of different shapes and large scale is a new direction in the application of civil and commercial building. The traditional method of construction and installation is prone to a lot of quality issues. If measures cannot be promptly taken to deal with or prevent these aspects, which will inevitably affect use function, durability and aesthetics, while maintenance is difficult, meantime resulting in increased costs. Thus, considering the safe use, durability and exterior performance, the project quality must be improved. This paper makes related research about the quality issues, proposes corresponding solutions and provides a complete set of construction technology processes. At last, through engineering case analysis the economic and social benefits.
Thermal Energy Storage Properties of Hybrid Nanocomposite – Embedded Phase Change Material for Sustainable Buildings
Authors: Parameshwaran Rajagolalan , Kalaiselvam Siva
Published: May 2014

The thermal properties of the new copper–titania hybrid nanocomposite embedded organic ester phase change material (HNPCM) were analyzed experimentally. The surface functionalized hybrid nanocomposite (HyNC) embedded into the PCM has effectively created the densely packed network of thermal interfaces in the PCM matrix layers. The experimental results suggest that, the incorporation of the HyNC has enabled the HNPCM to exhibit improved thermal conductivity (0.347 W/m K), congruent phase transition temperature (freezing: 33.53ᵒC, melting: 35.32 ᵒC), high latent heat capacity (freezing: 109.05 kJ/kg, melting: 109.14 kJ/kg) and considerable reduction in (freezing time: 21.2%, melting time: 29.2%). The improved thermal properties being achieved facilitate the HNPCM to be considered as a viable thermal storage material for high performance and sustainable building cooling and heating applications.
Landscape Design as an Added Value to Real Estate Development in Klang Valley
Authors: Hussain Mohd Ramzi Mohd , Tukiman Izawati , Zen Ismawi Hj.
Published: May 2014

The aim of the paper is to investigate the importance of landscape design in the planning and designing of a residential property in Klang Valley. It has been proven that proper landscape planning and design with the sustainable concept and approach help to create conducive and responsive environment of residential properties. The paper employed quantitative approaches which includes i) a questionnaire survey; and ii) an observation. This empirical study is based on the findings of case studies conducted on several residential areas in Klang Valley. The findings show that the residents have very clear ideas both on how much green space is really important in residential areas in order to create a sustainable residential environment. Despite the absence of public actions in terms of providing information, encouraging participations in the survey and promoting awareness by those interviewed have shown considerable interest in promoting landscape design to be applied in real estate development. The perceptions of the quality and quantity of landscape designs in residential areas and how landscape design can influence the values of real estate developments especially in Klang Valley can be further researched for future study.
Development of Local Weighting Factors in the Context of LCIA
Authors: Oztas Saniye Karaman , Tanacan Leyla
Published: May 2014

Life Cycle Impact Assessment (LCIA) is a phase of the Life Cycle Assessment (LCA) in order to quantify various environmental impacts based on the inventory analysis. Weighting although is not the mandatory element of LCIA is the element in which local data becomes important. Potential environmental impacts and the importance of particular impacts can be quite significant among the countries or regions. Determination of the importance degree is possible by weighting of the selected environmental impact categories. Therefore, this study aimed to develop local weighting factors (WFs) by taking the environmental issues into consideration for the building materials produced in Turkey. And 11 environmental impact categories such as global warming, ozone depletion, acidification, photochemical ozone formation, eutrophication, fossil fuel depletion, mineral resource depletion, water depletion, land use, indoor air quality and waste were selected considering environmental impacts caused by the building materials and environmental issues in Turkey. And WFs of these categories for Turkey were determined by using a panel approach. Thus, it can be possible to assess environmental impacts of building materials by using local data.
The Cooling Effect of Tree Canopy on Thermal Environment in View of Enthalpy
Authors: Huang Chih Hong , Chien Yu Lun , Hunag Yi Ting
Published: May 2014

The influence of vegetation canopy on environment is a blend of factors by blocking off evaporation and radiation which represents various degrees of effectiveness as an imperative cooling source in canopy, shade area and ground surface to improve the urban thermal environment. The research was conducted on the view of enthalpy to evaluate the cooling effect of vegetation commonly applied to temperature reduction strategy and to describe the changes of energy in the air more precisely. Trees on campus were the sample of the experiment, utilized to measure the temperature, humidity and enthalpy value of the canopy. The energy status within canopy was analyzed by Gird TIN Default from Map info Professional software. The disproportion of enthalpy value found between vegetation canopy and the control group was 6.43kJ/kg under the condition of outdoor temperature below 31°C and wind velocity less than 3m/s, equivalent to a temperature reduction of 4.86°C in the dry air of balanced state. Canopy center with 17.87kg, equivalent to 13900L, of lower enthalpy content can improve urban thermal environment by energy balancing if the volume of air was taken into account. The massive volume of cooling air between ground surface and the top of canopy has great potentials shown in vegetation as in improvement in thermal environment with the direction of wind field. It will benefit urban cities from creating massive volume of cooling source if the volume of cooling air can be employed as an assessment guide in the prospective planning and designing.
Cooling System of Zinc Roofed House by Using Circulated Water
Authors: Ab Rahman Rosdi , Kaamin Masiri , Suwandi Amir Khan , Kesot Mohd Jahaya , Zan Norah Mohd
Published: May 2014

Most traditional village houses uses corrugated zinc roofing due to economic reason. Thermal discomfort will result as zinc is a highly heat absorbing material. The space under the zinc covering will experience significant temperature increase proportional to the amount of supplied heat from sunlight, and this will further be aggravated if the ventilation is poor. The purpose of this study is to determine an alternative method to lower the temperature inside a zinc covered house. The proposed method is by splashing water throughout the area of the zinc roofing, where heat exchange process will occur upon contact. The process will dissipate heat from the zinc but will increase the water temperature. Heated water will then free fall by gravity into a tank through perforated tube with very fine aperture, as water droplet. By the same heat transfer process, ambient air will lower the water temperature, which will be recirculation back to the roof. To facilitate higher rate of water cooling, fan will be provided. The tests show the system was able to lower the temperature of the zinc covered house, and can reduce cost of cooling, thus suitable for low income rural population in Malaysia.
Experimental Investigation on the Moving-Air Path in Roof Models with Thermal Performances Evaluation
Authors: Chong Wen Tong , Al-Mamoon Abdullah , Poh Sin Chew
Published: May 2014

The indoor thermal comfort is the basic thing for each and every occupant, not only in tropical areas but also all over the world. It is necessary to make an energy efficient roof design and to improve the indoor condition of the building. This paper is focused on the roof design to develop the ventilation system so as to obtain low attic temperature without effecting the environment and keep the interior of the building cool. In the present study, four identical roof models were fabricated to carry out laboratory tests to evaluate their performances. In the roof models, aluminum (Al) tubes were used as a moving-air path (MAP) which acts as a ventilation channel. These channels allows the natural ventilation to take out hot air to the outside. In addition, an insulation layer and ventilation fans were integrated with the Al tubes to get better performance. For the combination of those features, the results revealed that the attic temperature was reduced remarkably, compared to the ordinary roof model. This comprehensive roof model will be the most suitable to the environment and applicable for its improved performance.
The Application of Solar District Heating and Water Heating Integrated System in Residential Quarter
Authors: Guan Zhen Zhong , Wang Chong Jie , Xue Yi Bing
Published: May 2014

A solar district heating and water heating integrated system has been designed and installed in a 5000m2 residential quarter. The integrated system uses vacuum glass tube solar collector to collect solar radiation energy, and uses water as heat medium. Solar energy provides almost 50% of the total heating energy consumption in winter. The inadequate part of energy can be provided by a steam heater which steam is provided by exhaust steam of the turbine from a power station nearby. The integrated system is operating automatically according to the solar radiation and working condition. Low-temperature floor radiation system is used as indoor heat radiator. At the same time, the system can provide 24h hot water supply. The integrated system has operated for 3 years, saves a large amount of energy, and receives good profit in both economical and environment.
Optimization of Preparation Process of Essential Oil of Baokening Granule-β-Cyclodextrin Inclusion by Orthogonal Test
Authors: Luo Fang , Qiao Shun Bin
Published: May 2014

To study optimum inclusion process conditions for essential oil from perilla and Pericarpium Citri Reticulatae in Baokening granule,the utilization ratio of volatile and the inclusion rate were determined to evaluate process conditions, and the condition was optimized with orthogonal design by the liquid-phase method in aqueous solution. The experiment results showed that the optimum preparation conditions for inclusion were established as: oil: ß-CD was 1:8, and ratio of amount of water to ß –CD was 10. The inclusion temperature and time were at 40°C and for 180 min. The yield is high in such optimum process condition and the inclusion effect is good.
Study on Laser Brazing for Copper
Authors: Wu Xiao Hong
Published: May 2014

The power at 400 Watts Nd: YAG laser is used for laser brazing on copper. By improving the process parameter,a good joint will be achieved. Because of the stainless steel material, more lasers will be absorbed, which can actualize the small power laser weld the thicker red copper. The test of the joint pull shows that the tensile strength of the copper brazing joint can reach more than 80% of its base mental.
Comparative Study of Copper Brazing with Ag-Cu-Zn and Ag-Cu-P Filler in Heat Treatment Furnace
Authors: Wang Rong , Jin Ya Juan
Published: May 2014

Wetting and spreading ability of Ag-Cu-Zn filler and Ag-Cu-P filler on copper surface under heat treatment furnace was studied. The microstructures of brazed joints of Ag-Cu-Zn and Ag-Cu-P filler under the same parameter were also observed. The microstructure shows that the wetting ability of Ag-Cu-Zn filler on the copper surface is better than Ag-Cu-P and its structure is uniformed and regulated. It is founded that there were obvious dissolution and diffusion between base metal and filler for the copper/Ag-Cu-Zn/copper joint, there were white and black eutectic structure formed in the joint interface.
Effect of Solution Treatment on Microstructures and Hardness of Mg-Gd-Y-Zr Alloy
Authors: Li Quan An , Chen Lei Lei , Liu Wen Chuang , Zhang Xing Yuan , Jiang Hui Zhen
Published: May 2014

The influence of the solution treatment (at the temperature of 500-520°C for 4-12 h) on microstructures and mechanical properties of Mg-Gd-Y-Zr alloy was investigated by means of optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Vickers hardness measurement. The as-cast alloy contains a microstructure consisting of α-Mg matrix, Mg5Gd phase and Mg24Y5phase. With increasing solution temperature and time, the quantity of the primary particles (Mg5Gd and Mg24Y5) in the alloy continually decreased, and the degree of recrystallization gradually increased, which result in the gradual decrease of the Vickers hardness of the solution-treated alloys.
Effect of Acetate on Electrodeposition of Manganese from Chloride Electrolyte with SeO2 Additives
Authors: Li Wen Po , Zuo Xiu Li , Liang Jin Hu , He Jia Hong , Zhang Sheng Tao
Published: May 2014

This paper deals with manganese electrodeposition from an chloride electrolyte without and with acetate and the resultant deposit properties. The addition of acetate to the plating bath reduces the rate of manganese deposition abserved under cyclic voltammetry and in situ Spectroscopic ellipsometry. The addition of acetate improves the corrosion resistance of the manganese deposits. The XRD pattern obtained for electrodeposited manganese show a pure α-Mn with polycrystalline nature no matter with or without acetate. A uniform and pore free surface was observed under SEM analysis in the two plating baths.
Electron Transport in Zigzag Graphene Nanoribbons with a Tetra-Vacancy Complex: A Perfect Spin Filter
Authors: Lu Wei , Ke San Huang
Published: May 2014

A novel doping scheme for graphene was recently realized experimentally by creating different vacancy complexes doped with a transition metal (TM) atom [nanoLett. 12, 141 (2012)]. This provides a new reliable way to modifying the electronic structure and transport property of graphene. Here, we show, by performing first-principles calculations, that the defect complex of TM@V4(a TM atom doped tetra-vacancy) in zigzag graphene nanoribbons (ZGNRs) can lead to a 100% spin-polarized electron transport in a wide energy range around the Fermi energy. Analyses show that this is due to the particular atomic structure of the TM@V4complex regardless of the species of the TM atom.
Preparation, Characterization and Conductivity of Solid High-Proton Conductor Na7[CoW11O39Cd(H2O)]·12H2O
Authors: Chen Li Qiang , Lin Xiu Mei , Zhu Ming Xia , Dai Li Mei
Published: May 2014

A new solid high-proton conductor Na7[CoW11O39Cd (H2O)]·12H2O has been synthesized for the first time. The percentage composition of the product were determined by Inductively coupled plasma (ICP) and X-ray photoelectron spectroscopy (XPS). The product was characterized by infrared spectroscopy (IR) and X-ray diffraction (XRD), which indicate it possesses the Keggin structure. The TG-DTA curve shows the sequence of water loss in the compound, the amount of the loss, as well as the thermostability. Conductivity of the compound was investigated by four-electrode method at room temperature and different measuring temperatures, the results reveal that its proton conductivity is 4.87×10−4S·cm-1at 27oC and the activation energy for proton conduction is 15.31 kJ/mol.
Avoidance of Forbidden DNA Nanorobots Configurations in Patterned Immobilization of other Materials
Authors: Popov Vladimir
Published: May 2014

DNA nanorobots can be applied for patterned immobilization of other materials. However, for successful patterned immobilization, we need to design the self-organization process so that some shapes of DNA nanostructures are avoided. In this paper, we consider an approach to solve the problem of the avoidance of forbidden shapes of DNA nanorobots in patterned immobilization of other materials.
A Facile and Efficient Method to Prepare Exfoliated and Reduced Graphene Nanosheets by Detonation
Authors: Guo Yan Hua , Zhuo Dong Xian , Wu Li Xin , Ma Lin , Weng Zi Xiang , Wang Rui
Published: May 2014

A facile, efficient, and low energy consumption detonation method to prepare few-layered graphene nanosheets has been developed using graphite oxide as a precursor at detonation induced temperature as low as 100 °C . The composition and structure of as-produced few-layered graphenes were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Specific Surface (BET), Transmission Electron Microscopy (TEM), Raman Microscope, and Atomic Force Microscope (AFM). Results showed that the as-produced graphenes were transparent and few-layered with a high specific surface area (225.9 m2/g). The investigation opens a new road to prepare few-layered graphene nanosheets at low exfoliation temperature in a low-cost and facile way.
The Effects of Electroplating Conditions on the Morphology and Glucose Oxidation Performance of Cu2O/TiO2
Authors: Long Mei , Tan Lin , Tang Ai Dong
Published: May 2014

A series of Cu2O/TiO2electrodes for the enzyme-free glucose oxidation have been fabricated by secondary anodic oxidation combined electroplating method. The obtained nanocomposites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and their electrochemical behaviour measured by cyclic voltammetry (CV). The effects of preparation conditions on the morphology and performance of Cu2O/TiO2for enzyme-free oxidaton of glucose were studied. For the electrochemical deposition at the potential range of −0.4 to −0.8 V, Cu2+was electrochemically reduced to polyhedral Cu2O, accompanied by the simultaneous formation of Cu with a nanoparticle morphology. It was found that the reduced particles with Cu cooperated onto the Cu2O were completely covered on the top surface of TiO2nanotubes and showed a highest response current with a lower overpotential 0.5 V. The results indicate that the incorporation of Cu nanoparticles favors to improve the response current, which might find promising applications in biosensor and biological fuel cells.
Study on Fault Rule Prediction of Hydraulic System and its Accessories of Shipborne Aircraft
Authors: Li Ling , Wang Chao Yong , Zhao Pei Zhong , Li Xu Dong , Zhao Hong Qiang
Published: May 2014

Abstract: With the increase of the service time of shipborne aircraft, the overlarge impact load can affect the life of the hydraulic system accessories. At the same time, the vibration and the corrosion of the ser water will also affect negatively the accessories’ life. The accessories are the important composition of the hydraulic system. Therefore, it is necessary to study the possible faults and their rules. This paper aims to establish the suitable model to predict the faults by use of the FEM and experiments.
Energy Consumption Performance Study of New S-Shaped Hysteretic Damper
Authors: Xu Chao , Niu Yong Feng , Zhao Yong Xie
Published: May 2014

This paper supposes a S-shape low yield steel damper. Based on the mechanical behaviors of the damper, its analytical model is established. Meanwhile, the damper’s hysteretic characteristics are numerically simulated by the FEM ABAQUS to obtain the main mechanical parameters of this damper. These parameters are compared with the results from the established analytical model. Results indicate that the analytical model is a-greeable to the FEM analysis. In addition, Analytical results also show that the S-shape low yield damper pos-sesses superior mechanical behaviors and hysteretic characteristics to fit extremely for mitigating the vibrationof engineering structures.
Introduction of a Thermal Response Test (TRT) Apparatus Used for Measuring Underground Heat Exchanger Characteristics
Authors: Liu Yi , Shi Yang , Zhang Ya Ning
Published: May 2014

Abstract. A thermal response test (TRT) apparatus is introduced in this paper for determination of the performance of underground heat exchanger in ground-source heat pump system. The inlet and outlet temperatures of the underground heat exchanger can be real-time tested to obtain the heat transfer data. The apparatus was used to test a underground heat exchanger for its inlet and outlet temperatures in Red Star farm, Beian City, Heilongjiang province, China. The inlet and outlet temperatures varied in the ranges of 10.62~13.57°C and 9.01~11.88°C within 24 hours, respectively.
Elastic Modulus Influence on the Forming Precision of Grinding Tool Bended for the Aspherical Surface Grinding
Authors: Shang Chun Min , Zhang Dong Mei , Yang Jian Dong
Published: May 2014

Elastic modulus error is the key factor influencing to the forming precision of grinding tool bended in the aspheric processing. The mathematical model of the grinding tool bended has been established through mechanics and the mathematics method, the error formula has been inferred and the influence of elastic modulus error has been analyzed, the calculating example has been given. The result indicates had to confirm material’s elastic modulus value according to the precision request of workpiece in choosing grinding tool material and control it in the certain scope, thus guaranteed the grinding tool the forming precision, further improve the workpiece the face shape precision.
Effect of Carding Plate Gauge under the Licker-in of Carding Machine on Polyester Yarn Hairiness
Authors: Yu Xue Zhi , Sun Peng Zi
Published: May 2014

Effect of different gauge of pin carding plate and saw-tooth carding plate respectively installed under the licker-in of carding machine on polyester yarn hairiness was studied. The hairiness of polyester yarns produced in the condition of installing pin carding plate and saw-tooth carding plate under the licker-in at four different gauges were tested by YG172 yarn hairiness tester. The results show that the two kinds of carding plate at the gauge of 0.7mm are most beneficial to reducing the number of polyester yarn hairiness. When the pin carding plate gauge is 1.0mm and the saw-tooth carding plate gauge is 0.3mm, the number of polyester yarn hairiness is the most. As a whole, installing saw-tooth carding plate under the licker-in is more favorable for reducing the number of polyester yarn hairiness.
Design and Trial-Production of Emergency Power Supply System Battery Based on Chemical Hydrogen Production
Authors: Xiong Chun Hua , Zhou You Jie , Zheng Fa , Wang Gang , Wang Feng
Published: May 2014

Based on chemical on-line hydrogen production, the author proposes a technical solution of Emergency Power Supply System Battery,and the hydrogen supply system, fuel cell stack, the control system and the water-heat balance management system was presented, and the prototype of 1kw hydrogen battery was trial-producted through integrated and modularized design. The actual test shows that the continuous power supply time is over 4 hours. It can be used as the ideal emergency power supply equipments in emergency disaster relief actions.
Study on the Effect Evaluation of Spinescence Application on Segregating Gratings of Expressway - Taking Wu (Ding) – Kun (Ming) Expressway as Example
Authors: Li Yi Wei , Shen Yi , Meng Qiang
Published: May 2014

In order to evaluate the application effect of spinescence as an alternative to metal segregating gratings of expressway, the evaluation system is built. By using the methods of AHP and FCE the comprehensive isolation effect evaluation of Solanum deflexicarpum is carried out. The result shows that the comprehensive evaluation method can guide and enhance the effect of future spinescence application on segregating gratings engineering of expressway.
Fluctuations Response of Tall Building to Change of Aspect Ratio in Interference Building
Authors: You Ki Pyo , Kim Young Moon , You Jang Youl , Paek Sun Young
Published: May 2014

Wind loads on buildings in realistic environments may be considerably either increase or decrease by interference buildings. It is commonly known as interference effect. This effect depend on the geometry and arrangement of these structures. It is objective of this work to study the interference effects of the tall buildings which have the different aspect ratios, upstream terrain conditions, distance between adjacent structures and direction. The obstructing model used in this work have the aspect ratio of 2, 3 and 4 and the distances between adjacent buildings are 0.5B, 1.0B, 1.5B and 2.0B, which B is the width of the building. And the above experimental results were compared with experimental data measured on isolated building.
Historical and Cultural Connotation of the Architectural Wood Carving Ornament in the Ancestral Temple of Chen Family - With “Feast in Bronze Sparrow Terrace Held by Cao Cao” and “Jiantu Conference” as Examples
Authors: Chen Yi Ning
Published: May 2014

The paper aims to analyze the features of the craftsmanship and composition and study the architectural ornament art and cultural and aesthetic implication of the architectural wood carving of the Ancestral Temple of Chen Family, which is the key cultural site under the state protection.
Moulding Process Design of Artificial Purple Jade Ship Basing on Blast Furnace Slag
Authors: You Wei , Wang Shuai Shuai , Wang Yu Ge , Lin Qian , Yu Xiao Xia , Li Peng Fei
Published: May 2014

The blast furnace slag is an industrial solid waste in the production process, this paper deals with the blast furnace slag as moulding technology products -- artificial Purple Jade ship crafts high value-added main raw material preparation, analysis of the chemical composition of blast furnace slag and natural jade, moulding process for artificial Purple Jade ship blast furnace slag prepared were designed, including process analysis, press, die structure design, selection of heating system design, molding equipment checking. The molding method is suitable for the production of large quantities of artificial jade crafts, high production efficiency, so as to achieve a high added value utilization of blast furnace slag.
Nitrogen Oxides Reduction by Zeolite Sorbents in Manufacturing Use
Authors: Pandová Iveta
Published: May 2014

Manufacturing activities of people and combustion engines utilisation are accompanying by development of various gases, that are not natural part of atmosphere or their production exceedes limiting attributes specified for them. Burning fossil fill, fuelling by burning engines escape to atmosphere nitrogen oxides, carbon oxide, carbon dioxide, sulphur oxides, organic compounds as aldehydes, ketones, polycyclic aromatic hydrocarbons. At present the attention turnes primarily on so-called greenhouse gases and gases impierment stratospferic ozonous layer, between that are belong also nitrogen oxides, carbon dioxide, methane ,halogenic hydrocarbons. At concentration reduction of greenhouse gases partially sorbents are usable, which includes also zeolites.
Safety, Heath, and Environment (SHE) Case for Oil & Gas Operating Company
Authors: Yuan Wen Juan
Published: May 2014

This paper does a comprehensive research on SHE Case definition, objectives, standards, requirements and content involved in Oil & Gas operating company. The SHE case is developed as a demonstration that all necessary work has been carried out to ensure that risks have been reduced to ‘As Low As Reasonably Practicable’ (ALARP). Through research on SHE case requirements and content, we can see that SHE case can be used to prevent major accident.
Effects of Grazing on Reproductive Allocation of Elm in Horqin Sandy Land, Northeastern China
Authors: Tang Yi , Wang Xin Jun
Published: May 2014

Grazing, one of the most important disturbance in Northern China, influenced vegetation restoration on the aspects of population survival, community structure and landscape patterns. However, effects of grazing on elm trees (Ulmus pumila), the key species in climax community in Horqin Sandy Land, were not fully understood, especially on the aspects of reproductive allocation. Reproductive allocation was vital to affect seed production, which determined the number of seed source used for recruitment. Furthermore, recruitment regulated the population dynamic even to the community structure. To estimate effects of grazing on elm trees reproductive allocation, a field experiment was conducted in Wulanaodu, southern of Horqin Sandy Land. Elm trees suffering grazing with intensities were classified with diameter in breast (DBH). Current-year shoots, leaves and seeds in each tree mentioned above, were selected and measured in the laboratory respectively. The dry weight of them considered as biomass allocated to reproductive and vegetative growth. Our results showed that the reproductive allocation of early-matured and over-matured trees were 25.17% and 35.91% separately in closed land and were 42.48% and 60.03% in light grazed land correspondingly, indicating the reproductive allocation of early-matured and over-matured trees in closed land was significant lower than in grazed land (P<0.05). Meanwhile, matured trees devoted 71.15% of required resource to reproduction in closed land, and this ratio was 67.34% and 71.75% in light and heavy-grazed land, indicating the difference of reproductive allocation was not significant between the grazed and closed lands (P>0.05). Furthermore, matured trees devoted 71.75% of resource to seeds and the corresponding ratio was 60.03% and 42.48% in over-matured trees and early-matured trees, indicating matured trees significantly devoted more resource to reproduction than over-matured trees and early-matured trees (P<0.05). It is suggested that grazing improved the ratio of biomass allocation to reproduction.
Toxicity of Three Heavy Metal Pollutants of the Pharmaceutical Wastewater to Paramecium Caudatum
Authors: Gong Zi Lin , Chen Ying , Yan Yan , Pei Si Ying , Wu Di , Zhang Miao , Wang Qi
Published: May 2014

In order to provide information for biological monitoring of environmental pollution and help people to develop pharmaceutical wastewater pollutant monitoring and emission standard, in this paper, acute toxicity experiments of three heavy metal pollutants, Zn2+,Cd2+ and Hg2+ existed usually in pharmaceutical wastewater, were done and their 24hr LC50 on the Paramecium were got individually, safety thresholds were calculated. At the same time, impact of different concentration heavy metal ions on population growth curve of Paramecium caudatum were researched. Results indicated that the acute toxicity of Hg2+ are the strongest, and the population growth curve changed significantly by three different types under three heavy metal ions pressure.
Study on Particle Breakage of Coarse-Grained Soil Based on Large-Scale Triaxial Test
Authors: Chu Fu Yong
Published: May 2014

Using large-scale shearing device, isotropiclly consolidated-drained triaxial test under different confining pressures are performed for overburden material of ShuangJiangKou earth dam which relative density is 0.8. The relationship between particle breakage of coarse-grained soil and input plastic work under loading and between particle breakage and confining pressure and between particle breakage and strength of coarse-grained soil. The results show that the particle breakage of coarse-grained soil and the input plastic work under loading is closely related. The particle breakage of coarse-grained soil increase with the input plastic work and there is a relationship of power function betweenBgandWp. the increase of confining pressure will lead to the increase of particle breakage of coarse-grained soil, and there is a relationship of power function betweenBgand. the increase of particle breakage of coarse-grained soil will lead to the decrease of strength of coarse-grained soil, and a relationship of linear betweenBgandφ.
Comparative Researches on the Provenances of Suspended Sediments in Different Reaches of Dongtiaoxi and Xitiaoxi Watershed
Authors: Lu Zhao Peng , Yuan Xu Yin , Wang Huan , Chen Hai Long , Xu Wen Wen
Published: May 2014

Dongtiaoxi and Xitiaoxi river are the two main discharge rivers of Taihu Lake. It is important to research the provenances of suspended sediments (SS) and the difference of the provenances. This paper establishes the geochemical model to quantify the proportions of SS sources with geochemical parameters, and then analyzes the contribution differences of the sources to SS in the basins and its reasons. The results show that the contribution of woodland is highest in the upper reaches of both Dongtiaoxi and Xitiaoxi basin, but the contribution of arable land has more differences. Arable land becomes a major contributor to the midstream of Dongtiaoxi and Xitiaoxi basin, while the contributions of woodland and urban land are larger in Dongtiaoxi basin. The SS contribution of urban land is highest in the downstream of Dongtiaoxi and Xitiaoxi basin, while the contribution of arable land is larger in Dongtiaoxi basin. During wet season and dry season, the differences of the sources contribution variations in Dongtiaoxi basin are not obvious, while that in Xitiaoxi basin are significantly obvious, that is the SS contributions of woodland and urban land in wet season are significantly higher than in dry season, while the contributions of arable land and bank sediment are on the contrary.
Experimental Study on Dynamic Characteristics of Self-Excited Oscillation Pulsed Jet
Authors: Tang Chuan Lin , Pei Jie , Hu Dong
Published: May 2014

The dynamic characteristics of the self-excited oscillation pulsed jet is tested by using pulsed jet impact variable cross-section beam in submerged conditions and make comparison with continuous jet, analyzing the effects of operating parameters and nozzle structure parameters on the dynamic characteristics of the pulsed jet. The result show that the oscillating frequency of jet decreases with the increase of cavity length while increases with the increase of the pump pressure. The energy of pulsed jet has obvious change with different cavity length.
The Study of Groundwater Modeling of Plain Area in Shiyang River Basin - I Groundwater System Conceptual Model Construction
Authors: Cheng Yu Fei , Li Yuan Hong , Hu Xiang Quan , Wang Jun De , Lu Shu Chao
Published: May 2014

In order to construct the groundwater numerical simulation model, the study area was determined on the basis of the geological and hydrogeological conditions. Taking Feflow as operating platform, combining GIS with Surfer software, a study area of the structure of three-dimensional aquifer model was established, realizing the 3D visualization of a large area of the complex geological content. Combined with the hydrogeological conditions, three-dimensional geological structure of the model further generalization. The result showed that the aquifer of the vertical was generalized into the unconfined aquifer; based on the characteristics of lithology, structure, parameters and distribution of recharge and discharge in groundwater system, the study area groundwater system was characterized by isotropic saturated-unsaturated numerical flow model, and the equilibrium composition of the elements was analysed in study area, the partition of the aquifer hydrogeological parameters was divided, lay the foundation for groundwater numerical model simulation.
The Study of Groundwater Modeling of Plain Area in Shiyang River Basin - II Groundwater Modeling and Validation
Authors: Cheng Yu Fei , Wang Jun De , Li Yuan Hong , Hu Xiang Quan , Lu Shu Chao
Published: May 2014

Groundwater is an important resource, it is used for variety of purposes in the inland river basins of arid western China. In recent years, the utilization ratio of surface water has been raised, the groundwater recharge rate from surface water has been reduced, and the aquifer depletion due to over-exploitation, which has led to the decline of groundwater levels and the degradation of eco-environments in the Shiyang River Basin, especially in Minqin. Therefore, the study on the groundwater levels change in recent years, as well as simulating and predicting groundwater levels in the future have gotten very important. The purpose of this study is to analyze the groundwater level variations of the study area. Basin on a conceptual groundwater model and observation groundwater level data, to establish the groundwater flow model by FEFLOW; simulated and validated the groundwater model. Finally the precision of model was evaluated. It was shown that the model could be used to predict the groundwater levels variation under different hypothesis conditions in Shiyang River Basin, which would provide the effective reference to the rational use and management of the groundwater.
ALB: A Methodology for the Simulation of the Producer-Consumer Problem
Authors: Xu Chang An
Published: May 2014

Stenographers agree that cacheable communications are an interesting new topic in the field of highly-available stochastic robotics, and experts concur. In fact, few electrical engineers would disagree with the development of wide-area networks. Our focus here is not on whether journaling file systems and gigabit switches can agree to surmount this challenge, but rather on introducing new symbiotic symmetries (ALB).
Optimized Research for Mobile Communication Strategy Based on Parallel Computing
Authors: Zhang Jian Wei , Yao Yun Lei
Published: May 2014

In order to improve the speed of simulation, one of the feasible approaches in mobile communications is parallel computing. In this paper, the operating environment will be achieved with MPICH2. Parallel computing is suitable for large scale computing tasks. An important factor which limits the speed-up ratio improve is that parallel computing cannot be achieved in communication process.Selecting the finite difference method, taking a two-dimensional steady-state heat distribution problem act as an example. By choosing domain decomposition method divide the entire data area into multiple sub-domains. Ultimately, the parallel program is designed in MPI’s Peer-to-Peer Model. By modifying the communication mode and the communication process, the speedup is substantial increased, closing to ideal values.
Synthesis and Characterization of A2+B4 Hyperbranched Polyesters with Hydroxyl End Groups
Authors: Saeed Haroon A.M. , Eltahir Yassir A. , Xia Yu Min , Wang Yi Min
Published: May 2014

Hydroxyl-terminated hyperbranched polyesters (HBPET) with aromatic-aliphatic structure were synthesized by melt polycondensation of isophthalic acid and pentaerythritol via A2+ B4 approach, at three different monomer mole ratios (A2/B4 =1:1, 1.5:1, 2:1, respectively). Fourier transform infrared (FTIR) spectroscopy indicated that the expected HBPET. The degree of branching of the HBPET was estimated to be between 0.39–0.45 by 1H-NMR and 13C-NMR measurement. The thermogravimetric analysis ( TGA ) measurement revealed that HBPET had a 10 % weight-loss at 350°C in N2.
Synthesis, Adsorption Behavior of a Maleamic Acid Cross-Linked β- Cyclodextrin Polymer for Removal of Basic Fuchsin in Aqueous Solution
Authors: Zhang Xiao Mei , Li Hong Zhan , Cao Man Li , Chen Chao Yue
Published: May 2014

A crosslinked β-cyclodextrin (β-CD) polymer (PCD) was synthesized by using maleamic acid as a crosslinked agent, and its adsorption behavior for basic fuchsin in aqueous solution was investigated. The adsorption isotherms could be well fitted by the Langmuir adsorption equation. On the basis of the Langmuir analysis, the maximum adsorption capacities were determined to be 33.56 mg·g-1 at 308K. The kinetics of adsorption followed the pseudo-second-order model.
New Design of Composite Materials Based on Scrap Rubber Matrix Reinforced with Epoxy and SiC
Authors: Zaimova Diana , Bayraktar Emin , Miskioglu Ibrahim , Katundi Dhurata , Dishovsky Nikolay
Published: May 2014

The aim of this study is to examine the influence of the scrap material and the additional elements on the structure and mechanical properties of multi-phase system. All of the composites were fabricated by mixing during 4h and then put in an ultrasonic dispersion for 1h. After that, a detail analyses are carried out by the means of Dynamic Mechanical Thermal Analysis (DMTA), Microindentation and scratch test. The structure was investigated by Scanning Electron Microscopy (SEM). The present study will help to optimize the parameters of this newly designed composite material allowing to find different possibilities for the industrial applications and to contribute in the war with the waste rubber materials.
Search for Rapid Quality Control of Ni-Cr-Mo Low Alloy Steels Using Multifaceted Approaches for Fracture Toughness Estimation
Authors: Ray Kalyan Kumar , Chegondi V.P.R. Jogayya , Roy Ushasi , Jha R.N.
Published: May 2014

This report aims to illustrate some multifaceted approaches for estimating fracture toughness of high-strength Ni-Cr-Mo low alloy steels in order to search for a suitable methodology for their rapid quality control in industrial production. The chemistry, microstructure, hardness, tensile and impact toughness properties of the selected AISI 4335 grade steels from different batches of commercial productions were assessed by standard methods. Measurement of plane strain fracture toughness (KIc), dynamic fracture toughness (KId) and fracture toughness using chevron notched bend bar specimens (KIcv) have been done on the selected steels. The magnitudes of KIc depend on the amount of inclusions and tramp elements in different batches of production. The values of KId estimated by LEFM approach and KIcv are in reasonably close agreement with KIc values but the latter methodology indicates the potential to be an alternate approach. Comparative assessments of KId and KIcv values with respect to KIc values of the steels have been made using concepts based on fracture mechanics and inherent characteristics of test parameters.