forward wave

[¦fȯr·wərd ¦wāv]

(electronics)

Wave whose group velocity is the same direction as the electron stream motion.

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References in periodicals archive ?

reported that both carotid and radial arterial pressure pulse waveforms could be accurately modelled using three Gaussian functions, which were considered to be associated with forward wave, the tide, and dicrotic or backward waves [20].

Gaussian Modelling Characteristics of Peripheral Arterial Pulse: Difference between Measurements from the Three Trimesters of Healthy Pregnancy

State mode The shockwave pattern The boundary condition I forward wave forward wave [[omega].sub.f] [[omega].sub.f] (2) (1) input flow rate [q.sub.in] II backward wave output flow rate [[omega].sub.b] [q.sub.max] input flow rate [q.sub.in] III forward wave output flow rate [[omega].sub.f] (2) [q.sub.max] input flow rate [q.sub.in] IV forward wave output flow rate 0 input [[omega].sub.f] (2) flow rate [q.sub.in] V backward wave (2) output flow rate 0 input [[omega].sub.b] (2) flow rate [q.sub.in] State mode Signal Traffic state phase I green Free flow-Free flow II green Free flow-Congestion2 III green Free flow-Congestion1 IV red Free flow-Congestion1 V red Free flow-Congestion2 Table 3: Fitted Gaussian distribution of shockwave speed (feet/s).

Empirical Approximation for the Stochastic Fundamental Diagram of Traffic Flow on Signalized Intersection

The stimulus in the fluid may result in a similar effect as the stimulation by the stapes, producing a forward wave. This phenomenon has been demonstrated by von Bekesy [38] and termed as the paradoxical wave, where even if the stapes is placed at the apex of the cochlea, a forward traveling wave was still observed, moving towards the source.

Hydromechanical Structure of the Cochlea Supports the Backward Traveling Wave in the Cochlea In Vivo

The forward wave is described by (13) with a "plus" and the backward wave with a "minus." Obviously, the angle between wave front propagation and the normal is

Penetration Effect: Exotic Behavior of a Wave in Anisotropic Media

The pulse wave at the radial artery is the superposition of the forward wave, produced by the heart, and the reflected wave from the aortic bifurcation at the iliac artery [15].

Development of a Cardiovascular Simulator for Studying Pulse Diagnosis Mechanisms

Now the gradients can be obtained by computing the forward wave fields and the adjoint wave fields.

Time Domain Waveform Inversion for the Q Model Based on the First-Order Viscoacoustic Wave Equations

It means that the CRLH TL based on the basic LC circuit supports a forward wave in the RH effect area ([beta] > 0), where the structure works in the low-pass band, while a backward wave is in the LH effect area ([beta] < 0), where the structure operates on the high-pass band.

Design of Miniaturized Band-Pass Filter with Composite Right/Left-Handed Transmission Line

The dimension of the driven element is 0.1808A mm x 0.1962[lambda] mm giving 70 deg phase shift for forward wave with the intention that wave is coupled more towards the director.

Triple band parasitic array antenna for C-X-Ku-band application using out-of-phase coupling approach

They are forward wave modes, backward wave modes, evanescent wave modes and complex wave modes.

Complex surface wave modes of plasma column loaded closed cylindrical waveguide

The challenge for a sever design is to attenuate the forward wave over a wide range of frequencies and at the same time not letting the reflections to build up in the circuit.

MEMS compatible sever for 220 GHz ultra wide band TWTA: design and particle-in-cell analysis

Figure 8 shows Brillouin diagram of the slotted helix SWS, which is the same as that of the conventional helix SWS, so the novel helix slow-wave circuit is also a fundamental forward wave circuit and the electron beam interacts with the zero space harmonic.

A novel slotted helix slow-wave structure for millimeter-wave traveling-wave tube

This technique uses the reconstruction property of the time reversal procedure; that is, an original wave can be reconstructed at its source point if its forward wave recorded at another point is time reversed and emitted back to the source point.

Damage detection of closed crack in a metallic plate using nonlinear ultrasonic time reversal method