Results 21 to 30 of about 259,843 (288)

FFC NMR Relaxometer with Magnetic Flux Density Control

open access: yesJournal of Low Power Electronics and Applications, 2019
This paper describes an innovative solution for the power supply of a fast field cycling (FFC) nuclear magnetic resonance (NMR) spectrometer considering its low power consumption, portability and low cost.
António Roque   +4 more
doaj   +1 more source

Fire-derived organic carbon in soil turns over on a centennial scale [PDF]

open access: yesBiogeosciences, 2012
Pyrogenic carbon (PyC), the residue of an incomplete combustion of biomass, is considered as a carbon (C) sink due to its assumed stability in soil. PyC turnover time estimated using two modelling approaches, based on data from 16 published studies (< ...
N. Singh   +3 more
doaj   +1 more source

Off-resonance magnetisation transfer contrast (MTC) MRI using fast field-cycling (FFC) [PDF]

open access: yes, 2010
Peer ...
Choi, Chang-Hoon   +2 more
core   +1 more source

Molecular Dynamics of Water in Wood Studied by Fast Field Cycling Nuclear Magnetic Resonance Relaxometry

open access: yesBioResources, 2016
Water plays a very important role in wood and wood products. The molecular motion of water in wood is susceptible to thermal activation. Thermal energy makes water molecules more active and weakens the force between water and wood; therefore, the water ...
Xinyu Li, Ximing Wang, Minghui Zhang
doaj   +1 more source

Picoliter Well Array Chip-Based Digital Recombinase Polymerase Amplification for Absolute Quantification of Nucleic Acids. [PDF]

open access: yesPLoS ONE, 2016
Absolute, precise quantification methods expand the scope of nucleic acids research and have many practical applications. Digital polymerase chain reaction (dPCR) is a powerful method for nucleic acid detection and absolute quantification.
Zhao Li   +6 more
doaj   +1 more source

Advances in the Interpretation of Frequency-Dependent Nuclear Magnetic Resonance Measurements from Porous Material

open access: yesMolecules, 2019
Fast-field-cycling nuclear magnetic resonance (FFC-NMR) is a powerful technique for non-destructively probing the properties of fluids contained within the pores of porous materials. FFC-NMR measures the spin−lattice relaxation rate R 1 ( f )
David Faux   +3 more
doaj   +1 more source

A Mini-Review: Pyridyl-Based Coordination Polymers for Energy Efficient Electrochromic Application

open access: yesFrontiers in Energy Research, 2021
Electrochromic devices (ECDs) have a broad range of application prospects in many important energy efficient optoelectronic fields, such as smart windows, anti-glare rearview mirrors, low-energy displays, and infrared camouflage.
Shiyou Liu   +5 more
doaj   +1 more source

Flour derived porous carbon as anode for highly robust potassium-ion batteries

open access: yesFrontiers in Energy Research, 2022
Potassium-ion batteries (PIBs) have attracted increasing research interest because of the natural abundance and low cost of potassium. Nevertheless, lacking of suitable anode materials that can deliver high reversible capacity and long cycle life highly ...
Yong Liu, Zhen Gong, Liqing Li
doaj   +1 more source

Study of a Liquid Plug-Flow Thermal Cycling Technique Using a Temperature Gradient-Based Actuator

open access: yesSensors, 2014
Easy-to-use thermal cycling for performing rapid and small-volume DNA amplification on a single chip has attracted great interest in the area of rapid field detection of biological agents. For this purpose, as a more practical alternative to conventional
Yusuke Fuchiwaki, Hidenori Nagai
doaj   +1 more source

Home - About - Disclaimer - Privacy