Gotowe bibliografie tematyczne / High speed flight

Spis treści

Artykuły w czasopismach
Rozprawy doktorskie
Książki
Części książek
Streszczenia konferencji
Raporty organizacyjne

Gotowa bibliografia na temat „High speed flight”

Autor: Grafiati

Data publikacji: 6 września 2023

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „High speed flight”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "High speed flight"

Ashford, David. "High speed commercial flight". Space Policy 6, nr 1 (luty 1990): 75. http://dx.doi.org/10.1016/0265-9646(90)90010-u.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Schiffner, Ingo, i Mandyam V. Srinivasan. "Budgerigar flight in a varying environment: flight at distinct speeds?" Biology Letters 12, nr 6 (czerwiec 2016): 20160221. http://dx.doi.org/10.1098/rsbl.2016.0221.

Pełny tekst źródła

Streszczenie:

How do flying birds respond to changing environments? The behaviour of budgerigars, Melopsittacus undulatus , was filmed as they flew through a tapered tunnel. Unlike flying insects—which vary their speed progressively and continuously by holding constant the optic flow induced by the walls—the birds showed a tendency to fly at only two distinct, fixed speeds. They switched between a high speed in the wider section of the tunnel, and a low speed in the narrower section. The transition between the two speeds was abrupt, and anticipatory. The high speed was close to the energy-efficient, outdoor cruising speed for these birds, while the low speed was approximately half this value. This is the first observation of the existence of two distinct, preferred flight speeds in birds. A dual-speed flight strategy may be beneficial for birds that fly in varying environments, with the high speed set at an energy-efficient value for flight through open spaces, and the low speed suited to safe manoeuvring in a cluttered environment. The constancy of flight speed within each regime enables the distances of obstacles and landmarks to be directly calibrated in terms of optic flow, thus facilitating simple and efficient guidance of flight through changing environments.

Style APA, Harvard, Vancouver, ISO itp.

McDuie, Fiona, Michael L. Casazza, David Keiter, Cory T. Overton, Mark P. Herzog, Cliff L. Feldheim i Joshua T. Ackerman. "Moving at the speed of flight: dabbling duck-movement rates and the relationship with electronic tracking interval". Wildlife Research 46, nr 6 (2019): 533. http://dx.doi.org/10.1071/wr19028.

Pełny tekst źródła

Streszczenie:

Abstract Context Effective wildlife management requires information on habitat and resource needs, which can be estimated with movement information and modelling energetics. One necessary component of avian models is flight speeds at multiple temporal scales. Technology has limited the ability to accurately assess flight speeds, leading to estimates of questionable accuracy, many of which have not been updated in almost a century. Aims We aimed to update flight speeds of ducks, and differentiate between migratory and non-migratory flight speeds, a detail that was unclear in previous estimates. We also analysed the difference in speeds of migratory and non-migratory flights, and quantified how data collected at different temporal intervals affected estimates of flight speed. Methods We tracked six California dabbling duck species with high spatio-temporal resolution GPS–GSM transmitters, calculated speeds of different flight types, and modelled how estimates varied by flight and data interval (30min to 6h). Key results Median migratory speeds were faster (but non-significant) for the larger mallard (Anas platyrhynchos; 82.5kmh–1), northern pintail (Anas acuta; 79.0kmh–1) and gadwall (Mareca strepera; 70.6kmh–1), than the smaller-bodied northern shoveler (Spatula clypeata; 65.7kmh–1), cinnamon teal (Spatula cyanoptera; 63.5kmh–1) and American wigeon (Mareca Americana; 52kmh–1). Migratory flights were faster than non-migratory flights for all species and speeds were consistently slower with an increasing data interval. Implications The need to balance time and energy requirements may drive different speeds for migratory and non-migratory flights. Lower speeds at longer intervals are likely to be due to a greater proportion of ‘loafing’ time included in flighted segments, demonstrating that data acquired at different intervals provide a means to evaluate and estimate behaviours that influence speed estimation. Shorter-interval data should be the most accurate, but longer-interval data may be easier to collect over lengthier timeframes, so it may be expedient to trade-off a degree of accuracy in broad-scale studies for the larger dataset. Our updated flight speeds for dabbling duck species can be used to parameterise and validate energetics models, guide management decisions regarding optimal habitat distribution, and, ultimately, improve conservation management of wetlands for waterfowl.

Style APA, Harvard, Vancouver, ISO itp.

Barrett-Gonzalez, Ronald, i Nathan Wolf. "High Speed Microactuators for Low Aspect Ratio High Speed Micro Aircraft Surfaces". Actuators 10, nr 10 (13.10.2021): 265. http://dx.doi.org/10.3390/act10100265.

Pełny tekst źródła

Streszczenie:

This paper covers a class of actuators for modern high speed, high performance subscale aircraft. The paper starts with an explanation of the challenges faced by micro aircraft, including low power, extremely tight volume constraints, and high actuator bandwidth requirements. A survey of suitable actuators and actuator materials demonstrates that several classes of piezoceramic actuators are ideally matched to the operational environment. While conventional, linear actuation of piezoelectric actuators can achieve some results, dramatic improvements via reverse-biased spring mechanisms can boost performance and actuator envelopes by nearly an order of magnitude. Among the highest performance, low weight configurations are post-buckled precompressed (PBP) actuator arrangements. Analytical models display large deflections at bandwidths compatible with micro aircraft flight control speed requirements. Bench testing of an example PBP micro actuator powered low aspect ratio flight control surface displays +/−11° deflections through 40 Hz, with no occupation of volume within the aircraft fuselage and good correlation between theory and experiment. A wind tunnel model of an example high speed micro aircraft was fabricated along with low aspect ratio PBP flight control surfaces, demonstrating stable deflection characteristics with increasing speed and actuator bandwidths so high that all major aeromechanical modes could be easily controlled. A new way to control such a PBP stabilator with a Limit Dynamic Driver is found to greatly expand the dynamic range of the stabilator, boosting the dynamic response of the stabilator by more than a factor of four with position feedback system engaged.

Style APA, Harvard, Vancouver, ISO itp.

Melo, Gabriel Adriano, Marcos Maximo i Paulo Andre Castro. "High Speed Marker Tracking for Flight Tests". IEEE Latin America Transactions 20, nr 10 (październik 2022): 2237–43. http://dx.doi.org/10.1109/tla.2022.9885171.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Loquercio, Antonio, Alessandro Saviolo i Davide Scaramuzza. "AutoTune: Controller Tuning for High-Speed Flight". IEEE Robotics and Automation Letters 7, nr 2 (kwiecień 2022): 4432–39. http://dx.doi.org/10.1109/lra.2022.3146897.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Clay, Christopher L. "High Speed Flight Vehicle Structures: An Overview". Journal of Aircraft 41, nr 5 (wrzesień 2004): 978–85. http://dx.doi.org/10.2514/1.3880.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Tucker, Alistair. "High speed commercial flight — The coming era". Tourism Management 9, nr 2 (czerwiec 1988): 176–77. http://dx.doi.org/10.1016/0261-5177(88)90032-5.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Chen, Shuxing. "High Speed Flight and Partial Differential Equations". Chinese Annals of Mathematics, Series B 43, nr 5 (wrzesień 2022): 855–68. http://dx.doi.org/10.1007/s11401-022-0363-0.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Cheney, Jorn A., Jonathan P. J. Stevenson, Nicholas E. Durston, Masateru Maeda, Jialei Song, David A. Megson-Smith, Shane P. Windsor, James R. Usherwood i Richard J. Bomphrey. "Raptor wing morphing with flight speed". Journal of The Royal Society Interface 18, nr 180 (lipiec 2021): 20210349. http://dx.doi.org/10.1098/rsif.2021.0349.

Pełny tekst źródła

Streszczenie:

In gliding flight, birds morph their wings and tails to control their flight trajectory and speed. Using high-resolution videogrammetry, we reconstructed accurate and detailed three-dimensional geometries of gliding flights for three raptors (barn owl, Tyto alba ; tawny owl, Strix aluco , and goshawk, Accipiter gentilis ). Wing shapes were highly repeatable and shoulder actuation was a key component of reconfiguring the overall planform and controlling angle of attack. The three birds shared common spanwise patterns of wing twist, an inverse relationship between twist and peak camber, and held their wings depressed below their shoulder in an anhedral configuration. With increased speed, all three birds tended to reduce camber throughout the wing, and their wings bent in a saddle-shape pattern. A number of morphing features suggest that the coordinated movements of the wing and tail support efficient flight, and that the tail may act to modulate wing camber through indirect aeroelastic control.

Style APA, Harvard, Vancouver, ISO itp.

Więcej źródeł

Rozprawy doktorskie na temat "High speed flight"

Finlayson, Simon, i Allan Paull. "A 256 CHANNEL HIGH SPEED MODULAR FLIGHT COMPUTER FOR HYPERSONIC LAUNCH VEHICLES". International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604873.

Pełny tekst źródła

Streszczenie:

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada
Hypersonic test vehicles require extensive data acquisition in order to accurately determine and refine engine performance. The increasing speed of scramjet engines places new constraints on data manipulation and system control. A compact modular flight computer has been developed that has high speed analog data acquisition, a programmable high data rate PCM (Pulse Code Modulation) encoder, compact data storage, and high speed I/O (Input/Output) capabilities. Principle to the design is the thermal management required for space environments. A functional overview is presented together with a summary of the analog performance. The integration of future capability requirements is also discussed.

Style APA, Harvard, Vancouver, ISO itp.

Hooper, Jack Charles. "Vertical landing flight envelope definition". Thesis, Luleå tekniska universitet, Rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80717.

Pełny tekst źródła

Streszczenie:

This paper will investigate the development of a landing footprint for a re-entry vehicle. Vehicles can re-enter the atmosphere with a range of orientations, velocities and flight path angles. The central question is whether a vehicle with any combination of these states can be brought to an acceptable landing condition at a particular landing site and with a particular landing speed. To aide in this investigation several models must be implemented, including that of the atmosphere, the vehicles, the Earth, and the aerodynamics. A detailed analysis of the aerodynamic model will be treated, and the equations of motion subject to these aerodynamic laws will then be compared to results from existing atmospheric reentry software. The principles of optimization will then be employed to generate the footprint of landable states, based on maximum and minimum possible downrange distances, for two vehicle concepts.

Style APA, Harvard, Vancouver, ISO itp.

Graetzel, Chauncey. "MEMS & high speed vision : development and application to reverse-engineer Drosophila flight control /". Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18096.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Nastic, Aleksandra. "Cold Gas Dynamic Spray Impact: Metallic Bonding Pre-Requisites and Experimental Particle In-Flight Temperature Measurements". Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42086.

Pełny tekst źródła

Streszczenie:

The impact phenomena of high velocity micron-size particles, although commonly considered and described as detrimental in numerous engineering applications, can be used in a beneficial way if properly understood and controlled. The Cold Gas Dynamic Spray (CGDS) process, known as a surface modification, repair and additive manufacturing process, relies on such high velocity impacts. In the process, solid particles are accelerated by a supersonic gas flow to velocities up to 1200 m/s and are simultaneously heated to temperatures lower than their melting point. When propelled under proper velocity and temperature, the particles can bond onto a target surface. This bonding is caused by the resulting interfacial deformation processes occurring at the contact interface. Hence, the process relies heavily on the gas/particle and particle/substrate interactions. Although numerous experimental and/or numerical studies have been performed to describe the phenomena occurring during particle flight and impact in the CGDS process, numerous phenomena remain poorly understood. First, the effect of substrate surface topographical condition on the particle deformation and ability to successfully adhere, i.e. atomically and/or mechanically, has not been thoroughly investigated such that its influence is not well understood. Another aspect of the process that is generating the largest gap between experimental and numerical studies in the field is the lack of particle in-flight temperature measurements. Obtaining such data has proven to be technically difficult. The challenges stem from the short particle flight time, low particle temperature and small particle size preventing the use of established thermal spray pyrometry equipment. Relatedly, lack of such measurements precludes a proper experimental study of the impact related phenomena at the particle/substrate interface. As a result, the effect of particle size dependent temperature on overall coating properties and atomic bonding relies currently on estimates. Finally, the effect of particle impact characteristics on interfacial phenomena, i.e. grain size and geometry, velocity/temperature, and oxide scale thickness, on adhesion and deformation upon single particle collision has also been scarcely studied for soft particle depositions on hard substrate. Hence, the current research work aims at studying fundamental aspects of particle/gas heat transfer and particle/substrate impact features in goals to improve the understanding of the CGDS process. Different surface preparation methods will be used to create various surface roughness and topographical features, to provide a clear understanding of the target surface state influence on coating formation and adhesion. Additionally, new equipment relying on novel technology, i.e. high-speed IR camera, will be utilized to obtain particle in-flight temperature readings with sequence recordings. Subsequently, the experimental particle in-flight temperature readings will be used to develop a computational fluid dynamics model in goals to validate currently used Nusselt number correlations and heat transfer equations. The particle size-dependent temperature effect on the particle’s elastic and plastic response to its impact with a targeted surface and its ability to successfully bond and form a coating will be studied experimentally. A thorough CFD numerical work, based on experimental findings, will be included to provide full impact characteristics (velocity, temperature, size and trajectory) of successfully deposited particles. Finally, the numerical results will be utilized in the ensuing study to correlate single particle deformation, adhesion and interfacial features to impact characteristics. A finite element model will be included to investigate the effect of particle size dependent temperature on single particle interfacial pressure, temperature and bonding ability.

Style APA, Harvard, Vancouver, ISO itp.

Samiveloo, Silverraji Chemistry Faculty of Science UNSW. "High speed comprehensive two-dimenstional gas chromatography/mass spectrometry". Awarded by:University of New South Wales, 2005. http://handle.unsw.edu.au/1959.4/39732.

Pełny tekst źródła

Streszczenie:

The use of short columns, higher carrier gas velocity and fast temperature programs in Comprehensive Two-Dimensional Gas Chromatography coupled to Time-of- Flight Mass Spectrometry (GC x GC/TOFMS) technique is expected to increase the speed of analysis up to several orders of magnitude when compared to conventional gas chromatography (GC) or gas chromatography/mass spectrometry (GC/MS). A systematic evaluation of the GC x GC/TOFMS configuration for high-speed applications has received little attention in the literature. The feasibility of High Speed Comprehensive Two-Dimensional Gas Chromatography coupled to Mass Spectrometry (High speed GC x GC/MS) for complex mixtures has been investigated in this thesis. A particular focus was placed on comparing conventional scanning quadrupole mass spectrometry (qMS) with a newly available non-scanning time-of-flight instruments (TOFMS). Experiments were carried out using GC/qMS, GC x GC/qMS, GC/TOFMS and GC x GC/TOFMS both in normal (slow) and fast temperature rates coupled with high frequency modulation in GC x GC. Initially a complex mixture consists of 24 semivolatile compounds was used as the analyte for the above purpose. In the initial experiments parameters like acquisition rate and duty cycle for qMS were determined to evaluate the effectiveness of the instrument for fast analysis. The practical duty cycle value obtained for the qMS was only about 18 % for single ion and one compound at a dwell time of 10 ms in SIM mode. In both high-speed GC/qMS and high-speed GC x GC/qMS techniques only about 40 % of the components in the complex mixture were found to be well separated. The acquisition rate of scanning instruments like qMS is incompatible for fast eluting peaks in high speed GC. TOFMS that has an acquisition rate of several hundred spectra per second offer the potential to define the fast GC peaks accurately. The high quality spectra from TOFMS also enable deconvolution of coeluting peaks in the complex mixtures. The advantage of the automated spectral deconvolution is demonstrated for the identification of the coeluting peaks in the complex mixtures. Coelution of peaks is also observed with highspeed GC/TOFMS technique. The high-speed GC x GC/TOFMS was also tested with two different analyte system ??? A pesticide mixture and platformate (an aromatic mixture) to evaluate the suitability for high-speed analysis of complex mixtures. A poor resolution was observed for the pesticide mixture in the two-dimensional plane and it appeared, as there was nearly no orthogonal separation in the second dimension. The platformate mixture displayed a better two-dimensional separation. Chromatographic peak resolution is not really a primary requirement for locating and identifying the coeluting compounds in high-speed GC x GC/TOFMS technique. However, it was observed that the high-speed GC x GC/TOFMS too faced problem to unscramble the mass spectra of those compounds with similar structure and sharing the same unique masses.

Style APA, Harvard, Vancouver, ISO itp.

Kabaliuk, Natalia. "Dynamics of Blood Drop Formation and Flight". Thesis, University of Canterbury. Mechanical Engineering, 2014. http://hdl.handle.net/10092/8979.

Pełny tekst źródła

Streszczenie:

Violent crimes involving bloodshed may result in the formation of a number of blood drops that move through air and impact onto a surface producing a bloodstain pattern. Bloodstain Pattern Analysis (BPA), the analysis of the position, distribution, size and morphology of the stains within the pattern present at a crime scene, may provide information about the events that gave rise to the bloodshed. The location of blood origin, i.e. victim’s position at the moment of wounding and (or) wound location, determination is of major interest to BPA. This study investigated the dynamics of formation and flight of blood drops commonly found at a crime scene (so-called passive, cast-off, impact and gunshot drops) with the aim to facilitate blood origin determination. Features of blood drop formation at passive dripping with correlation to dripping surface characteristics were studied experimentally. A numerical scheme for accurate blood drop flight characteristics modelling, including oscillations, deformation and disintegration, was developed and validated against a number of analytical and experimental cases with special attention to the passive blood drop oscillations and ultimate deformation at terminal velocity, cast-off and impact blood drop deformation and breakup features. This provided an efficient and accurate method for typical blood drop flight reconstruction from the blood origin to impact as well as from the bloodstain location to the possible blood origin. Factors affecting blood drop trajectory and blood origin estimation were studied using the developed scheme.

Style APA, Harvard, Vancouver, ISO itp.

Tian, Hai, Tom Trojak i Charles Jones. "DATA COMMUNICATIONS OVER AIRCRAFT POWER LINES". International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604922.

Pełny tekst źródła

Streszczenie:

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada
This paper introduces a study of the feasibility and initial hardware design for transmitting data over aircraft power lines. The intent of this design is to significantly reduce the wiring in the aircraft instrumentation system. The potential usages of this technology include Common Airborne Instrumentation System (CAIS) or clock distribution. Aircraft power lines channel characteristics are presented and Orthogonal Frequency Division Multiplexing (OFDM) is introduced as an attractive modulation scheme for high-speed power line transmission. A design of a full-duplex transceiver with accurate frequency planning is then discussed. A general discussion of what communications protocols are appropriate for this technology is also provided.

Style APA, Harvard, Vancouver, ISO itp.

Stanger, Jonathan Jeffrey. "Experimental Assessment of Charge Flow in Electrospinning". Thesis, University of Canterbury. Mechanical Engineering, 2013. http://hdl.handle.net/10092/8447.

Pełny tekst źródła

Streszczenie:

Electrospinning is a method of using high voltage electric fields to transform polymer solutions into nano-scale fibres. The field has seen significant work on processing different polymers and their resulting fibres but less work has focused the electrospinning process itself. The aim of this thesis is to present experimental observations of charge behaviour in the electrospinning process in the context of the underlying physics typically used to describe electrospinning. This thesis presents a review of existing methods of measuring aspects of the electrospinning process, and reviews published mathematical models of the process as representative examples of the current understanding of the underlying physics that drive the electrospinning phenomena. A novel measurement technique is introduced - high frequency data capture of the electric current flow simultaneously at the high voltage and collector electrode. This is used in three ways: to examine bulk charge density, to measure fibre flight time, and to quantify charge lost from the fibre in flight. Charge density is studied by comparing current and mass flow at the Taylor cone under a wide range of conditions. For 8% PVOH in water a constant bulk charge density was found of 7.7 C/kg. Flight time is studied by determining the time from the application of high voltage to the charged fibre first arriving at the collector electrode. It was found that for 8% PVOH the flight time depended strongly on applied voltage while electrode distance had a negligible effect. Charge loss was studied by comparing the magnitude of the simultaneous current flows in the quasi-steady state to determine if the charge flowing into the Taylor cone arrives with the fibre at the collector. For 8% PVOH, 8% PVOH with ionic salt, 9% PVOH in water and 18% PVB in ethanol, it was found that charge is always lost.

Style APA, Harvard, Vancouver, ISO itp.

Andrade, André de. "Conception intégrée par optimisation multicritère d’un système d’actionnement pour le conditionnement d’air d’un avion plus électrique". Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0145.

Pełny tekst źródła

Streszczenie:

Dans le contexte de l'avion plus électrique, de nouveaux défis technologiques apparaissent dans le développement des systèmes embarqués afin d'augmenter leur puissance électrique. Une optimisation visant la sécurité, l'efficacité énergétique et une diminution du volume et de la masse est ainsi nécessaire. A cet effet, les dispositifs doivent être considérés dans leur ensemble et non par éléments séparés. Pour faciliter l'intégration des systèmes de puissance et assurer la qualité du réseau de bord avion, cette thèse propose de tenir compte de la mission de vol et d'étudier la CIO « Conception Intégrée Optimale » du système complet comprenant le filtre d'entrée et l’onduleur de tension alimentant l'actionneur synchrone à aimants permanents haute vitesse « HSPMSM ». L'application est dédiée au système de conditionnement d'air cabine « ECS – Environmental Conditioning Systems » comprenant le compresseur d'air étudié, d'une puissance nominale de 70 kW. La thèse est structurée en trois parties principales: le dimensionnement des composants de la chaîne de conversion électromécanique ; la conception locale et séquentielle de chacun des composants du système (boucle d'optimisation actionneur puis boucle d'optimisation « onduleur de tension + filtre d'entrée » ; la conception simultanée de tous les composants du système (boucle d'optimisation globale). Les fronts « Pareto-optimaux » des solutions obtenues à partir des méthodes de conception séquentielles et simultanées sont présentés, analysés et comparés. Les résultats mettent clairement en évidence l'avantage d'utiliser une boucle d'optimisation unique pour l'amélioration de la masse et de l'efficacité énergétique du système
The concept of More Electric Aircraft (MEA) implies new challenges especially due to the increase of the electrical embedded power. By this way, necessary improvements in terms of safety, energy efficiency and weight reduction are required. For this reason, the design of devices should be more approached with a view to the whole system than as separated elements. In order to facilitate power system integration and to ensure power quality aboard, this dissertation proposes an Integrated Optimal Design (IOD) of the input filter and the inverter feeding the High Speed Permanent Magnet Synchronous Motor (HSPMSM) by taking the flight mission into account. The Environmental Conditioning System (ECS) is equipped of the studied cabin air compressor with a rated power of 70 kW: a Multiobjective Genetic Algorithm (MOGA) is applied to achieve the CIO process. Considering the ECS as a whole, this thesis can be divided into three main parts: components sizing of the electromechanical conversion chain; local and sequential design of each system components (HSPMSM optimization loop followed by “voltage source inverter + input filter” optimization loop); simultaneous design of all system components (global optimization loop). Pareto-optimal solutions obtained from sequential and simultaneous design approaches are presented, analyzed and compared. Results clearly highlight the advantage of using a single optimization loop for the whole system in order to improve mass and efficiency

Style APA, Harvard, Vancouver, ISO itp.

Johnson, Donovan Theodore. "The metallic elephant in the room : short range flights, high-speed rail, and the environment". Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3303.

Pełny tekst źródła

Streszczenie:

It is of nearly universal acceptance that one of the pillars of American economic success over the course of the 20th century was the rapid development of infrastructure. Transportation infrastructure has been of particular importance in the rise of the United States and attributed to the spread of an increasingly mobile culture. Americans undoubtedly enjoy traveling, and the ability to do so with relative ease is of immense value to many. In Texas, the majority of economic activity takes place within what is colloquially known as the “Texas Triangle”, an area bounded by the large metropolitan areas of Houston, Dallas-Ft. Worth, and San Antonio. Intensive population growth in Texas, anchored by the triangle, has led to increasing road congestion on many routes, especially along Interstates 35 and 10. This congestion, and the wasted time and money that comes with it, are of increasing concern to the future economic vitality of the state. The Texas Triangle is also served by extensive aviation links via major airports in the major metropolitan areas, as well as smaller airports in other parts of the region. These flights, operated by American Airlines, Continental Airlines, and Southwest Airlines are frequent, but emit large amounts of greenhouse gases that contribute to ground level pollution and possibly climate change. High-speed rail has been considered by many to be a superior environmental option for intercity routes with lengths inherent to the Texas Triangle. However, given the fact that Texas is the top emitter of carbon dioxide in the U.S. and relies on an energy mix that is primarily fossil fuel powered; would a potential high-speed rail in Texas outperform the current air system environmentally, given similar passenger miles traveled? This report examines the environmental emissions of high-speed rail and compares it to the environmental emissions of our current aviation system, taking into account a life-cycle perspective.
text

Style APA, Harvard, Vancouver, ISO itp.

Książki na temat "High speed flight"

J, Glassman Arthur, i United States. National Aeronautics and Space Administration., red. Turbomachinery technology for high-speed civil flight. [Washington, DC]: National Aeronautics and Space Administration, 1989.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Center, NASA Glenn Research, red. Pulse detonation engines for high speed flight. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2002.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

1936-, Thornton Earl A., red. Thermal structures and materials for high-speed flight. Washington, DC: American Institute of Aeronautics and Astronautics, 1992.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Loquercio, Antonio. Agile Autonomy: Learning High-Speed Vision-Based Flight. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27288-2.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Center, Langley Research, red. Multivariable techniques for high-speed research flight control systems. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1999.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Center, Ames Research, i United States. Army Aviation Research and Technology Activity., red. Wake model for helicopter rotors in high speed flight. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1989.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

1940-, Wilson John W., i Langley Research Center, red. Radiation safety aspects of commercial high-speed flight transportation. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1995.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

High Speed Commercial Flight Symposium (1st 1986 Columbus, Ohio). High speed commercial flight, the coming era: Proceedings of the First High Speed Commercial Flight Symposium, Columbus, Ohio, October 22-23, 1986. Columbus: Battelle Press, 1987.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Saltzman, Edwin J. Selected examples of NACA/NASA supersonic flight research. Edwards, Calif: National Aeronautics and Space Administration, Dryden Flight Researh Center, 1995.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Więcej źródeł

Części książek na temat "High speed flight"

Hillmer, H., G. Mayer, A. Forchel, K. S. Löchner i E. Bauser. "Optical Time-of-Flight Investigation in Ambipolar Carrier Transport in Specially Designed GaAs/GaAlAs Quantum Well Structures". W High-Speed Electronics, 97–100. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82979-6_16.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Wegener, Peter P. "Toward High Speed: Supersonic and Hypersonic Flight". W What Makes Airplanes Fly?, 145–66. New York, NY: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-0403-6_10.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Wegener, Peter P. "Toward High Speed: Supersonic and Hypersonic Flight". W What Makes Airplanes Fly?, 169–93. New York, NY: Springer New York, 1997. http://dx.doi.org/10.1007/978-1-4612-2254-5_10.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Korsun, O. N., S. V. Nikolaev i M. H. Om. "Methods for Operational Correction of Aircraft Indication Support in Flight Tests". W Recent Developments in High-Speed Transport, 71–82. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9010-6_8.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Gorn, Michael H., i Giuseppe De Chiara. "High-Speed and High-Altitude Flight: The First X-Planes". W X-Planes from the X-1 to the X-60, 2–26. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86398-2_1.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Loquercio, Antonio. "Introduction". W Agile Autonomy: Learning High-Speed Vision-Based Flight, 1–21. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27288-2_1.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Loquercio, Antonio. "Contributions". W Agile Autonomy: Learning High-Speed Vision-Based Flight, 23–41. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27288-2_2.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Loquercio, Antonio. "Future Directions". W Agile Autonomy: Learning High-Speed Vision-Based Flight, 43–45. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27288-2_3.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Navitha, M. V., M. Z. Kurian, G. Koteswara Rao i B. Umashankar. "High Speed Programmable Digital Telemetry Filter for Flight Test". W Advances in Intelligent Systems and Computing, 501–9. New Delhi: Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-0740-5_61.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Isaeva, S. Y., i L. V. Shadrina. "Long-Term Demand for Supersonic Jets and Role of Supersonic Flight in Air Transportation of the Future". W Recent Developments in High-Speed Transport, 3–10. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9010-6_1.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "High speed flight"

GREGOREK, G., R. BOYD i P. WEISSMAN. "High speed transpacific passenger flight". W Aircraft Design, Systems and Operations Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-4484.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Bolonkin, Alexander. "High Speed Catapult Aviation". W AIAA Atmospheric Flight Mechanics Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-6221.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Anderson, John. "High-Speed Flight: Key Aerodynamic Breakthroughs". W AIAA International Air and Space Symposium and Exposition: The Next 100 Years. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-2673.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Li, Jingzhen, i Rong Cao. "Measuring yaw angle of a free-flight projectile". W High-Speed Photography and Photonics: 21st International Congress, redaktorzy Ung Kim, Joon-Sung Chang i Seung-Han Park. SPIE, 1995. http://dx.doi.org/10.1117/12.209624.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Gupta, Mohit, Shree Nayar, Andreas Velten i Eric Breitbach. "A geometric perspective on time-of-flight camera design (Conference Presentation)". W High-Speed Biomedical Imaging and Spectroscopy IV, redaktorzy Keisuke Goda i Kevin K. Tsia. SPIE, 2019. http://dx.doi.org/10.1117/12.2514399.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Chang, Rong-Seng, i Tung Cheng. "High Speed Photography On Moire Pattern Masked Flight Target". W 16th International Congress on High Speed Photography and Photonics, redaktorzy Michel L. Andre i Manfred Hugenschmidt. SPIE, 1985. http://dx.doi.org/10.1117/12.968013.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Valasek, John, i Lawrence Walchli. "High speed, low angle-of-attack pneumatic vortex control". W 23rd Atmospheric Flight Mechanics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-4449.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Abramson, Nils. "Light-In-Flight Recording: Compensation For Relativistic Effects". W 16th International Congress on High Speed Photography and Photonics, redaktorzy Michel L. Andre i Manfred Hugenschmidt. SPIE, 1985. http://dx.doi.org/10.1117/12.968006.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

van Els, Thomas J. "First Deminsys (high speed FBG interrogator) flight". W SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, redaktor Tribikram Kundu. SPIE, 2009. http://dx.doi.org/10.1117/12.823893.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Karaman, Sertac, i Emilio Frazzoli. "High-speed flight in an ergodic forest". W 2012 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2012. http://dx.doi.org/10.1109/icra.2012.6225235.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Raporty organizacyjne na temat "High speed flight"

Molloy, Matthew H. High-Speed Flight and the Military. Fort Belvoir, VA: Defense Technical Information Center, kwiecień 1999. http://dx.doi.org/10.21236/ada389456.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Ronzhin, A., S. Los, M. Martens, E. Ramberg, H. Kim, C. Chen, C. Kao i in. High-speed digitization readout of silicon photomultipliers for time of flight positron emission tomography. Office of Scientific and Technical Information (OSTI), luty 2011. http://dx.doi.org/10.2172/1012683.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Noone, Emily, i Lydia Harriss. Hypersonic missiles. Parliamentary Office of Science and Technology, czerwiec 2023. http://dx.doi.org/10.58248/pn696.

Pełny tekst źródła

Streszczenie:

This POSTnote looks at hypersonic missile technologies, efforts to develop them, potential applications, and the possible challenges they may present for missile defence and global stability. Key Points: • Hypersonic missiles combine speeds of over five times the speed of sound with significant manoeuvrability during flight. • Their manoeuvrability enables them to change trajectory during flight, making their flight-path and target difficult to predict. • They fly at lower altitudes than ballistic missiles, which means that they may be harder to track at long distances with some surface-based sensors, such as certain radar. • There are two main types of hypersonic missile: hypersonic glide vehicles (HGVs) and hypersonic cruise missiles (HCMs). • HGVs are mounted onto rocket boosters for launch and may be accelerated to speeds of Mach 20 or more. The glider then separates from the booster and flies unpowered in the Earth’s upper atmosphere at altitudes of 30-80 km, before diving towards the target. • HCMs typically have a ramjet or scramjet engine that enables them to reach hypersonic speeds at altitudes of 20-40 km. • China and Russia have reportedly deployed hypersonic missiles that could deliver conventional or nuclear weapons. The US is testing multiple hypersonic technologies. • The AUKUS agreement between the UK, US and Australia includes developing hyper-sonic and counter-hypersonic technologies. • Developing hypersonic missiles requires significant research and development challenges to be overcome, contributing to their high development and manufacturing costs. • The speed, manoeuvrability and altitude of hypersonic missiles may challenge existing missile defences, although their uses and effectiveness are still being assessed. • Defence analysts disagree about the potential implications of hypersonic missiles for global peace and stability. Some suggest they could increase the risk of conflict escalation, while others say that they will not alter the strategic balance between nuclear powers. • Arms control, export controls and other measures may help limit potential harm to peace and stability, but these approaches face challenges.

Style APA, Harvard, Vancouver, ISO itp.

Haehnel, Robert, Scott Christensen, J. Whitlow, Andrew Bauer, Ari Meyer, Gautham Rangarajan, Yonghu Wenren i in. A computational prototyping environment interface for DoD CREATE™-AV Helios simulations. Engineer Research and Development Center (U.S.), maj 2021. http://dx.doi.org/10.21079/11681/40582.

Pełny tekst źródła

Streszczenie:

Computational Prototyping Environment (CPE) is a web-based portal designed to simplify running Department of Defense (DoD) modeling and simulation tools on the DoD Supercomputing Resource Center’s (DSRC) High Performance Computing (HPC) systems. The first of these tools to be deployed in the CPE is an application (app) to conduct parametric studies and view results using the CREATE-AV Helios CFD software. Initial capability includes hover (collective sweep) and forward flight (speed sweep) performance calculations. The CPE Helios app allows for job submission to a DSRC’s HPC system and for the viewing of results created by Helios, i.e., time series and volumetric data. Example data input and results viewing are presented. Planned future functionality is also outlined.

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!