Results 81 to 90 of about 93,868 (305)

Effect of perturbing diacylglycerol metabolism on cytosolic free Ca2+ oscillations induced in single hepatocytes

open access: yes, 1992
Single rat hepatocytes microinjected with aequorin show free Ca oscillations when stimulated with Ca2+-mobilizing hormones. We show here that an inhibitor of diacylglycerol kinase (R 59 022) and an analogue of native diacylglycerol (diC8) inhibit free Ca
Sanchez-Bueno, Antonio   +3 more
core   +1 more source

NONLINEAR DYNAMICS OF A ROTOR WITH CANTILEVERED DISK RESTING ON ANGULAR CONTACT BALL BEARINGS [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2016
The mathematical model of nonlinear oscillations of the rotor resting on angular contact ball bearings is developed. The disc is fixed on the console end of the shaft. The deflection of the shaft, and the elastic deformation of the bearings have the same
S. Filipkovskyi
doaj  

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

open access: yesAdvanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia   +3 more
wiley   +1 more source

A note on the method of harmonic balance

open access: yesVietnam Journal of Mechanics, 2001
Free oscillation period of the Duffing oscillator with cubic non-linearity was examined. A comparison between the exact period and those obtained by the asymptotic and the harmonic balance methods was done.
Nguyen Van Dinh
doaj   +1 more source

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

open access: yesAdvanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk   +3 more
wiley   +1 more source

Free oscillations in a beta-plane ocean

open access: yes, 1971
This paper is concerned with the free oscillations in a rectangular equatorial beta-plane model of large oceans with a free surface placed symmetrically on the equator.
Mofjeld, H. O., Rattray, Maurice, Jr.
core  

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Spatial encoding in primate hippocampus during free navigation.

open access: yesPLoS Biology, 2019
The hippocampus comprises two neural signals-place cells and θ oscillations-that contribute to facets of spatial navigation. Although their complementary relationship has been well established in rodents, their respective contributions in the primate ...
Hristos S Courellis   +6 more
doaj   +1 more source

Free Oscillations of the Earth

open access: yesEos, Transactions American Geophysical Union, 1982
The study of the earth's free oscillations has been an extraordinarily productive area of research in geophysics for the past 25 years. After every large earthquake since the Chilean event of 1960, seismometers, gravimeters, and strain gauges have supplied seismologists with several days o f data containing the eigenperiods of a wide variety of ...
openaire   +1 more source

Adenine dinucleotide-mediated cytosolic free Ca2+ oscillations in single hepatocytes

open access: yes, 1993
Single rat hepatocytes microinjected with aequorin respond to Ca2+-mobilizing agonists, including ADP and ATP, with oscillations in cytosolic free Ca2+. We show here that single rat hepatocytes also respond to the adenine dinucleotides Ap3A and Ap4A with
Cobbold, Peter H.   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy