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Статті в журналах з теми "Pressure print analysis":
1
Dendge, Ramesh R. "Analysis of Printing Pressure Using Density Measurements of Printed Ink." SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology 11, no. 01 (July 25, 2019): 39–46. http://dx.doi.org/10.18090/samriddhi.v11i01.6.
Анотація:
In process-color lithographic sheet-fed offset printing the uniformity of printing pressure is critical in achieving consistent print quality. The variations in printing pressure at blanket and impression cylinder nip affect the resultant print density of process colors. The variations in printing pressure are observed not only within the print run but also in the print area of the sheet. The printing pressure is the function of machine engineering, blanket cylinder covering material, substrate, and thickness of image carrier, packing materials used in packing of blanket and plate cylinder. Many printers, even today, use a feeler gauge to judge the level of printing pressure at two or three places along with the blanket and impression cylinder nip. The conventional feeler gauge method yields qualitative information and considers a very smaller portion of the print area. In this experimental work, the densitometry is used to devise an alternative subjective method to give information about the levels of printing pressure across the print area. The image equalling print area is divided into uniformly spaced small patches and one thousand sheets uncoated paper are printed with cyan color on large format offset printing machine. Three sheets, 101th, 501th, and 901th, representing the start, middle and the end of the print run are selected. Out of each identified sheets, three patches are selected from left middle and right columns giving a total nine locations from across the print area. The reflection densities, of nine cyan patches uniformly covering the print area, are measured using electronic densitometer for each of the sheets and tabulated. This approach, involving statistics, is aimed at providing a quantitative tool to analyze printing pressure variation across the print area and within the print run.
2
Li, Ying, Wen Juan Gu, and Bang Gui He. "Research on the Influence of Printing Pressure and Speed on Print Quality of Coated Paper." Advanced Materials Research 663 (February 2013): 286–90. http://dx.doi.org/10.4028/www.scientific.net/amr.663.286.
Анотація:
What happens in the paper surface about ink absorption is of great important for appearance of final printing. The aim of this experiment was to investigate the influence of printing pressure and printing speed on ink layer thickness transferred onto coated paper through quantitative analysis by laser scanning confocal microscope (LSCM). Meanwhile, the influence of printing pressure and printing speed on print density and print gloss were obtained. The results implied that higher printing pressure resulted in higher ink layer thickness, print density and print gloss when printing pressure is less than 700N, but higher printing speed resulted in lower ink layer thickness, print density and print gloss when printing pressure is constant. It could be concluded that the coated paper with high printing speed compared with low printing speed resulted in lower ink absorption, lower print density, lower print gloss and worse printability on the condition of same printing pressure.
3
SELIVYORSTOVA, TETJANA, VADIM SELIVYORSTOV, and VITALIY KUZNECOV. "COMPLEX OF MATHEMATICAL MODELS AND METHODS TO CALCULATE PRESSURE EFFECT ON SULFIDE DISTRIBUTION IN STEEL." Computer systems and information technologies, no. 2 (October 4, 2021): 57–65. http://dx.doi.org/10.31891/csit-2021-4-7.
Анотація:
Primary objective is to develop computational method to analyze digital pictures of sulfide prints, helping obtain qualitative image characteristics, and to formulate mathematical model of the distribution of sulphide inclusions to determine specific features of the pressure effect on the macrostructure formation of carbon steel castings flooded into the uncooled mold.
The research was carried out using images of sulfide prints of templates cut of steel cylindrical castings; L500 steel was applied. The castings result from industrial tests of a method of gas-dynamic effect on the fusion in the foundry forms under the conditions of a casthouse of Dnipropetrovsk aggregate plant PJSC. Digital pictures of sulfide prints, obtained in terms of the increased rate of gas pressure and maximum pressure, were binarized; defective fra gments were removed; and zoning took place. The developed computational method has been applied for fragments of images, representing different zones; data arrays have been received containing sizes and amounts of inclusions in the fragment.
The developed computational method to analyze digital images of sulfide prints has been implemented. ASImprints software support has helped obtain qualitative characteristics of images; namely, distribution of amount of the certain-size sulfide inclusions.
The computational method to analyze digital images of sulfide prints has made it possible to study the set of patterns of sulfide prints. The dependences have been obtained, describing specific features of sulfide inclusion distribution while varying gas-dynamic pressure method in terms of fusion in the casting form. It has been demonstrated that the distribution describes effectively the power-series distribution to compare with the exponential one. Mathematical model of the power-series distribution parameter dependence upon pressure has been developed. Deviation of the distribution parameters in terms of the experimental values and the model values has been evaluated.
The research demonstrates the ways to apply an algorithm of simple recursive casting for quantitative analysis of digital images of sulfide prints. Use of ASImprints, being software implementation of the computational method to analyze digital images of sulfide prints making it possible to obtain qualitative characteristics of images, has helped identify that the increased pressure within a casting-device for gas injection system results in the increased specific amount of inclusions and the decreased specific zone of sulfide inclusions respectively. It has been defined that exponential function describes reliably the nature of sulfide inclusion distribution in the digital image of sulfide print. The research has demonstrated that fragments of a sulfide print, belonging to one zone, are statistically homogeneous. Thus, it is possible to analyze quantitively digital image zone of a sulfide print on its fragment. Mathematical model of dependence of sulfide inclusion distribution in carbon-steel castings in terms of gas-dynamic effect on fusion solidifying in a mold has been developed. The model may be applied to predict sulfide inclusion distribution within the selected zones of cross section of the cylindrical castings solidifying in the uncooled mold in terms of the preset mode of gas-dynamic effect.
Keywords: gas-dynamic effect, pressure, solidification, casting, steel, 35 Л, mold, macrostructure, sulfides, inclusions, template, sulfide print, distribution, polynomial, parameters, prediction, software implementation, ASImprints
4
IKEGAMI, Munetoshi. "Analysis of contact pressure of a thermal print head using the generalized Maxwell model." Proceedings of the JSME annual meeting 2003.4 (2003): 191–92. http://dx.doi.org/10.1299/jsmemecjo.2003.4.0_191.
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No, Boram, and Naya Choi. "Differences in Graphomotor Skills by the Writing Medium and Children’s Gender." Education Sciences 11, no. 4 (April 1, 2021): 162. http://dx.doi.org/10.3390/educsci11040162.
Анотація:
Factors of graphomotor skills may serve as indicators to determine a writer’s handwriting proficiency or acclimation to different writing surface textures. This study examines differences in children’s graphomotor skills based on types of writing medium and gender. Participants were 97 six-year-old Korean preschool children who had not received formal writing training prior to the study. Writing tasks were completed on a tablet screen and paper. Writing samples were analyzed using the Eye and Pen software to investigate spatial, temporal, and pressure exertion exhibited during the writing tasks. A repeated measures ANOVA revealed differences in graphomotor skills such as print size, writing speed, and writing pressure. Writing on a tablet screen decreased clarity of writing; print size and speed increased as the stylus slides across the tablet surface with relatively less friction, thereby decreasing the exertion of writing pressure. Analysis of writing differences according to gender indicated that boys generated larger print sizes than girls. Results suggest that while simple writing tasks may be feasible on the tablet screen, providing children with a larger writing medium and encouraging larger print sizes for writing practice, especially for boys, may be beneficial in the development of graphomotor skills among young learners.
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NITTA, Isami, Hirotoshi TERAO, and Takuya SESHITA. "Analysis of Contact Pressure Acting on a Thermal Print Head of a Thermal Transfer Printer." Transactions of the Japan Society of Mechanical Engineers Series C 70, no. 693 (2004): 1482–87. http://dx.doi.org/10.1299/kikaic.70.1482.
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IKEGAMI, Munetoshi, Isami NITTA, and Hirotoshi TERAO. "Analysis of Contact Pressure Acting on a Thermal Print Head of a Dye Sublimation Printer." Transactions of the Japan Society of Mechanical Engineers Series C 74, no. 738 (2008): 439–45. http://dx.doi.org/10.1299/kikaic.74.439.
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Nitta, Isami, and Hirotoshi TERAO. "Analysis of contact pressure acting on a thermal print head of a thermal transfer printer." Proceedings of the Machine Design and Tribology Division meeting in JSME 2003.3 (2003): 173–74. http://dx.doi.org/10.1299/jsmemdt.2003.3.173.
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NITTA, Isami, and Hirotoshi TERAO. "Analysis of contact pressure acting on a thermal print head of a thermal transfer printer." Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2004 (2004): 21–24. http://dx.doi.org/10.1299/jsmeiip.2004.21.
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Bancora, S., C. Binetruy, S. Advani, and S. Comas-Cardona. "Characterization of mesoscale geometrical features of a preform using spectral Moiré analysis on pressure print." Composites Part A: Applied Science and Manufacturing 150 (November 2021): 106608. http://dx.doi.org/10.1016/j.compositesa.2021.106608.
Дисертації з теми "Pressure print analysis":
1
Bancora, Simone. "Characterization of fabric layups by pressure print analysis and simulation of dual-scale flow based on topological skeletonization : application to composite materials processing." Thesis, Ecole centrale de Nantes, 2021. http://www.theses.fr/2021ECDN0049.
Анотація:
Dans cette thèse, nous nous intéressons aux préformes fibreuses dans le cadre du procédé Resin Transfer Moulding (RTM). L'objectif de la thèse est double : proposer une nouvelle méthodologie pour obtenir des données géométriques à la mésoéchelle des préformes et fournir un nouveau modèle numérique capable de prédire la perméabilité ou d'effectuer des simulations d’écoulement efficaces à la méso-échelle. Dans la première partie, l'accent est mis sur l'acquisition de données géométriques : nous proposons une nouvelle méthodologie basée sur l'analyse du champ de pression supporté par une préforme sèche sous compactage. Un film sensible à la pression mesure le champ de pression par un empilement de plis contre les parois du moule. Profitant de l’architecture périodique des textiles, les empreintes révélées par le champ de pression sont interprétées par analyse spectrale de Moiré pour mesurer l'orientation et la distribution spatiale de chaque couche dans l’empilement. Dans la seconde partie, le modèle numérique de la préforme est utilisé pour effectuer des simulations numériques d'écoulement à l'échelle des fils, afin d’en caractériser la perméabilité ou d’effectuer directement des simulations de remplissage. La géométrie 3D de l’empilement est remplacée par un squelette préservant les propriétés topologiques nécessaires à la résolution numérique du problème d'écoulement bidimensionnel, réduisant considérablement le coût de calcul par rapport à une approche 3D complète. Ce modèle de réduction du volume poreux en squelette est d'abord formulé dans sa version simple échelle (écoulement inter-mèche), puis étendu en double échelle (écoulement inter- et intra-mèche). Le potentiel du modèle est illustré à travers plusieurs cas tests. Cette recherche propose une méthodologie allant de l'acquisition de données géométriques à la simulation numérique double-échelle de l'écoulement au sein dans un empilement de tissusIn this work, we study continuous fiber preforms in the context of Resin Transfer Moulding (RTM) processes. The aim of the thesis is two-fold: propose a new methodology to obtain mesoscale geometrical data from preforms and provide a new numerical model able to predict permeability or perform mesoscale filling simulations in a computationally efficient way. In the first part, the focus is on the acquisition of geometrical data from preforms: we propose a novel methodology based on the analysis of the pressure field experienced by a dry preform under compaction. By using a commercial pressure-sensitive film, the pressure field exerted by a stack of layers against mould walls is captured and analyzed. Taking advantage of the periodic morphology of textiles, geometric patterns revealed by the pressure field are interpreted according to spectral Moiré analysis to recover the orientation and spatial distribution of each individual layer in the stack. In the second part, the reconstructed digital architecture of the preform is used to carry out numerical flow simulations at the scale of the yarns, to characterize permeability of the stack or directly perform filling simulations. The stack geometry is replaced by a skeletonized representation of the same, on which a two-dimensional flow problem can be solved numerically, greatly reducing the computational cost when compared to a full 3D approach. This “medial skeleton” model is first formulated in its single-scale version (flow in channels) and then extended to dual-scale (flow in channels and yarns). The model potential is illustrated through several test cases. This research establishes a pathway going from the non-destructive acquisition of data to the simulation of the dual-scale flow inside a multi-layer layup of textiles
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Samouth, Eglantine. "Dire l’événement quand il surgit. Les journées d’avril 2002 au Venezuela dans trois quotidiens nationaux : une analyse discursive." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST0035/document.
Анотація:
En avril 2002, le président du Venezuela, Hugo Chávez Frías est éloigné du pouvoir pendant environ quarante-huit heures et remplacé par un président provisoire, Pedro Carmona Estanga, qui dissout l’ensemble des pouvoirs publics. Malgré sa brièveté, cet épisode a marqué l’histoire du Venezuela et témoigne de façon paroxystique des antagonismes sociaux et politiques que connaît ce pays. La présente recherche a pour but d’analyser la construction discursive de cet événement dans un corpus de trois quotidiens nationaux, en observant comment s’esquisse son sens au moment où il surgit. Dans un premier temps, nous exposons le contexte historico-politique et médiatique dans lequel se sont déroulés ces événements, avant de nous interroger sur la notion d’événement. Il en ressort que l’événement n’est pas une réalité saisissable en tant que telle, mais une réalité signifiée, dans laquelle le langage joue un rôle fondamental. Dans un deuxième temps, nous examinons de quelle manière l’apparition de l’événement se matérialise dans le dispositif des journaux, en accordant une attention particulière aux différents niveaux de titres. La troisième partie de la thèse est consacrée à l’étude la nomination de l’événement, tout d’abord, dans les titres et les Unes, puis à l’intérieur des articles. Les analyses de corpus montrent que le discours des journaux face à cet événement se caractérise par une certaine indétermination, par un usage abondant de l’implicite et par une tendance à l’effacement des journalistes derrière des faits qui semblent s’imposer comme une évidenceIn April 2002, the President of Venezuela, Hugo Chávez Frías, was removed from power for approximately forty-eight hours and replacing by an acting president, Pedro Carmona Estanga, who disbanded all of the public authorities. In spite of its brevity, this episode marked the history of Venezuela and testifies acutely to the social and political antagonisms experienced by this country. This research aims to analyse the discursive construction of this event within a corpus of three national daily newspapers, by observing how its meaning takes shape during the moment the events took place. Firstly, I present the historical and political context in which these events occurred and media’s situation in Venezuela, before exploring the notion of the event in general terms. As a result, I show that the event is not a reality that can be captured as such, but is in fact a signified reality, in which language plays a fundamental role. Secondly, I examine in what ways the event is materialised in the dailies’ structure, while according particular attention to the various hierarchical levels of the headlines. The third part of the thesis is dedicated to the study of the event naming act, firstly in the headlines and front pages, then within articles. The corpus analyses show that the discourse of the newspapers in front of this event are characterised by a certain vagueness, by abundant usage of implicit modes of address and by the journalists’ tendency to hide behind facts that seem to impose themselves naturally
3
Jacquez, Lise. "La controverse autour des expulsions de sans-papiers dans la presse française (2006-2010) : analyse des discours et des enjeux sociopolitiques." Thesis, Lyon 2, 2014. http://www.theses.fr/2014LYO20113/document.
Анотація:
Cette recherche porte sur la controverse construite autour des expulsions d’étrangers en situation irrégulière en France entre 2006 et 2010 et sur sa médiatisation dans cinq titres de la presse quotidienne nationale française : l’Humanité, Libération, Le Figaro, Le Monde et Le Parisien (édition nationale). L’objectif principal est de saisir les enjeux sociopolitiques structurant les discours des différents acteurs qui font exister cette controverse dans l’espace public : le gouvernement, les militants des droits des étrangers et, enfin, les médias. Il s’agit notamment de voir s’il existe une mise en débat de la gestion sécuritaire des flux migratoires dans les discours médiatiques. Notre propos s'organise en trois parties. La première partie est une mise en perspective historique de la place des étrangers dans l’État-nation français depuis la Révolution française jusqu'à la fin du 20ème siècle. Elle nous permet de comprendre les difficultés politiques spécifiques qui surgissent lorsqu’il s’agit de penser la question des droits et de la place des migrants dans un monde organisé en États-nations. La deuxième partie décrit et analyse les positionnements politiques et les discours des principaux acteurs du débat sur l'immigration irrégulière et les sans-papiers, soit l’État d'un côté et le champ militant de l'autre. Enfin, dans une troisième et dernière partie, nous analysons le rôle joué par les journaux français dans la construction de la controverse autour des expulsions. Le corpus comporte 2602 articles, que nous analysons d'abord de manière quantitative à l'aide du logiciel Modalisa, puis de manière plus qualitative (analyse narrative, iconique et argumentative). Nos conclusions insistent sur les cadrages privilégiés dans les discours de presse ainsi que sur leurs difficultés à élaborer une ligne éditoriale cohérente et ambitieuse sur la question des migrations et une autonomie vis-à-vis des discours politiques. Elles montrent d’abord que l’accroissement de la répression vis-à-vis des sans-papiers est loin de faire consensus et est, au contraire, très controversée dans la presse française. Mais, malgré ce discours dénonciateur, les journaux peinent à prendre politiquement position sur la situation des sans-papiers et à mobiliser des arguments contre la logique sécuritaire. Les registre mobilisés par les journaux pour sortir de l’approche sécuritaire de l’immigration se limitent donc généralement à l’invocation de principes humanitaires et de valeurs morales, et au recours à l’argument de l’intégration (sociale, scolaire, professionnelle) des sans-papiers dans la société françaiseThis research concerns the controversy over the deportation of foreign nationals in irregular or illegal situation in France between 2006 and 2010, as well as the mediatisation of this controversy in five national French newspapers: l'Humanité, Libération, Le Figaro, Le Monde and Le Parisien (national edition). The main goal is to understand the socio-political issues structuring the discourses offered by the various social actors that take part in this controversy in the public sphere : the government, activists and advocates for migrants' rights, and the media. This research focuses in particular on ascertaining whether the security-centred management of migratory flows is debated in media discourses.The argument is divided into three parts. The first part gives historical perspective to the position of foreign nationals in the French nation state from the French Revolution to the end of the twentieth century. It illuminates the political difficulties that appear when conceiving of the rights and the position of migrants in a world made of nation states. The second part describes and analyses the political positioning as well as the discourses of the main social actors taking part in the debates on irregular and illegal migration; looking at the state on the one hand, and activist movements on the other. Finally, the third part proposes an analysis of the role played by French newspapers in the construction of the controversy over deportations. The corpus consists of 2602 press articles, which are firstly quantitatively analysed with the help of software Modalisa, and then approached qualitatively (narrative, iconic and argumentative analyses).This research conclusions focus on the interpretative frames most used in newspapers' discourses. It discusses the way these discourses encounter difficulties not only in elaborating a coherent and ambitious editorial line regarding migration, but also in retaining a certain autonomy in relation to political discourses. The conclusions show firstly that there is a clear lack of consensus concerning the increasing repression of illegal migrants, amounting to a real controversy in French newspapers. However, despite this denunciation, newspapers find it difficult both to take a political stand on the situation of illegal migrants, and to mobilise arguments against security-based discourses. Indeed, in order to eschew these approaches focusing on security, newspapers are often limited to invoking humanitarian principles and moral values, and to focusing on the integration (whether it be social, educative, professional) of illegal migrants in French society
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Bayhantopçu, Esra. "Analysis of the social representation of the marriage of underage girls problem in Turkey : between the narrative of experienced actors and symbolic presentation of Turkish print and social media." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01D090.
Анотація:
Les enfants constituent la valeur primordiale dans les mécanismes de reproduction de la société. C’est pourquoi les groupes ont cherché à s’emparer du «choix» des acteurs sociaux avant qu’ils n’accèdent à la capacité de décision. Pourtant du fait de la progression de la subjectivation et des droits individuels, les mariages d’enfants constituent de plus en plus un problème social dans les mondes sociaux à la fois traditionnels et modernes, notamment en Turquie. L’objectif de cette thèse a pour objet d’apporter un regard critique mais compréhensif sur les mariages d’enfants de sexe féminin en Turquie, d’en comprendre les causes et conséquences et de révéler les expériences des femmes s’étant mariées avant l’âge mineur (18 ans) et de voir comment elles perçoivent la question du mariage d’enfants. Deuxièmement, nous avons cherché à analyser les articles parus à ce propos, dans la presse écrite turque et les messages Twitter afin de constater comment les médias choisissent de refléter ce problème et de comprendre si le discours adopté au cours de ces articles de presse et messages Twitter correspondent au discours adopté par les femmes en question. La thèse mobilise deux types de sources : un travail sur le terrain et une analyse d’un corpus de journaux. Dans une première étape, des entretiens face-à-face, semi-structurés ont été réalisés avec des femmes s’étant mariées avant l’âge de 18 ans. Dans une seconde étape, des articles parus dans la presse écrite et les messages sur Twitter ont été étudiés. Finalement, les données obtenues lors de ces deux recherches ont été comparées. Cette thèse, inspirée par la théorie du féministe est composée de cinq chapitres principaux qui déclinent une démonstration révélant la complexité d’un phénomène où les acteurs sociaux dévoilent une multiplicité de représentations et de trajectoiresChildren are the most important value and future of a society. However, today, one of the important societal problems in Turkey as well as in the problem of marriage of underage girls. The aim of this thesis is firstly to look critically at the marriages of underage girls in Turkey to find out its reasons and results and reveal the experiences of women who married before age of 18 and how these women perceive the child marriage problem. Secondly, it is aimed to analyze related news in Turkish print media and across Twitter posts and to find out how the media reflects this problem and if these news reports and Twitter posts’ discourses correspond to the discourses of the women in question. The thesis consists of two types of field research. In the first stage of the research, a face-to-face, semi-structured interview is conducted with the women who married before their age of 18. In the second research, related news reports in Turkish print media and posts on Twitter are examined. Finally, the findings of two types of research are compared. This thesis, which is based on feminist framework theoretically, consists of five main chapters. In this study, the relation between the way that these underage married women identified themselves and statements of media are investigated. In this regard, the study aims to make a contribution to the literature in terms of discussing the problem from the sociological perspective and it is hoped to make contribution to the solution of the problem to decrease the number of underage married girls in Turkey
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Tanguay, Marilou. "Femmes journalistes et sujets « féminins » : analyser Le Devoir au prisme du genre (1965-1975)." Thèse, 2017. http://hdl.handle.net/1866/20687.
Книги з теми "Pressure print analysis":
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Miller, Brett A., Roch J. Shipley, Ronald J. Parrington, and Daniel P. Dennies, eds. Analysis and Prevention of Component and Equipment Failures. ASM International, 2021. http://dx.doi.org/10.31399/asm.hb.v11a.9781627083294.
Анотація:
Volume 11A provides information and insights on the factors that determine the useful service life of engineering components and the likely timing and mode of failure. It addresses nearly every stage of the product lifecycle from materials selection and design to manufacturing, operation, maintenance, and repair. It explains how to use life assessment methods to evaluate the effect of corrosion, fatigue, brittle fracture, elevated temperature, and other forms of damage. It also includes a section that examines the effects of casting, forming, welding, heat treating, and other manufacturing processes on component lifetime and performance. The final and by far largest section in the volume presents and analyzes the failure of metal shafts, fasteners, bearings, springs, and gears as well as pressure vessels, boilers, heat exchangers, pipelines, bridges, cranes, rail equipment, and medical devices. For information on the print version of Volume 11A, ISBN: 978-1-62708-327-0, follow this link.
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1948-, Bock Herbert, ed. AIDS in der Presse: Eine sprachpsychologische Untersuchung zur Berichterstattung über die Krankheit AIDS in Print-Medien. Regensburg: S. Roderer, 1992.
Частини книг з теми "Pressure print analysis":
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Łąpieś, Zuzanna, Przemysław Siemiński, Jarosław Mańkowski, Jakub Lipnicki, Łukasz Żrodowski, Piotr Żach, Michał Fotek, and Łukasz Gołębiewski. "The Concept of Applying the Polyjet Matrix Incremental Technology to the Manufacture of Innovative Orthopaedic Corsets – Research and Analysis." In Advances in Transdisciplinary Engineering. IOS Press, 2020. http://dx.doi.org/10.3233/atde200081.
Анотація:
Paper presents the concept of using digital materials to produce, by 3D printing, personalized orthopaedic corsets. Project assumes that corset created on the basis of a 3D scan and patient’s x-ray, after posture correction in a dedicated program, will guarantee anatomical fit. Using additive manufacturing will allow to print shell and padding in one piece, without perceptible boundaries. Smooth combination of variable stiffness materials will allow precise positioning of the pressure surface with optimal shape. Soft padding protects against abrasions and microholes allow body to breathe. Using transparent and multicolour materials will allow creating an individual style corset. To implement the work, research was performed on materials used in PolyJet technology (new material is created in manufacturing process and has properties depending on proportion of base materials). Nonlinear tensile characteristics were obtained. Various models of hyperelastic materials were tested, parameters were identified and Drucker’s stability criteria were examined. Using FEM, stiffness and strength of structure was tested. Values of stresses in structure and surface forces in body contact areas were determined. Corset closing pressure and corset opening were simulated.
2
Siegel, Jonah. "Transfiguration." In Material Inspirations, 49–63. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198858003.003.0002.
Анотація:
This chapter introduces two topics that will run throughout the book: the importance of the reproductive print in the period, and of Raphael’s Transfiguration. Reproductive prints were prized objects in the nineteenth century that inevitably shaped the reception of art works in the period. As more accurate, but far less labor-intensive, forms of reproduction took over their role, they have generally been lost to sight as objects and as topics for analysis. But recognition of their physical presence illuminates a number of topics that concern Material Inspirations: the relationship between matter and idea, the pressure of remains on culture, and the effect of forms of mediation on ideas about art. Raphael’s Transfiguration fascinated later periods formally and historically. It was known to be the painter’s last work, and understood to have been finished by his students after his death, and so it had important biographical associations even as it put into question ideas of individual creative agency. The divided form of the painting consistently called out for reconciliation by writers on the work, and was soon linked to the tension between the world and a state beyond it that the canvas represents. This chapter proposes ways in which unresolvable questions of representability raised by the theological program of the painting may be placed in relation to developments in taste in the nineteenth century, including reproduction itself.
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"Managing the Impacts of Human Activities on Fish Habitat: The Governance, Practices, and Science." In Managing the Impacts of Human Activities on Fish Habitat: The Governance, Practices, and Science, edited by Roland Cormier. American Fisheries Society, 2015. http://dx.doi.org/10.47886/9781934874417.ch7.
Анотація:
<em>Abstract.</em>—Project level regulatory review and environmental assessment processes typically assess and ascertain potential impacts of one project or human sector activity on a specific habitat or species. The scope of the assessment is usually limited to the ecological foot print or zone of influence of the project. The assessment also identifies key mitigation measures designed to reduce effects to residual levels. These measures tend to be sector or project specific with a focus on activity specific adverse environmental effects such as fish passage, flow maintenance or sedimentation control. By design, such assessments are not effective to ascertain the project’s contribution to the overall cumulative effects in a given ecosystem. In this paper, a risk analysis approach is discussed as a means to structure and facilitate the characterization of cumulative effects and in priority setting for management. As part of the hazard identification step, the risk analysis approach requires that the ecological unit and the zone of influence of relevant drivers of human activities be identified. Cumulative effects are considered as the residual effects resulting from activities operating within their respective legal and policy frameworks. In preparation for the Risk Assessment step, the paper describes the need to establish pathways of effects linking the relevant drivers of human activities to their resulting pressures and potential ecosystem goods and services Impacts. Pathways of effects are important components of risk management in identifying which pressure require new or enhanced mitigation measures.
4
Terzis, Georgios. "Media Stereotypes of Terrorism." In Exchanging Terrorism Oxygen for Media Airwaves, 96–108. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-5776-2.ch007.
Анотація:
This chapter analyzes different stereotypes used by media when covering terrorism events. It discusses topics such as: media stereotypes of different terrorist groups, how media responses differ according to the type of terrorism, type of medium (e.g., print, broadcast, and on-line), location of the headquarters of the medium (regional subjectivity), the audience of the medium (national, transnational, or international), and the political affiliation and market orientation of the medium. This chapter attempts to provide an additional analysis of the way that these stereotypes are formulated by the use of basic and not so basic rhetorical techniques of the invention, arrangement, style, memory, and delivery applied. All the above are analyzed against the background of the basic social determinants of journalism: political pressures and censorship, technological possibilities, news management and public relations strategies of the army, economic pressures and professional culture, and the basic news values or news selection criteria (e.g., timing of the event, negativity, meaningfulness, and reference to elite nations and persons).
Тези доповідей конференцій з теми "Pressure print analysis":
1
Xiao, Li. "Analysis on pressure of digital technology brings to the print media industrial security." In 2016 International Conference on Industrial Economics System and Industrial Security Engineering (IEIS). IEEE, 2016. http://dx.doi.org/10.1109/ieis.2016.7551887.
2
Ranu, Harcharan Singh, and Ali Almejrad. "Normal and Prevention of Pedal Sequelae in Diabetic Patients: A 3-D Pressure Pattern Analysis." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38042.
Анотація:
A 3-D Foot Print Device was developed to measure the plantar foot pressures for normal and diabetic patients with neurotrophic ulcers. The results show that patients with peripheral neuropathy develop very high forefoot pressures as compared to normal segment of the populations. Bubble technology and new memory biomaterials insoles were used to reduce these forefoot pressures combined with providing new custom made shoes.
3
Dedijer, Sandra, Magdolna Pál, Ivana Tomić, Stefan Poljak, Živko Pavlović, Ivana Jurič, and Neda Milić Keresteš. "Statistical analysis of the influence of print run on surface roughness of digital flexo printing plates’ solid tone areas." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p30.
Анотація:
In this study we have aimed to present statistical evaluation of changes in the surface roughness of the solid tone areas on CtP flexo printing plate in dependence of print run. Changes in flexo plate surface roughness is influenced by the plate-making process, printing pressure and speed, the interaction with the ink and printing substrate and by the wear of the printing plate due to long print-runs. Thus, the aim of this research was to evaluate the changes in the amplitude surface roughness parameters (Ra, Rp, Rv and Rz), between the printing plates used for different print runs. In the experiment, we have employed three sets of CtP flexo printing plates, for three colors-cyan, magenta and blue. The first set was not used for printing, the second was used to print 7 rolls of substrate and the third is used to print 11 rolls of printing substrate. The amplitude surface roughness parameters were compared by applying independentsamples t-test method using the software SPSS (Statistical Package for Social Science) with a 0.05 significance level. Statistical analysis revealed that the difference between the amplitude surface roughness parameters measured on CtP flexo printing plates are significant with a 95% confidence level, whereas the statistical significance pointed out that with the longer print runs, the difference will be strongly expressed.
4
Desai, Salil, and Michael Lovell. "CFD Analysis of a Continuous Inkjet Print Head for Direct Write Fabrication." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43692.
Анотація:
This paper investigates the fluid generation mechanism in a modified Continuous Inkjet Print (CIJ) method. The CIJ technique is utilized to deposit a variety of conductive nano particulate materials for building miniaturized devices that can sustain harsh environments. These include devices and structures that can sustain high temperature and humidity applications. Given the complex drop formation mechanism a CFD model is developed that is further validated using an ultrahigh speed photography experimental setup. Various input parameters such as frequency, voltage and fluid pressure can be tuned using the model for different fluid types to obtain an optimal drop formation. These findings can be useful for the fabrication of freeform miniaturized devices in 3 dimensional space.
5
Lall, Pradeep, Jinesh Narangaparambil, Tony Thomas, and Kyle Schulze. "Repeatability and Extended Time Stability Study of an Additively Printed Strain Gauge Under Different Load Conditions." In ASME 2021 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/ipack2021-74570.
Анотація:
Abstract Printed electronics has found new applications in wearable electronics owing to the opportunities for integration, and the ability of sustaining folding, flexing and twisting. Continuous monitoring necessitates the production of sensors, which include temperature, humidity, sweat, and strain sensors. In this paper, a process study was performed on the FR4 board while taking into account multiple printing parameters for the direct-write system. The process parameters include ink pressure, print speed, and stand-off height, as well as their effect on the trace profile and print consistency using white light interferometry analysis. The printed traces have also been studied for different sintering conditions while keeping the FR4 board’s temperature limit in mind. The paper also discusses the effect of sintering conditions on mechanical and electrical properties, specifically shear load to failure and resistivity. The data from this was then used to print strain gauges and compared them to commercially available strain gauges. By reporting the gauge factor, the printed strain gauge has been standardized. The conductive ink’s strain sensing capabilities will be studied under tensile cyclic loading (3-point bending) at various strain rates and maximum strains. Long-term performance testing will be carried out using cyclic tensile loads.
6
Ryan, Claire, Jeff M. Punch, Bryan Rodgers, Greg Heaslip, Shane O’Neill, and Eamonn Murphy. "An Investigation of the Lead-Free Surface Mount Soldering Process: Solder Joint Evaluation and Process Optimisation." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60491.
Анотація:
A European Union ban on lead in most electrical and electronic equipment will be imposed as of July 1st 2006. The ban, along with market pressures, means that manufacturers must transfer from a tin-lead soldering process to a lead-free process. In this paper the implications on the surface mount (SMT) soldering process are presented. A set of experiments was conducted to investigate the screen-printing and reflow steps of the SMT process using a tin-silver-copper (95.5Sn3.8Ag0.7Cu) solder and a baseline of standard tin-lead (63Sn37Pb). 10×10 arrays of micro Ball Grid Array (micro-BGA) components mounted on 8-layer FR4 printed wiring boards (PWBs) were used. The screen-printing experiment addressed the deposition of the solder paste on the board. The parameters used in the investigation were print speed, squeegee pressure, snap-off distance, separation speed and cleaning interval, with the responses being measurements of paste height and volume. Optimum screen-printer settings were determined which give adequate paste volume and height and a good print definition. The reflow experiment investigated the following parameters of the temperature profile: preheat, soak, peak and cool down temperatures, and conveyor speed. The resulting solder joints were evaluated using cross-section analysis and x-ray techniques in order to determine the presence of defects. A mechanical fatigue test was also carried out in order to compare the strength of the solder joints. The overall quality of the lead-free solder joints was determined from these tests and compared to that of tin-lead. The outcome is a set of manufacturing guidelines for transferring to lead-free solder including optimum screen-printer and reflow oven settings for use with an SnAgCu solder.
7
Qin, Lei, Gongnan Xie, and Shulei Li. "Numerical Analysis of Flow and Heat Transfer for Supercritical CO2 and Liquid Sodium in Semicircular Mini-Channels." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70203.
Анотація:
Abstract The Brayton cycle of supercritical carbon dioxide (S-CO2), is an ideal choice to replace the outdated power cycle. In order to improve the heat transfer performance, the Print Circuit Heat Exchanger (PCHE) has been attracted more attention, since it has a larger specific heat transfer area, compact structure, high efficiency. Based on this inspiration, the flow and heat transfer mechanism of S-CO2 and liquid metal sodium in a straight horizontal semicircular channel were studied, and the flow and coupled heat transfer was numerically analyzed. The influences of flow direction, Reynolds number and channel diameter on heat transfer performance and pressure drop in the semicircular straight channel were further studied. The results demonstrate that the performance of countercurrent designs 8.5% higher than that of the downstream pattern. The total heat transfer coefficient and pressure drop of both cold and hot channels in PCHE increase linearly with the rise in Reynolds number. The buoyancy effect affects the heat transfer when the pipeline velocity is small. The effect of buoyancy on heat transfer basically disappears when the pipeline velocity is high. When the diameter of the hot side channel is fixed and the diameter of the cold side channel is increased from 0.8mm to 1.1mm, the total heat transfer coefficient in the cold channel is increased by 8%, while the total heat transfer coefficient in the hot channel is increased by 51.6%. Through the above research in this paper, some heat transfer characteristics of sodium and supercritical carbon dioxide in PCHE are obtained, which is contribute to the design and optimization of the heat exchanger in sodium cooled fast reactor.
8
Ahsan, Mohammad J., Shaikha Al-Turkey, Nitin M. Rane, Fatemah A. Snasiri, Ahmed Moustafa, and Hakim Benyounes. "Advanced Gas While Drilling GWD Comparison with Pressure Volume Temperature PVT Analysis to Obtain Information About the Reservoir Fluid Composition, a Case Study from East Kuwait Jurassic Reservoir." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206296-ms.
Анотація:
Abstract Objectives/Scope The acquisition of mud gas data for well control and gathering of geological information is a common practice in oil and gas drilling. However, these data are scarcely used for reservoir evaluation as they are presumably considered as unreliable and non-representative of the formation content. Recent development in gas extraction from drilling mud and analyzing equipment has greatly improved the data quality. Combined with proper analysis and interpretation, these new datasets give valuable information in real-time lithological changes, hydrocarbons content, water contacts and vertical changes in fluid over a pay interval. Methods, Procedures, Process Post completion, Mud logging data have been compared with PVT results and they have shown excellent correlation on the C1-C5 composition, confirming the consistency between gas readings and reservoir fluid composition. Having such information in real time has given the oil company the opportunity to optimize its operations regarding formation evaluation, e.g downhole sampling, wireline logging or testing programs. Formation fluid is usually obtained during well tests, either by running downhole tools into the well or by collecting the fluid at surface. Therefore, its composition remains unknown until the arrival of the PVT well test results. This case intends to use mud gas information collected while drilling to predict information about the reservoir fluid composition in near real time. To achieve this goal we compared mud gas data collected while drilling with reservoir fluid compositional results. Pressure volume temperature (PVT) analysis is the process of determining the fluid behaviors and properties of oil and gas samples from existing wells. Results, Observations, Conclusions The reason any oil and gas company decides to drill a well is to turn the project into an oil-producing asset. But the value of the oil extracted from a single well is not the same as the value of the oil produced from another. The makeup of the oil, which can be determined from the compositional analysis, is an important piece of the equation that determines how profitable the play will be. The compositional analysis will determine just how much of each type of petroleum product can be produced from a single barrel of oil from that wells. Novel/Additive information Formation samples were obtained from offset wells in the Marrat Formation. These datasets gave valuable indications on fluid properties and phase behavior in the reservoir and provided strong base for reservoir engineering analysis, simulation and surface facilities design. The comparison of the gas data to PVT results gives a good match for reservoir fluid finger print, early acquisition of this data will help for decision enhancement for field development.
9
Smith, Austin, and Hamzeh Bardaweel. "Generation and Investigation of Embedded Micro-Channels Network Using Three Dimensional Printing Technology." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70161.
Анотація:
The work presented here is motivated by the recent growing interest in using additive manufacturing to fabricate micro-channels networks. Distorted shapes and rough geometries influence hydrodynamic characteristics of micro-channels by increasing their flow resistance and pressure drop or altering wall shear stresses inside them. Since geometric conformity and shape fidelity of micro-channels networks are greatly influenced by manufacturing process, this work is focused on dimensional characterization of micro-channels fabricated using additive manufacturing. In this work, circular and rectangular cross-section micro-channels are 3D printed. Shapes and dimensions of 3D printed micro-channels are examined using Scanning Electron Microscope (SEM) imaging. In this work, 500 μm diameter and 200 μm square transparent PolyLactic Acid (PLA) micro-channels are 3D printed with average errors 0.25% and 1.65%, respectively. SEM images confirmed geometric conformity and shape fidelity of the 3D printed circular and rectangular cross-section micro-channels. Statistical analysis is performed on multiple prints to verify reproducibility and shape conformity. Results show that factors such as printing direction play essential role in the shape conformity and geometric fidelity of the micro-channels. Although 3D printing is a promising route for attaining micro-channels there are still significant improvements that can be made to the precision of the printer in the XY plane for printing small geometric figures. This improvement will likely come as the printing technology and software both improve to allow the operator more control over the outcome of the print. Additionally, new 3D printing materials may open the gate for new applications in different fields such as thermal management and microfluidics.
10
Biba, Yuri, H. Allan Kidd, Stephen Peifer, Christopher Scott, Brian Sloof, and Anthony Tse. "Supersonic Ejectors for Hydrocarbon Emissions Capture." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46443.
Анотація:
Supersonic ejectors can be applied to capture low-pressure leakage gas from the gas seal vents of a centrifugal compressor. This captured gas can be re-injected into the fuel gas line of the gas turbine driver or the captured gas can be used as a fuel for gas fired utility heaters. By capturing the gas that is normally emitted to the atmosphere the operator can reduce operating cost and enjoy a reduction in hydrocarbon foot print. Because the supersonic ejector does not have moving parts, the system operating and maintenance costs are lower than functionally comparable traditional systems. In this study, a prototype of a supersonic ejector system was developed and tested at a pipeline compressor station. The obtained test data were used for developing and tuning a mean-line aerodynamic analysis tool, which predicts the ejector’s operating map. A family of three ejectors was designed to cover a range of operating conditions associated with gas turbine driven pipeline compressors. These ejectors were built, installed on a specially designed panel, described as the ejector system, and tested on inert gas at the original equipment manufacturer’s (OEM’s) facility. A comparison of predicted and as-tested supersonic ejector performance maps is discussed and conclusions are made about the system operating range.