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Overview of BIPVs/BAPVs system According to the combination degree of PV components integrated with building, PV application in building is divided into two type: First, building and PV system combination is packaged PV module installed in the building on the roof, also known as photovoltaic attached to the building (Building Attached photovoltaic, BAPV), another form of BIPV photovoltaic system integrated with building design, photovoltaic devices and building materials are integrated, instead of some building materials.
Amorphous thin film PV as a new generation of solar cells, thin film solar cells not only has abundant raw materials and low energy consumption, pollution-free, easy to highlight the advantages of the production of large area, low light, good adaptability, etc., has a large advantage in BIPV.
Acknowledgements This work was financially supported by National High Technology Research and Development Program of China (Grant No: SQ2010AA0500165004) and Zhejiang Provincial Natural Science Foundation (Y1100243).
Beijing：Science Press，2009
Architectural Journal,2006,7:p.30-33

It is common knowledge that harmful substances in materials can be leached out to overland runoff, soil or even underground water in surface rain’s leaching procedure.
Leaching experiment is usually used to identify harmful substances in materials, to find out maximum leaching content of harmful elements, to know about factors affecting harmful elements’ transfer, and to provide kinetic parameters for computer simulation [4].
Materials and methods Environmental devices.
Leather waste— potential threat to human health and a new technology of its treatment, Journal of Hazardous Materials, 2008 (160):514–520 [3] Order No.1 of Environmental protection agency and National development and reform commission of PRC: National hazardous waste list, 2008-6-6 [4] Zhao Fenghua, Ren Deyi.
Environmental science, 1996, 17(1):16-19 [7] Cheng Yankun,Zhao Wenxia, Li Li, et al.

Introduction Silicon-carbon coatings represent a new class of diamond-like materials developed by V.F.
Advances in Materials Science and Engineering. 2010 (2010)
Patel, Tribological Properties of Diamond-like carbon and Related materials, J.
Diamond and Related Materials. 2 (1993) 597-605
Li, Diamond-like Carbon Film synthesized by ion beam assisted deposition and its tribological properties, Journal of Vacuum Science and Technology. 14, no. 4 (1996) 2039-2047

Materials and Method Kappa carrageenan was obtained commercially from the Indonesian market.
The materials were used as received without further purification or any additional treatment.
Pilon, Physical Interpretations of Nyquist Plots for EDLC Electrodes and Devices, The Journal of Physical Chemistry C. 122 (2018) 194–206
Rayung et al., Bio-Based Polymer Electrolytes for Electrochemical Devices: Insight into the Ionic Conductivity Performance, Materials. 13 (2020) 838
Yao, Positioning Organic Electrode Materials in the Battery Landscape, Joule. 2 (2018) 1690–1706.  

%Ti (denoted as BS40-1.0Ti) pre-alloyed powder (Nihon atomized metal powders Co.) was used as raw material.
Acknowledgements This work was supported by the project of the Japan Science and Technology Agency (JST).
[4] Shufeng Li, Hisashi Imai, Haruhiko Atsumi, Katsuyoshi Kondoh, Journal of materials science, 45(2010) 5669-5675
[7] Jones H., Materials letter 26 (1996) 133-136
[8] Katgerman L., Dom F., Materials science and engineering A 375-377 (2004) 1212-1216

Abstract:Thermal composition of low temperature water is taken as way in the text, with the MgSO4·7H2O and NH4HCO3 being raw materials to make nesquehonite whiskers, further talking about the concentration of the reactant, reactive temperatures, mixing speed, solution pH and the quantity of additive addition etc. factors impacting whiskers synthetic of magnesium carbonate hydrate by controlling the growth environment.
Domestic scholars[6-8] in different crystalline materials are also well prepared with different specifications of the nesquehonite whiskers, and a preliminary study of the temperature and additives on the growth of whiskers.
Conclusions Influences of the concentration of reactants, reaction temperature, dropping rate, pH, additive content in the reaction of MgSO4·7H2O and NH4HCO3, on the synthesis of hydrated magnesium carbonate whiskers, the following conclusions can be drawn: (1) By controlling the environment of crystal’s growth. the best performance magnesium carbonate tri-hydrate is made under the conditions of raw material concentration of whiskers in 0.5mol / L, reaction temperature 50 oC, pH value of 9.5, MgSO4 of a dropping rate of 2.45mL/min, Addition level of 0.5%( by mass), the average length of 247μm, the average diameter of 7.2μm, the average length-diameter ratio of 34
Acknowledgements Authors wish acknowledge the National Natural Science Foundation of China for financial support of this work under project No.51004064.
Journal of the Chinese Ceramic Society, Vol.30 (2002),p.93-95.

The preparation of rapidly solidified and powder metallurgy AZ91 alloy Shaoding Sheng1,a Hongge Yan2,b 1 College of Material Science and Engineering, Anhui University of Technology, Huainan, 232001, China 2 College of Material Science and Engineering, Hunan University, Changsha, 410082, China ashengshao-4210@126.com,byanhg68@163.com Keywords: magnesium alloy; rapidly solidified; powder metallurgy; mechanical properties Abstract: AZ91 alloy powder was prepared by two-roller quenching equipment.
Results and discussion The phases in the RS powder and the as-extruded materials The XRD patterns of the RS powder and the as-extruded rods of the magnesium alloys are shown in Figure 2.
Materials Science and Engineering ,2004, 367 :26
Material heat processing transaction, 2005，26（1）：32
Journal of .Japan Institute of Light Metals, Vo1.51, No10, Oct. 2001, 51(10):534 [11] Xu Jingfeng, Que Qiuya, yuan Sen.

These elements are applied in the production of materials for superconductors, permanent magnets, lasers, rechargeable batteries, catalysts.
It is most suitable to use a combined two-stage flow sheet for this type of raw material.
Materials and Methods The chemical composition of the primary ore and slag was analyzed by X-ray fluorescence and atomic emission spectrometers.
Babu, Novel red phosphors Gd2GaTaO7:Eu3+,Bi3+ for white LED applications, Science Materials in Elec-tronics. 26 (2015) 43-47
Jiang, Separation and recovery of valuable metals from low-grade REE-Nb-Fe ore, International Journal of Mineral Processing. 150 (2016) 16-23 [5] A.V.

Materials and Methods Materials Characterisation of O-MMT The organo-modified nanoclay (Nanomer 1.44P) was obtained from Sigma Aldrich, which contains about 65% MMT and 35% surfactant – dimethyl dialkyl (C14-C18) amine.
Conclusion In this study, composite materials were developed from O-MMT treated unsaturated polyester at various concentrations with keratin fiber.
Duncan, Applications of nanotechnology in food packaging and food safety: barrier materials, antimicrobials and sensors, J Colloid Interface Sci. 363 (2011) 1–24
Yang, Composites from ground chicken quill and polypropylene, Composites Science and Technology, 68 (2008) 790 – 798
Rahman, Comparative study of dielectric properties of chicken feather/ kenaffiber reinforced unsaturated polyester composite, Journal of BioRes,8 (2013) 1591 – 1603

These caused a mass of waste of material.
It can be seen that material is saved 35089kg after being optimized, if the material is calculated by 6000yuan /1000kg, the cost 210 thousand yuan can be reduced.
It is visible that a large amount of raw materials will be saved in optimization design of structural and special attention will be surely paid by engineering field and developers.
Acknowledgements The study described in this paper was supported by the Heilongjiang Provincial Department of Education Science and technology research project (project number: 12511022) and The National Natural Science Foundation of China (project number: 51178087).These supports are gratefully acknowledged.
Vol.12 (2010), p.68 (in Chinese) [2] Xiaodong Xu, Yan Liu and Weiqiang Wang: Journal of Shandong University Engineering Science.Vol. 39(2009), p.101(in Chinese) [3] Chang Ding and Rongshun Wang: Cryogenics and superconductivity.