Graphene is a kind of two dimensional material. Great attentions have been paid on graphene based components due to its perfect and mysterious electronic characteristics. Flexible supported graphene field effective transistor (GFET) were prepared, solution gated by an Ag/AgCl reference electrode in the...

In the process of we studied chromosome modifications, we found the previous studies only focused on linear relationship between chemical modifications. So we interfered the data sets of the Yeast histone Methylation modification and Acetylation which are measured by Pothook et al. We got 16 kinds of...

Extraction salidroside with the aqueous two-phase system. Through several single-factor tests: Polyethylene glycol (PEG) molecular weight, the mass fraction of PEG, the kinds of salt, the salt mass fraction and ionic strength. Get changes Salidroside extraction rate. And, obtain the optimum conditions...

Using aqueous two-phase to extract alkaloids in coptis chinensis. By changing the aqueous two-phase systems (molecular weight and concentration of polyethylene glycol (PEG), kinds and concentration of salt), and researched the distribution behavior of four major alkaloids in rhizoma coptidis: berberine,...

A low frequency living beings electrotherapy instrument is designed which is based on the transcutaneous electrical nerve stimulation. This system uses ATmega32 (MCU) to control its output and display. The hardware part includes the keyboard, the LCD, the alarm circuit and output circuit .The other part...

Jiangling depression found in oil exploration in its deep Tertiary volcanic rocks containing potassium-rich brine, unusually high grade potassium, potash is an important resource. Potassium-rich volcanic important reservoir brine, and depression has a wide distribution in the volcanic area of great thickness,...

Late Cretaceous Yaojia-Nengjiang Formation in Songliao Basin is a set of sedimentary formation with the integrated base level rising and falling. The oil shale, formed during the maximum flooding surface period at the bottom of K2n2, distributed steadily in the whole basin. The oil shale was not only...

In order to evaluate the potential ecological risks of near shore area of Fujian Province, four surveys on marine water quality at 20 monitoring sites were carried out during the major and minor tides in the autumn of 2010 and the spring of 2012. The results showed that the background values of heavy...

In this paper, a reduced state space model, based on linear model order reduction methods, is proposed. By this model, hollow block wall can modelling in multi-dimension, dynamic thermal properties can be described clearly, and the variation of internal surface temperature can be simulated accurately...

For the problems of the collophane backwater in the production process, experimental study on the phosphate backwater in Yunnan has been carried. It examined the effect of main ions on the flotation backwater. It found that it will deteriorate collophane flotation index when the content of Ca2+, Mg2+,...

Since there has been no feasible way to remove wet flue gas of coal heating surface fouling, modern coal technology forced to raise the temperature of flue gas emissions, keep the flue gas temperature above the dew point of the flue gas acid run, so the flue gas heat abandoned lead a lot of waste. Installation...

The Northern Yinchuan Plain is a productive agricultural area of northwest China, which is under threat due to soil salinization. According to the formation and restoring history of soil salinization, the analytic hierarchy process (AHP) was adopted for analyzing the causes of soil salinization and efficiency...

This study mainly focused on the dehydration of xylose to furfural with green catalysis. The reaction was under atmospheric pressure, with the as the catalyst plus an inorganic salt (NaCl) as promoter. DMSO was used as a renewable extraction solvent in a biphasic system. The optimal catalytic reaction...

Four assessment methods (two pollution index and two fuzzy mathematical models) were employed to investigate the environmental quality of eight soils around a heavy metal contaminated site. From the results of analysis, comprehensive index model is more reasonable compared with the single-factor index...

This paper analyzes heavy metal content in the soil of abandoned tailings and dominant plants, and absorption and bioconcentration capability as well as cumulative characteristics of the four kinds of dominant plants such as Phragmites australis, Typha angustifolia, Miscanthus sinensis, Equisetum fluviatile...

Hebei Quzhou aeromagnetic anomalies is located in near Handan Iron ore concentration area, Through the anomaly area geological structure characteristics, rock ore property and magnetic anomaly characteristics of comprehensive study, that it has the potential to Quzhou aeromagnetic anomalies further search...

This paper utilizes the conductivity method, critical pH method and turbidity measurement to select RO scale inhibitors. Six kinds of RO scale inhibitors both at home and abroad are used to explore feasibility of the three methods. The results show that, all of them can be the rapid screening methods...

The degradation and flocculation of tetracycline (TC) with nanoscale zerovalent iron (NZVI) modified by starch were investigated using batch experiments as a function of reactant concentration, pH, and ion strength. The 500 mg/L TC was processed with 0.20 mg/L NZVI, the adsorption and degradation effect...

The reservoir of Late Cretaceous Yaojia-Nengjiang Formation in Songliao Basin was a large-scale delta complex formed in the transgression and regression period, which had the characteristics of sand body in distributary channel, mouth bar and sheet sand. The sand bodies extended to the lacustrine center...

This paper describes the traditional design methods for airport pavement thickness and noted deficiencies, and pass through the cumulative damage theory - coverage of theory, the choice of NCHRP 1-26 fatigue equation is proposed for heavy traffic airport cement concrete pavement thickness design methods.

In order to optimize the application of biodiesel for diesel engines, the low-temperature fluidity, pulverization and evaporation, erosion capability and invariability of diesel and fatty acid methyl ester (FAME) were compared and analyzed. The cold filter plugging point, solidifying point, distillation...

Multi-objective decision making method can make the evaluation process with intuitive and transparent, easily accepted by the people; rules of its evaluation process and realistic simulation calculation it will help to reduce the decision-making errors; multi-objective decision may also apply to group...

Based on Density Functional Theory, we investigated the optical structures and the electronic properties of Cu doped SnO2 with density of 4.35%, including band structure, the density of state (dos), reflectivity spectrum and optical absorption spectrum. The results show that Fermi level access conduction...

This article introduced the technologies of die to package .these mainly including wire bonding(WB),tape-automated bonding(TAB),and flip chip(FC).the most common wire bonding technique is ball bonding. This is the foundation of the others .at the end parts, the paper illustrated the new interconnection...

Composite emulsion coating with polyaniline and core-shell fluorine-containing polyacrylate emulsion (PANI/ FPAc) was prepared for protecting Q235 steel in this paper. The structure of PANI emulsion particles and core-shell FPAc emulsion particles was observed by transmission electron microscope (TEM)....

The effects of Fe doping on the electronic properties of MgO have been studied by ab initio method. Iron (Fe) changes the lattice constants while does not change the cell angels. The calculated band shows MgO is an insulator. Iron doping introduces a band level in the band gap, which increases the conduction...

We have studied the electronic properties of MgO by first principles (CASTEP program). The calculated band gap of MgO shows MgO is an insulator. Pressure increases the band gap from 4.253 to 7.585 eV. The band above the Fermi level shifts to higher energy, while the band below the Fermi level shifts...

In the paper a new solder is made by adding trace LaNd into Zn9.3Al7Cu alloy to improve the performance through alloying principle. The impact of the content of LaNd on physical properties of Zn9.3Al7Cu solder is investigated. Results show that the density of solder alloys increases with the increasing...

Cobalt oxide/graphene (Co3O4/rGO) was successfully prepared using hydrothermal method. The major aim of the study is to investigate the photocatalytic activities on the removal of methyl orange (MO). These as-prepared catalysts (Co3O4, rGO and Co3O4/rGO) were investigated for the degradation of MO via...

Potassium channels are one of the most complex and wide-distributed channels in neurons, which have concentrated more and more attention, because it is an important signal pathway in the neuronal apoptosis and pathogenesis of Alzheimer's disease and neuron apoptosis. In this study whole-cell electrophysiological...

Intercalated and exfoliated montmorillonite/amidoximated polyacrylonitrile (IAPAN/Mont and EAPAN/Mont) were prepared by using in situ polymerization technique. Intercalated Mont/APAN was obtained through polymerization with organ-montmorillonite and acrylonitrile. However, it became exfoliated when using...

This paper describes an approach to identify the influence of different stress type on hydrogen diffusion of the specimen which contains both tensile stress and pressure stress. The numerical method of simulating hydrogen diffusion by using software Abaqus is used to determine the influence. The simulated...

Serious blisters were found on the shell surface of the gas tank which operated in wet H2S environment during a regular inspection. Gas sampling device was used to determine that the gas in the blister is hydrogen. The causes of blisters were analyzed and investigated by means of chemical analysis, metallographic...

Poly (2-aminothiazole) was synthesized by chemical oxidative polymerization of 2-aminothiazole, through selecting the appropriate reaction medium and simply modulating reaction parameters such as reaction time, temperature and oxidant concentrations, the chemical structure, product yield and the thermal...

In this paper, we present a hybrid bacterial foraging optimization (HBFO) by combining the time-varying chemotaxis step strategies with dynamic topology structure. Specifically, we adopt four kinds of time-varying chemotaxis step methods which use the dynamic topology structure to improve convergence...

Rock burst in metal mine has been the main problem which interferes with mining working at depth. And its corresponding formation mechanism is so complicated that the rock burst theory cannot come up with the practical engineering research. So it is necessary to establish the corresponding geological...

In order to solve the problem of pollution in the strip steel pickling process, we propose a new process of wet shot blasting, adding water system in the conventional shot blasting equipment. Through the finite element software ANSYS/LS-DYNA, we conduct the dynamic simulation of dry and wet shot blasting...

Traditional SCR control methods can't fit the high efficiency SCR and keep the coherence of production. Model-based SCR control methods is developed to compensate the defect. A simulation model for a Cu-zeolite SCR catalyst has been developed. The model is capable of predicting the conversion of NOX,...

Silicon carbide (SiC) is a kind of material with high specific stiffness, thermal conductivity and low thermal deformation coefficient, which is currently in active demand in aeronautic and astronautic industries. However, the beneficial properties of high hardness and high strength cause problems in...

In the process of producing PAN precursor used in carbon fiber, applying orthogonal experiment method and a dry-wet spinning technology, the main systematical study are the influence of coagulation bath, jet stretch, pre-draft and water-bath draft on degree of orientation. Results show that under applying...

In order to investigate the simplified design method for damper installed on cable-stayed bridge in near-fault zones, this paper proposed two-particle model for cable-stayed bridge and established the differential equations of motion. Parameter design formula for linear viscous damper is derived based...

N-nitrosamines (NAs) are harmful substances which have been detected in meat products. In this study, four NAs namely nnitrosodimethylamine (NDMA), n-nituosomethylethylamine (NMEA), n-nitrosodiethylamine (NDEA) and n-nitrosopoperdine (NPIP) was determined in the process of Chinese preserved meat. GC-MS...

Atomistic modelling and simulations are becoming increasingly important in the field of corrosion inhibition. In this work, Monte Carlo simulations technique incorporating molecular mechanics and molecular dynamics was used to simulate the adsorption of two Schiff base derivatives, namely 4-(4-aminostyryl)-N,N-dimethyl...

In recent years, environmental protection and management of drinking water sources have aroused widespread concern in the community. In this paper, firstly introduce the basic information of the water source; secondly analysis the reserve source of pollution status of drinking water and evaluation; in...

By means of magneto hydrodynamic modelling based on magnetic vector potential and UDF programming, a numerical simulation is conducted for the heat transfer and flow process in the free-burning arc, which enables the coupling calculation of flow field and electromagnetic field. In consideration of the...

The influence of spray casting technique on martensitic transformation temperature, magnetic properties and compressive properties of Ni50Mn25+xGa25–x (x = 0, 1.25, 2.5, 3.75 and 5) alloys was investigated. With the increase in Mn content, martensitic transformation temperature of the spray casting samples...

Several SO3H-functionalized acidic ionic liquids (ILs) were synthesized by two-step method, using 1, 3-propane sulfone and 1, 4-Butanesultone as raw materials, respectively. It is noteworthy that the ionic liquid using 2-ethyl-4-methylimidazole as source has not been reported. Esterification of 1-butanol...

This paper is committed to study Chinese provinces energy efficiency and energy saving potential, trying to provide decision-making information for China’s emission reduction targets and policy formulation. For this purpose, this paper chooses slack-based measurement DEA model, improved to a standard...

In The technology of surface alloying by electron beam had been developed as a new surface treatment in recent decades. Based on the introduction of the principle of electron beam, focuses on the research status of the surface alloying by electron beam, and a brief introduction of the Surface alloying...

Tube hydroforming is a developed and successful way for complex shapes with less operations required compared to conventional tube forming. Tube hydroforming technology is introduced briefly. Then the principle of forming, advantages and disadvantages of hydraulic bulging, Tube Hydroforming with Radial...

Chloride and freeze-thaw cycles are two main factors which cause deterioration of reinforced concrete (RC) structure in the cold regions. In this paper, the process of chloride ingress into concrete exposed to freeze-thaw cycles is experimentally researched. From the experimental results, it appears...

The paper introduces the basic structure, physical and chemical property as well as the own defects of epoxy(EP), making a summary of main ways of improving EP. By analyzing the advantages and disadvantages of the mechanism and technological approaches which organic silicone, nano particles and polyurethane...

Interface debonding is one of the most commonly observed failure in the Solid Rocket Motor(SRM). In order to investigate the debonding properties, the experiment was conducted by using double cantilever beam(DCB) specimen, and the strain energy release rate was obtained based on the load-displacement...

In order to study the stress distribution law of simply-supported bridge deck pavement the finite element software ANSYS is used to building the overall structure model of the composite bridge deck. The huge difference of materials of interface of concrete cushion layer and asphalt pavement layer in...

In order to study the pyrolysis process of Ethylene Propylene Diene Monomer (EPDM) insulation material and its compression mechanical behaviour under high strain rates, the thermal stability of EPDM was analysed by TGA in the first place. Based on the TG curve and the thermal degradation temperature,...

Compression tests of Mg-4Al-3Ca1.5Zn-1Nd-0.2Mn Magnesium alloy as-extruded were carried out on the Gleeble-3500 thermo-mechanical simulator. The compression testing temperatures were in the range of 200–350 at intervals 50 , while the imposed constant true strain rates were 0.001, 0.01, 0.1, 1 and 10S-1.True...

With the rapid development of science and technology, all kinds of high technical equipment is facing more and more serious problem of vibration isolation buffer under special environment. In order to adapt to this new situation, we designed the metal rubber vibration isolator. Firstly, this paper briefly...

In this paper, based on the chemo-thermo-poroelasticity model of saturated porous medium undergoing the local thermal non-equilibrium (LTNE) conditions, the pore pressure and chemo-thermal stresses around a spherical cavity in an infinite fluid saturated porous medium subjected to sudden variations for...

SWCNTs are widely used in the fields of biomedicine, electronics and energy storage. With the increasing of SWCNTs production, SWCNTs are likely to present in the environment. In this work, a series of concentrations of SWCNTs were used to test the toxicity to human epithelial cells (A549). Results showed...

The insulation photovoltaic Building component is a new kind of energy-saving building material with the function of heat insulation and new energy transformation. Because of combustible organic insulation materials and fire risk caused by control circuit fault, the fire performance must be concerned...

An appropriate fatigue crack growth model is the key to accurately evaluate fatigue life of component. Researching on the McEvily model, considering the influence of elastic-plastic behaviour and crack closure, a modified elastic-plastic small crack propagation characterization model is proposed. The...

In this paper, we discuss the influence of different preheating temperature and welding speed on welding residual stress through numerical simulation, which takes a certain type of emu car KK middle end of T type welded joint as an example.Using the double ellipsoid heat source model checking got temperature...

CTA-based membranes for forward osmosis (FO) were prepared by immersion precipitation. Casting composition and coagulation conditions—solvent/acetone ratio, temperature, evaporation time of coagulation bath—were optimized to obtain membranes with best performance. Membranes were characterized by various...

Nanostructure anatase TiO2/carbon nanotubes (TiO2/CNTs) were prepared by hydrothermal process using acid treated CNTs and titanium (IV) sulfate. The materials were characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET). The results showed...

In this paper, the static and dynamic performance of balance model foam concentrate mix equipment and establish mathematic model of this machine, and analyze by using AMESIM simulation software. According to the national standard foam extinguishing system and parts general technical conditions to relevant...

Using Chagan Lake area as the study area and based on the DN value of sixth band of the Landsat 5 TM image of the region in 2011, this paper uses mono window algorithm to inverse the real surface temperature of the study area under the regional thermal radiation condition and curtained atmospheric transmissivity...

In this paper, Au nanorods and Au@Ag nanorods were synthesized by seed –mediated growth process, and the Colloidal quantum dots CdSe/CdS/ZnS were produced by successive ion-layer absorption and reaction methods. A low-cost and practical ligand exchange of oil phase quantum dots and amino-functionalized...

In this paper, a CFD-based release model is presented to study the release process of alkali metal and predict the deposition in the furnace. In the release model, potassium chloride (KCl) is chosen as a representative alkali. The results showed that: the concentration of KCl, mainly releases in devolatilization...

To address the shortcomings of single use of existing fire prevention materials, a novel composite that combined the characteristics of yellow mud and gel was designed and investigated. The composite grout composed of yellow mud and polymer gel can overcome the limitations of single fire prevention materials...

Well spacing is a critical factor to figure out when planning to drill new wells in low permeability reservoirs. In this paper, horizontal multistage fractured well spacing is optimized for several scenarios in H reservoir using PEBI grips. To find the optimum well spacing, sensitivity analyses are carried...

The development environment of Yangluo Port will influence the port’s development strategy. This paper applies the Fuzzy Analytic Hierarchy Process (FAHP) to the evaluation of port’s development environment, and provides a mathematical model about it, then gives the formula of weight. Through making...

In this paper, an energy analysis model is set up in order to clarify the effect of insulation materials on the thermal performance and the energy consumption of building envelope. Three types of insulation materials commonly used in Germany including mineral fiber, polyurethane and vacuum insulation...

China depends heavily on coal to meet its electricity and economic development needs for a long time and it has surpassed America and became the biggest greenhouse gases emission country in the world.The appearance of biomass energy power generation has been easing the tension of domestic energy and...

The combination of free planes in the corner of an underground chamber is complex. If the fractures cross the roof and walls, or floor and walls at the same time, a complex key block may exist. The theorem of finiteness in the classical block theory applies only to the convex block, and not to the non-convex....

A study is carried out to investigate the influences of compounding process and surface treatment on nanometre-sized TiO2 filled polystyrene. The compounding process is discussed with a torque rheometer. The TiO2 filler is surface-treated with a liquid titanate coupling agent. The effects of coupling...

It is one of the main failure forms that stress corrosion cracking (SCC) of nickel base alloys and stainless steels in the nuclear pressure vessels and piping. Current researches show that SCC is a process of oxide film rupture and reform. To understand the micro-mechanical state at the SCC crack tip,...

The beam element, solid finite element models are established in this paper, which are studied the effects of different curvature radius to the shear lag effect in curved box girder. The analysis results show that the inner side and the outer side of the shear lag coefficient of curved box girder bridge...

This paper used parallel test of single factor to investigate preparation method, the excipient, the water-soluble filler, the wetting agent and the drug loading for Pulsatilla Chinensis (Bunge) Regel total saponins-hydroxypropyl- -cyclodextrin inclusion compound pellets. The results showed that the...

This paper used parallel test of single factor to investigate feed ratio of inclusion compound, drying method, the volatilization temperature of ethanol for Pulsatilla Chinensis (Bunge) Regel total saponins-HP- -CD inclusion compound. The results showed that the best preparation process of inclusion...

Ozone pre-oxidation removal of MC-LR better, under the condition of pH4,ozone for MC-LR removal of 76.22%,than the original water removal increased by about 11%.With the increasing value of pH, ozone for MC-LR removal decreased, but higher pH beneficial ozone removal of turbidity, UV254, TOC and CODMn....

The information of surface topography and structure of coating layer were significant to the chemical-physical properties of coated paper as well as the print quality The main aim of this study was to investigate the effect of coating solid on the binder distribution in the method of numerical analysis...

The surface physical and chemical properties of coating layer have an important effect on the final printing quality. In this study, the main aim was to investigate into the surface characteristics and surface microstructure of coating layer. The surface chemical property was explored by OCA to obtain...

Metallographic examination is a traditional technology. In this paper, etching method of macro inspection of metallographic was set as an example. Through analyzing the example by Su-Field Model and Physical Contradictions, we convert a practical problem into a TRIZ problem, and find out the final solution...

In the power supply system of electrified railway, traction transformer is an important part and its running state plays an important role on the safety of railway operation. In this paper, we will analyze the transformer load curve, simulates the change of the temperature rise and discuss the influence...

Binder is the essential component of coating color recipe, which has an important influence on the surface topography and properties of coating layer. In this research, the main objective was to investigate into the coating surface binder content related to the coating color recipe. The surface binder...

In the 21st century, energy demand has become a global problem, China's wind power energy jumps forward from start to large-scale development and its use also shows the characteristic of diversified development and thus requires the research of its related technology and personnel to ensure that the...

Frequent high temperature has become an important agricultural meteorological disaster to the middle-season rice yield and quality in southwest China where has hot rainy season and obviously three-dimensional climate. This paper analyses the meteorological data of more than 70 weather stations in southwest...

Metal oxide electrical contact materials because it has excellent corrosion resistance, good weldability, high conductivity and high thermal conductivity, in the general application of relay is more and more common. In this paper, the research of system adopts the technology of the preparation of AgSnO2...

With the rapid development of our country's economy, modern society has entered the information age. Computer technology, communication technology and the development of computer network technology, automated information processing ability and level enhances unceasingly, information technology in all...

Coal quality detection is used to measure moisture in coal, ash content, volatile and quality percentage content of solid carbon, is an important way to understand the characteristics of coal, is also a fundamental basis of evaluation of coal quality. Coal quality analyzer is an important instrument...

In this paper, the blocked waterborne polyurethane crosslinker were prepared by polyaddition reaction with isophorone diisocyanate (IPDI), polypropylene glycol-2000 (PPG MW2000) and dimethylolpropionic acid (DMPA) as internal emulsifier, sodium bisulfite (NaHSO3) as blocked agent in presence of dibutyltin...

The process for the synthesis of flyash-based superfine zeolites-Y (FAZ) were presented, which basically included the alkaline fusion treatment of fly ash (FA), the gels formation by dissolved and aged, following hydrothermal crystallization. A detailed investigation was carried out to determine the...

ITO nanopowder of the high purity was prepared by self-desigred fabricated arc plasma apparatus. The crystal structure, morphology, particle size distribution and purity were characterized by X-ray diffraction(XRD) , transmission electron microscopy(TEM) and Inductively Coupled Plasma Action Emission...

The important tendency of the new style heat insulation materials is the research and development of the composites which have low thermal-conductivity in high temperature. The characteristics of the alumina-silicate fibre with K2Ti6O13 whiskers and SiO2.aerogel are discussed in this paper. Finally,...

Au/HZSM-5 catalysts were prepared by negative deposition-precipitation method in this paper. XRD/Uv-vis/TEM/NH3-TPD/FT-IR technologies were used to analysis the characterization of prepared catalysts, and the evaluation of the catalysts was carried out by methane adsorption experiment. XRD and TEM showed...

The optimization of activator used in SnBi lead-free solder paste were carried out by welding experiments with the spreadability and the spot morphology as the main comment indexes.And the properties of the composite activator which was mixed by two activator possessing good performances were studied....

This paper prepared MoS2 water-based and oil-based nanofluids with different mass fractions by two step method, and investigated their stability, thermal conductivity, and surface tension. The thermal conductivity of MoS2 oil-based nanofluids was calculated using the classic model, and compared with...

Because of facile synthesis, carbon nanotube (CNT) fibers from chemical vapor deposition can be used for diverse applications. In this study, the electrical property of CNT fibers was investigated. The room-temperature electrical conductivity of a typical CNT fiber was measured to be 5 105 S/m. The electrical-conductivity...

A procedure for solid-phase microextraction fiber preparation was introduced, which combined a quartz fiber substrate with a blend of SiO2 sol–gel and PVA, as a way of increasing both the adhesive ability and the extracting capability of fibers. Double cross-linked network of organic and inorganic layer...

In this work, a new covalent triazine framework based on phthalazinone-containing dinitrile building blocks was prepared by the dynamic nitrile-trimerization reaction. The FT-IR spectra of BCTF illustrated the characteristic peaks of the triazine at 1503 cm-1 and 1360 cm-1. The nitrogen sorption isotherm...