Results 41 to 50 of about 574,212 (298)

Rebuttal to "Comment by V.M. Krasnov on 'Counterintuitive consequence of heating in strongly-driven intrinsic junctions of Bi2Sr2CaCu2O8+d Mesas' " [PDF]

, 2010
In our article [1], we found that with increasing dissipation there is a clear, systematic shift and sharpening of the conductance peak along with the disappearance of the higher-bias dip/hump features (DHF), for a stack of intrinsic Josephson junctions (
Gray, Kenneth E., Hinks, David G., Kurter, Cihan, Proslier, Thomas, Zasadzinski, John F., Özyüzer, Lütfi, Özyüzer, Lütfi   +6 more
core   +3 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Hidden area and mechanical nonlinearities in freestanding graphene [PDF]

, 2017
We investigated the effect of out-of-plane crumpling on the mechanical response of graphene membranes. In our experiments, stress was applied to graphene membranes using pressurized gas while the strain state was monitored through two complementary ...
Bolotin, Kirill I., Lavrik, Nickolay V., Nicholl, Ryan J. T., Srijanto, Bernadeta R., Vlassiouk, Ivan   +4 more
core   +2 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Hilbert-Twin – A Novel Hilbert Transform-Based Method To Compute Envelope Of Free Decaying Oscillations Embedded In Noise, And The Logarithmic Decrement In High-Resolution Mechanical Spectroscopy HRMS

Archives of Metallurgy and Materials, 2015
In this work, we present a novel Hilbert-twin method to compute an envelope and the logarithmic decrement, δ, from exponentially damped time-invariant harmonic strain signals embedded in noise.
Magalas L.B., Majewski M.
doaj   +1 more source

Alternative dynamic torsion test to evaluate the elastic modulus of polymers

Materials Research Express, 2020
This work presents an alternative for the determination of the torsion modulus, G, of polymers. These materials may be subjected to shear stresses in some structural applications; thereby, the knowledge of G is of great interest.
Lucas Pereira Piedade, Carlos Alberto Fonzar Pintão, Cesar Renato Foschini, Marcos Ribeiro da Silva, Nilton Francelosi Azevedo Neto   +4 more
doaj   +1 more source

Local Optical Probe of Motion and Stress in a multilayer graphene NEMS

, 2012
Nanoelectromechanical systems (NEMSs) are emerging nanoscale elements at the crossroads between mechanics, optics and electronics, with significant potential for actuation and sensing applications.
A Castro Neto, A Das, A Eichler, AD O'Connell, Antoine Reserbat-Plantey, B Lassagne, C Lee, D Garcia-Sanchez, F Otakar, F Otakar, G Anetsberger, G Anetsberger, H Conley, H Hosaka, HB Peng, HS Skulason, J Yan, JW Pomeroy, K Jensen, KL Ekinci, KS Novoselov, Laëtitia Marty, LD Landau, M Huang, M Kasevich, Nedjma Bendiab, O Arcizet, Olivier Arcizet, R Lifshitz, RR Nair, S Berciaud, SJ Bunch, TJ Booth, TMG Mohiuddin, V Singh, Vincent Bouchiat, X Ling   +36 more
core   +3 more sources

Structure and wear mechanisms of nano-structured TiAlCN/VCN multilayer coatings [PDF]

, 2007
Dry sliding wear of transition metal nitride coatings usually results in a dense and strongly adhered tribofilm on the worn surface. This paper presents detailed electron microscopy and Raman spectroscopy characterizations of the microstructure, a newly ...
Ajayi, Barshilia, Biswas, Constable, Donnet, Ehiasarian, Erdemir, Hovsepian, Hovsepian, Jamal, Lahres, Luo, Luo, Luo, Luo, Luo, Münz   +16 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Low-Frequency Mechanical Spectroscopy of Lanthanum Cobaltite Based Mixed Conducting Oxides

Archives of Metallurgy and Materials, 2016
The low-frequency mechanical spectra of lanthanum cobaltite based mixed conducting oxides have been measured using a computer-controlled inverted torsion pendulum. The results indicate that the internal friction spectra and shear modulus depend on the Sr
Wu Xiu Sheng, Cao Ju Fang, Chen Zhi Jun, Liu Wei   +3 more
doaj   +1 more source