Results 41 to 50 of about 8,721,507 (209)

Mine-used pick wear measurement system based on shape from focus

Gong-kuang zidonghua, 2019
For problems of complicated process, low accuracy and high cost in existing pick wear measurement methods, a mine-used pick wear measurement system based on shape from focus was designed. The collected sequence images of cone on top of pick are processed
LI Ning, DING Hua, WANG Yiliang
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Scanning electron microscopy of scales in cyprinid fish, Alburnoides bipunctatus (Blotch, 1782) [PDF]

Journal of Cell and Molecular Research, 2009
The normal and lateral line cycloid scales of a cyprinid fish; Alburnoides bipunctatus (Blotch, 1782) have been subjected to SEM to study their detailed structure. It shows the general architectural pattern of a cycloid cyprinid scale.
Hamid Reza Esmaeili
doaj   +1 more source

X-ray iron line variability for the model of an orbiting flare above a black hole accretion disc [PDF]

, 1999
The broad X-ray iron line, detected in many active galactic nuclei, is likely to be produced by fluorescence from the X-ray illuminated central parts of an accretion disc close to a supermassive black hole.
Abramowicz M. A., Bao G., Bardeen J. M., Bardeen J. M., Campana S., Campana S., Chagelishvili G. D., Cunningham C. T., Cunningham C. T., Dabrowski Y., de Vries M., Fabian A. C., Galeev A. A., George I. M., Ghosh P., Iwasawa K., Karas V., Laor A., Livio M., M. Ruszkowski, Martocchia A., Matt G., Matt G., Mushotzky R. F., Pounds K. A., Rees M. J., Reynolds C. S., Reynolds C. S., Ross R. R., Rozanska A., Stella L., Tanaka Y., Young A. J., Zakharov A. F.   +33 more
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Influence of shape of quantum dots on their far-infrared absorption

, 1999
We investigate the effects of the shape of quantum dots on their far-infrared absorption in an external magnetic field by a model calculation. We focus our attention on dots with a parabolic confinement potential deviating from the common circular ...
A. Emperador, A. Lorke, A. V. Chaplik, D. Pfannkuche, D. Pfannkuche, E. Zaremba, F. M. Peeters, Ingibjörg Magnúsdóttir, L. Brey, P. A. Maksym, P. Bakshi, Q. P. Li, R. Ugajin, R. Ugajin, S. K. Yip, T. Demel, V. Gudmundsson, V. Gudmundsson, V. Gudmundsson, Vidar Gudmundsson, Z. L. Ye   +20 more
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Efficient estimation of smoothing spline with exact shape constraints

Statistical Theory and Related Fields, 2021
Smoothing spline is a popular method in non-parametric function estimation. For the analysis of data from real applications, specific shapes on the estimated function are often required to ensure the estimated function undeviating from the domain ...
Vincent Chan, Kam-Wah Tsui, Yanran Wei, Zhiyang Zhang, Xinwei Deng   +4 more
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Projecting the Kondo Effect: Theory of the Quantum Mirage

, 2001
A microscopic theory is developed for the projection (quantum mirage) of the Kondo resonance from one focus of an elliptic quantum corral to the other focus.
A. Hewson, A. Schiller, Avraham Schiller, E. J. Heller, H. C. Manoharan, J. Li, O. Újsághy, Oded Agam, P. W. Anderson, V. Madhavan   +9 more
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Applying Stories of the Environment to Business: What Business People Can Learn From the Virtues in Environmental Narratives [PDF]

, 2005
The use of narrative to communicate and convey particular points of view in society has increasingly become the focus of academic attention in recent years. In particular, MacIntyre. (1985, 1988, 1990, 1999) has paid attention to the role of narrative in
Dawson, David
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Image Quality Assessment for Performance Evaluation of Focus Measure Operators [PDF]

Mehran University Research Journal of Engineering and Technology, 2015
This paper presents the performance evaluation of eight focus measure operators namely Image CURV (Curvature), GRAE (Gradient Energy), HISE (Histogram Entropy), LAPM (Modified Laplacian), LAPV (Variance of Laplacian), LAPD (Diagonal Laplacian), LAP3 ...
Farida Memon, Mukhtiar Ali Unar, Sheeraz Memon   +2 more
doaj  

Extending the Depth of Field beyond Geometrical Imaging Limitations Using Phase Noise as a Focus Measure in Multiwavelength Digital Holography

Applied Sciences, 2018
Digital holography is a well-established technology for optical quality control in industrial applications. Two common challenges in digital holographic measurement tasks are the ambiguity at phase steps and the limited depth of focus.
Tobias Seyler, Markus Fratz, Tobias Beckmann, Annelie Schiller, Alexander Bertz, Daniel Carl   +5 more
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Cell shape analysis of random tessellations based on Minkowski tensors

, 2016
To which degree are shape indices of individual cells of a tessellation characteristic for the stochastic process that generates them? Within the context of stochastic geometry and the physics of disordered materials, this corresponds to the question of ...
A.M. Kraynik, A.M. Kraynik, A.M. Kraynik, B. Schuetrumpf, B. Schuetrumpf, B.J. Alder, C. Gay, C. Redenbach, C. Scholz, C. Scholz, C. Zong, D. Göring, D. Hug, D. Hug, D. Ruelle, D. Stoyan, D.J. Daley, E. Pineda, E.A. Lazar, F. Baccelli, F. Baccelli, F. Lavancier, F.M. Schaller, F.M. Schaller, F.M. Schaller, F.M. Schaller, F.M. Schaller, G. Last, G. Last, G. Zhang, H. Hansen-Goos, H. Mantz, J. Becker, J. Mecke, J. Møller, J. Møller, J. Møller, J. Talbot, J. Teichmann, J.B. Hough, K. Mecke, M. Kac, M. Kerscher, M.A. Klatt, M.E. Evans, M.L. Huber, O. Macchi, P. McCullagh, P.J. Steinhardt, R. Cowan, R. Miles, R. Schneider, S. Colombi, S. Hilgenfeldt, S. Mase, S. Torquato, S. Torquato, S. Zuyev, S.C. Kapfer, S.N. Chiu, T. Aste, T. Aste, T. Schreiber, T. Schreiber, T.C. Hales, V. Baumstark, V. Baumstark, V. Senthil Kumar, W. Mickel, W. Nagel, W.W. Wood, X.X. Nguyen   +71 more
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