Results 121 to 130 of about 128,880 (312)

night and moon observations of the HEGRA Cherenkov telescope [PDF]

, 2007
During the 1997 outburst of Mkn 501 extended observations in the presence of moonlight have been carried out with the HEGRA Cherenkov telescope CT1. Here we present the Mkn 501 energy spectrum derived from this moon data as well as the combined moon and ...
The Hegra Collaboration, Cherenkov Telescope   +1 more
core  

Self‐Reported Versus Objectively Logged Social Media Use: Implications for Measurement in Eating Disorder Research

International Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Self‐reported frequency measures of social media use (e.g., “How often do you use social media?”) are convenient, yet their criterion validity against objective behavioral data remains largely untested in eating disorder research. We compared self‐reports of TikTok use with objective data extracted from TikTok datafiles.
Scott Griffiths, Emma Halliwell, Harish Kannan, Ben Stone, Wesley Grey, Noa Brittain, Eden Shaveet, Emily Harris   +7 more
wiley   +1 more source

Lucky exposures: diffraction limited astronomical imaging through the atmosphere [PDF]

, 2003
The resolution of astronomical imaging from large optical telescopes is usually limited by the blurring effects of refractive index fluctuations in the Earth’s atmosphere. By taking a large number of short exposure images through the atmosphere, and then
Tubbs, Robert Nigel
core   +2 more sources

Transendocardial injection of expanded autologous CD34+ cells after myocardial infarction: Design of the EXCELLENT trial

ESC Heart Failure, Volume 12, Issue 2, Page 1455-1463, April 2025.
Abstract Aims The extent of irreversible cardiomyocyte necrosis after acute myocardial infarction (AMI) is a major determinant of residual left ventricular (LV) function and clinical outcome. Cell therapy based on CD34+ cells has emerged as an option to help repair the myocardium and to improve outcomes.
Jerome Roncalli, François Roubille, Nicolas Meyer, Giulio Pompilio, Lionel Leroux, Philippe Henon, Guillaume Trebuchet, Anthony Criquet, Matthieu de Kalbermatten, Eric Saloux, Alain Manrique, Pierre‐Yves Marie, Deepak L. Bhatt, Scott D. Solomon, Gilles Montalescot, David E. Newby, Faiez Zannad, on behalf of the EXCELLENT Trial Investigators   +17 more
wiley   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

InfoScience, EarlyView.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong, Zhenyu Wang, Xu Li, Guo Tang, Sizhe Wang, Jiyuan Huang, Guochao Wang, Shuhua Yan, Wenzhao Sun   +8 more
wiley   +1 more source

Drivers and Challenges of Micro‐Irrigation Adoption and Intensity in India: A Study of Four States

Irrigation and Drainage, EarlyView.
ABSTRACT India's food security relies substantially on groundwater, but inefficient irrigation is seriously depleting this resource. Micro‐irrigation (MI) improves irrigation application efficiency and productivity, yet adoption remains low. This study examines MI adoption across four major Indian states—Uttar Pradesh, Maharashtra, Madhya Pradesh and ...
Gurpreet Singh, Vasant P. Gandhi, Arnab K. Laha   +2 more
wiley   +1 more source

First M87 Event Horizon Telescope Results. III. Data Processing and Calibration [PDF]

, 2019
We present the calibration and reduction of Event Horizon Telescope (EHT) 1.3 mm radio wavelength observations of the supermassive black hole candidate at the center of the radio galaxy M87 and the quasar 3C 279, taken during the 2017 April 5-11 ...
, Event Horizon Telescope Collaborat, Savolainen, Tuomas, , Event Horizon Telescope Collaboration   +2 more
core   +1 more source

Coherent Stokes Raman Scattering for Simultaneous Measurement of CO2 and CH4 Temperatures

Journal of Raman Spectroscopy, EarlyView.
A three‐beam hybrid fs/ps CSRS method is employed to excite the rovibrational transitions in the Fermi‐dyad of CO2$$ {}_2 $$ and the v2$$ {v}_2 $$ mode of CH4$$ {}_4 $$. Time‐domain spectroscopic models are developed to extract the fuel and flame temperature profiles from experimental CH4$$ {}_4 $$ and CO2$$ {}_2 $$ spectra in a diffusion flame ...
Alexander M. Warner, Robert P. Lucht, Rohan M. Gejji, Carson D. Slabaugh   +3 more
wiley   +1 more source

Debris Disk around Star HR 8799 [PDF]

, 2011
This infrared image, captured by the Spitzer Space Telescope shows a giant circle of very fine dust around the young star HR 8799, located to 129 light-years away in the constellation PegasusHave a prior knowledge about planetary systemEducação Superior::
Spitzer Space Telescope, National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory, California Institute of Technology   +3 more
core   +2 more sources