bluuebunny/crossref_metadata_2025 huggingface dataset:
Activation & Application Research in Concrete of Neimenggu High Aluminum Coal Gangue
Authors: Cheng Hai Li , Yang Fei Hua , Zhang Jie
Published: February 2012

In this paper, the heat-activated conditions of Neimenggu high aluminum coal gangue were studied, and then, the activated coal gangue as a supplementary cementitious material was used in concrete to investigate the application effect. The result shows that the optimal calcining temperature of high aluminum coal gangue is 800°C, the setting time of concrete was postponed, the slump was reduced and the resistance of concrete to chloride ion penetration was improved for the use of activated coal gangue. The compressive strength of concrete was enhanced when cement was replaced by 20%～30% activated coal gangue powder. Pozzolanic effect of activated coal gangue in the early age (7d) is higher and it can promote the hydration of cement with each other.
Compressive Strength, Chloride Diffusivity and Pore Structure of Non-Autoclaved Prestressed High-Strength Concrete with Metakaolin
Authors: Zeng Jun Jie , Shui Zhong He , Zhang Wan Ru , Leng Zheng
Published: February 2012

The experimental study was performed on the relationship between the mechanical and durability properties of high-strength concrete with metakaolin (MK) and slag. The compressive strength, chloride penetrability and pore structure of the OPC and the concrete with MK and slag were measured. It is found that MK can significantly increase the compressive strength, decrease the chloride ions migration coefficient and improve the pore structure of the steam cured high-strength concrete. The chloride resistance is improved obviously by 5% MK and further increase of the MK dosage performs a little change of the chloride migration coefficient. Better improvement effect on the mechanical and durability properties is obtained with the incorporation of 10% MK and 10% slag. Linear relationship is found between the coarse pore porosity and the compressive strength, while the chloride migration coefficient correlates well with the capillary pore volume.
Characterization and Preparation of Paraffin/Modified Inorganic Porous Materials Composites as Building Energy Storage Materials
Authors: Zhao Liang , Ma Rui Ying , Meng Xiang Lan , Wang Gang , Fang Xiang Chen
Published: February 2012

Paraffin and modified inorganic porous materials composites as phase change energy storage materials were prepared by absorbing paraffin in porous network of inorganic materials. In composite materials, paraffin was used as phase change material (PCM) for thermal energy storage, and γ-Al2O3 acted as supporting material, ethanol was solvent. A series of characterization were conducted to analyse and test the performance of the composite materials, and differential scanning calorimeter (DSC) results showed that the PCM-3 composite has the melting latent heat of 115.9 kJ/kg with melting temperature of 63.0°C. Due to the capillary and surface tension forces between paraffin and γ-Al2O3, the leakage of melted paraffin from the composites can be prevented. Several kinds of paraffin mixtures were also studied by adsorbing into the supporting materials, so that the composite energy storage materials with different phase change temperature can be used in the building wall to storage thermal of different regions. In a word, the paraffin/γ-Al2O3 composites have a good thermal stability and can be used repeatedly.
The Study on Energy Saving Equipment of Rural Houses in Central China
Authors: Li Xue Tao
Published: February 2012

Increasing investment on installation of construction equipment of energy saving and emission reduction in the new rural houses construction appropriately, it would improve the living conditions and enhance the living quality of rural residents significantly, which have very good economic and social benefits.
The Study of Emotional Design and Its Spatial Characteristics
Authors: Ma Hui , Wang Jian Shi
Published: February 2012

Effective investigation attempts at the relationship between emotion and spatial design have been made in this paper which lists the significant impact of emotion upon interior design, emphasizes the emotional elements in design and advocates an emotional design concept. This paper pinpoints the goal of emotional design by demonstrating with examples the emotional characteristics and discusses the interplay between substance and the mind It seeks poetic residence design concepts and aims at interior design development toward the future.
Subjective Evaluation of Acoustic Environment in Underground Spaces
Authors: Meng Qi , Kang Jian , Jin Hong
Published: February 2012

Previous studies have demonstrated that users’ evaluation of acoustic environment such as subjective loudness or acoustic comfort depends on a series of factors in a particular space, rather than only on sound pressure levels. In this study, more than 2800 interviews have been undertaken at underground spaces in Harbin, China, to find out influencing factors to users’ evaluation, considering both space conditions and demographical factors. Based on the analysis of case study results, it has been found that in underground spaces, background music is generally noticeable and preferred, and it is useful for psychologically ‘masking’ other less preferred sound sources. While there is a linear correlation between the measured LAeq and the subjective loudness, the relationship between the measured LAeq and the acoustic comfort evaluation is of a parabolic shape, and the acoustic comfort is the best when LAeq is around 65-70dB. There is no significant difference between different age groups, whereas people with a higher income level tend to feel that an underground space is nosier and less acoustically comfortable.
Analysis for Flow Stress Model of 33Mn2V Steel
Authors: Fan Hui , Wang Fu Zhong
Published: February 2012

Hot compressive deformation behavior of non-modulation 33Mn2V steel for oil well tube was studied by compression tests using Gleeble-1500 thermal simulation machine conducted at the temperatures from 750°Cto 1200°Cand at the strain rates of 0.01 s−1 to 0.16 s−1. Using non-linear regression method to establish a Kumar model to predict the hot deformation behavior of 33Mn2V steel. Results show that the errors of the Kumar model between experimental data and calculated results are less than 10%. The deformation activation energy of 342.1841kJ/ mol. The average dynamically recrystallized grain size reduces with decreasing temperature.
An Analysis of Embodied Carbon between Different Types of Residential Buildings in China
Authors: Yuan Lei , Qiu Jun Yuan
Published: February 2012

Using the method of lifecycle assessment (LCA) and building information model (BIM), this paper compares quantitatively the embodied carbon levels of three typical residential buildings: a five-storied townhouse, a fourteen-storied medium high-rise and a thirty-storied high-rise. This study consequently finds out that, in a specific period (i.e. from cradle to site), the medium high-rise emits the least embodied carbon and therefore is preferable in this respect.
Discussion on Properties and Microstructure of Geopolymer Concrete Containing Fly Ash and Recycled Aggregate
Authors: Shi Xiao Shuang , Wang Qing Yuan , Zhao Xiao Ling , Collins Frank
Published: February 2012

Construction materials dominate the main responsibility to maintain the environmental sustainable development in human’s activities. Geopolymer concrete containing fly ash and recycled aggregate is a new concrete which can reuse the by-product of power station and waste concrete, as well as reduce the production of cement which contribute a lot of carbon dioxide emission in the manufacturing process. In this paper, experiments were carried out to investigate the mechanical properties and microstructure of geopolymer concrete with different recycled aggregate contents. Six mixtures were designed including alkali-activated fly ash geopolymeric recycled concrete and corresponding ordinary concrete as the comparison. The compressive strength of the concrete with 0%, 50% and 100% recycled aggregates was tested. The microstructure of these concrete were investigated by petrographic microscope under transmit light. According to experimental results, the strength development and failure mechanism are discussed. Furthermore, the application of such geopolymer concrete is discussed and suggested.
On the Nonlinear Matrix Equation Based on Engineering Calculation
Authors: Gao Dong Jie
Published: February 2012

We consider the positive definite solution of the nonlinear matrix equation . We prove that the equation always has a unique positive definite solution. The iteration method for the equation is given.
Past Analysis of Architecture Design Based on the Concept of Ecology
Authors: Zhi Li Hui Zi , Wu Zu
Published: February 2012

this paper take the main pavilion of the 8th China (Chongqing) International Garden Expo for example, using Ecotect and other simulation software as research tools, starting from the radiation, shadow distribution and air environment to expand the architectural design process, According to the use of software to provide a scientific basis for the architectural design for designers.
Study on Strength, Shrinkage and Creep of Concrete Containing Ultrafine Fly Ash Composites
Authors: Liu Bao Ju , Xie You Jun
Published: February 2012

At steam curing and moist curing conditions, the mechanical properties of concrete with different fineness and different proportions ultrafine fly ash-slag composite were studied. The experimental results indicated that the addition of ultrafine fly ash-slag composite had improved the long term mechanical properties of steam-cured concrete. The concrete with ultrafine fly ash-slag composite has lower drying shrinkage and creep compared to that of control concrete.
Experimental Study of Splitting Tensile for Multi-Scale Polypropylene Fiber Concrete
Authors: Liang Ning Hui , Liu Xin Rong , Sun Ji
Published: February 2012

Through splitting tensile tests on 30 plain concrete and polypropylene fiber concrete specimens with the dimensions of 100mm × 100mm × 100mm , studied the influence of the different scales of polypropylene fiber and hybrid fiber on concrete splitting tensile strength and splitting tensile deformation. The results showed that: the splitting tensile strength of concrete for single-doped fine fiber had increased 7%~31%,for single-doped coarse fiber had increased 7%~39%,and mixing-doped coarse-fine fiber had increased 2%~50%. Doped-fiber can improve the concrete splitting tensile toughness, it's enhancement sort: mixing-doped coarse-fine fiber concrete > single-doped coarse fiber concrete > single-doped fine fiber concrete> plain concrete
Dry Effect of Cementitious Materials on Testing Results of X-Ray CT
Authors: Han Jian De , Sun Wei , Pan Gang Hua
Published: February 2012

In this study three-dimensional X-ray computed tomography (X-ray CT) is used to investigate the testing results differences of cement paste and mortar before and after drying. It can be found that the mean gray values of paste and mortar before drying are bigger than after drying, and the impact of drying on cement paste is more serious than mortar. In addition, the porosity of non-drying cement paste and mortar is 1.10% and 0.43%, while that of drying cement paste and mortar is 1.55% and 0.70%, respectively. So, the porosity of paste and mortar markedly increases after drying process. The numbers of pores of paste and mortar sharply increase after drying process in particular between 0.01mm3 and 0.1mm3. The impact of drying on smaller pores is more serious than bigger pores.
The Temperature Field Simulation during Laser Cladding Process
Authors: Jiang Qiu Yue
Published: February 2012

The mathematical model of the Temperature field of the power feeding laser cladding was found by the finite element method .To simulate the process of cladding temperature distribution, the simulation results and experimental results were conform, showed that this method can be used for controlling laser cladding process parameters by calculating the initial temperature and non-contact measurement of the temperature variation. Simulation results showed that the laser cladding process heat and cool speedy , The temperature gradient is large, the largest temperature gradient is in the vicinity of melt pool and the border of cladding layer and the substrate.
The Research of Aluminum Alloy Honeycomb Sandwich Panel Mechanical Properties in Out-Plane Compression Test
Authors: Hu Jin Ping
Published: February 2012

This paper first studied aluminum alloy honeycomb sandwich panel in out- plane static compress test.Through analyzing deformation characteristics, the loads-displacement relationship was obtained and are described by the average stress-strain curve. Secondly, using the Split Hopkinson Pressure Bar device of impact test, deformation behaviour，dynamic average stress-strain curve data and so on were got under different loading rates, thus learned impact dynamics characteristics of that.
Synthesis of Poly L-Glutamate Initiated by Triethanolamine
Authors: Zhang Zhi Ming , Wei Shi Qian , Li Ting Ting , Han Li Hua
Published: February 2012

With L-glutamic acid as raw materials, N-carboxy-L-glutamic acid-benzyl-anhydride (BLG-NCA) was synthesized by triethanolamine. With triethanolamine as the initiator in the anhydrous dichloromethane, ring-opening polymerization of BLG-NCA was initiated, poly-l-glutamic acid benzyl ester was obtained. The amount of initiators, molar ratio of monomer/initiators, reaction temperature and reaction time to the effect of poly-l-glutamic acid benzyl ester in the ring-opening polymerization of BLG-NCA were studied. At last, poly L-glutamate was got, after the debenzylation in HBr solution. Through infrared spectroscopy, Ubbelohde viscometer, 1H NMR spectra, polymerization product was characterized and analysized. Results showed that in dichloromethane, ring-opening polymerization of BLG-NCA could be initiated by triethanolamine.
Influence of Emergency Passenger Flow Distribution in Urban Rail Network
Authors: Hong Ling , Gao Jia , Xu Rui Hua
Published: February 2012

The emergency disposal of urban rail transit needs to accurately estimate the emergency range and total affected passenger flow volume. The urban rail transit network could be simplified to an abstract model which is easy to be analyst based on the graph theory method. Considering the actual network back-turning lines and vehicle storage tracks of urban rail network, the emergency range could be estimated effectively. The affected passenger flow could be classified as different kinds based on the different paths of passenger flow. The classification of passenger flow mainly includes “delay passenger flow”, “detour passenger flow” and “loss passenger flow”. Considering the emergency range, the different affected passenger flows could be superposed over time based on the abstract model, then the affected passenger flow volume and virtual loss time could be calculated out. The results could provide basis for the emergency disposal in urban rail transit. The example analysis is verified the feasibility of this method.
Research and Development Progress on Concrete Preparation with Seawater
Authors: Liu Rui Cui , Jiang Fu Yi , Liu Zi Quan
Published: February 2012

This document outlined the development of concrete mixing water at first. And then it discussed some properties of concrete prepared with adding sea water and impacts of sea water on effectiveness of concrete. The article also tried to explain some reasons of these impacts. The author emphasized on analyzing the effect to the function of concrete by using seawater as mixing water and the reasons and separately elaborated on the different effects to plain concretes and reinforced concretes. At last, the article predicted the development trend of using seawater as concrete mixing water.
Failure Predictions of Laminate under In-Plane Tensile Loading
Authors: Yang Yin Huan
Published: February 2012

Failure analysis of laminates is performed by progressive failure analysis method. A modified form of Hashin’s failure criterion by Shokrieh is used to detect the failure, where a sudden degradation model is proposed to reduce engineering material constants. The numerical analysis of composite laminates is implemented in ANSYS Parametric Design Language (APDL) with commercial finite element codes ANSYS. The method can predict the initiation and propagation of local damage and response of laminated composite structures from initial loading and ultimate failure. The model has been validated by comparing numerical results with existing experimental results. And then failure analysis specimen fabricated from M40J/Ag80 and investigation on influence of stacking sequences and fiber orientations have been performed by the proposed model.
Effects of Compositions on the Chloride Ion Permeability of Geopolymer Concrete
Authors: Wang Qing , Da Jing , Zhang Cun Bao , Ding Zhao Yang , Sui Zhi Tong
Published: February 2012

The three key oxide molar ratios of geopolymer concrete were studied in this paper: n(SiO2)/n(Al2O3)，n(Na2O)/n(Al2O3) and n(H2O)/n(Na2O). The effect of each oxide molar ratio was assessed by electric flux method. It was found that resistance to chloride ion of geopolymer was increased with increasing n(SiO2)/n(Al2O3).However, there was a limit beyond which this performance improved; it performed better with the increasing of n(Na2O)/n(Al2O3) but worse with the increasing of n(H2O)/n(Na2O). With the same amount of cementitious material, resistance to chloride ion of geopolymer concrete was better than that of common concrete.
Damping Characteristics of a Cantilever Plate Using Permanent Magnetic Constrained Layer Damping Strip Treatment
Authors: Li Ming , Zheng Hui Ming
Published: February 2012

Significant improvement of damping characteristics can be achieved by using the new class of magnetic constrained layer damping treatment (MCLD). This paper presents the damping properties of the first and second torsional mode for a five-layer cantilever rectangular plate treated with partial MCLD. The Rayleigh-Ritz method and Hamilton’s principle are employed in the analysis. We have chosen both single and segmented patches with different sizes. It can be observed that for the two modes single-patched MCLD treatment induces less improvement of damping characteristics especially for the short patch. The effects of calculation of parameters like placement strategies of discrete patches, the length of patches are analyzed and discussed. The results obtained from analytical show that the optimum location of the patch, for the torsional mode, is at edge of the plate. Favorable comparisons with the conventional passive constrained layer damping treatment (PCLD) on various special cases of the problem are obtained. The results demonstrate MCLD treatment still improvements over PCLD in damping structural vibrations.
Influence of Moisture Content and Loading Rate on Flexural Toughness of Fiber Reinforced Shotcrete Remarked
Authors: Ning Feng Wei , Ding Jian Tong , Su An Shuang , Cai Yue Bo
Published: February 2012

Influences of moisture content and loading rate on flexural toughness were experimentally studied for fiber reinforced shotcrete (FRSC) with steel fiber or macro synthetic polypropylene fiber. According to the four-point bending test method specified in ASTM C1609 and Chinese standard CECS 13, the flexural toughness of specimens after drying for 0h, 16h, 24h and 72h in condition of (20±2)°C and (60±5)% relative humidity was tested at a loading rate of 0.05 mm/min. For specimens after drying for 24h and 72h, flexural toughness was tested at loading rates of 0.05 mm/min, 0.10 mm/min, and 0.20 mm/min respectively. With the moisture content decreasing, the flexural toughness T100,2.0, first-peak flexural strength, and residual flexural strength at prescribed deflections of FRSC exhibited decreasing tendency. The specimens with 0.5 vol% of steel fiber showed higher T100,2.0 value than that with 0.9 vol% of macro synthetic fiber. The residual strength and flexural toughness of FRSC increased with the increase of loading rate.
Study on Compatibility of Polycarboxylates Superplasticizer with Different Kinds of Retarders
Authors: Gao Gui Bo , Yan Shi Tao , Wang Yong Wei , Liu Chuan Bo
Published: February 2012

In order to study the compatibility between polycarboxyIn order to study the compatibility between polycarboxylates superplasticizer (PC) and different kinds of retarders, sodium citrate (SC), sodium gluconate (SG), sodium hexametaphosphate (SH) and sucrose (SU) were compounded with PC respectively in the same proportion. The liquid degree and its loss of cement paste, the setting time of cement, the blending strength and compressive strength of mortar that admixed with different kinds of retarders were measured, and the influence mechanism of the compatibility between different kinds of retarders and PC were analyzed. The experiment results showed that it was benefit to the liquid degree of cement paste after SG or SH or SU was compounded with PC; The setting time of cement could prolonged more by SH or SU; Blending and compressive strength of mortar in different ages were enhanced in large extent after SG were adopted; The strength of mortar was reduced in early age and enhanced in small extent in mid-later age after SU was compounded. Comprehensively considering to the influence of liquid degree, setting time and strength, the compatibility of SG with PC is higher than other kinds of retarders.
High Velocity Impact Behaviour of Hybrid-Fiber Engineered Cementitious Composite Panels
Authors: Bell Joel , Zhang Yi Xia , Soe Khin , Hermes Phillip
Published: February 2012

High-velocity impact behaviour of hybrid-fibre engineered cementitious composite (ECC) panels subjected to an impact from a hardened steel, ogive-nosed projectile at velocities between 300-700 m/s is investigated and reported in this paper. The new ECC mix contains a proportion of 0.75% volume high-modulus steel fibres and 1.25% volume low modulus polyvinyl-alcohol (PVA) fibres. The mix is designed to achieve a desired balance between the strain hardening behaviour and impact resistance of material required for impact and blast resistant structures. The new hybrid-fibre ECC demonstrates its excellent capability for impact resistance and strong potential as a protective material with reduced impact damage and distributed micro cracking.
Production and Characterization of Bioemulsifiers by Thermotolerant Bacteria for Enhanced Oil Recovery Potential
Authors: Li Yang , Zheng Cheng Gang
Published: February 2012

Three bacterial strains were isolated from oil contaminated soil samples in Yumen oilfield of China and selected due to their capacity of growing under extreme conditions and production of bioemulsifier. The isolates were identified as Brevibacillus sp. XS1, Geobacillus sp. XS2 and Geobacillus sp. XS3 according to 16S rDNA sequence and physiological methods, respectively. The isolates XS1, XS2 and XS3 were thermotolerant with the optimum growth temperature of 50 °C, 60 °C and 55 °C, respectively. All the three isolates were able to produce bioemulsifiers which had little effect on surface tension reduction. The bioemusifiers produced by the three isolates were purified with a production yield of 2.98g/L, 4.24g/L and 3.82 g/L, respectively. The bioemulsifiers were identified as anionic heteropolysaccharides by FTIR analysis and their average molecular weight and polydispersity were investigated by GPC method. The bioemulsifiers produced by Geobacillus sp. XS2 and XS3 exhibited a perfect stability over various temperature (up to 100 °C), pH (range from 2.0 to 12.0) and salinity (up to 30.0% of NaCl concentration) and were considered to be ideal candidates in MEOR process.
Study on Soybean Oligosaccharides Refining Process
Authors: Ma Yong Sheng , Sun Xian Hui , Song Guang Li
Published: February 2012

Soybean concentration proteins were extracted from defatted soybean meals with ethanol agent method. Crude soybean oligosaccharides were gained after recovery the alcohol by concentration with the soybean whey water as row material. Then a series of purification process such as precipitating proteins, desalting with ion exchange and decolorizing carbon were used to obtain soybean oligosaccharides end product. The soybean oligosaccharides refining process technique and parameters were presented in this paper and could be applied to large-scale industrial production. Physical chemical quality index of soybean oligosaccharides after refining was that concentration was 70%, total sugar purity was no less than 85%, protein content was 1.3% (dry base content), ash content was 0.73% (dry base content).
Research on Properties of Rock-Mineral Wool as Thermal Insulation Material for Construction
Authors: Yang Shu Juan , Zhang Li Wei
Published: February 2012

Rock wool and slag wool pertain to the same kind of thermal insulation material, which can be produced in quantity and widely used, by comparison with other inorganic fiber thermal insulation materials, thus it is one of the most important thermal insulation material for the national economic development in our country. After the implementation of Civil Construction Energy Efficiency Management Regulation, it puts forward higher requirements for the energy saving standard of new buildings, thus the application prospect of rock-mineral wool thermal insulation material is promising. This paper mainly presents the source of rock-mineral wool, its main relative merits as well as its application in the construction field, moreover, the application and development potential of rock-mineral wool as the thermal insulation material for building wall construction.
One Lane, Two Lifestyles - Research, Analysis and Reconstruction of Nanluogu Lane
Authors: Cao Ying , Tang Wei , Zhu Peng Fei
Published: February 2012

This paper analyzes driving factors that caused Nanluogu Lane to change based on the research on the spot, discusses reasonability and sustainability of the changes, and proposes some initial reconstruction ideas while taking courtyard as its research object and meeting people's basic needs.
Mechanism of Silica Fume in Suppressing Alkali-Silica Reaction of Concrete：Interfacial Transition Zone Concerns
Authors: Zhan Bing Gen , Wang Quan , Zhou Wan Liang , Sheng Hong Yu
Published: February 2012

The composition and structure of the interfacial transition zone (ITZ) in concrete were investigated to analyze the mechanism of silica fume in suppressing alkali-silica reaction (ASR). Alkali active concrete specimens with varying addition of silica fume were prepared for the experiment. Changes of compositions and pore structures at ITZ and the elements distribution across ITZ were analyzed by SEM and SEM-BSE. The expansion of the corresponding mortar bar was also measured. The results show that the accumulation of element of alkali metal occurred at ITZ in alkali active concrete without silica fume, while the characteristics of the ITZ are basically similar to those in conventional concrete. By addition of silica fume, the ITZ in alkali active concrete are changed and have the following features: disappearance of the accumulation, occurrence of the C-S-H gel with a lower CaO/SiO2 ratio, decrease in crystal phases of Ca(OH)2 and ettringite, and in porosity. These changes account for the mechanism of Silica fume in suppressing ASR.
Melamine Aminated Primary Alcohols Using Potassium Hydroxide/ Activated Carbon Catalysts
Authors: Li Zhen , Ding Yan , Liu Jin
Published: February 2012

Melamine (MA) were aminated with various primary alcohols (PA) such as lauryl alcohol(LA), octyl alcohol (OA) and monomethoxylpoly ethylene glycol (mPEG) under high-temperature and high-pressure conditions using potassium hydroxide / activated carbon (KOH/AC) as catalyst. The possible amination reaction mechanism was proposed based on FTIR, 1H NMR and fluorescence analysis of aminated products. The catalytic activity of KOH was improved remarkably by adding activated carbon as the catalyst support; and the maximum amination yield was about 95 %.
On some Sum-Difference Inequalities and Applications to Boundary Value Problems
Authors: Sun Bao Ju , Bao Ye
Published: February 2012

The aim of the present paper is to establish some new sum-difference inequalities which provide explicit bounds on unknown functions. The inequalities given here can be used as tools in the qualitative theory of certain partial difference equations
Effect of Rice Straw Amount Portion on Physical Properties of Adding Admixtures Hollow Block
Authors: Liu Jun , Zhou Hong Hong , Zhang Bing
Published: February 2012

This study presents the impact of rice straw as additive material on physical properties of hollow block as compressive, flexural strength and water absorption, Softening coefficient. Through testing the hollow block physical properties, the of rice straw additive was studied. When the rice straw amount portion was 0~15%, with rice straw amount portion increased, compressive, flexural strength and water resistance effect of adding one kind of early strength agent and mixing Al2(SO4)3, CaCl2 early strength agent hollow block decreased gradually. When the rice straw amount portion was 10%, adding early strength agent Al2(SO4)3, CaCl2 ，the 28d compressive strength of hollow block was minimum, 3.5MPa; while mixing CaCl2, Al2(SO4)3 early strength agent, the hollow block softening coefficient was 0.76, water absorption rate was 3.9%, meet the requirements of national standard of common concrete hollow block. Through the experiment, the conclusion is mixing early strength agent Al2(SO4)3, CaCl2, Obviously superior to adding one kind of —early strength agent—Al2(SO4)3 or CaCl2 on the physical properties of hollow block.
Performance Analysis on the Raw Material of Nantong Silt Sintered Brick
Authors: Yang Heng Liang , Liu Hong Mei
Published: February 2012

Through the analysis of the chemical and physical properties of the silt in Nantong, which were compared with the clay, the needs of silt raw material for sintered brick were discussed in the paper. The results showed that, the moisture content of the sail in Nantong were lower than that of the clay, the plasticity indexes of silt of Yangtze River in Nantong section concentrated around 12 which was ideal, the chemical constituents of the silt was similar to clay, part of the mineral contents were different. The silt can be used for replacing clay to produce wall materials. It would provide theoretical foundation of materials selection and usage for sludge products companies in Nantong, as well as the reference for the merging recombination and management in the industry.
Experimental Research on Thermal and Mechanical Properties of Modified Rammed Earth Material
Authors: Du Shu Ting , Ma Jin Zhu , Wang Dong
Published: February 2012

Taking the mix proportion of rammed earth dwellings in Anji as the basic standard, the physical properties, thermal properties, mechanical properties of rammed earth in various mix proportion have been tested by means of experiments. The results showed that the proportion of hydrated lime added to the rammed earth have a direct influence on the thermal conductivity, specific heat, compressive strength and shear strength of rammed earth specimens, the thermal and mechanical properties of modified rammed earth material is better when hydrated lime in the proportion of 10%～20%.
Modern Wedding Decoration Design Analysis
Authors: Li Ying , Wang Di , Ma Hui
Published: February 2012

From blood faan civilization. Marriage ceremony, as a traditional conversion, has been drifting away from its original purposes. It becomes a typical consumemily marriage to the modern monogamy, human being has been experiencing several types or forms of marriage and marriage itself become one of the signs for humr behavior and also starting to lead the fashion trend within communities. Modern wedding celebration, especially the environment decoration design, also start to emphasis on the aspect such as significance, mood, aesthetic feeling, class, taste, romance and atmosphere.
Development of Integrated Bionic Honeycomb Plates
Authors: Chen Jin Xiang , Gu Cheng Long , Wan Chun Feng , Xie Juan , Hu Xian Qi , Guo Shi Jie
Published: February 2012

This paper describes the processes of integrated bionic honeycomb plates: A beetle forewing has integrated honeycomb structure, which consists of trabecula-honeycomb and a frame. It is expected to lead to a molding method enabling the creation of an integrated trabecula-honeycomb structure; we have developed an integrated honeycomb plate.
Study of Complex Chemical Activator on Activation Effect of Calcined Coal Gangue
Authors: Song Xu Yan , Han Jing Yun , Gao Zhi Hai
Published: February 2012

Three kinds of complex chemical activators were prepared and then introduced into calcined coal gangue cement. Physical and mechanical properties such as mortar fluidity and mortar strength and shrinkage were tested. The results can show that: excitation effects of multiple complex chemical activators may obvious, where with 8% of J1, 50% of cement replaced with activated coal gangue, compressive strength of the system at ages of 28 days can reach 40.7MPa. Compared with coal gangue cement system without exciting agent, in calcined coal gangue cement system with complex activators early shrinkage increased obviously and later shrinkage may be equivalent to that of pure cement.
Ecological Transformation of Modern Cemetery Design
Authors: Li Bing
Published: February 2012

People increase in demand of the cemetery architecture to result in serious ecological problems, such as the land utilized greatly and environment polluted etc. because of the number of the world population has grown rapidly and an aging population with developing rapidly urbanization. The paper interprets design ideas of the cemetery architecture and all kinds of ecological transformation types at present, thereby realizing sustainable development city.
Genetically Finding Algorithm for a Tensegrity Structure
Authors: Gan Buntara Sthenly , Yamamoto Manabu
Published: February 2012

In the form-finding process of a tensegrity structure, some constraints and assumptions are usually introduced for initial geometry and/or pre-determined member types to ensure the uniqueness of solution. The tensegrity structures are indeterminate problems in most cases. In this study, a novel and versatile numerical form-finding procedure which requires only a minimal knowledge of initial structure configuration is adopted. The procedure needs only the prototype of each member, i.e. either compression or tension, and the connectivity information of members. The connectivity of members and its prototype information are encoded to form an individual population used in genetic algorithm searching problems. As for the fitness evaluation to each population, the existence of self-stressed state in each population is sought. At the end, some numerical examples are given to show the efficiency of the present study and its ability in searching new configurations of tensegrity structures with less design variables.
Zhong Shan Road: Comparing and Studying the Updating of Historical Districts in Different Regions
Authors: Zhao Lin , Wu Peng , Zhang Zhao Hui
Published: February 2012

This paper analyzes the similarities and differences of the Hangzhou Zhong shan Road and the Qingdao Zhong shan Road. They are all the symbol of political power and the commercial center in their respective cities. Due to the development of cities, they are both in the decline stage. Analyzing the success and failure of two historical district by using the theory of The Aesthetic Townscape and finding the problems of Qingdao Zhong shan road by comparing two reconstructions of historic districts.
Construction Technology of Centro-Column Drum Towers of Dong Nationality
Authors: Cai Ling , Deng Yi , Jiang Xing
Published: February 2012

Abstract: The building structure of a Dong nationality’s drum tower is divided into two categories, namely, the tai-liang and chuan-dou hybrid structures, and the chuan-dou structure, which are from the major carpentry structure system of traditional Chinese timber structure architecture. Then, the most common “centro-column” type drum tower among the chuan-dou structure drum towers is defined and classified. The structure technology features of “single-column” and “ringed-column” drum towers, which are also those of a “centro-column” drum tower, are discussed in great detail. Through surveying and mapping, structure conversion models, such as those that “increased columns” and “reduced columns” of “ringed-column” drum towers, are studied mainly. In addition, many specific construction details that improve a drum tower’s external image, like multi-eaves, columns that are inclined inwards, as well as the honeycomb Dougong, are also studied in this paper.
The Regional Creation of the Museum Building
Authors: Ma Xiao
Published: February 2012

Abstract: Through the analysis of the museum examples, from the three angles of the natural environmental conditions (local materials, weather, geographical geography) and environmental conditions , human spirit of place, this article discusses the creation of the regional museum building.
Study on Measures to Improve the Thermal Environment Condition of Rural Dwelling in Winter in Yantai
Authors: Ma Yun Fei , Ding Qiang , Zhao Hai Yong , Li Lin , Liu Shu Guang
Published: February 2012

In this article, the factors which affect the thermal indoor environment of rural dwelling were investigated, and specific measures to improve the thermal environment condition were proposed, which can be applied in practice of designing and upgrading rural dwelling in Yan Tai.
Research on the Strategies of Ecological Safety and Planning
Authors: Sun Ke Zhen
Published: February 2012

This article argues the problems of ecological strategies in the urban planning and the architecture design, the main contents of ecological safety strategies. The paper also discusses the major controllable factor in the ecological safety strategies, and then examines effective planning and design. In addition to these, the article studies the relationship among the urban ecosystem and the building ecosystem, and the method of interdisciplinary working. This paper argues the selection of appropriate sites and environmentally sustainable site development. Some strategies of public space and pedestrian zone, the relationship between public spaces and disaster prevention strongholds are studied. The strategy of earthquake resistant materials and structural strategy, conceptual design of earthquake engineering, and the reliable technology are discussed in the paper.
The Fuzzy Evaluation of Investment Risk Decision-Making of Power Plant Based on the Grey Relation
Authors: Liu Shu Liang , Song Yun Xia
Published: February 2012

Electric power industry is the basic industries. The power plant will face many risk factors in the investment of time. We need to make these risk factors analyzed, so as to explore the validity and feasibility of the power plant's investment. Based on studying the mutual relationship of risk factors in the power plant investment, the paper puts forward the causal relationship of power plant's risk investment decision-making evaluation, and quoting three power plants uses the grey correlation method, the analytic hierarchy process and fuzzy evaluation method to evaluate reasonably and effectively each risk factors of influencing the investment decision.
Immune-PSO for Economic Dispatch with Valve Point Effect
Authors: Song Hyoung Yong , Park Yong Gi , Roh Jae Hyung , Park Jong Bae , Shin Joong Rin
Published: February 2012

This paper presents a simple and efficient approach for solving the nonconvex economic dispatch (ED) problems based on Immune-pso algorithm. ED is one of the most important problems in power system operation and planning. The aim of the ED problem is to determine the optimal combination of power outputs of all generating units so as to meet the required load demand at minimum operating cost while satisfying system equality and inequality constraints. This paper proposes an novel Immune-PSO algorithm to handle the equality and inequality constraints in ED problems. The Immune-PSO can be used as an optimizer providing the global solution while satisfying constraints for the nonconvex ED problems. To verify the feasibility of the proposed method, numerical studies have been performed for test systems.
Applying Research on Testing Compressive Strength of High Performance Concrete with Rebound Method
Authors: Wang Zheng Jun , Zhao Felix
Published: February 2012

In order to grasp timely and accurately quality of high performance concrete, detection of compressive strength of high performance concrete can be non-destructively, rapidly and accurately tested that is very testing index. The paper did some research on compressive strength of high performance concrete applying redound method that it established several estimation models between rebound value and compressive strength. Experiment shows that rebound method can effetely test compressive strength of high performance concrete. Construction quality of Cement concrete structure can timely grasp applying the method.
Research and Design on Information Platform of Deep Development and Utilization for Digital Campus Based on SOA
Authors: Li Xiao , Kai Jin Yu
Published: February 2012

The digital campus project has become an important part of the campus information construction. This paper proposes a realization plan of information platform of deep development and utilization for digital campus based on Web Services and SOA on the analysis of problems of digital campus construction. It introduces the platform based on SOA and the realization of data exchange platform facing Web, and provides the example for service encapsulation. The whole plan with good encapsulation, expansibility and loose coupling solves the problem of utilization and sharing of campus resources.
Establish an Artificial Neural Networks Model to Make Quantitative Analysis about the Capillary Electrophoresis Spectrum
Authors: Li Hong Ping , Li Hong
Published: February 2012

Simulating the overlapping capillary electrophoresis spectrogram under the dissimilar conditions by the computer system , Choosing the overlapping capillary electrophoresis spectrogram simulated under the different conditions , processing the data to compose a neural network training regulations, Applying the artificial neural networks method to make a quantitative analysis about the multi-component in the overlapping capillary electrophoresis spectrogram,Using: Radial direction primary function neural network model and multi-layered perceptron neural network model. The findings indicated that, along with the increasing of the capillary electrophoresis spectrogram noise level, the related components’ ability of the two kinds of the overlapping capillary electrophoresis spectrogram by neural network model quantitative analysis drop down. Along with the increasing of the capillary electrophoresis spectrogram’s total dissociation degree, the multi-layered perceptron neural network model to the related components’ ability of the overlapping capillary electrophoresis spectum by quantitative analysis raise up.
Critical Path Detection for Civil Aircraft Collaborative Supply Network
Authors: Wang Chen , Liu Li Lan , Luan Shao Qun , Yu Tao
Published: February 2012

Civil aircraft is a complex product to manufacture, and the collaborative supply network consist of grades suppliers plays an important part in the progress of development. Due to the interferences from every kind of uncertainties to the network, it’s necessary to find out the critical supply path which decides the completion date for the network going well. This paper first sets the supply network model based on the hierarchical structure of civil aircraft, and then uses Dijkstra and ant colony optimization (ACO) searching for the critical path respectively, in the last the two methods are compared in order to prove performance and superiority.
Dynamic Simulation of the Impact Mechanism of Hydraulic Rock Drill Based on AMESim
Authors: Yin Zhong Jun , Hu Yi Xin
Published: February 2012

Through analysis of the dynamics process of hydraulic rock drill, this paper builds a model of the impact mechanism of hydraulic rock drill with AMESim software, obtains curves of the displacements of the piston and valve core, and gets the pressure of the piston chamber. The dynamic analysis of the results indicates that the model of the impact mechanism of hydraulic rock drill agrees well with the principle of hydraulic rock drill. As a result, this research provides a new theoretical basis and method for the hydraulic rock drill.
Application of a Nonlinear Data-Driven Model to Rapid Design of Disc-Spring Valve Systems
Authors: Czop Piotr , Slawik Damian , Wszołek Grzegorz , Jakubowski Dawid , Skrobol Antoni
Published: February 2012

This paper proposes an analytical tool that supports the design process of a disc spring valve system used in car dampers. The proposed analytical tool obtains a key design characteristic of a valve, which is the flow rate and the corresponding maximum stress level in the stack of plates, as a function of a pressure load. The tool is prepared based on the cases produced by a first-principle model using a finite element approach. The finite element model was calibrated based on experimental results to provide accurate results in the entire range of input parameters.
Testing and Calculation of Solar Light Pipes of USTB Gymnasium
Authors: Wu Yan Peng , Li Jing , Li Hong
Published: February 2012

In this paper, the principle and structure of the solar light pipe systems are introduced, and applications in USTB gymnasium are also included. The internal illuminance of USTB gymnasium is calculated using two different methods, which are utilization factor method and measuring method. In the end, the prospect of the solar light pipe systems in the future is also predicted.
Effect of Physical Properties on Buckling of Spherical-Cone Diaphragm for Positive Expulsion Tank Based on Orthogonal Test by Finite Element Method
Authors: Zhou Suan , Qiang Hong Fu , Wang Xue Ren , Wang Guang
Published: February 2012

Effect of elastic modulus, yield stress and elongation percentage on buckling of spherical-cone diaphragm for positive expulsion tank has been analyzed by FEM based on orthogonal test, which highly decrease test numbers on the premise of validity of results. Numerical results are listed as follows: elastic modulus takes marked effect on buckling of diaphragm while yield stress and elongation percentage hardly affect buckling value of structure. As a result, larger elastic modulus will make for structural stability; different buckling values and modalities of structure are very close, which means that structural behavior is very sensitive to imperfections; local buckling of structure presents in column section, which avails to diaphragm inverting.
Selective Quantum Annealing Using Transverse XY-Type Interaction
Authors: Saika Yohei , Kakimoto Tetsuya , Inoue Jun Ichi
Published: February 2012

We investigated quantum annealing (QA) via the transverse interaction with XY-type anisotropy for a ground state problem for a small composed of 4 S=1/2 quantum spins interacting with anti-ferromagnetic interactions with each other. By solving the Schrodinger equation for the QA system, we found that a preferable solution can be derived by tuning the XY-type anisotropy of the kinetic term among multiple candidates of the QA system. Similar behavior was suggested from the static property obtained by the spin wave theory established in statistical physics. In addition, we clarified that the ground state of the target system can be obtained by the QA starting from an initial state including excited states of the kinetic term, if the interval of time of the QA is set to be large to some extent.