Academic literature on the topic 'Complexes de zinc'

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Journal articles on the topic "Complexes de zinc"

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Nabeshima, Tatsuya, Yusuke Chiba, Takashi Nakamura, and Ryota Matsuoka. "Synthesis and Functions of Oligomeric and Multidentate Dipyrrin Derivatives and their Complexes." Synlett 31, no. 17 (2020): 1663–80. http://dx.doi.org/10.1055/s-0040-1707155.

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The dipyrrin–metal complexes and especially the boron complex 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) have recently attracted considerable attention because of their interesting properties and possible applications. We have developed two unique and useful ways to extend versatility and usefulness of the dipyrrin complexes. The first one is the linear and macrocyclic oligomerization of the BODIPY units. These arrangements of the B–F moieties of the oligomerized BODIPY units provide sophisticated functions, such as unique recognition ability toward cationic guest, associated with cha
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Schäfer, Sebastian, Ralf Köppe, Michael T. Gamer, and Peter W. Roesky. "Zinc–silylene complexes." Chemical Communications 50, no. 77 (2014): 11401. http://dx.doi.org/10.1039/c4cc04714a.

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Nieuwenhuizen, Peter J. "Zinc accelerator complexes." Applied Catalysis A: General 207, no. 1-2 (2001): 55–68. http://dx.doi.org/10.1016/s0926-860x(00)00613-x.

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Midlej, Victor, Felipe Rubim, Wilmer Villarreal, et al. "Zinc-clotrimazole complexes are effective against Trichomonas vaginalis." Parasitology 146, no. 9 (2019): 1206–16. http://dx.doi.org/10.1017/s003118201900043x.

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AbstractTrichomonas vaginalis is a protozoan parasite that causes trichomoniasis in humans, the most prevalent non-viral sexually transmitted disease (STD). Imidazole compounds are used for the treatment of trichomoniasis, and metronidazole is the most commonly prescribed. However, these compounds can lead to parasite resistance and unwanted side effects. Therefore, there is a need for an alternative treatment for this disease. Here, we explored the potential of clotrimazole (CTZ) and zinc compounds, as well as CTZ complexed with zinc salts ([1] acetate [Zn(CTZ)2(Ac)2] and [2] a chloride [Zn(C
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Tau, Prudence, Abimbola O. Ogunsipe, Suzanne Maree, M. David Maree, and Tebello Nyokong. "Influence of cyclodextrins on the fluorescence, photostability and singlet oxygen quantum yields of zinc phthalocyanine and naphthalocyanine complexes." Journal of Porphyrins and Phthalocyanines 07, no. 06 (2003): 439–46. http://dx.doi.org/10.1142/s1088424603000562.

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The effects of formation of cyclodextrin inclusion complexes on the photochemical and photophysical properties of zinc phthalocyanine ( ZnPc ) and various peripherally substituted zinc phthalocyanines as well as zinc naphthalocyanine ( ZnNPc ) are investigated. The cyclodextrins employed were the hydroxypropyl-γ-cyclodextrin and unsubstituted β-cyclodextrin. Job's plots were employed to confirm the stoichiometry of the inclusion complexes and showed 2:1 and 4:1 (cyclodextrin:phthalocyanine) inclusion behavior. The phthalocyanine inclusion complexes showed larger singlet oxygen quantum yield (ϕ
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Oh, Shin Bi, Jung Ah Kim, SuJi Park та Joo-Yong Lee. "Associative Interactions among Zinc, Apolipoprotein E, and Amyloid-β in the Amyloid Pathology". International Journal of Molecular Sciences 21, № 3 (2020): 802. http://dx.doi.org/10.3390/ijms21030802.

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Zinc and apolipoprotein E (apoE) are reportedly involved in the pathology of Alzheimer’s disease. To investigate the associative interaction among zinc, apoE, and amyloid-β (Aβ) and its role in amyloid pathogenesis, we performed various biochemical and immunoreactive analyses using brain tissues of Tg2576 mice and synthetic Aβ and apoE peptides. On amyloid plaques or in brain lysates of Tg2576 mice, apoE and Aβ immunoreactivities increased after zinc chelation and were restored by its subsequent replacement. Zinc depletion dissociated apoE/Aβ complexes or larger-molecular sizes of Aβ oligomers
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A., K. BANERJEE, K. GHOSH MONOJIT, K. SINHA SAILENDRA, and K. ROY S. "Alkali Metal Complexes. Binuclear Alkali Metal Complexes with Magnesium(II) and Zinc(II) Acetylacetonates." Journal of Indian Chemical Society Vol. 62, Apr 1985 (1985): 272–74. https://doi.org/10.5281/zenodo.6324541.

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Chemistry Department, Patna University, Patna-800 005 <em>Manuscript received 16 June 1983, accepted 30 April 1985</em> Heterobinuclear alkali metal complexes have been synthesised by treating metal chelates of magnesium and zinc acetylacetonates with alkali metal salts of 1-nitroso&shy;-2-naphthol and 8-hydroxyquinoline in ethanol/benzene-ethanol mixture. The general formula of the complex has been established as [M<sub>&alpha;&nbsp;</sub>(acac)<sub>2</sub>&nbsp;M<sub>b</sub>L], where M<sub>&alpha;</sub>&nbsp;-magnesium or zinc, acac<em>- </em>acetylacetonate, and M<sub>b</sub>L -Li, Na and K
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Müller-Hartmann, A., and H. Vahrenkamp. "Binary zinc-oligophosphate complexes." Inorganica Chimica Acta 300-302 (April 2000): 531–36. http://dx.doi.org/10.1016/s0020-1693(99)00614-3.

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Meyer, Nils, and Peter W. Roesky. "Chiral Aminotroponiminate Zinc Complexes." Organometallics 28, no. 1 (2009): 306–11. http://dx.doi.org/10.1021/om800858t.

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Datta, Simmi, Michael T. Gamer, and Peter W. Roesky. "TADDOLate complexes of zinc." Dalton Transactions, no. 13 (2008): 1761. http://dx.doi.org/10.1039/b715123c.

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Dissertations / Theses on the topic "Complexes de zinc"

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Doerrer, Linda H. (Linda Helen) 1968. "Cobalt, zinc, and cadminum tropocoronand complexes." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43296.

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Tirel, Emmanuel. "Zinc complexes for phosphate diester hydrolysis." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/7788/.

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This work focuses on catalysing the hydrolysis of DNA-like substrate with mononuclear zinc complexes. Particular attention is given to find new ways of activating the nucleophile of the reaction and to study the impact of organic groups that affect the microenvironment of the metal ion.
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Moreton, A. D. "Structure and reactivity of some aqueous zinc complexes." Thesis, University of Kent, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375179.

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Gianopoulos, Christopher G. "Development of Bulky Dipyrromethene Complexes of Aluminum, Zinc, and Rhodium." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1418317025.

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Pratt, Jo-Anne Margaret. "The development of zinc (II) selective fluorescent ligands /." Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09php915.pdf.

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Elrod-Erickson, Monica (Monica Ann) 1969. "Structural and biochemical studies of zinc finger-DNA complexes." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/49650.

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Ritch, Grayson D. "Synthesis, Characterization, and Reactivity of Novel Zinc Coordination Complexes." Kent State University Honors College / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1399675758.

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Dollberg, Christopher Lawrence. "Zinc and ruthenium quinone diimine complexes synthesis and photophysical properties /." Columbus, Ohio Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1071171484.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 171 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Claudia Turro, Dept.of Chemistry. Includes bibliographical references (p. 168-171).
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Tabone, Roberta. "Sinthesys of heteroleptic zinc complexes for imaging in living cells." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19188/.

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This thesis arose from an interest in luminescence heteroleptic bis(dipyrrinato) Zn (II) complexes and their application in cell imaging, due to their attractive and fascinating characteristics. Among imaging technologies, near-infrared fluorescence imaging has been dedicated immense attention owing to its low absorption and autofluorescence from surrounding organism and tissues in this specific spectral region, which minimize background interference and improve tissue depth penetration. An ideal near-infrared probe should be equipped with excellence chemical and photophysical properties. The
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Yang, Wen Yu. "Luminescent zinc and lanthanide complexes based on 2,2 '-dipyridylamine derivatives." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/MQ52968.pdf.

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Books on the topic "Complexes de zinc"

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McMaster, Jonathan. Copper and Zinc complexes of bi-imidazole ligands. University of Manchester, 1995.

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Coleman, A. P. Spectroscopic aspects of alkyl complexes of zinc, cadmium and mercury. University of East Anglia, 1990.

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Bhalla, Rajiv. Copper and zinc complexes of Bis- and Tris-imidazole ligands. University ofManchester, 1995.

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1941-, Rainsford K. D., ed. Copper and zinc in inflammatory and degenerative diseases. Kluwer Academic Publishers, 1998.

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Ferraz de Paiva, Raphael Enoque. Gold(I,III) Complexes Designed for Selective Targeting and Inhibition of Zinc Finger Proteins. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00853-6.

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Shlian, Daniel. Synthesis, Structures, and Reactivity of Zinc, Cadmium, and Magnesium Complexes Supported by Nitrogen Donor and Carboxylate Ligands. [publisher not identified], 2022.

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Sattler, Wesley Ian. (I) Zinc complexes as synthetic analogues for carbonic anhydrase and as catalysts for H₂ production and CO₂ functionalization . . . [publisher not identified], 2012.

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Christenson, Scott C. Contamination of wells completed in the Roubidoux aquifer by abandoned zinc and lead mines, Ottawa County, Oklahoma. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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Christenson, Scott C. Contamination of wells completed in the Roubidoux aquifer by abandoned zinc and lead mines, Ottawa County, Oklahoma: [microform]. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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Christenson, Scott C. Contamination of wells completed in the Roubidoux aquifer by abandoned zinc and lead mines, Ottawa County, Oklahoma: [microform]. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.

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Book chapters on the topic "Complexes de zinc"

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Meyer, B. K. "Bound Exciton Complexes." In Zinc Oxide. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10577-7_7.

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Sukumar, Ethirajan, Vajiravelu Sivamurugan, and E. Rajkumar. "Unique Complexes of Zinc and Their Applications." In Zinc. CRC Press, 2024. http://dx.doi.org/10.1201/9781003412472-15.

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Kimura, Eiichi, Tohru Koike, and Mitsuhiko Shionoya. "Advances in Zinc Enzyme Models by Small, Mononuclear Zinc (II) Complexes." In Metal Sites in Proteins and Models. Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/3-540-62874-6_7.

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Bochmann, Manfred, Gabriel Bwembya, Kevin J. Webb, M. A. Malik, J. R. Walsh, and P. O'Brien. "Arene Chalcogenolato Complexes of Zinc and Cadmium." In Inorganic Syntheses. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132623.ch5.

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Claridge, R. F. C. "1.26 Zinc-centered radicals." In Inorganic Radicals, Metal Complexes and Nonconjugated Carbon Centered Radicals. Part 1. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48466-0_28.

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Howard, J. A. "2.16 Zinc-centered radicals." In Inorganic Radicals, Metal Complexes and Nonconjugated Carbon Centered Radicals. Part 1. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48466-0_67.

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Sorenson, J. R. J. "Copper complexes in the treatment of experimental inflammatory conditions: inflammation, ulcers and pain." In Copper and Zinc in Inflammation. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2619-6_6.

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Beveridge, S. J. "Copper therapy of inflammatory disorders: efficacy and biodistribution of topically applied copper complexes." In Copper and Zinc in Inflammation. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2619-6_7.

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Kimura, Eiichi. "Macrocyclic Polyamine Zinc(II) Complexes as Advanced Models for Zinc(II) Enzymes." In Progress in Inorganic Chemistry. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470166420.ch6.

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Sorenson, J. R. J. "Copper complexes for therapy of cancer and autoimmune diseases." In Copper and Zinc in Inflammatory and Degenerative Diseases. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3963-2_7.

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Conference papers on the topic "Complexes de zinc"

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Wang, Xin, Zhaoyi Dai, Yue Zhao, et al. "Zinc Sulfide Solubility Modeling in Aqueous Solution at High Temperature, Pressure, and Ionic Strength." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17763.

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Abstract In this study, the solubility of zinc sulfide has been collected from the literature at pH 2 to 11, temperature 23 to 250 °C, pressure 0.6 to 150 bar, and ionic strength 0 to 4.6 m. A solubility model has been developed based on the combination of Pitzer theory calculated activity coefficient and speciation of the Zn-HS-OH-Cl aqueous system. In total, around 230 solubility data were collected as the input database, the model was fitted in Matalab 2020a with the particle-swarm optimization. The updated model is able to predict the ZnS solubility saturation index (SI) with 95% confidenc
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Mangalagiu, Violeta, Dorina Amariucai-Mantu, Dumitrela Diaconu, and Vasilichia Antoci. "BENZIMIDAZOLE � PYRIDINE: A NEW TYPE OF HGHLY SENSITIVE CHEMOSENSOR FOR ZN2+." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s23.01.

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Discovery of new chemosensors for M2+ cations represent a continuously and challenging issue for researcher because of their potential applications in nano and micro technologies. Among the other metals, zinc is the second most abundant transition metal ion in human body and plays a crucial role in many biological and environmental processes. In this work we present the design, synthesis and characterization of a Zn2+ chemosensors and its coordination complexes based on podants with benzimidazole - pyridine skeleton. The new chemosensor have in the same molecule a ?�reach heterocycles (benzimi
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Kawahara, Yuuzou, Yoshirou Umehara, Hidemichi Iizuka, and Koutarou Kikuchi. "Development of Sea Water Hydrostatic Test System for LNG Storage Tank on the Ground." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06068.

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Abstract A sea water hydrostatic test system for LNG storage tanks on the ground that can be completed in a short period of less than one month and whose feature is the cathodic protection of the internal wetted surfaces using Zinc-rich paints has been developed, without any risk of localized corrosion and water pollution. The galvanic corrosion and stress corrosion cracking (SCC) due to welding of different metals of 9 % Ni steel and Ni base weld metal in the internal tank vessel can be prevented by applying inorganic zinc or zinc primer and zinc tape. Their corrosion prevention performance h
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Leng, Douglas L., Rodney G. Powers, and Ivan R. Lasa. "Zinc Mesh Cathodic Protection Systems." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00795.

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Abstract Over the years several forms of sacrificial anode cathodic protection systems have been developed and successfully used to provide corrosion control in marine environments. For more than a century cast anodes have been used to protect ship hulls, propellers and other exposed metal objects from corrosion in a purely galvanic mode. However it was not until recently, in the past twenty years, did researchers begin evaluating the potential benefits of applying sacrificial cathodic protection to steel and steel reinforced concrete structures that are environmentally exposed to marine corro
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Morales, Raquel, Antoni Prieto, Joaquin Ferreiro, and David Morton. "Can You Use a Zinc Rich Primer When Painting Offshore?" In Coatings+ 2020. SSPC, 2020. https://doi.org/10.5006/s2020-00040.

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Abstract Traditional zinc rich primers are the primer of choice during new construction of assets placed offshore for oil &amp; gas production. However, during maintenance, zinc rich primers are not used because of difficulties of having good surface preparation and controlling applied dft to prevent cracking. This paper will examine the performance of new, activated zinc rich epoxy primers compared to conventional zinc rich epoxy primers on steel prepared to different surface profiles using standard techniques of today. Surface preparation is a crucial factor to ensure good performance of coa
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Kim, Chuljung. "A Comparative Study on Coating Performance of Inorganic Zinc Primer System and Inorganic Copolymer System by Long-Term Durability Test Including High Temperature Exposure at 540°C." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18820.

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Abstract Bulk items such as cast and forged valves are commonly to be installed randomly without information on operating conditions. Therefore, inorganic copolymer coating products covering a wide temperature range are applied with a thickness of 250 μm (10 mils) to 300 μm (12 mils). The inorganic zinc coating system is also able to be applied in a wide temperature range, but it is limited to up to 400°C (752°F) due to the zinc melting point of 420°C (788°F). However, if zinc coating is not applied as a topcoat, it may be retarded from being oxidized even at high temperatures. Thus, consideri
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Felipe, Mary Jane, Sidney Dunn, Timothy Underwood, Monty Pifer, and David Fulmer. "New Eco-Friendly Chemistry for Passivation of Galvanized Coatings." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11532.

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Abstract The use of galvanized systems in the fabrication of cooling towers, varies from industry to industry. Galvanizing provides a zinc coating on the metal substrate. The zinc coating performs as a sacrificial anode, preventing corrosion of the metal substrate. However, control on the formation of white rust should be taken into consideration when using a galvanized system. White rust is characterized by the accumulation of white and fluffy non-protective zinc corrosion product. When kept untreated, white rust corrosion can seriously damage the galvanized zinc coating. Once the zinc layer
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Horton, A. M. (Mike). "Metallized Zinc Coating on Ductile Iron Pipe – Results of 50 Years of Corrosion Testing in One of the Most Aggressive Soil Environments Found in the United States." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00160.

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Abstract Zinc metallizing with a high purity zinc wire plus a topcoat has been utilized in Europe for external corrosion control of iron pipe for over 65 years and in the United States for over 35 years. This method of external corrosion protection for ductile iron pipe has been under evaluation by the Ductile Iron Pipe Research Association and by North American ductile iron pipe manufacturers since 1975. This paper summarizes 50 years of testing and research of metallic zinc coating on ductile iron pipe (DIP) in one of the most corrosive soils found in the United States – the Florida Everglad
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Kessler, Richard J., Rodney G. Powers, and Ivan R. Lasa. "Zinc Mesh Anodes Cast into Concrete Pile Jackets." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96327.

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Abstract A sacrificial anode cathodic protection system has been designed to provide corrosion control to the splash area as well as the submerged portion of reinforced concrete bridge pilings in marine environments. The system consists of a two piece stay in place fiberglass form provided with a internally placed expanded zinc mesh anode and filled with a portland cement-sand mortar to protect the splash area of the pile. The submerged portion of the pile is protected using a standard zinc bulk anode. The experimental system was installed by the Florida Department of Transportation on two cor
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Wehling, J. E. "A Galvanic Zinc-Hydrogel System For Cathodic Protection Of Reinforced Concrete Structures." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99551.

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Abstract Installations of galvanic cathodic protection anodes have been completed on bridge structures in Illinois, Virginia, Florida, Wisconsin, and Oregon, on parking garages in Illinois and Wisconsin, on high voltage transmission tower footings in California, and on condominium balconies in Florida. Some of these installations involve prestressed concrete. The installation of these systems will be described in detail and monitoring data will be presented for at least six months of active service. The system consists of a 10 mil zinc foil bonded to an ionically conductive hydrogel adhesive,
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Reports on the topic "Complexes de zinc"

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Ruangpornvisuti, Vithaya. Investigation of conformational equilibrium and proton affinity of Thiacalix[4] arenas and their complexes with cations : research report. Chulalongkorn University, 2004. https://doi.org/10.58837/chula.res.2004.35.

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The p-tert-butylsulfonylcalix[4]arene and sulfonycalix[4]arene conformers have been obtained by AM1 geometry optimizations. The structural cavities of p-tert-butylsulfonylcalix[4]arene and sulfonylcalix[4]arene conformers of which phenol groups are bridged by sulfonyl sulfur have been compared to the calix[4]arene and thiacalix[4]arene. The conformational energies of p-tert-butylsulfonylcalix[4]arene have been compared with the energies of sulfonylcalix[4]arene, calix[4]arene and thiacalix[4]arene. The most stable conformer of sulfonylcalix[4]arene and p-tert-butylsulfonylcalix[4]arene are 1,2
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Wagner, M. R. NMR investigation of dynamic processes in complexes of nickel(II) and zinc(II) with iminodiacetate, n-methyliminodiacetate and n-ethyliminodiacetate. Office of Scientific and Technical Information (OSTI), 1985. http://dx.doi.org/10.2172/5982240.

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Xie, Weiwei. The role of zinc on the chemistry of complex intermetallic compounds. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1226562.

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Dolan, Cheryl E. Structural and Functional Studies of the Protamine 2-Zinc Complex from Syrian Gold Hamster (Mesocricetus Auratus) Spermatids and Sperm. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/15014805.

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Genther-Schroeder, Olivia N., and Stephanie L. Hansen. Effect of Zinc Amino-Acid Complex and Optaflexx Feeding Duration on Growth Performance and Carcass Characteristics of Finishing Cattle. Iowa State University, 2016. http://dx.doi.org/10.31274/ans_air-180814-562.

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Cross, L. E. Complete Thermodynamic Phenomenologies for Lead Zinc Niobate: Lead Titanate (PZN:PT) and the Lead Magnesium Niobate: Lead Titanate (PMT:PT) Single Crystal System. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada390555.

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Jander, Georg, and Daniel Chamovitz. Investigation of growth regulation by maize benzoxazinoid breakdown products. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600031.bard.

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Introduction Previous research had suggested that benzoxazinoids, a class of defensive metabolites found in maize, wheat, rye, and wild barley, are not only direct insect deterrents, but also influence other areas of plant metabolism. In particular, the benzoxazinoid 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxa- zin-3(4H)- one (DIMBOA) was implicated in: (i) altering plant growth by interfering with auxin signaling, and (ii) leading to the induction of gene expression changes and secondary plant defense responses. The overall goal of this proposal was to identify mechanisms by which benzoxazinoids i
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Contamination of wells completed in the Roubidoux aquifer by abandoned zinc and lead mines, Ottawa County, Oklahoma. US Geological Survey, 1995. http://dx.doi.org/10.3133/wri954150.

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