On the breast wall of a vertical breakwater, the measured wave forces have large deviations from the calculated values according to the current standard as a result of overtopping. In order to explore the reason of this deviation, the wave forces on vertical breast wall with overtopping have been measured...

The sewage diffusion is an environmental material for marine environmental protecting. It plays an important role in port engineering now. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and sewage marine disposal project in...

The effect of moderate altitude on human thermal regulation and heat loss may influence human thermal sensation and comfort. This paper aims to clarify this effect and its impact on thermal sensation. Experiments were conducted in a decompression chamber where the air parameters were controllable. Barometric...

The paper aims to research how the main parameters of the rock slopes with joint planes covered: Shear modulus, unit weight and the angles between the joint planes influence the stability and the failure modes of the slopes. The methods are to imitate the jointed rock slopes by the large-scale finite...

Radon and its progeny, lung carcinogens recognized by International Agency for Research on Cancer (IARC) and World Health Organization(WHO), are often obtained to high concentrations in underground space. Based on its decay law, radon and its progeny with bound and unbound state will cause serious damage...

It is common to encounter the excavation unloading of rock mass in the actual practice of construction work for tunnels, underground powerhouse, dams and mining, etc. The damage and fracture of the internal structure as well as the change of seepage for rock due to the excavation and unloading of rock...

The present paper dealt with the concentrations and bioaccumulation of heavy metals (Pb, Zn, Cu, Cd, Cr) in three endemic wild fish in Dianchi Lake, China. The mean concentration in fish organ tissues (head, scale and skin) does not have an obvious ordering. This showed that the metal concentrations...

This paper is an overview of Chinese aquatic products heavy metal pollution and heavy metals pollution in water of China. I have a interpretation of the toxic effects of heavy metals on aquatic organisms, and the harmful effects of heavy metals on the water environment, and induction several of heavy...

Stress redistribution induced by excavation often results in tensile zones in the surrounding rock mass. It is of great theoretical and practical significances to analyse the localizations of deformation and damage and to study the complete stress-strain relation for mesoscopic heterogenous rocks under...

Chloride ion permeation is the most important factor for durability of concrete in marine environment. Therefore, it is the basic on durability design of concrete structures to choose reliable and accurate testing method for chloride ion permeability in concrete. In this paper, according to transport...

To get good outdoor ventilation and create shadow areas, piloti is commonly used in tropical and subtropical climate zones, but there are few studies reveal the comprehensive influence of piloti on wind environment in residential blocks, and furthermore, a coupled simulation method, which offers high...

This dissertation makes a study of joints of crisscross section column composed of core concrete-filled steel tube and steel beam. The study is mainly focused on the Seismic Behavior of joints. Four models are designed by using finite element structural analysis software abaqus, which are joints with...

A village of Yubei, the typical area of north of Henan Province was selected. A field study was conducted in the traditional adobe house and newly built brick house, indoor and outdoor temperature, relative humidity and other indoor thermal environment parameters were obtained in winter. The results...

As a kind of excellent light precast construction materials, aluminum alloy has the advantage of light weight, high accuracy, corrosion resistance, recyclable, etc. This thesis mainly does research on the integration method based on BIM of prefab aluminum architecture, including assembly, performance...

As an essential equipment, the fan is widely used in industrial and civil fields for gas compression and gas delivery. Though the cooling fan can keep us comfortable temperature, it bring the annoying noise. Usually noise reduction will first be conducted to the cooling fan, however, the sound quality...

After analysing the advantages and disadvantages of the existing bridge management system, method about the establishment of optimized bridge maintenance and management system have been put forward. Analysed from three aspects including business process, disease gallery and standardization of data collection,...

To study the mechanical properties of emulsified asphalt cold recycled materials, and recommend reasonable structural parameters. Using orthogonal experiment design method the ABAQUS finite element analysis software to simulate, range method is used to analyze the simulation results. When the emulsified...

The Flocculation of cohesive fine-grained sediment plays an important role in the geophysical process in estuarine and coastal zones through the complete processes of sediment transport, deposition, re-suspension and consolidation. There have been many experiments studying the temporal evolution of the...

Green energy-saving building is the inevitable trend of the sustainable development of the construction industry, green building evaluation standard system of green building development to an important role. In this paper, the Chinese version of the green building evaluation criteria GB/T50378-2014 and...

Denitrifying phosphorus removal process is to complete domestication and enrichment of denitrifying phosphate-accumulating organisms by using anaerobic/anoxic alternate environment instead of the traditional anaerobic/aerobic environment. Then, nitrogen and phosphorus can be removed simultaneously at...

A physical modeling was established to analyze the mechanism of initiation, continuation, and progression to form a breach for internal erosion and piping. The method accounts for the nature of the soils including sandy gravels, fine-grained sands and silty clay in the dam core and the foundation. Guidance...

Based on the analysis of deformation characteristics of arch dams of LiJiaxia hydropower station, Dong Jian hydropower station and Feng Le reservoir, the deformation laws are acquired, and the further understandings of deformation safety monitoring index under different conditions are provided to monitor...

The according to the results of the early theory research of concrete expanded-plates pile and the simulation analysis, discusses the influence of moisture content of fine silty sand for failure behavior and compressive bearing capacity, and put forward the tentative plan which further researches the...

Due to the moisture content of fine-silty sand soil has a significant influence for the failure behavior of the soil surrounding the CEP(concrete expanded-plates) pile. In view of the domestic research situation of the CEP pile in current time,this paper preliminarily determines the scheme of half circle-section...

Rice husk ash (RHA), produced by burning rice husk under controlled conditions, due to its high activity and high specific surface area, can be applied to concrete by replacing cement, such as in normal concrete and high-strength / high-performance concrete. In addition, its application in ultra-high...

The structure of composite beam A and composite beam B is formed by the combination of corrugated steel web plate and lining concrete. A finite element model was established to study the distribution between steel plate and lining concrete in elastic stage, and to analyze the failure process of interface...

An approximate analytical solution of Richards' equation was derived by the differential transform method (DTM) in this paper. The basic idea is that the Richards' equation can be converted to an ordinary differential equation (ODE) by introducing the Boltzmann variable. Then DTM was applied to solve...

In the background of rapid urbanization in China, it is an important task to improve the level of social integration and solve the problem of discrete distribution of floating family members. A Structural Equation Model (SEM) of family relocation decision related to rural factors, urban factors and social...

The shear strength of trapezoidal corrugated steel webs is an important parameter for the design of girder bridges with trapezoidal corrugated steel webs. Five I-shaped steel beams with different longitudinal stiffeners were tested to preliminarily investigate the shear behavior of trapezoidal corrugated...

A numerical modeling were built by ABAQUS to do push-over analysis, and the results were consistent with test results in load-displacement curve and frame stress nephogram. Furthermore, the influence of the changing key parameters were analyzed by numerical simulation to understand the axial compression...

For assemble-type composited wall, 4 pieces of wall which are 1/2 scale models were made. By pseudo-static tests under low cyclic loading, the aseismic behavior indexes were compared and analyzed, including failure characteristics, bearing capacity, stiffness, deformation, ductility, energy dissipation...

Simple supported-to-continuous girder bridges are commonly and widely used in bridge engineering in China. For this type of bridges, normally, the longitude connections are casted in-site by concrete. The quality of the casted concrete is difficult to control. After a large number of field surveys, damages...

Nowadays, in the Chinese high-way constructions, simple supported-to-continuous girder bridges are commonly used. One issue that involved in the construction of this type of bridges is the longitude connections that are casted in-site. The quality of the casted concrete is difficult to control. After...

The reasonable design of shear connectors is the key to ensure the integral forced performance of steel-concrete composite beam. This paper presents an experimental research on the capacity of angle shear connectors. Six push-out specimens with different height and thickness of angles were included in...

This paper presents a new reason of the mechanical damage principle of pulse bag type dust collector bag. Three dimensional main structure of dust collector is established. And finite element numerical simulation is given. Also according to the actual situation of customer feedback, the flow field distribution...

In order to assess the damage of reinforced concrete slabs under the effect of explosion shock wave, finite element models were built with LS-DYNA. Different models under four working conditions in TNT equivalence, reinforcement and slab thickness were considered. Equivalent plastic strain was brought...

Based on a long-span rigid frame-continuous combination bridge with corrugated steel webs, the seismic behavior of finite element model built by Midas Civil is analyzed through Pushover method, and the result is compared with the result from nonlinear time-procedure analysis. The outcome indicates that...

This paper summarizes basic principles and assumptions of pushover analysis, and then introduces two important factors which may make the results of analysis different: lateral load patterns and calculation of maximum displacement. Subsequently, the paper selects two kinds of lateral load pattern to...

In order to fully understand the shear lag effect variation of concrete composite girder with steel truss webs, the 3D finite element model is established with general finite element software ANSYS, considering three typical load models of mid-span concentrated load, two points symmetrical load and uniform...

The wood-concrete composite beams consist of the wooden beams and concrete slabs by using shear connectors together into a whole load.With the development of society and economy as well as the accumulation of experience in scientific research,people have a further understanding and mastering about the...

Base on the underground central business district project in the south economic development zone of Changchun, this research studied seismic performance of a large-scale complex underground commercial space structure under the severe earthquake action. A three-dimensional dynamic model was established...

Seven treatments were implemented in a degraded steppe in north China to evaluate the effects of gap creation on two native species regeneration. Shoot gaps and root gaps (10cm, 20cm and 40cm in diameters), no gaps (control). Shoot gaps were formed by removing vegetation without restricting the re-growth...

The under-crossing tunnel of east external ring of Kunming is one of the most important projects of the Kunming south railway station hub construction. Two layers of silt soil are found in tunnel mileage K2+100-K2+200 and one of them is just under the tunnel floor. Since the project is on high seismic...

The ecological degradation have been aggravated under the background of global climate change and increasing social-economic development. It is important to ascertain the process and mechanism of ecological degradation, which is considered prerequisite of choosing effective restoration measures. This...

Visible light induced photocatalytic oxidation degradation of Acid Orange II dye was discussed. Bi2O3 was chosen as the photocatalyst. SEM showed that Bi2O3 powders were of about 7 to 8 um in size. It was porous and AOII could be effectively adsorbed on the surface of Bi2O3. And then the absorbed AOII...

It is demonstrated an emerging measuring method of the Video Displacement Non-contact Measuring System. Through cameras and camcorders in mobile phones, the algorithm based on histogram characteristic of images is built and optimized in computing methods, obtaining displacement and deflection of the...

Based on the temperature rise caused by adiabatic process and the viscosity of the metal under the impact of steel, the Johnson-Cook constitutive relation of structural steel in civil engineering was modified. Applying the Split-Hopkinson Pressure Bar (SHPB) testing technique, the impact experiment under...

This article is a design study on the ecological reconstruction of Guangzhou South logistics complex Building, on the basis of keeping the original architectural structure. Through the simulation of computer software and application of effective architectural approaches, this article puts forward a targeted...

In order to study the basic mechanical properties of chopped basalt fiber reinforced concrete (BFRC) and the impact of basalt fiber reinforced concrete by fiber content Experiments are conducted to examine the splitting tensile strength of this new composite construction material at different fiber volume...

Owing to many limitations of the traditional soil-pile model test scheme and large pile-soil solid test plan, the failure mechanism research of concrete expanded-plates pile is limited, so this paper will introduce a new test scheme. The test scheme can be a true simulation of the work together with...

In this paper, adopting the small scale model experimental method, made the test pile with half and whole cross-section, and through the homemade soil device to extract the undisturbed soil to carry out the load experiment. Observe the failure process of the soil around the pile body, at the same time,...

Study on chloride ion adsorption and combined with the characteristics of sea sand concrete,through the determination of free chlorine ion content in sea sand concrete. The sea sand concrete microstructure and Friedel salt were characterized by using X-ray diffraction (XRD) , scanning electron microscopy...

On the background of Lanzhou-Chongqing railway Guangyuan Jialing river (82+172+82) m long-span continuous beam-arch combination bridge, the beam-arch joint stress distribution rules of a railway continuous beam-arch bridge has been studied, which the main span is over 150m, the construction and services...

It is urgent to find a reliable technique to settle the problem along with growing of petroleum hydrocarbon pollution in the sea. Compared to other traditional methods, biological treatment has a significant advantage. It is the key factor that gets bacteria with high efficiency of hydrocarbon degradation....

Based on the numerical simulation method, a research on the optimal design of cutting and excavation control was conducted for Zhonglou Mountain Landslide in North Shaanxi, China. Three excavation slope angles, namely, 53ø, 54ø and 55ø, were chosen for numerical simulation calculation and comparative...

In recent years, the construction and development of Country Parks in China has been rapidly and widely which gradually aroused people's concerns. But there was lack of Country Park's Resources Evaluation System(which would be called the CPRES in this paper) in China to provide reference in the process...

The environment deformation caused by the excavation of a foundation pit is numerical analyzed using the hardening soil model. The simulation results show that the deformations of supporting structures of this foundation pit and the surrounding environment can meet the requirements of deformation control....

Polyurethane foam concrete is prepared by solventless two-component polyurethane materials, cement, KC-15 composite blowing agents and calcium stearate foam stabilizer. It discussed the synthesis mechanism and studied the preparation process for the preparation of polyurethane foam concrete in the paper....

Evaluation of integrated security situation for highway subgrade comprehensively and accurately has been able to provide the basis for repair of damaged subgrade in reconstruction stage after earthquake. Five indexes have been selected to figure characteristics of subgrade: damage condition, structural...

Electric power market transaction is one of the important measures for the reform of the electric power system in China. In this paper, the characteristics of the optimal reservoir scheduling in the electric power market transaction model are analyzed, and the optimal operation model of the reservoir...

Transmission tower is constructed quickly in China and the foundation of tower should be studied for economical and security reasons. A simplified analytical is presented for the mechanism of the new micropiles foundation, which have many advantages in design and construction stage, such as accurate...

In order to realize the fast excavation in hard rock roadway with large footage, according to experience and parallel hole cut blasting theory, a diamond central interval charging parallel hole cut blasting experiment scheme was designed, and a series of test was finished in Beishan test site. But through...

The objective of this study was to investigate the successful start-up of poor nutrition simulated wastewater with sodium acetate carbon source in an EGSB reactor, and EGSB reactor inoculated the flocculent sludge from the anoxic zone in the municipal sewage treatment plant. The results demonstrated...

Three- dimensional (3D) saddle shape model is built by using SolidWorks software in this paper. Then import the saddle model into a robot off- line programming system. Finally, the simulation study of the SIASUN robot off- line programming system can be used after collecting the saddle model and saving...

Human's body shape classification is the basis apparel digital processing and manufacturing. Human neck's morphology is a critical factor that influences the fitness and comfort of apparel's collar. In this paper, 300 young men, aged from 20 to 25, are measured by means of the 3D Interactive Body Scanning...

In this paper cross-section shape of human root neck is obtained through 3D anthropometric measurement, and human root neck circumference and the ratio of cervical transverse length and sagittal length are calculated. In addition, through geometric drawing calculation formula as well as the statistical...

This paper proposed a fault fast detection criterion based on the change of voltage on the resonant device after a fault occurs, this proposition is based on a series analysis of the resonance voltage waveform on the acceptor resonance fault current limiter (FCL) in the OMIB system. Meanwhile, possible...

SMA490BW steel is the main materials of making bogie, which is the key compoment of the high-speed train, and the quality of welding joint directly affects the safety of railway vehicles. In this paper SMA490BW steel jonits were welded by single wire welding and double wire welding methods. The temperature...

Microstructures of SMA490BW weathering steel welded joints are investigated. Tensile tests, impact tests and bending tests of joints were carried out to investigate the mechanical properties from the test temperature of 0øC to -40øC. And the fatigue properties of jonits at -40ø C and 0øC are discussed...

Iron and steel industry, as the important foundation of the national economy, has been developed rapidly in recent years. However, with constant expansion of steel production, industrial emissions and pollution problem is increasingly outstanding, the previous extensive development mode cannot adapt...

A platinum resistance bridge thermometer is introduced. It implements linear temperature measurement in -200~850 degrees with a bridge circuit. It consists of bridge circuit, multi-channel switches, amplifier, AD574, display, COM port, precision power supply, 89C51 etc. After the analysis of bridge circuit...

With the rapid development of aerospace, optics, photonics and other fields, the optical glass is more and more widely used. In ultrasonic vibration milling process, the milling force can directly affect the stability of machining process, the processing quality of components and the pass rate of products....

Hexagonal Mn2O3 nanoplates were synthesized by a hydrothermal method and then a annealing process. The Hexagonal Mn2O3 nanoplates prepared at hydrothermal temperature 200 oC exhibited the best electrochemical properties with a high reversible capability and cycling stability, It still retains a high...

LiMnBO3/C composite material was prepared by a rheological phase reaction method and successive annealing procedure. In the synthesis procedure, citric acid was selected as carbon source. The electrochemical tests showed that the LiMnBO3/C could greatly improve the discharge capacity, rate capability...

Under the impact of the new generation of information and communication technology, China is speeding up things to other areas of urban management, new energy, healthcare, manufacturing penetration. Especially in recent years, developed countries and regions have introduced policies of things related...

Established dissimilar metal iron and nickel resistance spot welding nugget formation temperature field mathematical model for the discretization of the finite difference method, using TFRSW numerical analysis software, data processing module based on MATLAB language, study the dissimilar metal welding...

Installation of displacement types of columns such as driven pile, sand compaction pile,lime compaction pile,and deep mixing column causes stress changes in the surrounding soil. The properties will change in surrounding soil. Strength of the surrounding soil will decrease,recover,and increase after...

In the launching processes of Rod-less Cylinder ejection device, the pressure is much higher than the air critical pressure, and the temperature can deviate significantly from the Boyle temperature. In such situations, the thermo-physical properties and pneumatic performance can't be described accurately...

An intelligent electrical circuit for controlling the operation of quartz metal halide discharge (QMH) lamps is proposed. The lamp can be operated steadily at high-frequency by integrating the microcontroller ATmega128. With the application of pattern recognition, the control system enables the lamp...

The design of front-end signals acquisition circuit is made for extraction of EEG signals, thus making it possible to amplify, filter, and remove the interference of source signal collected from the brain electrode. After the signal go in turn through such links as pre-amplification, high-pass filtration,...

Compared with the steel fiber, the compressive and flexural strength of cement mortar were studied and discussed in this paper. The result showed that compared with the steel fiber, amorphous alloy fiber improved mechanical properties of cement mortar obviously. Compared with the reference specimens,...

In this paper, long-distance natural gas pipeline system and its SCADA system are generally introduced first. Accordingly, SCADA system control for long-distance gas pipeline is discussed in normal operation. Based on this, control model is established, and needs of auto-switching SCADA's control are...

In order to give useful information for the appropriate packaging conditions, respiration characteristics of fresh cut purple cabbage was clarified. The respiratory rate were determined by using closed system method. The changes of headspace gas concentrations in tank was determined, and the respiration...

The SHCCT diagram is a curve that can reflect the start point, the end of the phase transformation, which is significant in optimizing welding parameters and making a reasonable process parameters. In this paper, the weathering steel S355J2W at different cooling rate was employed to simulated the heating...

In this paper, internal heat transfer process of vanadium titano-magnetite concentrate carbon-containing pellets was analyzed in direct reduction at different temperatures. The thermal conductivity of vanadium-titanium magnetite carbon-containing pellets at different temperatures were determined under...

This thesis put forward a physical force-driven packing optimization design method for solving the Strip Packing Problems (SPP). This thesis researched on the following aspects: The mathematical optimization model of SPP is proposed firstly. Based on the convex hull plus rubber band compact layout method,...

Colored asphalt cement was prepared by mixing aromatic oil with petroleum resin and polymer additives. Then the colored asphalt cement was modified by oxidized polyethylene (OPE) wax, resulting in warm mix colored asphalt cement. The content effect and mechanism of OPE wax on the performance of the warm...

Wedged link is widely applied to circular cabin section linking structure for the advantages such as structure reliability, convenient installation and removal as well as high space utilization ratio. Generally, wedge block strength is computed using engineering method. However, the transfer load of...

One-step dip-coating process was employed to fabricate transparent superhydrophobic coating on the glass surface by using the mixture of silica nanopartilces and hexadecyltrimethoxysilane in anhydrous ethanol using triethylamine as hydrolysis catalyst. The water contact angle and optical transmittance...

This paper expounds the control system structure, working principle and characteristics of high voltage power supply of electrostatic precipitator, introducing the main technical parameters and performance of high voltage power supply control system of the new type electrostatic precipitator, and finally...

The riding comfort is the essential pursuit for car option and the car suspension system contributes the most effect to car riding comfort. Hence, research of suspension system has become one of the most imortant issues for vehicle riding comfort. In the paper, The study aims to design develop a new...

The Fe doped TiO2 (FET) gels were synthesized by different ferric salts and analyzed by thermal gravimetric analyzer and X-ray diffraction. The TG curves show that the valence states of Fe had a great influence on the preparation of FET gels, Fe3+ was easy to replace titanium atoms to form lattice and...

PP/MMWPE/EPDM monofilament was prepared by blending modify and its physical performance and the cost was studied. The results showed that the breaking strength of PP/MMWPE/EPDM monofilament was 16.8% higher than that of PE monofilament while its knot strength loss rate is 3.8% higher than that of PE...

The tensile mechanical properties of the HSPE fiber twisted rope were studies. The result shows twist significantly impacts the breaking strength and related properties of HSPE fibers. When the 3-strand PA rope in a diameter 14mm, 3-strand PE monofilament rope in a diameter of 20mm, and 3-strand PP-PE...

The effect of the deflector angular variation for single slotted cambered otter board on hydrodynamic performances was investigated by model wind tunnel test. Three otter board models with different deflector angle were designed for testing. The model test conducted in wind tunnel with the flow velocity...

A brake energy regenerative strategy was introduced in this paper after the analysis of brake torque distribution and maximum battery charge power within the ECE regulation scope. Studying on efficiency of regenerating energy under different driving conditions,the models and simulations of the energy...

Since transparent conducting oxides can be as a buttom layer of complex film electrodes, electrodeposition technique may produce ZnO films depending on variety conditions and modified surface layers of substrates in electrochemical procedures. Here we invested the structure and morphologies of ZnO films...

Pro-Pro-[Arg11]hPTH(1-34)-Pro-Pro-Asp (hPTH') is more effective than hPTH(1-34) in the treatment of osteoporosis in our previous studies. The hypothesis that the active form of hPTH' was introduced by the excision with dipeptidyl peptidase IV (DPPIV) in vivo was validated in the present study. Following...

Systematic research on monomolecular layer of phthalocyanine (Pc) and porphyrin (Por) derivatives bas been finished. In this paper an attention is focused upon the orientation and characterization of molecular macrocycle planes of some Pc and Por derivatives in monomolecular layer by means of the the...

Iron and steel industry, as the important foundation of the national economy, has been developed rapidly in recent years. However, with constant expansion of steel production, industrial emissions and pollution problem is increasingly outstanding, the previous extensive development mode cannot adapt...