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Thematische Bibliographien / SEM contours / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „SEM contours“

Autor: Grafiati

Veröffentlicht am 7. Juli 2024

Zuletzt aktualisiert am 7. Juli 2024

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1

Weisbuch, François, and Jirka Schatz. "Characterizing interlayer edge placement with SEM contours." Journal of Micro/Nanolithography, MEMS, and MOEMS 18, no. 02 (2019): 1. http://dx.doi.org/10.1117/1.jmm.18.2.021203.

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Zhao, Zhouxiang, Hongwu Wu, Meng Zhang, Shiqiang Fu, and Kang Zhu. "Fiber Orientation Reconstruction from SEM Images of Fiber-Reinforced Composites." Applied Sciences 13, no. 6 (2023): 3700. http://dx.doi.org/10.3390/app13063700.

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The orientation of fibers in composites reinforced with short fibers can provide insight into the microstructure of the material and considerably affect its macroscopic characteristics. However, the present standard techniques for detecting fiber orientation and length based on microscopic image processing have faults in practical applications, including high effort, low efficiency, and unreliable measurement results. In this study, a method for measuring fiber orientation based on 3D reconstructions of scanning electron microscope (SEM) images is provided. The geodesic active contour (GAC) mo

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Lakshmanan, N., B. K. Raghuprasad, N. Gopalakrishnan, R. Sreekala, and G. V. Rama Rao. "Comparative study on damage identification from Iso-Eigen-Value-Change contours and smeared damage model." Structural Engineering and Mechanics 35, no. 6 (2010): 735–58. http://dx.doi.org/10.12989/sem.2010.35.6.735.

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Danilatos, G. D. "Gas-flow field in the environmental SEM." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1298–99. http://dx.doi.org/10.1017/s0424820100131127.

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The study of the gas flow in the environmental SEM (ESEM) is important both for the instrument design and for determining the environmental conditions around the specimen. Some results from such a study were published previously and the present report is a continuation from the same work. The Monte Carlo simulation method for the gas flow was used. Of particular importance is the question on the flow field contours as the specimen approaches the pressure limiting aperture (PLA) and the question on the mass density of the supersonic jet formed above the plane of the PLA and on the mass density

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Lin, Manqing, Lan Zhang, Xiqi Liu, Yuanyou Xia, Jiaqi He, and Xiaosu Ke. "The Meso-Analysis of the Rock-Burst Debris of Rock Similar Material Based on SEM." Advances in Civil Engineering 2020 (April 3, 2020): 1–13. http://dx.doi.org/10.1155/2020/9168908.

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In order to explore the specimen failure characteristics during rock-burst under different gradient stress conditions, in this paper, a novel experimental technique was proposed; a common series of tests under two gradient stress paths were conducted on rock similar material specimens using the true-triaxial gradient and hydraulic-pneumatic combined test apparatus. And plaster was used as the rock similar material. In the experimental process, several rock-burst debris with area sizes of 100 mm2 were collected, and the fractal dimensions of typical detrital section crystal contours were analyz

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Bonta, Steven. "The lens of firstness: Shamanic/Aboriginal culture as cosmos-sign." Semiotica 2018, no. 221 (2018): 143–73. http://dx.doi.org/10.1515/sem-2016-0139.

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AbstractHaving identified previously (Bonta 2015) the Peircean Category Firstness as the semiotic basis (or cultural Prime Symbol) for Australian Aboriginal culture, this paper examines the “lens” of Firstness as it is manifest in a variety of aboriginal (or “Shamanic”) cultures worldwide. By studying the semiotic contours of religion, language, social organization, and art, we find systemic prioritization of Firstness in its various manifestations, across a wide range of aboriginal cultures from Australia to the Indian Subcontinent to aboriginal Siberia and the New World. Shamanic culture, de

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Amato, Philip A., Mark Lelental, and Ray C. Bowen. "Quantitative image analysis of superconductor thin film microstructure: The use of conditional, multiparametric, shape-analysis algorithms." Journal of Materials Research 8, no. 11 (1993): 2799–809. http://dx.doi.org/10.1557/jmr.1993.2799.

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We have developed a novel approach for quantifying the microstructure of granular thin films using digital image processing and analysis. In the past, conventional scanning electron microscopy of thin films has generated qualitative information on the surface topography and film microstructure. However, when coupled to digital image analysis, the amount or degree of surface contours (i.e., granularity) in SEM micrographs can be quantified in a rapid and reproducible manner. Briefly, SEM micrographs are digitized and the edge boundaries on the film surface are enhanced by a gradient filter; gra

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Colas-Blaise, Marion. "Texte, textualisation et pratique : Le devenir de l'énonciation." Semiotica 2017, no. 219 (2017): 293–314. http://dx.doi.org/10.1515/sem-2017-0065.

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RésuméConvoquant le cadre théorique de la sémiotique (post-)greimassienne, cette contribution se propose de cibler quelques-unes des étapes ayant marqué la réflexion sur l’énonciation depuis les années 1970–1980, avant d’esquisser les contours d’une sémiotique de l’énonciation comme pratique située. Ainsi, après avoir rappelé que la théorie de l’énonciation « énoncée » (Greimas et Courtés 1979) invite à repérer les marques laissées dans le texte par l’énonciation, qui est présupposée, virtuelle et hypothétique, nous visons à rendre compte de la dynamique de la constitution du texte (textualisa

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Laval, J. Y., M. H. Berger, and C. Cabanel. "In Situ Electrical and Microstructural Characterization of Individual Boundaries." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 336–37. http://dx.doi.org/10.1017/s0424820100164143.

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In order to get direct information on the relationships between the structural and electrical properties of interfaces, we developed in situ experiments in TEM-STEM and SEM for the characterization of the local behaviour of majority and minority carriers. In particular, we described here our new technique for local determination of interfacial potential barriers in electronic ceramics. This information is completed by voltage contrast imaging in SEM at 1 kV which enables a full map of the distribution of these interfacial barriers to be obtained.The TEM experiment is schematized in fig. 1. A t

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Jamshidi, Maryam, and Cavus Falamaki. "Image analysis method for heterogeneity and porosity characterization of biomimetic hydrogels." F1000Research 9 (December 15, 2020): 1461. http://dx.doi.org/10.12688/f1000research.27372.1.

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This work presents an image processing procedure for characterization of porosity and heterogeneity of fully hydrated hydrogels based on the analysis of cryogenic scanning electron microscopy (cryo-SEM) images. An algorithm consisting of different filtering, morphological transformation, and thresholding steps to denoise the image whilst emphasizing the hydrogel fibres edges for extracting the pores features is explained. Finally, the information of hydrogel porosity and heterogeneity is presented in form of pore size distribution, spatial contours maps and kernel density dot plots. The obtain

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Apkarian, R. P. "Condenser-objective lens SE microscopy: application for high - resolution imaging of cell membranes." Proceedings, annual meeting, Electron Microscopy Society of America 45 (August 1987): 564–67. http://dx.doi.org/10.1017/s0424820100127359.

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Recent developments in high brightness field emission (FE) and LaB6 electron sources for scanning electron microscopes (SEM) equipped with condenser-objective lens specimen stages has resulted in the collection of secondary electron (SE) signals that contain unsurpassed high resolution topographic contrasts. High resolution low loss images were described for a condenser-objective lens SEM when SE contrasts were first being scrutinized. The low energy SE-I imaging mode contains contrasts generated by only specimen specific SE-I and II. The SE-I signal is produced by the primary electron beam in

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Musekamp, Jens, Thorsten Reiber, Holger Claus Hoche, Matthias Oechsner, Matthias Weigold, and Eberhard Abele. "Influence of LPBF-Surface Characteristics on Fatigue Properties of Scalmalloy®." Metals 11, no. 12 (2021): 1961. http://dx.doi.org/10.3390/met11121961.

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Laser powder bed fusion (LPBF) has indisputable advantages when designing new components with complex geometries due to toolless manufacturing and the ability to manufacture components with undercuts. However, fatigue properties rely heavily on the surface condition. In this work, in-process surface parameters (three differing contour parameter sets) and post-process surface treatments, namely turning and shot peening, are varied to investigate the influence of each treatment on the resulting fatigue properties of LPBF-manufactured specimens of the aluminium–magnesium–scandium alloy Scalmalloy

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Balan, Nikita N., Vladidmir V. Ivanov, Alexey V. Kuzovkov, Evgenia V. Sokolova, and Evgeniy S. Shamin. "Basic approaches to simulation of resist mask formation in computational lithography." Modern Electronic Materials 6, no. 1 (2020): 37–45. http://dx.doi.org/10.3897/j.moem.6.1.55056.

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Main currently used resist mask formation models and problems solved have been overviewed. Stages of "full physical simulation" have been briefly analyzed based on physicochemical principles for conventional diazonapthoquinone (DNQ) photoresists and chemically enhanced ones. We have considered the concepts of the main currently used compact models predicting resist mask contours for full-scale product topologies, i.e., VT5 (Variable Threshold 5) and CM1 (Compact Model 1). Computation examples have been provided for full and compact resist mask formation models. Full resist mask formation simul

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Dandagi, Shivaprasad, Umesh Bhushi, Virupaxi Bagodi, and Deepankar Sinha. "Strategic management of technical university: structural equation modelling approach." Journal of Modelling in Management 11, no. 1 (2016): 75–90. http://dx.doi.org/10.1108/jm2-05-2014-0034.

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Purpose – The purpose of this paper is to examine the constructs and establish causal relationship between factors for strategically governing a technical university in Indian context. Further, the paper carries out a systemic study to emphasize on the need for these universities to design strategies that are endurable and sustainable. Design/methodology/approach – A structured questionnaire survey was carried out (207 responses). Factor analysis was carried out to bring out the latent variables representing the attributes, and later, the causality between these variables was established using

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Koinkar, Vilas N., and Bharat Bhushan. "Scanning and transmission electron microscopies of single-crystal silicon microworn/machined using atomic force microscopy." Journal of Materials Research 12, no. 12 (1997): 3219–24. http://dx.doi.org/10.1557/jmr.1997.0421.

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Atomic force microscopy (AFM) is commonly used for microwear/machining studies of materials at very light loads. To understand material removal mechanism on the microscale, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies were conducted on the microworn/machined single-crystal silicon. SEM studies of micromachined single-crystal silicon indicate that at light loads material is removed by ploughing. Fine particulate debris is observed at light loads. At higher loads, cutting type and ribbon-like debris were observed. This debris is loose and can be easily re

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Shalaby, Abouzeid M. "Isomorphic Hilbert spaces associated with different complex contours of the $\mathcal{PT}$-symmetric (-x4) theory." International Journal of Modern Physics A 29, no. 11n12 (2014): 1450059. http://dx.doi.org/10.1142/s0217751x14500596.

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In this work, we stress the existence of isomorphisms which map complex contours from the upper half to contours in the lower half of the complex plane. The metric operator is found to depend on the chosen contour but the maps connecting different contours are norm-preserving. To elucidate these features, we parametrized the contour [Formula: see text] considered in Phys. Rev. D 73, 085002 (2006) for the study of wrong sign x4 theory. For the parametrized contour of the form [Formula: see text], we found that there exists an equivalent Hermitian Hamiltonian provided that a2c is taken to be rea

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Jamshidi, Maryam, and Cavus Falamaki. "Image analysis method for heterogeneity and porosity characterization of biomimetic hydrogels." F1000Research 9 (April 12, 2021): 1461. http://dx.doi.org/10.12688/f1000research.27372.2.

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This work presents an image processing procedure for characterization of porosity and heterogeneity of hydrogels network mainly based on the analysis of cryogenic scanning electron microscopy (cryo-SEM) images and can be extended to any other type of microscopy images of hydrogel porous network. An algorithm consisting of different filtering, morphological transformation, and thresholding steps to denoise the image whilst emphasizing the edges of the hydrogel walls for extracting either the pores or hydrogel walls features is explained. Finally, the information of hydrogel porosity and heterog

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Eckert, Aubrey, Nevin Martin, Ryan G. Coe, Bibiana Seng, Zacharia Stuart, and Zachary Morrell. "Development of a Comparison Framework for Evaluating Environmental Contours of Extreme Sea States." Journal of Marine Science and Engineering 9, no. 1 (2020): 16. http://dx.doi.org/10.3390/jmse9010016.

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Environmental contours of extreme sea states are often utilized for the purposes of reliability-based offshore design. Many methods have been proposed to estimate environmental contours of extreme sea states, including, but not limited to, the traditional inverse first-order reliability method (I-FORM) and subsequent modifications, copula methods, and Monte Carlo methods. These methods differ in terms of both the methodology selected for defining the joint distribution of sea state parameters and in the method used to construct the environmental contour from the joint distribution. It is often

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Mohamed, Omar Ahmed, Syed Hasan Masood, and Jahar Lal Bhowmik. "Influence of processing parameters on creep and recovery behavior of FDM manufactured part using definitive screening design and ANN." Rapid Prototyping Journal 23, no. 6 (2017): 998–1010. http://dx.doi.org/10.1108/rpj-12-2015-0198.

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Purpose The purpose of this paper is to investigate the effect of process parameters of fused deposition modelling (FDM) 3D printing process on viscoelastic responses (creep compliance and recoverable compliance) of FDM built parts using a novel experimental design technique. Design/methodology/approach As part of the process characterization, a recently developed class of three-level design methodology – definitive screening design (DSD) – was used in this study to fit a second-order polynomial regression model. Artificial neural network (ANN) was also used to determine the optimal process pa

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Russ, J. C., T. M. Hare, R. P. Christensen, K. T. Hare, and J. C. Russ. "SEM low magnification stereoscopic technique for mapping surface contours: application to measurement of volume differences in human teeth due to polishing." Journal of Microscopy 144, no. 3 (1986): 329–38. http://dx.doi.org/10.1111/j.1365-2818.1986.tb02810.x.

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Atif, Rasheed, Madeleine Combrinck, Jibran Khaliq, et al. "Solution Blow Spinning of High-Performance Submicron Polyvinylidene Fluoride Fibres: Computational Fluid Mechanics Modelling and Experimental Results." Polymers 12, no. 5 (2020): 1140. http://dx.doi.org/10.3390/polym12051140.

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Computational fluid dynamics (CFD) was used to investigate characteristics of high-speed air as it is expelled from a solution blow spinning (SBS) nozzle using a k-ε turbulence model. Air velocity, pressure, temperature, turbulent kinetic energy and density contours were generated and analysed in order to achieve an optimal attenuation force for fibre production. A bespoke convergent nozzle was used to produce polyvinylidene fluoride (PVDF) fibres at air pressures between 1 and 5 bar. The nozzle comprised of four parts: a polymer solution syringe holder, an air inlet, an air chamber, and a cap

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Brandt, Bjoern, and Torsten Rabe. "Structuring of LTCC Substrates by a Combination of Pressure-Assisted Sintering and Hot-Embossing." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, CICMT (2015): 000297–303. http://dx.doi.org/10.4071/cicmt-tha24.

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A novel technology for the structuring of LTCC surfaces is introduced. The material is shaped in a zero-shrinkage process by embossing a glassy carbon mold into the softened LTCC directly after termination of the shrinkage. Three commercially available LTCC compositions (Ceramtape GC, Heratape CT707, and DP951) were tested. Diverse raised and lowered structures including rings, grids, and characters were fabricated. Different material behavior was observed for the tested compositions. Promising results were achieved with Ceramtape GC. Embossing of precise, 40 μm deep circular cavities and 50 μ

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Chen, Liang-Chia, and Chie-Chan Ho. "Submerged Arc Spray Synthesis of TiO2 Nanoparticles with Desired Form Sphericity Using Process Characterization and Optimization." Journal of Nanoscience and Nanotechnology 8, no. 2 (2008): 518–26. http://dx.doi.org/10.1166/jnn.2008.d248.

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This article presents a study on process characterization and optimization of the metal nanoparticle fabrication process known as the submerged arc spray nanoparticle synthesis system (SANSS) for obtaining desired geometric sphericity of nanoparticles. The geometric shape characteristics of nanoparticles pose significant impact on innovative product and process design. The sphericity and surface roughness of prepared TiO2 nanoparticles can vary widely and are influenced by the process parameters being employed in the SANSS. To improve this, an in-situ nanofluid sampling and measurement approac

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Słomińska, Lucyna, Roman Zielonka, Leszek Jarosławski, et al. "High pressure impact on changes in potato starch granules." Polish Journal of Chemical Technology 17, no. 4 (2015): 65–73. http://dx.doi.org/10.1515/pjct-2015-0070.

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Abstract Air dry potato starch (84.9% d.s.) was subjected to pressurizing under the pressure of 50, 100, 250, 500, 750, 1000 and 2000 MPa for 1 h. The physical properties of pressurized starch, such as morphology, surface and crystalline structure, gelatinization parameters, were studied by means of scanning and atomic force microscopy (SEM/AFM), X-ray diffraction (X-ray), differential scanning calorimetry (DSC). The susceptibility to the amylolytic enzyme (α-amylase) was also measured. Application of pressure in the range of 50–2000 MPa results in an increase in the compressed potato starch b

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Zhou, Han, Yikun Li, Ying Gu, Zetian Shen, Xixu Zhu, and Yun Ge. "A deep learning based automatic segmentation approach for anatomical structures in intensity modulation radiotherapy." Mathematical Biosciences and Engineering 18, no. 6 (2021): 7506–24. http://dx.doi.org/10.3934/mbe.2021371.

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<abstract> <sec><title>Objective</title><p>To evaluate the automatic segmentation approach for organ at risk (OARs) and compare the parameters of dose volume histogram (DVH) in radiotherapy. Methodology: Thirty-three patients were selected to contour OARs using automatic segmentation approach which based on U-Net, applying them to a number of the nasopharyngeal carcinoma (NPC), breast, and rectal cancer respectively. The automatic contours were transferred to the Pinnacle System to evaluate contour accuracy and compare the DVH parameters.</p> </sec> &l

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Poom, Leo. "Visual Inter-Attribute Contour Completion." Perception 30, no. 7 (2001): 855–65. http://dx.doi.org/10.1068/p3222.

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A new visual phenomenon, inter-attribute illusory (completed) contours, is demonstrated. Contour completions are perceived between any combination of spatially separate pairs of inducing elements (Kanizsa-like ‘pacman’ figures) defined either by pictorial cues (luminance contrast or offset gratings), temporal contrast (motion, second-order-motion or ‘phantom’ contours), or binocular-disparity contrast. In a first experiment, observers reported the perceived occurrence of contour completion for all pair combinations of inducing elements. In a second experiment they rated the perceived clarity o

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Cremasco, Suzana Santi. "O artigo 485, VII, do Novo Código de Processo Civil e o reconhecimento de competência pelo árbitro como pressuposto processual negativo no processo judicial." Revista Brasileira de Arbitragem 14, Issue 53 (2017): 7–23. http://dx.doi.org/10.54648/rba2017001.

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RESUMO: O novo Código de Processo Civil – Lei nº 13.105/2015 –, embora tenha respeitado a sistemática da arbitragem trazida pela Lei nº 9.307/1996, contemplou alguns avanços importantes na interface entre a arbitragem e o processo judicial. Uma das maiores inovações, sem dúvida, é o reconhecimento da convenção de arbitragem pelo árbitro como causa de extinção do processo sem resolução de mérito (art. 485, VII, parte final), em claro prestígio ao princípio da competência-competência tão consolidado no universo arbitral. Ao fazê-lo, o legislador de 2015 cria uma nova modalidade de pressuposto pr

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Berger, Anne, Yen-Chun Chen, Jacqueline Gatzemeier, Felix N. Buechi, and Hubert Andreas Gasteiger. "Importance of Directed Water Removal: Intruding Microporous Layer Material into the Gas Diffusion Layer Substrate." ECS Meeting Abstracts MA2023-02, no. 37 (2023): 1766. http://dx.doi.org/10.1149/ma2023-02371766mtgabs.

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Proton exchange membrane fuel cells (PEMFC) are an essential component of net zero emission scenarios by the International Energy Agency (IEA), most prominent in the heavy-duty transportation sector.[1-2] During operation, the PEMFC is subject to different operating conditions, particularly wet conditions where liquid water removal is crucial. It was observed that a microporous layer (MPL), commonly consisting of a carbon component (e.g. carbon black, carbon fibers) and a hydrophobic binder (e.g. PTFE), placed at the interface of the catalyst layer (CL) and the gas diffusion layer substrate (G

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Director, Hannah M., Adrian E. Raftery, and Cecilia M. Bitz. "Improved Sea Ice Forecasting through Spatiotemporal Bias Correction." Journal of Climate 30, no. 23 (2017): 9493–510. http://dx.doi.org/10.1175/jcli-d-17-0185.1.

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A new method, called contour shifting, is proposed for correcting the bias in forecasts of contours such as sea ice concentration above certain thresholds. Retrospective comparisons of observations and dynamical model forecasts are used to build a statistical spatiotemporal model of how predicted contours typically differ from observed contours. Forecasted contours from a dynamical model are then adjusted to correct for expected errors in their location. The statistical model changes over time to reflect the changing error patterns that result from reducing sea ice cover in the satellite era i

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D’Iglio, Claudio, Sergio Famulari, Marco Albano, et al. "Intraspecific variability of the saccular and utricular otoliths of the hatchetfish Argyropelecus hemigymnus (Cocco, 1829) from the Strait of Messina (Central Mediterranean Sea)." PLOS ONE 18, no. 2 (2023): e0281621. http://dx.doi.org/10.1371/journal.pone.0281621.

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Mesopelagic species are enjoining increasing attention due to the growing impact of fisheries activities on deep marine biocenosis. Improving the knowledge base on mesopelagic species is required to enhance their conservation due to the knowledge gaps regarding many species and families. In this context, otoliths can be fundamental to assessing their life history, ecomorphological adaptation to the deep environment and stock composition. The present paper aims to explore the saccular and utricular otoliths morphology and intra-specific variability of the hatchetfish, Argyropelecus hemigymnus,

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Bouzouaid, Samia, and Hachem Chaib. "Effects of glass powder and Gypsum (Timchemt) on the thermal and mechanical properties of plaster bricks." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 1 (2024): 59–82. http://dx.doi.org/10.54021/seesv5n1-004.

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The present research aims to study the effect of glass powder extracted from the glass waste disposal area in Ouargla (southern Algeria) on the thermo mechanical properties of plaster bricks. Therefore, density, compressive strength, flexural strength, thermal conductivity, and thermal resistance were measured in the laboratory using mixtures generated through the response surface methodology (RSM). This RSM technique was used to assess the influence of gypsum (95% – 100%) and glass powder (0% – 5%) on the behavior of hardened plaster bricks. The experimental results and RSM evaluation show a

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Panjan, Peter, Peter Gselman, Matjaž Panjan, et al. "Microstructure and Surface Topography Study of Nanolayered TiAlN/CrN Hard Coating." Coatings 12, no. 11 (2022): 1725. http://dx.doi.org/10.3390/coatings12111725.

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The microstructure and surface topography of PVD hard coatings are among the most important properties, as they significantly determine their mechanical, tribological and other properties. In this study, we systematically analyzed the microstructure and topography of a TiAlN/CrN nanolayer coating (NL-TiAlN/CrN), not only because such coatings possess better mechanical and tribological properties than TiAlN and CrN monolayer coatings, mainly because the contours of the individual layers, in the cross-sectional STEM or SEM images of such coatings, make it easier to follow topographic and microst

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Baumann, Brian C., Walter Bosch, Amit Bahl, et al. "Development and validation of contouring guidelines for post-cystectomy adjuvant radiation of bladder cancer." Journal of Clinical Oncology 34, no. 2_suppl (2016): 409. http://dx.doi.org/10.1200/jco.2016.34.2_suppl.409.

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409 Background: Several organizations are developing clinical trials to evaluate adjuvant radiotherapy (RT) for bladder cancer patients at elevated risk of locoregional failure (LF). However, the clinical target volumes (CTVs) & organs at risk (OARs) for this treatment have not been defined in detail. Our purpose was to define multi-institutional consensus CTVs & OARs for male & female bladder cancer patients undergoing adjuvant RT in clinical trials. Methods: We convened a multi-disciplinary group of bladder cancer specialists from 9 centers in 3 countries. 5 radiation oncologists

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Wrang, Linus, Eirini Katsidoniotaki, Erik Nilsson, Anna Rutgersson, Jesper Rydén, and Malin Göteman. "Comparative Analysis of Environmental Contour Approaches to Estimating Extreme Waves for Offshore Installations for the Baltic Sea and the North Sea." Journal of Marine Science and Engineering 9, no. 1 (2021): 96. http://dx.doi.org/10.3390/jmse9010096.

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At the stage of design load analysis for offshore installations such as wave energy systems, a critical step is the determination of environmental cases to be evaluated for the definition of the characteristic design load. A commonly used methodology for load case selection, applied in multiple studies and recommended by technical specifications and guidelines, is the environmental contour approach. Here, 50-year environmental contours were generated for four study sites located in the North Sea, Skagerrak and the Baltic Sea by considering both observations and hindcast (model) data. For the c

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Mikulić, Antonio, and Joško Parunov. "Environmental Contours in the Adriatic Sea for Design and Analysis of Marine Structures." Journal of Marine Science and Engineering 11, no. 5 (2023): 899. http://dx.doi.org/10.3390/jmse11050899.

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The environmental contours represent an approach for defining extreme environmental conditions, resulting in extreme responses of marine structures with a given return period. Over the past decade, an increasing number of studies have been developed dealing with the methods for defining environmental contours and enhancing their practical application in different marine environments. In the present study, environmental contours describing significant wave heights and peak wave periods are created for the Adriatic Sea. This small semi-enclosed sea basin within the Mediterranean Sea encounters i

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Wang, Guifang, Zuraina Dato Mansor, and Yee Choy Leong. "Fostering Digital Excellence: A Multidimensional Exploration of the Collective Effects of Technological Adaptability, Employee Competitiveness, and Employee Dynamic Capabilities on Employee Digital Performance in Chinese SMEs." International Journal of Social Science Research 12, no. 1 (2024): 116. http://dx.doi.org/10.5296/ijssr.v12i1.21774.

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This study is grounded in a specific Eastern cultural region, undertaking a multidimensional exploration. We meticulously examined the intricate interplay between employee competitive attitudes (ECA) and behaviors (ECB), employee dynamic capability (EDC), and Competitive climate (CC), converging these factors to redefine the contours of Employee Digital Performance (EDP). The survey data for this study were collected from SMEs in four Chinese provinces: Shanghai, Guizhou, Guangdong, and Anhui. The analysis was conducted utilizing CB-SEM (AMOS) to analyze the newly conceptualized framework. The

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Kozma, P., I. Kovács, and G. Benedek. "Late Maturation (Age >5 Years) of Long-Range Spatial Interactions in Humans." Perception 26, no. 1_suppl (1997): 213. http://dx.doi.org/10.1068/v970113.

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We have studied the development of long-range spatial interactions in children (age 5 – 14 years) with normal vision. In our field study involving 410 normal children we used a battery of contour-integration cards that were developed earlier to test amblyopic patients (Kovács, Polat, and Norcia, paper presented at ARVO 1996). Each card consisted of a closed chain of collinearly aligned Gabor patches (contour) and a background of randomly oriented and positioned Gabor patches (noise). Subjects were asked to identify the location of the contour, and also to trace the contour within each card. Th

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Sichacá, Martín Barajas, and Yutaro Kabata. "Projection of crosscap." International Journal of Geometric Methods in Modern Physics 16, no. 09 (2019): 1950130. http://dx.doi.org/10.1142/s0219887819501305.

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The apparent contour of a surface in [Formula: see text]-space can be investigated in terms of singularity theory. We show the precise bifurcation diagrams of the apparent contours of generic crosscap surfaces with respect to orthogonal projections. Especially, our bifurcation diagrams contain also the information of the projected images of the singular sets of crosscap surfaces.

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Bach, Joachim S. "ENVIRONMENTAL CONTOUR ESTABLISHMENT BASED ON OPENLY AVAILABLE EMODNET WAVE AND WIND DATA FOLLOWING HEFFERNAN AND TAWN METHODOLOGIES." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 37. http://dx.doi.org/10.9753/icce.v37.waves.37.

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In this paper, I present methodologies and routines for inference of environmental contours based on openly available data from the European EMODnet service, specifically wind and wave timeseries from oil platform 6200146. The conditional marginal distribution models, known as environmental contours, is established based on measured wind and wave heights, at platform 6200146 located in the North Sea. The data is provided through the openly available data platform, EMODnet. The environmental contour model is established by fitting univariate distributions to each data-series independently, wher

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Freedman, Eric G. "The Role of Diatonicism in the Abstraction and Representation of Contour and Interval Information." Music Perception 16, no. 3 (1999): 365–87. http://dx.doi.org/10.2307/40285797.

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Previous research on melody recognition indicates that listeners can recognize contour information when melodies are retained for brief intervals and can recognize interval information of melodies held in longterm memory. However, past research has failed to control for the diatonicism and familiarity of the melodies. In three experiments, the relative contributions of contour and interval information during the abstraction of novel diatonic and nondiatonic sequences are examined. Listeners recognize the melodic contours of melodies held over an extended retention interval. Additionally, liste

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Yu, Xia, Yu Long Li, and Tao Li. "The Texture Effect on the Dynamic Fracture Properties of Magnesium Alloy AZ31B." Key Engineering Materials 715 (September 2016): 74–79. http://dx.doi.org/10.4028/www.scientific.net/kem.715.74.

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In this work, Mode I dynamic fracture experiments are conducted on pre-cracked three point bending specimens by using modified split-Hopkinson pressure bar. Two sets of specimens with different initial textures are considered here: one set of the specimens are machined from a hot rolled AZ31B Mg alloy plate with a bigger grain size. The others are treated by four pass of equal channel angular pressing (ECAP) after they are cut from the initial material. They are with the finer grain size. Digital image correlation (DIC) technique is used to determine the strain contours around the crack tip an

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Mamaeva, S., I. Kononova, V. Alekseev, et al. "Determination of Blood Parameters using Scanning Electron Microscopy as a Prototype Model for Evaluating the Effectiveness of Radiation Therapy for Cervical Cancer." International Journal of Biomedicine 11, no. 1 (2021): 32–38. http://dx.doi.org/10.21103/article11(1)_oa6.

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Using the method of SEM in patients with cervical cancer (CC) during radiation therapy (RT) revealed differences in the size and morphology of nanoparticles (NP) localized on the outer surface of the erythrocyte membrane. We found that NP-V (“viruses”) objects localized on the surface of the erythrocyte membrane of CC patients before RT have more distinct contours and are smaller in comparison with the number of NP-EV (extracellular vesicles) arising during RT. Our previous study showed that NP-V objects are evenly distributed not only on the surface of erythrocytes but also in blood plasma, a

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Skakov, M. K., V. V. Baklanov, G. K. Zhanbolatova, A. Zh Miniyazov, Ye A. Kozhakhmetov, and A. V. Gradoboev. "RESEARCH OF THE STRUCTURAL-PHASE STATE OF TUNGSTEN SURFACE LAYER CROSS-SECTION AFTER CARBIDIZATION IN A BEAM-PLASMA DISCHARGE USAGE ELECTRON MICROSCOPY METHODS." NNC RK Bulletin, no. 2 (July 6, 2023): 89–96. http://dx.doi.org/10.52676/1729-7885-2023-2-89-96.

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This paper presents research results on the structural-phase state of a tungsten surface layer cross-section after carbidization in a beam-plasma discharge. Tungsten surface carbidization in a beam-plasma discharge was conducted in a plasma-beam installation (PBI). Research on the cross-section structure of the surface layer of tungsten samples after carbidization at temperatures of 1000 °C, 1200 °C, and 1400 °C was conducted using transmission and scanning electron microscopy. Based on the results of SEM studies, a multilayer EMF map and local elemental analysis were obtained, based on which

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Zhao, Rongchang, Min Wu, Xiyao Liu, Beiji Zou, and Fangfang Li. "Orientation Histogram-Based Center-Surround Interaction: An Integration Approach for Contour Detection." Neural Computation 29, no. 1 (2017): 171–93. http://dx.doi.org/10.1162/neco_a_00911.

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Contour is a critical feature for image description and object recognition in many computer vision tasks. However, detection of object contour remains a challenging problem because of disturbances from texture edges. This letter proposes a scheme to handle texture edges by implementing contour integration. The proposed scheme integrates structural segments into contours while inhibiting texture edges with the help of the orientation histogram-based center-surround interaction model. In the model, local edges within surroundings exert a modulatory effect on central contour cues based on the co-

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Abousalem, Zib ziab. "3D from 2D for Nano images using images processing methods." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 14, no. 2 (2014): 5437–47. http://dx.doi.org/10.24297/ijct.v14i2.2064.

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The scanning electron microscope (SEM) remains a main tool for semiconductor and polymer physics but TEM and AFM are increasingly used for minimum size features which called nanomaterials. In addition some physical properties such as microhardness, grain boundaries and domain structure are observed from optical and polarizing microscope which gives poor information and consequentially the error probability of discussion will be high.Thus it is natural to squeeze out every possible bit of resolution in the SEM, optical and polarizing microscopes for the materials under test. In our paper we wil

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Abousalem, Zib ziab. "3D from 2D for Nano images using images processing methods." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 14, no. 2 (2014): 5437–47. http://dx.doi.org/10.24297/ijct.v14i2.2065.

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The scanning electron microscope (SEM) remains a main tool for semiconductor and polymer physics but TEM and AFM are increasingly used for minimum size features which called nanomaterials. In addition some physical properties such as microhardness, grain boundaries and domain structure are observed from optical and polarizing microscope which gives poor information and consequentially the error probability of discussion will be high. Thus it is natural to squeeze out every possible bit of resolution in the SEM, optical and polarizing microscopes for the materials under test. In our paper we wi

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Zamorov, V., M. Zamorova, D. Krupko, N. Matvienko, Y. Leonchyk, and Y. Kvach. "Shape Analysis of Otoliths of the Round goby, Neogobius melanostomus (Gobiiformes, Gobiidae), from the Black Sea Basin." Zoodiversity 55, no. 4 (2021): 317–30. http://dx.doi.org/10.15407/zoo2021.04.317.

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The aim of this study was to assess the discriminability of the stocks of the round goby Neogobius melanostomus based on the shape of its otoliths. Recent otolith-shape-based species and stock discrimination studies were using otolith contours in sagittal plane and we are following this approach. We hypothesized the possibility of existence of several geographically separated populations of the round goby. Round gobies have been sampled from different locations of the North-Western Black Sea, otoliths were removed in course of the full biological analysis and photographed in sagittal plane. Pr

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Lehar, Steven. "Directional Harmonic Theory: A Computational Gestalt Model to Account for Illusory Contour and Vertex Formation." Perception 32, no. 4 (2003): 423–48. http://dx.doi.org/10.1068/p5011.

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Visual illusions and perceptual grouping phenomena offer an invaluable tool for probing the computational mechanism of low-level visual processing. Some illusions, like the Kanizsa figure, reveal illusory contours that form edges collinear with the inducing stimulus. This kind of illusory contour has been modeled by neural network models by way of cells equipped with elongated spatial receptive fields designed to detect and complete the collinear alignment. There are, however, other illusory groupings which are not so easy to account for in neural network terms. The Ehrenstein illusion exhibit

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Wardani, Dianita, Agus Khumaidi, Rizal Fahmi, Imah Luluk Kusminah, and Basuki Rahmat. "Coating Inspection on Sea Transportation Equipment (Ship) Using Image Processing." Indonesian Journal of Innovation Multidisipliner Research 2, no. 2 (2024): 225–33. http://dx.doi.org/10.69693/ijim.v2i2.133.

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Research in the last decade, particularly in this research there are methods and steps for completion, namely 4 process steps, including: First of all, take samples and image data from the parts of the ship that are being repaired and maintained, Then, in making the prototype tool resulting from the coating, it is assembled using several tools, mini PC is installed with a web camera, next the image for the observation further processes and processed using the edge method contours detection with the help of cany to obtain the contrast and contour from the ship's hull. For next process, uses Neu

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Shi, Y. J., S. Wang, Z. J. Jakubek, and B. Simard. "A vacuum ultraviolet laser single-photon zero kinetic energy photoelectron spectroscopic study of the 2E3/2 ground electronic state of CH3Br+." Canadian Journal of Chemistry 82, no. 6 (2004): 1077–82. http://dx.doi.org/10.1139/v04-051.

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The vacuum ultraviolet laser single-photon zero kinetic energy (ZEKE) photoelectron spectrum of the [Formula: see text]2E3/2 ground electronic state of the methyl bromide cation is reported. The spectrum is dominated by the origin band 000 of the transition [Formula: see text]2E3/2 ← [Formula: see text]1A1. In addition, the 210 band and the 311 hot band are observed. All observed bands show similar rotational contours. Simulation of the rotational contour of the origin band yields the first ionization energy of methyl bromide (85 031.2 ± 1.0 cm1) and the rotational constants of the cation in

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