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Theory of Dynamic Interactions: Laws of Motion  [PDF]
Gabriel Barceló
World Journal of Mechanics (WJM) , 2013, DOI: 10.4236/wjm.2013.39036
Abstract:

The aim of this paper is to present the laws of motion that can be derived from the Theory of Dynamic Interactions, and of its multiple and significant scientific applications. Based on a new interpretation on the behaviour of rigid bodies exposed to simultaneous non-coaxial rotations, we have developed a hypothesis regarding the dynamic behaviour of these bodies. From these hypotheses and following the observation of the behaviour of free bodies in space, we have developed axioms and a mathematical-physical model. Consequently, we have deduced a movement equation, coherent with the hypotheses and the observed behaviour. This dynamic model, in the case of rigid solid bodies or systems, allows putting forward a series of laws and corollaries in relation to its dynamic performance. These laws have subsequently been confirmed by experimental tests. The whole of this research constitutes a rational and conceptual structure which we have named Theory of Dynamic Interactions (TID). This logical deductive system allows predicting the behaviour of solid bodies subject to multiple accelerations by rotation. In the conclusions, we underline that coherence has been obtained between the principles and axioms, the developed physical-mathematical model, the obtained movement equation, the deduced laws and the realised experimental tests.  

Dynamic Density Functional Theory with hydrodynamic interactions and fluctuations  [PDF]
A. Donev,E. Vanden-Eijnden
Statistics , 2014, DOI: 10.1063/1.4883520
Abstract: We derive a closed equation for the empirical concentration of colloidal particles in the presence of both hydrodynamic and direct interactions. The ensemble average of our functional Langevin equation reproduces known deterministic Dynamic Density Functional Theory (DDFT) [Rex and L\"owen, Phys. Rev. Lett., 101(14):148302, 2008], and, at the same time, it also describes the microscopic fluctuations around the mean behavior. We suggest separating the ideal (non-interacting) contribution from additional corrections due to pairwise interactions. We find that, for an incompressible fluid and in the absence of direct interactions, the mean concentration follows Fick's law just as for uncorrelated walkers. At the same time, the nature of the stochastic terms in fluctuating DDFT is shown to be distinctly different for hydrodynamically-correlated and uncorrelated walkers. This leads to striking differences in the behavior of the fluctuations around Fick's law, even in the absence of pairwise interactions. We connect our own prior work [A. Donev, T. G. Fai, E. Vanden-Eijnden, J. Stat. Mech., P04004, 2014] on fluctuating hydrodynamics of diffusion in liquids to the DDFT literature, and demonstrate that the fluid cannot easily be eliminated from consideration if one wants to describe the collective diffusion in colloidal suspensions.
A measurement of Omega from the North American test flight of BOOMERANG  [PDF]
A. Melchiorri,P. A. R. Ade,P. de Bernardis,J. J. Bock,J. Borrill,A. Boscaleri,B. P. Crill,G. De Troia,P. Farese,P. G. Ferreira,K. Ganga,G. de Gasperis,M. Giacometti,V. V. Hristov,A. H. Jaffe,A. E. Lange,S. Masi,P. D. Mauskopf,L. Miglio,C. B. Netterfield,E. Pascale,F. Piacentini,G. Romeo,J. E. Ruhl,N. Vittorio
Physics , 1999, DOI: 10.1086/312744
Abstract: We use the angular power spectrum of the Cosmic Microwave Background, measured during the North American test flight of the BOOMERANG experiment, to constrain the geometry of the universe. Within the class of Cold Dark Matter models, we find that the overall fractional energy density of the universe, Omega, is constrained to be 0.85 < Omega < 1.25 at the 68% confidence level. Combined with the COBE measurement and the high redshift supernovae data we obtain new constraints on the fractional matter density and the cosmological constant.
Network theory approach for data evaluation in the dynamic force spectroscopy of biomolecular interactions  [PDF]
Jelena Zivkovi?,Marija Mitrovi?,Luuk Janssen,Hans A. Heus,Bosiljka Tadi?,Sylvia Speller
Quantitative Biology , 2009, DOI: 10.1209/0295-5075/89/68004
Abstract: Investigations of molecular bonds between single molecules and molecular complexes by the dynamic force spectroscopy are subject to large fluctuations at nanoscale and possible other aspecific binding, which mask the experimental output. Big efforts are devoted to develop methods for effective selection of the relevant experimental data, before taking the quantitative analysis of bond parameters. Here we present a methodology which is based on the application of graph theory. The force-distance curves corresponding to repeated pulling events are mapped onto their correlation network (mathematical graph). On these graphs the groups of similar curves appear as topological modules, which are identified using the spectral analysis of graphs. We demonstrate the approach by analyzing a large ensemble of the force-distance curves measured on: ssDNA-ssDNA, peptide-RNA (system from HIV1), and peptide-Au surface. Within our data sets the methodology systematically separates subgroups of curves which are related to different intermolecular interactions and to spatial arrangements in which the molecules are brought together and/or pulling speeds. This demonstrates the sensitivity of the method to the spatial degrees of freedom, suggesting potential applications in the case of large molecular complexes and situations with multiple binding sites.
Measurement of a Peak in the Cosmic Microwave Background Power Spectrum from the North American test flight of BOOMERANG  [PDF]
P. D. Mauskopf,P. A. R. Ade,P. de Bernardis,J. J. Bock,J. Borrill,A. Boscaleri,B. P. Crill,G. DeGasperis,G. De Troia,P. Farese,P. G. Ferreira,K. Ganga,M. Giacometti,S. Hanany,V. V. Hristov,A. Iacoangeli,A. H. Jaffe,A. E. Lange,A. T. Lee,S. Masi,A. Melchiorri,F. Melchiorri,L. Miglio,T. Montroy,C. B. Netterfield,E. Pascale,F. Piacentini,P. L. Richards,G. Romeo,J. E. Ruhl,E. Scannapieco,F. Scaramuzzi,R. Stompor,N. Vittorio
Physics , 1999, DOI: 10.1086/312743
Abstract: We describe a measurement of the angular power spectrum of anisotropies in the Cosmic Microwave Background (CMB) from 0.3 degrees to ~10 degrees from the North American test flight of the BOOMERANG experiment. BOOMERANG is a balloon-borne telescope with a bolometric receiver designed to map CMB anisotropies on a Long Duration Balloon flight. During a 6-hour test flight of a prototype system in 1997, we mapped > 200 square degrees at high galactic latitudes in two bands centered at 90 and 150 GHz with a resolution of 26 and 16.6 arcmin FWHM respectively. Analysis of the maps gives a power spectrum with a peak at angular scales of ~1 degree with an amplitude ~70 uK.
Measuring CMB Polarization with BOOMERANG  [PDF]
T. Montroy,P. A. R. Ade,A. Balbi,J. J. Bock,J. R. Bond,J. Borrill,A. Boscaleri,P. Cabella,C. R. Contaldi,B. P. Crill,P. de Bernardis,G. De Gasperis,A. de Oliveira-Costa,G. De Troia,G. di Stefano,K. Ganga,E. Hivon,V. V. Hristov,A. Iacoangeli,A. H. Jaffe,T. S. Kisner,W. C. Jones,A. E. Lange,S. Masi,P. D. Mauskopf,C. MacTavish,A. Melchiorri,F. Nati,P. Natoli,C. B. Netterfield,E. Pascale,F. Piacentini,D. Pogosyan,G. Polenta,S. Prunet,S. Ricciardi,G. Romeo,J. E. Ruhl,E. Torbet,M. Tegmark,N. Vittorio
Physics , 2003, DOI: 10.1016/j.newar.2003.09.011
Abstract: BOOMERANG is a balloon-borne telescope designed for long duration (LDB) flights around Antarctica. The second LDB Flight of BOOMERANG took place in January 2003. The primary goal of this flight was to measure the polarization of the CMB. The receiver uses polarization sensitive bolometers at 145 GHz. Polarizing grids provide polarization sensitivity at 245 and 345 GHz. We describe the BOOMERANG telescope noting changes made for 2003 LDB flight, and discuss some of the issues involved in the measurement of polarization with bolometers. Lastly, we report on the 2003 flight and provide an estimate of the expected results.
Correction of measurements results on dynamic modes of flight Коррекция результатов измерений на динамических режимах полета КОРЕГУВАННЯ РЕЗУЛЬТАТ В ВИМ РЮВАНЬ В ДИНАМ ЧНИХ РЕЖИМАХ ПОЛЬОТУ
О.М. Папченко
Proceedings of National Aviation University , 2005,
Abstract: Questions of increase accuracy of measurements are considered at registration of parameters on dynamic modes of flight any flying device on the basis of the analysis and research dynamic errors of gauges for its account during the any moments of time. Рассмотрены вопросы повышения точности измерений при регистрации параметров на динамических режимах полета летательного аппарата на основе анализа и исследования динамической погрешности датчиков для учета ее в произвольные моменты времени. Розглянуто питання п двищення точност вим рювань п д час ре страц параметр в у динам чних режимах польоту л тального апарату на п дстав анал зу та досл дження динам чно похибки датчик в для обл ку у дов льн моменти часу.
The Pendulum of Dynamic Interactions  [PDF]
Julio Cano Lacunza
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.39146
Abstract: In this paper, we present evidence to show that the dynamics of rigid solid bodies is not a closed discipline, particularly in the field of rotational dynamics. From the observation of bodies with intrinsic rotation in our universe, our research group proposes new dynamic hypotheses that explain the behaviour observed when these bodies are subject to new simultaneous non-coaxial rotations. A new gyroscopic conical pendulum was designed for this purpose. Experimental tests initially conducted with this new gyroscopic conical pendulum were repeated for their recording on video, which accompanied this paper for better understanding thereof. These experimental tests positively confirm the new Theory of Dynamic Interactions, and its dynamic laws, which help us to understand the behaviour of this pendulum and, in general, that of the baryonic mass when it is subject to non-coaxial simultaneous rotations. It thus provides a better understanding of the nature and the dynamic behaviour of our universe.
Application of H∞ theory to a 6 DOF flight simulator motion base
Becerra-Vargas, Mauricio;Morgado Belo, Eduardo;
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2012, DOI: 10.1590/S1678-58782012000200011
Abstract: the purpose of this study is to apply inverse dynamics control for a six degree of freedom flight simulator motion system. imperfect compensation of the inverse dynamic control is intentionally introduced in order to simplify the implementation of this approach. the control strategy is applied in the outer loop of the inverse dynamic control to counteract the effects of imperfect compensation. the control strategy is designed using h∞ theory. forward and inverse kinematics and full dynamic model of a six degrees of freedom motion base driven by electromechanical actuators are briefly presented. describing function, acceleration step response and some maneuvers computed from the washout filter were used to evaluate the performance of the controllers.
Dynamic QoS Evaluation of Multimedia Contents in Wireless Networks by “Double-Boomerang” Watermarking  [PDF]
Francesco Benedetto,Alberto Curcio,Gaetano Giunta
Future Internet , 2010, DOI: 10.3390/fi2010060
Abstract: This work presents a cooperative network-aware processing of multimedia content for dynamic quality of service management in wireless IP networks. Our technique can be also used for quality control in UMTS environments, exploiting the tracing watermarking recently introduced in literature. In this work, we use the transmitted video-sequences to monitor the QoS in a videoconference call. The video-sequence of every active user travels on the communication link, one time as video (transparent mode), one time as watermark (hidden mode) describing a boomerang trajectory. The results obtained through our simulation trials confirm the validity of such approach. In fact, the advantages of distributing the management process are (i) an easier and more precise localization of the cause of QoS problems, (ii) a better knowledge of local situations, (iii) a lower complexity for a single QoS agent and (iv) an increase in possible actions.
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