The paper simulated the mechanical process of transportation of ultra-critical using glass reinforced plastic pipe (GRP pipe). The gas expansion model of micro-cavity in GRP pipe was established based on the experimental results. By analyzing the physical process of gas expansion on the micro-pore, the...

The durability behavior of prepainted steel sheets for construction produced by different companies was studied by neutral salt spray analysis and accelerated UV ageing test with the aid of glow discharge optical emission spectrometry (GDS). The salt spray results suggested that both prepainted steel...

Two specimen of concrete beam with recycled brick aggregate and a common reinforced concrete beam as contrast specimen were designed. The beams were simply supported, the width and height of the rectangle section of the beams was 150mm and 300mm, the span were 3m, reinforcement and loading method were...

We presented a new two-dimensional crack criterion for DDA (Discontinuous Deformation Analysis) method to simulate the failure of pre-crack Brazilian disc marble specimens under dynamic loading. The Split Hopkinson Pressure Bar (SHPB) equipment was used to impact the specimen and check the applicability...

According to the results of pullout-test for adhesive steel bar in concrete, a bond-slip relationship on adhesive interface is established. This relationship reflects effect of some parameters, such as effective embedment length, drill diameter, characters of anchor adhesive, etc., on bonding strength...

In recent years, the most commonly used method for the tap water disinfection is chlorination. However, a lot of disinfection byproducts (DBPs) with the nature of carcinogenicity, teratogenicity, mutagenicity can be produced as by-products in the process of chlorination. Therefore, DBPs would do great...

The structure of C-bridge is prestressed concrete partially cable-stayed bridge with corrugated steel webs with a main span of 188m, and the span arrangement is 58m+118m+188m+108m, and the form of box-girder section is one-box four-rooms with inclined webs. In this paper, the finite element method is...

The paper is devoted to the behavior of steel-concrete beam with Hybrid Full Web and Truss system subjected to four-point loading mode. Steel-concrete composite beam with HFWT system was investigated both experimental and computational using finite element technic. In the finite element analysis, test...

The laboratory compaction method produces a huge effect on the design of mix proportion and performance testing of asphalt mixes. For the result of a performance test to yield reliable physical properties, it is necessary to ensure that laboratory specimens are fabricated in a manner that adequately...

Earlier research has demonstrated that rigid base, when properly applied, can enhance the cracking and rutting resistance of asphalt concrete layers in pavements. This study focussed on developing the temperature stress distribution of roller compacted concrete(RCC) base by conducting appropriate experiments...

This paper focused on change characteristics of deformation and stability of certain a landslide under conditions of earthquake. The mathematical model of dynamic analysis of earthquake was utilized for deformation and stability of the landslide with weak permeable media. This paper studied change characteristics...

6 finite element models of ANSYS were constructed. A material nonlinear finite element analysis by the finite element calculation software ANSYS on reinforced concrete beams strengthened by SGFRP under the gravity symmetric concentrated loads was performed. The load-displacement curves of the models...

Based on the previous experimental and numerical analysis studies, the design menthod for prestressed concrete frame joints with spread-ended beams are proposed according to home and abroad related design codes and references, and the designed method is verified by test data. The results show that the...

Through and half-through arch bridges are modern bridge types due to the development of steel as a building material, in which up to now the dead-load of the deck system and the live load are transferred to the arch rib by steel suspenders. However such suspenders are due to complex mechanical loading...

This paper carried out an experimental investigation on the effects of spatial distribution of bond degradation on the load-carrying mechanism and failure mode of RC beams. Bond degradation was simulated using artificial method and shear performance was investigated through three-point loading tests....

In this paper, a 2D numerical simulation model was developed in FLUENT base on a new type thermal energy storage equipment. The results showed that the form of vertical pipes with nozzle holes can create fluid channels and a large number of vortices quickly, which improve the heat charging power, present...

Leaching test on the oxidized zinc ore from Kashi, Xinjiang Autonomous Region is studied in the (NH4)2SO4-NH3-H2O system; Systematic studies are made to show the effects of various factors on the leaching rate of zinc. The optimum conditions for leaching is finally confirmed, i.e., the grinding fineness...

A series of catalysts were studied for removal efficiency of hydrogen cyanide (HCN) under micro-oxygen conditions. It was found that activated carbon modified by Cu, Ce, and cobalt sulfonated phthalocyanine (CoSPc) denoted as AC–Cu–CoSPc–Ce showed significantly enhanced catalysis ability. The influences...

A set of simulation equipment is set up after the conditions of removing SO2 and heavy metal Hg (Hg0 and Hg2+) has been investigated, the results of the removal technology method of absorption Hg0, Hg2+ in smelting gases containing SO2 with (NH4)2S is tested, and their composition of reaction products...

The modified γ-Al2O3 adsorbents were prepared by impregnation method has been studied for arsine (AsH3) removal efficiency. The results show that γ-Al2O3 modified with Cu(CH3COO)2 (denoted as Cu/Al2O3) is found to have markedly enhanced adsorption purification ability. In the adsorption purification...

Recently, researches and applications of denitrifying and phosphorus accumulating organisms (DPAOs) in treating eutrophic water are becoming more and more extensive. Treatment technologies with DPAOs are SBR、A2O、AO、A/O/A etc. and they all have their own pros and cons, respectively. According to...

With the development of modern industry and communications industry, a variety of metal wires are used more and more. At the same time, the number of cables required waste recycling is also increasing and the environment pollution has become more serious. Currently, cable for waste recycling technology...

This paper reviews the status and progress of biological denitrification and phosphorus removal. The mechanism of denitrification and phosphorus removal is analyzed briefly, and the characteristic of some denitrification and phosphorus removal process is also compared. The new process and new technology...

The hydrometallurgical process of leaching molybdenum and nickel from black shale without reagent was investigated. The extraction of Mo and Ni from molybdenum-nickel ore by oxygen pressure leaching, which exploit the characteristic of molybdenum-nickel minerals contain high concentration amorphous sulfide...

Molten steel temperature is a key parameter related to LF refining, and it has an important influence on steel quality and casting. Aimed at a steel ladle with capacity of 300 tons, a heat transfer model was developed. Ladle wall and bottom lining temperature distribution curve was obtained. The factors...

Molten steel temperature in ladle after converter tapping has a strong effect on yield rate of alloy, dosage of deoxidizing agent and production efficiency. A mathematical model taking ladle thermal state into account was established for temperature prediction of molten steel during tapping and it was...

By making use of the experimental system of explosive load digital laser dynamic caustics, it is to carry out dynamic crack analysis for the tip crack initiation and propagation process of precracks near the blast hole and study the directional crack controlled blastting mechanism, thus obtaining changes...

The paper focuses on separating the coarse slime for the particle size ranging from 0.3 mm to 2 mm in the teetered bed separator. The product yield and ash are researched as well as the partition ratio. The result shows that R-Z model and Das model give prediction with worse precision，Asif model and...

A facile approach was introduced for the synthesis of hybrid-microspheres (MSs) of melamine formaldehyde resin (MF) and aluminum hydroxide (Al). Wherein, the uniform MF MSs were firstly prepared under acid conditions, and then hybridized with aluminum hydroxide under urea solution presence and decomposition...

With sulfur dioxide and other environmental pollution is becoming more and more serious. It is of great significance to explore an efficient, fast and clean way to remove these environmental pollutants. In this paper, the microwave plasma technology is applied in the desulfurization process. The effect...

A series of organic quaternary ammonium bromide with varying carbon chain length in alkyl group were investigated as the catalyst for CO2/PO cycloaddition. When the length of the single-chain in alkyl tributyl ammonium bromide increased from 2 to 16 progressively, the catalytic activity first increased...

Metal-organic frameworks (MIL-100)/graphene oxide composites (MOFs/GO) with different graphene oxide (GO) contents were prepared under hydrothermal conditions. The resultant products were then characterized by powder X-ray diffraction, infrared spectra, thermogravimetric analysis and nitrogen adsorption...

Flame-retardant epoxy resin composites were prepared via in situ polymerization of diglycidyl ether of bisphenol A epoxy monomer and 4,4'-diaminodiphenyl methane, using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as additives. The thermal and flame-retardant properties of cured samples were investigated...

Al2O3 ceramic has the advantages of high mechanical strength, high temperature resistance, oxidation resistance, high hardness, chemical resistance and so on, due to its brittleness,that has restricted the more wilder application. This paper introduces the research state of Al2O3 ceramic toughening,...

Based on liquid fusion and atomic interdiffusion of TiB2-based ceramic and 42CrMo steel, the ceramic-metal laminated composites with interfacial 3D-network span-scale graded microstructures were achieved by combustion synthesis in high gravity field. The presence of respective atomic concentration gradient...

By inducing thermal explosion in high-gravity field to prepare the laminated composite of TiB2-based ceramic and Ti-6Al-4V alloy, spatial span-scale continuously-graded microstructure was achieved in interfacial region between the ceramic and Ti alloy, and the formation of the interfacial microstructure...

Polyphenols, flavonoids, triterpenoid and VitaminC from Clinacanthus nutans were extracted by microwave-assisted extraction (MAE) technology. The optimal extracting conditions were established as distilled water as solvent, solid-liquid ratio 1:45 (g/ml), irradiation power 160W, and every extraction...

Hydrogenated amorphous silicon carbide thin films (a-SiC: H) were deposited by decomposition of SiH4 and CH4 gas mixtures at 200 0C. Chemical bonding configuration measurements by Fourier transform infrared absorption spectroscopy show that there are SiHn (n=1,2,3), C-SiH, non-hydrogen Si-C, Si-CH3,...

Iron–doped lanthanum stannate (Fe–La2Sn2O7, simplified as Fe–La) was prepared firstly and used as a synergistic agent of the intumescent flame retardant (IFR, the mixture of ammonium polyphosphate (APP) and pentaerythritol (PER) with mass ratio of 2:1) for polyphosphate (PP). The limiting oxygen...

Split appeared after initial interaction between honeycomb core and projectile debris when projectile hypervelocity impact on honeycomb sandwich panel. In order to investigate the split characteristics of projectile debris, a 3D simulation model of projectile hypervelocity impact on honeycomb sandwich...

In this study, we utilize EDC/NHS as catalyst to graft Single carboxyl porphyrin molecules onto acidized chitosan for synthesis of porphyrin-functionalized chitosan composite(PFCC) and testified its structure by FT/IR. In liquid phase, we identified the formation mechanism of molecule microsphere with...

Using laser scanning system for preparation of abutment body of data acquisition and accuracy analysis for the reconstruction of 3D laser scanner abutment preparations and by the method of reverse engineering established the 3D digital model of the simulated abutment, using professional software to simulation...

Alloy composition of thin strip Solidification Microstructure Effects of larger, Al-8.5Fe-1.4V-1.7Si and Al-11.7Fe-1.15V-2.4Si alloy. At 20 m / s and wheel line speed and 0.7 x 105Pa jet pressure difference process thin slices of tissue, can see in addition to changes in grain size and a-Al grain accounts...

Hot pressing method although can effectively improve the density of the rapid hardening slice powder, but due to the rapid hardening slice heat ultrafine microstructure of aluminum alloy powder body approximately in to static pressure state, under the limited high loading stress condition, high temperature...

This paper researches the influence of laser rapid prototyping process for titanium metal crown. molding quality using the microstructure. The results show that laser rapid prototyping technology can form a uniform, defect-free titanium base crown. And than the thickness of choice is crucial, relatively...

In this study, a certain amount of rare earth metal Cerium and low melting point Arsenic were closed in the barrel-shaped cylinder machined by H08 steel, heated to 1223K,1273K and 1323K respectively for 50h, and the interaction among the cerium, arsenic and iron was studied by X-ray diffraction, optical...

An antisulphuric coating manufactured by U.S. michelman was coated on the case board to prepare antisulphuric packaging paperboard. The silver strip samples were wrapped in antisulphuric packaging paperboard under laboratory condition in a simulated extreme sulfur-containing atmosphere, then the corrosion...

This paper will discuss strengthening mechanism of ultrasonic hydroxyapatite nm from each ultrasound parameters, such as: research ultrasonic power, intensity, frequency, etc., the findings concluded that ultrasound is through a liquid medium to a solution of molecules, ions action. When the ultrasound...

In this study, seaweed kelp as the raw material, the use of ultrasound-assisted method of extraction process of total flavonoids kelp discussed. Discussion on the ethanol concentration, extraction temperature, time and other factors affecting the extraction of total flavonoids ultrasound, by orthogonal...

In order to study the reflection crack resistance of asphalt mixture, using Overlay tester, crack resistance property of five asphalt mixture types were analyzed based on the repeated loading mode. The paper analysis the influence of mixture types、temperature and volume index (void ratio) on the anti-cracking...

Objective. To evaluate effectiveness and safety of Fufang Kushen Injection combined with transcatheter arterial chemoembolization (TACE) for primary liver cancer (PLC). Search Strategy. Electronic databases were searched until 2 July, 2015. Inclusion Criteria. We included randomized clinical trials about...

The uniqueness of tie-dyeing technique lies in dealing with the fabric by the methods of sewing, binding, wrapping, knotting and sandwiching, etc, through “tying” and “dyeing” to produce the visual effects of color dyeing, the rich changeable color gradient and the folding printing and dyeing...

A series of nonlinear finite element analysis for unstiffened and stiffened plates with initial defect is carried out by ANSYS software. The ultimate strength of steel panels and stiffened plates with longitudinal through-thickness cracks under longitudinal compression is studied in this paper. The influence...

In order to improve the safety of the hook, the hook was finite element analyzed. Firstly, the geometric model and finite element model were created. Then the material parameters and boundary conditions were applied to the finite element model, the load was studied specially. Finally, the static strength...

Molecular dynamics simulations have been performed for the study of different cationic collectors adsorption on the mica (001) surface in the vacuum. The relationship between structure of ammonium ions and the flotation performance of mica has been discussed. The S order parameter is further calculated...

For the precise manipulation in lab-on-a-chip, the slug flow of two-phase or multi-phase forming in the micro-channel has been highly concerned to develop the new digital jetting technology. This paper focused on the water-oil two-phase slug flow to realize the digital jetting by micro water droplets....

In microfluidic chips, the micro droplet jetting is a key technology to control the droplet volume by micro-channel. The micro droplet in micro-channel is highly concerned on the two-phase or multi-phase slug flow, in which the two-phase streams can form two kinds of micro droplets steadily. This paper...

Based on vehicle collision test, a finite element dummy model (FEM dummy) was built, at the same time the parameter optimization method was proposed in the paper. To improve consistency between the dummy simulation results and results of vehicle collision test, it's necessary to scientifically adjust...

Based on full-size vehicle collision test, a new finite element dummy model (FEM dummy) was built in this paper, at the same time the corresponding dummy's material parameter curve optimization method was proposed. For the result of dummy simulation being in keep with that of full scale vehicle collision...

Cutting-direction fracture is one of the most common and undesirable phenomenon occurring in machining operations that reduces assembly and machined part quality, and it should be avoided or at least reduced.. A finite element model has been established to investigate the mechanism of cutting direction...

The nano silica was used as the dispersed phase particle and the polyethylene glycol was used as the dispersed phase medium. The shear thickeing fluid(Thickening Fluid Shear, STF) which the SiO2 solid content of STF was 9%, 12%, 15%, 17% and 20%. The different concentration different molecular weight...

Point supported glass curtain wall to show the permeability and integration structures inside and outside space, fully embodies the glass support system and the physical space of the artistic charm, but in appearance, but also brought great security risk. By analyzing the way the two-point supported...

In this paper, the software of DeST-h was used to simulate the energy consumption of a residential building in Anyang,henan province, based on the comparison of external-wall with different insulation thickness.By analyzing the investment costs of exterior insulation material and the operation costs...

An off-lattice Monte Carlo model has been developed to simulate growth of dust cakes from ultrafine particles in a model filter composed of an array of identical parallel fibers placed transverse to the flow. Unlike previous simulations on the dust cakes, this study considerd the effect of the flow feature...

A three-dimensional stochastic simulation was developed to simulate growing process of particles deposit on a single fiber in Kuwarbara cell due to the collection mechanisms from inertial impaction and interception. The distributions of size of particle dendrites were calculated to quantificationally...