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Topic: Doppler profile

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	MySpace.com - DOPPLeR - Lyon - www.myspace.com/personnenedanse
		Doppler now works on the compositions for a second full lenght album, vaguely scheduled for...
		On a programmé Doppler dans notre émission (de radio) Underground Zéro mercredi 3 septembre.
		Ola les doppler, c'est nico de l'asso deviation a chabeuil votre plus grand fan je viens pirater votre my space avec mon groupe de gitan jazz man...
	www.myspace.com /personnenedanse (1087 words)

	NationMaster - Encyclopedia: Doppler profile (Site not responding. Last check: 2007-10-29)
		is the center wavelength of the profile, c is the speed of light, T is the temperature, k is the Boltzmann constant and m the mass of the atom.
		Doppler effect, change in the wavelength (or frequency) of energy in the form of waves, e.g., sound or light, as a result of motion of either the source or the receiver of the waves; the effect is named for the Austrian scientist Christian Doppler, who demonstrated the effect for sound.
		This line shape is called a Doppler profile and the width of the line is proportional to the square root of the temperature of the gas, allowing the Doppler-broadened line to be used to measure the temperature of the emitting gas.
	www.nationmaster.com /encyclopedia/Doppler-profile (518 words)

	Doppler broadening - Encyclopedia, History, Geography and Biography
		In atomic physics, Doppler broadening is the broadening of spectral lines due to the Doppler effect in which the thermal movement of atoms or molecules shifts the apparent frequency of each emitter.
		where $\lambda_0$ is the center wavelength of the profile, $c$ is the speed of light, $T$ is the temperature, $k$ is the Boltzmann constant and $m$ the mass of the atom.
		In Astronomy, Doppler broadening is one of the explanations for the broadening of spectral lines, and as such gives an indication for the relative temperatures of observed material.
	www.arikah.com /encyclopedia/Doppler_broadening (708 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-29)
		The Doppler effect, named after Christian Doppler, is the change in frequency and wavelength of a wave that is perceived by an observer moving relative to the source of the waves.
		Other interesting cases are that the Doppler effect is time dependent in general (thus we need to know not only the source and receivers' velocities but also their positions at a given time) and also in some circumstances it is possible to receive two signals or waves from a source (or no signal at all).
		Another use of the Doppler effect which is found mostly in astronomy, is the estimation of the temperature of a gas which is emitting a spectral line.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Doppler_effect (1847 words)

	Doppler effect Summary
		Doppler ultrasonography is also useful for assessing blood flow in the abdomen or legs and viewing the heart to detect and monitor disease.
		The Doppler principle is simply that sound pitch increases as the source moves toward the listener and decreases as it moves away.
		While Doppler, in 1842, demonstrated the phenomenon named after him in the area of sound waves, in the same year he also predicted that light waves could be shown to exhibit the same response to the movement of bodies similar to those of sound waves.
	www.bookrags.com /Doppler_effect (2772 words)

	Real-time ultrasonic B-scan imaging and Doppler profile display system and method - Patent 4141347
		The well known pulsed Doppler method also employs a narrow beam transducer to project a short ultrasonic pulse into moving tissue or particles, such as blood cells, and to detect the frequency of the reflected signal, which frequency is related to the movement or flow of the tissue or particles.
		Doppler profile signals from the Doppler receiver and Doppler cursor signals from the cursor generator also are displayed between selected lines of B-scan display as determined by the programming of the PROM 222.
		The commutator output, comprising the Doppler profile signal, is connected through the amplifier 356, the amplifier 364 for 2X operation or the gate 366 for 1X operation, and the multiplexer 156, to the horizontal deflection circuit of the cathode ray tube 66 for Doppler profile display.
	www.freepatentsonline.com /4141347.html (20227 words)

	Doppler profile
		The Doppler profile is a spectral line profile which results from the thermal motion of the emitting atom or molecule.
		When thermal motion causes a particle to move towards the observer, the emitted radiation will be shifted to a higher frequency.
		For non-relativistic thermal velocities, the doppler shift will be:
	www.casimiro.com /wiki/en/wikipedia/d/do/doppler_profile.html (247 words)

	Callisto \| Research & Development: Test Simulators
		The simulator, which works for either an S band downlink or an X band downlink, calculates the Doppler profile for a pass based on the operator selecting a few orbital parameters for the mission to be simulated (orbital height, inclination, maximum elevation angle).
		The calculated Doppler profile is then used to drive a synthesised Local Oscillator, which produces a frequency shift on test signal connected to the IF input of the ground station receivers.
		The Doppler profile is updated in real-time to simulate a satellite pass.
	www.callisto-space.com /research.2.html (547 words)

	Spectral line Summary
		Doppler broadening is due to the thermal motion of the emitting atoms or ions.
		This broadening effect is described by a Lorentzian profile in both the impact and the quasistatic case.
		For the quasistatic case, a Van der Waals profile is often useful in describing the profile.
	www.bookrags.com /Spectral_line (1865 words)

	Rb Spectroscopy
		Incidentally, like the lasing cavity modes enveloped by the broad gain profile of the laser, the amplitude of those external cavity modes enveloped by a single lasing cavity mode is modulated by the profile of the lasing cavity envelope.
		This is accomplished by “blazing” the grating, which basically alters the ruling profile of the grating such that the groove shape is in the form of a right triangle with a characteristic angle known as the blazing angle.
		Since the gain profile favors the lasing mode directly under or closest to the gain peak and moves relative to it at a faster rate, the gain profile continuously hops onto or selects successive lasing modes as the temperature is altered.
	laser.physics.sunysb.edu /~bazmoun/RbSpectroscopy (11458 words)

	THE UTERINE BIOPHYSICAL PROFILE - frames version
		Doppler ultrasound has been used as a means to predict a negative outcome for a given IVF cycle.
		Doppler ultrasound studies of the uterine artery in spontaneous cycles.
		Doppler ultrasound studies of the uterine arteries in spontaneous and IVF stimulated ovarian cycles.
	www.drapplebaum.com /ubp.htm (2913 words)

	Doppler Radar and Wind Profiles
		A Doppler radar uses electromagnetic waves to investigate atmospheric properties: the amplitude of waves are used to estimate the reflectivity and the phase of the waves are used to estimate the radial wind.
		Doppler radars are recording volume scans, i.e., reflectivity and radial velocity data as a function of range, azimuth, and elevation.
		Extraction of the vertical air velocity (w0) using the VAD technique is troubled by interference of the divergence of the local wind field and of the terminal velocity of the precipitation.
	www.knmi.nl /~holleman/radardoppler.html (1412 words)

	Processing of Doppler Weather Radar Winds
		Doppler radars provide measurements not only of the radar reflectivity (as conventional radars), but also of the frequency change of backscattered signal, which can be used for determination of radial velocity of the targets (mainly atmospheric precipitation and fluctuations in refractive index of air).
		Simulations of PPI visualisation of Doppler velocities for different observed wind fields were created to provide help with operational interpretation of Doppler data in the future [9].
		Doppler velocity data can provide a lot of useful information for meteorological applications, including ground clutter removal from radar reflectivity data, exploitation of vertical wind profiles, algorithms for detection of dangerous phenomena mainly in convective storms (mesocyclone, downburst).
	www.chmi.cz /meteo/rad/pub/wds99_dop (1975 words)

	The Doppler Principle and the Study of Cardiac Flows - The Doppler Display
		The major limitation of audio Doppler outputs is the requirements for subjective interpretation and the lack of a permanent objective record.
		The Doppler audio output, in contrast, is an audible display of the Doppler frequency shift spectrum produced by red cells moving in the path of the ultrasound beam.
		This display of the spectrum of the various velocities encountered by the Doppler beam is accomplished by very sophisticated microcomputers that are able to decode the returning complex Doppler signal and process it into its various velocity components.
	www.echoincontext.com /doppler01/doppler01_06.asp (837 words)

	Diffuse bands in RN (Site not responding. Last check: 2007-10-29)
		To test the model predictions, we observed the narrow DIB at 5797 Å towards a sample of reflection nebulae, and compared its profile with the "canonical" band of the standard diffuse medium (Le Coupanec et al.
		The profile has been corrected each time for the Doppler component of the clouds present towards this line of sight.
		The Doppler profile of the line of sight is deconvolved from the observation of the Sodium lines in the same line of sight.
	www.obs-hp.fr /www/preprints/pp124/node5.html (547 words)

	Doppler Echocardiographic Profile and Indexes in the Evaluation of Aortic Coarctation in Patients Before and After ...
		Use of continuous wave Doppler ultrasound velocimetry to assess the severity of coarctation of the aorta by measurement of aortic flow velocities Br Heart J 1984;52:278-283.
		Doppler ultrasound in the assessment of severity of coarctation of the aorta and interruption of the aortic arch Br Heart J 1987;57:38-43.
		Continuous-wave Doppler velocimetry as an adjunct to cross-sectional echocardiography in the diagnosis of critical left heart obstruction in neonates Br Heart J 1984;52:552-556.
	content.onlinejacc.org /cgi/content/full/46/6/1045 (3105 words)

	DOPPLER SPECTROSCOPY
		The magnitude of this shift is related to the component of the particle's velocity along the propagation axis of the light.
		From the resulting absorption spectrum, or Doppler profile, it is possible to deduce the distribution of particle velocities.
		As the three optical frequencies are scanned across an absorption profile the differential absorption of the sidebands breaks the cancellation and a beat signal at the rf frequency results.
	www.chem.tamu.edu /rgroup/north/doppler.html (1229 words)

	FM Saturation Spectroscopy
		Since the thermal velocities are non-relativistic, the Doppler shift in the angular frequency of the light absorbed by atoms traveling towards or away from a stationary source is given by the simple form
		In a low-pressure gas, the main source of broadening is Doppler broadening from the thermal motion of the atoms or molecules of the gas.
		The only atoms, which are in resonance with both beams, are atoms, which have no component of velocity in the direction of propagation of the beams, and therefore absorb at the frequency associated with atoms at rest.
	electron9.phys.utk.edu /optics507/modules/m10/saturation.htm (1681 words)

	Doppler profile - Encyclopedia, History, Geography and Biography (Site not responding. Last check: 2007-10-29)
		Doppler profile - Encyclopedia, History, Geography and Biography
		This page was last modified 05:05, 27 September 2006.
		This encyclopedia, history, geography and biography article about Doppler profile contains research on
	www.arikah.com /encyclopedia/Doppler_profile (46 words)

	Potential Threat to the Huygen Mission - Page 26 - Bad Astronomy and Universe Today Forum (Site not responding. Last check: 2007-10-29)
		Doppler data marks the events according to the predicted schedule...something your deluded mind fails to grasp.
		Since the Doppler shift in the Pioneer probes is measured by the time it takes light to complete a cycle from the Earth to the Pioneer probes and back again, the measured rate-of-change in the time-of-flight would be twice the actual change in velocity.
		The Doppler wind experiment (a transponder placed on the side of Huygens, and rotating) was supposed to tightly constrain the lateral movement of Huygens, so that the "A" Doppler data could be used to carefully calibrate the descent rate and the resulting altitude at any given time.
	www.bautforum.com /showthread.php?p=357451#post357451 (5303 words)

	Voigt profile - Definition, explanation
		In spectroscopy, the Voigt profile is a spectral line profile named after Woldemar Voigt and found in all branches of spectroscopy in which a spectral line is broadened by two types of mechanisms, one of which alone would produce a Doppler profile, and the other of which would produce a Lorentzian profile.
		The Voigt profile is then the convolution of a Lorentzian profile and a Doppler profile:
		The FWHM of the Gaussian profile is f
	www.calsky.com /lexikon/en/txt/v/vo/voigt_profile.php (379 words)

	Doppler profile (Site not responding. Last check: 2007-10-29)
		DOPPLER AUDIO "When sound travels" The History of DOPPLER AUDIO The Doppler effect, named after Christian Andreas Doppler**, is the apparent change in frequency and wavelength of sound perceived by an...
		This line shape is called a Doppler profile and the width of the line is proportional to the square root of the temperature of the gas, allowing the Doppler-broadened line to be used to measure the...
		ABC 33/40's Pinpoint Doppler radar is the most powerful and sophisticated broadcast weather...
	www.logicjungle.com /Doppler_profile.html (276 words)

	MySpace.com - Doppler Shift - Chicago, Illinois - Jazz / IDM / Experimental - www.myspace.com/dopplershift
		"Doppler Shift struts 'n' slams heavy funk...the sax-trumpet combination cry madly alluring melodies...'Physics' is one hell of a romp, the aural equivalent of a triple cappucino on ice on an 85 degree day."
		Formed in May of 2004, Doppler Shift is an experimental jazz-funk-rock band comprised of drums, bass, tenor saxophone, and trumpet.
		Inspired by groups such as the John Zorn Masada Quartet and the Gerry Mulligan Quartet, and fueled by James Brown, Ornette Coleman, Helmet, Medeski Martin and Wood, Doppler Shift has no chording instruments by choice, giving the listener a transparent groove to move your ass to.
	www.myspace.com /dopplershift (991 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		The experiment was performed exciting one velocity group of Ca atoms within the Doppler profile of the first transition and probing this group with a counterpropagating laser beam inducing the second transition.
		This is attributed to the weak velocity dependence of polarization broadening of the final level which was found to be the major contribution to the broadening of the two-photon line.
		For large relative velocities significant asymmetries in the measured line profiles due to velocity changing collisions had to be taken into account.
	www.phy.hr /~veza/papers/pap14.htm (180 words)

	Royal Brompton Hospital, London - Doppler echocardiography is useful in eval...
		Doppler echocardiography is useful in evaluating aortic coarctation
		Recent research from England has chronicled the use of Doppler echocardiographic profile and indexes in the evaluation of aortic coarctation in patients before and after stenting.
		"We sought to assess the effect of successful stenting on the Doppler profile of aortic coarctation and to identify echocardiographic indexes that could be used for follow-up of such patients," wrote J.L. Tan and colleagues, Royal Brompton Hospital.
	www.newsrx.com /issue_article/Telemedicine-Law-Weekly/2005-11-19/11202005333144TL.html (169 words)

	Non-invasive automated assessment of the ratio of pulmonary to systemic flow in patients with atrial septal defects by ...
		A region of interest is set on the aortic and pulmonary annulus on the display to obtain the velocity profile.
		Flow volume is measured by the temporal integration of the flow volume rate obtained by spatial integration of the velocity profile throughout the systolic period.
		Pulsed Doppler echocardiographic determination of stroke volume and cardiac output: clinical validation of two new methods using the apical window.
	heart.bmj.com /cgi/content/full/88/3/278 (2632 words)

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		I don't even own a computer and was house sitting for my parents when I saw an ad for the Personality Profile.
		I took it and was impressed with the results; it really hit the nail on the head.
	www.wfsb.com /dating (457 words)

	Doppler profile (Site not responding. Last check: 2007-10-29)
		In spectroscopy, the Doppler profile is a spectral line profile which results from the thermal motion of the emitting atom or molecule.
		When thermal motion causes a particle to move towards the observer, the emitted radiation will be shifted to a higher frequency.
		For non-relativistic thermal velocities, the Doppler shift will be:
	doppler-profile.mindbit.com (236 words)

	Evaluation of Cardiac Global Function Using the Myocardial Performance Index by Tissue Doppler Echocardiography in ...
		The spectral Doppler profile is characterized by single positive waveform (S) above the baseline and negative waveforms in early (Ea) and late (Aa) diastole.
		Doppler tissue-imaging waveform obtained at the lateral mitral valve annulus in an apical 4-chamber view from a patient in the uremia group.
		Doppler tissue-imaging waveform obtained at the septal tricuspid valve annulus in an apical 4-chamber view from a patient in the uremia with pericardial effusion group.
	www.jultrasoundmed.org /cgi/content/full/25/12/1563 (2791 words)

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