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AbstractAbstract
[en] As a result of the reaction of tryptophan with copper (II) chloride, a complex of copper tryptophan ate was obtained. The composition of the complex was studied by elemental, thermal, Χ-ray phase analysis, IR, and UV spectroscopy. The anti radical activity of the complex was studied on irradiated wheat seeds. It was revealed that the treatment of wheat seeds before irradiation with an aqueous solution of complex leads to normalization of the biosynthesis of photosynthetic pigments.
Primary Subject
Source
3 tabs.; 3 pics.; 10 refs.
Record Type
Journal Article
Journal
Journal of Radiation Researches; ISSN 2312-3001;
; v. 7(1); p. 11-16

Country of publication
AMINO ACIDS, AROMATICS, AZAARENES, AZOLES, CARBOXYLIC ACIDS, CHEMICAL ANALYSIS, ELEMENTS, GRAVIMETRIC ANALYSIS, HETEROCYCLIC ACIDS, HETEROCYCLIC COMPOUNDS, HYDROCARBONS, INDOLES, METALS, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, PYRROLES, QUANTITATIVE CHEMICAL ANALYSIS, THERMAL ANALYSIS, TRANSITION ELEMENTS
Reference NumberReference Number
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Long Den Nguyen; de Saint Simon, M.; Foex, M.; Coutures, J.P.; Gerdanian, P.
Proceedings of the tenth rare earth research conference, Carefree, Arizona, April 30--May 3, 19731973
Proceedings of the tenth rare earth research conference, Carefree, Arizona, April 30--May 3, 19731973
AbstractAbstract
No abstract available
Primary Subject
Source
Kevane, C.J.; Moeller, T. (eds.); Arizona State Univ., Tempe (USA); p. 1056-1067; 1973
Record Type
Report
Literature Type
Conference
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Country of publication
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AbstractAbstract
[en] Sugarcane bagasse was characterized by thermogravimetric analysis (TGA) with the different heating rates, and nitrogen carrier from 30 to 800℃. Through decreasing the sample's mass by temperature, the stage of thermal decomposition could be determined. Specifically, there were three stages of decomposition including moisture escape stage, decomposition of cellulose stage, hemicellulose and lignin decomposition stage. On the other hand, based on the results of TGA the activation energy of decomposition process was determined by the inverse of the Flynn-Wall-Ozawa (FWO) method and Kissinger-Akahira-Sunose (KAS) method. The calculated results were compared with the activation energy by the Coats-Redfern method and Criado method in order to find the kinetics of bagasse pyrolysis process. Accordingly, when the conversion of reaction was lower than 75 %, corresponding to the decomposing process of hemicellulose and cellulose, the thermal decomposing process of bagasse obeyed diffusion kinetics of model D2, D3 and D4. (author)
Primary Subject
Source
Available at Information Centre, VINATOM; 24 refs., 3 figs., 4 tabs.; Published by Vietnam Academy of Science and Technology
Record Type
Journal Article
Journal
Vietnam Journal of Chemistry (Print); ISSN 2525-2321;
; v. 57(5); p. 574-580

Country of publication
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AbstractAbstract
[en] Full text: The technical and economic assessment of process of thermo-chemical decomposition of biomass in the processes of transformation of it in power-consuming energy/carriers by the use of the concentrated gel of sun radiation, has been considered
Original Title
Tekhniko ehkonomicheskie aspekti termokhimicheskogo razlojeniya biomassi
Primary Subject
Source
Available in abstract form only, full text entered in this record; Translated from Russian
Record Type
Journal Article
Literature Type
Translation
Journal
Azerbaijan Chemical Journal; ISSN 0005-2531;
; v. 130(3); 3 p

Country of publication
Reference NumberReference Number
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Zinner, L.B.; Vicentini, G.
Sociedade Brasileira de Quimica, Rio de Janeiro, RJ (Brazil)1988
Sociedade Brasileira de Quimica, Rio de Janeiro, RJ (Brazil)1988
AbstractAbstract
[en] Published in summary form only
Original Title
Analise termica de compostos inorganicos
Primary Subject
Source
1988; 2 p; 4. National Symposium on Inorganic Chemistry; Rio de Janeiro, RJ (Brazil); 31 Aug - 2 Sep 1988
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
LanguageLanguage
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INIS VolumeINIS Volume
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AbstractAbstract
[en] The present investigation deals with the study of untreated and alkali treated natural fibers extracted from the stem of Catharanthus roseus. The physical, chemical, crystallinity, mechanical, wettability, thermal, and surface characteristics were analyzed for untreated and alkali treated Catharanthus roseus fibers (CRFs). The results showed that chemical treatment removed excess amorphous contents such as hemicellulose, lignin and wax contents thereby there was an enhancement in tensile strength, crystalline index, and surface roughness. The char residue upon thermogravimetric analysis got increased from 25.2% to 39.6% for untreated and alkali treated CRFs respectively. The alkali treated CRF showed lesser contact angle which proved its improved wettability in the liquid phase. Thus the improvement in the characteristics of the alkali treated CRF can make it useful for developing lightweight polymer composites. (paper)
Primary Subject
Secondary Subject
Source
Available from http://dx.doi.org/10.1088/2053-1591/ab22d9; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Materials Research Express (Online); ISSN 2053-1591;
; v. 6(8); [11 p.]

Country of publication
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AbstractAbstract
[en] In the present study, thermogravimetric analysis was used for investigation a bagasse pyrolysis. Multi-period models were applied for evaluation of kinetics parameter based on the TG curve. The decomposition bagasse process was undergone four periods via the breakdown of each different chemical component in a sample. The dehydration occurred below 170℃; hemicellulose primarily and cellulose partially decomposed in a range of 170 to 318℃ and cellulose continuously decomposed from 318 to 400 ℃. The temperature range of 400-700℃ for the last period showed the evidence of lignin decomposition. The study also identified activation energy constant (Ea), the pre-exponential factor (A) and reaction order (n) for each period of pyrolysis process. The dependence of the breakdown of the specific chemical bond on the pyrolysis temperature was also proven by FTIR spectrum analysis. (author)
Primary Subject
Source
Available at Information Centre, VINATOM; 23 refs., 5 figs., 3 tabs; Published by Vietnam Academy of Science and Technology
Record Type
Journal Article
Journal
Vietnam Journal of Chemistry (Print); ISSN 2525-2321;
; v. 57(1); p. 101-107

Country of publication
LanguageLanguage
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AbstractAbstract
[en] Full text: The new organic ligands -N-(5-clorasalicylidine)-β-athanol (HL'1), N(-5-bromosalicyliden)-β-alanine (H2L3), N(-2-hydroxy-5-bromobenzyl)-β-alanine (H2L4), N-(5-bromosalicylidene) qlycibe (H2L5) have been obtained. The new lanthanide complexes (Y, La,Ce,Nd,Sm,Er,Lu) with N-(2-hyroxy-5-brombenzyl)-β-alanine (H2L4) have been prepared and studied. The elemental analyses, IR-spectra and thermo gravimetric data point out on the following composition of the obtained compounds: Ln(L)(X)(H2O)n (where L=N-(2-hydroxy-5-brombenzil)-β-alanine (H2L4), X=CH3COO-, NO3-, Br-, n=3,4). IR spectra's indicate on bi- or polynyclear structure of complexes
Original Title
Kompleksi lantanidov (Y, La, Ce, Nd, Sm, Er, Yb, Lu) s N-(2-gidroksi-5-brombenzil) β-alaninom, H-2L4. (18-4)
Primary Subject
Source
Available in abstract form only, full text entered in this record; Translated from Russian
Record Type
Journal Article
Literature Type
Translation
Journal
Azerbajdzhanskij Khimicheskij Zhurnal; ISSN 0005-2531;
; v. 18(3); 4 p

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AbstractAbstract
[en] With the advancements of materials science and technology, organic materials found significant applications in aerospace industry. But under the orbital thermal and vacuum environment, organic materials can outgas and the outgassed products and induced environment often degraded performances of spacecraft or its subsystem. In this article, the typical impacts of outgassing environment on spacecraft are explained briefly. Then the outgassing theory, test method, identification of compounds and control measures were reviewed in detail. The need for transient and long-term outgassing model is discussed. The standard test methods of E595 and E1559 are compared. The promising new techniques such as infrared spectrometry and/or mass-spectrometry with thermogravimetric analysis is proposed for the identification of outgassed compounds. The vacuum bakeout and molecular absorber for outgassing control are reviewed and for the last more research work is needed. (paper)
Primary Subject
Source
AMRPT2019: International Conference on Advanced Material Research and Processing Technology; Wuhan (China); 19-21 Jul 2019; Available from http://dx.doi.org/10.1088/1757-899X/611/1/012071; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
IOP Conference Series. Materials Science and Engineering (Online); ISSN 1757-899X;
; v. 611(1); [8 p.]

Country of publication
Reference NumberReference Number
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Wang, Xinying; Lu, Xuebin; Zhang, Shuting, E-mail: wxysummerno.1@163.com, E-mail: lxb3779@yahoo.com.cn, E-mail: zhangst@tju.edu.cn2013
AbstractAbstract
[en] Highlights: ► A process combined pyrolysis and acid immersion was proposed to dispose waste LCDs. ► This process maximally recovered valuable resources while treating the waste LCDs. ► Valuable product was obtained by applying the pyrolysis of polarizing film from LCD. ► The indium recovery was optimized by using response surface methodology. ► A polynomial equation was obtained that well predicted the indium recovery process. -- Abstract: A process combined pyrolysis and acid immersion was proposed in this study to dispose the hazardous liquid crystal display (LCD) waste for recovering valuable resources. The thermogravimetric (TG) analysis and fixed bed pyrolysis were investigated for the polarizing film that was separated from LCD. The results suggested the liquid product mainly contained acids, esters and aromatics should be upgraded such as hydrotreating process before used as industrial feedstock or fuel source. The gaseous product mainly consisted of H2, CO, CO2 and CH4 can be used as a valuable fuel. The sulfuric acid immersion experiments were studied for recovering indium from the LCD glass after stripping the polarizing film. Central composite design (CCD) under response surface methodology (RSM) was used to optimize the acid immersion process and the results indicated the indium recovery can be fitted based on the actual value to a polynomial quadratic equation and the temperature was more essential factor than time and acid concentration in the studied ranges. The optimum processing condition was obtained with time 42.2 min, temperature 65.6 °C and acid concentration 0.6 mol/L. Under the optimal conditions, the indium recovery was close to 100%
Primary Subject
Source
S0304-3894(12)01161-2; Available from http://dx.doi.org/10.1016/j.jhazmat.2012.11.059; Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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