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The usual sorbent materials for column packing are, nano-alumina [2], silica gel[9], chelating resin[10], activated carbon [11], multiwalled carbon nanotubes [3,12], silica-coated magnetic nanoparticles [13], et al.
Macroporous silica gel is one of the most used materials for the preparation of sorbents[14-16] because of its advantages, such as not easy to shrink and swell like resin, not easy to agglomerate like nano-inorganic particls.
Because of their special structural characteristics [17,18], dendrimers have become one of the promising research fields because of the possible application in Optical materials [19], Environment sensitive material [20], catalysts [21], nano materials [22], Control release of drugs[23] or other supramolecule dendritic arrangements.
Jamali, Application of modified nano-alumina as a solid phase extraction sorbent for the preconcentration of Cd and Pb in water and herbal samples prior to flame atomic absorption spectrometry determination, Journal of Hazardous Materials 178 (2010) 900–905
Jiang, Tris(2-aminoethyl) amine functionalized silica gel for solid-phase extraction and preconcentration of Cr(III), Cd(II) and Pb(II) from waters, Journal of Hazardous Materials 157 (2008 ) 154–160

Furthermore, we aim to minimize the complexity of system components and the volume of required raw materials and as a consequence reduce both the fabrication cost and time, respectively.
According to the platform structure and the resistance of materials, openings can added in the supporting plate in order to lighten the overall system.
More precisely, we have established the BOM (Bill Of Materials) including the technical characteristics.
A number of the listed components that can be manufactured from commercially available materials with standard dimensions and optimisations for the system fabrication have been described.
In ETRI Journal, Vol. 28, Number 3, 2006.

Nowadays, the upswing of high dielectric permittivity materials is a standout amongst the most essential difficulties of new technologies.
They play an important role in the fabrication of high capacitance gadgets, supercapacitor electrode materials, and high frequency devices etc.[2, 3].
Acknowledgments We acknowledge for fellowship grants under Board of research in Nuclear Science (BRNS), Mumbai with Sanction No.:37(3)/14/19/2014-BRNS/2157 dated 22.12.2014.
Cava, Dielectric materials for applications in microwave communications, J.
Khirouni, High dielectric constant and relaxor behavior in La0.5Sr0.25Na0.05Mn0.8Ti0.2O3 manganite, Journal of Alloys and compounds. 767 (2018) 456-463

Thermal characteristics and dimensions of used materials are listed below in Fig. 2 – Fig. 4.
Examined composition Heat flux into and from individual materials is observed during the simulation.
LO1408 “AdMaS UP – Advanced Building Materials, Structures and Technologies” and specific research at Brno University of Technology reg. no.
ASHRAE journal, 2002, 44.7: 19
Science and Engineering 2015, ISSN 1662-7482, ISBN 978-3-03835-542-7, Trans Tech Publications, Płock, 2015 [14] O.

Theoretically, there are many ways to convert materials of hydrocarbon based into alternative energy.
As previously mentioned, there are numerous components in the pyrolysis vapor of materials based on hydrocarbons.
Raw materials that can be used to produce liquid smoke can be of wood species, palm, coconut shell or sawdust wood, and also plastic waste.
Manikanta, Conversion of waste plastic to fuel products, Materials today proceedings 3(8) (2020) 5190-5195. doi.org/10.1016/j.matpr. 2020.02.880 [3] Z.
Tambunan, Thermal Energy Storage System from Household Wastes Combustion: System Design and Parameter Study, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 80 (2021) 115-126. https://doi.org/10.37934/arfmts.80.2.115126 [8] Y.

Preparation and Properties of Ultra-fine Grain Medium-carbon Steel Based On Warm Deformation Jianmin Wanga, Yan Zhaob, Kesheng Chengc, Li Wand School of Material Science and Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China ajmwang@ujs.edu.cn, b542496459@qq.com, c478960475@qq.com, d766034995@qq.com Key words: Martensite, Ultra-fine grain, Severe plastic deformation, Warm deformation, Temper Abstract.
Introduction The most effective and most straightforward way to acquire steel and iron materials with high strength, high toughness and low brittle transition temperature is grain refinement.1-4 In terms of single severe plastic deformation process, special deformation process and forming equipment are required, and it is difficult to transform materials into ultra-fine grain microstructures and realize composition uniformity of materials.5 In this paper, combining phase transformation with deformation, a new preparation process of ultra-fine grain medium-carbon steel is proposed, namely warm deformation of quenched steel after tempering.
Test material and method The hot-rolled steel 1045 bar was chosen as the test material, of which the size was φ10mm × 25mm.
[2] Ueji R, Tsuji N, Minamino Y, et al.: ‘Effect of rolling reduction on ultrafine grained and structure and mechanical properties of low-carbon steel thermomechanically processed from martensite starting structure’, Science and Technology of Advanced Materials, 2004, 5, (1/2), 153～162
[3] Huang Y D, Yang W Y, Sun Z Q: ‘Formation of ultrafine grained ferrite in low carbon steel by heavy deformation in ferrite or dual phase region’, Journal of materials processing Technology, 2003, 134, (1), 19～25

School Of Materials Science And Engineering, Tsinghua University, Beijing 100084, China a chengr@tsinghua.edu.cn Keywords: Semi-rigid foam;Polyurethane;Polyether polyols;Isocyanate index Abstract:Semi-rigid polyurethane foam to soften the instrument panel has a lightweight, impact and energy absorption performance, while improving the texture of the surface of the instrument panel.
With the rapid development of polyurethane materials automotive and electronics industries to make their applications continue to expand.
Experimental materials and equipment .
Polyether polyols 330N, 3630, isocyanates MDI, Sanya ethylene diamine, stannous octoate (Yi-polymer materials Co., Ltd.) triethanolamine Jiahua Chemical Co., deionized water (laboratory-made) Experimental design According to a large number of literature references and projections, prepared a sample recipe trial foaming.
Reference [1] Lee C S, Ooi T L, Chuah C H, et al.Journal of the American Oil Chemists' Society Vol.84(2007),p. 1161

Experimental 2.1 Raw materials The cement used is commercially available normal Portland cement from Huaxin cement factory in china.
The specific characteristics of raw materials are shown in Table 1.
Construction and Building Materials, 2013(38):1204-1210
Research of polyocarboxy acid water-reducer with modified polyether and its effect on concrete's workability [J].Advanced Materials Research, 2011, 250:2032-2035
Cement Science and Concrete Technology, 1999(53):7-12

Introduction In 1992, Mobil (R & D) scientists disclosed synthesis of a new family of mesoporous molecular sieve materials known as M41S.
Materials and Methods Si-MCM-41 was synthesized at 100 oC for 8-days as reported earlier [8].
A hybrid material is developed exhibiting amine groups in its structural framework.
Pan, CO2 adsorption properties and thermal stability of different amine-impregnated MCM-41 materials, J.
Yusup, Effect of polyethylenimine loading on the physicochemical properties of amine-functionalized Si-MCM-41, Malaysian Journal of Microscopy, 8 (2012) 22-27

Test profiles Test materials Use P.O42.5 ordinary Portland cement, spherical shale ceramsite is mixture particle size, natural river sand, and bulk density is 1570 kg / m3, which belongs to middle sand, II size.
Experimental design Experimental equipment: JYS-2000 digital display type building materials pressure test machine Mix design: experimental materials are as described above, in order to study on the difference of water cement ratio’s influence on shale ceramsite concrete strength, use pre-wetting treatment for 24h to eliminate the influence of aggregate ceramsite absorbing water, use six different water cement ratio of 0.30,0.33,0.36,0.4,0.45 and 0.5, aggregate are mixed size which are between10 and 26mm, each casting 9 standard cubes with its size of 150mm * 150mm * 150mm, maintain 7,28,56 days in standard condition. specific mixture ratios are shown in table 1.
Journal of building materials.(2004), in7 volumes
[5]Yang, Weijun; Yang, Yongda; Yang, Yi: Experimental study on frost resistance of the shale ceramsite concrete, Applied Mechanics and Materials, v 117-119, p 1754-1758,( 2012)
Advanced Materials Research, v 374-377, p1434-1437, (2012).