Results 61 to 70 of about 475,511 (316)

Study of poly(bisphenol A carbonate) relaxation kinetics at the glass transition temperature [PDF]

, 2007
In this work, the variations of the relaxation times are investigated above and below the glass transition temperature of a model amorphous polymer, the polycarbonate.
Delbreilh, Laurent, Lacabanne, Colette, Dargent, Eric, Grenet, Jean, Saiter, Jean-marc, Bernès, Alain   +5 more
core   +1 more source

relaxation time

, 2014
Citation: 'relaxation time' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05287 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources

Molecular mobility in crystallising aromatic thermoplastic polyimide R-BAPS

Physics of Complex Systems, 2020
The molecular mobility of the thermoplastic aromatic R-BAPS polyimide films based on 1,3-bis (3,3’-4,4’-dicarboxyphenoxy) benzene (dianhydride) and 4,4’-bis (4-aminophenoxy) biphenyl was studied using the dielectric method.
Наталья Алексеевна Никонорова, Алексей Андреевич Кононов, Рене Алехандро Кастро Арата   +2 more
doaj   +1 more source

Internal friction caused by migration of the intercrystalline boundary in the metal

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The model of internal friction at the migrating intercrystalline boundary is considered. Under the action of an alternating external stress oriented normally to the boundary, compression and stretching of the mating crystallites occurs.
V.G. Kul’kov, V.V. Kul’kova
doaj   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

FEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee, Ga Seul Lee, JinHan Kim, Kwang‐Hyun Park, Seong‐Ryung Go, Jeong Hee Moon, Eui‐Jeon Woo   +6 more
wiley   +1 more source

Applications of physical methods in high-frequency futures markets [PDF]

, 2007
In the present work we demonstrate the application of different physical methods to high-frequency or tick-by-tick financial time series data. In particular, we calculate the Hurst exponent and inverse statistics for the price time series taken from a ...
Bartolozzi, M., Oliver, D., Chan, F, Di Matteo, Tiziana, Bartolozzi, M, Di Matteo, T., Oliver, David, Chan, F., Mellen, C., Oliver, D, Mellen, C, Aste, Tomaso, Bartolozzi, Marco, Aste, T   +13 more
core   +1 more source

Uncertainty estimates for magnetic relaxation times and magnetic relaxation parameters [PDF]

Physical Chemistry Chemical Physics, 2019
Uncertainties in magnetic relaxation times from AC magnetometry are derived and a program for obtaining them is described, allowing statistically meaningful magnetic relaxation parameterisation.
Daniel Reta, Nicholas F. Chilton
openaire   +4 more sources

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

On a Relaxation of Time-Varying Actuator Placement [PDF]

IEEE Control Systems Letters, 2020
We consider the time-varying actuator placement in continuous time, where the goal is to maximize the trace of the controllability Grammian. A natural relaxation of the problem is to allow the binary $\{0,1\}$ variable indicating whether an actuator is used at a given time to take on values in the closed interval $[0,1]$.
openaire   +2 more sources

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source