The energy of a proton exchange membrane fuel cell (PEMFC) as a pollution-free and efficient conversion device has broad application prospects in the new energy vehicles and other aspects. Improving PEMFC operating temperature is the main research directions. Proton exchange membrane, one of the key...

In recent years the molecular biology technology had achieved some development in national related areas; the environmental microbiology research offered some support to the molecular biology technologies. Since the environmental microbiology researchers achieved better improvement in prevention and...

Objective: to study the influence of electric acupuncture on factors about cerebral nerve cell apoptosis: B-cell lymphocytic lymphoma-xl gene (Bcl-xl) and aspartic acid proteolytic enzyme-3 including cysteine (Caspase-3) after cerebral ischemia of rats, and discuss the possible mechanism of treating...

Thermal analysis method can be used to determine the solid state nuclear track of some heavy particle retention in the sample, calculate the annealing process of unit mass of the release of the heat, and in this way to measure the specific number of samples per unit mass of solid state nuclear track....

In the recombinant strain Corynebacterium glutamicum ATCC14067-T18-argB, the key kinase (N-acetylglutamate kinase) was expressed with the PEC-T18mob2 plasmid. The ability of producing L-arginine was increased. Aimed at improving the production of L-arginine further, several factors include soya peptone,...

Objective To investigate the serum LPL swimming fat diet rats, HL, ApoC content and its effect on body weight, lipid metabolism regulation mechanism analysis of movement disorders, to provide a theoretical basis for the prevention and treatment of hyperlipidemia and its complications. Methods 30 SD male...

Purpose: Inquiry is not the same effect on the long aerobic exercise on bone mineral density in elderly patients with osteoporosis. Methods January 2013-January 2014 in our hospital 120 cases of senile osteoporosis patients in this study, according to the motion duration were divided into control group...

Based on 72 SD male rats were intermittent hypoxia training, observe its quiet state three hours after, immediately after exercise, and exercise changes the activity of SDH in skeletal muscle. Found that in the condition of the three, the rat skeletal muscle SDH has obvious changes, and presents the...

Objective to explore the effect of incremental cycle ergometer exercise on bone mineral density in patients with osteoporosis. Methods 60 cases with osteoporosis in 2013 January-2014 year in January in our hospital as the research object, according to the different treatment as control group and observation...

Objective To study the paper acute incremental load movement before and after the red cell immune function and the change of T lymphocytes and their subsets. Selection methods in January 2014-May 2014 in our hospital outpatient treatment of 122 cases of patients as the research object, the elbow vein...

Objective to study the preventive effect of hormone replacement combined with exercise on osteoporosis of postmenopausal women. Methods 70 postmenopausal osteoporosis patients in our hospital obstetrics and Gynecology treated according to different therapeutic methods were divided into treatment group...

Based on the single-factor experiments of galangin extraction from the galangal,the experimental variables,the ethanol concentration(X1),extraction temperature(X2),extraction time(X3),and ratio of thanol to raw materia(X4) were estimated and optimized by the response surface methodology (RSM) .The statistical...

Suboptimal pharmacokinetic properties, such as poor water solubility, limited stability, and severe side effects, still limited the therapeutic efficacy of drug for cancer chemotherapy, but there has been many strategies to improve these properties. In this paper, we combined several methods in a single...

To enrich the basic theory of the reductive decomposition process of PG(phosphogypsum), emphasis was laid on the exploration of the impact of the main impurities on the process. Firstly, the simulation computation was done on the systems of pure gypsum mixed with coal with or without impurities under...

Roof greening has a series of advantages to improve the urban ecological environment. The roof greening plants resistance to the environment research is one of the scholars research priorities. In the text, the research progress in the studies of roof greening plant resistance are analyzed. Found that...

In order to develop environmental self-adaptation electromagnetic protection materials, VO2 thin films with different thickness have been prepared on high-purity single-crystal Si substrates by Sol-Gel method. A phase transition testing system was manufactured based on static high voltage source and...

Solid waste is harmful to human waste, but also for the development and utilization of secondary resources. This paper outlines the industrialization path of various solid waste and solid waste recovery using industry has great advantages in resources, solid waste resource technology were discussed....

In the present work, a novel heterostructured dye-sensitized solar cell (DSSC) was fabricated by using simple spin-coating steps. g-C3N4 and Ag modified TiO2 microspheres were used as the photoanode materials. The aim of this study was to modify TiO2 microspheres by using g-C3N4 so as to retard the recombination...

Floor drain is mainly used in bathroom and kitchen, play the role of drainage. However, after deodorant floor drain device failure, it becomes a floor drain vent, sewer smell manure elements, carbon monoxide, methane, hydrogen sulfide and other poisonous gases emitted into the interior space of the human...

The emulsifying characteristics research of the produced liquid in weak base alkaline-surfactant-polymer lay the theoretical foundation for the process ofoil-water separation and the choice of operating parameters, this paper mainly researchs the degree of emulsification of produced fluid, the properties...

The world medical association has developed new medication to stop Ebola and cure patients whose disease is not advanced. In order to offer an optimal plan to optimize the eradication of Ebola, we establish a mathematic model based on the spread of Ebola virus disease. The first model is based on Susceptibility...

This paper conducts the research on the novel phosphorus flame retardant epoxy resin model and that the corresponding flame retardant performance. Research will be introduced to the phosphorous epoxy resin curing agent of the structure, synthesis of phosphorus curing agent, curing agent with flame retardant...

The effect of DL-Methionine (DM) on the electroless silver deposition was investigated. The deposition rate of electroless silver deposition was inhibited by an addition of DM. The effects of DM on the polarization curves were studied by LSV. Not only the anodic oxidation reaction but also cathodic reduction...

With deep-processing material of surface resources as soil substrate, the experiment of soil spray sowing was carried out on expressway slope. The results show that taking surface soil of fine particles and compost product of surface organic plant residue as the main soil substrate for slope soil spray-sowing...

This paper introduces the film material in micro manufacturing in general, it is covered in a wafer. Then, it focuses on the production process of the thin film, mainly has the PVD method, which is formed by the physical method; the other is VCD, that is the chemical method to produce the film. Finally,...

Poly (ether ether ketone) was pretreated by wet chemistry and different surface morphology was obtained. In swelling treatment, with the increase of sulfuric acid concentration, the holes on surface changed from isolated structure to interpenetrated structure, the number and density of the holes increased,...

This paper established a multi-residue detection method of amides, neonicotinoids, triazoles, heterocyclic, and other pesticides in fruits and vegetables samples by liquid chromatography - tandem mass spectrometry. Using QuEChERS as sample pretreatment method, then extracted by acetonitrile, cleaned...

Dye sensitizer is an important factor to the performance of dye sensitized solar cell (DSSC). This article simply reviews the development of dye-sensitized solar cells and the disadvantages of it at present, analyzes the advantages and disadvantages and its potential development of the natural dyes as...

The lattice parameter, elastic modulus, elastic constants and electronic structure of TixZr1-xN(x=0, 0.25, 0.5, 0.75, 1) were studied with first-principle pseudopotential plane-waves method. The lattice parameters of TixZr1-xN increase with Zr atoms increasing. Bulk modulus B, shear modulus G and Young's...

A novel unsymmetrical isomeric photochromic dithienylethene, 1-(2-methyl-5-phenyl-3-thienyl)-2-{[2-methyl-5-(3-1,3-dioxolane-4-methoxyl)phenyl]-3-thienyl]}perfluorocyclopentene (1o), was designed and synthesized. The photochromic and fluorescent properties of 1o were also studied. It is demonstrated...

A novel photochromic diarylethene which called 1,2-bis-[2-methyl-5-(9,9-diethyl-5H-fluorene)-3-thienyl]perfluorocyclopentene was designed and constructed successfully. In the meantime, its photochromism and fluorescent properties have been discussed systematically. This compound exhibited excellent photochromism,...

We have demonstrated that self-assembled nanofibers can convert into a chiral state influnenced by external stimuli. This helicity convertion of the nonchiral assembly realizes in a reversible way on heating. Notably, this reversible nonchiral-chiral switching is accompanied by a transition between extended...

A new symmetrical photochromic diarylethene 1,2-bis(2-menthyl-5-(trimethylsilylacetylene)-3-thienyl)perfluorocyclopentene (1o) based on a dithiophene structure has been constructred, and the photochromic and fluorescent properties of 1 were investigated. The results indicated diarylethene 1o showed good...

Based on extensive usage of the smoke exhaust ventilator, this paper develops a processing technology of VOCs (volatile organic compound) by photo-catalytic-oxidation technology. This method couples with the existing the smoke exhaust ventilator technology to control the cooking fume emission ---VOCs.

From the point of view of sustainable development, wastewater zero discharge is undoubtedly one of the best measures. Saline wastewater reuse domestic power plant desulfurization system research is very few. This paper analyzes the effects of high concentration of SO32- on wet flue gas desulfurization...

Bending test of rubber asphalt mixture was studied, This paper selected 5 groups with different aggregate gradation, to figure out rubber asphalt mix properties at low temperature. A comprehensive indicator was considered by comparing the test results, included flexural tensile strength, failure strain,...

In many regions, such as Tibet, Qinghai etc, because of its unique climate conditions, continual appear all kinds of road diseases, such as cracks, subsidence and damages. Mainly due to the traditional maintenance ways on semi-rigid base material in these regions are not very well. So based on the characteristics...

The objective of this study is to investigate the effect of combined container roof garden on the microclimate, the wall temperature and the indoor temperature of the building. This study has shown that the combined container roof garden can effectively improve the roof microclimate, reduce the highest...

Through the analysis of current development and utilization of iron ore tailings resources in China, we can summarize the present development and utilization pattern of iron ore tailings resources. According to the theory of sustainable development, people can put forward three connotations of iron ore...

NaOH and Na2B4O7 -10H2O solutions of texturization were investigated and a series of comparative experiments were made by our group. The surface microstructures studied with a scanning electronic microscope (SEM). The different etching time and the different concentration of the solution have a larger...

With the development of the times, the demand for dairy becomes more and more heavily all over the world. Meanwhile, the dairy wastewater is doing more and more harm to the environment. Now the SBR(Sequencing Batch Reactor) process has been widely used in dairy wastewater treatment. The SBR process is...

The bean products wastewater treatment process has been studied by SBR. Theexperimentstudied effective of reaction timeunder low dissolved oxygen on SBR system. The experimental result indicated that under the condition of influent COD is 330~460mg/L, the reactor has a good degeneration ability of COD,...

In this study, soy sauce wastewater was treated with SBR process. The effects of culture time, pH and aeration time on the removal of COD were investigated. The SBR process is a biological treatment method with simple structure and nimble operation. In this paper in order to study the removal effect...

Effect of observation Fusen herbal tea in normal mice methods.: given to mice for 17 days, daily 2 times respectively in drinking high dose Fusen herbal tea, small dose Fusen herbal tea, Wanglaoji large dose of herbal tea, small dose of Wanglaoji herbal tea, herbal tea replace normal mice drinking water;...

A 3D meso-mechanical model is introduced herein to estimate the elastic properties of concrete materials on the basis of the assumption that concrete can be considered as a three-phase material which contains cement mortar, aggregates and interfacial transition zone (ITZ). The influences of aggregate...

Complex of cell-THPC-thiourea-ADP with lanthanide metal ions Dy3+ has been prepared. The thermal stability and smoke suspension of the samples are determined by TG, DTA and cone calorimetry. Experimental data show that for the complexes of cell-THPC-thiourea-ADP with the metal ions, thermal decomposition...

This paper is to present our research results of the efficacy of SW303 in term of inhibiting bacteria growth in concentrated seawater and under the process conditions of seawater recirculating cooling system through the rotating specimen test and the dynamic simulation experiments. For our research purpose,...

A new high efficiency organic inhibitor (HEOI) was synthesized, which was applied to coal to inhibit the spontaneous combustion. Meanwhile, MgCl2 was used to compare the inhibition properties with HEOI, studied by cone calorimeter. It was found that the combustion parameters of coal samples, including...

As the biggest natural freshwater lake in Jinjiang, Longhu Lake now serves the drinking water source for four towns in South Shanxi Province and Jinmen. The paper evaluates the state of nutrition of Longhu Lake on the basis of analyzing the status quo of Longhu Lake, and proposes seven measures to prevent...

This paper analyzed the content, distribution, seasonal and vertical variations of Pb in Jiaozhou Bay based on investigation data in surface and bottom waters in different seasons in 1982 and 1983. Results showed the seasonal variations of Pb contents in surface and bottom waters were consist in generally....

This paper analyzed the seasonal variations and land-ocean transfer process of Pb in Jiaozhou Bay based on investigation data in surface waters in different seasons during 1979-1983. Results showed that during 1979-1983, both stream flow and marine current were the major Pb sources in Jiaozhou Bay. However,...

This paper analyzed the content, distribution, source and background level of PHC in Jiaozhou Bay based on investigation data in April, July and October 1986. Results showed that the PHC contents in surface waters ranged from 0.005-0.122 mg L-1, and were meeting Grade I/II (0.05 mg L-1) and Grade III...

"Cellular immune system" concept first proposed in 1981 by the American scholar Siegel. 20 years of domestic and foreign scholars have done a lot of research and found that there are many cells and immune-related substances, and have recognition, adhesion, concentrated, anti-antigen, the antigen transfer...

The main topic of reincarnation colors and different materials used in the performance of ceramic appearance, were ceramic color performance with a special technique, combining ancient beauty and modern beauty, this study as a starting point.