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This paper analyzed the content and distribution of Arsenic (As) in bottom waters in the bay mouth of Jiaozhou Bay in May, September and October 1983. Results showed As contents ranged from 0.15-2.30 g L-1 in bottom waters in the whole year, and were more lower than Class I for As (20.00 g L-1) in National...

Based on the investigation data on Cu contents in different seasons in 1983 in surface waters in Jiaozhou Bay, we analyzed the contents, pollution level and distributions of Cu. Results showed that Cu contents in May, September and October were 2.47-20.60 g L-1, 0.86-4.86 g L-1 and 0.77-3.00 g L-1, respectively....

Appraisal model of estate market comparison approach existed uncertain problem, so a new appraisal model integration of GIS and set pair analysis was built. Firstly, using the GIS spatial analysis method quantified the real estate price impact factors. Then, its weights were calculated by entropy weight...

Perovskite-type cube structure LaMnO3 nanofibers of approximately 50~100 nm in diameter were synthesized via Sol-Gel processing and electrospinning technology after calcined at 900 by using polyvinypyrrolidone (10 wt %PVP) as complexing agents. The nanofibers was characterized by means of scanning electron...

In this paper, based on complex network theory, a topology model was proposed which is more accord with the nature of wireless sensor network. Actually, each node's actual location is crucial, in addition, the node energy consumption and communication distances between nodes are inseparable, so we tried...

Through the analysis on the cases of the transmission line gallop over the years, the meteorological condition and the geographical location have a dramatic effect on the gallop phenomenon. And the conductor gallop can be evaluated by the thresholds of the weather factors and the degree of the terrain...

Osteopontin (OPN), as a malignant transformation related protein phosphorylation was firstly completed the extraction by Senger in 1979. With the progress of research on osteopontin (OPN), people found out that there was little amount in the normal tissues that was showed with low expression, however,...

In this paper, two-steps forging is used to manufacture duplicate gear blank. The simulating of the second step forging process is based on DEFORM which is a finite element software. The forming parameter range was determined while the forging force was predicted. Using a set experiment tool of closed-die...

The vigorous development of the Chinese MOOC platform has brought the huge amounts of data. How to tap the value of these data is the current research problems to be solved. This paper puts forward the data mining framework through analyzing the data features of user data in MOOC platform under the large...

The sealing detection technology for no leak detection interface specimen was introduced, such as bubbles leak detection, back pressure leak detection, advance helium leak detection, fluorescence permeation leak detection and inside helium source leak detection, including their principles and specialties....

The measurement accuracy of the articulated coordinate measuring machine (AACMM) is different in different sub measurement regions. In order to improve accuracy, The method for dividing and merging of sub measurement region based on Density-Based Spatial Clustering of Applications with Noise (DBSCAN)...

With the great progress of hemoglobin-based blood substitutes, however, they all have a same problem that is hard to get effective stable structure of hemoglobin. The hemoglobin can be oxidized into met hemoglobin in the process of purification, lead to the loss of the function of carrying and transporting...

In EDM, especially in small holes EDM machining, there will be a lot of debris produced which is difficult to remove from narrow gap. If the debris can’t be removed in time, it will affect the machining accuracy and efficiency, and sometimes even unable to complete the processing. In this paper, the...

Water transportation are becoming more and more important in the transportation area. The ship lock is one of the most significant facilities in the inland water transportation. In this paper, different kinds of hoisting machines for the ship lock gate were introduced. Characteristics of the connecting...

Composite insulators have been widely used for transmission line, which have been noted for the aging problem with the increase of the installed number and service time. Characteristics analysis of aging composite insulators were analyzed using attenuated total reflect ion infrared spectroscopy (ATR-FTIR)...

Star sensor is an important part of the attitude control of a space vehicle. The advantages and disadvantages of the optical system determine the accuracy of the whole star sensor system. In order to adapt to the development of China's space needs, a star sensor optical system was designed by a domestic...

The canopy temperatures of rice were observed by the infrared temperature measuring equipment under different irrigation conditions in this experiment, and also it applied the CWSI empirical model and theoretical model to measure whether the crop were suffered from water stress or not. Meanwhile, in...

Porous photocatalytic titania film co-doped with Fe and Si was fabricated on carbon steel substrate by plasma electrolytic oxidation (PEO). The microstructure of the film was investigated and the photocatalytic activity of the film was tested by measuring the photodegradation rate of the organic methylene...

Micro arc oxidation (MAO) coating was first fabricated on AZ91 biomedical magnesium alloy and followed by surface laser treating. Effects of laser treating on surface characteristics of MAO coating were studied. The results indicated that after surface laser treating, the micro pores on MAO coating surface...

A method to establish performance degradation model for barrel based on general regression neural network with fruit fly optimization algorithm (FOAGRNN) was proposed. It took the muzzle velocity reduction as performance degradation feature with the increase in the number of shooting ammunition quantity...

Shadows of the sun position techniques can determine the place and date of the video. First, use Matlab to extract video files, extract n pictures at such intervals, after reading the picture get n sets of the shadow length l changes with time t. Known date from capture date calculate solar declination,...

Multipoint low voltage differential signaling (M-LVDS) [1], who’s electrical parameters meet the requirements of ANSI/TIA/EIA-899 standard, is a widely used technology in multipoint interconnection. Through the study of the standard, the wide-swing current mirror technology was proposed to satisfy the...

This paper present a process of failure analysis which, to some extent, can demonstrate a variety of failure process in regard to power transistors. General failure analysis process will be introduced at the beginning of this article. The test objects are power transistors which were found to be the...

The gold and aluminum (Au-Al) wire bonding is used to realize interconnection for semiconductor devices. But, sometimes, the failure of Au-Al bond wire exists. In this paper, the failure influence factors of Au-Al bonding to Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) were discussed....

The paper researched the DNA computing method of classical optimization problems on weighted graph, improved the method of Weight-coding that belongs to the original model of DNA, raised some new methods of DNA encoding and DNA computing. Generally speaking, through the Relative length graph design that...

It is highly important to choose suitable of the foundation in underground engineering. With the engineering, the foundation is made of gravelly soil, which distributed discontinuity and had bad uniformity. Drilling method, dynamic sounding method and deep plate loading test were applied, combined with...

Aiming at the limitation of the traditional substation in the control and management, computer remote control technology was used to ensure the personnel on duty in the remote control center can obtain monitoring information of unmanned attended substation to realize the substation intelligent management...

The polymerization of acrylamide was initiated by complex redox system in aqueous solution.Meanwhile, according to the best experimental craft,we conducted a pilot-scale polymerization of acrylamide.We studied the effects of different pilot experiment intrinsic viscosity of the polymer, dissolution time,...

The ternary cation flocculant P(AM-DMDAAC-DMC) was synthesized by aqueous solution polymerization with raw materials of acrylamide(AM),and dimethyl diallyl ammonium chloride(DMDAAC) and methacryloyloxyethyltrimethyl ammonium chloride(DMC) with the complex redox as initiator.Effects of cationic mononer...

A method to evaluate fluctuation characteristics of daily solar irradiance was introduced based on theoretical solar irradiance. Process feature of daily solar irradiance were analyzed. Observed daily solar irradiance of 10 days in Beijing was tested to demonstrate the effectiveness of this method. Result...

Oil shale as the petroleum alternative is widely distributed in China, the total oil shale resources and potential shale oil resources are estimated at 719.937 billion tons and 47.644 billion tons, respectively. Shale oil and gas can be obtained through the pyrolosis of the oil shale. In order to study...

The choice of fuzzy rules and membership function of fuzzy self-adjusting PID controller of tunneling boring machine (TBM)’s thrust hydraulic system exists the defect of subjectivity to a great extent. The genetic algorithm (GA) was adopted to optimize fuzzy rules and parameters of membership function...

Fe2O3 nanorods grown on reduced graphite oxide RGO was synthesized via a facile hydrothermal method followed by a heat-treatment process. The Fe2O3 nanorods grown on the RGO has a average diameter of 40 nm, which is smaller than the pure Fe2O3 nanorod. Investigated as an anode material for Li-ion batteries,...

Nano ZnO/graphene composites were prepared by the oxidation of graphite and nano ZnO as the precursors under the condition of water temperature at 120 . The photocatalytic activity of the composite was detected to treat simulated antibiotic wastewater by using the solution of tetracycline hydrochloride...

With the rapid development of medical and health undertakings in China, the requirement of the qualified medical service system was increasing, more and more medical had introduced the advanced medical equipment, the introduction of a large number of equipment to make the medical equipment maintenance...

The diagnosis of breast disease in Europe and other advanced western developed countries were mainly the biopsy technique, which included fine-needle aspiration biopsy for cytological diagnosis and core needle biopsy for histological diagnosis. This two methods could figure out the basic pathological...

The compatibility, stability and the pyrolysis behavior of aluminum based solid-liquid compound fuel were systematically investigated by thermogravimetric analysis (TGA). The compound fuel lost its 30% weight before the temperature rose to 150 . AP decomposed at 210 and lead to 50% weight loss. The reaction...

In this paper, the microcontroller interrupt control technology, designed a simple microcontroller to control the LED lights off simulation system, the system was applied to the lectures can be intuitive so that students understand the process of computer disruptions, achieve a multiplier effect of teaching.

Based on the features of the structure of double-arch permeable rib tunnel and its spatial deformation mechanism, a corresponding construction monitoring and measuring program was demonstrated in this paper. The reasons of the vault slope deformation and cracking which was the main risk during the construction...

This paper devotes to the APK sensitive behavior was studied by classification, and quantifies the APK sensitive behavior, finally after a quantitative APK sensitive behavior can be measured on the basis of the APK sensitive value, through the unique static detection method based on classification show...

Based on a new buffer layer, the characteristics of multiple proton implantations field stop IGBT ( MPI-FS-IGBT) were simulated and analyzed Different from the conventional field stop IGBT (FS-IGBT) which has an abrupt thin buffer layer and grade-doping field stop IGBT(GFS-IGBT) whose buffer layer was...

Low-temperature sintering of Pb0.995Cd0.005(Zr0.965Ti0.035)O3 ceramics was investigated using CuO as a sintering aid. Effect of CuO addition on the sinter ability, microstructure, and electric properties of PZT ceramics were systematically studied. The addition of CuO significantly promoted the densification...

Blue fluorescent material combined with red uorescent dye doped into tris-(8-hydroxyquinoline) aluminum (Alq) in multilayer organic light-emitting diodes(OLEDs) were investigated. Basis device architecture is indium tin oxide (ITO)/ N,N -bis-(1-naphthyl)-N,N -diphenyl-1,1 -biph-enyl-4,4 -diamine(NPB...

For problems in the process of building central air conditioning system to participate in demand response, including non-uniform communication protocol, non-uniform information model and lack of demand response strategy, we put forward the thinking and concrete scheme of research and development of the...

A pneumatic driven microfluidic chip system adopting a stepper motor is presented in this paper which changing the valve opening with a stepper motor and controlling the pressure of the gas cavity. The simulation model was built by using Simulink nonlinear module after expounding the structure and working...

This paper has investigated the effect of hue on visual comfort and depth perception through subjective assessment experiments with the stereoscopic images generated by computer. The evaluation results indicated that the variable of hue would significantly affect the viewing experience under different...

A road traffic safety culture construction concept was proposed which consisted of criterion layer and index layer. The frequency of issues that folks' focused on were analyzed based on the fuzzy analysis method, furthermore, the research results were classified by discrepancy quantification. At last,...

The remote sensing technology has become the important tool for the basic geological study in the strongly dissected topography and high altitude mountain area. Based on analysis of OLI remote sensing data, the optimal band combination of R: G: B is Band 7: Band 5: Band 4 according to the analysis result...

Site error measurement of voltage transformer is important content of electric energy metering device administration, relating to accuracy of electric energy measurement and just trade settlement for power plant and power corporation. In this work, the error measurements of voltage transformer in different...

All-sky autonomous star map identification has come up with higher requirement on calculating speed and storage space. Error caused by rotation and location noise influences the performance of star image identification algorithms. So various algorithms include procedure of rotating star image to the...