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Relevant bibliographies by topics / Hydroxy groups

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Academic literature on the topic 'Hydroxy groups'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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Journal articles on the topic "Hydroxy groups"

1

S., GOPALAKRISHNAN, NEELAKANIAN S., and V. RAMAN P. "Visible Absorption Spectra of Anthraquinones : Use of Shift Reagents in Structure Determination." Journal of Indian Chemical Society Vol. 67, May 1990 (1990): 390–93. https://doi.org/10.5281/zenodo.6163405.

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Department of Chemistry, Madurai Kamaraj University Post-Graduate Extension Centre, Palayamkottai-627 002 Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai-625 021 <em>Manuscript received 13 July 1989, accepted 21 November 1989</em> A careful analysis of the bathochromic shifts induced by the usual shift reagents on the 'last visible band' (LVB) of the visible absorption spectra of twentysix hydroxyanthraquinones has revealed the usefulness of these shift reagents in the allocation of the hydroxyl groups in these compounds. Empirica

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Ivashkiv, Ostap, Jacek Namiesnik, Olena Shyshchak, Igor Polyuzhyn, and Michael Bratychak. "Synthesis and Properties of Oligomers with Hydroxy End-Groups." Chemistry & Chemical Technology 10, no. 4s (2016): 587–94. http://dx.doi.org/10.23939/chcht10.04si.587.

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Methods of oligomers (polymers) with hydroxy end-groups obtaining are examined. The synthesis of hydroxy-containing oligomers based on epoxy resins is of special attention. The molecules of mentioned oligomers apart from free primary and secondary hydroxy groups contain epoxy, peroxy, carboxy or acrylic groups.

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Sousa, Andreia F., Alessandro Gandini, Armando J. D. Silvestre, and Carlos Pascoal Neto. "Determination of the Hydroxy and Carboxylic Acid Groups in Natural Complex Mixtures of Hydroxy Fatty Acids by 1H Nuclear Magnetic Resonance Spectroscopy." Applied Spectroscopy 63, no. 8 (2009): 873–78. http://dx.doi.org/10.1366/000370209788964557.

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The use of trichloroacetyl isocyanate (TAI) to mark both hydroxyl and carboxyl groups borne by the hydrolysis or methanolysis of suberin fragments (a complex mixture of hydroxy fatty acids), allowed the quantitative assessment of the ratio between carboxyl and hydroxy groups, as well as the ratio between primary and secondary hydroxy groups, to be carried out reliably by 1H nuclear magnetic resonance (NMR) spectroscopy. All the samples thus analyzed displayed an excess of CO2H (or CO2CH3) functions with respect to the OH counterparts, albeit to a variable extent, depending on the procedure ado

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Russell, V. A., and M. D. Ward. "Solid-state structure of a layered hydrogen-bonded salt: guanidinium 5-benzoyl-4-hydroxy-2-methoxybenzenesulfonate methanol solvate." Acta Crystallographica Section B Structural Science 52, no. 1 (1996): 209–14. http://dx.doi.org/10.1107/s0108768195009980.

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Guanidinium 5-benzoyl-4-hydroxy-2-methoxybenzene-sulfonate methanol solvate [C(NH2)3 +.(C14H11O3)SO3 −.CH3OH] crystallizes into a layered structure containing a two-dimensional hydrogen-bonded network typical of guanidinium alkane- and arenesulfonates. All six guanidinium protons and six sulfonate oxygen lone-pair acceptors participate in hydrogen bonding to form nearly planar pseudohexagonal hydrogen-bonded sheets, which can be viewed as parallel connected hydrogen-bonded ribbons. The 5-benzoyl-4-hydroxy-2-methoxybenzene groups are oriented to the same side of each ribbon, but the orientation

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Stanchev, Stancho, Cäcilia Maichle-Mössmer, and Ilia Manolov. "Synthesis, Structure and Acid-Base Behaviour of Some 4-Hydroxycoumarin Derivatives." Zeitschrift für Naturforschung B 62, no. 5 (2007): 737–41. http://dx.doi.org/10.1515/znb-2007-0519.

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Abstract The compound 3,3′-[(4-hydroxy-3-methoxy-5-nitrophenyl)methylene]-bis(4-hydroxy-2H-1- benzopyran-2-one) (1) crystallizes in the monoclinic system, space group P21/n, with cell constants a = 16.859(4), b = 6.1624(15), c = 25.164(4) Å , β = 98.019(19)°. The two 4-hydroxycoumarin fragments are intramolecularly hydrogen-bonded between hydroxyl and carbonyl groups. The pH-dependent color changes of 4-hydroxycoumarin derivatives were studied by means of potentiometric and spectrophotometric titration. On the basis of the results obtained, the use of 3,3′-[(4-hydroxy-3- methoxy-5-nitrophenyl)

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Xu, Xing-You, Tong-Tao Xu, Shuai-Shuai Ni, Jian Gao, and Da-Qi Wang. "Bis{2-[1-(benzylimino)ethyl]-5-methoxyphenol}dichlorozinc(II)." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): m1548—m1549. http://dx.doi.org/10.1107/s1600536806021829.

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The title complex, [ZnCl2(C16H17NO2)2], displays a distorted tetrahedral coordination geometry around the ZnII ion. The Schiff base inner salt, (benzylimino)ethyl-5-methoxyphenol, coordinates in a monodentate manner to the ZnII ion via the deprotonated hydroxy groups. The protonated imino groups form intramolecular hydrogen bonds with the deprotonated hydroxyl groups of the same Schiff base ligand.

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Kozmík, Václav, та Jaroslav Paleček. "Synthetic Analogues of Prostaglandins F2α and E2". Collection of Czechoslovak Chemical Communications 59, № 1 (1994): 138–48. http://dx.doi.org/10.1135/cccc19940138.

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The synthesis of new derivatives of prostaglandins F2α and E2 XIIa,b - XVa,b and XXa,b - XXIIIa,b containing the furan or thiophene nucleus in the upper chain has been accomplished starting from [3aα,4α,5β,6aα]-(±)-hexahydro-5-hydroxy-4-((E)-(3α)-hydroxy-1-octenyl)-2H-cyclopenta[b]furan-2-one (Ia) and [3aα,4α,5β,6aα]-(±)-hexahydro-5-hydroxy-4-[4-(3-chlorophenoxy)-(3α)-hydroxy-1-butenyl]cyclopenta[b]furan-2-one (Ib). The diols Ia and Ib have been converted into the above-mentioned analogues of prostaglandins F2α and E2 by protecting the hydroxyl groups, subsequent reduction and Wittig reaction

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Kasal, Alexander, та Jaroslav Zajíček. "Spontaneous transannular reaction in Δ9-unsaturated A-homo-B,19-dinorsteroids". Collection of Czechoslovak Chemical Communications 54, № 5 (1989): 1327–35. http://dx.doi.org/10.1135/cccc19891327.

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The epoxidation of 3β-hydroxy derivatives of Δ9-unsaturated A-homo-B,19-dinorsteroids (type I-IV) proceeds with spontaneous participation of the 3β-hydroxyl under formation of transannular 9α-hydroxy-3β,10β-oxides IX, X, XV and XVII. Epoxidation of the corresponding esters V-VIII affords predominantly 9α,10α-epoxides XIV, XVI, XVIII and XIX which, after hydrolysis of the ester groups are also converted into the transannular 3β,10β-oxides of the type IX.

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Doden, Heidi L., and Jason M. Ridlon. "Microbial Hydroxysteroid Dehydrogenases: From Alpha to Omega." Microorganisms 9, no. 3 (2021): 469. http://dx.doi.org/10.3390/microorganisms9030469.

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Bile acids (BAs) and glucocorticoids are steroid hormones derived from cholesterol that are important signaling molecules in humans and other vertebrates. Hydroxysteroid dehydrogenases (HSDHs) are encoded both by the host and by their resident gut microbiota, and they reversibly convert steroid hydroxyl groups to keto groups. Pairs of HSDHs can reversibly epimerize steroids from α-hydroxy conformations to β-hydroxy, or β-hydroxy to ω-hydroxy in the case of ω-muricholic acid. These reactions often result in products with drastically different physicochemical properties than their precursors, wh

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Hu, Thomas Q., Graham R. Cairns, and Brian R. James. "Removal of Phenolic Hydroxyl Groups in Lignin Model Compounds and Its Effect on Photostability." Holzforschung 54, no. 2 (2000): 127–32. http://dx.doi.org/10.1515/hf.2000.022.

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Summary The phenolic hydroxyl groups in the lignin model compounds, 2-methoxy-4-propylphenol and 4-hydroxy-3-methoxyacetophenone, were removed by first converting the hydroxyl groups to the trifluoromethanesulfonates (triflates) and then cleaving the triflate substituents via catalytic hydrogen transfer. The products, 1-methoxy-3-propylbenzene and 3-methoxyacetophenone, were characterized by 1H and 13C NMR, mass spectrometry and elemental analyses. The effect of the removal of the phenolic groups on the photostability of the model compounds was evaluated by impregnating the compounds into What

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Dissertations / Theses on the topic "Hydroxy groups"

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Formosa, Joseph S. "Thermal degradation of polymer blends containing the poly (hydroxy, ether of bisphenol-A) /." Online version of thesis, 1987. http://hdl.handle.net/1850/10289.

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Mukiza, Janvier. "Rhenium complexes with pontentially multidentate ligands containing the amino, imino, hydroxy and thiol groups." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/12308.

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The chemistry of rhenium has received considerable interest due to its versatility in various catalytic applications, fixation and especially the potential use of 186Re and 188Re radionuclides in nuclear medicine. This study investigates the synthesis and characterisation of rhenium complexes with potentially multidentate ligands containing the amino, imino, hydroxyl and thiol groups. It reports new rhenium complexes in the +1, +3, +4 and +5 oxidation states, which display structural diversity, from monomers to ligand-bridged dimers as well as metal-metal multiply bonded dimers. The reaction o

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Vernia, Jennifer E. "Synthesis, Structure and Photochemistry of Fe(III) Complexes with Tripodal Amine Chelates Containing a-hydroxy Acid and a-hydoxy Amide Groups." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1491559655356793.

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Bayliss, M. A. J. "Fluorescent derivatising reagents for hydroxyl groups." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304787.

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Kriegel, Robert Michael. "Polyesters with pendant hydroxyl groups as barrier plastics." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/27108.

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Lee, W. S. "The synthesis of polyesters containing free hydroxyl groups." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234309.

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Toda, Mitsuaki. "Complement activation on surfaces carrying hydroxyl or amino groups." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120910.

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Cotton, Charles E. "A computational study of thiocyanate based laser flash photolysis reporters." Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1348346.

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Radical chemistry has always been a very active area of research. This is due to the fact that radicals are both very numerous in variety and very reactive. A radical is any chemical species that possesses one or more unpaired electrons. These unpaired electrons usually lead to the extremely reactive characteristics of the chemical species. This reactivity can be beneficial; this is true in the case of polymer chemistry. For instance, some plastics are synthesized through a radical chain reaction. In addition, radicals are used in the synthesis of novel organic compounds with the goal of creat

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Awheda, I. M. "Applications for the activation of hydroxyl groups to nucleophilic attack." Thesis, Nottingham Trent University, 2012. http://irep.ntu.ac.uk/id/eprint/13/.

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This thesis investigates the applications of the activation of hydroxyl groups to nucleophilic attack within three key areas: Cyclic five-membered thionocarbamates bearing a N-Boc group undergo ring opening reactions at the 5-C with soft nucleophiles such as thiophenolate, pyridine-2-thiolate and potassium thioacetate. Hard nucleophiles react at the thiocarbonyl group followed by a variety of successive reactions involving breakage of C-N ( e. g. with n-BuLi) or C-O bond (e. g. with PhLi). Treatment with iodide under microwave conditions led to a rearrangement to a thiazolidin-2-one. Two appro

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Parker, D. C. "The dimethyl(phenyl)silyl group : A masked hydroxyl group for organic synthesis." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372282.

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Books on the topic "Hydroxy groups"

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Patai, Saul, ed. Hydroxyl, Ether and Peroxide Groups (1993). John Wiley & Sons, Inc., 1993. http://dx.doi.org/10.1002/9780470772515.

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Bayliss, Mark A. J. Fluorescent derivatizing reagents for hydroxyl groups. University of East Anglia, 1988.

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3

United States. National Aeronautics and Space Administration., ed. Spectroscopic study of combustion diagnostics on hydroxyl radicals: Final research report. The University of Alabama in Huntsville, 1990.

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Saul, Patai, ed. The chemistry of hydroxyl, ether and peroxide groups. Wiley, 1993.

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5

United States. Environmental Protection Agency, ed. The stability of tropospheric OH during ice ages, inter-glacial epochs, and modern times. U.S. Environmental Protection Agency, 1992.

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United States. Environmental Protection Agency., ed. The stability of tropospheric OH during ice ages, inter-glacial epochs, and modern times. U.S. Environmental Protection Agency, 1992.

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7

Porter, Edward S. Kinetics and mechanisms for the atmospheric oxidation of diethers and hydroxyethers. University College Dublin, 1997.

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Lynch, Carmel C. Selective alkylation of the hydroxyl groups of mono- and di-saccarides. University College Dublin, 1998.

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R, Arnts Robert, and Atmospheric Sciences Research Laboratory, eds. Review of the UCR protocol for determination of OH rate constants with VOCs and its applicability to predict photochemical ozone production: Project summary. U.S. Environmental Protection Agency, Atmospheric Sciences Research Laboratory, 1988.

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H, Phillips Donald, and Langley Research Center, eds. An ab initio investigation of possible intermediates in the reaction of hydroxy and hydroperoxyl radicals. National Aeronautics and Space Administration, Langley Research Center, 1985.

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Book chapters on the topic "Hydroxy groups"

1

Ogawa, Jun, Makoto Hibi, and Shigenobu Kishino. "Biocatalytic Introduction of Chiral Hydroxy Groups using Oxygenases and Hydratases." In Green Biocatalysis. John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781118828083.ch22.

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Meguro, Yasuhiro, Masaru Enomoto, and Shigefumi Kuwahara. "Total Synthesis of Amycolamicin." In Modern Natural Product Synthesis. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1619-7_2.

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AbstractAmycolamicin (also called kibdelomycin) produced by two species of soil actinomycetes is a potent antibiotic against a broad range of drug-resistant bacteria with a novel binding mode to bacterial type II DNA topoisomerases and with no cross-resistance to existing antibacterial agents. The unique hybrid molecular architecture of amycolamicin attracted interest of many synthetic organic chemists and three total syntheses have been reported so far. In this chapter, we describe our total synthesis of amycolamicin in detail, which features a nucleophilic addition of a vinyllithiun reagent to an α-siloxy-β-alkoxy ketone to afford a tertiary alcohol as a single diastereomer, a highly diastereoselective intramolecular Diels–Alder reaction of a tetraenal with an unprotected hydroxy group to construct a trans-decalin unit incorporated in amycolamicin, an exclusively stereoconvergent N-acylation of an anomeric N-glycoside mixture bearing a cis-fused bicyclic carbonate system, and the exploitation of the cyclic carbonate as a vicinal diol protecting group and also as a masked β-hydroxy carbamate structure. Additionally, two other total syntheses accomplished by the Li and Baran groups as well as syntheses of partial structures of amycolamicin hitherto reported are also outlined in brief.

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Eisenbrand, G., and C. Janzowski. "Potential Mechanism of Action of Nitrosamines with Hydroxy, Oxo, or Carboxy Groups." In Nitrosamines and RelatedN-Nitroso Compounds. American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1994-0553.ch015.

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Santaniello, Enzo, Patrizia Ferraboschiand, and Shahrzad Reza-Elahi. "Lipase-Catalyzed Regio-and Stereoselective Acylation of Hydroxy Groups in Steroid Side Chains." In Biocatalysis. Springer Vienna, 2000. http://dx.doi.org/10.1007/978-3-7091-6310-8_5.

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Kloprogge, Jacob. "The Kaolin Group: Hydroxyl Groups." In Spectroscopic Methods in the Study of Kaolin Minerals and Their Modifications. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-02373-7_3.

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Fujino, Haruka, and Masayuki Inoue. "Convergent Total Synthesis of Hikizimycin: Development of New Radical-Based and Protective Group Strategies." In Modern Natural Product Synthesis. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1619-7_6.

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AbstractHikizimycin (1) is an architecturally complex nucleoside antibiotic with potent anthelmintic and antibacterial activities. Its unique 4-amino-4-deoxyundecose core (hikosamine) includes a C1–C11 linear chain with ten contiguous stereocenters flanked with nucleobase (cytosine) and 3-amino-3-deoxyglucose (kanosamine) at the C1 and C6O positions, respectively. These structural features make its chemical construction exceptionally challenging. This chapter describes our successful efforts leading to convergent total synthesis of 1 from three hexose derivatives (5b, 11-β, and 12) and bis-TMS-cytosine 6. First, efficient one-step construction of hikosamine core 7-α was achieved by devising a novel radical coupling reaction between α-alkoxy telluride 10d-α and aldehyde 8c, which were derivatized from 11-β and 12, respectively. At this stage, the importance of the specific protective group pattern of 10d-α and 8c was revealed for stereoselective C5(sp3)–C6(sp3) coupling. By taking advantage of strategically introduced protective groups, 6 and 5b were regio- and stereoselectively installed on 7-α to produce protected hikizimycin 36b. Finally, the three amino and ten hydroxy groups of 36b were detached in a single step to furnish 1. Consequently, the newly developed radical-based and protective group strategies allowed us to achieve total synthesis of 1 from 11-β in 17 steps.

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Cleaves, Henderson James. "Hydroxyl Group." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_764-4.

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Cleaves, Henderson James. "Hydroxyl Group." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_764.

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Cleaves, Henderson James. "Hydroxyl Group." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_764.

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Cleaves, Henderson James. "Hydroxyl Group." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_764.

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Conference papers on the topic "Hydroxy groups"

1

Tsuri, S., K. Takao, and K. Mochizuki. "Effect of Primer Composition on Cathodic Disbonding Resistance and Adhesion Durability of Three Layer Polyethylene Coated Steel Pipe." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98497.

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Abstract The cathodic disbonding resistance and adhesion durability of three layer polyethylene coated steel pipe were studied from the viewpoint of water permeability and the water uptake of dicyandiamide-imidazole cured epoxy primer. The reaction between the epoxy resin and dicyandiamide generates hydroxyl groups. Therefore, as the content of dicyandiamide increased, the water uptake of the primer increased and the water diffusion rate of the primer decreased because of the strong interaction between hydroxyl reaction product and water molecules. Excellent cathodic disbonding resistance and

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Singh, Himanshu, and Sumit Sharma. "Designing Corrosion Inhibitors with High Aqueous Solubility and Low Tendency towards Micellization: a Molecular Dynamics Study." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-15079.

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Abstract Two desirable characteristics of corrosion inhibitors is their high aqueous solubility and their low tendency to micellize. In this work, we propose that addition of a polar moiety to the terminal end of the alkyl tail of the quaternary ammonium-based corrosion inhibitors improves both these characteristics. Our molecular simulation results show that corrosion inhibitors with a hydroxyl group as the terminal group of alkyl tail results in three orders of magnitude increase in the aqueous solubility and also significantly decreases the micellization tendency. These results are signific

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Wu, Bichen, and Deming Zhao. "Effects of hydroxyl groups on the properties of polybenzoxazoles (pbos): synthesis of trans-HPBO fibers and trans-2,5DHPBO fibers." In 5th International Conference on Mechanical Engineering and Materials (ICMEM 2024), edited by Jinyang Xu and Gupta Manoj. SPIE, 2025. https://doi.org/10.1117/12.3060380.

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Ali, Nurdin, Syarizal Fonna, Yumaidi Saputra, and Joli Supardi. "Phytochemical Analysis and Antioxidant Properties of <i>Syzygium cumini </i>Fruit as a Corrosion Inhibitor." In The 2nd International Conferences on Applied Engineering, Science, Technology and Innovation. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-d9oud2.

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Syzygium cumini is a plant belonging to the Myrtaceae family and is widely used in medicine and food. However, its application in the engineering field is still very minimal, particularly as an anti-corrosion material. There are also limited studies on the quantitative screening of phytochemical and bioactivity of S. cumini. Therefore, this study aims to analyze the chemical compounds of S. cumini fruit as a corrosion inhibitor as well as determine total tannin (TTC) and flavonoid (TFC) content. The extraction process was carried out with a soxhlet extractor using 96% ethanol solvent. Characte

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Plotnichenko, Victor G., V. O. Sokolov, and Eugeni M. Dianov. "Hydroxy groups in high-purity glasses for fiber optics III: germanosilicate glasses." In Advances in Fiber Optics, edited by Eugeni M. Dianov. SPIE, 2000. http://dx.doi.org/10.1117/12.385655.

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Zapata-Romero, Gilberto A., Markus Doerr, and Martha C. Daza. "Lipase-catalyzed O-acylation of (RS)-propranolol is determined by the acyl group length." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol2020130.

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We employed a computational modeling approach to study the Michaelis complexes of (R)- and (S)-propranolol with serine-acylated Candida antarctica lipase B using four acyl groups: ethanoyl, butanoyl, octanoyl and hexadecanoyl. Our methodology involves sampling Michaelis complex conformations, first through ensemble docking using consensus scoring, and second by molecular dynamics simulations employing a quantum mechanics/molecular mechanics approach. The conformations are then categorized into two classes of near attack conformations, according to the distance of (a) the amino and (b) the hydr

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Stenflo, J., A.-K. öhlin, Å. Lundvall та B. Dahlback. "β-HYDROXY ASPARTIC ACID AND ft-HYDROXYASPARAGINE IN THEEGF-HOMOLOGY REGIONS OF PROTEIN C AND PROTEINS". У XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643995.

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The amino acid sequence has been determined for all of the vitamin K-dependent proteins and the gene structure is known for some of them. These findings have shown the proteins to consist of four clearly discernible domains, except protein S which has six domains. The protein domains seem to be coded on separate exons (Foster, D. C. et. al. 1985 Proc. Natl. Acad. Sci. USA 82,4673). The vitamin K-dependent γ-carboxyglutamic acid (Gla) containing domain isthe common structural denominator of the members of this protein family. In addition, all of these proteins except prothrombin contain domains

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Sakuma, Shunsuke, Yusuke Nakao, Tomoyasu Tanaka, and Akio Yonezu. "Evaluation of Fracture and Fatigue Properties of Graphene Oxide by Atomic Force Microscope and Molecular Dynamics Simulation." In ASME 2023 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/imece2023-113255.

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Abstract Graphene is a typical two-dimensional material and is expected to be a next-generation material for structural and functional applications, including weight reduction and miniaturization of high-tech structures and devices. However, graphene is difficult to be synthesized in large quantities, and its practical application has not been well advanced because graphene is very sensitive to defects, and defects significantly decreases its strength and fatigue life. Therefore, we focused on graphene oxide (GO), in which functional groups such as hydroxy and epoxy groups are bonded to graphe

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Cojocari, Sergiu, Dmitri Bilan, and Fliur Macaev. "Synthesis and structure of compounds obtained from the interaction of (+) 3-carene monoterpene with potassium permanganate." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab06.

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At present one of the main features of the chemistry of natural cyclopropanes is determined by the great diversity/variability of their structures and properties. However, the low content of most optically active cyclopropanes obtained from natural sources is a priority and requires the urgent development of readily applicable methods for synthesis from available natural substances, e.g. (+)-3-carene monoterpene 1. A distinctive structural feature of (+)-3-carene is the presence in its molecule of a bicyclic bridge system consisting of methylcyclohexane, 2,2dimethylcyclopropane moieties and a

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Dalli, Jesmond, Ana Rodriguez, Bernd Spur, and Charles Serhan. "Structure elucidation and biological evaluations of sulfido-conjugated specialized pro-resolving mediators." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/mqgv6628.

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Inflammatory diseases are characterized by unabated inflammation that leads tissue destruction resulting in malaise. Whilst much is known on the mechanism that perpetuate inflammation, less is known about the molecules and pathways that coordinate the termination of inflammation and facilitate the repair and regeneration of damaged tissues. To evaluate the potential contribution of essential fatty acid-derived mediators in coordinating this life saving response we interrogated inflammatory exudates obtained following self-limited inflammatory challenge. Using radio-isotope tracking we found th

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Reports on the topic "Hydroxy groups"

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Schwarz, J. A. The relationship between hydroxyl groups on oxide surfaces and the properties of supported metals. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/6566024.

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Olarte, Mariefel V., Sarah D. Burton, Marie Swita, Asanga B. Padmaperuma, Jack Ferrell, and Haoxi Ben. Determination of Hydroxyl Groups in Pyrolysis Bio-oils using 31P NMR: Laboratory Analytical Procedure (LAP). Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1241098.

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Schwarz, J. A. The relationship between hydroxyl groups on oxide surfaces and the properties of supported metals. Progress report, June 1, 1992--January 31, 1994. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10146189.

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Schwarz, J. A. The relationship between hydroxyl groups on oxide surfaces and the properties of supported metals. Progress report, June 1, 1992--December 31, 1992. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10148807.

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Abrahamson, Norman, Nicolas Kuehn, Zeynep Gulerce, et al. Update of the BC Hydro Subduction Ground-Motion Model using the NGA- Subduction Dataset. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2018. http://dx.doi.org/10.55461/oycd7434.

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An update to the BCHydro ground-motion model for subduction earthquakes has been developed using the 2018 PEER NGA-SUB dataset. The selected subset includes over 70,000 recordings from 1880 earthquakes. The update modifies the BCHydro model to include regional terms for the VS30 scaling, large distance (linear R) scaling, and constant terms, which is consistent with the regionalization approach used in the NGA-W2 ground-motion models. A total of six regions were considered: Cascadia, Central America, Japan, New Zealand, South America, and Taiwan. Region- independent terms are used for the smal

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Micetic, John S., and Alfred D. Beitelman. Performance Problems with Group II Hydro-Cracked Turbine Oils in Corps of Engineers Hydropower Facilities. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada428907.

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Busolo, Joy, Innocent Nzeyimana, Oliver Jones, Annette Huber-Lee, Eric Kemp-Benedict, and Brian Joyce. A water-resilient economy: hydro-macroeconomic and climate change analysis in Rwanda. Stockholm Environment Institute, 2023. http://dx.doi.org/10.51414/sei2023.021.

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Rwanda’s economy is inextricably linked to its water supply, with agriculture employing nearly 70% of its population and making up half of the country’s export revenue. It aspire to become an upper-middle-income country by 2035, and a high-income country by 2050. But rising temperatures and more prolonged dry spells threaten crop production and strain water supply. Rwanda’s Vision 2050 policy details the country’s long-term goals and provides the planning blueprint to guide Rwanda’s development. But such growth, coupled with climate change, will profoundly affect its water supply and demands.

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Adam, Alexandre, Saadane Rezaiguia, Romain Severac, and Michel Bouquey. Incorporation of aminoalcohols to tune the properties of polyurethane systems. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ps.1.

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It is common practice to incorporate low molecular weight molecules, known as chain extenders, to enhance the performance of polyurethane (PU) material. They usually increase the phase separation between the soft and hard domains, which has a significant impact on the density of hydrogen bonds. Aminoalcohols, molecules with both hydroxyl and amine functional groups, are important building blocks in the synthesis of pharmaceuticals but are also widely used in cosmetics or paints and coatings. Easily derived from abundant natural sources, such as amino acids, aminoalcohols align with the need fo

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de Klerk, Kyle, Neil Balchin, and Collin Zhuawu. Exploring the Renewable Energy Landscape in Least Developed Countries: Generation, Trade and Endowments. Commonwealth Secretariat, 2024. https://doi.org/10.14217/comsec.1131.

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This paper, the first of a two-part series, examines the renewable energy landscape in least developed countries (LDCs) and explores the scope to expand renewable energy generation and trade in these countries by maximising the potential of their renewable energy endowments. It begins with a detailed overview of existing renewable energy generation capacity across the group of LDCs, paying particular attention to Commonwealth LDC solar, wind, hydro and bioenergy generation. Thereafter, Section 3 examines the state of energy trade involving Commonwealth LDCs and explores opportunities for them

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Perdigão, Rui A. P. Triadic Flight Technologies. Synergistic Manifolds, 2024. http://dx.doi.org/10.46337/240307.

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A novel triadic suite of flight technologies is introduced by developing, articulating and integrating ground-effect, free amphibian flight and orbital flight capabilities into a triadic system-of-systems able to seamlessly operate across all three mobility paradigms. The triad is then implemented onto our new purpose-designed hydro-aerospace vehicle, propelled by latest-generation micro-reactors for industry-leading aerospace thrust, whilst providing long-range carbon-free flight mobility and autonomy. The vehicle structure and materials are further optimized for a seamless switch between sta

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