Results 101 to 110 of about 669,973 (330)

Erosive effect of an antihistamine liquid formulation on bovine teeth: influence of exposure time

open access: yesBrazilian Journal of Oral Sciences, 2015
Aim: To evaluate, in vitro, the effect of an oral antihistamine liquid formulation on roughness and topography of bovine enamel and the influence of exposure time on its erosive effect.
Viviane Santos da Silva Pierro   +5 more
doaj   +1 more source

Direct measurements of helium and hydrogen ion concentration and total ion density to an altitude of 940 kilometers [PDF]

open access: yes
Measurement of ion concentration and total ion density in exosphere using mass spectrometer and electrostatic ...
Brace, L. H.   +3 more
core   +1 more source

Method of detecting and counting bacteria in body fluids [PDF]

open access: yes, 1973
A novel method is reported for determining bacterial levels in urine samples, which method depends on the quantitative determination of bacterial adenosine triphosphate (ATP) in the presence of non-bacterial ATP.
Chappelle, E. W., Picciolo, G. L.
core   +1 more source

Hydrogen bubble nucleation by self-clustering: Density Functional Theory and statistical models studies using tungsten as a model system

open access: yes, 2017
Low-energy hydrogen irradiation is known to induce bubble formation in tungsten, while its atomistic mechanisms remain little understood. Using first-principles calculations and statistical models, we studied the self-clustering behavior of hydrogen in ...
Hou, Jie   +6 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA

open access: yesBrazilian Oral Research, 2010
This in vitro study evaluated (1) the dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA; and (2) the pH of these solutions before and after the experiment.
Luis Eduardo Duarte Irala   +4 more
doaj   +1 more source

Factors Affecting Nickel-oxide Electrode Capacity in Nickel-hydrogen Cells [PDF]

open access: yes, 1984
The nickel-oxide electrode common to the nickel hydrogen and nickel cadmium cell is by design the limiting or capacity determining electrode on both charge and discharge.
Ritterman, P. F.
core   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Sputtering of Oxygen on Nb Surface by Hydrogen Ions [PDF]

open access: yes, 2003
The rate of oxygen removal from an oxygen-doped Nb membrane by hydrogen ion sputtering was examined by measuring the change in the sticking coefficient of H2, α.
Busnyuk Andrei   +5 more
core   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

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