Zinc nitrate hexahydrate, ethylene glycol, thiourea and triethanolamine were purchased to be starting materials. Nano zinc sulfide solution has been successfully prepared by Chemical bath deposition method, and then the prepared zinc sulfide modified polyhydroxybutyrate valerate (PHBV) to form the thin...

Climate change and its adverse effects caused a large number of migrants, had been become the 21st century challenges for human society. Under climate changing, human has implemented macro and micro climate engineering in response to deteriorating natural living conditions, and a number of growth-promoting...

In the overall context of global climate change, global warming, melting glaciers further have increased the probability of occurrence such as a gradient with a slow onset of climate risk and drought, floods and other extreme mutation catastrophic climate risk, These adverse effects has brought about...

In multi-component spectral analysis, informative variables selection is important to get satisfied performance. The present research intends to establish relationship between eggs freshness and NIR spectroscopy, and build a compact and robust calibration model. Graphically-oriented local multivariate...

Objective: this study examined the effects of flavonoids from Eucommia ulmoides (FEU) on antioxidant systems, lipid peroxidation and oxidative deoxyribonucleic acid (DNA) damage after exhaustive exercise. Methods: the mice were then divided into four groups, one control group and three FEU treated groups....

Microemulsions have great applications in food products. However, due to the complex attributes of microemulsions, it requires various techniques to synthesize and characterize microemulsions. This includes studies of the phase behavior?size of the microemulsion droplets. This paper reviews different...

This research based on fresh coconut and the coconut puree was conducted with the ultra-high pressure (500MPa/ 10min). Two strains of pressure-resistant bacteria in coconut puree were screened out and identified as Leuconstoc mesenteroides subsp mesenteroides and Leuconstoc mesenteroides subsp dextranicum...

During the past several years, the explosion risk analysis of each stage in oxygen CBM liquefaction process has been carried out by a large number of domestic scholars. In this work, firstly, safety evaluation of the coalbed methane liquefied process was summarized. Then, the experiment of the explosion...

Three kinds of salen catalysts, mono-chloromethyl-salen-Mn, tetra-tert-butyl-salen-Mn and mono-chloromethyl-slaen-Co, were synthesized and then immobilized onto ceramic membranes by two steps. First, 3-aminopropyltriethoxysilane (APTES) was grafted on ceramic membranes in order to introduce amino groups...

In the present work, we propose a normalised real-time quantitative PCR assay to determine the sheep content in raw meat. For the development of the method, the mixtures meats contain known amounts of sheep meat in pork from 20% to 100% can be successfully in-house validated by a normalised calibration...

The concentrations of NH4+-N, NO2--N and NO3--N were measured in batch experiments to study nitrification kinetics in IFAS system with different FR at 0%-50%. The results showed that both of NH4+-N oxidation rate ( ) and NO3--N production rate ( ) increased with FR, which respectively increased from...

The application of ultraviolet absorption detector (UV) and circular dichroism (CD) detectors in series in HPLC systems has been increased in recent years. In this work, an effective method to determine the enantiomer concentration on line in chiral drugs was explored. Ibuprofen (IBP) racemate was applied....

There are huge demands for antibacterial metallic materials in protecting human health from bacteria propagation and bacteria spreading, and in preventing industrial equipments from microbial corrosion. In this paper, some common inorganic antibacterial agents such as Ag+, Cu2+, Zn2+ and Ce2+ were introduced;...

Based on constraint phononic crystal cutoff frequency characteristics, the paper studied effects on the phonon crystal band structure of the two-dimensional phononic crystal substrate density and elastic modulus under constraints. The spring quality equivalent model is proposed for the theoretical interpretation,...

The endophytic N-fixing microbes Klebsiella oxytoca NHglj1, Klebsiella oxytoca NHglj2 and Enterobacter asburiae LMw107 of Nitraria were selected to explore the effect of Nitraria schoberi L. plant sap on salt and alkali resistance of its 3 endogenous N-fixing microbes strains in the Winogradsky's N-free...

The microwave pyrolysis of the low-rank coal is a new technology, which solves the utilization problems of coal cleaning conversion. On basis of experiments, this paper conducted comparative study on microwave co-pyrolysis products of low-rank coal under H2 and N2 atmosphere, respectively. The composition...

In order to explore the blending mechanism of bio-binder and petroleum asphalt, this paper used high shear equipment to mix them, with varying conditions of temperature (130 ~ 145°C, 145 ~ 160°C, 160 ~ 175°C, 175 ~ 190°C), speed (500r, 1000r, 2000r, 3000r) and mixing time (15min, 30min, 45min, 60min)....

Objective: the aim of the present study was to determine the effects of ginsenosides-Rb1 (GRb1) on immune function of rats during strenuous physical exercise. Methods: The rats were randomly divided into four groups: one control group and three different doses of GRb1 (25, 50 and 100 mg/kg) treated groups....

In order to explore Rhizobium medium production using leaching liquor of green corn straw. Corn stalk powder extract solutions (CSE) are obtained and suitable carbon sources (glucose) were supplemented as liquid and solid Rhizobium medium. Compared with the yeast extract mannitol (YEM) medium, Rhizobium...

Pyrroloquinoline quinone (PQQ), an important natural product, is biosynthesized by Gluconobacter oxydans. In order to prepare the product in large scale, a rapid and selective chemical complexation extraction (CCE) is proposed to separate and purify PQQ from fermentation broth. In this work, the effect...

This paper introduces energetic igniters fabricated using TaN film bridge by magnetron sputtering. It is inferred from the image of wet-etched TaN film bridge that film edge is clearly visible and relatively smooth with lateral erosion size of 5 ?m. The X-ray diffraction (XRD) and Temperature Coefficient...

A Escherichia coli strain producing phytase named DH5α was chosen from four E. coli stains, the enzyme activity was 17.88 U/mL after fermented at 37°C for 2 days. The enzymatic properties of crude enzyme solution were studied. The optimal temperature was 55°C; optimal pH was 2.5 and 7.0, enzyme had certain...

[Purpose] To study the component change of urine crystallites with different sizes in the urines of calcium oxalate (CaOx) calculi patients and healthy controls with placement time. [Methods] A combination of high-resolution transmission electron microscopy (HRTEM), fast Fourier transformation (FFT),...

[Purpose] The formation of kidney stones related closely to the properties of urinary nanocrystallites. This study aimed to investigate the components of urinary crystallites in 56 cases of patients with magnesium ammonium phosphate (MAP) stones compared with the components of stones. [Methods] X-ray...

[Purpose] This study aimed to investigate the components of urinary crystallites in 275 cases of patients with calcium oxalate (CaOx) stones compared with the components of stones. [Methods] X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectrometer, selected area electron diffraction (SAED)...

1. Objective: Salvia miltiorrhiza is a traditional Chinese herb medicine and is widely used in clinic application. This study is intended to extract polysaccharides from Salvia miltiorrhiza by ultrasonic method in order to evaluate its antioxidation activity. 2. Methods: (1) Spectrophotometry is used...

Developing coatings on implant surface as drug carriers can reduce organ toxicity and effectively deliver drug locally to the target compared with the oral approach. Titanium dioxide (TiO2) nanotube has great potential for this application for widely used Ti implants because of its high surface area,...

Taking the effluent of secondary biological treatment in one pharmaceutical factory as the object of study, taking coagulation, ultrafiltration and reverse osmosis treatments as the core technologies of the water reuse pilot test, the application effects of treatment process were analyzed. The results...

The use of relatively expensive and nonrenewable precursors such as natural coal is the main reasons for the high cost of commercial activated carbons. Agricultural wastes are considered as promising precursors for low cost and high surface area activated carbons due to their high volatile matter and...

Based on the analysis of the potential ecological risk posed by the development of industrial cities along the Second Songhua River, according to the calculated ecological risk relative values and the development in different directions, the risk control measures aimed at different cities were put forward...

Objective: To establish a method for the extraction of polysaccharide from waste wine yeast slurry by composite enzymatic method. Methods: On the basis of single factor experiments, the effects of operating conditions, such as enzyme mixture ratio, enzyme added, composite enzymatic extraction pH, and...

During the period from January 2011 to May 2015, we analyzed and studied the contents of harmful substances (Hg, Pb, As, Cd, Cu, Zn, Cr, Petroleum hydrocarbons, Polychlorinated biphenyls, Fecal coliforms) which were collected from the body of 300 Ruditapes philippinarum at the Xiangshan Bay areas and...

Objective: Photosystem I (PS I ) is a large membrane supercomplex that consists of a reaction centre and light-harvesting complex (LHC I ). PS I catalyzes light-driven electron transport to produce reducing power NADPH, and then NADPH are used in the dark reactions of photosynthesis to fix CO2 and synthesize...

Objective: The major light-harvesting complex of photosystem II , Lhcbs, are assembled in its trimeric form, equipped with chlorophyll and xanthophylls, embedded in the thylakoid membrane of green plants, and play critical roles in harvesting light energy for photosynthesis. The objective of this work...

1. Objective: Jianghong yulu is a traditional seasoning produced through the salting and fermentation of fresh Harengula Zunasi Bleeker in Suixi, South of Guangdong in China. The manufacturing process is quite complex, including two stages, namely brining and spontaneous fermentation. In this work, the...

Nitric oxide (NO), as a signaling molecule in vivo, plays an important regulatory role in a variety of physiological and pathological conditions. Mesenchymal stem cells (MSCs) are pluripotent progenitors that can differentiate into a variety of cell types. Vascular endothelial growth factor (VEGF) induces...

In order to achieve an accurate expression and effective sharing about the hazards monitoring and managing knowledge between the upstream and downstream of the cold chain, the paper establish a HACCP ontology model of the cold chain on the basis of analyzing and summarizing general business processes...

Objective: To optimize the enzymatic digestion processing parameters of soybean and improve the antioxidant activity of soybean peptides. Methods: microwave-assisted enzymatic digestion (MAED) was applied to extract antioxidant peptides from soybean with maximized antioxidant activity by response surface...

Delftia acidovorans SPH-1 is a beta-Proteobacterium that degrades a number of organic compounds. Genomic islands play the important role in horizontal gene transfer. Two prophage-related genomic islands (GIs), SPHGIGly-CCC-1 and SPHGIGly-CCC-2, were determined and are integrated into 5’ and 3’ end of...

Tm3+-doped Li2O-SrO-ZnO-Bi2O3 (LSZB) glasses that are suitable for optical amplifier applications have been fabricated through the conventional melt-quenching method, and the spectroscopic properties of Tm3+ in the glasses were characterized. The density, the refractive indices, the optical absorption,...

A novel process, natural freezing, was developed to remove ammonia from wastewater in this study. A series of experiments were carried out to examine the ammonia removal and ice productivity in laboratory in Dalian, the effect of operating conditions such as solution concentration, pH, ice content formed,...

The Young leaves of green beans sprouts were used as experimental materials, total DNA was extracted by using methods including magnetic bead and traditional SDS methods. Integrality and purity of nucleic acids were detected with agarose gel electrophoresis, ultraviolet absorption and PCR.The results...

Objective: This study was conducted to evaluate the effects of different preparation methods on the quality of dietary fiber from bamboo shoot (BDF). Methods: Four methods including water-washing (WT), acid-base treatment (ABT), fermentation (FT) and enzyme treatment (ET) were carried out, and the composition,...