In the process of drug synthesis when choosing synthetic route, it is necessary to fully consider the positioning effect factors and pay special attention to effects caused by the compound of different orientating groups so as to give full play to the role of the synthetic drug and achieve the desired...

In recent years, molecular imprinting technology rises gradually along with the development of science and opens a new perspective for the study of environmental science. In this chapter, the author introduces the principle of molecular imprinting technology briefly and explores the application of molecular...

Recently, human beings have begun to attempt to use perovskite materials to manufacture the solar battery to attract the high attention of researchers from solar industry and research community, since such kind of battery is featured with comparable singleness and low manufacturing cost that are favorable...

Biological treatment with sulfate-reducing bacteria (SRB) has been considered as the most promising alternative for acid mine drainage (AMD) pollution control. Here we reported some characteristics of SRB, which was isolated from sulfate rich and low pH waste water. It was a sulfate-tolerant bacterium....

Triaxial creep test, was conducted on Yan'an Q2 loess under different moisture contents and confining stresses. The creep strain-time curves were obtained. Based on the test results, the stress levels, confining pressures, and moisture contents were all found to have great impact on the creep properties...

Objectives Chinese milk vetch (Astragalus sinicus) is a major green manure planting in southern paddy fields. This paper designs an experimental to discuss the effects of incorporation of milk vetch on paddy soil microbes, including theeffects on microbial population, the effects on microbial biomass...

To control the quality of Ginseng medicinal fungal substance which is a new bidirectional compound fermentation of Ganoderma strains and Ginseng herbs, a simple and reliable method of high-performance liquid chromatography (HPLC) was developed for fingerprint analysis. The fingerprint of Ginseng medicinal...

The effect of lactic acid(C3H6O3 ) and citric acid(C6H8O7•H2O) in Ni-P alloy brushing liquid to Ni-P Alloy Brushing depositing speed and bear to decay ability is studied. Test a certificate, depositing with the increment of the lactic acid content speed to lower after increasing first; With the increment...

Fracture system is main geological factor to control the formation and preservation of oil gas reservoir. And deepening the understandings to the formation and evolution of petroleum basin fracture are necessary for us to know the geological condition used for form the oil gas in petroleum basin and...

CFRP is one of the most popular building materials nowadays. People have high hopes for its development and application. While in CFRP possesses the merits of light weight, high strength, fatigue resistance and so on, at the same time, its resistance to damage tolerance is low, the high temperature and...

This paper mainly studies the shielding performance, under gamma and neutron radiation, of three different laminated plate made of different materials. Through MCNP simulation test, making a comparison of particle flux size under the same gamma and neutron radiation. Coming to a conclusion that among...

In this work, the molecular dynamics simulations are used to investigate the mechanical behavior of the imprinted nickel aluminide alloys. These atomic simulations account for the mold size, working temperature, imprinting velocity and the elastic recovery. It has been found that there exists a significant...

The method of the selective catalytic reduction (SCR) has become one of the most effective applications of NOx removal technology. Most studies focus the side on fixed bed denitrification at low temperature low space velocity experimental condition, while few studies about denitrification at low temperature...

The compound pile wall is a new supporting structure type. It has strong ability to reduce the pressure of water and soil. Its stiffness is between that of gravity retaining walls and cantilever-retaining pile wall. The stress of the front pile is affected by the moment of the wall, the concrete stiffness...

To research the anti-freeze performance of road fiber concrete in erosion solution, trabecular specimens that contained three kinds of water-cement ratio (0.44, 0.42 and 0.40) was formed. Half of it were treated with protective agent and then placed in distilled water and 10% Na2SO4 solution. The mass,...

Tartary buckwheat is a kind of food and medicinal material and it contains abundant protein. Tartary buckwheat protein has the characteristics of indigestibility and other physiological activities The main purpose of this paper is research the prebiotic effects of protein extract of tartary buckwheat...

This paper analyzed the vertical and seasonal distribution of Cd in Jiaozhou Bay bottom waters in 1983. Results showed that Cd contents ranged from 0.13-0.53 g L-1, indicated that the pollution level of Cd in Jiaozhou Bay was very low in the early stage of reform and opening-up. Cd contents in surface...

This paper analyzed the change of benzene hexachloride (HCH) content in Jiaozhou Bay during 1979-1989, and further expatiated theories of water’s effect, vertical water’s effect, and horizontal water’s effect, as well as the definitions, processes, and the model diagrams. Furthermore, these theories...

Based on the investigation data on Pb in Jiaozhou Bay in May, September and October in 1983, were analyzed the horizontal and seasonal distribution of Pb. The results in this paper showed that Pb contents in surface and bottom waters were closed in the bay mouth in different seasons. For seasonal distributions,...

Tert-butyl 4-((2-methoxy-4-(methoxycarbonyl) phenoxy) methyl) piperidine-1-carboxylate (1) is the key intermediate of Vandetanib. It was synthesized from piperidin-4-ylmethanol (2) through three steps Including acylation, sulfonation and substitution. The structures and the synthetic route were determined...

To effectively reduce the effects of nitrogen pollutants on water environment. Selecting the rice-growing area of Liaohe River estuary in Panjin City of Liaoning Province as the research object, Different sections and the different stages of a single fertilization in ditch is sampled to measure and analyze...

With the rapid development of our economy and the improve of people’s living standard, domestic sewage has become an important pollution source, while rural water pollution is mainly the result from the discharge of untreated domestic sewage. Decentralized treatment of domestic sewage has become a new...

La-doped ZnO thin films were deposited on the substrates of slide glass and Si by sol-gel method. The La/Zn ratio was 1%, 2%, 3%. All the samples were characterized by X-ray diffraction (XRD), atomic force microscope (AFM), ultra-violet spectrometer (UVS) and photoluminescence (PL). All the samples have...

In this paper, we prepared PANI/TiO2 nano-composite fibers by the combination of Sol-Gel method and electrospinning technique. The results indicated that the PANI/TiO2 nano-composite fibers have uniform size and good configuration. The average diameter of the PANI/TiO2 nano-composite fibers is about...

The process of stable adsorption of CO2 molecules on CaO (100) surfaces were studied using a periodic slab model by PW91 of generalized gradient approximation (GGA) within the framework of density functional theory (DFT). The results indicated that the surface oxygen atoms (Osurf) are the most active...

In this paper, by orthogonal experiment to modify Hitec molten salt in order to look for the optimum formulation molten salt which has good thermal properties. After that the melting point, latent heat of phase transformation, specific heat capacity, density, and thermal stability of the modified Hitec...

Crystalline carbon and amorphous carbon are two of the major carbon structures found in coal. The influence of cross-linking reactions (CLRs) on the evolution mechanism of crystalline-amorphous carbon during bituminous coal carbonization was studied using X-ray and Raman crystallographic methods. These...

A novel drug delivery microsystem is proposed in this paper, which consists of the microstructure for drug loading and the bonding membrane with microholes for release rate controlling. The forming process of microstructure by hot embossing method was researched. For the microstructure was fabricated...

Adsorption method of purify water relies mainly on the adsorbent to adsorb the impurities in the water, this paper introduces the latest research progress both at home and abroad, such as activated carbon, chitosan, zeolites, clay minerals plant-based, industrial waste . These adsorbent type will play...

Multi-Microstructures are designed as the carriers of controlled drug delivery system, and the degradable polymer is the preferred material. When the deform method is hot embossing, the viscoelasticity of degradable polymer becomes one of the important parameters which affect the quality of microstructure....

The surface element deposition and corrosion behavior of AZ91D magnesium alloys multi-cut with high speed wire electrical discharge machine (WEDM-HS) is studied in this paper. The microstructure and surface morphology of the WEDM-HS surfaces were examined with scanning electron microscope (SEM). Chemical...

The vanadium redox flow battery is an electrochemical storage system which allows energy to be stored in two solutions containing different redox couples. Unlike commercially available batteries, all vanadium redox flow batteries have unique configurations, determined by the size of the electrolyte tanks....

Carbon-coated LiFeBO3 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 structures and morphologies of LiFeBO3 and carbon-coated LiFeBO3 samples were characterized by X-ray...

Fe2(MoO4)3 microspheres are fabricated by a facile hydrothermal process assembled from Fe2(MoO4)3 nanoplates. The microstructures and morphologies of the Fe2(MoO4)3 nanorods was characterized using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). The discharge capacity of Fe2(MoO4)3...

Multilayer graphene was grown on Ni foil(30µm) via atmospheric pressure chemical vapor deposition (APCVD) at different temperature of 800 ,900 ,1000 , we observe structural difference between the three process by in situ X-ray diffraction and Raman measurements, our experimental results show that temperature...

An approach for the synthesis of hierarchical mesoporous zeolite NaY, templated with Bis [2-hydroxy-3-(dodecyldimethylammonio) propyl]-diethylammonium Trichloride, is reported. The results show that the meseoporous zeolite NaY possesses both micro and mesopore system, and the mesopore size distributed...

A novel method for the determination of palladium in tetrakis (triphenylphosphine) palladium catalyst samples was established by inductively coupled plasma atomic emission spectrometry after samples digested by teflon pressure digestion vessel with aqua regia. Such experiment conditions were investigated...

This This Al2O3, SiO2, Ta2O5, Nb2O5, TiO2 single layer oxide thin film are prepared by using ion beam sputtering deposition technology. The oxide films infrared optical constants are fitted by infrared variable elliptic polarization Angle spectrum instrument (IR - VASE), the results show that the fitting...

Poly-olefin as drag reduce agent lost most of drag reduction capacity by shear degradation. The surfactant also was used as DRA, known to possess drag reduction and shear stability as formed reversible micelles. Combining poly -olefin and surfactant, the potential of surfactant as DRA anti-shear additives...

An electrochemical sensor was developed by reconstituting pyrroloquinoline quinone (PQQ), flavin adenine dinucleotide (FAD) and L-proline dehydrogenase on gold electrode. Reversible redox peaks and low redox potential were obtained from cyclic voltammograms, proved that the attached PQQ and FAD accelerated...

In this paper, we use the variable fiber reinforced reaction injection molding process to produce different kinds of fiber reinforced polyurethane composite materials. We analyze the effects of different types of fibers on the mechanical properties of the composites, while the tensile strength and bending...

Core-shell composites of silica-coated MF microspheres were prepared by the hard template of MF microspheres whose surface were clad with silica colloid in a spray drying induced in-situ coating process. Furthermore, silica hollow spheres were obtained by removal of MF cores at calcinations in air. The...

The objective of this work is to evaluate the effect of applying industrial grade MgO with different grades of metal impurity partially substituting NaOH as the alkali source on the hydrogen peroxide bleaching process. In this study, the effects of pretreatments, such as washing in deionized water, washing...

Graphitic carbon nitride (g-C3N4) attracts considerable attention due to its photocatalytic activity with visible light. In this paper, MgO/g-C3N4 was prepared by self-condensation of NH4SCN at high temperature under the presence of magnesium acetate, and its photocatalytic performance was measured by...

Micro-powder injection moulding (MIM) is the fastest growing technology within the powder metallurgy area. The reason for this growth is that it is an efficient production method. In this work, the fabrication of WC-TiC-6% was studied. The result showed that Solvent debinding + thermal debinding was...

The crystal grain of the cemented carbides can occurs in the process of sinteing of cemented carbides. Relational researches prove that appended inhibitors can prevent the growing of crystals in cemented carbides effectively. In recent years, appended Inhibitors in cemented carbides are studied at home...

Phase separation have been measured at the temperature of 25 , 45 and 65 for the polymer (agar) + solvent (DMSO) + no solvent (ethanol) ternary system by using a titration method. Through combining experimental data and empirical equations, ternary phase diagram was drawn to illustrate the mechanism...

Hexagonally ordered mesoporous silica SBA-15 was successfully synthesized for the first time using natural clay from low-grade potash ores of a salt lake in Qinghai, China, without addition of silica reagents. The influence of changes in processing parameters, such as activation method, hydrothermal...

Synthesis of binary amphiphilic co-networks coatings composed of well-defined tri-arm star diblock copolymers cross-linked with polyhydrosiloxanes through hydrosilylation was performed to generate antifouling surfaces. The PMHS segments of the networks endow the coating with a low surface energy while...

In this work, a well-defined amphiphilic triblock copolymer poly (methacrylic acid)-block-polydimethylsiloxane-poly (methacrylic acid) (PMAA-b-PDMS-b-PMAA) synthesized via atom transfer radical polymerization was employed for the preparation of pH-responsive poly (vinylidene fluoride) (PVDF) membrane...

magnesium alloy, electrombile hub, micro arc oxidation, quality.

The conjugated polymer poly(4,8-bis ((2-octyldodecyl) oxy)benzo [1,2-b:4,5-b'] dithiophene-co-p-didecyloxybenzene) (PBTB), was successfully chemically polymerized by reacting (4,8-bis ((2-octyldodecyl) oxy)benzo [1,2-b:4,5-b']dithiophene-2,6-diyl)bis(trimethylstannane) with respective 2,5- didecyloxy-1,...

Chemical copolymerization of 4,7-bis (4-hexyl-5-trimethylstannyl-2-thienyl) -2,1, 3-benzothiadiazole and 2,5-didecyloxy-1,4-dibromobenzene was carried out in refluxed toluene with bis(triphenylphosphine) palladium(II) chloride (Pd(PPh3)2Cl2) as catalyst to give donor-acceptor type poly(4,7-bis(4-hexyl-2-thienyl)-2,1,3-benzothiadiazole-co-p-didecyloxybenzene)...

There are various inclined angles between mountain ridge and wind direction in the wind farm under the condition of complex topography. It is next to impossible to simulate the shunt phenomenon in wind acceleration process use commercial software, especially the mutations of wind speed distribution in...

Hexagonal spindle-shaped mesoporous alumina was prepared using Al-based metal-organic frameworks (MOFs) MIL-96 as precursor through thermal treatment method. The MIL-96 and alumina products were characterized by XRD, SEM, BET and 27Al-NMR. Results from these characterizations showed that alumina products...

Recent years, China has gradually begun to promote the development of asphalt pavement with low carbon and environmental protection features in the field of asphalt pavement construction. However, at present, our country has not formed the corresponding asphalt mixture greenhouse gas emission reduction...

Fly ash is consolidated by cement and the new consolidation agent, and the two kinds of cube samples(40x40x40mm) used to consolidate the fly ash are made though the methods mentioned above; Comparing the strength of the samples for test resistance strength and flexural strength test after standard curing....

Inspired by biological systems, self-healing materials were achieved by incorporating microcapsules into matrix. Urea-formaldehyde microcapsules filled with EPA were prepared by in situ polymerization method. Surface morphology, size distribution, chemical structure, and thermal analysis of microcapsules...

Although traditional processing methods can be effective for removal of algal blooms of cells, also has the potential to provide a major breakthrough of microcystins in the course of normal operation. As a result, the presence of more advanced processing of algal toxins in drinking water treatment water....