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Journal articles on the topic 'Qualité graphique'

Author: Grafiati

Published: 27 July 2024

Last updated: 31 July 2025

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1

Maallem, S., E. Lanoy, S. Postel-Vinay, and A. Moussa. "Interface graphique validant la qualité des données cliniques saisies dans Excel." Revue d'Épidémiologie et de Santé Publique 62 (September 2014): S237—S238. http://dx.doi.org/10.1016/j.respe.2014.06.215.

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Ross, John. "Data is power: resistance is futile." CJEM 2, no. 01 (2000): 27–28. http://dx.doi.org/10.1017/s1481803500004395.

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RÉSUMÉ: Le mouvement d’ACQ (amélioration continue de la qualité), avec l’aide d’Intel et de Microsoft, fera de la prochaine décennie l’ère des données. Les départements d’urgence à travers le pays travaillent présentement à mettre sur pied des systèmes de collecte de données pour surveiller les profils de gravité des cas des patients, les temps d’attente, les durées de séjours à l’urgence, les habitudes de demandes d’épreuves, les pourcentages de demandes de consultation, l’utilisation des lits et les taux d’hospitalisation, et ce, pour chaque médecin. Mais ces données sont-elles fiables? Ou v

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Gharbi, Mohamed, and Mohamed Aymen Labiod. "Une application comparative pour l’enseignement des méthodes de compression d’images par transformées orthogonales." J3eA 21 (2022): 2039. http://dx.doi.org/10.1051/j3ea/20222039.

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Nous proposons dans cette contribution une interface graphique comme outil pédagogique pour l’enseignement des méthodes de compression par transformées orthogonales utilisées dans l’encodage d’images. Cet outil est utilisé dans l’enseignement proposé aux étudiants en MASTER du département Développement, Recherche, Enseignement en Audiovisuel et Multimédia (DREAM) de l’Université Polytechnique Hauts-de-France (Valenciennes – France). Les offres de formation s’appuient notamment sur un enseignement du traitement de signal, des images ainsi que la compression des images et de la vidéo. Les deux a

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Piriou, P., S. Dukan, Y. Levi, F. Guyon, and P. Villon. "Modélisation du comportement des biomasses bactériennes libres et fixées dans les réseaux de distribution d'eau potable." Revue des sciences de l'eau 9, no. 3 (2005): 381–406. http://dx.doi.org/10.7202/705259ar.

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La prolifération bactérienne en réseaux de distribution d'eau potable est un souci majeur des distributeurs d'eau. La complexité des phénomènes impliqués dans la croissance bactérienne en réseaux nécessite une modélisation mathématique pour définir l'impact des différents paramètres de la qualité de l'eau et généraliser ces résultats à l'échelle du réseau de distribution. Une approche déterministe a été choisie pour développer cette modélisation prédictive de la croissance bactérienne dans les systèmes de distribution. Le modèle prend en compte : la croissance de fa biomasse libre et de la bio

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BESNIER, M., M. GUITTET, P. BINDER, and J. MAUHOURAT. "addictovideos.fr : un référentiel de vidéo en ligne en addictologie." EXERCER 34, no. 197 (2023): 414–19. http://dx.doi.org/10.56746/exercer.2023.197.414.

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Contexte. Les addictions sont la première cause évitable de mortalité avant 65 ans en France. Les vidéos sur internet sont un mode de communication en plein essor permettant une meilleure communication entre médecins généralistes et patients. La qualité de celles-ci est variable. Objectif. Créer un site internet rassemblant et classant les vidéos abordant les addictions. Mé thodes. Une revue des vidéos traitant de « l’addiction », durant moins de dix minutes, de langue francophone, a été réalisée sur moteur de recherche puis sur des plateformes de vidéos gratuites (YouTube®, Dailymotion® et Vi

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Coquelin, A., M. Erbault, N. Le Guen, A. Solomiac, S. Morin, and L. May-Michelangeli. "Intérêt de la représentation graphique de la variabilité régionale des résultats des indicateurs de qualité des parcours pour orienter les politiques de santé régionales." Revue d'Épidémiologie et de Santé Publique 71 (March 2023): 101527. http://dx.doi.org/10.1016/j.respe.2023.101527.

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Pierre, UTCHINGA WELA. "APPORT DE MARKETING STRATEGIQUE SUR LA FIDELISATION DE LA CLIENTELE AU CENTRE HOSPITALIER LUMBULUMBU." IJRDO - Journal of Business Management 8, no. 11 (2022): 8–21. http://dx.doi.org/10.53555/bm.v8i11.5445.

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Le souci majeur qui nous a poussés à réaliser cette recherche est celui de plaintes de clients du Centre Hospitalier Lumbulumbu sur le prix de soins médicaux qui n’est pas adapté aux conditions socio-écomiques de la population se trouvant dans cette ville, au vu de cette réalité nous proposons d’appliquer le marketing relationnel et événementiel sur la fidélisation de la clientèle au CHLL, la question suivante a été formulé : quelles actions marketing que le Centre Hospitalier Lumbulumbu doit-il mener pour fidéliser ses patients conventionnés et privés ? Pour mener cette recherche à bon port n

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8

AKA, Natchia, Abou Traoré, Nadi Paul Dangui, and Yao Dakro Albert Gboko. "Suivi de la turbidité et des matières en suspension dans les rivières côtières en milieu tropical : cas de la Mé et de l’Agneby (sud-est de la Cote d’Ivoire)." Journal of Applied Biosciences 183 (March 31, 2023): 19103–22. http://dx.doi.org/10.35759/jabs.183.1.

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Au Sud de la Côte d’Ivoire, l’État fait recours aux rivières côtières Mé et Agnéby pour pallier le déficit en eau potable destinée aux populations. Cependant, la forte turbidité et les concentrations élevées des matières en suspension dans ces cours d’eaux sont des indicateurs de la dégradation de leur qualité. Objectif Cette étude vise à évaluer la dynamique de la turbidité et des Matières en Suspension (MES) au cours du temps. Méthodologie et Résultats Pour ce faire, des mesures journalières de turbidité et de MES ont été réalisées sur un total de 277 échantillons d’eau prélevés dans la Mé e

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Hopman, W. M., M. B. Harrison, H. Coo, E. Friedberg, M. Buchanan, and E. G. VanDenKerkhof. "Liens existant entre les maladies chroniques, l’âge et l’état de santé physique et mental." Maladies chroniques au Canada 29, no. 3 (2009): 121–31. http://dx.doi.org/10.24095/hpcdp.29.3.03f.

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Le présent article examine les liens existant entre les maladies chroniques, l’âge et la qualité de vie liée à la santé (QVLS) physique et mentale, à l’aide de données recueillies dans le cadre de dix études portant sur cinq maladies chroniques. La QVLS a été mesurée à l’aide du SF-36 ou de sa version sommaire, le SF-12. Les scores du Sommaire de la composante physique (SCP) et du Sommaire de la composante mentale (SCM) ont été représentés sur un graphique selon la maladie chronique, par groupes d’âge de 10 ans, et comparés avec des données normatives ajustées en fonction de l’âge et du sexe.

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Cléry, Isabelle, and Marc Pierrot-Deseilligny. "Une interface ergonomique de calcul de modèles 3D par photogrammétrie." Revue Française de Photogrammétrie et de Télédétection, no. 196 (April 15, 2014): 40–51. http://dx.doi.org/10.52638/rfpt.2011.36.

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De nombreux logiciels du commerce proposent de créer des modélisations en 3D d'objets ou de scènes à partir uniquement de photographies. Cependant les professionnels, notamment les archéologues et les architectes, ont un certain nombre de contraintes qui restreignent fortement le choix du logiciel, telles que des ressources financières limitées, des connaissances peu approfondies en photogrammétrie et en informatique, des impératifs qui limitent le temps d'acquisition et de traitement, et enfin des attentes précises en terme de qualité, de précision et de complétude de la modélisation. Le labo

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Andriamanampisoa, Tsiry A., Jemima Andrianarison, Harry Chaplin, Andrew Ward, and Edouard Andrianarison. "Utilisation de l’ATP- Métrie comme Mesure Instantanée de la Qualité de l’Eau dans un Système de Collecte des Eaux de Pluie." International Journal of Progressive Sciences and Technologies 36, no. 1 (2022): 381. http://dx.doi.org/10.52155/ijpsat.v36.1.4866.

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L’ATP-Métrie, par l’analyse instantanée de l’ATP libre, de l’ATP Total et par conséquent de l’ATP Microbien (ATP Total — ATP libre), permet une évaluation rapide de la quantité de cellules vivantes, de particules non microbiennes et de particules microbiennes dans un échantillon d’eau. Lors des deux visites sur site des installations de l’Entreprise Sociale Tatirano concernant le système de récupération d’eau de pluie dans le Sud Est de Madagascar, côté Fort-Dauphin, une recherche de remplacement des analyses longues a été menée. Il s’agissait du comptage des colonies de coliformes thermotolér

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12

Nero, Marcelo Antonio, Rodrigo Amaral Lapa, and Simone Sayuri Sato. "Proposta de uma metodologia economica para o desenvolvimento de SIG 3D." Revue Française de Photogrammétrie et de Télédétection, no. 198-199 (April 21, 2014): 71–77. http://dx.doi.org/10.52638/rfpt.2012.74.

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Le développement d’un système d’informations géografiques (SIG) tridimensionnel a besoin d’importer des éléments solides créés en trois dimensions. L’acquisition de ces éléments est généralement effectuée au moyen d’un LIDAR (Light Detection And Ranging). Une autre possibilité est la cartographie des façades de bâtiments, qui en règle générale est réalisée par la prise d'images géocodées au moyen d’un GPS et d’un système inertiel. Ensuite, un laborieux travail d'édition graphique doit être effectué. Evidemment, si le niveau de détail de la représentation des éléments est plus grand, le temps e

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Inusa, S. K., and B. F. Muhammad. "Evaluation of sensory properties of Kilishi prepared from fermented cattle and camel beef in Semi-arid Nigeria." Nigerian Journal of Animal Production 48, no. 5 (2021): 113–23. http://dx.doi.org/10.51791/njap.v48i5.3191.

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Meat fermentation is an important processing method with enormous nutritional and health benefits. A study was conducted to examine the sensory properties of fermented cattle and camel beef Kilishi. The effects of meat type, age and packaging on this meat quality attribute were evaluated. The experimental meat samples were fermented before utilized in Kilishi processing. The chunks of meat were sliced and then inoculated with lactic meat starter culture at three concentrations (2.5, 5.0 and 7.5 g /100 ml w/v). Kilishi samples for the sensory assessment were taken from each product lot. The exp

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14

Pelard, Emmanuelle. "Le nomadisme du signe dans les « pseudographies » de Christian Dotremont et d’Henri Michaux." Cygne noir, no. 1 (July 26, 2022): 36–52. http://dx.doi.org/10.7202/1090994ar.

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Cet article souligne les limites d’une approche sémiologique dualiste à l’épreuve d’oeuvres autant plastiques que littéraires qui présentent des signes hybrides – c’est-à-dire disposant, à la fois ou successivement, de qualités iconiques, plastiques et scripturales. Il est difficile de saisir le régime sémiotique à l’oeuvre dans le logogramme de Christian Dotremont et dans les idéogrammes imaginaires d’Henri Michaux si l’on ne considère pas le glissement permanent d’un ordre de signes à un autre, voire la double appartenance simultanée, plastique et graphique, de certains d’entre eux. Contrari

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15

Illarionov, I. E., T. R. Gilmanshina, and A. A. Kovaleva. "Perspective Methods of Graphite Quality Improving." Materials Science Forum 946 (February 2019): 650–54. http://dx.doi.org/10.4028/www.scientific.net/msf.946.650.

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The influence of various methods of activation on the graphite particles average size and micro-relief of particles have been studied. It has been experimentally proved that the size of graphite particles decreases after the process of mechano-activation, however graphite particles don’t change significantly after being processed by chemical activation. It should be noted that in the course of chemical activation the state of particles surface varies on shearing cuts. Particles’ surface can be described as a poly stratified system, comprising separate complex-structured buildups of the “rosett

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16

Silva, Catarina, João M. P. Coelho, Manuel A. Abreu, J. Cabrita Freitas, and Campos Rodrigues. "Quality Control of Fuel Cells Channels." Materials Science Forum 514-516 (May 2006): 442–46. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.442.

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The methods of dimensional control for solid surfaces are usually contact methods. However, in fragile and reduced hardness surfaces, these methods present critical disadvantages. The method presented in this work aims to offer resources for the optimization of graphite components machined with laser through the measurement of the channels’ depth and shape. In this scope, the laser triangulation technique demonstrated to be a very useful tool in the quality control of graphite diffusers plates for fuel cell prototyping and in their future production.

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Sun, Chuanyao, Shifu Shen, Wenli Wang, Guohui Yuan, Zhenghong Huang, and Yihe Zhang. "High Quality Development of Graphite Resource and Graphite Material Industry." Chinese Journal of Engineering Science 24, no. 3 (2022): 29. http://dx.doi.org/10.15302/j-sscae-2022.03.004.

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18

Hrebelna, Yu V., E. M. Demianenko, M. I. Terets, et al. "Synthesis and physico-chemical properties of high-quality expanded graphite." Himia, Fizika ta Tehnologia Poverhni 15, no. 3 (2024): 378–89. http://dx.doi.org/10.15407/hftp15.03.378.

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The purpose of the work is to establish the possibility of obtaining expanded graphite of high purity (carbon content more than 99.5 % wt.) from flotation-enriched graphite (carbon content 94–97 % wt.) by combining into one process intercalation of graphite with a solution of potassium dichromate in concentrated sulfuric acid with subsequent hydrolysis, and chemical purification using solutions of ammonium bifluoride in sulfuric or hydrochloric acid and Trilon B in an alkaline buffer as purification reagents, and to confirm this possibility by quantum chemical calculations. It has been experim

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19

Lee, Hee Jun, Hee Tae Lee, Hee Won Shin, et al. "Effect of Porous Graphite for High Quality SiC Crystal Growth by PVT Method." Materials Science Forum 821-823 (June 2015): 43–46. http://dx.doi.org/10.4028/www.scientific.net/msf.821-823.43.

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The effect of the porous graphite plate above the source material on properties of silicon carbide (SiC) crystals grown by Physical Vapor Transport method has been investigated. The porous graphite plate was inserted on source powder to produce a more C-rich for the polytype stability of 4H-SiC crystal and a uniform radial temperature gradient. The dendrite structure obtained from SiC source powder in the crucible with porous graphite plate was more densely formed than that in the conventional crucible. The crystal quality of 4H-SiC single crystals grown in porous graphite inserted crucible wa

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Kropivna, Alena, and Olexandr Kuzyk. "Analysis and Harmonization of National and International Quality Standards for Compacted Graphite Cast Irons." Central Ukrainian Scientific Bulletin. Technical Sciences, no. 3(34) (October 2020): 88–95. http://dx.doi.org/10.32515/2664-262x.2020.3(34).88-95.

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Ensuring and coordination of high quality indicators of materials in the foundry industry is necessary in the development of Ukraine's economy. High quality products need to be enshrined in new national standards, harmonized with international and European standards. Thus, the purpose of this work is to analyze national and international standards for quality indicators of vermicular graphite iron and their harmonization with each other. The foundry industry of Ukraine has developed mainly with the use of interstate standards - GOST, which differ significantly from European and international a

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Grushevski, E., D. Savelev, L. Mazaletski, N. Savinski, and D. Puhov. "The scalable production of high-quality nanographite by organic radical-assisted electrochemical exfoliation." Journal of Physics: Conference Series 2086, no. 1 (2021): 012014. http://dx.doi.org/10.1088/1742-6596/2086/1/012014.

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Abstract One of the promising ways to produce graphene is the technology of graphite splitting or exfoliation, both by physical or mechanical and chemical, including electrochemical methods. The product of electro exfoliation is nanographite, which is transformed into multigraphene at the subsequent stage of liquid-phase mechanical and ultrasonic disintegration. This approach demonstrates a successful method of obtaining multigraphene from available graphite raw materials. Since, already at a potential of 1.23V, during the electrolysis of water on a graphite anode, the hydroxyl anion is discha

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Shin, Hee Won, Hee Jun Lee, Hwang Ju Kim, et al. "The Role of Porous Graphite Plate for High Quality SiC Crystal Growth by PVT Method." Materials Science Forum 858 (May 2016): 113–16. http://dx.doi.org/10.4028/www.scientific.net/msf.858.113.

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The present research is focused to investigate a role of the porous graphite (PG) plate that could improve the quality of 4H-SiC crystal. The grown crystal in porous graphite inserted crucible showed the lower intensity of Al, B and Ti impurity concentration than SiC crystal grown in conventional crucible. The porous graphite plate before and after the growth process has been investigated by a Raman spectroscopy and a photoluminescence spectrum (PL). According to the analysis result, it was confirmed that the porous graphite plate had the effect of suppressing impurities supplied to SiC single

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Choi, Jeong Min, Chae Young Lee, Dae Sung Kim, et al. "New Materials for Semi-Insulating SiC Single Crystal Growth by PVT Method." Materials Science Forum 963 (July 2019): 46–50. http://dx.doi.org/10.4028/www.scientific.net/msf.963.46.

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The present research was focused on the effect of porous graphite plate in TaC-coated crucible on crystal quality and resistivity of semi-insulating SiC crystals. Two SiC crystals grown with/without porous graphite plate in TaC-coated crucible were systematically compared. 6H-SiC polytype was obtained on both crystals regardless of porous graphite plate. The quality of SiC crystal grown using porous graphite plate placed in the TaC-coated crucible was slightly better than SiC crystal without porous graphite plate. SiC crystals having an average resistivity value of about 1×1010 Ωcm were obtain

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Trolles-Cavalcante, Shimon Y. T., Asmita Dutta, Zdenek Sofer, and Arie Borenstein. "The effectiveness of Soxhlet extraction as a simple method for GO rinsing as a precursor of high-quality graphene." Nanoscale Advances 3, no. 18 (2021): 5292–300. http://dx.doi.org/10.1039/d1na00382h.

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25

Piercey, Stephen J. "Modern Analytical Facilities 2. A Review of Quality Assurance and Quality Control (QA/QC) Procedures for Lithogeochemical Data." Geoscience Canada 41, no. 1 (2014): 75. http://dx.doi.org/10.12789/geocanj.2014.41.035.

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Quality assurance and quality control (QA/QC) are critical components of modern analytical geochemistry. A properly constructed QA/QC program identifies both the source of analytical error and provides a means of establishing confidence in and assessing limitations of analytical data. A QA/QC program involves monitoring precision, accuracy, and potential contamination from sampling to analysis. Precision can be monitored via the systematic insertion of sample, pulp, and analytical duplicates, and reference materials; the resulting data are subsequently evaluated using scatterplots, statistical

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Manoratne, C. H., S. R. D. Rosa, and I. R. M. Kottegoda. "XRD-HTA, UV Visible, FTIR and SEM Interpretation of Reduced Graphene Oxide Synthesized from High Purity Vein Graphite." Material Science Research India 14, no. 1 (2017): 19–30. http://dx.doi.org/10.13005/msri/140104.

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Attempts were made to synthesize high quality graphite oxide (GO) and reduced graphene oxide (rGO) by using successive oxidation-reduction process of high quality vein graphite from Sri Lanka. We report the lowest optimum reduction temperature for converting GO to rGO which has been systematically studied using X-ray diffraction spectroscope (XRD) with the high temperature heating attachment (HTA) for the first time. The effect of particle size of graphite on properties of GO and rGO is also compared using commercially available graphite of particle size of ~111 mm and ball-milled graphite of

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Ivanov, V., and M. Matveishyn. "ANALYSIS OF THE GRAPHITE PHASE IN CENTRIFUGED BILLIONS MADE OF HIGH-QUALITY CAST IRON." New Materials and Technologies in Metallurgy and Mechanical Engineering, no. 2 (June 20, 2023): 26–31. http://dx.doi.org/10.15588/1607-6885-2023-2-4.

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Purpose. To determine the characteristic geometric parameters of spherical graphite inclusions in the cross-section of a cast iron billet for piston rings. Research methods. A cylindrical blank for piston rings was obtained by the centrifugal method. The chemical composition of the blank according to the ВЧ 500-2 brand (DSTU 3925-99). To obtain spherical graphite, nickel-magnesium ligature (15 % Mg) and secondary graphitizing modification with ferrosilicobarium ФС65Ба4 were used. The amount of each additive was 1.0 % of the metal mass. Spherical graphite was evaluated according to GOST 3

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Ghersi, Véronique, Amandine Rosso, Sophie Moukhtar, et al. "Origine des particules fines (PM2.5) en Ile-de-France." Pollution atmosphérique, NS 5 (November 1, 2012): 189–99. http://dx.doi.org/10.54563/pollution-atmospherique.7497.

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Dans une région marquée par des dépassements chroniques des valeurs réglementaires à proximité du trafic routier et certaines années en fond au centre de l’agglomération, l’identification des sources de particules fines est indispensable à la mise en place de politiques visant à diminuer leurs concentrations en Ile-de-France. Airparif a mis en œuvre, en collaboration avec le LSCE (Laboratoire des Sciences du Climat et de l’Environnement), une vaste étude de caractérisation chimique des particules afin d’améliorer nos connaissances sur l’origine géographique et la contribution des différentes s

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Moye, Charles D., and Michael M. Msabi. "Mineralogical and geochemical characteristics of graphite-bearing rocks at Chenjere Area, south-eastern Tanzania: Implications for the nature and quality of graphite mineralization." Tanzania Journal of Science 47, no. 2 (2021): 535–51. http://dx.doi.org/10.4314/tjs.v47i2.11.

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This study focused on the mineralogical and geochemical characteristics of graphite-bearing rocks at Chenjere area by conducting surface geological mapping, geochemical and petrographical analyses with the intention of characterizing the nature of graphite occurrence in these lithological units. This paper presents results of the flake size, grade and mineralization extension of graphite in the graphitic gneiss. Field observations, petrographic investigation and comparison with other studies indicate that graphite occurrence at the Chenjere area is of sedimentary origin which fall under syngen

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Silva, Dayane Cristine da, Túlio de Almeida Machado, Danielle de Paula Oliveira, et al. "INFLUENCE OF THE USE OF GRAPHITE ON THE QUALITY OF SWEET CORN SOWING." COLLOQUIUM AGRARIAE 20, no. 1 (2024): 1–15. http://dx.doi.org/10.5747/ca.2024.v20.a534.

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The propagation process of sweet corn (Zea mays L. saccharata group) is carried out through seeding. For good quality in this process, the operating speed and graphite dosage must be assertive for a greater plant stand and seed distribution and depth. Given the above, this research aimed to analyze three different operating speeds and the influence of graphite dose to evaluate the effects on plantability in sweet corn. A John Deere 4 x 2 TDA tractor with a nominal power of 78 kW (106 hp) and a Netz model PDN 6000 seeder were used to carry out the sowing. The area was part of an 18-hectare cent

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Popova, O. V., A. M. Serbinovskii, and O. E. Shkurakova. "Graphite Bisulphate and Thermal Expanded Graphite from Lignin." Electrochemical Energetics 10, no. 1 (2010): 43–47. http://dx.doi.org/10.18500/1608-4039-2010-10-1-43-47.

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Pathbreaking studies of electrochemical graphite bisulphate synthesis from artificial graphite produced from hydrolyzed lignin and further production of high quality thermal expanded graphite are described. The studies show that any oxidation level can be achieved as well as over oxidized graphite may be produced at graphite bisulphate synthesis. Parameters of graphite bisulphate synthesis and thermal expanded graphite parameters are close to those of graphite bisulphate and thermal expanded graphite produced from natural graphite's. The article also describes results of microstructure and ele

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Lukic, Vladimir, Milica Spasojevic, Milentije Lukovic, Miroslav Spasojevic, and Aleksa Maricic. "Hydrogen adsorption process in nanocrystalline nuclear graphite." Nuclear Technology and Radiation Protection 37, no. 1 (2022): 11–17. http://dx.doi.org/10.2298/ntrp2201011l.

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Kinetics and mechanism of hydrogen adsorption in as-obtained and ground nuclear graphite Wendelstein 7-X are examined. In the first time interval the adsorption process is determined by dissociation of the hydrogen molecule, occurring at the outer surface and in open micropores of nuclear graphite particles. However, in the second time interval, the slowest step in the hydrogen adsorption is inter-granular and inter-crystallite diffusion in nanopores of graphite. The X-ray analysis shows, that grinding of as-obtained nuclear graphite results in finer particles with finer nanocrystals and large

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Tran, Tuan Sang, Seung Jun Park, Sung Sic Yoo, Tae-Rin Lee, and TaeYoung Kim. "High shear-induced exfoliation of graphite into high quality graphene by Taylor–Couette flow." RSC Advances 6, no. 15 (2016): 12003–8. http://dx.doi.org/10.1039/c5ra22273g.

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A scalable method to produce high-quality graphene by shear-exfoliation of graphite is presented. High shear mixing of graphite in the Taylor vortex flow regime allows for the bulk production of few-layer graphene with low content of defects.

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Wieczorska, Agata, Katarzyna Panasiuk, and Sylwia Bazychowska. "Influence of Graphite as a Filler on Selected Mechanical and Structural Properties of Layered Composites with Polyester-Glass Recyclate." Journal of KONBiN 52, no. 2 (2022): 1–22. http://dx.doi.org/10.2478/jok-2022-0011.

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Abstract The search for recycling methods of composite materials indicated the possibility of using composites with polyester-glass recyclate as structural elements. The main aim of the article was to analyse the influence of the graphite percentage content on the mechanical and structural properties of such composites. Composite materials were made by hand laminating with 10% polyester-glass recyclate and graphite nano-additive. Samples for the static tensile test were prepared, which was carried out in accordance with the applicable standard on a universal testing machine. The obtained resul

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Kadhim, Mohamed Ali, Hussain Al Ali Jalal Ghuloom, Garry Martin, and Michael Jacobs. "Aluminium Bahrain - Benefits at ALBA from Use of Improved Graphite Rings for Production of Extrusion Ingots." Materials Science Forum 630 (October 2009): 251–57. http://dx.doi.org/10.4028/www.scientific.net/msf.630.251.

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Surface quality and metallurgical characteristics of extrusion ingot have a significant impact on the extrudability of the billet. Both the type of casting mould and mould maintenance significantly influences billet surface quality. ALBA, like the majority of extrusion ingot producers, uses moulds with graphite technology, where a mix of oil and gas is injected through a graphite ring into the mould to improve billet surface quality. ALBA has a policy of continual improvement in the areas of safety, product quality and productivity to enhance customer satisfaction. During 2008, an extensive ca

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Toledo, Juan, Felipe Diaz, Matías Peralta, and Diego Fernandino. "High-quality nodule analysis in spheroidal graphite cast iron using X-ray micro-computed tomography." Frattura ed Integrità Strutturale 16, no. 62 (2022): 279–88. http://dx.doi.org/10.3221/igf-esis.62.20.

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This work is a continuation of the studies presented in a recent paper by the authors, where a methodology to obtain different nodule quality categories in spheroidal graphite cast iron, was proposed. In this study, an exhaustive analysis of the highest-quality graphite nodules was performed. The experimental methodology involves X-ray micro-computed tomography analysis and digital image post-processing of the high-quality graphite nodule population. Furthermore, different subpopulations were selected, following a nodular size criterion. The procedure involves the evaluation and comparison of

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Krebbers, Leonard T., Bernd G. Lottermoser, and Xinmeng Liu. "Computed Tomography of Flake Graphite Ore: Data Acquisition and Image Processing." Minerals 13, no. 2 (2023): 247. http://dx.doi.org/10.3390/min13020247.

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A solid knowledge of the mineralogical properties (e.g., flake size, flake size distribution, purity, shape) of graphite ores is necessary because different graphite classes have different product uses. To date, these properties are commonly examined using well-established optical microscopy (OM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) and SEM-based automated image analysis. However, these 2D methods may be subject to sampling errors and stereological effects that can adversely affect the quality of the analysis. X-ray microcomputed tomography (CT) is

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Pietrowski, S. "Wearing Quality of Austenitic, Duplex Cast Steel, Gray and Spheroidal Graphite Iron." Archives of Foundry Engineering 12, no. 2 (2012): 235–44. http://dx.doi.org/10.2478/v10266-012-0067-0.

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Wearing Quality of Austenitic, Duplex Cast Steel, Gray and Spheroidal Graphite Iron The current work presents the research results of abrasion wear and adhesive wear at rubbing and liquid friction of new austenitic, austenitic-ferritic ("duplex") cast steel and gray cast iron EN-GJL-250, spheroidal graphite iron EN-GJS-600-3, pearlitic with ledeburitic carbides and spheroidal graphite iron with ledeburitic carbides with a microstructure of the metal matrix: pearlitic, upper bainite, mixture of upper and lower bainite, martensitic with austenite, pearlitic-martensitic-bainitic-ausferritic obtai

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PACANA, Andrzej, and Karolina CZERWIŃSKA. "ANALYSIS OF QUALITY CONTROL OF THE GRAPHITE PROCESS ON THE EXAMPLE OF A COMPANY FROM THE AUTOMOTIVE INDUSTRY." Scientific Papers of Silesian University of Technology. Organization and Management Series 2019, no. 134 (2019): 171–80. http://dx.doi.org/10.29119/1641-3466.2019.134.13.

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VOLCHUK, V. M., N. V. KASHYNA, M. A. KOTOV, A. M. HAIDAR, and D. O. KASHYN. "CALCULATION OF MATERIAL QUALITY CRITERIA USING FRACTAL THEORY." Physical Metallurgy and Heat Treatment of Metals, no. 2 (101) (October 21, 2023): 20–28. http://dx.doi.org/10.30838/j.pmhtm.2413.040723.20.980.

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Problem statement. Changing the parameters of standard technology can significantly change the properties of rolled iron in a wide range of values. Regulatory and technical industry documentation regulates only the hardness indicators of cast iron rolls, and the requirements for mechanical characteristics and wear resistance are not indicated due to the influence of many technological parameters. Therefore, an important aspect is the prediction for quality indicators of cast iron due to the use of mathematical modeling, in particular the theory of fractals. Materials and methods. Cast iron rol

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Palosaari, J., R.-M. Latonen, J.-H. Smått, S. Raunio, and O. Eklund. "The flake graphite prospect of Piippumäki—an example of a high-quality graphite occurrence in a retrograde metamorphic terrain in Finland." Mineralium Deposita 55, no. 8 (2020): 1647–60. http://dx.doi.org/10.1007/s00126-020-00971-z.

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Abstract The flake graphite occurrence in Piippumäki, Eastern Finland, as indicated by an airborne electromagnetic anomaly, was located during fieldwork by electromagnetic measurements with Slingram. The anomaly is approximately 0.1 × 1 km in size. The flake graphite is hosted by quartz-feldspar gneiss and amphibolite that have been subjected to retrograde metamorphism. This is observed in thin sections as granulite facies (garnet + cordierite + sillimanite + melt) regressing to greenschist facies (epidote, chlorite, albite, and white mica). The graphite (up to 1 mm large flakes) is found in g

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Tursunov, A. S., and U. M. Turdaliev. "Welding Electrodes on the Basis of the Graphite Materials." Modern Trends in Construction, Urban and Territorial Planning 3, no. 4 (2025): 82–86. https://doi.org/10.23947/2949-1835-2024-3-4-82-86.

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Introduction. In the context of global competition, the high-quality products of the enterprises from the developed countries occupy the leading positions in the world markets, which causes the growth of demand for graphite products. Graphite, due to its unique properties, is used in various industries, including the production of high-temperature furnaces, electrodes for welding and cutting, as well as in battery production technology. The aim of the study is to investigate and analyse the properties of graphite electrodes, their application in welding processes and to evaluate their competit

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Legkiy, N. M. "Improvement of Semiconductors Quality Using Isotopic Nanoengineering." Key Engineering Materials 854 (July 2020): 74–79. http://dx.doi.org/10.4028/www.scientific.net/kem.854.74.

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The article covers a solution of a modern electronics problem: improvement of data transmission device speed using the example of fiber-optic communication lines (FOCL). The data processing rate and throughput of transmission channels are determined by capabilities of the optoelectronics and, first of all, by the performance of its hardware components. The article presents all possible ways to improve the performance of FOCL. Design and production of communication devices moves to the nanotechnological level that opens up new possibilities for creation of semiconductors with advanced character

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Sun, X. J., Y. X. Li, and X. Chen. "Controlling melt quality of compacted graphite iron." Materials Science and Engineering: A 466, no. 1-2 (2007): 1–8. http://dx.doi.org/10.1016/j.msea.2007.05.016.

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Chaika, E. F., I. G. Maryasev, and A. A. Platonov. "Graphite. Evaluation of Quality for Refractory Industry." Refractories and Industrial Ceramics 57, no. 5 (2017): 449–61. http://dx.doi.org/10.1007/s11148-017-0003-5.

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Volchuk, Volodymyr, and Sergii Kroviakov. "Method of material quality estimation with usage of multifractal formalism." Tehnički glasnik 12, no. 2 (2018): 93–97. http://dx.doi.org/10.31803/tg-20180302115027.

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Feasibility of application of multifractal theory for evaluation of materials mechanical properties, cast iron in particular, has been considered. The proposed method enables evaluation of mechanical properties of materials based on determination of their sensitivity to dimensions of structure elements from the multifractal Renyi spectrum. Sensitivity of cast iron ultimate strength to informational dimension of carbides, ultimate bending strength to fractal dimension of carbides, impact strength to correlation dimension of carbides and hardness to fractal dimension of graphite have been determ

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Wang, Xin, and Long Zhang. "Green and facile production of high-quality graphene from graphite by the combination of hydroxyl radical and electrical exfoliation." RSC Advances 8, no. 71 (2018): 40621–31. http://dx.doi.org/10.1039/c8ra07880g.

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A novel, simple and efficient method, involving the combination of hydroxyl radicals and electrical exfoliation of graphite for the green production of high-quality graphene from graphite, was developed for the first time.

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Kutyaeva, K. M., E. G. Cheblakova, Yu A. Malinina, A. A. Shvetsov, and N. Yu Beylina. "Analytical control of silicified graphite SG-P." Industrial laboratory. Diagnostics of materials 87, no. 8 (2021): 69–75. http://dx.doi.org/10.26896/1028-6861-2021-87-8-69-75.

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An analytical scheme for the analysis of silicified graphite SG-P, a four-phase composite material consisting of silicon, carbon, silicon carbide and silicon dioxide, has been developed. The procedure can be successfully used in the quality control of raw materials and in the study of the phase composition of finished products The porosity and density of the graphite base, as well as the impurities contained in the base and silicon change the course of silicification and the properties of the finished product as well. The impurities are the main reason for the formation of delamination, swelli

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Sułkowski, B., G. Boczkal, P. Pałka, and G. Mrówka-Nowotnik. "Effect of graphite microstructure on their physical parameters and wettability properties." NOVYE OGNEUPORY (NEW REFRACTORIES), no. 8 (November 24, 2021): 34–39. http://dx.doi.org/10.17073/1683-4518-2021-8-34-39.

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To produce castings of titanium, nickel, zinc, copper and many other metal alloys, graphite molds can be used. Using graphite molds has many advantages which are no lubricate or coating layers are needed, high cooling rate, easy of production of complicated shapes. However, for good quality of castings there is needed a good quality of graphite with high mechanical properties and good heat transfer coefficient. Because of no room for manipulating of chemical composite of graphite molds, the most important factor influencing the properties of the molds is their production process. Thus, in the

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Gholamalizadeh, Naghmeh, Saeedeh Mazinani, Majid Abdouss, Ali Mohammad Bazargan, and Fataneh Fatemi. "Efficient and Direct Exfoliation of High-Quality Graphene Layers in Water from Different Graphite Sources and Its Electrical Characterization." Nano 16, no. 07 (2021): 2150079. http://dx.doi.org/10.1142/s179329202150079x.

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Green and efficient mass production of graphene sheets with high quality and electrical conductivity is intriguing for both academic scientists and industry. Among numerous production methods suffering from complexity or harsh chemical media, direct and high-yield exfoliation of graphite in water seems to be the best choice. In this study, efforts were made to prepare high-quality and stable graphene dispersions with the highest possible concentrations through an ultrasound-assisted liquid-phase exfoliation (LPE) in water directly from two types of natural graphites. The rigorous structural, m

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