Results 41 to 50 of about 137,740 (294)

Dynamics of the warp beam brake drive on a weaving loom for the production of natural silk fabrics [PDF]

E3S Web of Conferences
In the process of producing silk fabrics, by the fact of the high elastic properties of the threads large relaxation oscillations occur in the weaving system of the loom.
Rakhimhodjaev Saidvoris, Tashpulatov Salikh, Sobirova Gulfiya, Rajapova Marguba, Tyurin Igor   +4 more
doaj   +1 more source

Dynamic relaxation oscillations in a nonlinearly driven quartz crystal

, 2015
We demonstrate thermo-mechanical relaxation oscillations in a strongly driven quartz crystal. Dynamic bifurcation leads to two stable oscillation states with a distinct electrical impedance.
Geuze, M. J., Houri, S., Venstra, W. J.
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Transient Responses to Relaxation Oscillations in Multivibrators

IEEE Access
The multivibrator is an electronic circuit that has three oscillation states: astable, monostable, and bistable; these circuits typically contain opamps.
Seiya Amoh, Tetsushi Ueta, Hiroshi Kawakami   +2 more
doaj   +1 more source

Airway smooth muscle relaxation results from a reduction in the frequency of Ca²⁺ oscillations induced by a cAMP-mediated inhibition of the IP₃ receptor

Respiratory Research, 2006
Background It has been shown that the contractile state of airway smooth muscle cells (SMCs) in response to agonists is determined by the frequency of Ca2+ oscillations occurring within the SMCs.
Sanderson Michael J, Bai Yan
doaj   +1 more source

Doppler-Induced Dynamics of Fields in Fabry-Perot Cavities with Suspended Mirrors [PDF]

, 2001
The Doppler effect in Fabry-Perot cavities with suspended mirrors is analyzed. Intrinsically small, the Doppler shift accumulates in the cavity and becomes comparable to or greater than the line-width of the cavity if its finesse is high or its length is
Abramovici, An, Camp, Drever, Lawrence, Rakhmanov, Robertson   +6 more
core   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Relaxation oscillations, stability, and cavity feedback in a superradiant Raman laser

, 2013
We experimentally study the relaxation oscillations and amplitude stability properties of an optical laser operating deep into the bad-cavity regime using a laser-cooled $^{87}$Rb Raman laser.
A. E. Siegman, James K. Thompson, Joshua M. Weiner, Justin G. Bohnet, Kevin C. Cox, Zilong Chen   +5 more
core   +1 more source

The intrinsic electrical equivalent circuit of a laser diode [PDF]

, 1981
The basic electrical equivalent circuit of a laser diode is derived. The effects of spontaneous emission and self-pulsations are included. It is found that self-pulsations are represented by a negative resistance in the model.
Harder, C., Katz, J., Margalit, S., Wilt, D., Yariv, Amnon   +4 more
core   +1 more source