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This document explains and demonstrates how to prepare your camera-ready manuscript for Trans Tech Publications. The best is to read these instructions and follow the outline of this text. The text area for your manuscript must be 17 cm wide and 25 cm high (6.7 and 9.8 inches, resp.). Do not place any text outside this area. Use good quality, white paper of approximately 21 x 29 cm or 8 x 11 inches (please do not change the document setting from A4 to letter). Your manuscript will be reduced by approximately 20% by the publisher. Please keep this in mind when designing your figures and tables etc.

Copper Ferro Alloys (CFAs) have an excellent shielding effect in the electromagnetic field, as well as the similar good conductivity and ductility with copper, and strong magnetism and toughness as analogous to iron. Consequently, it is considered to be novel structural and functional materials with huge development potential and wide application foreground. The influence of the content, size and distribution of Fe phase in the Cu matrix on the electromagnetic shielding property of CFAs is crucial. In the present study, CFAs with various Fe content were fabricated via powder metallurgy (P/M) combining with deformation processing. The microstructure, electrical conductivity, magnetic and mechanical properties of CFAs were investigated by optical microscopy (OM), scanning electron microscopy (SEM), X-Ray diffraction (XRD), and tensile test. The results indicated that P/M CFAs with the homogenous and fine in-situ Fe particles showed better comprehensive performance compared to those prepared by conventional casting. Based on the microstructure observation, mechanical properties were discussed.

Oviductus rana is a traditional medicinal product of Jilin province, China. The objective of this study was to observe the effects of the oviductus rana hydrolysate on the immune functions of immunosuppressed mice. For the purpose, this product was hydrolyzed by the combination of papain and compound proteases for which the optimum conditions of hydrolysis were also achieved. The optimum hydrolysis conditions found in this study were: composite enzyme concentration 4%; temperature 50 °C; time 4 h. The results showed that the coefficients of spleen and thymus were increased in the dose groups (P<0.05) whom oviductus rana hydrolysates were given in different concentrations as compared to the model group (without oviductus rana hydrolysate). These parameters increased as a function of concentration of oviductus rana hydrolysate. Carbon particle clearance index were also higher in the dose groups than that of model group and control. This index was the highest in the high dose group and increased as a function of dose of oviductus rana hydrolysate. The ability of macrophage as well as the delayed type hypersensitivity increased significantly in the dose groups (P<0.01). Meanwhile, the contents of IgM and IgG were also raised (P<0.01) in middle and low dose groups whereas decreased in high dose groups. It is found that oviducts rana hydrolysate had a marked effect on the immunity of immune-suppressed mice.

Equivalent magnetic circuit method is a rapid calculation method used in magnetic circuit simulation. But for a long time this method can’t be used widely because the algorithm is not general and there is no commercial software developed for this method. In this paper, general software for magnetic circuit calculation was developed using LabVIEW language. Quasi-Newton algorithm was used in solving nonlinear Kirchhoff equation of magnetic circuit in this software. The project file in this software can be shared freely in different calculations. This software is expected to save the time-cost in the design of new product.

The concentration and distribution features of MTBE in the atmosphere in Shenzhen were studied by analyzing samples which were collected in three consecutive days. In this study, pre-concentrator technology and gas chromatography were used. The result showed that the MTBE could was detected in atmosphere of the Shenzhen, and the range of its concentration was from 0.086 - 1.453μgm^-3, including the daily average concentration of 0.662±0.334μgm^-3 in industrial area, 0.331±0.216μgm^-3 in commercial residential area, 0.258±0.154μgm^-3 in tourist area, and 0.158±0.045μgm^-3 in background area. The MTBE concentration in industrial area was 2 times of the commercial residential area, 2.6 times of tourist area and 7 times of the background area. These differences were statistically significant (p<0.008) by the Kruskal-Wallis Test. The MTBE concentration was the highest during one day in the period of 17:00-19:00 of industrial area, which was 0.716±0.306μgm^-3. However, the MTBE concentration in the commercial residential area and tourist area were highest in the period of 11:00-13:00, the MTBE concentration were 0.394±0.224μgm^-3 and 0.446±0.069μgm^-3 respectively. In the workday, the industrial area and commercial residential area were higher compared to the weekend, and the tourist area showed opposite trends, but no matter the comparison of hour average concentration or the workday and weekend, the difference were not statistically significant. It was concluded that the MTBE concentration in atmosphere environment in Shenzhen has the typical spatial specificity because of the different source of MTBE, but has no the time specificity.

This paper discusses the design and simulation of 4H-SiC semi-SJ structures producing results that are below the unipolar limit, whilst also ensuring practical and cost-effective realisation. The results demonstrate that a semi-SJ structure with a 10° sidewall angle increases the implantation window of the device by 45%, relative to the full-SJ, whilst maintaining a high V_BD of ~2 kV and a low R_ON,SP. This design facilitates a wide implantation window with a reduced trench aspect ratio, significantly improving the practical realisation of the device. It also offers softer reverse recovery characteristics as a result of both the angled trench sidewall and the n-bottom assist layer (n‑BAL) which allows for the structure to be depleted gradually.

In view of the characteristic that the bottom pressure of Coalbed Methane Wells (CBM wells) is low and the structure of coal bed could be easily destructed, the author designed a kind of jet pump. The jet pump could improve efficiency of washing bottom-hole coal particle in condition of protecting the structure of coal reservoir. In this paper, we have analyzed the structure of jet pump and working principle; and given the method of calculation the basic parameters of jet pump on the basis of calculating the working efficiency of jet pump from the point of cavitation.

An non-vertical stereoscopic 3-D display method by changing the parallax value of the parallax images is proposed. This method is capable of displaying virtual reality with high-immersion sense because the observing depth only depends on the parallax value. An experimental 3-D display system capable of producing high-immersion and virtual reality video images at 45 degree is developed. Furthermore, the effectiveness of the method is demonstrated by using this system.

This paper introduces the fabrication method of a kind of gas phase phosphorus heavily-doped float zone (FZ) silicon, including thermal field design (electromagnetic copper coil with double water cooling system). This method solves the problems during the pulling process of heavily-doped FZ silicon crystal of phosphorus doped. The gas phase phosphorus heavily-doped FZ silicon crystal using this methods with low oxygen content (less than 0.2ppma),low radial resistivity variation (less than 10%), low resistivity (the minimum of 0.002 ohm.cm), and is good to meet the transient voltage suppressor (TVS) for silicon substrate material requirements.

A new kind of polyamine salt inhibitor (code name BH-JAI) with low molecular weight, was synthesized and evaluated in the lab. The tests showed that BH-JAI could suppress the hydration and dispertion of reactive claystone effectively, compatible with organic salt or KCl water drilling fluid, and could play its role of inhibition even at temperature as high as 200°C. The field tested in 5 wells suggested that the new polyamine salt could enhance the inhibition ability of drilling fluids obviously, and reduce downhole complex accidents such as sloughing and tight hole efficiently.