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Online since: March 2021
Authors: Malgorzata Ulewicz, Anna Zawada
Building ceramics are products with a porous structure and absorbability up to 22%, and it includes all types of bricks, ceramic and reinforced concrete lintels, roof tiles, roof ridges and drainage pipes.
ISBN:9781119242444 [3] Abdrakhimova E S and Abdrakhimov V Z 2012, Characterization of a ceramic composite material based on beidellite clay and ash and slag waste, Solid Fuel Chemistry 46, 185-190
[13] Latosińska J, Orman Ł and Norbert R 2011, Waste materials for the production of ceramics, Structure & Environment 3, 49-53
Online since: August 2020
Authors: Mariela Elgegren, Alonso Donaryre, Betty Galaretta, Javier Nakamatsu, Suyeon Kim
Universitaria 1801, Lima 32, Peru 2Department of Science, Chemistry Division, Pontificia Universidad Católica del Perú PUCP, Av.
In the skin structure, epidermis is the relatively thin, tough, outer layer of the skin.
The thickness of AL membranes were varied depending on 2-D and 3-D structures, 26 ± 0.8 and 43 ± 7.9 µm, respectively.
Online since: May 2021
Authors: Ra'ba'ah Syahidah Azis, Hasfalina Che Man, Nurshahiera Rosdi, Ismayadi Ismail, Syazana Sulaiman
The stiff and sharp narrow peaks indicate high crystallinity structure suggesting that Fe3O4 was well-crystallized [11,13].
Casillas, Effect of the polymeric coating over Fe3O4 particles used for magnetic separation, Open Chemistry 8(5) (2014) 1041-1046
Şenel, Fluorescence and magnetic properties of hydrogels containing Fe3O4 nanoparticles, Journal of Molecular Structure 1037 (2013) 361-366.
Online since: July 2020
Authors: Muthia Elma, Amalia Enggar Pratiwi, Aulia Rahma, Erdina Lulu Atika Rampun, Aptar E. Lestari, Sadidan Rabiah
The evolution of chemical structure, particularly the effect loading on the silanol to siloxane transition of the calcined silica matrices was analysed by the FTIR-ATR technique.
These comparisons shown the membrane that fabricated in this work also has a good structures and performances that promising to use further in water desalination.
Jeffrey, Sol Gel Science: The Physics and Chemistry of Sol Gel Processing, New York: Academic Press, Inc, 1990
Online since: August 2022
Authors: Tri Joko Raharjo, Deni Pranowo, Lisa Eka Yuni Rahayu
Encapsulation of Lipase Enzyme in Silica Gel Matrix from Rice Husk Ash and Transesterification Reaction Activity Test on Palm Oil Lisa Eka Yuni Rahayua, Deni Pranowob*, Tri Joko Raharjoc Chemistry Department, Faculty of Mathematics and Natural Sciences, UGM Sekip Utara PO Box Bls. 21 Yogyakarta 55281, Special Region of Yogyakarta, Indonesia alisa.eka@mail.ugm.ac.id, bmaspranowo@ugm.ac.id, ctrijr_mipa@ugm.ac.id Keywords: encapsulation, lipase enzyme, rice husk, silica gel, transesterification Abstract.
This is because the greater amount of methanol which is a reactant as well as an organic solvent will be: act as a specific inhibitor; change the bulk properties of solvents such as dielectric constant, polarity, and hydrophobicity; or change the structure of the lipase enzyme [19], so that the lipase activity decreases.
Rao, Lipase in aqueous-polar organic solvents:Activity, structure, and stability, Protein Sci., 22 (2013) 904-915
Online since: December 2016
Authors: Maris Puke, Prans Brazdausks, Aivars Zhurinsh, Janis Rizhikovs, Aigars Paze, Ance Plavniece
Evaluation of Equilibrium Moisture Content and Chemical Composition in Torrefied Birch Wood Prans Brazdausks1, a, *, Janis Rizhikovs1, b, Aigars Paze1, c, Aivars Zhurinsh1, d, Maris Puke1, e, Ance Plavniece1, f 1Latvian State Institute of Wood Chemistry, Riga, Dzerbenes street 27-345, Latvia, LV-1006 aprans.brazdausks@gmail.com, bj.rizikovs@edi.lv, caigars.paze@gmail.com, daivarsz@edi.lv, em.puke@edi.lv, fance.plavniece@inbox.lv Keywords: Birch wood, Torrefaction, Monosaccharides, Moisture sorption, Bioenergy.
One of them is that the hemicelluloses, cellulose, and lignin of lignocellulosic biomass change its structure during the torrefaction process.
The sharply increased content of fixed carbon yield in the torrefied birch wood shavings and also higher heating value at severe torrefaction temperatures can be explained by the fact that carbonaceous material begins to form within the wood polymers structures during the heat treatment in temperatures range of 240-300 °C [17,18].
Online since: March 2022
Authors: Aizi Nor Mazila Ramli, Prakash Bhuyar, Natanamurugaraj Govindan, Yuwalee Unpaprom, Rameshprabu Ramaraj, Marlen Trejo
Starch granules: structure and biosynthesis.
Analytical chemistry, 31(3), 426-428
Modulation of the digestibility and multi-scale structure of cassava starch by controlling the cassava growth period.
Online since: February 2013
Authors: Ting Lin Huang, Chen Li, Cheng Li, Wen Jie He, Zhi Wei Li
Method and process.The specific process of the comprehensive evaluation for comparison of analytic hierarchy model are as follows: (1) To establish a hierarchy model, determine the optimal technology, and the numerous evaluation indicators shall be divided into "efficiency indicators" and "cost index", and to establish sub-target layer "efficiency X" and "cost of C", the model structure as shown in Figure 6 (the letters in which is as for index number), the meanings of the model represent in the middle-layer indicators is as shown in table 2.
Fig. 6 Water purification technology contrast model structure chart Table. 2 The implication of each index in model intermediate layer Name of index Code Meanings Social efficiency X1 To provide users with more water, reduce the waste of water resources, here refers to the water production rate of the system Technology efficiency X2 Technology maturity, resistance to impact load, running stability, technology complexity Environmental efficiency X3 maximize the environmental efficiency, which requires the most strong efficiency of technology for pollutant removal Infrastructure investment V1 Construction expenses required by completing the technology system, together with the equipment and installation charges Operating cost V2 The total pharmaceutical, electricity, depreciation costs, labor costs, maintenance costs and other expenses Occupation of area V3 the area of which covered by the technology system, indirectly reflect the land acquisition costs (2) According to the index affiliations
,Elimelech Menachem.Effect of solution chemistry on the surface charge of polymeric reverse osmosis and nanofiltration membranes.Journal of Membrane Science,1996,119(2):253-268 [7] Lin Bin,Zeng Cui-lin,Xiang Mei-zhou.Evaluation of urban water safrty based on analytic hierarchy proess[J].Journal of Zhejiang University of Science and Technology,2012,24(1):59-63
Online since: February 2021
Authors: R.Kh. Dadashev, R.A. Kutuev
The authors explain the emergence of these peculiarities by the eutectic structure influence on the ST isotherms and the clusters formation on the surface.
The research in paper [15], based on the analysis of adsorption phenomena, proves that the features on the ST isotherms and the ST temperature coefficient in this system are due to adsorption processes rather than the eutectic structure impact.
Zdravomyslov M.V., Pliushchenko R.V., Sardlishvili A.V., Surface tension of indium-lead alloys Journal of Physical Chemistry, 71(1), (197), 129-132
Online since: April 2022
Authors: Oluwabunmi Pamilerin Abioye, Ojo Sunday Isaac Fayomi, Roland Tolulope Loto
Fig. 3 shows the SEM/EDS structure of the Zn-ZnO-M. undulatus scales nanoparticulate coatings done at 25 minutes.
Materials Chemistry and Physics, 1,87 (2004) 67-74
Wypych, Nanocomposites: synthesis, structure, properties and new application opportunities.