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Effects of busulfan on serum steroid hormones, GSI, gonad development and sex reversal in the Asian swamp eel (Monoptrus albus) Hanwen Yuan1,2, Guoliang Ruan1,2, Shiyuan Gong3, Yongchao Yuan3, Denghang Yu3, and Daiqin Yang1,2* 1 Engineering Research Center of Wetland Agriculture in the Middle Reaches of the Yangtze River, Ministry of Education, Yangtze University, Jingzhou, Hubei, China 2 College of Animal Scicece, Yangtze University, Jingzhou, Hubei, China 3 College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China a Email: yuanhanw@163.com;b Email: 475095720@qq.com; c Email: 444920658@qq.com Key words: Monopterus albus, Busulfan, steroid hormones, Gonadosomatic index, Sex reversal Abstract.
Materials and methods Fish: The experiment was performed using fish from stocks, broadly as described previously[7].

Glycolysis of Polyethylene Terephthalate Catalyzed by Solid Superacid Minli Zhu1, Yanqing Liu1, Ruiyi Yan1,2, Hui Wang1, Zengxi Li1, a *, Xingmei Lu2, b 1Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China alizengxi@gucas.ac.cn, bxmlu@home.ipe.ac.cn Keywords: Solid superacid, Sulfated titania, Catalyst, Characterization, Depolymerization, PET Abstract.
Chemical recycling of PET waste is an alternative for material recycling.
Experimental Material.

Design and Analysis of a Novel Wall-Climbing Robot Mechanism Weiguang Dong 1, 2, a, Hongguang Wang 1, b, Aihua Liu 1 and Zhenhui Li 1, 2 1State Key Laboratory of Robotics, Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang 110016, China 2Graduate School of the Chinese Academy of Sciences, Beijing 100039, China adongweiguang@sia.cn, bhgwang@sia.cn Keywords: wall-climbing mechanism; hybrid locomotion; kinematics Abstract.
The experimental content includes moving on flat surfaces of various materials and the exterior surface of an aircraft.
Hong, A Survey of Climbing Robots: Locomotion and Adhesion, Journal of Precision Engineering and Manufacturing, 11(2010), 633-647

Gotovschik Yurga Institute of Technology of National Research Tomsk Polytechnic University Leningradskaya 26, Yurga, Russian Federation, 652055 аmita8@rambler.ru, bchinakhov@tpu.ru Key words: arc welding, power supply type, properties of weld joints, health characteristics.
Introduction The reliability of weld joints in metal constructions and technical devices in electrical, oil-producing, mining, chemical, engineering and other industries has a significant impact upon safety and economic efficiency.
Table 8 - The results of analysis of dust, gases and other substances emitted in the process of manual arc welding with different power supplies Air sampling conditions The measured element Measure Power supply Maximum concentration limit inverter diode rectifier Materials LB -52U Ø 3.2 mm. steel 09Г2С Carbon oxide mg/m³ 0.05 0.05 20.0 Nitrogen dioxide less than 0.6 less than 0.6 2.0 Anhydrous hydrogen fluoride less than 0.02 less than 0.02 0.5 Welding fumes 2.2±0.5 3.6±0.9 Chrome anhydride less than 0.003 less than 0.003 0.01 Chrome oxide less than 0.5 less than 0.5 1.0 Manganese 0.10±0.03 0.15±0.03 0.6 Table 8 shows that using the inverter type of power supply reduces the concentration of welding fumes and manganese, thus, reduces the risk of poisoning and respiratory disease for the welder and auxiliary workers.

The Study of Region Combined with Era on Planning Design of First High School in Dongxiang County Feijin Xu1, a,Ning Wu2,b 1,2 School of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, China 330099 afeijinxu@hotmail.com; b739641253@qq.com Keywords: region, cultural heritage, planning, five-dimensional, quality education Abstract: With trational planning concept, the overall architectural design and landscape design thinking, according to the current education development trends and the students' own characteristics, to create a unique place for students to learn and communicate, to reach the perfect fit for building meaning and the spirit of place.
During Qing dynasty, Daoguang six years built academics, Guangxu 28 years established the higher primary school, Minguo 28 years set up the Dongxiang County Junior High School, which was listed as an academic reform pilot secondary schools in the sole province in 1964, and was approved as the Jiangxi Province key middle school in 1980.
Building design Architectural design follows the following characteristics: Regional features expression.Comprehensive local regional and cultural features, create the distinctive campus image and make it become iconic landscape; use the new materials and new technology to express the organic fusion of old and new.

The converters in the world are not identical, so it’s not necessary to concern all the materials for the heat balance.
International Conference on Materials for Renewable Energy & Environment Proceedings.
Advanced Materials Research (2011), p. 2648-2653
Advanced Materials Research (2011), p. 2644-2647
Advanced Materials Research (2012), p. 3836-3839 [14] Hong Li.

Increased conductor section will lead to increased material use, increased steel consumption for iron tower and increased project investment.
Therefore, on the one hand, aluminum material is saved; on the other hand, conductor weight and working strength are reduced.
China Power Engineering Consulting Group Corporation, etc.
China Power Engineering Consulting Group Corporation, etc.
Provisional Regulations of Electric Power Engineering Economic Analysis.

Doped fluoride crystals of the type BaLnF5 ( Ln = La, Lu and Y ) are important classes of materials for laser, phosphor, and upconversion applications [5].
Mishing, in: Diffusion Processes in Advanced Technological Materials, edtied by D.
Clem: submitted to Journal of Materials Research (2003) [6] P.G.
Grabmaier: Luminescence Materials, Springer, Berlin, 1994
Guo: Optical Materials.

Effects of Perinereis aibuhitensis activities on biomass and absorption of heavy metals of Suaeda heteroptera kitagawa Jie He1,3,a,Yu-Ting Gao 1,3,Da-Zuo Yang2 ,Bin Wang2,b, Yi-Bing Zhou 2,c 1School of Marine Environmental Engineering，Dalian Ocean University，Dalian 116023，China; 2Key Laboratory of Marine Bio-resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University , 116023，China；3 Key Laboratory of Nearshore Marine Environmental Science and Technology in Liaoning Province，Dalian Ocean University，Dalian 116023，China; ahejie@dlou.edu.cn,bwangbin@dlou.edu.cn,cCorresponding Author:ybzhou@dlou.edu.cn Keywords: Perinereis aibuhitensis；Suaeda heteroptera kitagawa; heavy metal contaminated sediment, bioremediation Abstract.
In recent years some studies indicated Perinereis aibuhitensis showed strong resistance to heavy metals pollution in sediments and played important roles in accelerating the formation of sedimentary material structure, promoting the material conversion, increasing the available nutrients and improving material cycle, etc.[12].
Materials and methods Materisls Suaeda heteroptera kitagawa seeds for test is the annual dry seeds which were purchased from Panjin in Liaoning province, Perinereis aibuhitensis for test is Perinereis aibuhitensis which were collected from coastal area of Heishijiao, Dalian, Liaoning province. the average fresh weight was 0.4g（±0.0037）.The crude oil for test was taken from the Liaohe Oilfield.
:Journal of Coal Science & Engineering,Vol.16 (3)(2011),P.316-319 [10]Minghe Zhu,Yongsheng Ding,Ding De-wen:China Environmental Science,26(Suppl.)(2006).P.110-113 [11]Xu Ma,Yongsheng Ding:Dalian Maritime University,2004,P.2~3(In Chinese) [12]Fuhong Sun,Qixing Zhou:Chinese Journal of Applied Ecology.MarVol.17(3)(2006),P.530～534 [13]Jing Wang,Qixing Zhou,Qianru Zhang,Ying Zhang:Environmental Science,Vo1.28(8)(2007),P.26 [14]Edwards CA.

College of Agricultural Science Engineering.
Soil quality indicators are a set of soil physical, chemical and biological properties that perform the key soil ecosystem functions [2].
Inherited soil properties form over centuries and result from the soil forming factors primarily, which are parent material, climate, topography, biota, and time.
Although it may found in semi-humid and humid regions were the soil derived from parent material rich in CaCO3 as limestone [7].
Series: Materials Science and Engineering 454 012004 doi:10.1088/1757-899X/454/1/012004. (2018) [14] D.