Academic literature on the topic 'Passage 3d-2d'

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Journal articles on the topic "Passage 3d-2d"

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Bartosh, Thomas J., and Joni H. Ylostalo. "Efficacy of 3D Culture Priming is Maintained in Human Mesenchymal Stem Cells after Extensive Expansion of the Cells." Cells 8, no. 9 (2019): 1031. http://dx.doi.org/10.3390/cells8091031.

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The use of non-optimal preparations of mesenchymal stem cells (MSCs), such as extensively expanded cells, might be necessary to obtain the large numbers of cells needed for many clinical applications. We previously demonstrated that minimally expanded (early passage) MSCs can be pre-activated as spheroids to produce potentially therapeutic factors in 3D cultures. Here, we used extensively expanded (late passage) MSCs and studied their 3D-culture activation potential. MSCs were culture-expanded as 2D monolayers, and cells from various passages were activated by 3D culture in hanging drops with
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Liu, Guo Qing, Guo Hong Xie, and Zhen Shan Cui. "A New Approach for Folding Process Modeling of Passage Airbag." Applied Mechanics and Materials 635-637 (September 2014): 564–67. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.564.

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A new Passage Airbag (PAB) folding method which integrates simulation folding and manual folding is presented. Determining how to get a multi-layer 2D surface is vital to PAB folding. By means of 3D PAB flattening process simulation, 2D surface with a minimum area loss is created. This method avoids the traditional measurement of real PAB to obtain 2D airbag with inaccurate shape and size. After flattening PAB simulation, the 2D surfaces are meshed with respect to the predefined folding lines. The subsequent folding steps of flat 2D airbag are carried out according to the folding requirements.
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Murtiyoso, A., C. Lhenry, T. Landes, P. Grussenmeyer, and E. Alby. "SEMANTIC SEGMENTATION FOR BUILDING FAÇADE 3D POINT CLOUD FROM 2D ORTHOPHOTO IMAGES USING TRANSFER LEARNING." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B2-2021 (June 28, 2021): 201–6. http://dx.doi.org/10.5194/isprs-archives-xliii-b2-2021-201-2021.

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Abstract. The task of semantic segmentation is an important one in the context of 3D building modelling. Indeed, developments in 3D generation techniques have rendered the point cloud ubiquitous. However pure data acquisition only captures geometric information and semantic classification remains to be performed, often manually, in order to give a tangible sense to the 3D data. Recently progress in computing power also opened the way for massive application of deep learning methods, including for semantic segmentation purposes. Although well established in the processing of 2D images, deep lea
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Zemenides, Sophia, Joana Dos Santos, Louise Enfield, Athanasios Mantalaris, and Nicki Panoskaltsis. "Metabolism of Acute Myeloid Leukemia Cell Lines Alters with Passage in 2D Culture and Remains Stable in 3D." Blood 132, Supplement 1 (2018): 2787. http://dx.doi.org/10.1182/blood-2018-99-118648.

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Abstract Acute Myeloid Leukemia (AML) is a heterogeneous and complex malignancy of the blood and bone marrow (BM). Current treatment options only cure 40% of patients under the age of 65 years and, over the age of 65 years only 10% will be cured. Hence, there is great urgency to further understand pathogenesis, optimize treatment and identify markers for diagnosis, prognosis and targets for novel therapies. It is increasingly evident that metabolism and BM microenvironment are key factors in AML pathogenesis and progression - entities that cannot be accurately investigated within current in vi
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Hills, Matthew O. G., and Dale R. Durran. "Nonstationary Trapped Lee Waves Generated by the Passage of an Isolated Jet." Journal of the Atmospheric Sciences 69, no. 10 (2012): 3040–59. http://dx.doi.org/10.1175/jas-d-12-047.1.

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Abstract The behavior of nonstationary trapped lee waves in a nonsteady background flow is studied using idealized three-dimensional (3D) numerical simulations. Trapped waves are forced by the passage of an isolated, synoptic-scale barotropic jet over a mountain ridge of finite length. Trapped waves generated within this environment differ significantly in their behavior compared with waves in the more commonly studied two-dimensional (2D) steady flow. After the peak zonal flow has crossed the terrain, two disparate regions form within the mature wave train: 1) upwind of the jet maximum, trapp
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Schroll Astolfi, Rodrigo. "PO 18137 - Development of ankle arthrodesis based on 2D tomography with 3D reconstruction." Scientific Journal of the Foot & Ankle 13, Supl 1 (2019): S28. http://dx.doi.org/10.30795/scijfootankle.2019.v13.1017.

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Objective: To implement a method for analyzing the contour and alignment of the ankle bones in a normal population for a more accurate assessment of tibiotarsal arthrodesis. Methods: Tomographic scans of 20 ankles were subjected to 3D reconstruction. During the examinations, 7 anatomical points of interest for the 3-screw fixation technique were identified and marked with 3D position indicators. The mean locations of each point were calculated. The combination of these means made it possible to reconstruct a standard ankle for that population. In these standard ankles, the lengths and angles f
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Juangphanich, Paht, Cis De Maesschalck, and Guillermo Paniagua. "Turbine Passage Design Methodology to Minimize Entropy Production—A Two-Step Optimization Strategy." Entropy 21, no. 6 (2019): 604. http://dx.doi.org/10.3390/e21060604.

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Rapid aerodynamic design and optimization is essential for the development of future turbomachinery. The objective of this work is to demonstrate a methodology from 1D mean-line-design to a full 3D aerodynamic optimization of the turbine stage using a parameterization strategy that requires few parameters. The methodology is tested by designing a highly loaded and efficient turbine for the Purdue Experimental Turbine Aerothermal Laboratory. This manuscript describes the entire design process including the 2D/3D parameterization strategy in detail. The objective of the design is to maximize the
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Yu, Juan, Nani Ma, Jiaxin Peng, et al. "Different Dimensions of g-C3N4 Nanomaterials on Sulphur Cathode for Lithium Sulfur Batteries." Journal of Nanoscience and Nanotechnology 20, no. 3 (2020): 1643–50. http://dx.doi.org/10.1166/jnn.2020.17345.

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Lithium sulfur batteries (Li–S) have been deemed to be the promising energy-storage systems. Nevertheless, the shuttle effect caused by diffusion of polysulfides limit their application. In this work, the different dimensions of g-C3N4 nanomaterials (2D g-C3N4 nanosheets and 3D g-C3N4 nanomesh) were doped in S electrode. Because of the large specific surface area of 3D g-C3N4 nanomesh and strong chemical adsorption of polysulfides can provide better effect for inhibition of shuttling effect and its proper electron passage make electrochemical kinetics of lithium–sulfur battery enhanced. The di
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Nanduri, Vibudha, Beheita Moein, Avinash Raj Thatipalli, Gopal Pande, and Anasuya Ganguly. "Histochemical and Molecular Characterization of Spongiosal Cells in Native Tissue, Two- and Three-Dimensional Cultures of Rat Aortic Valve." Journal of Histology 2016 (January 4, 2016): 1–8. http://dx.doi.org/10.1155/2016/7680701.

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The histocytochemical and molecular analysis of cells that constitute the aortic valve (AV) of the rat heart was done in this study. We have focussed on the identity of cells in the spongiosal layer of the valve by immunofluorescence studies using lineage specific markers and cytochemical staining. We have established two-dimensional (2D) cultures of cells from isolated rat AV leaflets and maintained endothelial and interstitial valvular cells (IVC) over a period of six to eight weeks. Using “passage 0” cells from 2D valvular cultures, we could reconstruct the three-dimensional (3D) valvular t
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Guo, Tongqing, Di Zhou, and Zhiliang Lu. "A Double-Passage Shape Correction Method for Predictions of Unsteady Flow and Aeroelasticity in Turbomachinery." Advances in Applied Mathematics and Mechanics 9, no. 4 (2017): 839–60. http://dx.doi.org/10.4208/aamm.2016.m1478.

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AbstractIn this paper, a double-passage shape correction (DPSC) method is presented for simulation of unsteady flows around vibrating blades and aeroelastic prediction. Based on the idea of phase-lagged boundary conditions, the shape correction method was proposed aimed at efficiently dealing with unsteady flow problems in turbomachinery. However, the original single-passage shape correction (SPSC) may show the disadvantage of slow convergence of unsteady solutions and even produce nonphysical oscillation. The reason is found to be related with the disturbances on the circumferential boundarie
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Dissertations / Theses on the topic "Passage 3d-2d"

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Allag, Hicham. "MODELES ET CALCUL DES SYSTEMES DE SUSPENSION MAGNETIQUE PASSIVE -DEVELOPPEMENTS ET CALCULS ANALYTIQUES EN 2D ET 3D DES INTERACTIONS ENTRE AIMANTS PERMANENTS-." Phd thesis, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00569274.

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Les suspensions magnétiques passives fonctionnent grâce aux forces d'attraction ou de répulsion exercées entre des aimants permanents. Après avoir donné un panorama des différentes configurations possibles de suspensions magnétiques, le calcul des interactions entre des aimants permanents a été développé. Les calculs sont effectués à des parallélépipèdes aimantés, pour lesquels l'aimantation est représentée par des distributions de charges ou de pôles (approche coulombienne). L'ensemble des interactions (énergie, forces, couples,...etc.) a été calculé par des méthodes entièrement analytiques –
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Nunes, Eduardo. "Inter-relationship of skin pass, 2D and 3D roughness parameters, stampability and paintability on cold rolled steel sheets for the automotive industry." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-24112014-151802/.

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The aim of this research work is to study the inter-relationship, under controlled industrial conditions, among skin pass reductions, surface topography characterized by 2D and 3D roughness parameters, stampability and painted surface finish quality for automotive steel sheet stampings. Different surface textures obtained from cold rolling finishing have been evaluated in terms of paint appearance (rating and spectral curve) and tentatively related to roughness parameters (2D and 3D) obtained from the cold finished sheets. Some relevant tendencies have been established amongst these parameters
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Unnikrishnan, Divya. "Potentiel de la technologie MID pour les composants passifs et des antennes." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GRENT009/document.

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La technologie MID (Molded Interconnect Device), fait de leur performance électrique, la flexibilitédans les circuits RF, le potentiel de réduire le nombre de composants, les étapes du processus et laminiaturisation du produit final, a conduit à de nouvelles contraintes à la RF (Radio Frequency) et ledomaine des micro-ondes. Composants moulés sont interconnectées avec des substratsthermoplastiques et les pistes conductrices sont injectés sur la surface. L'objectif de cette thèse estd'étudier la compatibilité de MID pour les applications RF. Les avantages de la technologie MID dansle domaine RF
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Furtuna, Carmen Daniela. "Modélisation dans l'espace : obstacles du passage du 2D au 3D." Mémoire, 2008. http://www.archipel.uqam.ca/1695/1/M10660.pdf.

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Notre recherche vise l'enseignement de la géométrie au secondaire, en particulier le passage de la géométrie plane (2D) à la géométrie de l'espace (3D). À cet effet nous avons fait une courte analyse du programme d'étude visant l'enseignement de la géométrie de l'espace. Le cadre théorique développé par Houdement et Kuzniak (2005, 2006, 2007) nous a permis de réaliser l'analyse du programme d'étude. Nous avons constaté un manque de continuité à cet égard dans l'enseignement de la géométrie. Le référentiel théorique de la géométrie plane est construit dans l'esprit de la géométrie euclidienne d
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Mandallena, Jean-Philippe. "Sur la relaxation avec contraintes de type déterminant en calcul des variations." Habilitation à diriger des recherches, 2009. http://tel.archives-ouvertes.fr/tel-00551799.

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Les travaux présentés dans ce mémoire concernent principalement le calcul des variations vectoriel lorsque l'intégrande (qui est une fonction matricielle) peut prendre la valeur +∞. Le cas modèle motivant ces travaux (et très important en hyperélasticité) est celui où l'intégrande n'est finie que sur les matrices de déterminant strictement positif.
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Books on the topic "Passage 3d-2d"

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Tourneau, Thierry Le, Luis Caballero, and Tsai Wei-Chuan. Right atrium. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198726012.003.0024.

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The right atrium (RA) is located on the upper right-hand side of the heart and has relatively thin walls. From an anatomical point of view, the RA comprises three basic parts, the appendage, the vestibule of the tricuspid valve, and the venous component (superior and inferior vena cava, and the coronary sinus) receiving the deoxygenated blood. The RA is a dynamic structure dedicated to receive blood and to assist right ventricular (RV) filling. The three components of atrial function are the reservoir function during ventricular systole, the conduit function which consists in passive blood tra
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Book chapters on the topic "Passage 3d-2d"

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Pontes, Julio Silva de, and Celso Ribeiro Campos. "A PASSAGEM DO 3D ↔ 2D NOS ANOS INICIAIS: UMA PROPOSTA POSSÍVEL." In Incompletudes e Contradições para os Avanços da Pesquisa em Matemática. Atena Editora, 2020. http://dx.doi.org/10.22533/at.ed.40520271016.

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Hladky-Hennion, A. C., and J. N. Decarpigny. "APPLICATION OF THE FINITE ELEMENT METHOD TO THE MODELING OF 2D AND 3D PASSIVE OR ACTIVE PERIODIC STRUCTURES." In Ultrasonics International 91. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-7506-0389-8.50097-4.

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Conference papers on the topic "Passage 3d-2d"

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Dees, Jason E., James A. Tallman, Michael A. Heminger, and Daniel Wilde. "Validation of Surface Pressure Predictions for Nozzle Airfoil and Endwall Film Cooling Design Using Transonic Cascade Measurements." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94921.

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This study compares surface pressure measurements and predictions for a high pressure turbine first-stage nozzle vane. The surface pressure measurements were taken in a 3D annular cascade, consisting of four airfoils and five passages. The cascade was uncooled, axisymmetric at both inner and outer endwalls, and reproduced the design intent Reynolds and Mach numbers of the real engine component. Static pressure measurements were taken along the airfoil profile at 15, 50, and 85% span, with duplicate midspan measurements across the four airfoils for assessing the tangential periodicity of the fl
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Ivanov, M. Ja, B. I. Mamaev, and R. Z. Nigmatullin. "United Modeling of Working Process in Aircraft Gas Turbine Engines." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50185.

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This paper is about the modern mathematical models of working process in the whole flow passage of aviation gas turbine engines. These models are referred as high-level models, based on real 3D geometry of engine flow passage. They allow to simulate steady and unsteady processes in 1D, 2D and 3D formulations, calculate engine performances, determine propagation of radial and circular parameter no uniformities in engine flow passage and predict influence of main parameters on engine efficiency. Typical examples of working process simulation in whole engine and their components are presented bel
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Fang, Xiang-Jun, Si-Yong Liu, Ping Wang, and Wei-Jun Zhang. "Application of a 3D Blade Design Method for Supersonic Vaneless Contra-Rotating Turbine." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50510.

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A new 3D blade design method basing on S1 surface, which is approximate the true three-dimensional flows in machinery, is presented in the paper to design the rotor blades of supersonic highly loaded vaneless contra-rotating turbine (abbr. VCRT) with large meridian passage divergence angle. The basic principle of 3D profile design is introduced. The high pressure rotor of highly loaded VCRT was designed with exit Mach number 1.33 and meridian channel divergence angle 37.3°. The results of 3D numerical simulation indicated that the distributions of dynamics parameters are well-proportioned and
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Maffulli, R., and L. He. "Dependence of External Heat Transfer Coefficient and Aerodynamics on Wall Temperature for 3-D Turbine Blade Passage." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26763.

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The dependency of convective heat transfer coefficient (HTC) on wall temperature has been recognized in some previous works but existing corrections are confined to either empirically based correlations or based on a boundary layer approach. A recent study by the present authors on a 2D configuration highlights upstream flow history has a strong impact on HTC for a non-adiabatic blade surface, and such an effect cannot be adequately corrected by the use of existing empirical correlations. A boundary layer based approach may be used in a 2D case for the correction as attempted previously. Howev
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Omri, M., and L. G. Fre´chette. "Computational Investigation of the Three-Dimensional Flow Structure and Losses in a Low Reynolds Number Microturbine." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46587.

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In this work, three dimensional numerical studies of the aerodynamics in laminar subsonic cascades at relatively low Reynolds numbers (Re < 2500) are presented. The stator and rotor blade designs are those for a MEMS-based Rankine microturbine power-plant-on-a-chip with 100 micron chord blades. Blade passage calculations in 2D and 3D were done for different Reynolds numbers, four different tip clearances (0%, 5%, 10% and 20%) and four incidences (0°, 5°, 10° and 15°) to determine the flow patterns and compute losses. These conditions are applied to a blade passage without rotation (stator)
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Chen, Pingting, Xueying Li, Jing Ren, and Hongde Jiang. "Numerical Investigation on the Effect of Slot Leakage on a NGV With 2D Contoured Endwall: Adiabatic Effectiveness and Aerodynamic Loss." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63504.

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Endwall 2D contouring is a typical design to reduce the strength of secondary flows within the passage. Such contouring can lead to significant changes in the passage flow. A leakage slot at the combustor-turbine interface is a typical turbine endwall design. The leakage flow can be used to cool the endwall and vane surface. Moreover, the leakage flow interacts with the main flow and results in the change of aerodynamic loss. A 3D numerical method was used to investigate endwall adiabatic effectiveness and passage total pressure loss coefficient (TPLC) on a NGV with 2D contoured endwall under
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Spataro, Rosario, Gabriele D’Ippolito, and Vincenzo Dossena. "The Influence of Blade Sweep Technique in Linear Cascade Configuration." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45728.

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One key issue in the advanced aerodynamic optimization of turbomachinery involves the application of 3D blade design techniques. The complex shape of the resulting blades is often a combination of simple techniques such as sweep. Such a blade arrangement is often imposed to the designer by structural constrains, space reduction needs, diameter optimization or spanwise blade loading control. This work aims to study the aerodynamic effects produced on turbine passages by blade sweep; with this term we refer to a configuration where the flow mainstream direction and the blade stacking axis are no
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Zhang, Pengfei, Haitao Li, and Zhenping Feng. "Study and Verification of Continuous Adjoint System for Aerodynamic Optimization in Turbomachinery Cascades." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95241.

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This paper is a further study of the authors’ previous work on the continuous adjoint method based on the variation in grid node coordinates and Jacobi Matrices of the flow fluxes. This method simplifies the derivation and expression of the adjoint system, and reduces the computation cost. In this paper, the differences between the presented and the traditional methods are analyzed in details by comparing the derivation processes and the adjoint systems. In order to demonstrate the reliability and accuracy of the adjoint system deduced by the authors, the presented method is applied to differe
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Andreini, A., C. Bianchini, A. Armellini, and L. Casarsa. "Flow Field Analysis of a Trailing Edge Internal Cooling Channel." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45724.

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Internal blade cooling cavities show ever increasing geometrical complexity. Consequently, a deep insight on the flow behavior is mandatory for a reliable design, while trustworthy experimental databases are definitely needed to assess the reliability of numerical prediction tools. Present contribution provides a detailed investigation of the flow field inside a modern internal cooling passage for turbine blade trailing edge. The investigation is carried out by coupling the results of accurate Particle Image Velocimetry (PIV) measurements and steady state CFD predictions. The channel is charac
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Harasgama, S. P. "Combustor Exit Temperature Distortion Effects on Heat Transfer and Aerodynamics Within a Rotating Turbine Blade Passage." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-174.

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A numerical simulation of temperature distortion at inlet to a rotating turbine rotor has been performed. A 3D Navier-Stokes code the 2D boundary layer code - STAN5, have been used. The results show that the hot gas is transported to the pressure surface of the blade and that hot gas also migrates to the blade pressure side tip. At locations greater than 50–60% axial chord the hot gas enters the tip-gap and emerges over the suction side. These computations are in agreement with previous experimental results. The secondary flows within the turbine rotor are enhanced by the introduction of inlet
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