Academic literature on the topic 'Double compression'

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Dissertations / Theses on the topic "Double compression"

1

Ma, Kuang-Hua. "Image compression using a double differential pulse code modulation technique (DPCM/DPCM." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178215120.

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2

Valero, Diana (Diana E. ). "Compression testing and measurement of material properties of a double network hydrogel." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98758.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 26).<br>Double network hydrogel samples were synthesized and manufactured out of polyacrylamide (PAAm) and alginate solutions. They were casted into cube molds with each side measuring 20 mm. Samples were tested under compressive loads in cyclic compression tests and stress relaxation tests. A viscoelastic model was applied and material properties were calculated using the experimental data. The elastic modulus of
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3

MOHEISSEN, MOHEISSEN. "Etude theorique et experimentale de la double compression locale et traction locale de profiles metalliques non standards." Rennes, INSA, 1991. http://www.theses.fr/1991ISAR0008.

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En prolongement d'etudes anterieures, effectuees au laboratoire structures de l'insa de rennes, sur la compression locale de profiles standards de type i ou h, le present travail traite de ces trois aspects originaux: 1) l'induction d'une nuance nouvelle, a savoir l'acier fee 460 considere a limite d'elasticite elevee; 2) la perturbation, par le phenomene de voilement, de la resistance plastique de l'ame d'un profile soumis a la compression locale; 3) la definition du concept de largeur efficace pour la resistance a la traction locale. Au chapitre i, on s'est attache a relater les principales
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4

Zhao, H., R. Wang, Dennis Lam, C.-C. Hou, and R. Zhang. "Behaviours of circular CFDST with stainless steel external tube: Slender columns and beams." Elsevier, 2020. http://hdl.handle.net/10454/18141.

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No<br>In this work, experimental and numerical investigations were performed on the behaviours of circular concrete filled double steel tubular (CFDST) slender columns and beams, in which the external tube employed stainless steel tube. Eighteen specimens, 12 slender columns and 6 beams, were tested to obtain the failure patterns, load versus deflection relationships and strain developments of stainless steel tube. A finite element (FE) model was developed and verified by experimental results. The validated FE model was then employed to investigate the effects of key parameters, including holl
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5

Foscan, Tiziana. "Mechanical characterization of double-wythe masonry walls with a view to in-situ testing methods." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Unreinforced masonry is one of the most commonly used structure typologies for the construction of residential buildings, which is why the estimation of its mechanical parameters is of primary importance. The main techniques to acquire them are based on destructive methods, however less invasive tests have been studied in the past years in order to obtain the same parameters in-situ: the core testing method is one of those. While monotonic compression tests on single-wythe cores provided good results, tests performed on double-wythe cores have given a significant overestimation of the compress
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6

Kim, Nam Hyung. "INJECTION-COMPRESSION AND CO-INJECTION MOLDINGS OF AMORPHOUS POLYMERS: VISCOELASTIC SIMULATION AND EXPERIMENT." Akron, OH : University of Akron, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1230065091.

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Dissertation (Ph. D.)--University of Akron, Dept. of Polymer Engineering, 2009.<br>"May, 2009." Title from electronic dissertation title page (viewed 11/27/2009) Advisor, Avraam I. Isayev; Committee members, James L. White, Erol Sancaktar, Kevin Kreider, Minel J. Braun; Department Chair, Sadhan C. Jana; Dean of the College, Stephen Cheng; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
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7

Kayahan, Ahmet. "Compressibility Of Various Coarse-grained Fill Materials In Dry And Wet Loading Conditions In Oedometer Test." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/4/1052539/index.pdf.

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The use of coarse-grained fill materials has grown significantly in recent years especially on account of their use in dams and transportation networks. This study investigates compressibility of various coarse-grained fill materials in dry and wet loading conditions in oedometer test. Four materials were used in the experiments, which falls into GP, GW, GM and GC categories respectively. GP material is a weathered rock obtained from Eymir Lake region. This material was chosen especially to be able to investigate degradation and particle breakage due to compaction and compression. GW, GM and G
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8

Aaboud, Bouchra. "Modélisation et simulation de la formation, la compression et le transport des bulles d'air en milieux fibreux à double échelle de pores : application au procédé RTM." Thesis, Le Havre, 2016. http://www.theses.fr/2016LEHA0023/document.

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Ce travail traite la problématique des bulles d’air contenues dans les pièces composites mises en œuvre par le procédé RTM. La modélisation des phénomènes de création, de compression et de transport de ce type de défauts est présentée. Notamment l’adoption d’un nouveau modèle de création des bulles d’air, de transport, et l’estimation des porosités à double échelle de pores ainsi que la saturation finale de la préforme sont données<br>This work covers the problematic of air bubbles entrapped during manufacturing composite parts via the RTM process. Modeling creation, compression, and transport
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9

Bruna, Arcangelo Ranieri. "Applied Image Processing Algorithms for Forensic Applications." Doctoral thesis, Università di Catania, 2013. http://hdl.handle.net/10761/1316.

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The research activities described in this thesis have been mainly focused on the analysis and development of techniques able to detect image forgeries. The first part of the thesis has been devoted on detecting tampering by using compression artifacts analysis. Driven by an application aiming to retrieve the original camera model used to shoot the image, two research topics have been targeted: the cropping detection, i.e. the operation that allows obtaining a subpart of the image, and the double quantization detection, i.e. the fact that an image, previously compressed, is opened, modified and
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10

Alipour, Philip Baback, and Muhammad Ali. "An Introduction and Evaluation of a Lossless Fuzzy Binary AND/OR Compressor." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-6141.

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We report a new lossless data compression algorithm (LDC) for implementing predictably-fixed compression values. The fuzzy binary and-or algorithm (FBAR), primarily aims to introduce a new model for regular and superdense coding in classical and quantum information theory. Classical coding on x86 machines would not suffice techniques for maximum LDCs generating fixed values of Cr &gt;= 2:1. However, the current model is evaluated to serve multidimensional LDCs with fixed value generations, contrasting the popular methods used in probabilistic LDCs, such as Shannon entropy. The currently introd
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