Results 131 to 140 of about 168,826 (332)

Modelling study of the impact of deep convection on the UTLS air composition – Part II: Ozone budget in the TTL avenue de la Recherche Scientifique, 45071 Orléans cedex 2, France [PDF]

open access: yes, 2005
International audienceIn this second part of a series of two papers which aim to study the local impact of deep convection on the chemical composition of the Upper Troposphere and Lower Stratosphere (UTLS), we focus on ozone simulation results using a ...
Cautenet, S.   +3 more
core   +1 more source

Could a nearby supernova explosion have caused a mass extinction?

open access: yes, 1993
We examine the possibility that a nearby supernova explosion could have caused one or more of the mass extinctions identified by palaeontologists.
Ellis, John, Schramm, David N.
core   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Trends in aerosol abundances and distributions [PDF]

open access: yes
The properties of aerosols that reside in the upper atmosphere are described. Special emphasis is given to the influence these aerosols have on ozone observation systems, mainly through radiative effects, and on ambient ozone concentrations, mainly ...
Clancy, R. T.   +9 more
core   +1 more source

Upper-atmosphere Aerosols: Properties and Natural Cycles [PDF]

open access: yes, 1992
The middle atmosphere is rich in its variety of particulate matter, which ranges from meteorite debris, to sulfate aerosols, to polar stratospheric ice clouds. Volcanic eruptions strongly perturb the stratospheric sulfate (Junge) layer.
Turco, Richard P.
core   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

Three dimensional dynamical and chemical modelling of the upper atmosphere [PDF]

open access: yes
Improved versions of a global 3-dimensional dynamical-chemical model of the stratospheric ozone layer were developed and utilized.
Cunnold, Derek M.   +2 more
core   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

open access: yesAdvanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo   +4 more
wiley   +1 more source

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