Applied Mechanics and Materials Vol. 707

Abstract: Zinc is an essential trace element, zinc content in human body is 1.4~2.3g, is widely distributed in various tissues, including skeletal and skin are more, the nutritional status of zinc content in hair Znn reflect the long-term supply of dietary zinc level and human zinc. Using the high pressure nitrifying pot method and wet method and treatment of samples were determined in natural Huazi Mushroom samples Zn element content. High pressure nitrifying pot method relative standard deviation of Zn element is 5.82%; Wet method to determine the relative standard deviation of Zn elementt is 4.81%. Visible high pressure nitrifying pot method and treatment of samples of precision of the measuring precision and wet processing samples are relatively low. By comparison, high pressure nitrifying pot method specific humidity method to deal with the sample good measuring precision, higher accuracy, and the measurement process to save time.

Abstract: Seafood products has a long history and the teachings ‘Raw crabs and shrimp live’ spread among people. This study carrys out an investigation into parasitic infections of raw seafood of Qinhuangdao through sampling, smearing, UV examination and statistical methods. The experimental datas we get tell that there is various kinds of parasite lar-vae in body of shrimp frequently and metacercariae in crabs. The seafood likeoster and clam aren't without parasites also. Experiments show that the lung fl-uke metacercaria could live about 48 hours in Salt solution with concentration-f 10%, 43 hours in 15% liquor and 28 hours in 14 degrees of yellow wine. Itis obvious that these parasites could not killed through salt leaching and temul-entia. Due to domestic waters pollution is serious, so don't eat raw food.

Abstract: Rotator cuff injury is one of the most common musculoskeletal system diseases in exercise-induced injury, self-setting calcium phosphate materials has a very good promoting role in the rotator cuff tendon bone interface in the repair process, it can effectively improve the maximum tensile strength of tendon bone interface and stiffness, and promote recovery of biomechanical properties. Therefore, the use of calcium phosphate artificial material can promote repair of the tendon bone interface in exercise-induced rotator cuff injury, and achieve early functional exercise, and early recovery of limb function and ability to live and work.

Abstract: The research of diagnosis and treatment system of child mental health disorders is based on artificial neural network and expert system. It combines the diagnosis standard of ICD 10, DSM IV with 40 years clinical experiences and knowledge of senior child psychiatrists. It also combines computer science with child psychiatry, child psychology, psychological estimate, psychological therapy and so on. The learning samples come from the epidemiological data in more than a dozen nationwide hospitals. The correct rate of system diagnosis is 99%. The system can diagnose 61 kinds of child mental health disorders and give a treatment method suggestion.

Abstract: The modified clay have excellent adsorption performance. This paper discussed the adsorbent dosage, pH, temperature, adsorption equilibrium time and so on the influence of factors on the adsorbent adsorption performance, the results show that the microbial fermentation of rice bran to Cd²⁺ has good adsorption effect. The best adsorption conditions for: dosage of microbial fermentation of rice bran 18 g/L, temperature 30 °C, pH = 3.8, Cd2 + mass concentration is lower than 50 mg/L, the adsorption equilibrium time 30 min, adsorption rate can reach 93.5%, and its application foreground is prospected in wastewater treatment.

Abstract: This paper studies the preparation of phytic acid with sepiolite compound phytic acid compound sepiolite adsorbent of heavy metals adsorption performance is good, and the adsorption of the optimum adsorption conditions was studied, the optimum adsorption conditions for adsorbent dosage 30 g/L, temperature 40°C, pH = 3, the adsorption equilibrium time 30 min, Cd⁶⁺, concentration is lower than 50 mg/L.

Abstract: China is a big country of coal production, in the coal mining process, the great massive mine drainage has caused not only the waste of groundwater resource, but also environmental pollution. On the other hand, mining production and life supply water is very scarce. According to the mine water features, the majority of mine drainage water belonging to the mine water containing suspended, the mine water needs to do the necessary purification then can be used. What the purification mainly eliminates is the suspended. In this paper, the method of purification and the technological process about mine water are discussed. The main methods of handling are coagulation, sedimentation, filtration and disinfection. According to different characteristics of water quality, different ways of handling and technological processes have to be chosen. Finally, the purification and utilization of mine water are shown through practical examples, Pingdingshan Coal Group Company, Wannian Coal Mine of Fengfeng Group Limited Company and Tangshan Coal Mine of Kailuan Group Company, to have obvious social, economic and environmental benefits.

Abstract: In recent years, ZigBee technology is widely used in the greenhouse environment measurement and control system, however, its poor penetration and low anti-interference capacity limit its more applications. To solve these problems, a greenhouse environment measurement and control system based on super Wi-Fi was designed. In this paper the concept of super Wi-Fi is introduced, the superiority of super Wi-Fi is showed though comparing with several other communication technologies, protocol stack of super Wi-Fi is also developed. The structure of greenhouse environment measurement and control system based on super Wi-Fi is also introduced and terminal wireless sensor network node was designed, finally this paper draws the conclusion that this system has the features of long transmission distance, good anti-jamming, low power consumption,but it has poor real-time performance, which need to be improved.

Abstract: Regional land use is an important source of carbon emissions .To some extent , the optimization land use will change the pattern and structure of human energy consumption .In this paper, we try to put forward a new approach to optimize the land use structure of the low carbon target in Zhangye .Three schemes for land use low-carbon optimization were proposed and analyzed, and the policy suggestions were put forward finally . Compare with the original plan, Optimization program in the year of 2020, the amount of carbon accumulation increase 124.1648 million tons, and carbon emissions reduce 1,152,100 tons. This indicates that the scheme for land use planning to achieve carbon reduction and carbon accumulation has important guiding significance.

Abstract: Soil nutrient in greenhouse soil was studied in Haicheng Municipality, Liaoning province. Results showed that the soil nutrient including organic matter, total nitrogen, total phosphorus, alkaline hydrolysis nitrogen, available phosphorus and available potassium presented parabolic curve change with increasing cultivating years. The highest contents all appeared in 8 years, which are 3.2 and 2.8 times higher than those in open field at 0-20 cm and 20-40 cm depth, respectively. The vertex of nitrate and soluble salt were also appeared in 8 years. Correlation analysis suggested the relationships among nutrients were very significant. It is also suggested the salinization of soil was the inevitable result of the excessive organic fertilizer and chemical fertilizer.