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Relevant bibliographies by topics / Colorimetry Angles (Geometry) Materials

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Journal articles
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Conference papers

Academic literature on the topic 'Colorimetry Angles (Geometry) Materials'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Colorimetry Angles (Geometry) Materials"

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Ma, Qing. "X-ray Scattering Studies of amorphous thin film materials." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C859. http://dx.doi.org/10.1107/s2053273314091402.

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In light of advances in detector technology, we revisit wide angle x-ray scattering techniques and their application to amorphous thin films that are of technological importance. For thin film materials the asymmetrical reflection geometry is employed to avoid the substrate signals. Incident x-ray angles are typically set close to the critical angles. There are various complications related to this geometry, in particular, raw scattering patterns being distorted. In addition, because these materials are typically weak scatterers due to disorder, increased data collection efficiency is always d

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Legait, Benoît, and Pierre Sourieau. "Effect of geometry on advancing contact angles in fine capillaries." Journal of Colloid and Interface Science 107, no. 1 (1985): 14–20. http://dx.doi.org/10.1016/0021-9797(85)90144-4.

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Skalon, Mateusz, Benjamin Meier, Andreas Gruberbauer, Sergio de Traglia Amancio-Filho, and Christof Sommitsch. "Stability of a Melt Pool during 3D-Printing of an Unsupported Steel Component and Its Influence on Roughness." Materials 13, no. 3 (2020): 808. http://dx.doi.org/10.3390/ma13030808.

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The following work presents the results of an investigation of the cause–effect relationship between the stability of a melt pool and the roughness of an inclined, unsupported steel surface that was 3D-printed using the laser powder bed fusion (PBF-L/M) process. In order to observe the balling effect and decrease in surface quality, the samples were printed with no supporting structures placed on the downskin. The stability of the melt pool was investigated as a function of both the inclination angle and along the length of the melt pool. Single-track cross-sections were described by shape par

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Shi, Longqing, and Dongjing Xu. "Effects of Flaw Geometry on the Fracturing Behavior of Rock-Like Materials Containing Two Arch-Like Parallelogram Flaws." Advances in Civil Engineering 2020 (December 5, 2020): 1–15. http://dx.doi.org/10.1155/2020/4814506.

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To increase understanding of the strength and failure mechanism of rocks with arch-like fractures generated in the overlying strata above a gob during coal mining, a series of uniaxial compression tests on rock-like specimens containing two preexisting parallelogram flaws at inclination angles varying from 45° to 75° were made using a rock mechanics servocontrolled testing system. Based on the experimental results, the effects of the inclination angles of two flaws having the same area on the mechanical parameters and fracturing process of the specimens were analyzed in detail. By adopting pho

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Guidoni, G. M., L. H. He, T. Schöberl, I. Jäger, G. Dehm, and M. V. Swain. "Influence of the indenter tip geometry and environment on the indentation modulus of enamel." Journal of Materials Research 24, no. 3 (2009): 616–25. http://dx.doi.org/10.1557/jmr.2009.0110.

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The aim of the investigation was to study the influence of indenter tip geometry on the conventionally obtained indentation modulus of enamel by nanoindentation. Indentation tests on bovine enamel using three different diamond pyramidal indenters with half face angles 65.27°, 45°, and 35.26° were conducted to evaluate the indentation modulus using the Oliver–Pharr method [W.C. Oliver and G.M. Pharr, J. Mater. Res.7, 1564 (1992)]. In addition, three different dehydration conditions were studied: wet under Hank's balanced salt solution, laboratory dried, and vacuum dehydrated. For the Berkovich

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Rollett, A. D., C. C. Yang, W. W. Mullins, et al. "Extraction of Grain Boundary Energies from Triple Junction Geometry." Microscopy and Microanalysis 5, S2 (1999): 230–31. http://dx.doi.org/10.1017/s1431927600014471.

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Measurement of the geometry of triple junctions between grain boundaries in polycrystalline materials is used to generate large sets of dihedral angles from which maps of the grain boundary energy are extracted. A preliminary analysis has been performed for samples of magnesia and aluminum based on a three-parameter description of grain boundaries. An extended form of orientation imaging microscopy (OIM) was used to measure both triple junction geometry via image analysis in the SEM and local grain orientation via electron back scatter diffraction. Serial sectioning with registry of both in-pl

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Heinrich, S. M., P. E. Liedtke, N. J. Nigro, A. F. Elkouh, and P. S. Lee. "Effect of Chip and Pad Geometry on Solder Joint Formation in SMT." Journal of Electronic Packaging 115, no. 4 (1993): 433–39. http://dx.doi.org/10.1115/1.2909353.

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An analytical model of solder joint formation during a surface mount reflow process is developed for two-dimensional fillets whose flow may be restricted due to “finite” metallizations on a leadless component and the printed circuit board. Although these height and length constraints on the fillet geometry may result in obtuse contact angles, the solution is obtained in the form of an explicit integral, similar to that previously derived by the authors for the case of acute contact angles. This solution may also be recast into the form of elliptic integrals of the first and second kinds, there

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Damghani, Mahdi, Jerzy Bakunowicz, and Adrian Murphy. "Understanding the influence of laminate stacking sequence on strain/stress concentrations in thin laminates at repair holes with large scarf angles." Journal of Composite Materials 53, no. 28-30 (2019): 4273–84. http://dx.doi.org/10.1177/0021998319855772.

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Scarf repair is widely used in the restoration of structural performance of damaged aircraft secondary structures. Such repairs result in reduced thickness sections which are significantly larger than those associated with typical fastener holes. Significant literature exists on the distribution of strain/stress concentration in fastener hole geometries, both straight sided and countersunk, but is lacking for the geometries associated with shallow scarf angles and thin laminates. Hence, herein three-dimensional finite element models are developed to understand the influence of stacking sequenc

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Kaduk, James A. "Chemical reasonableness in Rietveld analysis; organics." Powder Diffraction 22, no. 1 (2007): 74–82. http://dx.doi.org/10.1154/1.2464129.

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We know a lot about normal values of bond distances, bond angles, torsion angles, and other molecular parameters. This knowledge can be incorporated into the structure solution process and into Rietveld refinement through the use of restraints and rigid bodies. An important measure of the quality of the refined model is the chemical reasonableness of molecular geometry. Refinement of the structures of calcium tartrate tetrahydrate and guaifenesin is used to illustrate the importance of chemical reasonableness in determining the quality of a Rietveld refinement.

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Reischig, Péter, Andrew King, Laura Nervo, et al. "Advances in X-ray diffraction contrast tomography: flexibility in the setup geometry and application to multiphase materials." Journal of Applied Crystallography 46, no. 2 (2013): 297–311. http://dx.doi.org/10.1107/s0021889813002604.

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Diffraction contrast tomography is a near-field diffraction-based imaging technique that provides high-resolution grain maps of polycrystalline materials simultaneously with the orientation and average elastic strain tensor components of the individual grains with an accuracy of a few times 10−4. Recent improvements that have been introduced into the data analysis are described. The ability to process data from arbitrary detector positions allows for optimization of the experimental setup for higher spatial or strain resolution, including high Bragg angles (0 < 2θ < 180°). The geometry r

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Dissertations / Theses on the topic "Colorimetry Angles (Geometry) Materials"

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Miller, R. Mitchell. "Implementation of a research goniospectrophotometer for appearance research /." Online version of thesis, 1989. http://ritdml.rit.edu/handle/1850/11365.

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Rocha, Mariana Rodolfo. "Construindo o conceito de ângulo a partir da sua mobilização em diversos contextos e da utilização de materiais manipulativos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/178234.

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Esta dissertação apresenta uma experiência de abordagem do conceito de ângulo a partir de sua mobilização em diversos contextos, com a utilização de diferentes materiais manipulativos. O estudo foi desenvolvido com alunos do sétimo ano do Ensino Fundamental de uma escola pública municipal de Canoas, no Rio Grande do Sul. Inspirada pelo desenvolvimento do conceito de ângulo por abstração progressiva proposta por Michael Mitchelmore e Paul White e embasada na teoria da abstração reflexionante de Jean Piaget, foram desenvolvidas e analisadas atividades exploratórias em diferentes contextos e util

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Conference papers on the topic "Colorimetry Angles (Geometry) Materials"

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Murugan, Muthuvel, Anindya Ghoshal, Fei Xu, et al. "Articulating Turbine Rotor Blade Concept for Improved Off-Design Performance of Gas Turbine Engines." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9045.

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Gas turbine engines are generally optimized to operate at nearly a fixed speed with fixed blade geometries for the design operating condition. When the operating condition of the engine changes, the flow incidence angles may not be optimum with the blade geometry resulting in reduced off-design performance. Articulating the pitch angle of turbine blades in coordination with adjustable nozzle vanes can improve performance by maintaining flow incidence angles within the optimum range at all operating conditions of a gas turbine engine. Maintaining flow incidence angles within the optimum range c

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Yao, Yongtao, Andrew Alderson, Kim Lesley Alderson, and Jinsong Leng. "Modelling of the Structure-Property Relationships in Auxetic Nanotube." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8194.

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In this project, fully generalised analytical expressions for longitudinal Young’s modulus are developed for zigzag Single-Walled Nanotubes (SWNTs), based on a hexagonal honeycomb motif, using an energy equivalent approach. Honeycomb geometry (bond lengths and angles), and bond-stretch and bond-angle force constants are considered as variable parameters and deformation is assumed due to simultaneous bond stretching and bond angle variation in response to an applied axial load. A parametric study is then performed to explore the structure-property relationships in auxetic (negative Poisson’s ra

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Razavi, Reza, and Stephen A. Sarles. "Modeling and Experiments on Liquid-Infused, Mechanically Activated Porous Materials." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9046.

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The goal of our research is to develop new understanding regarding the design and fabrication of mechanically activated liquid-infused porous films. Our unique approach is to consider a thin, elastic material that features well-defined pores, which are plugged with an infusing liquid that preferentially wets to the walls of the pores. By tuning the geometry of the pores, liquid-filled pores can be rearranged into a configuration that creates an open pore by applying stretch to the solid material, and they close (i.e. heal) again when the stretch is removed. Impregnating the pores with liquid s

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Abbott, Andrew C., Philip R. Buskohl, James J. Joo, Gregory W. Reich, and Richard A. Vaia. "Characterization of Creases in Polymers for Adaptive Origami Structures." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7480.

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Techniques employed in origami are of interest for the design of actuating structures with multiple defined geometric states. Most research in this area has focused on manipulating material chemistry or geometry to achieve folding, but crease development through full material thickness has not been studied in detail. Understanding creasing is crucial for establishing material selection guidelines in origami engineering applications. Identification of the precise failure mechanisms is critical for understanding the residual fold angle and selecting optimal materials for specific origami applica

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Mateti, Kiron, Rory A. Byrne-Dugan, Srinivas A. Tadigadapa, and Christopher D. Rahn. "SUEX Flapping Wing Mechanisms for Pico Air Vehicles." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8092.

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This paper introduces a simple and low cost flapping wing mechanism fabricated monolithically from SUEX dry film, an epoxy based negative photoresist similar to SU-8. The developed process has fewer steps compared to other methods, does not use precious metals, and greatly reduces processing time and cost. It simultaneously defines the PAV airframe, compliant flapping mechanism, and artificial insect wing using photolithography. Rapid prototypes were fabricated with precisely defined features and material properties and geometry that are similar to insects. A linear model with simplified aerod

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DeGiorgi, Virginia G., and Stephanie A. Wimmer. "Influence of Geometric Features and Material Orientation in Piezoelectric Ceramic Materials." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79194.

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Orientation between loading and material property directions is a concern for both polycrystalline and single crystal piezoelectric materials. The design of devices fabricated from piezoelectric materials emphasizes alignment between principal actuation direction and a specific coupling coefficient direction. However, loading and actuation directions may not always be aligned. Complex component geometry, multiple loading types, multiple loading paths and fabrication tolerances may result in misalignment between mechanical loading direction, principal actuation direction, electrical loading dir

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Wang, Yancheng, Roland K. Chen, Bruce L. Tai, and Albert J. Shih. "Advanced Five-Plane Lancet Needle Design, Grinding, and Tissue Insertion." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-4046.

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The needle with lancet point (NLP), having three planes at the tip to generate a sharp lancet point, is the most common needle tip geometry. This research presents two five-plane lancet needle designs, the five-plane lancet needle with two back bevels (FLN-B) and five-plane lancet needle with two front bevels (FLN-F), to study the effect of two additional bevel planes on the reduction of soft tissue insertion force over that of the NLP. The mathematical models for inclination and rake angles along the cutting edges, and the grinding procedure and setup parameters for FLN-B and FLN-F are develo

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Zhao, Qishen, Nan Hong, Dongmei Chen, and Wei Li. "Controlling Peeling Front Geometry in a Roll-to-Roll Thin Film Transfer Process." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8507.

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Abstract Mechanical peeling is becoming an important manufacturing process in areas such as transfer printing and two-dimensional (2D) materials fabrication. Existing research has demonstrated the potential of successful peeling in small-scale by hand or with a robotic system. However, to scale up the manufacturing process, a roll-to-roll continuous system is needed. It is generally understood that the peeling front characteristics, including peeling angles, speed, and tension, are critical to the quality of the peeling process. In a roll-to-roll setting, controlling these characteristics beco

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Toropova, Marina M., and Craig A. Steeves. "Thermal Actuation Through Bimaterial Lattices." In ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/smasis2015-8855.

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The goal of this study is to examine the theoretical capability of bimaterial lattices as thermally driven actuators. The lattices are composed of planar non-identical cells. Each cell consists of a skewed hexagon surrounding an irregular triangle; the skew angles of the hexagon and the ratio of the coefficients of thermal expansion (CTEs) of the two component materials determine the overall performance of the actuator. Such a cell has three tailorable CTEs along the lines connecting the points where adjoining cells are connected. Each individual cell and a lattice consisting of such cells can

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Han, Peidong, Kumar Pallav, and Kornel Ehmann. "Force Model for Needle-Tissue Interaction." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7257.

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Force modeling of needle insertion into soft tissue is important for accurate needle placement and efficient tissue cutting. In this paper, we studied the pre-puncture and puncture forces during needle insertion. A plane strain FE model was developed to simulate the pre-puncture force prior to tissue rupture. A sensitivity study was performed to investigate the influence of needle and tissue characteristics on pre-puncture force using FE simulation. A force model that incorporates needle geometry and tissue properties was proposed. The force model was able to accurately predict the needle tip

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