Results 51 to 60 of about 291,001 (382)

Varying leptonic chemical potentials and spatial variation of primordial deuterium at high z

, 1997
We try to explain the spatial variation of primordial deuterium suggested by some observations by varying leptonic chemical potentials. The variation of the latter may take place in some scenarios of leptogenesis. The model predicts a large mass fraction
Dolgov, A. D., Pagel, B. E. J.
core   +1 more source

A New Solid Deuterium Source of Ultra-Cold Neutrons [PDF]

, 2000
In polarized neutron decay, the angular correlation between the neutron spin and the direction of emission of the electron is characterized by the coefficient A.
Bowles, T., Filippone, B. W., Geltenbort, P., Hill, R., Hoedl, S., Hogan, G., Ito, T. M., Lamoreaux, S., Liu, C.-Y., Marek, L., Morris, C. L., Saunders, A., Seestrom, S., Smith, D. A., Teasdale, W., Young, A., Yuan, J.   +16 more
core   +1 more source

Anticancer Effect of Deuterium Depleted Water - Redox Disbalance Leads to Oxidative Stress

Molecular & Cellular Proteomics, 2019
The antiproliferation effect of deuterium depleted water (DDW) is well documented, but the mechanism remained elusive. Here three complementary proteomics approaches applied to A549 cells revealed a disbalance brought about by DDW in mitochondria between
Xuepei Zhang, M. Gaetani, Alexey L. Chernobrovkin, R. Zubarev   +3 more
semanticscholar   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Heavy hydrogen in the stratosphere [PDF]

, 2003
We report measurements of the deuterium content of molecular hydrogen (H2) obtained from a suite of air samples that were collected during a stratospheric balloon flight between 12 and 33 km at 40º N in October 2002. Strong deuterium enrichments of up to
Engel, Andreas, Rhee, Tae Siek, Röckmann, Thomas   +2 more
core   +4 more sources

Revisiting the pre-main-sequence evolution of stars I. Importance of accretion efficiency and deuterium abundance

, 2017
Recent theoretical work has shown that the pre-main-sequence (PMS) evolution of stars is much more complex than previously envisioned. Instead of the traditional steady, one-dimensional solution, accretion may be episodic and not necessarily symmetrical,
Guillot, Tristan, Ida, Shigeru, Kunitomo, Masanobu, Takeuchi, Taku   +3 more
core   +2 more sources

The Impact of Deuterated CMOS processing on Gate Oxide Reliability [PDF]

, 2005
In recent literature, a controversy has arisen over the question whether deuterium improves the stability of the MOS gate dielectric. In particular, the influence of deuterium incorporation on the bulk oxide quality is not clear.
Baks, W.M., Hoekstra, E., Hof, A.J., Kovalgin, A.Y., Schaijk, R. van, Schmitz, J.   +5 more
core   +3 more sources

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Scintillation efficiency of liquid argon in low energy neutron-argon scattering [PDF]

, 2015
Experiments searching for weak interacting massive particles with noble gases such as liquid argon require very low detection thresholds for nuclear recoils.
Allkofer, Y., Amsler, C., Creus, W., Ferella, A. D., Rochet, J., Scotto-Lavina, L., Walter, M.   +6 more
core   +5 more sources