Results 161 to 170 of about 596,755 (352)

TGFs, Gamma‐Ray Glows, and Direct Lightning Strike Radiation Observed During a Single Flight of a Balloon‐Borne Gamma‐Ray Spectrometer

Earth and Space Science
Terrestrial gamma‐ray flashes (TGFs) and other high‐energy radiation phenomena related to thunderstorms remain incompletely understood since their discovery nearly 30 years ago.
Christopher Helmerich, Todd McKinney, Everett Cavanaugh, Sarah Dangelo   +3 more
doaj   +1 more source

GAMMA RAY SPECTROMETRY

, 1954
E. C. Anderson
openalex   +2 more sources

Can the Gamma Rays of Radium be Produced Artificially in an X-Ray Bulb? [PDF]

, 1914
F. Dessauer
openalex   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Section on Prospects for Dark Matter Detection of the White Paper on the Status and Future of Ground-Based TeV Gamma-Ray Astronomy

, 2008
This is a report on the findings of the dark matter science working group for the white paper on the status and future of TeV gamma-ray astronomy. The white paper was commissioned by the American Physical Society, and the full white paper can be found on
Baltz, EA, Bertone, G, Buckley, J, Byrum, K, Dingus, B, Fegan, S, Ferrer, F, FNAL, Gondolo, P, Hall, J, Hooper, D, Horan, D, Horan, D, Insti. d' Astrophysique, Koushiappas, S, Krawczynksi, H, LANL, LeBohec, S, Pohl, M, Profumo, S, Silk, J, Tait, T, Vassilev, V, Wakely, S, Wanger, R, Wood, M, Zaharijas, G   +26 more
core  

Green Solvent Enabled Perovskite Ink for Ambient‐Air‐Processed Efficient Inkjet‐Printed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
This study explores an eco‐friendly solvent with 1,3‐dimethyl‐2‐imidazolidinone for developing perovskite ink, enhancing grain size and formation of purer phase perovskite. The inkjet‐printed perovskite solar cells demonstrated a remarkable improvement in device power conversion efficiency from 14.6% to almost 17.8%, highlighting sustainable innovation
Vinayak Vitthal Satale, Sagnik Chowdhury, Asmaa Mohamed, Do‐Hyung Kim, Sinyoung Cho, Jong‐Soo Lee, Jae‐Wook Kang   +6 more
wiley   +1 more source

Diffuse Extragalactic Gamma Rays and Gamma Ray Bursts

, 1998
If gamma ray bursts produce a total energy of 10^54 ergs and this energy is concentrated on the high energy tail of the spectrum E> 1 TeV, then they may account for the observed diffuse extragalactic gamma ray emission for energies > 100 MeV. Such an energy could be released if the GRB's are produced by the burning of the total mass of a neutron ...
openaire   +2 more sources

Gamma ray astronomy

Surveys in High Energy Physics, 2001
Abstract The energy domain between 10 MeV and hundreds of GeV is an essential one for the multifrequency study of extreme astrophysical sources. The understanding of spectra of detected gamma rays is necessary for developing models for acceleration, emission, absorption and propagation of very high-energy particles at their sources and in space.
openaire   +3 more sources

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

Advanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee, Jieun Jung, Hyeongoh Park, Dongwuk Jung, Doyune Kim, Changeui Hong, Seungbeom Kang, Hyunsoo Kim, Tae Kim, Jongho Lee   +9 more
wiley   +1 more source

Nanodiamond‐Infused Microgels for pH‐Tunable Rheology, Lubrication, and UV Protection

Advanced Functional Materials, EarlyView.
Microgels consisting of swollen polyacrylic acid polymer networks, impregnated with nanodiamonds provide protection from ultraviolet (UV) radiation harmful to human health. Nanodiamonds enable UV blockage and control of the rheology (flow) and lubrication (skin‐feel) of these microgel‐skincare‐mimics.
Pallav K. Jani, Sarvesh A. Nadkarni, Katherine J. Ernst, Barbara V. Farias, Chloe G. Hincher, Oluwatobi A. Ojuade, Yug C. Saraswat, Prottasha Sarker, Donald O. Freytes, Lilian C. Hsiao, Saad A. Khan   +10 more
wiley   +1 more source