Results 61 to 70 of about 4,536 (193)

Types of aeroelastic vibrations of turbomachinery bladed discs

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
A real process was analyzed for presence of self-oscillations. Absence of self-oscillations was revealed as its attributes such as progressive wave and beating were not discovered.
A. O. Koskin, V. G. Seleznev
doaj   +1 more source

Evaluation of star gyro torquing final report [PDF]

open access: yes
Electrostatic gyroscope ...
Quick, W. H., Wey, W. C.
core   +1 more source

The low-frequency response in the surface superconducting state of ZrB$_{12}$ single crystal}

open access: yes, 2004
The large nonlinear response of a single crystal ZrB$_{12}$ to an ac field (frequency 40 - 2500 Hz) for $H_0>H_{c2}$ has been observed. Direct measurements of the ac wave form and the exact numerical solution of the Ginzburg-Landau equations, as well as ...
C. H. L. Kennard   +11 more
core   +1 more source

Gharial acoustic signaling: Novel underwater pops are temporally based, context‐dependent, seasonally stable, male‐specific, and individually distinctive

open access: yesJournal of Anatomy, Volume 246, Issue 3, Page 415-443, March 2025.
Male gharials (Gavialis gangeticus) produce loud underwater POPs by rapid jaw clapping 1–3×. POPs are temporally based, context‐dependent, seasonally stable, and individually distinctive. The bulbous, cartilaginous “ghara” atop the snout is a sexually dimorphic unique feature.
Jailabdeen Ajji M., Jeffrey W. Lang
wiley   +1 more source

Development of high voltage - High current switches Final report [PDF]

open access: yes
Envelope, electrode, and trigger design for high voltage high current ...
Price, H. N.
core   +1 more source

Revealing Resistive Switching of Phase Transitions in an Al‐Doped Single Crystal of VO2 by DC and Pulsed Electrical Measurements

open access: yesAdvanced Physics Research, Volume 4, Issue 2, February 2025.
RS(T→M2) transition seen on the R inversevs T plot (left). This, and RS associated with additional transitions seen on the oscillogram of a pulsed current (middle) Abstract The simple phase diagram of pure VO2 consisting of an insulating monoclinic M1 phase and a metallic tetragonal R phase with a steep insulator‐metal‐transition (IMT) at TIMT = 340 K,
Larisa Patlagan   +2 more
wiley   +1 more source

APPLICATION OF TRANSDUCTORS IN SHORT-CIRCUIT CURRENT MEASURING DEVICES

open access: yesВестник Донского государственного технического университета, 2018
The statement that transductors with magnetodielectric carbonyl iron dust-based magnetic circuits have the linear gain characteristic on the peak values throughout the full range of the real current value shift is proved in theory and by experiment ...
Nikolay I. Tsygulev, Vladimir R. Prous
doaj  

Contact fracture behavior of ice

open access: yesЛëд и снег, 2020
The formation of an intermediate layer under hydrostatic compression at a shear appearing due to the action of converging and diverging fronts of stress momentums (pulses) is considered.
V. P. Epifanov
doaj   +1 more source

Experimentally measured effects of the wall boundary layer on shock-tube performance [PDF]

open access: yes
Nitrogen driven gas wall boundary layer effect and hydrogen driver gas thermodynamic effect on shock speed and test time in ...
Livingston, F. R.
core   +1 more source

The Power Flow Angle of Acoustic Waves in Thin Piezoelectric Plates [PDF]

open access: yes, 2008
The curves of slowness and power flow angle (PFA) of quasi-antisymmetric (A0) and quasi-symmetric (S0) Lamb waves as well as quasi-shear-horizontal (SH0) acoustic waves in thin plates of lithium niobate and potassium niobate of X-,Y-, and Z-cuts for ...
Joshi, Shrinivas   +4 more
core   +1 more source

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