Готові списки джерел за темами / Thin jet

Добірка наукової літератури з теми "Thin jet"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Thin jet"

1

Gyulassy, M., P. Lévai, and I. Vitev. "Jet quenching in thin plasmas." Nuclear Physics A 661, no. 1-4 (December 1999): 637–40. http://dx.doi.org/10.1016/s0375-9474(99)85106-9.

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2

Minin, Vladilen F., Igor V. Minin, and Oleg V. Minin. "SHAPED CHARGES WITH THIN AND ULTRA-THIN FACINGS." Vestnik SSUGT (Siberian State University of Geosystems and Technologies) 26, no. 1 (2021): 133–42. http://dx.doi.org/10.33764/2411-1759-2021-26-1-133-142.

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The aim of the research is to study the formation of cumulative jets in charges with cumulative facings with a wall thickness of the order of the thickness of the jet-forming layer in classical charges. Based on mathematical modeling and experiments, it is shown that in such charges, the detonation products of explosives can play the role of an additional body that affects the axial velocity of the lin-ing throwing and leads to a collapse angle of more than 180 degrees. In this process, the mass of the jet is greater than the mass of the pestle. For the first time, corrugations were experimentally detected on the surface of the lining during its explosive compression. Corrugations may occur on the surface of the lining, leading to instability of the cumulative jet formation process. As a result of the study, it was found that the minimum wall thickness of the cladding is mainly determined by the instability of its surface (the appearance of corrugations on its surface).
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3

Weiss, Peter. "Thin Jet Flies Two for One." Science News 161, no. 9 (March 2, 2002): 133. http://dx.doi.org/10.2307/4013197.

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4

Halpern, B. L., J. J. Schmitt, J. W. Golz, Y. Di, and D. L. Johnson. "Gas jet deposition of thin films." Applied Surface Science 48-49 (January 1991): 19–26. http://dx.doi.org/10.1016/0169-4332(91)90302-z.

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5

German, Radoslav, and Roger E. Khayat. "Steady and transient thin-jet flow." Physics of Fluids 17, no. 10 (2005): 102104. http://dx.doi.org/10.1063/1.2103147.

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6

Pullin, D. I., and J. M. Simmons. "Stability of the thin-jet model of the unsteady jet flap." AIAA Journal 23, no. 7 (July 1985): 1118–20. http://dx.doi.org/10.2514/3.9046.

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7

Duchemin, Laurent. "Self-focusing of thin liquid jets." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 464, no. 2089 (October 23, 2007): 197–206. http://dx.doi.org/10.1098/rspa.2007.0068.

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The nonlinear evolution of an initially perturbed free surface perpendicularly accelerated, or of an initially flat free surface subject to a perturbed velocity profile, gives rise to the emergence of thin spikes of fluid. We are investigating the long-time evolution of a thin inviscid jet of this kind, subject or not to a body force acting in the direction of the jet itself. A fully nonlinear theory for the long-time evolution of the jet is given. In two dimensions, the curvature of the tip scales like t 3 , where t is time, and the peak undergoes an overshoot in acceleration which evolves like t −5 . In three dimensions, the jet evolves towards an axisymmetric shape, and the curvature and the overshoot in acceleration obey asymptotic laws in t 2 and t −4 , respectively. The asymptotic self-similar shape of the spike is found to be a hyperbola in two dimensions, a hyperboloid in three dimensions. Scaling laws and self-similarity are confronted with two-dimensional computations of the Richtmyer–Meshkov instability.
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8

Sasaki, Yoshi N., and Niklas Schneider. "Decadal Shifts of the Kuroshio Extension Jet: Application of Thin-Jet Theory*." Journal of Physical Oceanography 41, no. 5 (May 1, 2011): 979–93. http://dx.doi.org/10.1175/2011jpo4550.1.

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Abstract Meridional shifts of the Kuroshio Extension (KE) jet on decadal time scales are examined using a 1960–2004 hindcast simulation of an eddy-resolving ocean general circulation model for the Earth Simulator (OFES). The leading mode of the simulated KE represents the meridional shifts of the jet on decadal time scales with the largest southward shift in the early 1980s associated with the climate regime shift in 1976/77, a result confirmed with subsurface temperature observations. The meridional shifts originate east of the date line and propagate westward along the mean jet axis, a trajectory inconsistent with the traditionally used linear long Rossby waves linearized in Cartesian coordinates, although the phase speed is comparable to that in the traditional framework. The zonal scale of these westward propagation signals is about 4000 km and much larger than their meridional scale. To understand the mechanism for the westward propagation of the KE jet shifts, the authors consider the limit of a thin jet. This dynamic framework describes the temporal evolution of the location of a sharp potential vorticity front under the assumption that variations along the jet are small compared to variations normal to the jet in natural coordinates and is well suited to the strong jet and potential vorticity gradients of the KE. For scaling appropriate to the decadal adjustments in the KE, the thin-jet model successfully reproduces the westward propagations and decadal shifts of the jet latitude simulated in OFES. These results give a physical basis for the prediction of decadal variability in the KE.
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9

Sasaki, Yoshi N., and Niklas Schneider. "Decadal Shifts of the Kuroshio Extension Jet: Application of Thin-Jet Theory*." Journal of Physical Oceanography 41, no. 5 (May 2011): 979–93. http://dx.doi.org/10.1175/2010jpo4550.1.

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10

Khayat, Roger E., Michael A. N. Hanyk, and Moinuddin Ahmed. "A spectral approach to thin jet flow." Applied Numerical Mathematics 62, no. 9 (September 2012): 1187–96. http://dx.doi.org/10.1016/j.apnum.2010.11.006.

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Дисертації з теми "Thin jet"

1

Bathurst, Stephen 1980. "Ink jet printing of PZT thin films for MEMS." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78236.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 108-113).
Of the readily available piezoelectric engineering materials perovskite phase lead zirconate titanate (PZT) has the strongest mechanical to electrical coupling. PZT based devices have the potential to have the highest performance. Due to the strong piezoelectric response and low operating voltage, many groups have worked to integrate thin film PZT into a wide range of microelectromechanical systems (MEMS) devices including: actuators, energy harvesters, resonators, pressure sensors, pumps, nano-positioning stages, and MEMS switches. However, processing of thin film PZT is not readily compatible with existing MEMS fabrication processes and significant design constraints exist when integrating thin film PZT. In recent years drop-on-demand (DOD) printing has been studied as a robust, flexible, and inexpensive method of material deposition for MEMS. Direct printing enables the designer to deposit a film based on a digital pattern file only eliminating the need for photolithography and subsequent etching steps in the manufacturing process flow. There is a significant cost savings due to a reduction in the material consumption during manufacturing and in chemical waste produced. The result is a manufacturing process that is cleaner and cheaper than other common deposition techniques. The most compelling benefit of direct printing of PZT is that it provides a freedom of geometry that eliminates many of the design constraints currently associated with PZT MEMS. Since high quality thin films can be achieved with deposition control that is not possible with spin coating, novel functionalities can be incorporated into PZT MEMS. Specifically, PZT printing is able to deposit material over and around large out-of-plane features. In addition, the thickness of thin film PZT can vary deterministically across a device or across a wafer. A new manufacturing method for the deposition of PZT thin films based on ink jet printing has been developed and used to fabricate a piezoelectric micromachined ultrasonic transducer. A solvent system and processes parameters were established that enable the deposition of high quality PZT thin films. Substrate temperature and drop spacing for uniform deposition were determined and both multilayer and single layer PZT films were successfully deposited. Alignment within 10[mu]m and a resolution limit of 30[mu]m were demonstrated. The performance of a printed PZT based ultrasonic transducer was fit to established models to determine piezoelectric coupling and dielectric properties. The piezoelectric coupling coefficient, d₃₁, for printed PZT was between -75pC/N and -95pC/N. Impedance data at 1kHz provided the relative permittivity (750-890) and the dielectric loss tangent (2.4%-2.8%). The final printing process enabled the first digital deposition of thin film PZT and the printed PZT based pMUT confirmed the properties of the film are within the range required for a high performance piezoelectric MEMS devices.
by Stephen P. Bathurst.
Ph.D.
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2

Li, Jiantong. "Ink-jet printing of thin film transistors based on carbon nanotubes." Doctoral thesis, KTH, Integrerade komponenter och kretsar, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-24427.

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The outstanding electrical and mechanical properties of single-walled carbon nanotubes (SWCNTs) may offer solutions to realizing high-mobility and high-bendability thin-film transistors (TFTs) for the emerging flexible electronics. This thesis aims to develop low-cost ink-jet printing techniques for high-performance TFTs based on pristine SWCNTs. The main challenge of this work is to suppress the effects of “metallic SWCNT contamination” and improve the device electrical performance. To this end, this thesis entails a balance between experiments and simulations.   First, TFTs with low-density SWCNTs in the channel region are fabricated by utilizing standard silicon technology. Their electrical performance is investigated in terms of throughput, transfer characteristics, dimensional scaling and dependence on electrode metals. The demonstrated insensitivity of electrical performance to the electrode metals lifts constrains on choosing metal inks for ink-jet printing.   Second, Monte Carlo models on the basis of percolation theory have been established, and high-efficiency algorithms have been proposed for investigations of large-size stick systems in order to facilitate studies of TFTs with channel length up to 1000 times that of the SWCNTs. The Monte Carlo simulations have led to fundamental understanding on stick percolation, including high-precision percolation threshold, universal finite-size scaling function, and dependence of critical conductivity exponents on assignment of component resistance. They have further generated understanding of practical issues regarding heterogeneous percolation systems and the doping effects in SWCNT TFTs.   Third, Monte Carlo simulations are conducted to explore new device structures for performance improvement of SWCNT TFTs. In particular, a novel device structure featuring composite SWCNT networks in the channel is predicted by the simulation and subsequently confirmed experimentally by another research group. Through Monte Carlo simulations, the compatibility of previously-proposed long-strip-channel SWCNT TFTs with ink-jet printing has also been demonstrated.   Finally, relatively sophisticated ink-jet printing techniques have been developed for SWCNT TFTs with long-strip channels. This research spans from SWCNT ink formulation to device design and fabrication. SWCNT TFTs are finally ink-jet printed on both silicon wafers and flexible Kapton substrates with fairly high electrical performance.
QC 20100910
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3

Fang, Mei. "Properties of Multifunctional Oxide Thin Films Despostied by Ink-jet Printing." Doctoral thesis, KTH, Teknisk materialfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102021.

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Ink-jet printing offers an ideal answer to the emerging trends and demands of depositing at ambient temperatures picoliter droplets of oxide solutions into functional thin films and device components with a high degree of pixel precision. It is a direct single-step mask-free patterning technique that enables multi-layer and 3D patterning. This method is fast, simple, easily scalable, precise, inexpensive and cost effective compared to any of other methods available for the realization of the promise of flexible, and/or stretchable electronics of the future on virtually any type of substrate. Because low temperatures are used and no aggressive chemicals are required for ink preparation, ink-jet technique is compatible with a very broad range of functional materials like polymers, proteins and even live cells, which can be used to fabricate inorganic/organic/bio hybrids, bio-sensors and lab-on-chip architectures. After a discussion of the essentials of ink-jet technology, this thesis focuses particularly on the art of designing long term stable inks for fabricating thin films and devices especially oxide functional components for electronics, solar energy conversion, opto-electronics and spintronics. We have investigated three classes of inks: nanoparticle suspension based, surface modified nanoparticles based, and direct precursor solution based. Examples of the films produced using these inks and their functional properties are: 1) In order to obtain magnetite nanoparticles with high magnetic moment and narrow size distribution in suspensions for medical diagnostics, we have developed a rapid mixing technique and produced nanoparticles with moments close to theoretical values (APL 2011 and Nanotechnology 2012). The suspensions produced have been tailored to be stable over a long period of time. 2)In order to design photonic band gaps, suspensions of spherical SiO2 particles were produced by chemical hydrolysis (JAP 2010 and JNP 2011 - not discussed in the thesis). 3) Using suspension inks, (ZnO)1-x(TiO2)x composite films have been printed and used to fabricate dye sensitized solar cells (JMR 2012). The thickness and the composition of the films can be easily tailored in the inkjet printing process. Consequently, the solar cell performance is optimized. We find that adding Ag nanoparticles improves the ‘metal-bridge’ between the TiO2 grains while maintaining the desired porous structure in the films. The photoluminescence spectra show that adding Ag reduces the emission intensity by a factor of two. This indicates that Ag atoms act as traps to capture electrons and inhibit recombination of electron-hole pairs, which is desirable for photo-voltaic applications. 4) To obtain and study room temperature contamination free ferromagnetic spintronic materials, defect induced and Fe doped MgO and ZnO were synthesized ‘in-situ’ by precursor solution technique (preprints). It is found that the origin of magnetism in these materials (APL 2012 and MRS 2012) is intrinsic and probably due to charge transfer hole doping. 5) ITO thin films were fabricated via inkjet printing directly from liquid precursors. The films are highly transparent (transparency >90% both in the visible and IR range, which is rather unique as compared to any other film growth technique) and conductive (resistivity can be ~0.03 Ω•cm). The films have nano-porous structure, which is an added bonus from ink jetting that makes such films applicable for a broad range of applications. One example is in implantable biomedical components and lab-on-chip architectures where high transparency of the well conductive ITO electrodes makes them easily compatible with the use of quantum dots and fluorescent dyes. In summary, the inkjet patterning technique is incredibly versatile and applicable for a multitude of metal and oxide deposition and patterning. Especially in the case of using acetate solutions as inks (a method demonstrated for the first time by our group), the oxide films can be prepared ‘in-situ’ by direct patterning on the substrate without any prior synthesis stages, and the fabricated films are stoichiometric, uniform and smooth. This technique will most certainly continue to be a versatile tool in industrial manufacturing processes for material deposition in the future, as well as a unique fabrication tool for tailorable functional components and devices.

QC 20120907

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4

Okabayashi, Y., K. kanai, Y. Ouchi, K. Seki, and 一彦 関. "Apparatus for solution jet beam deposition of organic thin films and in situ ultraviolet photoelectron spectroscopy." American Institute of Physics, 2006. http://hdl.handle.net/2237/7048.

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5

Mendez, Miguel Alfonso. "Dynamics of Gas Jet Impinging on Falling Liquid Films." Doctoral thesis, Universite Libre de Bruxelles, 2018. https://dipot.ulb.ac.be/dspace/bitstream/2013/281945/5/contratMM.pdf.

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This thesis describes the unstable dynamics of a gas jet impinging on a falling liquid film. This flow configuration is encountered in the jet wiping process, used in continuous coating applications such as the hot-dip galvanizing to control the thickness of a liquid coat on a moving substrate. The interaction between these flows generates a non-uniform coating layer, of great concern for the quality of industrial products, and results from a complex coupling between the interface instabilities of the liquid film and the confinement-driven instabilities of the impinging jet.Combining experimental and numerical methods, this thesis studied the dynamics of these flows on three simplified flow configurations, designed to isolate the key features of their respective instabilities and to provide complementary information on their mutual interaction. These configurations include the gas jet impingement on a falling liquid film perturbed with controlled flow rate pulsation, the gas jet impingement on a solid interface reproducing stable and unstable liquid film interfaces and a laboratory scaled model of the jet wiping process. Each of these configurations was reproduced on dedicated experimental set-up, instrumented for non-intrusive measurement techniques such as High-Speed Flow Visualization (HSFV) and Time-resolved Particle Image Velocimetry (TR-PIV) for the gas jet flow analysis, Laser Induced Fluorescence (LIF) tracking of the liquid interface, and 3D Light Absorption (LAbs) measurement of the liquid film thickness. To optimize the performances of these measurement techniques, several advanced data processing routines were developed, including a novel image pre-processing method for background removal in PIV and a dynamic feature tracking for the automatic detection of the jet flow and the liquid film interface from HSFV, LIF, and PIV videos.To identify the flow structures driving the unstable response of the jet flow, a novel data-driven modal decomposition was developed. This decomposition, referred to as Multiscale Proper Orthogonal Decomposition (mPOD), was validated on synthetic, numerical and experimental test cases and allowed for better feature extraction than classical alternatives such as Proper Orthogonal Decomposition (POD) or Dynamic Mode Decomposition (DMD).The experimental work on these laboratory models was complemented with the analysis of several numerical simulations, including a classical 2D Unsteady Reynolds Averaged Navier Stokes (URANS) modeling of the gas jet impingement on a fixed interface, a 2D Variational Multiscale Simulation (VMS) with anisotropic mesh refinement of the gas jet impingement on a pulsing interface, and a 3D simulation of the jet wiping process combining Large Eddy Simulation (LES) on the gas side with Volume of Fluid (VOF) treatment of the liquid film flow. The experimental modal analysis on the dynamic response of the gas jet and the characterization of the pressure-velocity coupling in the numerical investigation allowed for a complete picture of the mechanism driving the jet oscillation and its possible impact on the liquid film.In parallel, several flow control strategies to prevent the jet oscillation were developed, tested numerically and experimentally in simplified conditions, and later implemented on the design of a new nozzle for the jet wiping process. This new nozzle was finally tested on a laboratory scale of the wiping process and its performances compared to single jet and multiple jet wiping configurations. In these three cases, the experimental work presents the modal analysis of the gas field using TR-PIV and mPOD, the liquid interface tracking via LIF, and the final coating thickness characterization via LAbs.The large spatiotemporally resolved experimental database allowed to give a detailed description of the jet wiping instability and to provide new insights on this fascinating fundamental and applied problem of fluid dynamics.
Doctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished
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6

Mishra, Nilesha [Verfasser]. "Influence of strain on the functionality of ink-jet printed thin films and devices on flexible substrates / Nilesha Mishra." Karlsruhe : KIT Scientific Publishing, 2019. http://www.ksp.kit.edu.

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Mishra, Nilesha [Verfasser]. "Influence of strain on the functionality of ink-jet printed thin films and devices on flexible substrates / Nilesha Mishra." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/1166234304/34.

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8

Rajendran, Sucharitha. "Investigation of Drop Generation from Low Velocity Liquid Jets and its Impact Dynamics on Thin Liquid Films." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1512038966865923.

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9

Sahay, Prateek. "Development of a Robotic Cell for Removal of Tabs from Jet Engine Turbine Blade." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1574417686354007.

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10

Drahi, Etienne. "Impression de silicium par procédé jet d’encre : des nanoparticules aux couches minces fonctionnelles pour applications photovoltaïques." Thesis, Saint-Etienne, EMSE, 2013. http://www.theses.fr/2013EMSE0685/document.

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Cette étude prend place dans le cadre du projet ANR Inxilicium visant à la réalisation de cellules solaires en couches minces de silicium par jet d’encre. Les nanoparticules de silicium sont des matériaux à fort potentiel pour la levée de verrous technologiques grâce à leurs propriétés spécifiques. Des encres de nanoparticules de Si issues de diverses méthodes de synthèse ont été imprimées par jet d’encre sur différents substrats : quartz, électrodes métalliques (aluminium, molybdène) et transparente conductrice (ZnO:Al). L’optimisation du procédé d’impression, de l’interaction encre/substrat (via la modulation de l’énergie de surface des substrats) et de l’étape de séchage a permis l’obtention de couches minces homogènes et continues (plusieurs centaines de nm à quelques µm d’épaisseur)A posteriori, une étape de recuit est nécessaire pour recouvrer des propriétés fonctionnelles. L’utilisation de nanoparticules à la physico-chimie de surface contrôlée fait décroître les températures de frittage de 1100 °C à environ 600 °C. En complément, des recuits sélectifs (micro-ondes et photonique) ont été évalués pour leur application sur des substrats flexibles et bas coûts.Les propriétés optiques et les interfaces électrode/silicium ont été examinées afin d’intégrer ces couches dans des dispositifs (cellule solaire…). La formation de transitions métallurgiques Al-Si et Mo-Si a été étudiées par DRX-in situ. L’ensemble de ces travaux a permis la réalisation d’une jonction PN montrant un comportement photovoltaïque à fort champ grâce aussi à la mise au point d’une méthode innovante de collage ouvrant la voie à une réduction du bilan thermique des procédés de fabrication
This study takes place in the frame of the Inxilicium project from the National Research Agency, which targets the fabrication of silicon thin film solar cells by inkjet-printing. Thanks to their specific properties, silicon nanoparticles are materials with strong potential for technological breakthroughs. Silicon nanoparticle-based inks made by different synthesis routes have been inkjet-printed on different substrates: quartz, metallic electrodes (aluminum, molybdenum) and transparent electrodes (ZnO:Al). Homogeneous and continuous thin films (from several hundreds of nm to some µm thick) have been obtained through optimization of the printing process, the ink/substrate interaction (via substrates surface energy tuning) and the drying step.A posteriori, an annealing step is mandatory for recovering of functional properties. By using nanoparticles with tailored surface physical chemistry, the sintering temperature decreases from 1100 °C to 600 °C. In order to allow the use of this material on flexible and low cost substrates, selective sintering (microwave and photonics) have been also evaluated.Thin film optical properties and electrode/silicon interfaces have been investigated with the purpose to integrate those layers into devices (solar cells…). Metallurgical evolution of Al-Si and Mo-Si physical interfaces has been studied by in situ XRD.This work allowed the fabrication of a PN junction with a photovoltaic behaviour under strong polarization voltage thanks to the development of an innovative thermal pasting process, which opens the way to the reduction of process thermal budget
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Книги з теми "Thin jet"

1

Berne, Emma Carlson. Hummingbirds: Faster than a jet! New York: PowerKids Press, 2014.

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2

Zeldin, Isaiah. What this modern Jew believes. Los Angeles: Isaac Nathan Pub. Co., 1996.

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3

Wilson, Skip. This is "jest" for you. Port Washington, N.Y: Ashley Books, 1986.

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4

Simonsen, Erik. This is Stealth: The F-117 and B-2 in color. London: Greenhill Books, 1992.

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5

Jensen, Maria Kirstine Dorothea. Jeg længes--: Fra Thit Jensens dagbøger 1891-1927. København: G.E.C. Gad, 1991.

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6

Thin ice: Money, politics and the demise of an NHL franchise. Halifax, N.S: Fernwood, 1996.

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7

Marcelo J.S. de Lemos. Turbulent Impinging Jets into Porous Materials. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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8

Twiss, Peter. Faster than the sun. London: Grub Street, 2005.

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9

Schochet, Jacob Immanuel. Who is a Jew?: 30 questions and answers about this controversial and divisive issue. New York, N.Y: Shofar Association of American, 1987.

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10

Hizak, Shlomo. Building or breaking: What does a Jew think when a Christian says "I love you". Jerusalem: Jerusalem Center for Biblical Studies and Research, 1985.

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Частини книг з теми "Thin jet"

1

Kononenko, Serhii, Sergey Dobrotvorskiy, Yevheniia Basova, Ludmila Dobrovolska, and Vitalii Yepifanov. "Simulation of Thin-Walled Parts End Milling with Fluid Jet Support." In Advances in Design, Simulation and Manufacturing III, 380–89. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50794-7_37.

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2

Miyata, M., N. Kurita, and I. Nakamura. "Turbulent Plane Jet Excited Mechanically by an Oscillating Thin Plate in the Potential Core." In Turbulent Shear Flows 7, 209–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76087-7_16.

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3

Botko, Frantisek, Dominika Botkova, Jiri Klich, Dagmar Klichova, and Vladimir Simkulet. "Preliminary Testing of Production Thin-Walled Ribs into Aluminum Alloy AW6060 Using the Abrasive Water Jet." In Advances in Manufacturing Engineering and Materials II, 75–86. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71956-2_7.

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Giulietti, Raffaello, and Sandro Pedrazzini. "Thin Client for Web Using Swing." In JIT’99, 58–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60247-4_6.

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Föll, Fabian, Valerie Gerber, Claus-Dieter Munz, Berhand Weigand, and Grazia Lamanna. "On the Consideration of Diffusive Fluxes Within High-Pressure Injections." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 195–208. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_12.

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Abstract Mixing characteristics of supercritical injection studies were analyzed with regard to the necessity to include diffusive fluxes. Therefore, speed of sound data from mixing jets were investigated using an adiabatic mixing model and compared to an analytic solution. In this work, we show that the generalized application of the adiabatic mixing model may become inappropriate for subsonic submerged jets at high-pressure conditions. Two cases are discussed where thermal and concentration driven fluxes are seen to have significant influence. To which extent the adiabatic mixing model is valid depends on the relative importance of local diffusive fluxes, namely Fourier, Fick and Dufour diffusion. This is inter alia influenced by different time and length scales. The experimental data from a high-pressure n-hexane/nitrogen jet injection were investigated numerically. Finally, based on recent numerical findings, the plausibility of different thermodynamic mixing models for binary mixtures under high pressure conditions is analyzed.
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Hirsch, Brett D. "From Jew to Puritan: The Emblematic Owl in Early English Culture." In ‘This Earthly Stage’, 131–71. Turnhout: Brepols Publishers, 2010. http://dx.doi.org/10.1484/m.cursor-eb.3.4722.

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Decher, Reiner. "Pressure: The Bernoulli Principle and Flow Energy Conservation." In The Vortex and The Jet, 37–48. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_5.

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AbstractThe relation between descriptive variables of flowing air, pressure and the like, and the dynamic field, speeds or velocities, are often invoked for their understanding. Such relationships depend on whether the flow is compressible or not. When it is, physical work done by air elements on one another, become important. This chapter, virtually devoid of illuminating images, nevertheless sheds light on how to think about air flows in general and how to deduce the local pressures from knowledge of the flow field.
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Decher, Reiner. "The Compressor: Gas Turbine Engine Keystone." In The Vortex and The Jet, 109–19. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_10.

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AbstractAll engines involve the raising of pressure in the engine’s medium, be it liquid compression of water, piston-cylinder compression of air or compression by aerodynamic forces. The last is the hardest because it is required to be efficient and stable. An aerodynamic air compressor works by slowing velocities to raise pressure. The airfoil has a difficult time doing this reliably and well and so does the compressor. When it does, it allows for amazing performance of the engine in terms of power and efficiency.
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Decher, Reiner. "Propulsion for Flight: Power or Thrust?" In The Vortex and The Jet, 95–107. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_9.

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AbstractAn engine is required to provide the power necessary for overcoming the drag of flight. There are not many engine types available to perform that important function: they all have advantages and limitations. They share common features and are different in fundamental ways. The histories of their development paced the history of man’s ability to fly and the modern gas turbine engine is the climax of that progression toward today’s state of aviation. In this chapter we focus on the salient features of engines as they relate to flight.
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Decher, Reiner. "The Vortex—A Journey into Beauty and Mystery." In The Vortex and The Jet, 1–4. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8028-1_1.

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AbstractVorticity is everywhere. We cannot live without it and we cannot fly without it. The vortex as a construct of fluid motion is necessary for the wing to lift. The propulsion system, be it a propeller or a jet engine, also needs a vorticity to provide the force needed to overcome the resistance of motion through air. This chapter is a road map of how we will proceed on a journey of exploration that will take us from abstract ideas to the observation of beauty and the realization of great flight performance.
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Тези доповідей конференцій з теми "Thin jet"

1

Ahmed, Moinuddin, and Roger E. Khayat. "Flow of a Thin Viscoelastic Jet." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30505.

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The influence of elasticity and inertia for steady flow of a thin viscoelastic fluid jet is examined theoretically. The fluid is assumed to emerge from a vertical channel and driven by a pressure gradient and/or gravity. The boundary-layer equations are generalized for a viscoelastic thin film obeying the Oldroyd-b constitutive model. Special emphasis is placed on the initial stages of jet development. The formulation and simulation are carried out for two-dimensional jet flow in order to better understand the intricate wave and flow structures for a viscoelastic jet. In contrast to the commonly used depth-averaging solution method, the strong nonlinearities are preserved in the present formulation as the viscoelastic boundary-layer equations are solved by expanding the flow field in terms of orthonormal shape functions. It is found that for a steady viscoelastic jet, a reduction in inertia or a rise in elasticity leads to the emergence of surface waviness and excessive normal stress, which leads to the formation of sharp gradients in the velocity and shear stress. These gradients can be sufficiently substantial to cause a discontinuity or shock in the flow. During transition, the surface profiles adhere earlier to the shape of the final steady state instead of a traveling wave, the transition between the two states takes the form of a standing wave, which grows essentially in amplitude only.
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Pradhan, Sahadev. "Thin film deposition using rarefied gas jet." In 21st AIAA International Space Planes and Hypersonics Technologies Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-2331.

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Pradhan, Sahadev. "Thin film deposition using rarefied gas jet." In 52nd AIAA/SAE/ASEE Joint Propulsion Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-4505.

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4

Singh, Prashant, Mingyang Zhang, Jaideep Pandit, and Roop L. Mahajan. "Array Jet Impingement Onto High Porosity Thin Metal Foams at Zero Jet-to-Foam Spacing." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87915.

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Metal foams enhance heat transfer rates by providing significant increase in wetted surface area and by thermal dispersion caused by flow mixing induced by the tortuous flow paths. Further, jet impingement is also an effective method of enhancing local convective heat transfer rates. In the present study, we have carried out an experimental investigation to study the combined effect of the two thermal performance-enhancement mechanisms. To this end, we conducted a set of experiments to determine convective heat transfer rates by impinging an array of jets onto thin metal foams attached on a uniformly heated smooth aluminum plate simulating a high heat-dissipating chip. The metal foams used were high porosity aluminum foams (ε∼0.94–0.96) with pore densities of 5 ppi, 10 ppi and 20 ppi (ppi: pores per inch) with thicknesses of 19 mm, 12.7 mm and 6.35 mm, respectively. With the jet-to-foam distance (z/d) set to zero, we conducted experiments with values of jet-to-jet spacing (x/d = y/d) of 2, 3 and 5. The jet plate featured an array of 5 × 5 cylindrical jet-issuing nozzles. The normalized jet-to-jet distance was varied by changing the jet diameter and keeping the jet center-to-center distance constant. Steady state heat transfer and pressure drop experiments were carried out for Reynolds number (based on jet diameter) ranging from 2500 to 10000. We have found that array impingement on thin foams leads to a significant enhancement in heat transfer compared to normal impingement over smooth surfaces. The gain in heat transfer was greatest for the 20 ppi foam (∼2.3 to 2.8 times that for the plain surface smooth target). However, this enhancement came at a significant increase of about 2.85 times in the plenum static pressure. With the pressure drop penalty taken into consideration, the x/d = 3 jet plate for the 20 ppi foam and x/d = 2 jet plate for the 10 ppi foam were found to be the most efficient cooling designs amongst the 18 cooling designs investigated in the present study.
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Ohmi, K., K. Sakaguchi, K. Yanagita, H. Kurisu, H. Suzuki, and T. Yonehara. "Water Jet Splitting of Thin Porous Si for ELTRAN." In 1999 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1999. http://dx.doi.org/10.7567/ssdm.1999.b-10-2.

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Ikoma, Yoshifumi, Kenta Ono, Mutsunori Uenuma, Tomohiko Ogata, and Teruaki Motooka. "New approach to formation of nanopore on SOI: SiC/Si heteroepitaxial growth by supersonic jet CVD." In Sixth International Conference on Thin Film Physics and Applications. SPIE, 2008. http://dx.doi.org/10.1117/12.792771.

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Roger, Michel, and Stella Serafini. "Interaction Noise from a Thin Annulus in a Circular Jet." In 11th AIAA/CEAS Aeroacoustics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-2958.

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Maines, Brant, Brian Smith, David Merrill, Seyed Saddoughi, and Hugo Gonzalez. "Synthetic Jet Flow Separation Control for Thin Wing Fighter Aircraft." In 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-885.

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Gubanov, D. A., V. I. Zapryagaev, N. P. Kiselev, and S. G. Kundasev. "Aeroacoustic interaction in high-velocity jet with a thin obstacle." In INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5065296.

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Loveridge, Ronald C. "CO2 jet spray cleaning of IR thin-film-coated optics." In Critical Review Collection, edited by Ric P. Shimshock. SPIE, 1992. http://dx.doi.org/10.1117/12.58695.

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Звіти організацій з теми "Thin jet"

1

Wang, Qi. Modeling of Nonisothermal Viscoelastic Slender Jet and Thin Sheet Flows. Fort Belvoir, VA: Defense Technical Information Center, June 1992. http://dx.doi.org/10.21236/ada295422.

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Ayyadurai, Mary, and Thomas Reitz. Aersol Jet Deposition of Geramic Thin Films for Electromechanical Applications. Fort Belvoir, VA: Defense Technical Information Center, March 2012. http://dx.doi.org/10.21236/ada559584.

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Woods, L., and P. Meyers. Atmospheric Pressure Chemical Vapor Deposition and Jet Vapor Deposition of CdTe for High Efficiency Thin Film PV Devices: Final Technical Report, 26 January 2000 - 15 August 2002. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/15002205.

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Wibowo, Johannes, and Jamie López-Soto. Field Jet Erosion Tests on Benbrook Dam, Texas. Engineer Research and Development Center (U.S.), December 2021. http://dx.doi.org/10.21079/11681/42545.

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This report summarizes the results of eight field Jet Erosion Tests (JETs) performed on Benbrook Dam, TX. The results from these tests will be used by the U.S. Army Corps of Engineers, Fort Worth District, in assessments of the erosion resistance of the Benbrook Dam with regards to possible overtopping by extreme flooding. The JETs were performed at four different locations, i.e., two locations at the lowest crest elevation and two locations at the mid-slope face of the downstream embankment. Variations in estimated critical hydraulic shear stress and erosion rate values may have been caused by differences in soil composition, i.e., when the material changed from silt/sand to clay. The resulting values of the Erodibility Coefficient, Kd, and Critical Stress, τc, are very useful information in assessing the stability of Benbrook Dam during an overtopping event. Because of the observed natural variability of the materials, combining the erosion parameters presented in this report with the drilling logs and local geology will be imperative for assessing erosion-related failure modes of Benbrook Dam.
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Saul, Grace, Andrea Melnikas, Sajeda Amin, Sarah Engebretsen, Aissa Diarra, and Chaibou Saadou. More Than Brides Alliance (MTBA): Mariage n’est pas un jeu d’enfat, Rapport de référence Niger. Population Council, 2017. http://dx.doi.org/10.31899/pgy8.1024.

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Melnikas, Andrea, Sajeda Amin, Sarah Engebretsen, and Mouhamadou Gueye. More Than Brides Alliance (MTBA): Mariage n’est pas un jeu d’enfat, Rapport de référence Mali. Population Council, 2017. http://dx.doi.org/10.31899/pgy8.1023.

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Guillian, Eugene Hall. Top quark decay kinematics in fully reconstructed top anti-top events in the electron or muon + E($T$) + greater than or equal to four jet decay. Office of Scientific and Technical Information (OSTI), January 1999. http://dx.doi.org/10.2172/1421509.

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8

BARKHATOV, NIKOLAY, and SERGEY REVUNOV. A software-computational neural network tool for predicting the electromagnetic state of the polar magnetosphere, taking into account the process that simulates its slow loading by the kinetic energy of the solar wind. SIB-Expertise, December 2021. http://dx.doi.org/10.12731/er0519.07122021.

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The auroral activity indices AU, AL, AE, introduced into geophysics at the beginning of the space era, although they have certain drawbacks, are still widely used to monitor geomagnetic activity at high latitudes. The AU index reflects the intensity of the eastern electric jet, while the AL index is determined by the intensity of the western electric jet. There are many regression relationships linking the indices of magnetic activity with a wide range of phenomena observed in the Earth's magnetosphere and atmosphere. These relationships determine the importance of monitoring and predicting geomagnetic activity for research in various areas of solar-terrestrial physics. The most dramatic phenomena in the magnetosphere and high-latitude ionosphere occur during periods of magnetospheric substorms, a sensitive indicator of which is the time variation and value of the AL index. Currently, AL index forecasting is carried out by various methods using both dynamic systems and artificial intelligence. Forecasting is based on the close relationship between the state of the magnetosphere and the parameters of the solar wind and the interplanetary magnetic field (IMF). This application proposes an algorithm for describing the process of substorm formation using an instrument in the form of an Elman-type ANN by reconstructing the AL index using the dynamics of the new integral parameter we introduced. The use of an integral parameter at the input of the ANN makes it possible to simulate the structure and intellectual properties of the biological nervous system, since in this way an additional realization of the memory of the prehistory of the modeled process is provided.
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Ptohos, Fotios K. Measurement of the $t \bar{t}$ production cross-section using heavy flavor tags in $W^{+}$ greater than three jet events in $p \bar{p}$ collisions at $S^{(1/2)}$ = 1.8-TeV. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/1421688.

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Gamboa-Estrada, Fredy, and Jose Vicente Romero. Modelling CDS Volatility at Different Tenures: An Application for Latin-American Countries. Banco de la República de Colombia, May 2022. http://dx.doi.org/10.32468/be.1199.

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Assessing the dynamics of risk premium measures and its relationship with macroeconomic fundamentals is important for both macroeconomic policymakers and market practitioners. This paper analyzes the main determinants of CDS in Latin-America at different tenures, focusing on their volatility. Using a component GARCH model, we decompose volatility between permanent and transitory components. We find that the permanent component of CDS volatility in all tenors was higher and more persistent in the global financial crisis than during the recent COVID-19 shock. JEL Classification: C22, C58, G01, G15. Keywords: Credit default swaps (CDS), CDS in Latin-American countries, sovereign risk, volatility, crisis, component GARCH models
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