Готові списки джерел за темами / Thick jet

Добірка наукової літератури з теми "Thick jet"

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

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Статті в журналах з теми "Thick jet"

1

Nishikawa, Chihiro, Naohide Mizukuchi, Akihiko Tomie, Keita Shimada, Masayoshi Mizutani, and Tsunemoto Kuriyagawa. "Characteristics of Thick Film Deposition in Powder Jet Machining." International Journal of Automation Technology 7, no. 6 (November 5, 2013): 630–37. http://dx.doi.org/10.20965/ijat.2013.p0630.

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Powder jet machining can be used for both material removal (abrasive jet machining) and material deposition processes (powder jet deposition) by changing the powder spray conditions. The transition from the removal to the deposition is investigated. The transition between these two phenomena, removal and deposition, is studied through simulating the impact phenomena of two alumina particles with a glass substrate using the Smoothed Particle Hydrodynamics (SPH) method in this study. Crystalline structures of an alumina film created were observed with a Transmission Electron Microscope (TEM). Observation indicates that a thick multicrystalline film is created when the blasted particles are monocrystalline alumina. It is also concluded that fractures within the particle material are necessary for the deposition process, and that fragments less than 100 nm in size contribute to the deposition of the thick films.
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2

Bauman, C., S. Pemberton, and P. F. Peterson. "Single-jet experiments for HIF thick-liquid chambers." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 464, no. 1-3 (May 2001): 400–403. http://dx.doi.org/10.1016/s0168-9002(01)00075-4.

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3

Cheng, Xiao Min, Lin Zhou, Liang Wang, and Gen Zhou. "The Experiment Study of Water Jet Incremental Sheet Metal Forming." Advanced Materials Research 230-232 (May 2011): 1010–13. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.1010.

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For the manufacture of panel parts, incremental sheet metal forming is significant in reality. This study put forward a method of incremental sheet metal forming: High-handed water jet with constant pressure and speed that caused by high pressure system acts on sheet metal and makes it out of shape, following transmutation superposition the requisite parts can be made. Based on this theory, a system of incremental sheet metal forming by using water jet is designed. At the same time, a forming experiment device is developed which is used to test the influence of water jet pressure, sheet metal thick, target distance to forming result. Finally, the optimized technological parameters of forming will be obtained. Within the work range, the higher pressure of water jet is, the more obvious forming result will be, and a great target distance will make forming result worse, besides sheet metal thick can make a difference of it. If sheet metal thick is invariable, there is interaction among pressure, target distance and feed velocity, so they influence forming result together.
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4

Castangia, P., G. Surcis, A. Tarchi, A. Caccianiga, P. Severgnini, and R. Della Ceca. "Water masers in Compton-thick AGN." Astronomy & Astrophysics 629 (August 29, 2019): A25. http://dx.doi.org/10.1051/0004-6361/201935421.

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Aims. Investigations of H2O maser galaxies at X-ray energies reveal that most active galactic nuclei (AGN) associated with water masers are characterized by high levels of absorption. With the aim of finding new maser sources for possible interferometric follow-ups, we have searched for water maser emission in a well-defined sample of heavily absorbed AGN (NH > 1023 cm−2), including Compton-thick (CT) sources. Methods. Previous surveys already searched for 22 GHz water maser emission in all the galaxies in this sample. With the goal of providing a detection or a stringent upper limit on the H2O luminosity, we reobserved some of the non-detected sources with the Green Bank Telescope. A new luminous H2O maser (LH2O ∼ 200 L⊙) was detected in the mid-IR-bright Seyfert 2 galaxy IRAS 15480−0344 and then followed-up with the Very Long Baseline Array. In order to shed light on the origin of the maser (jet, outflow, or disk), we recently observed the radio continuum emission in IRAS 15480-0344 with the European VLBI network (EVN) at 1.7 and 5.0 GHz. Results. With the newly discovered megamaser in IRAS 15480−0344 revealing a narrow (∼0.6 km s−1) and a broad (∼90 km s−1) component, the maser detection rate of the CT AGN sample is 50% (18/36), which is one of the highest ever found in maser surveys. The EVN maps show two bright sources (labeled SW and NE) in the nuclear region of IRAS 15480−0344, which we interpret as jet knots tracing regions where the radio plasma impacts dense molecular clouds. The narrow maser feature is approximately at the center of the imaginary line connecting the two continuum sources, likely pinpointing the core, and might be associated with the accretion disk or a nuclear outflow. The location of the broad maser feature, instead, coincides with source NE, suggesting that the maser emission might be produced by a jet-cloud interaction, as it was proposed for NGC 1068 and Mrk 348.
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Ezhova, Ekaterina, Claudia Cenedese, and Luca Brandt. "Interaction between a Vertical Turbulent Jet and a Thermocline." Journal of Physical Oceanography 46, no. 11 (November 2016): 3415–37. http://dx.doi.org/10.1175/jpo-d-16-0035.1.

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AbstractThe behavior of an axisymmetric vertical turbulent jet in an unconfined stratified environment is studied by means of well-resolved, large-eddy simulations. The stratification is two uniform layers separated by a thermocline. This study considers two cases: when the thermocline thickness is small and on the order of the jet diameter at the thermocline entrance. The Froude number of the jet at the thermocline varies from 0.6 to 1.9, corresponding to the class of weak fountains. The mean jet penetration, stratified turbulent entrainment, jet oscillations, and the generation of internal waves are examined. The mean jet penetration is predicted well by a simple model based on the conservation of the source energy in the thermocline. The entrainment coefficient for the thin thermocline is consistent with the theoretical model for a two-layer stratification with a sharp interface, while for the thick thermocline entrainment is larger at low Froude numbers. The data reveal the presence of a secondary horizontal flow in the upper part of the thick thermocline, resulting in the entrainment of fluid from the thermocline rather than from the upper stratification layer. The spectra of the jet oscillations in the thermocline display two peaks, at the same frequencies for both stratifications at fixed Froude number. For the thick thermocline, internal waves are generated only at the lower frequency, since the higher peak exceeds the maximal buoyancy frequency. For the thin thermocline, conversely, the spectra of the internal waves show the two peaks at low Froude numbers, whereas only one peak at the lower frequency is observed at higher Froude numbers.
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6

Kornilov, Vladimir, and Andrey Boiko. "Simulation of Thick Turbulent Boundary Layer Via Jet Array." Siberian Journal of Physics 8, no. 1 (March 1, 2013): 78–91. http://dx.doi.org/10.54362/1818-7919-2013-8-1-78-91.

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Experimental studies directed to qualify the potential of simulation of an equilibrium (by Klauser) thick incompressible turbulent boundary layer on a flat plate of limited length with the help of an array of jets were carried out. It is shown that in the range of flow parameters and the mass flow rates of blowing under consideration the air jets through some rows of the holes with different diameter increase substantially the thickness of turbulent boundary layer within a comparatively small distance of the blowing region. In most cases studied, the mean and fluctuating characteristics of the boundary layer reach values specific for naturally developed turbulent boundary layer at downstream distances of about 22 thickness of regular boundary layer. Mean velocity profiles in the logarithmic part of the artificially thickened boundary layer are described by the law-of-the-wall variables with a good accuracy and generalized by a single dependence with the help of empiric velocity scale for the outer region. Disturbance characteristics of the flow are also close to those in the canonic boundary layer. However, as the blowing intensity grows, a systematic deviation of the disturbance streamwise velocity from the canonic values is observed, which indicates the limitation of the present approach and points out the need of further refinement of the method of simulation under consideration
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7

Wu, Pey Shey, Chia Yu Hsieh, and Shen Ta Tsai. "Heat Transfer Enhancement of Jet Impingement on a Flat Plate Attached by a Porous Medium with a Center Cavity." Defect and Diffusion Forum 297-301 (April 2010): 427–32. http://dx.doi.org/10.4028/www.scientific.net/ddf.297-301.427.

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Jet impingement heat transfer on a target plate covered with a thick porous layer with or without a cylindrical center cavity is experimentally investigated using the transient liquid crystal technique. Based on the results of jet impingement on a bare flat plate, heat transfer enhancement due to the attachment of porous medium is assessed. The varying parameters in the experiments include the nozzle-to-plate distance, jet Reynolds number, jet-to-cavity diameter ratio, and the cavity depth. Results of Nusselt number distribution, stagnation-zone Nusselt number, and averaged Nusselt number over a region of 3 times the hole diameter are documented. Experimental results show that the attachment of the porous layer with a center cavity can either hamper, or effectively enhance the jet impingement heat transfer over a flat plate. The maximum enhancement occurs at jet Reynolds number of 12400 when the cavity is a through hole and the cavity has the same diameter as the jet. The stagnation-zone Nusselt number increases 58.3% and the averaged Nusselt number increases 77.5% at the maximum enhancement condition. On the other hand, the addition of the thick porous layer without a center cavity gave rise to severe adverse effect on jet impingement heat transfer.
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8

Niwa, Naotake, Atsushi Yumoto, Takahisa Yamamoto, Fujio Hiroki, and Ichiro Shiota. "Coating with Supersonic Free-Jet PVD." Materials Science Forum 561-565 (October 2007): 981–84. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.981.

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Recently, requirements for structural materials become increasingly severe. A coating is one of the most promising methods to achieve the requirements. However, conventional coating processes generally have technical problems. We apply Supersonic Free-Jet PVD (SFJ-PVD) to coating. The SFJ-PVD is a technique to deposit nanoparticles with supersonic gas flow and to form a thick coating film without a crack or a void. This method is composed of “gas evaporation” and “vacuum deposition”. In a gas evaporation chamber, a source material is evaporated to form nanoparticles in an inert gas atmosphere. The nanoparticles are then carried to a substrate in a deposition chamber with an inert gas flow through a transfer pipe. The gas flow is generated by the pressure difference between the chambers and accelerated through a supersonic nozzle. With SFJPVD, We obtain uniform several hundreds micron meter-thick, high-density coatings.
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9

Wu, Pey Shey, Yi Wen Lo, and Fong Chia Cheng. "Numerical Investigation of Impingement Heat Transfer Enhancement on a Flat Plate with an Attached Porous Medium." Defect and Diffusion Forum 312-315 (April 2011): 477–82. http://dx.doi.org/10.4028/www.scientific.net/ddf.312-315.477.

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The enhancement of impingement heat transfer on a flat plate covered with a thick layer of porous medium with or without a center hole was numerically investigated. The renormalization group turbulence model is selected for the fluid region while Forchheimer extended Darcy’s model is used for porous region. The numerical models were justified by comparisons with available experimental data. Computational results show that an attached porous medium with a center hole can effectively enhance jet impingement heat transfer while an attached thick porous layer without a center hole has detrimental effect. The physics of these results are supported and well explained by the detailed flow patterns. The most influential parameters in this heat transfer process include the jet Reynolds number and the center hole geometry (hole depth and jet-to-hole diameter ratio). A good hole geometry should well trap the jet and direct the coolant along the heated plate.
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10

Cobb, W. K., J. F. C. Wardle, and D. H. Roberts. "Calculations of the Linear Polarization of Inhomogeneous Relativistic Jets." Symposium - International Astronomical Union 129 (1988): 153–54. http://dx.doi.org/10.1017/s0074180900134333.

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We have performed exact numerical calculations of the Stokes parameters I, Q, and U for optically and Faraday thick inhomogeneous relativistic jets. We consider how changes in Faraday depth, as well as in the observer-jet geometry, change the resolved and unresolved properties of the jet.
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Дисертації з теми "Thick jet"

1

Могаддам, Али Хасан. "Моделирование удержания топлива внутри контейнмента во время тяжелых аварий на АЭС". Doctoral thesis, 2009. https://ela.kpi.ua/handle/123456789/1121.

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Книги з теми "Thick jet"

1

Tschernitz, John L. Empirical equations for estimating drying times of thick rotary-cut veneer in press and jet dryers. Madison, WI: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, 1985.

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2

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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3

Taillant, Jorge Daniel. Meltdown. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190080327.001.0001.

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Climate change is happening all around us, and one of the telltale signs is melting glaciers. We hear about it almost daily, pieces of ice the size of continents breaking off of Antarctica or the polar arctic ice breaking up and disappearing more and more quickly opening up navigational routes once unavailable due to thick winter ice cover. Will melting ice and glaciers so far away change our lives? Meltdown takes us deep into the cryosphere, the Earth’s frozen environment and picks apart why glacier melt caused by climate change will alter (and already is altering) the way we live around the world. From rising seas that will destroy property and flood millions of acres of coastal lands, displacing hundreds of millions of people, to rising global temperatures due to reflectivity changes of the Earth because of decreased white glacier surface area, to colossal water supply changes from glacier runoff reduction, to deadly glacier tsunamis caused by the structural weakening of ice on high mountaintops that will take out entire communities living in glacier runoff basins, to escaping methane gas from thawing frozen permafrost grounds, and changing ocean temperatures that affect jet streams and ocean water currents around the planet, glacier melt is altering our global ecosystems in ways that will drastically change our everyday lives. Meltdown takes us into the little-known periglacial environment, a world of invisible subterranean glaciers in our coldest mountain ranges that will survive the initial impacts of climate change but that are also ultimately at risk due to a warming climate. By examining the dynamics of melting glaciers, Meltdown helps us grasp the impacts of a massive geological era shift occurring right before our eyes.
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4

Judaken, Jonathan. Race and Existentialism. Edited by Naomi Zack. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780190236953.013.58.

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Race is central to the development of existentialism and its key axioms and understanding this broadens the existential map beyond Europe and its philosophical traditions. Norman Mailer, James Baldwin, Jean-Paul Sartre, Frantz Fanon, and Albert Memmi developed their existentialist critiques of race via a set of exchanges among themselves. Their body of work explains how a Jew like Mailer or Memmi comes to think of himself as a “white Negro” or an “African Arab.” It also enables us to consider whether race is an idea or a set of institutional and structural arrangements and what the ramifications of this debate are for how existentialists understand racism.
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Частини книг з теми "Thick jet"

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Alenius, Emma. "Sound Generating Flow Structures in a Thick Orifice Plate Jet." In Progress in Turbulence V, 201–4. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01860-7_32.

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2

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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3

Yoshikawa, Shigeru. "Vortices on Sound Generation and Dissipation in Musical Flue Instruments." In Vortex Dynamics Theories and Applications. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91258.

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Musical flue instruments such as the pipe organ and flute mainly consist of the acoustic pipe resonance and the jet impinging against the pipe edge. The edge tone is used to be considered as the energy source coupling to the pipe resonance. However, jet-drive models describing the complex jet/pipe interaction were proposed in the late 1960s. Such models were more developed and then improved to the discrete-vortex model and vortex-layer model by introducing fluid-dynamical viewpoint, particularly vortex sound theory on acoustic energy generation and dissipation. Generally, the discrete-vortex model is well applied to thick jets, while the jet-drive model and the vortex-layer model are valid to thin jets used in most flue instruments. The acoustically induced vortex (acoustic vortex) is observed near the amplitude saturation with the aid of flow visualization and is regarded as the final sound dissipation agent. On the other hand, vortex layers consisting of very small vortices along both sides of the jet are visualized by the phase-locked PIV and considered to generate the acceleration unbalance between both vortex layers that induces the jet wavy motion coupled with the pipe resonance. Vortices from the jet visualized by direct numerical simulations are briefly discussed.
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4

Toal, Gerard. "Geopolitics Thick and Thin." In Near Abroad. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190253301.003.0014.

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On November 24, 2015, a Turkish F-16 fighter jet shot down a Russian Sukhoi Su-24M aircraft on the Syria-Turkey border. For seventeen seconds the Russian aircraft crossed the southern tip of a salient of Turkish territory that Syria claimed rightfully belonged to it. Two Russians ejected from the plane over Syria. A local Turkmen militia, commanded by a Turkish citizen, fired at the aviators, killing one. A second Russian serviceman was killed during a rescue mission to save the surviving aviator. The incident, recorded on radar systems by many countries and partially captured on video camera, was the first time since the Korean War that a North Atlantic Treaty Organization (NATO) country’s fighter jet destroyed a Soviet/Russian Air Force aircraft. Fortunately the event did not escalate into a full-blown NATO Russia crisis, although with tensions high over the Ukraine crisis and two authoritarian leaders at loggerheads, it could well have done so. There were background accusations. Turkish president Erdoğan was aggrieved that Russia was bombing co-ethnic kin in its southern near abroad while aiding Kurdish separatists, while Russian president Putin saw Turkey as an accomplice of international terrorists. Entwined territorial and terrorist anxieties, as well as near abroad insecurities, preoccupied both men. Had Russia responded with force against Turkey, this could have triggered Article V of NATO’s Washington Treaty, and NATO members would have faced the prospect of war with Russia over a tiny piece of territory in the Middle East most knew nothing about. Relations between the NATO alliance and Russia are now at their lowest point since the collapse of the Soviet Union. Airspace violations, incidents at sea, military training exercises, and hybrid war hysteria have kept tensions high. After Crimea, NATO moved to strengthen its capacity to respond to perceived Russian encroachment on the Baltic countries. The Obama administration’s European Reassurance Initiative was launched in June 2014 with a $1 billion budget for training and temporary rotations. In a speech in Riga in September 2014, President Obama declared: “We’ll be here for Estonia.
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5

Siddiqui, Tauseef Uddin, and Mukul Shukla. "Modeling and Optimization of Abrasive Water Jet Cutting of Kevlar Fiber-Reinforced Polymer Composites." In Computational Methods for Optimizing Manufacturing Technology, 262–86. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0128-4.ch011.

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This chapter presents a detailed study of abrasive water jet (AWJ) cutting of thin and thick Kevlar fiber-reinforced polymer (FRP) composites used in transport aircraft and anti-ballistic applications. Kevlar composites are considered to be very challenging to machine using traditional techniques. Most of the research conducted in the area of AWJ cutting has been limited to single response optimization. However, in real life machining, the performance of a process/product demands multi-objective optimization (MOO). No work has been reported till now using different MOO techniques for AWJ cutting of Kevlar FRP composites. Experimental modeling of depth of cut and various design of experiments based single and multi-objective optimization studies are presented here. Statistical analysis of variance has been performed to rank the different process parameters and estimate their effects on various AWJ cut kerf quality characteristics. The studies conducted in this chapter are likely to prove beneficial to the AWJ community in performing modeling and simultaneous optimization of multiple quality characteristics.
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6

Graham, Alan. "Late Cretaceous through Early Eocene North American Vegetational History: 70-50 Ma." In Late Cretaceous and Cenozoic History of North American Vegetation (North of Mexico). Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195113426.003.0008.

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At the end of the Cretaceous the Appalachian Mountains had undergone 180 m.y. of erosion since their principal uplift in the Middle Pennsylvanian through the Late Permian (300-250 Ma), but they were higher and more rugged than at present and provided a somewhat more diverse vertically zoned array of habitats. In contrast, the Rocky Mountains were only ~1 km above sea level at 65 Ma; the Coast Ranges, Sierra Nevada, and Cascade Mountains would not attain substantial heights until late in the Tertiary. Computer models in the NM mode, which simulate conditions in western North America in the Late Cretaceous, show a nearly continuous westerly jet stream with relatively small amplitude between the troughs (lowpressure systems) and ridges (high-pressure systems). The present north-south seasonal meandering of the jet stream was also less. Thus, in the models precipitation and temperatures were more uniform throughout the year and there was less regional differentiation in climate. CO2 concentrations during the Cretaceous are estimated to have been 4-8 times to 10-12 times higher than at present. With a 2-5°C warming for each doubling of CO2, this provides part of the explanation for the higher MAT documented for the Late Cretaceous and Early Tertiary. High CO2 concentrations near the end of the Cretaceous may have been a holdover from earlier intense volcanism in the South Pacific that began to subside at ~ 100 Ma. The term epeirogeny refers to vertical motions of the Earth’s crust, and these movements affect the ocean floor, as well as the continents. There was a 50% increase in the production of ocean crust in the Middle Cretaceous compared to earlier times, as represented by the early Aptian Ontong Java Plateau, the Earth’s largest oceanic plateau, now submerged over 2 km off the Solomon Islands. A sense of the magnitude of this structure can be gained by comparing its volume with that of the surface-exposed Deccan Traps of India (66 Ma). The latter are ~1 km thick and have a volume of 1.5 x 106 km3. The Ontong Java Plateau is ~36 km thick and has a volume of 50 x 106 km3.
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7

Kollmann, Karl, Calum E. Douglas, and S. Can Gülen. "Turbojet Engines." In Turbo/Supercharger Compressors and Turbines for Aircraft Propulsion in WWII: Theory, History and Practice—Guidance from the Past for Modern Engineers and Students, 283–314. ASME, 2021. http://dx.doi.org/10.1115/1.884676_ch11.

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Dr. Kollmann (and his colleagues) were keenly aware that the jet engine was the powerplant of future. They clearly stated this when interrogated by the British intelligence agents in June 1945 (from Report POW/ENG/6, Evaluation Report No. 539, 16 Apr 46). They thought that the piston engine would still be used for some time to come for transport purposes, but they did not think that it had much application in war time. They anticipated that the jet engines would constitute the bulk of the fleet, to the tune of 60-70%. However, they did not foresee a full demise of piston engines.
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8

Del Genio, Anthony D. "GCM Simulations of Cirrus for Climate Studies." In Cirrus. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195130720.003.0019.

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One of the great challenges in predicting the rate and geographical pattern of climate change is to faithfully represent the feedback effects of various cloud types that arise via different mechanisms in different parts of the atmosphere. Cirrus clouds are a particularly uncertain component of general circulation model (GCM) simulations of long-term climate change for a variety of reasons, as detailed below. First, cirrus encompass a wide range of optical thicknesses and altitudes. At one extreme are the thin tropopause cirrus that barely affect the short-wave albedo while radiating to space at very cold temperatures, producing a net positive effect on the planetary radiation balance and causing local upper troposphere warming, thus stabilizing the lapse rate. At the other extreme are thick cumulus anvil cirrus whose bases descend to the freezing level; these clouds produce significant but opposing short-wave and long-wave effects on the planetary energy balance while cooling the surface via their reflection of sunlight. In fact, satellite climatologies show a continuum of optical thicknesses between these two extremes (Rossow and Schiffer 1991). In a climate change, the net effect of cirrus might either be a positive or a negative feedback, depending on the sign and magnitude of the cloud cover change in each cloud-type category and the direction and extent of changes in their optical properties (see Stephens et al. 1990). Second, the dynamic processes that create cirrus are poorly resolved and different in different parts of the globe. In the tropics, small-scale convective transport of water from the planetary boundary layer to the upper troposphere is the immediate source of a significant fraction of the condensate in mesoscale cirrus anvils (see Gamache and Houze 1983), and ultimately the source of much of the water vapor that condenses out in large-scale uplift to form thinner cirrus. However, many observed thin cirrus cannot directly be identified with a convective source, suggesting that in situ upper troposphere dynamics and regeneration processes within cirrus (see Starr and Cox 1985) are important. In mid-latitudes, although summertime continental convection is a source of cirrus, in general cirrus is associated with mesoscale frontal circulations in synoptic-scale baroclinic waves and jet streaks (see Starr and Wylie 1990; Mace et al. 1995).
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9

Person, Katarzyna. "“I Sometimes Think That I Grew Up on a Different Planet”:." In “Who Is A Jew?", 257–66. Purdue University Press, 2014. http://dx.doi.org/10.2307/j.ctt6wq61q.20.

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Pournelle, Jerry. "The Ten Best Tools and Peripherals You Didn’t Know About." In 1001 Computer Words You Need to Know. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195167757.003.0016.

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1. Flat-panel monitors—OK, you not only know about flatpanel monitors, you’ve longed for one for years. But if you haven’t checked the prices recently, check again—this may be the time to buy. These monitors are now brighter, sharper, and clearer than ever. A 17-, 19-, even a 20-inch display has become more affordable, especially as part of a new computer system. With no border inside the frame, you see much more display area than with a CRT that boasts the same screen size. Some can even be rotated between portrait and landscape views. In the bargain, flat-panel monitors weigh less, emit fewer UV rays, use less electricity, and generate far less heat.They really are cool! 2. Multifunction printers—MFPs (multi-function printers), or all-in-ones, actually do do it all: print, copy, scan, and (usually) fax. Conventional wisdom cautions against hardware that performs more than one function, on the theory that if one part fails the whole thing goes south. But modern MFPs are solid and reliable. And they’re vastly more simple to set up and use than four separate machines (think software, wires, and space). Laser MFPs usually print, copy, and fax in black and white but scan in color. Ink-jet models do everything in color. Ink jets are initially less expensive, but if you factor in the cost of rapidly consumed color cartridges, laser is cheaper in the long run— especially if your primary output is text. 3. Photo printers—On the other hand, specialized ink-jet photo printers, which make it a breeze to print color images from your digital camera, are growing more and more popular. Some of them are flexible enough to print directly—not only from digital cameras but from memory cards and wireless devices, like PDAs and camera phones. Others connect through your PC. Some even allow you to print labels and photos onto special CDs! But primarily, you are freed to print stunningly clear, professional-looking, borderless pictures without leaving home. See brands from, among others, Epson, Canon, and Hewlett Packard.
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Тези доповідей конференцій з теми "Thick jet"

1

Dippold, Vance, Serhat Hosder, and Joseph Schetz. "Analysis of Jet-Wing Distributed Propulsion from Thick Wing Trailing Edges." In 42nd AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-1205.

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2

Kim, Young-Il, and Cha-Soo Jun. "Hole-Making on a Bent Thick Plate." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84274.

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A method for cutting non-circular holes on a bent thick plate is proposed. Generally, in order to cut holes on large plates, a special-purpose 5-axis machine is needed. However, such a machine is unavailable in most machine shops. This paper provides a description of a method that utilizes a general-purpose 5-axis water-jet machine in place of the special-purpose machine: First, the bent piece is transformed into a flat plate, where the shape of the holes is reconstructed by considering deformation during bending. Then, after 5-axis NC data is generated, the holes on the flat plate are cut using the 5-axis water-jet machine. In the final step, the desired shape of the piece is obtained by bending the plate with its newly-cut holes. Some illustrations are provided in order to show the validity of the proposed method.
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3

Georges, William, Jason Loiseau, Andrew Higgins, Troy Tyler, and Joerg Zimmermann. "Influence of thick surface coatings on jet formation in flyer plate impacts." In SHOCK COMPRESSION OF CONDENSED MATTER - 2015: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. Author(s), 2017. http://dx.doi.org/10.1063/1.4971583.

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4

Shin, Jeong-Heon, Tomer Rozenfeld, Ashwin Vutha, Yingying Wang, Gennady Ziskind, and Yoav Peles. "Local Heat Transfer Coefficients Measurement Under Micro Jet Impinging Using Nitrogen Gas (N2)." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7215.

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Experimental and simulation studies were performed to reveal local heat transfer coefficients under jet impinging in micro domain with Nitrogen gas. The experimental device was made of a 500 μm thick Pyrex and 400 μm thick silicon wafers. On the Pyrex wafer, four 100 nm thick resistance temperature detector (RTD) thermistors and a heater were fabricated from titanium. Jet orifices were etched by deep reactive ion etching (DRIE) on a silicon wafer, which was attached to the Pyrex wafer through a vinyl sticker (250 μm thick). A 1.9 mm × 14.8 mm × 250 μm micro channel was formed by laser drilling into the sticker. Varying flow rates of Nitrogen gas and heat fluxes of the heater, temperatures of the four thermistors were collected and local heat transfer coefficients were inferred enabling to divulge the jet impinging cooling characteristics. Initial simulations were used to complement experiments and to obtain detailed flow patterns of the jet, temperature distribution on the heater area, and fluid temperature distribution.
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5

Rajendran, Sucharitha, Milind A. Jog, and Raj M. Manglik. "Numerical Analysis of Liquid Breakup and Drop Generation in Low Velocity Jets." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51750.

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Biological sprays and aerodynamically assisted bio-jets are increasingly employed in treatment of living cells and organisms for applications in regenerative medicine, tissue repair, and advanced therapeutics. The liquid used in biological applications cover a wide range of viscosities and surface tensions. Determining conditions that achieve steady and uniform drop distribution for a range of properties of the liquid jet is critical in advancing biological applications. In this study, numerical simulations of jet breakup are carried out using a modified volume of fluid (VOF) approach to capture the interface. The interplay of viscosity and surface tension is studied by varying liquid properties. Simulations show that a high viscosity jet stretches and elongates before a liquid segment detaches. Based on the thickness of the liquid thread connecting the detaching drop to the main liquid stream, two fundamentally different modes of liquid pinch off have been predicted: thick-thin and thin-thick. In the thick-thin mode, the liquid jet has a growing drop at its edge. As this drop grows in size, the liquid stream stretches till the drop is pinched off the liquid stream. In the other mode in addition to the pinch off of drops from the jet, ligaments of liquid break off. The change in the breakup mode is primarily governed by the relative magnitude of the viscous force compared to surface tension with high viscous force leading to thin-thick liquid stretching and pinch off. Thick-thin stretching is seen to produce slow moving satellite drops that merge backwards with the oncoming drop, while thin-thick stretching is noticed to result in faster satellite drops that merge forwards. On the other hand when surface tension force dominates, non-merging satellite drops are formed that move with a speed close to the primary drops.
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6

JIA, XIN, ZHENGXIANG HUANG, MENGWEN XU, JIANHAO DOU, MING XIA, QIANGQIANG XIAO, XUDONG ZU, and BIN MA. "Research on the Penetration Law of Jet to High-Speed Thick-Wall Ammunition." In 31st International Symposium on Ballistics. Lancaster, PA: DEStech Publications, Inc., 2019. http://dx.doi.org/10.12783/ballistics2019/33181.

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7

Nozaki, Tsutomu, Takashi Ochiai, and Tomonari Kai. "Experimental Study on Compound Swirl Jet." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45225.

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This paper concerns the fundamental study on the push-pull type ventilator, especially applied to the smoking table. In order to achieve more effective cleaning of the dirty air, a compound swirl jet, which consists of a round free jet having thick rim and a coaxial annular swirl jet was proposed by the authors. It was found that the compound flow is very useful for the push flow of the push-pull type ventilator selecting the suitable flow rate ratio of the annular swirl jet to the free jet. As a fundamental study on the compound swirl jet, the flow visualization was also carried out using the smoke method. At the same time, the mean velocity components were measured using the cobra Pitot tube. It was found from the results of these experiments that the unique flow structure by the interaction of two jets is created in the compound swirl jet choosing the adequate flow rate ratio, which is suitable for the push flow of the push-pull type ventilator.
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8

Chida, Itaru, Katsunori Shiihara, Kota Nomura, Rie Sumiya, and Naotaka Suganuma. "Decreasing Waste of Laser Cutting by Metal Fume Capturing With Water." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30337.

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Decommissioning of aged nuclear reactors is planned, and cutting technologies for thick structure are necessary to reduce storage space of radioactive wastes. Though thermal cutting technology is suitable for cutting thick materials, radioactive fume is one of the problems due to increase the environmental dose. A water jet-guided laser cutting technology is one of the solutions for cutting irradiated materials, because radioactive fume is confined in the water and doze level won’t be increased. However, this technology was developed for precision machining like dicing and slotting of silicon wafers, cutting thick materials by using this process is very diffcult. In this study, cutting technology for thick material with a water jet-guided laser was discussed. Phenomenon during cutting thick stainless steel was observed by using high speed camera and optimum conditions for both water jet and laser cutting were derived. Finally, 50mm thick stainless steel plate was successfully cut by using this technology.
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9

Amitay, M., V. Kibens, D. Parekh, and A. Glezer. "The dynamics of flow reattachment over a thick airfoil controlled by synthetic jet actuators." In 37th Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-1001.

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10

Hashish, Mohamed. "Abrasive-Waterjet Drilling of High Temperature Jet Engine Parts." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77365.

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An experimental investigation was performed to demonstrate the AWJ process capability for precision drilling of small diameter cooling holes in TBC-coated samples and full scale parts used in jet engines. All holes were drilled from the TBC side. Both qualitative and quantitative hole results issues were addressed. These include chipping of TBC, gouging inside the hole at the ceramic-metal interface, feathering at the exit side of the hole, tear drop shape, hole size and its consistency, overall drilling time, and potential systems productivity. It was observed that the AWJ produces high quality holes free from chipping or gouging. However, feathering may occur depending primarily on whether the substrate material is cast or rolled and can be substantially reduced or eliminated by adjusting the drilling parameters. It was also demonstrated that holes of about 0.025-ich can be drilled at 30 with less than 0.001-inch standard deviation. Air flow measurement results have also confirmed that less than 6% variation can be obtained from one set of holes (270 holes) to another. Drilling times below 10 seconds hole to hole were observed for drilling 0.060-inch thick metal substrates with 0.020-inch thick TBC thickness at 30 degrees. This time can be reduced to 3–4 seconds with improved systems. Although AWJ is still slower than laser, produced holes are of superior quality and do not need any additional processing. Future research efforts will focus on improving the drilling time.
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