Density functional theory (B3LYP) calculations has been carried out to explore the potential energy surface (PES) associated with the decarbonylation of acetaldehyde by Ni+2. The mechanism leading to the loss of CH4 and CO is analyzed in terms of the topology of PES. The structures and energies of the...

The corrosion behavior of rebar HRB335 in 0.5 wt.%, 1.5 wt.% and 3.5 wt.% NaCl solutions was investigated by corrosion rate calculation and corrosion morphology observation. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HRB335 in each NaCl...

Al coating is formed on AZ31 magnesium alloy by Cold spraying. plane and cross-sectional microstructure of cold spraying Al coating are investigated. The results show that Al particles are deformed significantly compared with original particles and Al coating is well bonded with the substrate. The microhardness...

Diamond coated tools of cemented carbide substrate with high Co content are extremely useful for machining difficult-to-cut materials. However, it is very difficult to deposit a well-adherent diamond coating on WC-Co with high Co content because of the strong catalytic effect of Co. In this work, a new...

In this paper, experimental study is carried out for the mixed mode notch-crack transformation propagation in 06Cr19Ni10 austenitic stainless steel with consideration of the material orientation. It is found that after initiation, the new formed crack grows in a direction perpendicular to the applied...

The influence of annealing temperature on the microstructure and H2 sensing properties of Pd-doped SnO2 sputtered thin films were investigated. The as-deposited film was amorphous and would crystallize to tetragonal SnO2 structure when the annealing temperature was above 350°C. The films were composed...

In this work, in order to solve the problem of longitudinal water resistance for XLPE power cable, nine kinds of corrugated aluminium sheath with different embossing depths and pitchs were pressed by argon arc welding machine. Each sheath was cut into six equal parts to study lateral pressure. After...

MB8 magnesium alloy was treated by using HJ-III type ultrasonic impact treatment machine. The effect of ultrasonic impact treatment parameters on the microstructure, residual stress in the surface and corrosion resistance was investigated. The test results indicate that the grain in the treated area...

This paper developed multi-layer corrugated steel plate isolators in order to meet the needs of isolation in marine power systems, and the main parameters which affecting the performance of corrugated steel plate isolator are studied through the static experiments. The experimental results show that...

The water polluters of Liao river in Liaoyang is elected preliminarily basing on the basin of the key water polluters of Liaoyang city, combining with the principle of polluters screening and the computing method of equal standard pollution load, optimizing and assessing the indexes which involves the...

Based on the small trial of tidal flow artificial wetland, alkali-treated corn straw is used as carbon source supplement for denitrification. The author studys the effect of adding different amount of carbon source on removal efficiency of TN, NH4+-N, NO3--N, NO2--N and COD in the system. The results...

With the Z-scan method, the nonlinear optical properties of the sample of Ethyl red (ER) in ethanol solution (in which the content of ER is 1% by weight) were measured using the lasers of three wavelengths (441.6nm, 535nm and 633nm) respectively. As a result, the effective indexes of refraction n2 of...

Large diameter bagged concrete bored pile has entered into the project practical stage as a new technology that guarantee the concrete durability in saline soil area, there is no construction norms, standards and test methods for large diameter bagged concrete bored pile at present. According to the...

Venturi scrubber is usually used to purify biomass gas. In order to improve efficiency of biomass gas purification of venturi scrubber, a test apparatus of the square section venturi scrubber was established to purify biomass gas. On the basis of analysis of the surge flow and the model selection of...

The content of diphenylamine in standard powder is determined by pure diphenylamine as external standard substance in this paper, the value of relative deviation is in the range of ±3%. The method was applied to the analysis of samples of powder, the vales of RSD (n=6) were found to less than 3% and...

Regeneration technology for waste rubber has been an important research subject in rubber industry for many years, but currently the enterprise mature reclaimed technology, mostly existence of high pollution, high energy consumption problem, can not meet the requirements of energy saving and environmental...

A nanocomposite film based on Dawson-type polyoxometalate cluster (P2W18) carbon nanotubes (CNTs) and chitosan (CS) were prepared on quartz and ITO substrates by layer-by-layer (LbL) method. These lms were characterized by UV–vis spectroscopy, cyclic voltammetry (CV) and Scanning electron micrographs...

The addition of another electrochromic component has been considered to be an important way to obtain multicolor film. Herein, we fabricated the composite films containing polyoxometalate (POM) clusters, auxiliary materials and polyelectrolyte on quartz and FTO substrates by layer-by-layer assemble method...

It is usually with Q-switched technologies in order to obtain the peak power of laser pulses[1].This paper analyzes the characteristics and the electro-optic effect of LiNbO3(LN) crystal. We use LN as Q-switched crystal of 1319nm infrared laser and estimate its required voltage. The corresponding experimental...

The organics in the water after advanced treated and to be disinfected are classified basing on different characteristics. Compared with chlorination, the control of DBPs formation from different organics by chloramination is studied. The test results show that, the chloramine can reduces the TTHM and...

The interface delamination of waste plastic chip will seriously affect the value of their recycling reuse; therefore, it has been a hot issue in recycling researches of Waste Electrical and Electronic Equipment (WEEE). Based on the exponential cohesion theory, this paper has researched chip delamination...

To research on the equivalent of perforating through layered space plates and homogeneous steel, based on the rule that the limit penetrating velocity, the penetration process of tungsten sphere into layered space plates and homogeneous steel was simulated with LS-DYNA finite element code, the numerical...

By simulating the runner of the VARI molding process with PAM-RTM about the front floor of the car, examines the different injection methods, different influence of distance of hose guide for filling time, analyzing the resin flow patterns, the effects of the mold cavity pressure distribution and the...

In this paper welding residual stresses of welded H-beam considering both butt weld and fillet weld have been researched. Taking the welded H-beam frame as background, basing on technological parameters of arc welding construction sequence and the fabricated method, the three dimensions thermal-mechanics...

Using flashing combustion synthesized Si3N4 and silica fume as raw materials, the effects of firing temperature (1300°C, 1400°C, 1500°C, and 1600°C) and duration (3h, 6h, and 9h) on the synthesis of Si2N2O were studied. The results show that the main mechanism of the reaction is Si3N4 and silica fume...

The removal of decabromodiphenyl ether (BDE-209) from contaminated soil using sepiolite-supported nanoscale zero-valent iron was investigated. The experimental results indicated that the removal efficiency of BDE-209 from soil was greater than that of the nanoscale zerovalent iron (nZVI). The removal...

In order to accelerate the restoration and utilization of mine wasteland, this paper describes an optimization study on substrate materials. The optimization was based on nine well-planned orthogonal experiments (OA9 matrix). The experimental materials were tailings, turfy soil and sawdust, and the experimental...

The peridynamic is a kind of unique theory which can deal with continuous models, defect of crack and particles in a single framework. It does this by formulating problems in terms of integro-differential equation rather than partial differential equations. This theory can be used to investigate the...

An iron-cobalt alloy ceramic coating grows on the surface of Q235 carton steel in situ by the micro-arc oxidation technology; and the phase composition, elementary composition, surface morphology, surface roughness and thickness of the ceramic coating are analyzed by X-ray diffractometer, energy disperse...

The moisture content of sludge in sewage plant is 80%-85%,In order to disposal, sludge need to be deep dewatering. The test added in composite conditioner with calcium superphosphate in different proportion. Measure the moisture content ,ph and volatile organic matter. The experimental results show that,...

The effects of C/N on removal rate of COD and NH3-N of a continuous running hybrid biological reactor were discussed. The results showed that the removal rates of COD and NH3-N were both more than 90% in the normal condition. The bio-film played a key role in removing the COD and NH3-N in hybrid biological...

Chromium migration and transformation is a complex process in groundwater-rock interface, including a series of physical and chemical reactions, such as adsorption-desorption, redox, dissolution-precipitation, complexation-dissociation etc. It was affected by groundwater pH, Eh, the type and the content...

Researches on methyl tertiary butyl ether(MTBE) distillation desulfurization process are very common now, but the influence of the separation of tertiary butyl alcohol(TBA) in MTBE on this process was seldom reported. This paper analyzes the 2-column MTBE distillation desulfurization process in detail...

At present, Cyanidation is still undoubtedly the most important and widespread of the various hydrometallurgical technologies that were used in the extraction of gold and silver from primary ores and concentrates, Metallic zinc has long been known as being a good precipitant for precious metals from...

The activated carbon is a kind of adsorbents which has ample internal pore structure and high specific surface area, widely applying on chemical industry, pharmaceuticals, metallurgy industry, agriculture and environmental protection. The effects of operation parameters such as impregnation ratio, activation...

The research background and characteristics of compound bioflocculant (CBF) were introduced. The paper focused on research and application of CBF, including producing compound bioflocculant by Low-cost substrate and engineering application of CBF. Finally the research development of CBF in the future...

In the design of advanced aircraft turbofan engine, applying the continuous fiber reinforced metal matrix composites(MMC), which have excellent properties of good mechanics, resistance to high temperatures and light mass, to manufacture some of the key components is the effective way to realize thrust...

Objective To analyze the spatial structure and structure feature, then predict B-cell epitopes of Mycoplasma suis ORF9 encoding protein. Methods The secondary structure, structural feature and B-cell epitopes were analyzed and predicted by DNAStar software and IDEB. Results the secondary structure of...

In order to investigate in influence of coagulant concentrate on volatile components of hard cheese made from yak milk cheese samples with half normal concentration of rennet(0.5X), normal concentration of rennet(X), 1.5 times normal concentration of rennet(1.5X)and with double concentration of rennet...

The aim of this study was to explore the biomechanical effects of different frequencies whole-body vibration training on gastrocnemius in rats. The conclusion showed that (a) there was significant difference between high frequency group and control group, and there was extremely significant difference...

This paper studied the antibacterial activity of the anthocyanins from blueberry wine pomace. The blueberry wine pomace, which is by product in blueberry wine process, is rich in anthocyanins, and the anthocyanins extract from blueberry wine pomace, then the extraction was purified and components of...

To enhance the water repellent property of cotton fabric, cotton was grafted using dodecafluoroheptyl methacrylate (DFHMA) monomer via atom transfer radical polymerization (ATRP) method in aqueous media. The structure of grafted cotton fabric was characterized by scanning electron microcopy (SEM) and...

The effects of current on restoring velocity and deformation time of NiTiCu shape memory alloy wire were investigated by loading different electrical current. The results show that the deformation time decreases rapidly with increasing driving current, but the deformation time decreases slowly when the...

A new design was proposed in which the Engineered Cementitious Composites (ECC) was used to improve the seismic behavior of the reinforced concrete hollow bridge piers. The ECC jacket was used both in and out of the cross section of the hollow bridge piers to improve the strength and ductility of the...

TiO2 sol is prepared by sol-gel method, nano-TiO2 thin film on ceramic surface is prepared by dip-coating techniques and is tested by using XRD and AFM, and bactericidal activity of nano-TiO2 thin film is separately studied by Natural fell bacterium experiments and Artificial fell bacterium experiments....

By using kaolin suspension as the research object and the coagulation test as the basis, the optimum dosage and the fractal floc characteristics of high turbidity and low turbidity water processed by the biological flocculant (BFs) and FeCl3 were investigated. The results demonstrated that the optimum...

CuO nanoparticles (NPs) are widely used in commercial applications. With increasing CuO NPs production, CuO NPs are likely to present in the environment and pose a potential threaten to ecosystem. In this work, 20 and 50 mg/L CuO NPs and 0.15 mg/L Cu2+ were used to test the toxicity to Arabidopsis thaliana...

Particulate pollution is a major kind of atmospheric pollution. The fine particles are seriously harmful to human health and environment. Acoustic agglomeration has been proved as a promising pretreatment to control the emission of fine particles. Based on the acoustic agglomeration, this paper investigates...

Biodegradation of pyrene and indeno(1,2,3-cd)pyrene in reed rhizosphere soil was carried out in a small-scale wetland simulator using reed as well as microorganisms immobilized on cinder beads under natural environmental conditions. The results show that the stability of the introduced strains was enhanced...

The Ying Shan formation carbonate systems is identified 11 kinds of sequence boundary characteristics ,generalized 3 genetic types of sequence boundary and divided into 5 third-order sequence(Sq1-Sq5) to establish sequence stratigraphic framework in Ying Shan formation , Tarim Basin by the integrated...

Homogeneous aqueous suspensions of graphene have been prepared by chemical reduction of graphene oxide in the presence of poly(3-aminophenylboronic acid) (PABA) in alkale solution. The graphene sheets in thus prepared suspensions can stable several months and can be switch to aggregated state with lower...

Nitrogen-doped nano-sized titania N-TiO2 photocatalysts were prepared by sol-gel process followed by ultrasonication.The photocatalytic decomposition of methyl orange in aqueous solution was used as a probe reaction to estimate their photocatalytic activities.Applying means of XRD,TEM and UV-Vis DRS...

The morphology may significantly influence the properties and applications of materials, thus the ability to tune the structure, size, and shape of inorganic materials is an important goal in obtaining nanomaterials with novel properties. A novel and facile synthesis route for the manufacture of porous...

Cuprous oxides thin film with different morphologies were formed on F-doped tin oxide (FTO) covered glass substrates by potentiostatic deposition of cupric acetate. The effects of electrodeposition temperature and Br on the crystal morphologies of cuprous oxide were studied. Different crystal morphologies...

Controlling the morphology of inorganic nanomaterials attracts more and more attention, due to the influence of morphology on the material properties and application. The nanostructures of nickel oxide (NiO) has attracted great interest because of its unique physical and chemical properties for a broad...

Biodiesel, a biodegradable, sustainable and clean energy has attracted growing interest in recent years, mainly due to development in bio-diesel fuel and ecological pressures including climatic changes. In this study, lipase strains FS14 extracted from soil which is polluted by oil and fat were analyzed...

Using plasma technology for pre-processing of kaolin by sedimentation settling tests to verify the performance of kaolin change.Then silane coupling agent and ethanol pretreatment plasma technology kaolin modified by sedimentation experiments to study its effect modification. The results showed that:...

The hercynite synthesized at 1600 in protection atmosphere was thermogravimetrically analyzed. The results show that the change of oxygen partial pressure during sintering transforms some Fe2+ in the hercynite crystal structure into Fe3+ but the hercynite structure remained. Based on the modal for hercynite...