With the increasing in production and application, graphene will inevitable be released into the aquatic environment and have impacts on aquatic organisms. In this work, we investigated the toxicity of graphene to algal cells (Chlorella pyrenoidosa) in the presence of dissolved organic matter. The results...

Adiponitrile (ADN) as a promising solvent is widely used in high-voltage system. However, its effect on the graphite is not so ideal, for the reason that thermal instability at low potential and lower lowest unoccupied molecular orbital (LUMO) energy (-0.02223 eV) of ADN result in the reduction decomposition...

LiAlxMn2-xO4 (x = 0.00, 0.05, 0.10, and 0.15) is synthesized successfully using a sol - gel method at 700 for 10 h in air. X-ray diffraction (XRD) results indicate the LiAlxMn2-xO4 has a good crystallinity. Scanning electron microscopy (SEM) images show tiny distinction about the morphology and size...

Olivine LiMn0.4Fe0.6PO4 (LMFP) materials were synthesized by the modified sol-gel method with the addition of sucrose as an additional carbon source. Electrochemical properties of LMFP were advanced. The materials doped possess high reversible capacity of 107.4 mAh-g-1 at 0.2 C-rate and excellent cycling...

In order to reduce the heat input in arc additive manufacturing, pulse current was adopted. Single-layer beads and multi-layer walls were deposited by direct current and pulse current. The morphology, microstructure and mechanical properties of forming components were analyzed. Experimental results exhibited...

In this paper, glucose and RDX as raw material, alveolate graphene was synthesized by shock wave in the detonation chamber. The results of TEM, HRTEM, SEM and XRD showed that alveolate graphene was synthesized in the wall of the detonation chamber. The ratio of RDX and glucose was an important role for...

Aiming at air pollution in Beijing-Tianjin-Hebei region, this paper carries out modeling analysis, considering different season pollutant composition and regional distribution differences; a kind of effective approach that analyzed air pollution relationship in the region is determined. In order to simplify...

For the consideration of wastewater zero discharge,many coal-fired power plants reuse the reverse osmosis concentrated water and chemical drainage in the desulfurization system ,but studies of influence to the CaCO3 dissociation by highly concentrated saline wastewater are rare. This paper analyzes negative...

In view of the factors that affect PM2.5, we set up two models. Multiple linear regression models were used in the establishment of internal factors. Consider that there are too many external factors, we adopt the dimension reduction method, using the principal component analysis method. Through the...

This paper studies the case of the methane release of the Okhotsk Sea slope, It is made a large scale acoustic sweep focusing on the east slope of Sakhalin Island based self-developed software SONIC. Detecting and judging the location of undersea methane gas leaks (GF),reisen and seabed, surveying morphological...

Metallic ceramic materials while maintaining the excellent properties of ceramic materials, but also have the advantages of a metal material, is an important new engineering materials. Iron-based composite applications broad, but not high abrasion resistance, wear-resistant engineering parts for such...

Anti- haze masks sell pretty well in recently years in north China. But it isn't a good thing. It means many cities in the northern China are under great pollution of PM2.5. Reducing the PM2.5 concentration and controling haze weather effectively are imminent.

In this paper, we have presented a simple model for making thin, angle-insensitive, broadband metamaterial absorber in microwave frequency. The proposed structure consists of a square loop imprinted on a aluminum-backed dielectric substrate. Numerical results show that a -10dB absorption bandwidth from...

Serious pollution of waste gas, waste water and waste residue are generated by calcium carbide-based polyvinyl chloride (PVC) production in China, especially the mercury pollution on account of using a mass of mercury chloride catalyst (HgCl2). This study introduced main methods and techniques which...

The Mesoporous Ge@C sphere has been designed via a modified St”ber method and an in-situ solution deposition. Compared with the pure Ge nanoparticles, the as-synthesized Mesoporous Ge@C sphere nanocomposites show much better cycling stability and rate capability. That as-prepared anode material can maintain...

Bioflocculant is a kind of natural polymer flocculant having a broad application prospect. Because it is non-toxic, biodegradable, no secondary pollution, etc, more and more attention is paid to its unique properties. The sorts of microbial flocculants are introduced briefly, and it also introduces the...

By exploring statistical process control (SPC) technology in the printing and packaging.

Soil water and nutrients are key factors for plant growth and development as they are involved in many processes in plants. The purpose of this study was to investigate the effect of water deficit in different growth stages on maize growth and water use efficiency. Randomized block design with three...

With the worsening of environmental pollution issues, applications of molecular biological techniques to the field of environmental pollution treatment have also drawn wide attention. These techniques can contribute to efficient treatment of environmental pollution through microorganism, and boast the...

The efficient and high coal output of China's opencut coal mining has made remarkable contributions to China's modernization construction. However, it should be noted that slope instability of opencut coal mines often gives rise to a series of geological disasters. Disasters of the kind will not only...

Second order nonlinear optical materials have been in a very important position because of its special excellent optical properties,The large nonlinear optical coefficient chromophore molecule is the key to the excellent nonlinear optical materials. In this study, the industrialized synthetic process...

The super capacitor has the advantages of high power density, short charging time, long service life and so on. It has a great development potential in the field of energy. Continued growth in market share will further stimulate the super capacitor of R & D, in order to meet the needs of commercial prepared...

Through 4 weeks HiLo training of 72 SD male rats, some very obvious changes of Rat skeletal muscle SDH was found in a quiet state. Some changes of SDH were found immediately after exercise but not obvious, but three hours later after exercise the change of Hypoxia and exercise compound group was more...

Fiber reinforced polymer Resin matrix composites have the good performance, and it is widely used in various fields to release the impact load. Over the past era of time, natural fibers have gained bursting attention than ever before from all the other research areas around the world. These natural fibers...

In an attempt to isolate high-quality, total RNA from flower buds of sunflowers (Helianthus annuus). We have already improved the SDS method. After adding liquid nitrogen, we have to grind the material down. After that we add protein -DNA precipitation, wash it with the addition of different kinds of...

Catalytic combustion is an important technique for utilization of fossil fuels, and the research on catalytic combustion mechanism could provide theoretical basis for the selection of catalyzer.In this paper, we adopt the Ni catalyst to promote the oxidation combustion reaction, and carry out study on...

Natural preservative and biological corrosion has become a modern food science and biological sciences frontier and hot, with a screening of natural resources has become a new trend antibacterial activity biotechnology, food research. Lactic acid bacteria used in food and feed has a long history, it...

An important factor in civil engineering to promote social progress and economic development, civil engineering involves the use of many of the materials and equipment. In order to improve the stability and reliability of civil engineering, science needs to use the material. Composite material is a material...

In the actual construction process, civil engineering will have plenty of material to use different materials bear different tasks. With the construction of civil engineering technology to improve and progress, all kinds of new materials continue to be applied to civil engineering construction and the...

Loess deposition age sequence during the Holocene in the region is established by the description of rock character of loess-paleosol stratum the partition and contrast of stratum of section in Xi'an ShaoLinyuan. According to the character of the curve expressed by substitution indication of climate...

The temperature of the evaporator is lower than the air dew point temperature when the air conditioning is running in summer. The vapor in the air condenses into a large amount of water on the surface of the evaporation pan. Conventional processing methods of condensed water now are directly discharged...

Nowadays, saving water and saving energy saving has become a trend of lifestyle. Therefore, it is quite necessary and practical to find an optimal injection method to save heat and water, which can be widely used in many various situations, such 0000as having a bubble bath, keeping tropical fish and...

Objective: To make a study of the separation and purification of purified corosolic acid from loquat leaf extract using the traditional Chinese medicine technology and the separation process in different samples of human gastric carcinoma BGC823 cell growth inhibition. Methods: 95% ethanol extracts were...

Purpose of this paper is to explore Herba Sarcandrae anti-tumor effect and related mechanisms. Methods Now Chinese Journal Full-text Database (CNKI), Chinese Biomedical Literature Database (CBM), Wanfang database and VIP database aggregated from 1994 to the relevant literature and 2009, and summarized...

An overview of several different extracts of traditional Chinese medicine and the impact of animal hair follicle belong to different species, thereby regulating mechanism of traditional Chinese medicine and its extract clear hair follicle development.

The construction must seriously study material standards, and have knowledge of building materials, and fully understand the scope and use of properties of the coating was not to be careless with the wrong paint, applied over the interior facade. After the sun and rain, appeared in a short unexpected...

The methanol extract of Schisandra chinensis is evaluated for their antimicrobial activity and mechanism on four common gastrointestinal bacteria. The antimicrobial activity is tested through inhibition zone, MIC and MBC. The antibacterial mechanism is studied based on the growth curve and cell membrane...

The formation of secondary organic aerosol products from photo-oxidation of 1,3-butadiene and ozone was investigated in static smog chamber. The effects of ozone concentration and relative humidity on the particle formation were studied. Research suggests that with the increase of ozone concentration...

The air samples in two different stages (high temperature sterilization stage and fermentation stage) of penicillin fermentation workshop were sampled in fermentation process to investigate the pollution level of VOCs in fermentation exhaust. Results showed that the staggered variation of VOCs in penicillin...

In order to describe the mechanical property of polyurethane elastomer (PU elastomer) under quasi-static compression, we have adopted universal tester of South JingKe electronics to proceed with equivalent static compression for polyurethane elastomer material, and studied the mechanical behavior of...

Taking into considering of the difficulties and urgency in the treatment of geological hazards such as slope collapse, in light of the deficiencies in previous treatment methods, and also in view that the high polymer material, which has been widely used in geotechnical engineering, possesses the merits...

The utilization of water treatment plant for waste of calcium-containing sludge was analyzed, and as a desulfurization agent, desulfurization experiment was studied professionally. The analysis of causes of the foaming phenomenon simultaneous in desulfurization tower was also taken into account,proposing...

The spread of virus is based on some mathematical models. An epidemic model SEIHCR was build up to take the special features of Ebola into consideration. These are treatments from hospital, infectious corpses and intensified contact tracing. This model is developed from the traditional SEIR model. The...

The amidoxime mesoporous silica (AO-SBA-15) was prepared and its effects of time, temperature and initial concentration on the adsorption of the aqueous zinc ion were studied. The results indicate that the adsorption performance of zinc ion was good. When the equilibrium concentration was less than 2...

ZrB2, YAG and Al2O3 are widely applied because of some excellent performances, but ZrB2 is easily oxidized in the high-temperature air. To keep advantages and improve disadvantages of ZrB2, the shell-core structure A12O3-Y2O3/ZrB2 composite powders are prepared by the co-precipitation methods, the high...

In the paper, ten sites is selected to investigate in Zhanjiang roof greening. Results show that the roof of Zhanjiang is given priority to with simple roof greening. Commonly used there are 75 plant species belong to 46 families and 72 genera. Bougainvillea spectabilis Willd., Hibiscus rosa-sinensis...

The characterization of two categories by plant residue and animal waste derived biochars obtained at 600 øC heating treatment temperatures (HTTs) were described. Plant biomass and animal waste biochars exhibit large physicochemical heterogeneity due to variations in biomass chemistry and combustion...

A patterned silicon nitride (SiNx:H) passivation layer was employed to improve the performance of silicon/poly(3,4-ethylenedioxythiophene):poly(stylenesulfonate) (Si/PEDOT:PSS) hybrid solar cells, achieving of an enhancement in the power conversion efficiency (PCE) of 0.6%. The insertion of patterned...

Limestone Wet flue gas desulfurization(WFGD) technology with high efficiency is being applied most widely for control technology of SO2 all over the word. It is widely used in coal-fired power plants, which will produce wastewater containing high salt and heavy metals. Currently, the desulfurization...

By using Gaussian software to make input file of water molecules , then in the Linux environment, the parallel CPMD was applied to simulate the nature of the hydrogen bond in aqueous solution through trajectory computation of input file . Then extract the track fragments selectively which meets hydrogen...

In this paper, the influence factors of separation of waste lubricating oil by molecular distillation were studied,and the optimal conditions were determined. The preheating temperature, system pressure, distillation temperature and feeding rate had main influence on yield and viscosity index of lube...

This paper takes Sanzhao Depression in Songliao Basin as the research target. Fuyu oil layer is in the 4th member of Quantou formation, Lower Cretaceous. The target layer in research area is mainly a set of shallow-water delta deposition, experienced the sedimentary evolution process from Delta plain...

In this work, we investigated the effects of GO on dispersion stability of the two types of TiO2 NPs under different pHs. At pH 4, heteroaggregation may occur between GO and the two types of TiO2 NPs (TiO2 Nanotube and TiO2 Nanowire), enhancing the sedimentation of TiO2 NPs. However, at pH 7 and 10,...

This paper taking sugar cane, pear tree and soybean plots as an example, using software SSS to fit soil shrinkage curve, studies the effect of moisture content in the field on soil shrinkage. The results show that the model parameters of SSS software could fit the measured data well(r>0.95) with relatively...

Boron nitride nanotubes (BNNTs) is a kind of material which have similar structure with carbon nanotubes (CNTs), but have more excellent performance, through experiments and research, scientists have a more thorough understanding of the preparation methods and properties of BNNTs, at the same time, they...

Persistent Organic Pollutants (POPs) are huge groups of chemicals that are associated with a variety of human health problems. They have a long residual, bioaccumulation, semi-volatile and high toxicity and they can migrate through various environmental media (air, water, soil, organisms, etc.) over...

In recent years, the demand for coke increased greatly in the modern industry, while the number of coal which is suitable for coking fell sharply and the quality was declining. Based on this background, the coal coking industry had to start the new energy more efficient and energy saving. We all know...

The anode material Fe2O3/C composite is prepared by a solid phase method. The as-obtained Fe2O3/C composite was investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical measurements. XRD results indicate the presence of hematite. SEM observations shows...

Monodisperse, spherical, organo-functionalized silica particles were prepared by a one-pot method. Vinyl-silica and amine-silica were prepared by the hydrolysis of tetraethyl orthosilicate in aqueous alcohol solutions with the addition of vinyl triethoxysilane and 3-aminepropyl triethoxysilane, respectively,...

Mn-Fe binary oxide adsorbents are prepared by co-precipitation method for removal of arsenic from contaminated drinking water. Arsenic adsorption ability is influenced by pH of reaction solution and Mn/Fe mole ratio. Adsorbent M/F4/6-12 with amorphous phase shows higher arsenic removal of 99.9 %. The...

The application of carbon nanotubes (CNTs) in biomaterials field was limited by its poor dispersion in water solution. In this paper, a specific methodology based on potassium permanganate (KMnO4)/concentrated sulfuric acid (H2SO4) hydrothermal oxidation was used to modify the surface of multi-walled...

As a new type of green material with excellent physical and chemical properties and mechanical properties. Basalt fiber are widely used in the field of civil construction. The present status of the research and engineering applications of basalt fiber in concrete were summarized.The advantage of application...

Through sorting and statistics of relevant test results on machining of high-strength materials at home and abroad, the tool materials and the distribution characteristics of tools' optimal geometric parameters as well as the possible causes are analyzed. The statistical results can be not only used...

The study is to design a biomarker based on hydrophilic quantum dots(QDs) can be bound to the P53 protein for diagnoses of breast cancer (BC).To achieve the purpose, we uses the water-soluble quantum (QDs) AgInS2/ZnS connected with P53 monoclonal antibody to design a novel kind of biomarker as a new...

Based on CIE1976 L*a*b* uniform color space, 54 peridot samples' color were measured under D65 light source. The component analysis results showed that all samples are forsterite and chrysolite. It showed that with the increase of Fe2+, peridot's color turns to yellow. But Fe2+ has no significantly correlation...

PCDD/Fs and mercury are contaminants with high toxicity and heavy harm in power plants especially in waste incineration plants, and they could produce polychlorinated and mercury chloride based Dioxins under the environment of high temperature and high pressure. PeCDD, which replaces the positions of...

To avoid the long time of dialysis process, a novel Strategy that Bovine serum albumin (BSA) was immobilized on Au-MNPs at first and afterward the CAP molecules were immobilized on the BSA in sequence has been applied to Chloramphenicol (CAP) detection with chemiluminescent immunoassays (CLIA) based...

In this study, we report on the electrical and optoelectronic properties of field effect transistors based on multilayer MoSe2. The multilayer MoSe2 device showed a room-temperature mobility of 27.3 cm2 V 1 s 1 and possessed a high gate modulation larger than 105. We obtained an ultrahigh photoresponsivity...

In order to control pesticide pollution in water environment, ozone-fly ash combined process was studied in laboratory. Dicamba(3,6-Dichloro-2-methoxybenzoic acid) was selected as model pollutant. The reaction temperature was changed to study the degradation efficiency. The experimental results show...

Decamba degradation using ozone-fly ash combined process has been studied in laboratory. The effect of pH value on dicamba degradation was investigated. Kinetic analysis was carried out. The experimental results show that pH value has a significant influence on dicamba degaration. The increase of pH...

The paper selects 100 mesh steel slag as the adsorbent, to study the effect of temperature, adsorption time, pH value of the solution and steel slag dosage on the removal rate of Cr3+ .The results show that for 50 ml ,100mg/l Cr3+ simulated wastewater, the best adsorption condition of steel slag is that...

Taking the steel slag as the adsorbent, the paper studied the treatment of zinc in the simulated wastewater. Results show that steel slag has good adsorption removal effect on Zn2+ solution. For 50ml ,100 mg /l Zn2+solution, under the condition of room temperature, when adding 1.0g 100 mesh steel slag,...

Objective: In order to synthesize the gold nanoparticles with high sphericility, good monodispersity and uniform sizes, a method of synthesizing by integrated modular microfluidic reactor based on piezoelectric actuation is proposed. Method: First, the entrance angle and channel section of the micromixing...

Polymer nanotube (PNT) is a polymer nanomaterial with tubular structure. In this study, we have developed a simple technique for the fabrication of polymer nanotubes by using self-assembled metal organic nanotube (MONT) as a sacrificial template and dendritic amine and acid as precursor molecules. MONT...

The calculated lattice parameters and enthalpies of formation of A12Ca, Al2Sr,A14Ca, Al4Sr,Mg2Ca,and Mg2Sr phase in Mg-Al-Ca-Sr alloy system were compared with both calculation results and experimental data published in references available, and the structural stability of these intermetallic compounds...

Cu2O/ TiO2 composite photocatalyst was prepared by precipitation method using Titany l sulfate, cupric nitrate and ethylenediamine as raw materials. The photocatalytic performance of photocatalyst was investigated by degradation of Methylene blue solution.The results showed that composite photocatalyst...

Basing on the heat transfer theory, the process of Q235 I-beam steel which is chosen to be studied could be done after rolling cooling control analysis. Given the practical manufacturing conditions, the finite element theory and its temperature field can be built to control the cooling process of I-beam...

A new cationic type asphalt emulsifier of 2-diethylenetriamine methylene-4-nonylphenol was synthesized by the reaction of nonyl phenol, diethylenetriamine and formaldehyde. The synthesis process was detected by online FTIR technique and the intermediate was found. Based upon the experimental information,...

In order to improve the toughness, thermal property and impact resistance of PLA, clay modified with different surface treatment agents (titanium ester, silane coupling agent and alkylamine) was added to PLA matrix. The samples were examined by fourier transform infrared (FT-IR) spectroscopy, micropolariscopy...

For obtain enamel-like hydroxyapatite, we are trying to induce the growth of crystal with modified chitosan which can simulate the organic template like extracellular matrix--Amelogenin to induce the deposition of miner ions. Phosphorous acid modification was applying into natural polycation polysaccharide...

In this study, aioxidant and anticancer activities of the extracts were evaluated from various habitats of Selaginella doederleinii. The evaluation on antioxidative capacity revealed that the extracts were the highest from Guizhou province using DPPH radical scavenging, ABTS radical scavenging, ferric...

There are over 2 trillion barrels of conventional oil still remain reservoirs worldwide after conventional recovery methods have been exhausted. Based on these many techniques that involved in tertiary oil recovery were developed. However, most of these technologies restrict the further development of...

In order to explore the dew condensation phenomenon, the experiment was settled. Getting use of poplar stick during the growing period of 2015(from the end of the Apr. to the middle of the Nov.) in suburb of Changchun City as ground monitors. Through using software of SPSS 19.0 to analyze the data. The...

An orientation distribution function is applied to describe the orientation distribution of polymer-fibers composites in shear-ellipsoidal extensional flow. And a mathematical model is established to simulate orientation distribution in this flow. Furthermore, the analytical solutions of differential...

Based on investigation data on Pb in surface waters in Jiaozhou Bay during 1979 to 1983, this paper analyzed the annual change of both contents and pollution levels of Pb. Results showed that Pb contents in surface waters in Jiaozhou Bay in 1979, 1980, 1981, 1982 and 1983 were 0.25-1.52 g L-1, 0.07-2.71...

This paper analyzed the content, distribution, source and background level of Cu in Jiaozhou Bay and the open sea based on investigation data in 1985. Results showed that the Cu contents in surface waters ranged from 0.10-0.43 " "g L-1, and were meeting Grade I in Chinese Sea Water Quality Standard,...

This paper analyzed the contents, pollution levels and their seasonal variations of Pb in the early stage of the reform and opening-up in Jiaozhou Bay, China. Results showed that Pb contents in surface waters in spring, summer and autumn in 1979 were 0.37-0.99 " "g L-1, 0.25-1.52 " "g L-1 and 0.29-0.75...