Results 71 to 80 of about 507,465 (200)

Nonlinear Dynamical Friction in a Gaseous Medium

, 2009
Using high-resolution, two-dimensional hydrodynamic simulations, we investigate nonlinear gravitational responses of gas to, and the resulting drag force on, a very massive perturber M_p moving at velocity V_p through a uniform gaseous medium of ...
Bondi, Bondi, Butler, Conroy, Dokuchaev, Edgar, Escala, Escala, Foglizzo, Foglizzo, Fryxell, Furlanetto, Gradshteyn, Heberle, Hunt, Hunt, Hyosun Kim, Just, Kim, Kim, Kim, Kim, Koide, Liepmann, Matsuda, Matsuda, Milosavljević, Narayan, Ostriker, Ruffert, Ruffert, Ruffert, Schreier, Shankar, Shima, Sánchez-Salcedo, van Dyke, Woong-Tae Kim   +37 more
core   +1 more source

SearchSense: Haptic Directional Guidance for Emergency Response

IEEE Access
Urban Search and Rescue (USAR) teams lack portable, fast, and intuitive tools for locating victims in low-visibility disaster sites. Existing Direction-Finding (DF) systems are often too bulky, slow, or impractical because they require victims to have ...
Andrew L. Huard, Avinash Ajit Nargund, Alejandro Aponte, Megumi Ondo, Misha Sra   +4 more
doaj   +1 more source

The Euclidean Spectrum of Kaplan's Lattice Chiral Fermions

, 1992
We consider the (2n+1)-dimensional euclidean Dirac operator with a mass term that looks like a domain wall, recently proposed by Kaplan to describe chiral fermions in $2n$ dimensions.
Callan, Goldstone, Golterman, Golterman, Jansen, Kaplan, Karsten, Nielsen, Smit, Yigal Shamir   +9 more
core   +1 more source

Reanalysis on Performance of Microwave Phase Detector for Multisignals

Sensors
Microwave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers.
Jing Deng, Hongxun Wang, Xin Xiang
doaj   +1 more source

Nonlinear Measures for Characterizing Rough Surface Morphologies

, 1999
We develop a new approach to characterizing the morphology of rough surfaces based on the analysis of the scaling properties of contour loops, i.e. loops of constant height. Given a height profile of the surface we perform independent measurements of the
B. B. Mandelbrot, B. Nienhuis, C. Dasgupta, C. Zeng, C.-S. Chin, Christopher L. Henley, D. Liu, D. Stauffer, David G. Salinas, E. A. Eklund, E. Bouchaud, E. Bouchaud, F. Family, G. Huber, G. Palasantzas, G. Palasantzas, G. Stolovitzky, G. Wagner, H. J. Catrakis, H. Saleur, H. van Beijeren, H.-N. Yang, J. D. Pelletier, J. Kondev, J. Kondev, J. Kondev, J. Krug, J. Krug, J. M. Gómez-Rodŕiguez, J. M. Kim, J. P. Grotzinger, J. Schmittbuhl, Jané Kondev, L. Vásquez, L.-H. Tang, M. Aizenman, M. Avellaneda, M. B. Isichenko, M. B. Isichenko, M. Lässig, M. P. M. den Nijs, M. Plischke, M. S. Spector, M. T. Batchelor, M. T. Batchelor, O. Cardosa, P. Constantin, P. Meakin, R. Ramshankar, S. A. Trugman, S. Das Sarma, S. Das Sarma, S. J. Chey, S. Lovejoy, T. Ala-Nissila, T. Halpin-Healy, T. Holten, W. B. Wright, W. M. Tong, X. Chen, Z. Csahok, Z. Olami, Z. Rácz   +62 more
core   +1 more source

Networks of gravitational wave detectors and three figures of merit

, 2011
This paper develops a general framework for studying the effectiveness of networks of interferometric gravitational wave detectors and then uses it to show that enlarging the existing LIGO-VIRGO network with one or more planned or proposed detectors in ...
Abadie J, Abbott B P, Abbott B P, Acernese F, Bernard F Schutz, Bulik T, Fairhurst S, Fairhurst S, Hayama K, Klimenko S, Klimenko S Vedovato G Drago M Mazzolo G Mitselmakher G Pankow C Prodi G Re V Salemi F Yakushin I, Leonor I, Mercer R A, Mohanty S D, Nissanke S, Principe M, Sathyaprakash B S, Schutz B F, Searle A C, Thorne K S, Weiss R, Wen L, Wen L   +22 more
core   +4 more sources

Efficient Methods for Automated Multi-Issue Negotiation: Negotiating over a Two-Part Tariff

, 2006
In this article, we consider the novel approach of a seller and customer negotiating bilaterally about a two-part tariff, using autonomous software agents.
Gerding, E. H., La Poutre, J. A., Somefun, D. J. A.   +2 more
core  

Understanding Terrorist Organizations with a Dynamic Model

, 2009
Terrorist organizations change over time because of processes such as recruitment and training as well as counter-terrorism (CT) measures, but the effects of these processes are typically studied qualitatively and in separation from each other. Seeking a
A. Gutfraind, A.J. Jongman, B. Ganor, B. Ganor, B. Hoffman, B. Hoffman, C.C. Harmon, C.H. Anderton, D. Stauffer, E.P. MacKerrow, F. Udwadia, G. Feichtinger, J. Horgan, J.B. Wolf, J.D. Farley, L. Wright, M. Crenshaw, M. Sageman, M. Tsvetovat, R. Aris, R. Wintrobe, S.P. Ellner, T. Chamberlain, T. Sandler, T. Sandler, W. Laqueur   +25 more
core   +1 more source

Principal Boundary on Riemannian Manifolds

, 2019
We consider the classification problem and focus on nonlinear methods for classification on manifolds. For multivariate datasets lying on an embedded nonlinear Riemannian manifold within the higher-dimensional ambient space, we aim to acquire a ...
Yao, Zhigang, Zhang, Zhenyue
core   +2 more sources

Robust Bluetooth AoA Estimation for Indoor Localization Using Particle Filter Fusion

Applied Sciences
With the growing demand for positioning services, angle-of-arrival (AoA) estimation or direction-finding (DF) has been widely investigated for applications in fifth-generation (5G) technologies.
Kaiyue Qiu, Ruizhi Chen, Guangyi Guo, Yuan Wu, Wei Li   +4 more
doaj   +1 more source