Log in

Relevant bibliographies by topics / Jet Propulsion Laboratory / Journal articles

To see the other types of publications on this topic, follow the link: Jet Propulsion Laboratory.

Journal articles on the topic 'Jet Propulsion Laboratory'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Jet Propulsion Laboratory.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Goods, Daniel E. "Revelations at the Jet Propulsion Laboratory." Leonardo 38, no. 5 (2005): 376–81. http://dx.doi.org/10.1162/leon.2005.38.5.376.

Full text

Abstract:

The author's 2 years of developing installations for the Jet Propulsion Laboratory have led him to an appreciation of how similar his thinking and work process are to those of the laboratory's engineers and scientists. For both, certain ideas and processes at first appear crazy and impracticable, but vision and persistence bring them to realization. The three installations described in this article pertain to a future mission that, if successful, will locate a planet similar to Earth and once again change humanity's understanding of its position in the universe.

APA, Harvard, Vancouver, ISO, and other styles

2

Palca, Joseph. "Jet Propulsion Laboratory is considering its options." Nature 331, no. 6154 (1988): 295. http://dx.doi.org/10.1038/331295a0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Partma, Helmut W. "Cost Estimating at the Jet Propulsion Laboratory." Journal of Parametrics 5, no. 2 (1985): 23–36. http://dx.doi.org/10.1080/10157891.1985.10462650.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Fairley, RE, and M. Bush. "Software product assurance at the Jet Propulsion Laboratory." Information and Software Technology 32, no. 1 (1990): 11–17. http://dx.doi.org/10.1016/0950-5849(90)90040-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Gwynne, Peter. "Jet Propulsion Laboratory to lay off more than 500 employees." Physics World 37, no. 3 (2024): 12i. http://dx.doi.org/10.1088/2058-7058/37/03/14.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Perham, Arnold E., and Faustine L. Perham. "Looking to Mars for Mathematics Connections." Mathematics Teacher 104, no. 5 (2010): 344–49. http://dx.doi.org/10.5951/mt.104.5.0344.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Perham, Arnold E., and Faustine L. Perham. "Looking to Mars for Mathematics Connections." Mathematics Teacher 104, no. 5 (2010): 344–49. http://dx.doi.org/10.5951/mt.104.5.0344.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Madin, L. P. "Aspects of jet propulsion in salps." Canadian Journal of Zoology 68, no. 4 (1990): 765–77. http://dx.doi.org/10.1139/z90-111.

Full text

Abstract:

Several morphological and functional characteristics that affect the jet propulsion of salps are described, based on observations of living animals in situ and in the laboratory. A velocity profile of water flowing through the salp and its feeding net is determined from video frames, and velocities of the jet efflux are related to forward movement of the animal. Analysis of the size and spacing of vortices in the jet trail indicates that the theoretical augmentation of thrust from a pulsed jet may indeed affect the locomotory efficiency of salps. The external morphology of several species of s

APA, Harvard, Vancouver, ISO, and other styles

9

Wapman, Jonathan D., David C. Sternberg, Kevin Lo, Michael Wang, Laura Jones-Wilson, and Swati Mohan. "Jet Propulsion Laboratory Small Satellite Dynamics Testbed Planar Air-Bearing Propulsion System Characterization." Journal of Spacecraft and Rockets 58, no. 4 (2021): 954–71. http://dx.doi.org/10.2514/1.a34857.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

West, W. C., J. F. Whitacre, E. J. Brandon, and B. V. Ratnakumar. "Lithium micro-battery development at the Jet Propulsion Laboratory." IEEE Aerospace and Electronic Systems Magazine 16, no. 8 (2001): 31–33. http://dx.doi.org/10.1109/62.942217.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Petropoulos, Anastassios, Daniel Grebow, Drew Jones, et al. "GTOC9: Results from the Jet Propulsion Laboratory (team JPL)." Acta Futura, no. 11 (January 9, 2018): 25–35. https://doi.org/10.5281/zenodo.1139152.

Full text

Abstract:

The removal of 123 pieces of debris from the Sun-synchronous LEO environment is accomplished by a 10-spacecraft campaign wherein the spacecraft, flying in succession over an 8-yr period, rendezvous with a series of the debris objects, delivering a de-orbit package at each one before moving on to the next object by means of impulsive manoeuvres. This was the GTOC9 problem, as posed by the European Space Agency. The methods used by the Jet Propulsion Laboratory team are described, along with the winning solution found by the team. Methods include branch-and-bound searches that exploit the natura

APA, Harvard, Vancouver, ISO, and other styles

12

Gwynne, Peter. "NASA’s Jet Propulsion Lab announces further staff layoffs." Physics World 38, no. 1 (2025): 8ii. https://doi.org/10.1088/2058-7058/38/01/06.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Newhall, X. X., J. G. Williams, and E. M. Standish. "Planetary and lunar ephemerides, lunar laser ranging, and lunar physical librations." Symposium - International Astronomical Union 172 (1996): 37–44. http://dx.doi.org/10.1017/s0074180900127093.

Full text

Abstract:

The Jet Propulsion Laboratory (JPL) has recently produced a new integrated planetary and lunar ephemeris DE403/LE403. This ephemeris spans the interval JED 624912.5 (December 2, −3002, Julian) – JED 2817104.5 (November 14, 3000, Gregorian) and is an improvement on DE102 (Newhall et al., 1983) and DE200 (Standish, 1990). This integration carries the Cartesian states of the Sun, Moon, and planets, along with the three Euler angles describing the lunar physical librations.

APA, Harvard, Vancouver, ISO, and other styles

14

Holzman, Robert E. "Atoms to astronomy: Computer graphics at the Jet Propulsion Laboratory." Visual Computer 2, no. 3 (1986): 159–63. http://dx.doi.org/10.1007/bf01900326.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Halpern, David. "The NASA ocean data system at the Jet Propulsion Laboratory." Advances in Space Research 11, no. 3 (1991): 255–62. http://dx.doi.org/10.1016/0273-1177(91)90429-n.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Krueger, Paul S., Ali A. Moslemi, J. Tyler Nichols, Ian K. Bartol, and William J. Stewart. "Vortex Rings in Bio-Inspired and Biological Jet Propulsion." Advances in Science and Technology 58 (September 2008): 237–46. http://dx.doi.org/10.4028/www.scientific.net/ast.58.237.

Full text

Abstract:

Pulsed-jets are commonly used for aquatic propulsion, such as squid and jellyfish locomotion. The sudden ejection of a jet with each pulse engenders the formation of a vortex ring through the roll-up of the jet shear layer. If the pulse is too long, the vortex ring will stop forming and the remainder of the pulse is ejected as a trailing jet. Recent results from mechanical pulsedjets have demonstrated that vortex rings lead to thrust augmentation through the acceleration of additional ambient fluid. This benefit is most pronounced for short pulses without trailing jets. Simulating vehicle moti

APA, Harvard, Vancouver, ISO, and other styles

17

Gunapala, S. D., S. V. Bandara, J. K. Liu, et al. "Quantum well infrared photodetector research and development at Jet Propulsion Laboratory." Infrared Physics & Technology 42, no. 3-5 (2001): 267–82. http://dx.doi.org/10.1016/s1350-4495(01)00085-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Ratnakumar, B. V., A. I. Attia, and G. Halpert. "Sodiummetal chloride battery research at the Jet Propulsion Laboratory (JPL)." Journal of Power Sources 36, no. 3 (1991): 385–94. http://dx.doi.org/10.1016/0378-7753(91)87014-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Landel, Robert F. "A Two-Part Tale: The WLF Equation and Beyond Linear Viscoelasticity." Rubber Chemistry and Technology 79, no. 3 (2006): 381–401. http://dx.doi.org/10.5254/1.3547943.

Full text

Abstract:

Abstract In this description of my work, I will first share some behind-the-scenes events in the discovery of the WLF. Then, I'll indicate why and how going to the Caltech/Jet Propulsion Laboratory led to our investigations of, and some results for, both large deformation uniaxial and biaxial responses in rubbers.

APA, Harvard, Vancouver, ISO, and other styles

20

McDermid, I. Stuart, Sophie M. Godin, and T. Daniel Walsh. "Results from the Jet Propulsion Laboratory stratospheric ozone lidar during STOIC 1989." Journal of Geophysical Research 100, no. D5 (1995): 9263. http://dx.doi.org/10.1029/94jd02148.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Showstack, Randy. "Supreme Court Hears Privacy Case Between NASA and Jet Propulsion Laboratory Scientists." Eos, Transactions American Geophysical Union 91, no. 41 (2010): 371. http://dx.doi.org/10.1029/2010eo410002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Weisbin, C., and D. Perillard. "R & D Profile Jet Propulsion Laboratory Robotic Facilities and Associated Research." Robotica 9, no. 1 (1991): 7–21. http://dx.doi.org/10.1017/s0263574700015526.

Full text

Abstract:

SUMMARYThis paper describes the robotics facilities and associated research program of the Jet Propulsion Laboratory, lead center in telerobotics for the United States National Aeronautics and Space Administration. Emphasis is placed on evolution from teleoperation to remote System automation. Research is described in manipulator modelling and control, real-time planning and monitoring, navigation in outdoor terrain, real-time sensing and perception, human-machine interface, and overall System architectures. Applications to NASA missions emphasize robotic spacecraft for solar System exploratio

APA, Harvard, Vancouver, ISO, and other styles

23

Ryan, M. A., H. Zhou, M. G. Buehler, et al. "Monitoring Space Shuttle Air Quality Using the Jet Propulsion Laboratory Electronic Nose." IEEE Sensors Journal 4, no. 3 (2004): 337–47. http://dx.doi.org/10.1109/jsen.2004.827275.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Hollins, Hunter. "Science and Military Influences on the Ascent of Aerospace Development in Southern California." Southern California Quarterly 96, no. 4 (2014): 373–404. http://dx.doi.org/10.1525/scq.2014.96.4.373.

Full text

Abstract:

While spectator interest got aircraft off the ground, scientific inquiry initially fueled advances in design. But from a very early date, military application was a driving force. The histories of aircraft, the California Institute of Technology (Caltech), and Jet Propulsion Laboratory (JPL) bring to light the relative roles of science and military in the development of aerospace in Southern California.

APA, Harvard, Vancouver, ISO, and other styles

25

Niell, A. E., J. F. Lestrade, R. A. Preston, R. L. Mutel, and R. B. Phillips. "VLBI Positions of Eight Stellar Systems." Symposium - International Astronomical Union 129 (1988): 327–28. http://dx.doi.org/10.1017/s0074180900134874.

Full text

Abstract:

Radio positions of eight stellar systems have been derived with accuracies of 3 to 300 milliarcseconds from MkIII VLBI observations conducted with multi-station arrays. The best accuracy was obtained during a relatively strong outburst of the RS CVn system HR 5110. The epoch J2000.0 positions are obtained in the Jet Propulsion Laboratory VLBI reference frame of extragalactic radio sources.

APA, Harvard, Vancouver, ISO, and other styles

26

Sutherland, Kelly R., and Daniel Weihs. "Hydrodynamic advantages of swimming by salp chains." Journal of The Royal Society Interface 14, no. 133 (2017): 20170298. http://dx.doi.org/10.1098/rsif.2017.0298.

Full text

Abstract:

Salps are marine invertebrates comprising multiple jet-propelled swimming units during a colonial life-cycle stage. Using theory, we show that asynchronous swimming with multiple pulsed jets yields substantial hydrodynamic benefit due to the production of steady swimming velocities, which limit drag. Laboratory comparisons of swimming kinematics of aggregate salps ( Salpa fusiformis and Weelia cylindrica ) using high-speed video supported that asynchronous swimming by aggregates results in a smoother velocity profile and showed that this smoother velocity profile is the result of uncoordinated

APA, Harvard, Vancouver, ISO, and other styles

27

Sternberg, David C., Christopher Pong, Nuno Filipe, Swati Mohan, Shawn Johnson, and Laura Jones-Wilson. "Jet Propulsion Laboratory Small Satellite Dynamics Testbed Simulation: On-Orbit Performance Model Validation." Journal of Spacecraft and Rockets 55, no. 2 (2018): 322–34. http://dx.doi.org/10.2514/1.a33806.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Hanle, Paul A., and Clayton R. Koppes. "JPL and the American Space Program: A History of the Jet Propulsion Laboratory." Technology and Culture 26, no. 4 (1985): 877. http://dx.doi.org/10.2307/3105650.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Basthoni, M. "Accuracy of Solar Eclipse Calculation Algorithm Based on Jet Propulsion Laboratory Data Nasa." Al-Ahkam 30, no. 1 (2020): 95. http://dx.doi.org/10.21580/ahkam.2020.30.1.5036.

Full text

Abstract:

<p>DE200 and DE405 are Development Ephemeris (DE) series released by the National Aeronautics and Space Administration (NASA) in 1981 and 1997. NASA uses DE405 to predict solar eclipses in 2011-2020. While before 2011 and after 2020 NASA uses VSOP87/ELP200 theory-based DE200. Why NASA not only use more updated series DE405 and still use old release DE200? What is the difference of DE200 accuracy compared to DE405 to predict solar eclipse? This needs to be researched because the solar eclipse predicted by NASA is used as a reference by the researchers. To answer this question, this paper

APA, Harvard, Vancouver, ISO, and other styles

30

Petropoulos, Anastassios E., Theresa D. Kowalkowski, Matthew A. Vavrina, et al. "1st ACT global trajectory optimisation competition: Results found at the Jet Propulsion Laboratory." Acta Astronautica 61, no. 9 (2007): 806–15. http://dx.doi.org/10.1016/j.actaastro.2007.03.013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Vasaeli, Iraj, and Brandon Umansky. "Smart Power Supply Calibration System." NCSL International measure 13, no. 1 (2021): 22–27. http://dx.doi.org/10.51843/measure.13.1.2.

Full text

Abstract:

This paper details the development of an automated procedure to conduct calibrations of power supplies at Jet Propulsion Laboratory, California Institute of Technology (JPL). The fundamentals of power supply calibrations are given, and discussion on the method by which this custom software handles that calibration. Additionally, this technique provides real time uncertainty quantification of the calibrations. This automated system has demonstrated a time savings over existing automated techniques in use today.

APA, Harvard, Vancouver, ISO, and other styles

32

Simon, J. L. "New semi-analytic theory of the four outer planets." Symposium - International Astronomical Union 172 (1996): 49–52. http://dx.doi.org/10.1017/s0074180900127111.

Full text

Abstract:

A planetary theory of the planets Jupiter, Saturn, Uranus and Neptune is presented here. It is a classical planetary theory where the perturbations are computed in the form of Poisson series of only one angular variable. It is built with modern values of the planetary masses and fitted to the numerical integration DE245 of the Jet Propulsion Laboratory (Standish, 1994). Its validity time span is of several thousand of years.

APA, Harvard, Vancouver, ISO, and other styles

33

Oliver, Bernard M. "SETI: A More Eclectic Approach." Symposium - International Astronomical Union 112 (1985): 351–60. http://dx.doi.org/10.1017/s0074180900146698.

Full text

Abstract:

Three groups, one at Ames Research Center, one at the Jet Propulsion Laboratory, and one at Stanford University are currently engaged in the research and development phase of the NASA SETI program Other papers in this session will describe in greater detail some of the work going on at each of these centers. It is my intent here to give an overall picture of the program so that the other papers may be viewed in context.

APA, Harvard, Vancouver, ISO, and other styles

34

Hilland, Jeffrey E., Dudley B. Chelton, and Eni G. Njoku. "Production of global sea surface temperature fields for the Jet Propulsion Laboratory workshop comparisons." Journal of Geophysical Research 90, no. C6 (1985): 11642. http://dx.doi.org/10.1029/jc090ic06p11642.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Calvet, Ramon Gonzalez. "On a New Analytic Theory of the Moon's Motion III: Further Corrections." Journal of Geometry and Symmetry in Physics 59 (2021): 67–99. http://dx.doi.org/10.7546/jgsp-59-2021-67-99.

Full text

Abstract:

Further corrections to the analytic theory of the lunar motion deduced from the first-order approximation to the Lagrange equations of the Sun-Earth-Moon system expressed in relative coordinates and accelerations are evaluated. Those terms arising from the second-order approximation, the planetary perturbations and Earth's spheroidal shape are calculated and bounded, all of them being very small. Finally, Earth's gravitational parameter is calculated from gravity data finding a value slightly higher than that provided by Jet Propulsion Laboratory.

APA, Harvard, Vancouver, ISO, and other styles

36

Carsey, Frank, Alberto Behar, A. Lonne Lane, Vince Realmuto, and Hermann Engelhardt. "A borehole camera system for imaging the deep interior of ice sheets." Journal of Glaciology 48, no. 163 (2002): 622–28. http://dx.doi.org/10.3189/172756502781831124.

Full text

Abstract:

AbstractThe design and first deployment is described for the Jet Propulsion Laboratory–California Institute of Technology ice borehole camera system for acquisition of down-looking and side-looking images in a borehole made by a hot-water drill. The objective of the system is to acquire images in support of studies of the basal dynamics and thermodynamics of West Antarctic ice streams. A few sample images, obtained during the 2000/01 Antarctic field season, are shown from the basal layers of Ice Stream C.

APA, Harvard, Vancouver, ISO, and other styles

37

Salzberg, Aaron. "Validation of LACE Spacecraft Vibroacoustic Prediction Model." Journal of the IEST 32, no. 1 (1989): 53–59. http://dx.doi.org/10.17764/jiet.1.32.1.6780657570w77x21.

Full text

Abstract:

The purpose of this article is threefold: • To verify that the VibroAcoustic Payload Environment Prediction System (VAPEPS), as developed by the Lockheed Missile and Space Company and monitored by the Jet Propulsion Laboratory (JPL), is a viable means of predicting spacecraft component responses to an acoustic environment. • To address the determination of important parameters in the creation of a Statistical Energy Model in order to achieve accurate results using VAPEPS. • To present a technique for deriving component random vibration test levels from these results.

APA, Harvard, Vancouver, ISO, and other styles

38

Michel, Patrick, A. Cheng, A. Galvez, et al. "AIDA: Asteroid Impact and Deflection Assessment." Proceedings of the International Astronomical Union 10, H16 (2012): 480. http://dx.doi.org/10.1017/s1743921314011855.

Full text

Abstract:

AbstractAIDA (Asteroid Impact and Deflection Assessment) is a project of a joint mission demonstration of asteroid deflection and characterisation of the kinetic impact effects. It involves the Johns Hopkins Applied Physics Laboratory (with support from members of NASA centers including Goddard Space Flight Center, Johnson Space Center, and the Jet Propulsion Laboratory), and the European Space Agency (with support from members of the french CNRS/Cte dAzur Observatory and the german DLR). This assessment will be done using a binary asteroid target. AIDA consists of two independent but mutually

APA, Harvard, Vancouver, ISO, and other styles

39

Nichols, David A., and John C. Curlander. "Earth observing SAR data processing systems at the Jet Propulsion Laboratory — SEASAT to EOS SAR." Acta Astronautica 28 (August 1992): 147–57. http://dx.doi.org/10.1016/0094-5765(92)90020-j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Romanishin, W., and S. C. Tegler. "A Small Centaur with a Coma and Tail and Another with a Coma." Research Notes of the AAS 6, no. 10 (2022): 215. http://dx.doi.org/10.3847/2515-5172/ac9af9.

Full text

Abstract:

Abstract We report discovery and initial investigation of extended optical emission from two known Centaurs, 2020 XV1 and 2021 RK133. These objects are classified as Centaurs using the Jet Propulsion Laboratory HORIZONS Centaur criteria, but not the Minor Planet Center criteria, as both have q < 5.2 au. We derive limits on the fraction of light coming from the nuclei and from the extended emission regions and derive magnitude limits for the nuclei. Using these nuclear magnitudes and an assumed albedo of 7% we estimate that these two Centaurs are rather small, with diameters of no more than

APA, Harvard, Vancouver, ISO, and other styles

41

Serra, Daniele, Giacomo Lari, Giacomo Tommei, et al. "A solution of Jupiter’s gravitational field from Juno data with the orbit14 software." Monthly Notices of the Royal Astronomical Society 490, no. 1 (2019): 766–72. http://dx.doi.org/10.1093/mnras/stz2657.

Full text

Abstract:

ABSTRACT The latest estimation of Jupiter’s gravitational field was obtained by processing the Doppler data from two gravity orbits of NASA’s Juno mission, using the Jet Propulsion Laboratory software monte. In this work, we present the results of the analysis of the same measurements employing the orbit determination software orbit14, developed at the University of Pisa, used here for the first time with real data. We found that the estimated values of Jupiter’s spherical harmonic coefficients from the two solutions are consistent within the formal uncertainty. The analysis is complemented wi

APA, Harvard, Vancouver, ISO, and other styles

42

Thomas, Valerie. "A Vibroacoustic Database Management Center for Shuttle and Expendable Launch Vehicle Payloads." Journal of the IEST 30, no. 6 (1987): 24–26. http://dx.doi.org/10.17764/jiet.1.30.6.j172813701hn2553.

Full text

Abstract:

A Vibroacoustic Database Management Center has recently been established at the Jet Propulsion Laboratory (JPL). The center uses the Vibroacoustic Payload Environment Prediction System (VAPEPS) computer program to maintain a database of flight and ground-test data and structural parameters for both shuttle and expendable launch-vehicle payloads. Given the launch-vehicle environment, the VAPEPS prediction software, which employs Statistical Energy Analysis (SEA) methods, can be used with or without the database to establish the vibroacoustic environment for new payload components. This paper su

APA, Harvard, Vancouver, ISO, and other styles

43

Messeri, Lisa. "Exploration and Engineering: The Jet Propulsion Laboratory and the Quest for Mars by Erik M. Conway." Technology and Culture 57, no. 3 (2016): 693–94. http://dx.doi.org/10.1353/tech.2016.0091.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Montgomery, James F., Andrew E. Johnson, Stergios I. Roumeliotis, and Larry H. Matthies. "The Jet Propulsion Laboratory Autonomous Helicopter Testbed: A platform for planetary exploration technology research and development." Journal of Field Robotics 23, no. 3-4 (2006): 245–67. http://dx.doi.org/10.1002/rob.20110.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Zaman, Khairul BMQ, and Dennis J. Dicki. "A scale model study of an engine test facility for alleviating low-frequency howl." International Journal of Aeroacoustics 23, no. 3-4 (2024): 299–317. http://dx.doi.org/10.1177/1475472x241230654.

Full text

Abstract:

A scale model experimental study is conducted addressing howl occurring during engine tests in the Propulsion Systems Laboratory (PSL) of NASA Glenn Research Center. The aim is to understand the sources of the howling noise and find possible remedies. It is shown that a jet discharged into the model of the PSL entrance duct gives rise to high levels of low frequency noise. This occurs apparently due to duct acoustic modes randomly excited by the jet. Wire-mesh screens of various mesh size and configuration as well as tabs, placed at the end of the model duct, are shown to affect the noise. Com

APA, Harvard, Vancouver, ISO, and other styles

46

Paynter, H. M. "Representation of Measured Ejector Characteristics by Simple Eulerian Bond Graph Models." Journal of Dynamic Systems, Measurement, and Control 107, no. 4 (1985): 258–61. http://dx.doi.org/10.1115/1.3140732.

Full text

Abstract:

Ejectors (or jet pumps) are highly reliable pure fluidic devices very commonly used in power plants, propulsion systems, petrochemical processes and other thermofluid systems. However, little off-design data has been available in a form suitable for dynamic simulation and control system design. Fortunately, concerns of the nuclear industry have recently led the Idaho National Engineering Laboratory (INEL) to obtain, from their LOFT Test Support facility, ejector test data sufficiently extensive to formulate a complete model accurately describing all flow conditions. Thus an elementary fixed-co

APA, Harvard, Vancouver, ISO, and other styles

47

Zhao, Yue Feng, and Jing Li. "Development of Microwave Limb Sounder." Key Engineering Materials 500 (January 2012): 204–11. http://dx.doi.org/10.4028/www.scientific.net/kem.500.204.

Full text

Abstract:

Microwave limb sounding is powerful to measure atmospheric compositions, temperature and pressure with high vertical resolution. During the past few decades many countries have developed several Microwave limb sounders to improve our understanding of stratospheric ozone chemistry and dynamics, the interaction of composition and climate and pollution in the upper troposphere. This issue will outline five existed MLS instrument and analyze their adopted techniques for lower noise and higher sensitivity as well as their capabilities comparisons. In American, the Jet Propulsion Laboratory (JPL) ha

APA, Harvard, Vancouver, ISO, and other styles

48

Tratt, David M., and Robert T. Menzies. "Recent climatological trends in atmospheric aerosol backscatter derived from the Jet Propulsion Laboratory multiyear backscatter profile database." Applied Optics 33, no. 3 (1994): 424. http://dx.doi.org/10.1364/ao.33.000424.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

McDermid, I. Stuart, Georg Beyerle, David A. Haner, and Thierry Leblanc. "Redesign and improved performance of the tropospheric ozone lidar at the Jet Propulsion Laboratory Table Mountain Facility." Applied Optics 41, no. 36 (2002): 7550. http://dx.doi.org/10.1364/ao.41.007550.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Serabyn, Eugene. "Observing Faint Companions Close to Bright Stars." Proceedings of the International Astronomical Union 7, S282 (2011): 163–66. http://dx.doi.org/10.1017/s1743921311027268.

Full text

Abstract:

AbstractProgress in a number of technical areas is enabling imaging and interferometric observations at both smaller angular separations from bright stars and at deeper relative contrast levels. Here we discuss recent progress in several ongoing projects at the Jet Propulsion Laboratory. First, extreme adaptive optics wavefront correction has recently enabled the use of very short (i.e., blue) wavelengths to resolve close binaries. Second, phase-based coronagraphy has recently allowed observations of faint companions to within nearly one diffraction beam width of bright stars. Finally, rotatin

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!