Relevant bibliographies by topics / Macro metals

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Academic literature on the topic 'Macro metals'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Macro metals"

Koraboyevna, Atakhonova Sayyora. "BASIC METHODS OF STUDYING THE INTERNAL STRUCTURE OF METALS." American Journal of Engineering and Technology 5, no. 12 (2023): 33–37. http://dx.doi.org/10.37547/tajet/volume05issue12-08.

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This article presents the methods of analysis of metals. Technological processes, such as checking the macro and microstructure of metals and alloys, are widely covered. Equipment used for macro and micro analysis and slide preparation technologies are widely covered.

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Dukhan, Nihad, Yu-chen Karen Chen-Wiegart, Ashley Paz y. Puente, Dinc Erdeniz, and David C. Dunand. "Introduction - Porous Metals: From Nano to Macro." Journal of Materials Research 35, no. 19 (2020): 2529–34. http://dx.doi.org/10.1557/jmr.2020.282.

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Idonije, O. Blessing*1 3. Festus O. Okojie2 &. Agbebaku O. Solomon3. "SOME SELECTED TRACE METALS (ESSENTIAL AND TOXIC) AND MACRO-METAL MG AS PROBABLE BIOMARKERS OF OBESITY-ASSOCIATED COMPLICATIONS." Indian Journal of Medical Research and Pharmaceutical Sciences 6, no. 8 (2019): 11–21. https://doi.org/10.5281/zenodo.3380453.

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Background: Trace metals and Mg metabolism may play a role in adiposity which contributes to inflammation and oxidative stress;   two potential mechanisms proposed to play a major role in the morbidity/mortality associated with obesity hence this study. Methods: We investigated trace metals-essential and toxic (Zn, Cu, Mn, Fe, Se, Cr, Pb, Cd and macro-metal Mg) in two hundred and sixty-four (264) subjects. They consist of group NONDH (60 non obese non diabetic/hypertensive or normal control); Group ONDH (45 Obese Non Diabetic/

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Luo, Liang, Zheng Yi Jiang, Dong Bin Wei, and Xiaofeng He. "Study on Micro Hydroforming of Metals." Advanced Materials Research 887-888 (February 2014): 1133–38. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.1133.

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Micro hydroforming has an ability to manufacture complex 3D micro parts at a high production rate and has drawn increasing attentions. Brief understanding of macro hydroforming, for instance, deep drawing, is necessary to understand the principle of micro hydroforming. Then, special phenomena, such as size effects, occurred at micro scale are discussed and the related theories explaining these phenomena are introduced. Based on the similarities and differences between micro and macro hydroforming, experiments and simulation which consider the size effects are reviewed.

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Dukhan, Nihad, Yu-chen Karen Chen-Wiegart, Ashley Paz y. Puente, Dinc Erdeniz, and David C. Dunand. "Introduction - Porous Metals: From Nano to Macro - CORRIGENDUM." Journal of Materials Research 35, no. 23-24 (2020): 3305. http://dx.doi.org/10.1557/jmr.2020.327.

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Zavoyilichinskaya, E. B. "Theory of the gradual accumulation of fatigue damage in metals under proportional cyclic loading." Izvestiya MGTU MAMI 9, no. 2-4 (2015): 68–75. http://dx.doi.org/10.17816/2074-0530-67134.

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The paper provides system of hypotheses about the development of defects in metals at micro, meso and macro levels (such as fragile micro- and macro-cracks) under arbitrary proportional (simple) cyclic loading. The system is formulated on the basis of extensive experimental and theoretical material about fatigue failure of metals and metal alloys. For uniaxial loading the symmetrical correlations of phenomenological model of brittle fatigue loading of metals are written. The correlations cover the entire process step by step with the release of a typical state - the type of defect.

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Babić Leko, Mirjana, Matej Mihelčić, Jasna Jurasović, et al. "Heavy Metals and Essential Metals Are Associated with Cerebrospinal Fluid Biomarkers of Alzheimer’s Disease." International Journal of Molecular Sciences 24, no. 1 (2022): 467. http://dx.doi.org/10.3390/ijms24010467.

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Various metals have been associated with the pathogenesis of Alzheimer’s disease (AD), principally heavy metals that are environmental pollutants (such as As, Cd, Hg, and Pb) and essential metals whose homeostasis is disturbed in AD (such as Cu, Fe, and Zn). Although there is evidence of the involvement of these metals in AD, further research is needed on their mechanisms of toxicity. To further assess the involvement of heavy and essential metals in AD pathogenesis, we compared cerebrospinal fluid (CSF) AD biomarkers to macro- and microelements measured in CSF and plasma. We tested if macro-

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Noverita, Noverita, Nuniek Ina Ratnaningtyas, Endang Sukara, Nuraeni Ekowati, and Sri Lestari. "Tinjauan Biosorpsi Logam Berat Pb dan Cd Oleh Jamur Makro." Al-Kauniyah: Jurnal Biologi 16, no. 2 (2023): 309–26. http://dx.doi.org/10.15408/kauniyah.v16i2.24569.

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AbstrakKeberadaan logam berat perlu ditanggulangi, salah satunya dengan cara biosorpsi. Biosorpsi merupakan salah satu metode remediasi yang paling tepat digunakan dalam menanggulangi pencemaran logam berat. Proses secara efisien dapat menyerap logam berat terlarut bahkan logam berat yang ada dalam larutan kompleks yang sangat encer. Jamur makro merupakan contoh biosorben yang dapat digunakan dalam biosorpsi. Pemanfaatan jamur makro sebagai biosorben sangat tepat dilakukan karena keanekaragaman jenisnya tinggi, cepat tumbuh dengan kemampuan metabolisme yang beragam pada berbagai senyawa organi

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Tafere, Dessie Ashagrie, and Minbale Admas Teshager. "Determination of the Levels of Selected Essential Metals in Sycamore (Ficus sycomorus L) Fruit and Seed Using Flame Atomic Absorption Spectrophotometry." Journal of Chemistry 2023 (July 13, 2023): 1–11. http://dx.doi.org/10.1155/2023/3937604.

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Background. Edible wild fruits are nature’s gift to mankind. Considering the growing need to identify alternative bio-nutritional sources, some underutilized species of Ficus sycomorus L. of the family Moraceae were evaluated as wild edible fruits to study its nutritive and mineral composition in order to prioritize its edibility for people. Methods. The concentration of macro (K, Ca, and Mg) and micro essential elements (Fe, Mn, Zn, and Cu) metals in sycamore fruit and seed samples was determined by using a flame atomic absorption spectrophotometer (F AAS). The wet digestion procedure was eva

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Nam, Hyunbin, Seonghoon Yoo, Junghoon Lee, Youngsang Na, Nokeun Park, and Namhyun Kang. "GTA Weldability of Rolled High-Entropy Alloys Using Various Filler Metals." Metals 10, no. 10 (2020): 1371. http://dx.doi.org/10.3390/met10101371.

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Gas tungsten arc (GTA) weldability of rolled CoCrFeMnNi high-entropy alloys (HEAs) was conducted using stainless steel (STS) 308L and HEA fillers. Microstructure and mechanical properties of the welds were examined to determine GTA weldability of the rolled HEA. The welds had no macro-defects, and component behaviour between base metal (BM) and weld metal (WM) showed significant differences in the weld using the STS 308L filler. Macro-segregation of Fe components was confirmed in the central region in the WM using the STS 308L filler. Because the columnar grain sizes of all the WMs were larger

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Dissertations / Theses on the topic "Macro metals"

Prazeres, Marcionila Alexandre Gomes dos. "Determinação de macro e microelementos em crustáceos catado comercializados em Salvador, Bahia, Brasil." reponame:Repositório Institucional da UFBA, 2011. http://www.repositorio.ufba.br/ri/handle/ri/10797.

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98f. Submitted by Ana Hilda Fonseca (anahilda@ufba.br) on 2013-04-10T15:28:07Z No. of bitstreams: 1 Dissertação versão final. 2012.pdf: 2926493 bytes, checksum: 7c8eb202f8e1d49db66d28957c7f2ad6 (MD5) Approved for entry into archive by Ana Hilda Fonseca(anahilda@ufba.br) on 2013-05-10T15:54:03Z (GMT) No. of bitstreams: 1 Dissertação versão final. 2012.pdf: 2926493 bytes, checksum: 7c8eb202f8e1d49db66d28957c7f2ad6 (MD5) Made available in DSpace on 2013-05-10T15:54:03Z (GMT). No. of bitstreams: 1 Dissertação versão final. 2012.pdf: 2926493 bytes, checksum: 7c8eb202f8e1d49db66d28957c7f2ad

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Cunha, Vera de Almeida Cardoso. "Redução do teor de contaminantes químicos em bivalves provenientes do Estuário do Tejo." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5326.

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Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia Manila clam (Ruditapes philippinarum), mussel (Mytilus sp.) and peppery furrow shell clam (Scrobicularia plana) are species with high abundance in the Tagus estuary. However, these species may have high levels of contaminant metals. This study aimed to determine the effect of depuration of manila clam, mussel and peppery furrow shell clam on the content of contaminant metals (Cd, Pb and Hg) and on macro, micro and trace elements (S, Ca, K, Cl, Fe, Cu, Zn, As, Se, Br, Rb and Sr). The results revealed that the depuration

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Hadjichari, Andrew Michael, University of Western Sydney, and School of Civic Engineering and Environment. "Determination of heavy metals on macro- and micro-electrodes by adsorptive cathodic stripping voltammetry and anodic stripping voltammetry." THESIS_XXXX_CEE_Hadjichari_A.xml, 1999. http://handle.uws.edu.au:8081/1959.7/602.

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This thesis describes the application of macro, micro, ultra-microelectrodes and microelectrode arrays to the measurement of trace concentrations of nickel and cobalt in sediment and natural waters by adsorptive cathodic stripping voltammetric methods. In addition the measurement of tin by adsorptive cathodic stripping voltammetry in sediment and natural waters is discussed. Also, the application of macroelectrodes and microelectrode arrays to the measurement of lead, cadmium and zinc in sediment and natural waters by anodic stripping voltammetry is considered. In all cases the determination o

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Hadjichari, Andrew Michael. "Determination of heavy metals on macro- and micro-electrodes by adsorptive cathodic stripping voltammetry and anodic stripping voltammetry." Thesis, View thesis, 1999. http://handle.uws.edu.au:8081/1959.7/602.

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Hadjichari, Andrew Michael. "Determination of heavy metals on macro- and micro-electrodes by adsorptive cathodic stripping voltammetry and anodic stripping voltammetry /." View thesis, 1999. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030828.122855/index.html.

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Thesis (Ph. D) -- University of Western Sydney, Nepean, 1999. A thesis presented for the degree of Doctor of Philosophy, Centre for Electrochemical Research and Analytical Technology, University of Western Sydney, Nepean. Includes bibliographical references.

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Blanckaert, Alice. "Effets de la disponibilité en macro- et micro-nutriments sur la physiologie des coraux tropicaux." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS010.

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Les coraux tropicaux se sont adaptés à vivre dans des eaux pauvres en nutriments en établissant une relation symbiotique avec des dinoflagellés photosynthétiques (Symbiodiniaceae). En effet, les dinoflagellés utilisent les macronutriments (azote et phosphore inorganiques dissous, DIN et DIP) et métaux-traces de l’eau pour former des molécules organiques essentielles à la croissance du corail hôte. Cependant, pour une croissance et un fonctionnement optimal, l’association corail-dinoflagellé nécessite une qualité et des concentrations optimales de ces nutriments. Ce n’est pas le cas dans les ré

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Ghsoub, Myriam. "Dynamique des masses d'eaux côtières libanaises soumises à l'impact d'un fleuve." Thesis, Perpignan, 2019. http://www.theses.fr/2019PERP0026.

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Le but principal de cette étude est de comprendre le fonctionnement de la zone interface, continuum terre-mer au Liban. Suite à l’anthropisation spécifiquement la construction des barrages, les apports du fleuve vers la mer en termes de quantité et qualité, sont modifiés de nos jours. Le fleuve Ibrahim, ayant le débit le plus important parmi les fleuves libanais, interrompu par trois barrages, a été choisi comme étude de cas représentant les fleuves côtiers libanais. Les différents paramètres retenus ont permis de dégager des résultats intéressants. Au niveau de l’eau de surface marine le pana

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Отчик, А. Є. "Макро- та мікроелементози у дорослих, що мешкають в мегаполісах". Thesis, Сумський державний університет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/45135.

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Однією з важливих проблем великих міст є забруднення атмосферного повітря і води. До основних екологічних забруднювачів великих міст відносяться важкі метали, які надходять в організм людини інгаляційним шляхом і з водою, що може (спільно з неякісним харчуванням) стати причиною макро- та мікроелементозів. Однак проблема дисбалансу біогенних елементів у мешканців великих міст залишається невивченою. Мета роботи - вивчення особливостей вмісту біогенних елементів в сироватці крові людей, що мешкають у мегаполісах.

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Riera, Elisabeth. "Vers une construction raisonnée d’une nouvelle génération de récifs artificiels : Analyses comparatives des facteurs intrinsèques favorisant leur colonisation de la micro à la macro-échelle." Thesis, Université Côte d'Azur, 2020. http://www.theses.fr/2020COAZ4001.

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Les récifs artificiels sont des structures immergées posées délibérément sur le fond marin pour imiter certaines caractéristiques d’un habitat naturel, ils sont utilisés depuis des milliers d’années par les hommes dans le but d’améliorer leurs pratiques de pêches et depuis peu ils sont également employés pour la protection voire la restauration de certains habitats marins. Malgré ces divers objectifs, il réside encore un manque de fondements scientifiques pour déterminer la qualité de ces structures mises à l’eau afin d’en évaluer leur efficacité. Les présent travaux, focalisés sur l’étude de

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Shum, Roger Chi Fai Carleton University Dissertation Engineering Electrical. "A timing macro model for performance optimization of CMOS logic circuits." Ottawa, 1992.

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Books on the topic "Macro metals"

A, Naik Rajiv, and Langley Research Center, eds. A macro-mechanics analysis of a notched metal matrix composite. National Aeronautics and Space Administration, Langley Research Center, 1990.

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A, Naik Rajiv, and Langley Research Center, eds. A macro-mechanics analysis of a notched metal matrix composite. National Aeronautics and Space Administration, Langley Research Center, 1990.

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Nino, Russo, Salahub Dennis R. 1946-, Witko Malgorzata, and North Atlantic Treaty Organization. Scientific Affairs Division., eds. Metal-ligand interactions: Molecular-, nano-, micro-, and macro-systems in complex environments. Kluwer Academic Publishers, 2003.

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M, Arnold Steven, and United States. National Aeronautics and Space Administration., eds. Critique of macro flow/damage surface representations for metal matrix composites using micromechanics. National Aeronautics and Space Administration, 1996.

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Jimmy, Hsia K., Mughrabi Haël, Minerals, Metals and Materials Society. Meeting, and Minerals, Metals and Materials Society. Structural Materials Division., eds. Plasticity, failure and fatigue in structural materials-from macro to nano: Proceedings of the Hael Mughrabi honorary symposium : proceedings of symposia sponsored by the Structural Materials Division of the Minerals, Metals & Materials Society (TMS), held during TMS 2008 Annual Meeting & Exhibition, New Orleans, Louisiana, USA, March 9-13, 2008. TMS-Minerals, Metals, & Materials Society, 2008.

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Witko, Malgorzata, Dennis R. Salahub, and N. Russo. Metal-Ligand Interactions: Molecular, Nano-, Micro-, and Macro-Systems in Complex Environments. Springer, 2012.

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He, Jinliang. Metal Oxide Varistors: From Microstructure to Macro-Characteristics. Wiley & Sons, Incorporated, John, 2019.

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Hu, Jun, and Jinliang He. Metal Oxide Varistors: From Microstructure to Macro-Characteristics. Wiley-VCH Verlag GmbH, 2015.

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He, Jinliang. Metal Oxide Varistors: From Microstructure to Macro-Characteristics. Wiley & Sons, Incorporated, John, 2019.

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He, Jinliang. Metal Oxide Varistors: From Microstructure to Macro-Characteristics. Wiley & Sons, Incorporated, John, 2019.

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Book chapters on the topic "Macro metals"

Hauptmann, Andreas. "Macro- and Microstructure of Metals." In Natural Science in Archaeology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50367-3_8.

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Ohno, Atsumi. "Controlling the Macro Structure of Cast Metals." In Solidification. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-95537-2_3.

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Chatterjee, Kaulir Kisor. "Annexure II: Mineral-Wise Uses of Metals, Minerals and Rocks." In Macro-Economics of Mineral and Water Resources. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15054-3_10.

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Yamada, Tatsuya, Nobuhito Ishikawa, Takashi Kubo, and Koichi Takahashi. "Full Size Measurement and Simple Prediction on Macro Segregation of Aluminum Alloys Elements in Industrial Direct Chill Casting Slab." In Light Metals 2017. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51541-0_118.

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Chatterjee, Kaulir Kisor. "Annexure I: Repertory of Product-Wise Uses of Metals, Minerals and Rocks." In Macro-Economics of Mineral and Water Resources. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15054-3_9.

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Colligan, Kevin. "Analysis of FSW Macro-sections in Aluminum Relative to Unit-Area Analysis." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-80896-8_19.

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Modala, Indu, Paromita Nath, and Nand Kishore Singh. "Analyzing Micro-Macro Transitional Length Scale in 3D Printed Chopped Fiber Reinforced Polymer Materials." In The Minerals, Metals & Materials Series. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50349-8_19.

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Shang, Shan, Bin Hu, Zhiqiang Han, Weihua Sun, and Alan A. Luo. "Macro- and Micro-Simulation and Experiment Study on Microstructure and Mechanical Properties of Squeeze Casting Wheel of Magnesium Alloy." In The Minerals, Metals & Materials Series. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-57864-4_25.

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Paul, Henryk, and Julian H. Driver. "Deformation Structure and Texture Transformations in Twinned Fcc Metals: Critical Role of Micro- and Macro- Scale Shear Bands." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-434-0.521.

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Schuiling, R. D. "The Black Sea: A Georeactor to Immobilize Metal Wastes." In Macro-engineering Seawater in Unique Environments. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14779-1_12.

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Conference papers on the topic "Macro metals"

Tomson, Mason, Amy Kan, Gongmin Fu, and Musaed Al-Thubaiti. "A Molecular Theory of Mineral Scale Inhibition." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04075.

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Abstract Mineral scale inhibitors are used in many industries and are ubiquitous in biological systems. Yet, no molecular theory of inhibition exists that can explain field observations and be used to optimize inhibition. A common source of complication in understanding the mechanism of inhibition is potential for precipitation of metal salts of inhibitors, either calcium or iron and possibly other heavy metals. A new molecular theory of scale inhibition is presented that can be used to explain most empirical observations of inhibition of sparingly soluble minerals such as calcite and divalent

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Yang, B., F. Lu, and K. Sotoudeh. "Determination of Metal Corrosion Rates in Low Conductivity Solutions by Electrochemical Methods." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93357.

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Abstract In this paper, the technical difficulties such as unacceptable high solution ohmic drop and non-uniform current and potential distribution associated with the use of electrochemical techniques and conventionally prepared macro-electrode samples to determine metal corrosion rates in low conductivity solutions are discussed. A description of the development of a new probe based on multiple micro-electrodes to overcome these difficulties is given. The advantages of using the new probe to determine metal corrosion rates in soft water with various conductivities are discussed and demonstra

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Jones, D. A., B. Pitonzo, P. Castro, and P. S. Amy. "Electrochemical Characteristics of MIC." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97221.

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Abstract This paper initially reviews the mechanism of MIC with an emphasis on electrochemical aspects. The related charge-transfer (electrochemical) mechanisms of bacterial growth and corrosion are compared on the potential-pH (Pourbaix) diagram. Bacterial consortia isolate micro and macro areas on metal surfaces to create favorable oxidizing/reducing and chemical conditions, maximize biomass growth, and foster localized corrosion. Electrochemical corrosion rate measurements have been conducted over several months on carbon steel exposed to aerobic iron-oxidizing, anaerobic sulfate reducing,

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Lua, Jim, Rui Li, Manoj Rajanna, Ravi Sankar Haridas, and Rajiv Mishra. "Multi-Physics Informed Planning for Hybrid Metal Additive and Subtractive Manufacturing." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-355.

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Hybrid additive manufacturing (AM) and subtractive manufacturing (SM) processes utilize the combination of AM (e.g., LPBF and DED) and SM (e.g., milling and turning operations) to produce the final part. Due to the poor surface roughness resulting from the uneven melting of powders in AM, the subtractive process is a necessary finishing operation to improve the surface roughness of the AM part. The hybrid AM/SM technology combines the benefits of AM and SM processes to create complex geometry while introducing good surface finish and compressive stress to prevent crack initiation. However, the

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Wagner, Scott W., Kenny Ng, William J. Emblom, and Jaime A. Camelio. "Influence of Continuous Direct Current on the Micro Tube Hydroforming Process." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50257.

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Research of the micro tube hydroforming (MTHF) process is being investigated for potential medical and fuel cell applications. This is largely due to the fact that at the macro scale the tube hydroforming (THF) process, like most metal forming processes has realized many advantages. Unfortunately, large forces and high pressures are required to form the parts so there is a large potential to create failed or defective parts. Electrically Assisted Manufacturing (EAM) and Electrically Assisted Forming (EAF) are processes that apply an electrical current to metal forming operations. The intent of

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Elruby, Ahmed, and Sam Nakhla. "Micro-Macro Finite Element Procedure To Predict Elastoplastic Behavior And Ultimate Failure Of Porous Metals." In Canadian Society for Mechanical Engineering International Congress (2021 : Charlottetown, PE). University of Prince Edward Island. Robertson Library, 2021. http://dx.doi.org/10.32393/csme.2021.155.

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Dilshan, RADP, A. Sageenthan, NGN Weerangana, et al. "Geochemical Distribution of Selected Elements in Serpentinite Deposit in Ginigalpelessa, Sri Lanka." In International Symposium on Earth Resources Management & Environment. Department of Earth Resources Engineering, University of Moratuwa, Sri Lanka, 2022. http://dx.doi.org/10.31705/iserme.2022.6.

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Serpentinite deposits are well known for their natural enrichments of heavy metals (Ni, Cr, Co) and depletions of macro nutrients (Ca, Mg), which have caused different ecological and health impacts in the surrounding areas. In addition, they are considered as potential sources for rare earth elements (REEs). While Ginigalpelessa, the largest serpentinite deposit in Sri Lanka, has been the focus of several toxicological studies, to date, there have been no significant studies related to geochemical distribution of heavy metals, macro nutrients, and REEs in the deposit. Therefore, the present st

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Knežević, Bojana, Nataša Bošković, Marija Zorić, and Zorica B. Leka. "Macro and microelements in the leaf and extract of nettle from different localities of Montenegro." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.543k.

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Abstract: In this study, the content of 11 bioelements and 3 heavy metals in the dry nettle leaf and its water extract was investigated. Nettles were sampled from three different locations in Montenegro (northern, central and southern region). The determination of elements was done using the ICP – OES method. The bioelement content varies with geographic and climatic characteristics. Out of the four macroelements, whose presence was examined in nettle, the highest content is Ca, followed by K, then Mg, and the lowest is Na. Meanwhile, when it comes to microelements, the highest content is Fe,

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Marconcini, Francesco, Francesco Tamburrino, Guido Giammarinaro, Fabrizio Paganucci, and Armando Viviano Razionale. "Investigation of the Material Extrusion Additive Manufacturing of an Inconel-718 Filament." In Euro Powder Metallurgy 2023 Congress & Exhibition. EPMA, 2023. http://dx.doi.org/10.59499/ep235765215.

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Material Extrusion Additive Manufacturing (MEAM) for metals is becoming increasingly appealing compared to other metal AM techniques, which are typically energy-intensive and require equipment expensive to install and maintain. In MEAM a polymeric feedstock filled with metal particles is extruded through a heated nozzle; subsequently, the 3D-printed green parts are debound and sintered. This study investigates the feasibility of producing functional Inconel-718 components with a commercial filament and a desktop printer, using a one-step thermal debiding and sintering procedure. To this purpos

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Wuertemberger, Lauren B., Megan N. Chann, and Richard M. Onyancha. "Investigating the Effect of Miniaturization on the Microtensile Properties of Brass (CuZn30)." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50169.

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As everyday equipment becomes smaller and smaller, it is of increasing importance that the manufacturing processes used for metals are capable of producing parts of appropriate sizes. Currently, manufacturing processes assume macromaterial properties can be applied for microscale production, but is this a valid assumption? This paper investigates the accuracy of applying macroscale tensile properties in microscale applications. In order to test the soundness of this supposition, tensile tests were performed on both macroscale and microscale brass specimens, and the resulting calculated materia

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Reports on the topic "Macro metals"

Савосько, Василь Миколайович, Юлія Віліївна Бєлик, Юрій Васильович Лихолат, Герман Хайльмейер, and Іван Панасович Григорюк. Macronutrients and Heavy Metals Contents in the Leaves of Trees from the Devastated Lands at Kryvyi Rih District (Central Ukraine). КДПУ, 2020. http://dx.doi.org/10.31812/123456789/4151.

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The relevance of these studies was due to the need to clarify the biogeochemical characteristics of woody plant species that grow naturally on devastated lands. The object of this paper: to carry out a comparative analysis of macro nutrients and heavy metals contents in the leaves of trees spontaneously sprouting on the devastated lands at the Kryvyi Rih District. This research was performed at Petrovsky waste rock dump, the Central part of the Kryvyi Rih iron-ore & metallurgical district (Dnipropetrovsk region, Ukraine). The macronutrients (K, Ca, Mg, P and S) and heavy metals (Fe, Mn, Zn

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Aimone, Jason, Sheryl Ball, Esha Dwibedi, Jeremy Jackson, and James West. Macro-Level Institutions and Micro-Level Economic Behavior: A Meta-Meta Analysis of 1,126 Studies. National Bureau of Economic Research, 2024. http://dx.doi.org/10.3386/w33129.

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Hernández-Leal, Germán Humberto. Marco conceptual, evolución y estructura social del departamento del Meta. Banco de la República, 2005. http://dx.doi.org/10.32468/eser.31.

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Kumar, Ritesh, Stephen Grady, Harry Jonas, Stephen Woodley, and Nigel Dudley. Otras medidas eficaces de conservación basadas en áreas (OMEC) para la conservación y el uso racional de los humedales. Convención sobre los Humedales, 2025. https://doi.org/10.69556/strp.bn14.25.es.

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El papel y la importancia de las otras me didas eficaces de conservación basadas en áreas (OMEC) han sido reconocidos formalmente a escala internacional por las Partes Contratantes del Convenio sobre la Diversidad Biológica (CDB) a través de la decisión 14/8 (que incluye los criterios para la identificación de las OMEC) a lo que se añaden las orientaciones inter nacionales de la UICN sobre las mejores prácticas para identificar, reconocer, supervisar e informar sobre las OMEC, incluida una herramienta de selección de sitios gestionados como OMEC. Esta Nota Informativa tiene por objeto ayudar a

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Granados, Jaime. La integración comercial centroamericana: Un marco interpretativo y cursos de acción plausible. Inter-American Development Bank, 2001. http://dx.doi.org/10.18235/0009673.

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En octubre de 1993, los cinco países de Centroamérica (Costa Rica, El Salvador, Guatemala, Honduras y Nicaragua) suscribieron en Guatemala el Protocolo al Tratado General de Integración Económica Centroamericana (Protocolo de Guatemala). Este instrumento pretendió actualizar la integración centroamericana y aspira a señalar un camino que adecúe este esquema de integración a las necesidades y presiones de un mundo muy diferente al de 1960, fecha en que se suscribió el Tratado General. El Protocolo establece una agenda ambiciosa que busca profundizar la integración comercial, económica, monetari

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Chetty, Raj, Adam Guren, Dayanand Manoli, and Andrea Weber. Does Indivisible Labor Explain the Difference Between Micro and Macro Elasticities? A Meta-Analysis of Extensive Margin Elasticities. National Bureau of Economic Research, 2011. http://dx.doi.org/10.3386/w16729.

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Santiago, Ana, Marcelo Cabrol, Marcelo Pérez Alfaro, Gádor Manzano, Mariana Alfonso, and Emma Näslund-Hadley. Enfoques creativos para aprender matematicas y ciencias naturales: Resultados preliminares de proyectos apoyados por el Banco Interamericano de Desarrollo en el marco de las Metas Educativas 2021. Inter-American Development Bank, 2011. http://dx.doi.org/10.18235/0010285.

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Con motivo de la adopción de las metas educativas 2021 durante el Congreso Iberoamericano de Educación 2010, el Banco Interamericano de Desarrollo (BID) desea resaltar la importancia de la calidad de la educación en matemáticas y ciencias naturales. Esta publicación presenta una serie de proyectos lanzados recientemente que proponen enfoques innovadores para los procesos de enseñanza en matemáticas y ciencias naturales. Algunos ya dan muestras de haber contribuido a mejorar las prácticas pedagógicas, los conocimientos de los docentes y el aprendizaje de los alumnos.

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Terraza, Horacio. Manejo de Residuos Sólidos: Lineamientos para un Servicio Integral, Sustentable e Inclusivo. Inter-American Development Bank, 2009. http://dx.doi.org/10.18235/0009683.

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El sector de residuos sólidos es un objetivo estratégico de intervención para la Iniciativa de Agua y Saneamiento del Grupo Banco Interamericano de Desarrollo (BID). En este documento se desarrollan los lineamientos estratégicos para el sector, se identifican las necesidades regionales, se elaboran principios rectores, y se establecen metas, recursos y acciones prioritarias con el fin de dar respuesta a la demanda de los clientes. Estos lineamientos constituyen el capítulo para el manejo residuos sólidos de la Iniciativa de Agua y Saneamiento del BID. En tal sentido, se respeta la definición d

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Quijandría, Benjamín, Diego Lizana, Annie Dufey, and Osvaldo Urzúa. Hacia una cadena de suministro para una minería carbono-neutral en el Perú: Estimación de emisiones de alcance 3. Inter-American Development Bank, 2024. http://dx.doi.org/10.18235/0012865.

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Debido a la transición energética y las metas para alcanzar la carbono neutralidad se han instalado en la agenda de países y empresas relacionadas a la industria minera, la necesidad de medir su huella de carbono y promover acciones y políticas públicas y privadas para mitigar las emisiones de GEI, tanto directas como indirectas. En este contexto, el presente documento plantea un marco teórico para la medición de emisiones de alcance 3 en la minería de cobre del Perú (las que se originan en la cadena de suministro minera) que a partir de los distintos procesos permita identificar los insumos c

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Monsalve Prada, Mónica Janeth, and Rosa Amalia Martínez Ospina. Objetivos de desarrollo sostenible. Ediciones Universidad Cooperativa de Colombia, 2023. http://dx.doi.org/10.16925/gcnc.77.

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Desde hace algunas décadas, los Gobiernos han manifestado interés en el desarrollo sostenible de sus Estados, sin embargo, en sus inicios, no fueron presentadas ningunas propuestas de trabajo o planteamiento de acciones específicas. En el 2000, se desarrolló la reunión denominada Cumbre del Milenio, organizada por las Naciones Unidas. En esta Cumbre, llegaron a acuerdos relacionados con metas y objetivos que pudieran ser alcanzables a nivel mundial y se establecieron plazo para el logro de estas metas. A esto le llamaron “objetivos de desarrollo del milenio”. En septiembre del 2015, la As

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