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Articles 1 - 30 of 61
Full-Text Articles in Engineering
Image Segmentation Using An Annealed Hopfield Neural Network, Yungsik Kim, Sarah A. Rajala
Image Segmentation Using An Annealed Hopfield Neural Network, Yungsik Kim, Sarah A. Rajala
Sarah A. Rajala
Good image segmentation can be achieved by finding the optimum solution to an appropriate energy function. A Hopfield neural network has been shown to solve complex optimization problems fast, but it only guarantees convergence to a local minimum of the optimization function. Alternatively, mean field annealing has been shown to reach the global or the nearly global optimum solution when solving optimization problems. Furthermore, it has been shown that there is a relationship between a Hopfield neural network and mean field annealing. In this paper, we combine the advantages of the Hopfield neural network and the mean field annealing algorithm …
Possible Applications Of Neural Nets To Power System Operation And Control, P. K. Kalra, Alok Srivastava, D. K. Chaturvedi
Possible Applications Of Neural Nets To Power System Operation And Control, P. K. Kalra, Alok Srivastava, D. K. Chaturvedi
D. K. Chaturvedi Dr.
Problems related to power system operation and control are complex and time consuming because of the non-linearities involved in their formulation and solution. Fast solutions to these problems can be obtained only through parallel processing. Neural nets provide massive parallel processing facilities and may also be used efficiently to model systems with non-linearities. The capabilities of neural nets can, therefore, be well utilized in modelling and processing problems related to power systems. In order to reduce the burden on computers, algorithms involving optimization and complex equations can be converted to heuristics. These heuristics can then be represented in terms of …
70. Obituary, Herman F. Mark, Otto Vogl
Royal Institute Of Technology: Department Of Polymer Technology, Otto Vogl, Ann Christine Albertsson
Royal Institute Of Technology: Department Of Polymer Technology, Otto Vogl, Ann Christine Albertsson
Otto Vogl
No abstract provided.
082313333253 Jual Minyak Lintah Papua Asli Di Bima By Viagra - Usa, Klinik 04
082313333253 Jual Minyak Lintah Papua Asli Di Bima By Viagra - Usa, Klinik 04
Distributor Resmi Minyak Lintah Papua Asli Original
Segmentation-Based Texture Coding Algorithm For Packet Video: A Goal-Oriented Approach, Day-Fann Shen, Sarah A. Rajala
Segmentation-Based Texture Coding Algorithm For Packet Video: A Goal-Oriented Approach, Day-Fann Shen, Sarah A. Rajala
Sarah A. Rajala
The design of an image coder for packet-switched transmission is formulated as a minimization problem. A general set of design requirements is derived and used to design a segmentation-based texture coding algorithm. The segmentation process is performed on a pyramid data structure and uses the just noticeable difference (JND) of the human visual system as the merge criterion. To reduce the bit-rate while maintaining image quality, each region is classified as either texture or non-texture. Texture regions are approximated by a one-dimensional polynomial, while the non-texture regions are approximated by the region's mean intensity. A set of parameters for bit-rate/image …
Tracking Of Unresolved Targets In Infrared Imagery Using A Projection-Based Method, Jae-Ho Choi, Sarah A. Rajala
Tracking Of Unresolved Targets In Infrared Imagery Using A Projection-Based Method, Jae-Ho Choi, Sarah A. Rajala
Sarah A. Rajala
The conventional two-dimensional Hough transform technique is generalized into a projection- based transform method by using the modified Radon transform for estimating a three- dimensional target tracks embedded in a time-sequential set of image frames. The target of concern are dim, unresolved point targets moving along straight paths across a same field of view. Since the target signal-to-noise is low and the spatial extend of the target is less than a pixel, one must rely on integration over a target track which span over many image frames. Instead of processing the entire 3-D data set, a set of projections are …
Segmentation-Based Motion Estimation And Residual Coding For Packet Video: A Goal-Oriented Approach, Day-Fann Shen, Sarah A. Rajala
Segmentation-Based Motion Estimation And Residual Coding For Packet Video: A Goal-Oriented Approach, Day-Fann Shen, Sarah A. Rajala
Sarah A. Rajala
Image transmission via packet switched networks has a significant impact on encoded image data. To develop an efficient image codec for packet video, the goals of image coding are redefined and formulated as an optimization problem. Guided by these goals, a set of design requirements and a new segmentation based coding technique is developed. This approach features region based motion estimation, region based residual coding and region based single frame coding. The performance of the proposed algorithm is evaluated and a packet loss compensation algorithm is presented. As a result, good image quality at very low-bit rates can be achieved.
Polymer Science In Finland, Otto Vogl, Johan J. Lindberg, Franciska Sundholm
Polymer Science In Finland, Otto Vogl, Johan J. Lindberg, Franciska Sundholm
Otto Vogl
No abstract provided.
71. Otto Vogl, David A. Tirrell
Written Contributions While At The Australian Road Research Board 1976-1992, Marcus R. Wigan
Written Contributions While At The Australian Road Research Board 1976-1992, Marcus R. Wigan
Marcus R Wigan
Iupac Conference On “New Polymers”, Kyoto, Japan, Otto Vogl, Yoshiki Chujo
Iupac Conference On “New Polymers”, Kyoto, Japan, Otto Vogl, Yoshiki Chujo
Otto Vogl
No abstract provided.
Toko Jual Obat Erogan Asli Pembesar Penis Permanen No 1 Di Jambi 082313333253, Toko Aje Shop
Toko Jual Obat Erogan Asli Pembesar Penis Permanen No 1 Di Jambi 082313333253, Toko Aje Shop
toko aje shop
Second Pacific Polymer Conference In Otsu, Shiga, Japan, Otto Vogl, Tatsuki Kitayama, Koichi Hatada
Second Pacific Polymer Conference In Otsu, Shiga, Japan, Otto Vogl, Tatsuki Kitayama, Koichi Hatada
Otto Vogl
No abstract provided.
Visual Sensitivity To Color-Varying Stimuli, Sarah A. Rajala, H. Joel Trussell, B. Krishnakumar
Visual Sensitivity To Color-Varying Stimuli, Sarah A. Rajala, H. Joel Trussell, B. Krishnakumar
Sarah A. Rajala
We present the results of a study of the sensitivity of the human visual system (HVS) to spatially varying color stimuli. Sinusoidal grating patterns of different spatial frequencies were presented to six observers and the contrast required to just distinguish the pattern from the surrounding uniform field was determined. Tables and curves of contrast (measured in ΔELab) as a function of frequency were generated at different values of; the orientation (horizontal, vertical and diagonal) of the pattern, the average luminance, the x and y chromaticity co-ordinates, and the direction of the variation of the stimulus in color space (luminance, red-green, …
The 33rd Iupac Congress, Budapest, August 17-22, 1991, Otto Vogl, Koichi Hatada
The 33rd Iupac Congress, Budapest, August 17-22, 1991, Otto Vogl, Koichi Hatada
Otto Vogl
No abstract provided.
Work-Function Anisotropies As An Origin Of Long-Range Surface Forces, Nancy Burnham, R Colton, H Pollock
Work-Function Anisotropies As An Origin Of Long-Range Surface Forces, Nancy Burnham, R Colton, H Pollock
Nancy A. Burnham
Unusual effects noticed in previous force microscopy data are explained by a model based on work-function anisotropies and their associated patch charges. Measurable forces between macroscopic bodies can be due to the interaction of patch charges, with important consequences in the fields of surface forces, contact mechanics, adhesion, Schottky barriers, and the surface properties of insulators.
Tenth International Symposium On Cationic Polymerization And Related Processes, Otto Vogl, Gyorgy Deak
Tenth International Symposium On Cationic Polymerization And Related Processes, Otto Vogl, Gyorgy Deak
Otto Vogl
No abstract provided.
Discourse-Level Analysis Of Abstracts For Information Retrieval: A Probabilistic Approach, Robert N. Oddy
Discourse-Level Analysis Of Abstracts For Information Retrieval: A Probabilistic Approach, Robert N. Oddy
Robert Oddy
The objective of this research is to contribute to our knowledge of how people seek information, and how computer systems can be designed to help in this process. Most information retrieval research since the field emerged in the 1950's has reduced these questions to that of trying to determine how documents relevant to a user's query might be selected from a large collection of texts---a question that has proved remarkably difficult to answer. The present work takes the stance that this particular reduction increasingly limits progress towards the objective stated above. It is directed instead towards the development of a …
The Fokker–Planck Closure For Turbulent Molecular Mixing: Passive Scalars, Rodney O. Fox
The Fokker–Planck Closure For Turbulent Molecular Mixing: Passive Scalars, Rodney O. Fox
Rodney O. Fox
A turbulent-molecular-mixing closure for passive scalar mixing is derived based on the theory of diffusion in layerlike lamellar structures. The closure is formulated in terms of the Fokker- Planck (FP) equation (or an equivalent stochastic differential equation), and is to be employed in conjunction with the probability density function (pdf) balance equation appearing in the pdf methods for modeling turbulent reactive flows. Like the mapping closure, the FP closure predicts a limiting Gaussian pdf for the passive scalar concentration in isotropic turbulence. In addition, the FP closure models the joint pdf of the scalar concentration and the scalar gradient and …
(100) Surface Segregation In Cu-Ni Alloys, H.Y. Wang, R. Najafabadi, D. J. Srolovitz, Richard Alan Lesar
(100) Surface Segregation In Cu-Ni Alloys, H.Y. Wang, R. Najafabadi, D. J. Srolovitz, Richard Alan Lesar
Richard Alan Lesar
Atomistic simulations of segregation to the (100) free surface in Ni-Cu alloys have been performed for a wide range of temperatures and compositions within the solid-solution region of the alloy phase diagram. In addition to the surface-segregation profile, surface structures, free energies, enthalpies, and entropies were determined. These simulations were performed within the framework of the free-energy simulation method, in which an approximate free-energy functional is minimized with respect to atomic coordinates and atomic-site occupation. For all alloy bulk compositions (0.05≤C≤0.95) and temperatures (400≤T≤1000 K) examined, Cu segregates strongly to the surface and Ni segregates to the planes just below …
Spatial Variation Of A Short-Lived Intermediate Chemical Species In A Couette Reactor, R. Dennis Vigil, Q. Ouyang, Harry L. Swinney
Spatial Variation Of A Short-Lived Intermediate Chemical Species In A Couette Reactor, R. Dennis Vigil, Q. Ouyang, Harry L. Swinney
R. Dennis Vigil
We have conducted experiments and simulations of the spatial variation of a short-lived intermediate species (triiodide) in the autocatalytic oxidation of arsenite by iodate in a reactor that is essentially one dimensional-the Couette reactor. (This reactor consists of two concentric cylinders with the inner one rotating and the outer one at rest; reagents are continuously fed and removed at each end in such a way that there is no net axial flux and there are opposing arsenite and iodate gradients.) The predictions ?f a one-dim~ns~onal . reaction-diffusion model which has no adjustable parameters, are In good qualItative (and, In some …
Pinski Et Al. Reply, F. J. Pinski, B. Ginatempo, Duane D. Johnson, J. B. Staunton, G. M. Stocks, B. L. Gyorffy
Pinski Et Al. Reply, F. J. Pinski, B. Ginatempo, Duane D. Johnson, J. B. Staunton, G. M. Stocks, B. L. Gyorffy
Duane D. Johnson
With our calculations [I], we uncovered the electronic mechanism responsible for inducing atomic short-range order (SRO) in the disordered solid solution of NiPt as it is cooled. Usually, but not always, SRO, whether derived theoretically or measured experimentally, indicates the nature of the long-rangeordered (LRO) state that will stabilize at low temperature. Our calculation of the atomic SRO, while agreeing with experiments [2], neglected the relativistic effects in the electronic structure. Lu, Wei, and Zunger (LWZ) [3,4], on the other hand, have calculated the L lo-ordered alloy formation energy and find that only when relativistic effects are included is the …
Http://Junivivecream.Fr/Trevulan-Muscle-Formula/, Praltrix Enhancement/
Http://Junivivecream.Fr/Trevulan-Muscle-Formula/, Praltrix Enhancement/
Praltrix enhancement/
Vsvsvsv435teret.Png, Davis Crunal
Vsvsvsv435teret.Png, Davis Crunal
Davis Crunal
Svsvsvvvv.Jpg, Davis Crunal
Svsvsvvvv.Jpg, Davis Crunal
Davis Crunal
Gain Enhancement Of Dielectric Resonator Loaded Waveguide Antennas With Dielectric Overlays, M. Hakkak, Hossein Ameri Mahabadi
Gain Enhancement Of Dielectric Resonator Loaded Waveguide Antennas With Dielectric Overlays, M. Hakkak, Hossein Ameri Mahabadi
Hossein Ameri Mahabadi
The gain characteristics of a dielectric resonator loaded coaxial probe fed circular waveguide antenna (DRLWA) with overlaying parasitic discs have been investigated experimentally. Results indicate that, when properly spaced, the overlays can enhance the gain by more than 6 dB.
Liquid Immersion Cooling Of A Longitudinal Array Of Discrete Heat Sources In Protruding Substrates: Ii—Forced Convection Boiling, Theodore J. Heindel, S. Ramadhyani, F. P. Incropera
Liquid Immersion Cooling Of A Longitudinal Array Of Discrete Heat Sources In Protruding Substrates: Ii—Forced Convection Boiling, Theodore J. Heindel, S. Ramadhyani, F. P. Incropera
Theodore J. Heindel
Forced convection boiling experiments have been performed for an in-line 1 x 10 array of discrete heat sources, flush mounted to protruding substrates located on the bottom wall of a horizontal flow channel. FC-72, a dielectric fluorocarbon liquid, was used as the heat transfer fluid, and the experiments covered a range of flow velocities, degrees of fluid subcooling, and channel heights. The maximum heater-to-heater surface temperature variation was less than 2.5°C and was insensitive to channel height under conditions of fully developed nucleate boiling. Although the fluid velocity influenced the heat flux for partially developed nucleate boiling, its influence was …
Liquid Immersion Cooling Of A Longitudinal Array Of Discrete Heat Sources In Protruding Substrates: I—Single-Phase Convection, Theodore J. Heindel, F. P. Incropera, S. Ramadhyani
Liquid Immersion Cooling Of A Longitudinal Array Of Discrete Heat Sources In Protruding Substrates: I—Single-Phase Convection, Theodore J. Heindel, F. P. Incropera, S. Ramadhyani
Theodore J. Heindel
Experiments have been performed using water and FC-77 to investigate heat transfer from an in-line 1 x 10 array of discrete heat sources, flush mounted to protruding substrates located on the bottom wall of a horizontal flow channel. The data encompass flow regimes ranging from mixed convection to laminar and turbulent forced convection. Buoyancy-induced secondary flows enhanced heat transfer at downstream heater locations and provided heat transfer coefficients comparable to upstream values. Upstream heating extended enhancement on the downstream heaters to larger Reynolds numbers. Higher Prandtl number fluids also extended heat transfer enhancement to larger Reynolds numbers, while a reduction …
Obat Aborsi Samarinda 082244058007 Obat Penggugur Kandungan, Arin Najwa, Obat Aborsi Samarinda