Дисертації з теми "Rotational systems"
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Tran, Quan Duc. "Tricyclic Steiner Triple Systems with 1-Rotational Subsystems." Digital Commons @ East Tennessee State University, 2007. https://dc.etsu.edu/etd/2102.
Повний текст джерелаHorton, Bryan. "Rotational motion of pendula systems for wave energy extraction." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25873.
Повний текст джерелаSinclair, Andrew James. "Generalization of rotational mechanics and application to aerospace systems." Texas A&M University, 2002. http://hdl.handle.net/1969.1/2274.
Повний текст джерелаAkin, Faith W., Owen D. Murnane, Stephanie M. Byrd, and J. K. Kelly. "A Comparison of the Subjective Visual Vertical across Rotational Chair Systems and Off-Axis Rotation Protocols." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etsu-works/2466.
Повний текст джерелаClunas, Scott. "The synthesis of chiral Câ†3-symmetric systems." Thesis, University of Aberdeen, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310643.
Повний текст джерелаCowan, John D. "A billiard model for a gas of particles with rotation /." Thesis, Connect to Dissertations & Theses @ Tufts University, 2004.
Знайти повний текст джерелаAdviser: Boris Hasselblatt. Submitted to the Dept. of Mathematics. Includes bibliographical references (leaves 61-62). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Szczesny, Spencer E. 1981. "Design of compliant mechanisms for attenuation of unidirectional vibrations in rotational systems." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/27880.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (leaves 146-148).
The purpose of this research was to generate the knowledge required to design compliant mechanisms that (1) attenuate undesired small-motion angular vibrations in rotational power transmission systems and (2) preserve the desired transmission of large-motion torque/angle inputs. This thesis investigates the design of vibration attenuating compliant mechanisms that are directly integrated into the load path of rotational systems. These devices enable designers to attenuate the amplitude of undesirable vibrations while simultaneously optimizing the transmission of torque inputs. The design, modeling, fabrication and experimental validation of two Compliant Vibration Attenuator (CVA) concepts will be presented. The first device, the Small Amplitude Vibration Isolator (SAVI), is a non-linear compliant device that isolates a resonating or non-resonating rotational system from vibrations by acting as a mechanical lowpass filter. The second device, the Damping Vibration Link (DVL) utilizes compliance and damping to attenuate undesired vibrations due to resonance. A linear lumped parameter model was created in Matlab® to simulate the static and dynamic characteristics of rotational power transmission systems. This model enables one to determine the dynamic characteristics of a system for a given set of inputs, thereby making it possible to (1) understand the requirements for the CVA and (2) ascertain the effect of the CVA on the system. Finite-element simulations were conducted to verify an empirical, parametric model that describes the performance of a SAVI as a function of its stiffness parameters.
(cont.) Proof-of-concept prototypes were tested to verify performance predictions and to determine the practical issues related to implementation. The thesis concludes with a case study which demonstrates the effectiveness of a SAVI when integrated into the steering system of a light-duty pickup truck. The SAVI was shown to offer a 60% reduction in vibration amplitude by trading off 7 ms of delay in steering wheel-vehicle response.
by Spencer E. Szczesny.
S.M.
Kravchenko, Anatoliy G. "Overcoming the rotational antagonism of corn following wheat in high residue cropping systems." Diss., Connect to online resource - MSU authorized users, 2006.
Знайти повний текст джерелаTitle from PDF t.p. (viewed on June 19, 2009) Includes bibliographical references (p. 94-99). Also issued in print.
Huysamen, Kirsten Christina. "Validation of an assessment tool for mental fatigue applied to rotational shift work." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1013551.
Повний текст джерелаCakar, F. selcen. "A Study Of Precoding Schemes For Ofdm Systems." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609916/index.pdf.
Повний текст джерелаNajdecka, Anna. "Rotating dynamics of pendula systems for energy harvesting from ambient vibrations." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=201961.
Повний текст джерелаHolt, Jennifer A. "THz Systems: Spectroscopy and Simulation." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417536443.
Повний текст джерелаThompson, Roger Clifton. "A perturbation approach to control of rotational/translational maneuvers of flexible space vehicles." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45682.
Повний текст джерелаDepending on the type of maneuver specified, the equations of motion may be divided into two distinct optimal control problems. Singleâ axis rotational maneuvers (with small flexural deformations) constitute a strictly linear problem. The solution of the resulting two Q point boundary value problem is accomplished through the use of matrix exponential functions. Maneuvers which involve the translational degrees of freedom, are described by nonlinear equations. The solution method presented is a algorithm that generates successive approximations similar to quasiâ linearization. A perturbed linear optimal control problem is solved for each approximation. Examples are presented which illustrate the effectiveness of the solution methods for both types of maneuvers.
>Master of Science
Yao, Suqin. "Computer-Aided Manufacturing Planning (CAMP)of Mass Customization for Non-rotational Part Production." Link to electronic dissertation, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-1216103-153523/.
Повний текст джерелаKeywords: Computer aided manufacturing planning; Object-oriented systems analysis (OSA); Feature; manufacturing resource capability; setup planning; multi-part fixture Includes bibliographical references (p.146-154).
Langer, Franz Dieter. "Kinematic and rotational dynamics of multi-linkage systems and the control of a planar two-link system in the air /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266011224129.
Повний текст джерелаMiller, Lucas S. Kerley Monty Stephen. "Increasing land and forage utilization by Missouri cow/calf operations using silvopasture practices." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4593.
Повний текст джерелаThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed Aug. 27, 2007). Includes bibliographical references.
Williams, Kenneth A. "A rotational arm connection point design for a C-130 aircraft standardized sensor platform." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4703.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains viii, 77 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 58-59).
Spigelman, Tracy H. "COORDINATION OF SWIMBENCH FREESTYLE IN ELITE AND NON-ELITE SWIMMERS: A DYNAMICAL SYSTEM APPROACH." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_diss/691.
Повний текст джерелаButdee, Suthep. "Development of a hybrid intelligent process planning system for rotational parts." Thesis, Queensland University of Technology, 1997.
Знайти повний текст джерелаHewes, Dominic [Verfasser]. "Frequency Stability in Sustainable Power Systems: Effects of Reduced Rotational Inertia on Frequency Stability in the European Transmission System / Dominic Hewes." München : Verlag Dr. Hut, 2020. http://d-nb.info/1219469866/34.
Повний текст джерелаBobga, Benkam Benedict. "Bicyclic Mixed Triple Systems." Digital Commons @ East Tennessee State University, 2005. https://dc.etsu.edu/etd/1043.
Повний текст джерелаUrbina, Iglesias Laura Sofia. "Guidance and robust control methods for the approach phase between two orbital vehicles with coupling between translational and rotational motions." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30086/document.
Повний текст джерелаThe techniques related to formation flying and proximity operations of autonomous satellites belong to the most significant and challenging operational space technologies of the last years. In particular, they require full mastery of the close-range rendezvous and observation phases by an active satellite with a passive satellite, station or debris. The development of efficient and safe associated GNC systems relies on the knowledge of a dynamic model that achieves a good trade-off between low complexity and sufficient inclusion of the main dynamic and kinematic characteristics of this type of systems.The first part of this thesis is devoted to the development of a unified modeling of the relative coupled dynamics between a cooperative chaser satellite and a non-cooperative target satellite. Indeed, when two satellites are close to each other, they can no longer be treated as point masses because their shape and size affect the relative motion between the decentralized points, leading to a translational-attitude motions coupling. This development is addressed in a progressive way: the relative nonlinear translational motion is described under Keplerian assumptions in the target's orbital reference frame, as well as the associated linearized model. Then, the nonlinear relative attitude model is presented by means of the Euler-Rodrigues parameters. Finally, the dual quaternion formalism is used to obtain the relative translational and attitude coupled model. The modeling phase concerning the linear relative translational motion has allowed us to highlight certain coordinates transformations leading to an interesting characterization of the chaser's periodic trajectories and thus, to propose a first type of control law for the close-phase rendezvous and observation phases.All along this work, we consider a chaser satellite equipped with chemical thrusters under the classical hypothesis of impulsive thrusts. This type of dynamic systems gathering continuous dynamics and impulsive control naturally belongs to a particular class of dynamical hybrid systems. Several hybrid control laws are then proposed in order to stabilize the chaser on a periodic reference trajectory close to the target. The stability and convergence properties of these different laws are analysed and several numerical simulations show the strengths and weaknesses of each controller in terms of performance indices such as convergence time, consumption and safety constraints. In a second step, additional operational constraints (line-of-sight constraints for example) are taken into account by imposing a rectilinear (glideslope) direction to the chaser. This trajectory requires the chaser satellite to follow a straight line in any direction of the local reference frame and connecting the current location of the chaser to its final destination. Under the impulsive propulsion assumptions, the results in the literature for this type of approach have been generalized to elliptic orbits by identifying a new formulation of the problem including useful degrees of freedom, which allow minimizing the fuel consumption while controlling the humps of the trajectory outside the glideslope line by enclosing it in a user-defined approach corridor. Guidance laws are therefore synthetized via the solution of an SDP optimisation problem in the general case and via a linear programming when considering standard cases like the V-bar or R-bar approaches
Vega, Gregorio Robles. "SIMULATION OF HORSE-FENCE CONTACT AND INTERACTION AFFECTING ROTATIONAL FALLS IN THE SPORT OF EVENTING." UKnowledge, 2017. http://uknowledge.uky.edu/me_etds/98.
Повний текст джерелаHoglund, James R. "An expert system for off-line analysis of rotating equipment." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/46041.
Повний текст джерелаThe analysis of rotating equipment difficulties is currently accomplished by a specialist in rotating equipment examining the signs and symptoms of the equipment, applying his expert judgement, and determining the cause of the machine's difficulty. This thesis covers the development of an off-line expert system that can be used to emulate the expert's ability to interpret the signs and symptoms of the machine, including suggestions of possible further actions to take for repairing the problem or refining the proof for the proposed cause the difficulty. An editor has also been built which will allow an expert to keep the information used by the system current with the state of the art for rotating machinery diagnostics. This thesis documents the development of the PC-based Turbo Prolog expert shell and external knowledge-base editor. The use of the system editor is illustrated by loading current diagnostic table information into a knowledge base. Then the expert program's operation is illustrated by applying the editor-formed database in a typical session. The expert shell and knowledge base can operate as a stand-alone unit for field application. Resident experts in machinery diagnostics can build and update databases for distribution to users in the company to assure full uniform utilization of the current and most correct knowledge.
Master of Science
Sheehe, Suzanne Marie Lanier. "Heat Release Studies by pure Rotational Coherent Anti-Stokes Raman Scattering Spectroscopy in Plasma Assisted Combustion Systems excited by nanosecond Discharges." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1401377491.
Повний текст джерелаBisht, Saurabh. "Methods for Structural Health Monitoring and Damage Detection of Civil and Mechanical Systems." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33672.
Повний текст джерелаMaster of Science
Walker, Richard John. "Behaviour of nanocolloidal particles on mica : investigations using atomic force microscopy." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4633.
Повний текст джерелаBäck, David. "Neural Network Gaze Tracking using Web Camera." Thesis, Linköping University, Department of Biomedical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5579.
Повний текст джерелаGaze tracking means to detect and follow the direction in which a person looks. This can be used in for instance human-computer interaction. Most existing systems illuminate the eye with IR-light, possibly damaging the eye. The motivation of this thesis is to develop a truly non-intrusive gaze tracking system, using only a digital camera, e.g. a web camera.
The approach is to detect and track different facial features, using varying image analysis techniques. These features will serve as inputs to a neural net, which will be trained with a set of predetermined gaze tracking series. The output is coordinates on the screen.
The evaluation is done with a measure of accuracy and the result is an average angular deviation of two to four degrees, depending on the quality of the image sequence. To get better and more robust results, a higher image quality from the digital camera is needed.
Sousa, João Miguel Gomes de. "Monte Carlo studies of phase transitions and adsorption : application to n-6 Lennard-Jones, C60 and zeolite systems." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13897.
Повний текст джерелаThe solid-fluid transition properties of the n - 6 Lennard-Jones system are studied by means of extensive free energy calculations. Different values of the parameter n which regulates the steepness of the short-range repulsive interaction are investigated. Furthermore, the free energies of the n < 12 systems are calculated using the n = 12 system as a reference. The method relies on a generalization of the multiple histogram method that combines independent canonical ensemble simulations performed with different Hamiltonians and computes the free energy difference between them. The phase behavior of the fullerene C60 solid is studied by performing NPT simulations using atomistic models which treat each carbon in the molecule as a separate interaction site with additional bond charges. In particular, the transition from an orientationally frozen phase at low temperatures to one where the molecules are freely rotating at higher temperatures is studied as a function of applied pressure. The adsorption of molecular hydrogen in the zeolite NaA is investigated by means of grand-canonical Monte Carlo, in a wide range of temperatures and imposed gas pressures, and results are compared with available experimental data. A potential model is used that comprises three main interactions: van der Waals, Coulomb and induced polarization by the permanent electric field in the zeolite.
Neste trabalho, as propriedades da transição sólido-fluido do sistema de Lennard-Jones n - 6 são determinadas recorrendo a cálculos intensivos de energias livres. Vários valores do parâmetro n que regula a intensidade da interacção repulsiva do potencial são investigados. As energias livres dos sistemas com n < 12 são calculadas usando o sistema com n = 12 como referência, recorrendo a uma generalização do método dos histogramas que permite combinar simulações canónicas independentes realizadas com diferentes Hamiltonianos e calcular diferenças de energia livre entre elas. O comportamento de fases do sistema de fulerenos C60 é investigado a partir de simulações de Monte Carlo NPT e utilizando uma classe de potenciais atomísticos que consideram cada átomo da molécula como um centro de interacção distinto. Adicionalmente, podem incluir cargas parciais localizadas nas ligações interatómicas. Em particular, a transição de uma fase com ordem orientacional para uma fase rotacionalmente livre, que acontece com o aumento da temperatura, é estudada em função da pressão. A adsorção de hidrogénio no zeólito NaA é simulada numa gama alargada de temperaturas e pressões recorrendo ao algoritmo de Monte Carlo no ensemble macrocanónico. Os resultados são comparados com dados experimentais. É utilizado um potencial que incluiu termos de van der Waals, Coulomb e de polarização induzida devido à presença de um campo eléctrico permanente no zeólito.
Odendaal, Morné. "Wireless rotational process monitoring system." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1347.
Повний текст джерелаSounness, Marcus Neil. "Alternative grazing systems and pasture types for the South West of Western Australia : a bio-economic analysis." University of Western Australia. School of Agricultural and Resource Economics, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0054.
Повний текст джерелаFlynn, Angela Elizabeth. "Rotational dynamics in the solar system." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420310.
Повний текст джерелаBaroud, Charles Naim. "Transitions from three- to two-dimensional turbulence in a rotating system." Access restricted to users with UT Austin EID UMI Company copy, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3035939.
Повний текст джерелаTang, Xiaoqing. "Knowledge based inspection planning system for rotational components." Thesis, University of Manchester, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243932.
Повний текст джерелаHalde, Caroline. "Organic rotational no-till system adapted for Manitoba, Canada." ACSESS-Alliance of Crop, Soil, and Environmental Science Societies, 2013. http://hdl.handle.net/1993/23848.
Повний текст джерелаToh, Tzern Tzuin. "A gravitational torque energy harvesting system for rotational motion." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6404.
Повний текст джерелаAlmazan, Morales Alhely. "Impact of unrecognized knowledge-gatekeepers and lack of job rotation in product development process of growing organizations." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/105304.
Повний текст джерелаCataloged from PDF version of thesis. Page 87 blank.
Includes bibliographical references (pages 67-68).
In technology oriented organizations like those enclosed in the Automotive Industry, effective communication and collaboration are core competencies that, when properly managed, generate a constant flow of information and ideas that can keep activated the innovation process inside the organization. The complex architecture of the communication systems and their close relationship with the organizational structure have been previously studied to help organizations improve their communication and overcome their own unique challenges. In this thesis, I review the communication system of a Product Development Organization (PDO) along with the influence that the organizational structure has in the communication process complexity. I explain how the opportune identification of the key individuals in the communication system that serve as gatekeepers of the technological information is critical to the success of product development processes and innovation progress. Finally, a survey in an automotive PDO was conducted with the aim to understand how the communication system currently works and integrate the technological gatekeeper concept as a strategy to reinforce the transfer of technological information that increases effectiveness of execution along with innovation.
by Alhely Almazan Morales.
S.M. in Engineering and Management
Ruffino, Paulo Regis Caron. "Rotation numbers for stochastic dynamical systems." Thesis, University of Warwick, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308575.
Повний текст джерелаRosso, Roberto Silvio Ubertino. "STEP compliant CAD/CAPP/CAM system for rotational asymmetric parts." Thesis, Loughborough University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421919.
Повний текст джерелаAnderson, Jeremiah P. "State-space modeling, system identification and control of a 4th order rotational mechanical system." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FAnderson.pdf.
Повний текст джерелаThesis Advisor(s): Yun, Xiaoping. Second Reader: Julian, Alex. "December 2009." Description based on title screen as viewed on January 26, 2010. Author(s) subject terms: System identification, state-space, pole placement, full state feedback, observer. Includes bibliographical references (p. 91). Also available in print.
Typrin, Marcello. "IMTS (Intelligent Monitoring and Trending System) : a PC-based monitoring, evaluation and trending system for rotating machinery /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12302008-063435/.
Повний текст джерелаOzsuer, Erhan. "Development Of A Web-based Manufacturing Application System For Rotational Parts." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1059930/index.pdf.
Повний текст джерелаMoore, M. P. "Development of a Prolog vibration expert system for rotational machinery management." Thesis, Cranfield University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.237556.
Повний текст джерелаSabri, Abderrahmane. "Regimes oscillatoires et couplage vibro-rotatif d'un systeme dynamique a periodicite spatio-temporelle." Toulouse 3, 1986. http://www.theses.fr/1986TOU30199.
Повний текст джерелаBrooks, Michael. "Muon-spin rotation studies of correlated inorganic systems." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443599.
Повний текст джерелаPiper, Allison. "Root Length Affects Soluble Carbon and Phosphorus in a Rotational Cropping System." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/PiperA2005.pdf.
Повний текст джерелаJones, Mark. "Determining the Rotational and Orbital Velocities of Objects in the Solar System." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/585.
Повний текст джерелаKeane, James Tuttle, and James Tuttle Keane. "Tidal-Rotational Dynamics of Solar System Worlds, From the Moon to Pluto." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/625474.
Повний текст джерелаEccles, Mark Richard. "Linear Jahn-Teller systems with troughs." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311773.
Повний текст джерелаZhang, Hui. "The investigation of correlator systems utilizing object and frequency space filters." Thesis, Abertay University, 2000. https://rke.abertay.ac.uk/en/studentTheses/5afbbda6-0d84-471b-bfcd-f3717c905233.
Повний текст джерела