Results 31 to 40 of about 221,927 (260)

Filling Factor Dependence of the Fractional Quantum Hall Effect Gap [PDF]

open access: yesPhysical Review Letters, 2008
We directly measure the chemical potential jump in the low-temperature limit when the filling factor traverses the nu = 1/3 and nu = 2/5 fractional gaps in two-dimensional (2D) electron system in GaAs/AlGaAs single heterojunctions. In high magnetic fields B, both gaps are linear functions of B with slopes proportional to the inverse fraction ...
Khrapai VS   +7 more
openaire   +5 more sources

Enhanced Measurements of Leaf Area Density with T-LiDAR: Evaluating and Calibrating the Effects of Vegetation Heterogeneity and Scanner Properties

open access: yesRemote Sensing, 2018
Reliable measurements of the 3D distribution of Leaf Area Density (LAD) in forest canopy are crucial for describing and modelling microclimatic and eco-physiological processes involved in forest ecosystems functioning. To overcome the obvious limitations
Maxime Soma   +3 more
doaj   +1 more source

Evidence for Independent Heritability of the Glycation Gap (Glycosylation Gap) Fraction of HbA1c in Nondiabetic Twins [PDF]

open access: yesDiabetes Care, 2006
OBJECTIVE—HbA1c (A1C) is substantially determined by genetic factors not shared in common with glucose. Fractions of the variance in A1C, the glycation gap (GG; previously called the glycosylation gap) and the hemoglobin glycosylation index, correlate with diabetes complications.
Cohen, RM   +8 more
openaire   +3 more sources

Digital Cover Photography for Estimating Leaf Area Index (LAI) in Apple Trees Using a Variable Light Extinction Coefficient

open access: yesSensors, 2015
Leaf area index (LAI) is one of the key biophysical variables required for crop modeling. Direct LAI measurements are time consuming and difficult to obtain for experimental and commercial fruit orchards.
Carlos Poblete-Echeverría   +4 more
doaj   +1 more source

Hard color-singlet exchange in dijet events in proton-proton collisions at $\sqrt{s} = 13$ TeV

open access: yesSciPost Physics Proceedings, 2022
We present a measurement of events with two jets separated by a pseudorapidity gap (jet-gap-jet). The signature is expected from hard color-singlet exchange. The jets are reconstructed with the CMS detector. The highest $p_\text{T}$ jets have $p_\text{T}^
Cristian Baldenegro Barrera
doaj   +1 more source

Magnetorheological chemical compound polishing of single crystal SiC substrate

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
Based on the magnetorheological chemical composite polishing principle of Fenton reaction, the magnetorheological chemical composite polishing experiment was carried out on single crystal SiC substrate, and the influence of process parameters on the ...
Huazhuo LIANG   +4 more
doaj   +3 more sources

Radiobiological rationale for compensation for gaps in radiotherapy regimes by post-gap acceleration of fractionation

open access: yesThe British Journal of Radiology, 1990
Abstract It is now recognized that clonogenic tumour cells may repopulate vigorously during radiotherapy. Gaps in treatment schedules which lead to prolongation of overall treatment time may therefore cause sparing of tumour. Acute-responding normal tissues will also be spared if repopulation by surviving stem cells takes place. However,
T E, Wheldon, A, Barrett
openaire   +2 more sources

Effects of topography, soil type and forest age on the frequency and size distribution of canopy gap disturbances in a tropical forest [PDF]

open access: yesBiogeosciences, 2013
Treefall gaps are the major source of disturbance in most tropical forests. The frequency and size of these gaps have important implications for forest ecosystem processes as they can influence the functional trait distribution of tree communities, stand-
E. Lobo, J. W. Dalling
doaj   +1 more source

Hydrodynamic effects of hybrid nanofluid jet on the heat transfer augmentation

open access: yesCase Studies in Thermal Engineering, 2023
In industrial and energy systems, precise temperature control is indispensable. This study investigates the impact of hybrid nanofluids and certain jet hydrodynamic effects on enhancing the cooling efficiency on a heated copper surface.
Emmanuel O. Atofarati   +2 more
doaj   +1 more source

Symmetric-gapped surface states of fractional topological insulators

open access: yesPhysical Review B, 2017
5 pages, 33 references and 2 pages of supplemental ...
CHO, GIL YOUNG   +2 more
openaire   +4 more sources

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