The surface of diatomite particles was treated by a silane coupling agent, and the diatomite filled polypropylene (PP) composites with a volume fraction range of the filler from 0 to 15% were prepared by means of melt blending in a twin-screw extruder. The impact strength of the composites was measured...

The core-shell structure precursor powder was fabricated by coat-mix process in different fabrication conditions with various aging pH value. The porous silicon carbide ceramics were prepared through molding, carbonization, and sintering in argon atmosphere and vacuum, respectively. Morphology, physical...

as the integration of the world economy, the amount of global trade has increased. 80% of the trade commodities are transported by sea. A large number of ships whose ballast water cause great damage to the marine environment are sailing in the ocean every year. Ship’s ballast water has become an important...

Based on analyzing the characteristics of the environment of low concentration uranium, the traditional processing method of low concentration uranium waste-water, such as adsorption method, chemical precipitation, evaporation-enrichment method were summarized. Then the principle, characteristics and...

The acid waste water produced in the process of mine exploitation has greatly increased the migration and transformation of heavy metals, through the waste water and rainwater flow to the soil, did great harm to the use of the soil. Farmland soil around the mine area was studied in this paper, by using...

The article briefly introduces the harm of the uranium and the existence form of uranium in aqueous solution. Reviewing the research advances in recent years of chemical treatment of wastewater with low concentration of uranium, the article analyzes the main principle and advantages and disadvantages...

With Shaanxi Ziziphus jujuba var. goutouzao as an experimental material, soxhlet extraction and ultrasonic extraction were adopted to extract flavonoids in Ziziphus jujuba var. goutouzao, and qualitative detection of flavonoids in extracting solution was scanned through color reaction and ultraviolet...

The Zinc Selenide nanoparticle has been successfully synthesized with oleinic acid as surfactant by hydrothermal methord. Using X-ray diffractometer (XRD)、scanning electron microscope (SEM)、transmission electron microscopy (TEM)、X-ray spectrometer (EDS)、ultraviolet-visible spectrophotometer and...

The aim of this meta-analysis was to evaluate the effect of dexmedetomidine on intraocular pressure (IOP) and hemodynamict. Methods: There were 12 randomized clinical trials in the meta-analysis. The Primary outcomes were the Weighted Mean Difference (WMD) and the 95% Confidence Intervals (CI) of changing...

Flexible rolling is a novel manufacturing technique for forming three-dimensional surface sheet metal parts. The working parts are two bendable rolls. The shape of each working roll can be adjustable respectively, and the gap of two rolls is controlled. The transverse curvature of the formed surface...

BC (Bacterial Cellulose) is fermented by the bacteria and other microbes from wood vinegar. This paper studies using the well dispersed bacterial cellulose fibers which is modified by polypropylene with plant fibers to make paper .According to the changes of the physical properties indicators of the...

Using silane coupling agent and ammonium zirconium carbonate to modify heavy calcium carbonate separately. Experiments show that using modified calcium carbonate as a filler made of significantly higher than filling in terms of the physical strength of paper. Under 40 ° SR condition, after 1% ammonium...

According to the problem that harmful by-products which are low molecular weight organic chlorides in the synthesis of PAE resin is inevitably, in order to reduce the content of organic chlorine, complex fatty acid ester was used as a modifier to compound new PAE (N-PAE) resin, as such, the active amount...

We analyzed the horizontal, vertical and seasonal variations of Cd in waters in the bay mouth of Jiaozhou Bay, eastern China in 1984. Results showed that, for seasonal variation Cd contents in waters were higher in autumn than in summer, which were determined by the equatorial Kuroshio flowing. For horizontal...

We analyzed the contents, horizontal distributions and pollution sources of Cu in Jiaozhou Bay, Shandong Province, China in 1984. Results showed that Cu contents in surface waters in July, August and October 1984 were 0.28-1.88 μg L-1, 1.60-4.00 μg L-1 and 0.11-2.00 μg L-1, respectively, and were...

This paper analyzed the content, horizontal distribution and migration process of Cd in bottom waters in Jiaozhou Bay based on the investigation of Cd in July and October 1984. Results showed that Cd contents in bottom waters in July and October were 0.05-0.18 μg L-1 and 0.05-0.06 μg L-1, respectively,...

According to analysis of cores, rock sections, casting sections, logging data of Ordovician carbonate reservoirs in the Yubei area,reservoir rock in the study area include 4 types:mud micrite limestone,grain limestone,biological limestone and dolomitic limestone.In combination with core photos and imaging...

To investigate the effect of co-combustion ratio (CCR) on the combustion characteristics in the LNG/diesel dual-fuel engine, an electronically controlled common rail diesel engine is modified into an LNG/diesel dual-fuel engine by adding a set of LNG supply system and dual-fuel control system. The in-cylinder...

A wireless blue light therapy capsule against Helicobacter Pylori infections based on a pH sensor was addressed. A pH measuring circuit module and wireless communication module were designed to pre-process and transmit the pH signal. By measuring the pH value changes, the capsule can identify the locations...

Soil erosion is a serious problem of worldwide concern. Rainfall intensity is an important factor affecting soil erosion and the resulting nutrients loss. Field experiments were conducted to investigate the effect of rainfall intensity (60, 100 and 140 mm/h) on runoff nutrients loss and sediment particles...

In the process of CO2 aerated, the variation of pH value, the characteristics of Carbonate precipitation and hydroxide precipitate by Zn, the adsorption and co-precipitation characteristics with the hydrated oxides of iron and aluminum and calcite have been researched. After CO2 was aerated to the high...

The carbon nanotube (CNT) composite material model containing interfaces was constructed in this paper. With the aid of the ABAQUS’s cohesive element and user-defined field (USDFLD) technologies, the damage beginning and evolution of the composite model under transverse load was simulated in the way...

In order to evaluate the effect of size and shape of crack defect on steel surface quality and mechanical properties, accurate measurement and characterization should be conducted. Aimed at the high measuring difficulty and low accuracy in the existing manual mode, a new series of characteristic parameters...

In consideration of the high tensile strength but low elongation properties of ultra-fine grain microalloyed steels prepared by deformation-induced phase transformation rolling technology, microstructural quantitative analysis was conducted. Results show that the volume ratio of acicular ferrites is...

The kinetics of ring-opening polymerization of L-lactide in a tubular static mixing reactor was investigated for the first time. The polymerization of L-lactide was initiated by stannous octoate/triphenylphosphine catalyst system at a temperature of 170 ºC - 190 ºC and molar ratio of monomer to initiator...

3-Morpholin-4-yl-1-(4-nitrophenyl)-5,6-dihydro-1H-pyridin-2-one (1) is an important intermediate for the synthesis of many biologically active compounds. It was synthesized from cyclopentanone oxime (7) and 1-fluoro-4-nitrobenzene through three steps including rearrangement Reaction, condensation and...

3-chloro-2-oxo-butyric acid ethyl ester 5 is an important intermediate in many biologically active compounds such as thiazole carboxylic acids. In this work, a rapid synthetic method for compound 5 was established. The compound 5 was synthesized from the commercially available diethyl oxalate through...

The pyrimidine compounds are a class of nitrogen-containing heterocyclic compounds. 5-(4-bromophenyl)-4, 6-dichloropyrimidine is an important intermediate in the synthesis of pyrimidines, dimethyl2-(4-bromophenyl) malonate and 5-(4-bromophenyl) pyrimidine-4,6-diol are important intermediates in compound...

4-Substituted isonitroacetanilines 2 were prepared by the reaction of 4-substituted anilines 3 with chloral hydrate and hydroxylamine hydrochloride. 5-Substituted indol-2,3-dione 1 were prepared by the cyclization of 2 in the presence of concentrated sulfuric acid. 5-Substituted indol-2,3-dione 1 is...

Tert-butyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate (1) is an important intermediate in many biologically active compounds such as crizotinib. In this work, compound (1) was synthesized through three steps, using tert-butyl-4-hydroxypiperdine-1-carboxylate...

This paper provides tensile testing and analysis at the hybrid fiber model composites mechanical process measuring. In this study, tensile tested of hybrid fiber composites was accomplished using a mechanical high-efficiency propeller technology. This research result suggests that the tensile testing...

Dephosphorization in the ladle is a new type of dephosphorization method. The water simulation experiment of semi-steel dephosphorization in 100t ladle of Chengde steel has been carried out.The best mixing time has been investigated for various process parameters of blowing oxygen lance and bottom blowing.It...

According to analysis of cores, rock sections, casting sections, logging data of Ordovician carbonate reservoirs in the Yubei area,reservoir rock in the study area include 4 types:mud micrite limestone,grain limestone,biological limestone and dolomitic limestone.In combination with core photos and imaging...

The effects of strain rate on the mechanical properties of the particulate-filled composite have been studied. Tests in uniaxial tensile condition were carried out over a range of tensile rates. Results show that the mechanical properties of the particulate-filled composite are distinctly influenced...

The machinability of Nickel-based superalloy GH4169 is poor, in order to improve machining efficiency, reduce costs, it is necessary to study the various factors that affect the tool wear. In this paper.The tool wear tests were carried out to investigate the effect of an externally applied voltage on...

ZN-35 silicone rubber is a kind of effective vibration damping material in aerospace, which can be made into a vibration damping pad for preventing vibration and damage to important components in the rocket. In this paper, the energy storage modulus and loss factor of ZN-35 silicone rubber materials...

This paper analyzed the content and distribution of Cadmium (Cd) in surface waters in Jiaozhou Bay in 1984. Results showed that Cd contents in the study area ranged from 0.06-0.20 μg L-1, and were meeting Grade I (1.00 μg L-1) in National Sea Water Quality Standard (GB 3097-1997), indicated that this...

Based on investigation data on petroleum hydrocarbon (PHC) in June, July, September and October 1980 in bottom waters in Jiaozhou Bay, we analyzed the content and distribution of PHC. Results showed that PHC contents in June, July, September and October 1980 in bottom waters were 0.028-0.147 mg L-1 and...

Based on investigation data on petroleum hydrocarbon (PHC) in April, August and November 1981 in bottom waters in Jiaozhou Bay, we analyzed the content and distribution of PHC. Results showed that PHC contents in April, August and November 1981 in bottom waters were 0.028-0.123 mg L-1 and were meeting...

Plant bioactive polysaccharides and the products of organisms are the hot focus of present research. They play various biological roles, one of the most vital of which is enhancing the immunity. Relationship between immune substances and disease has been confirmed through lots of studies. The immune...

Immunomodulatory peptides play an important role in immune response. Researchers acquired activity peptides from natural food protein by enzymatic hydrolysis and the most commonly used enzymes are Alcalase. In this paper, the mechanism of immunomodulation was summarized briefly. The peptides charge,...

The antioxidant capacity of peanut shell polyphenols interacted with pancreatic α-amylase is examined in vitro. The results indicated that peanut shells polyphenols could be used as a kind of potential natural antioxidant for food. The polyphenols easier binding to proteins made its scavenging activities...

This study developed a method to extract polyphenols from peanut shells by ultrahigh pressure (PPSUP). The yield of PPSUP was up to 71.3 mg of gallic acid equivalents (GAE) /g under optimizing extraction parameters of ultrahigh pressure to 75% ethanol, 300 MPa, 4 min, 1:25 ratio of material to liquid....

Cotton fabric was dyed with C.I. Reactive Black 5 with different dye mass, followed the treatments of soaping, dye fixing, and wet rubbing improving. The wash fastness, rubbing fastness, and colour uniformity of dyed cotton were inspected. The results show that the entire utilized textile auxiliaries...

Concrete as a most popular construction material has many advantages such as easiness to be formed into various shapes, common availability and relative low cost. However, the low strength in both tension and shear is limited for the wider application of the material. In this study, an advanced material...

Air-intake filter in the ventilation system of offshore platform, is normally composed of the inertial stage and the multi-layer gauze stage, which plays an important role in providing sufficient and clean air. Numerical simulation and experimental research were carried on to study the flow field and...

Cotton fabric was dyed by exhaust method with C.I. Reactive Blue 19 with various dye concentrations, followed by the treatments of soaping, dye fixing, and wet rubbing improving. The dye exhaustion, wash fastness, rubbing fastness, and colour difference of dyed cotton fabric were examined. The consequences...

Poly (vinyl alcohol) (PVA) and poly (vinyl pyrrolidone) (PVP) nanofibers prepared by bubble-electrospinning are studied experimentally. It shows that the relative humidity predominantly affect the morphology of the formed nanofibers. The nanofibers with high quality are essential for their applications...

The Ansys finite element software is used to calculate the crack opening displacement and Stress intensity factor (SIF) for Single-edged notched tension (SENT) specimen of Clam steel under the tension of 1000N. During the simulation, the crack opening positions for five groups and the different crack...

The land subsidence is a geological hazard which is a reduction of regional elevation resulted in the compact of soil, caused by the natural and human factors. This paper mainly expounds the influence of water level, soil conditions, and the upper building load on the land subsidence, and provides the...

Section loss and strength reduction of rebar, concrete section damage and adhesive performance degradation between rebar and concrete cased by corrosion of rebar are major factors for reduction column bearing capacity. It studies major reasons for failure of domestic reinforced concrete durability, analyzes...

In order to investigate the dual effect of initial vacancy concentration and annealing temperature on oxygen clusters′ evolution in RTP-treated silicon wafer during low temperature annealing, an established phase-field model and the optimum design method based on response surface was used to simulated...

With the surging emissions standards for cars and strict and the application of advanced emission control technology, the influence of fuel quality on vehicle emissions is increasingly important. As a result, automobile, petrochemical industry in the United States, Japan, Europe and other countries and...