Results 41 to 50 of about 2,226,241 (294)

Long-term optical variability of PKS 2155-304 [PDF]

, 2010
Aims: The optical variability of the blazar PKS 2155-304 is investigated to characterise the red noise behaviour at largely different time scales from 20 days to O(>10 yrs).
Aharonian, Aharonian, Aharonian, Akerlof, Bak, Brindle, Carini, Courvoisier, D. Horns, Dendy, Emmanoulopoulos, Falomo, Gaur, Griffiths, Hamuy, Heidt, Hughes, Jannuzi, Kotilainen, Lainela, Lomb, M. A. Kastendieck, M. C. B. Ashley, Malkov, Mead, Miller, Osterman, Paltani, Pesce, Pica, Pojmanski, Press, Rieger, Scargle, Simonetti, Sivron, Smith, Smith, Timmer, Tommasi, Treves, Ulrich, Urry, Zhang   +43 more
core   +1 more source

Discussion of Wind Turbine Performance Based on SCADA Data and Multiple Test Case Analysis

Energies, 2022
This work is devoted to the formulation of innovative SCADA-based methods for wind turbine performance analysis and interpretation. The work is organized as an academia–industry collaboration: three test cases are analyzed, two with hydraulic pitch ...
Davide Astolfi, Ravi Pandit, Ludovico Terzi, Andrea Lombardi   +3 more
doaj   +1 more source

The decay of optical emission from the Gamma-Ray Burst GRB 970228 [PDF]

, 1997
We present the R_c band light curve of the optical transient (OT) associated with GRB970228, based on re-evaluation of existing photometry. Data obtained until April 1997 suggested a slowing down of the decay of the optical brightness.
C. A. Meegan, C. Kouveliotou, C. Robinson, D Eichler, F. D. Macchetto, G. J. Fishman, HL Johnson, J Van Paradijs, J. Bloom, J. Heise, J. in't Zand, J. Telting, J. van Paradijs, JA Holtzman, K Sahu, K. C. Sahu, L. Petro, M. Livio, M. Pettini, MS Bessel, MS Bessell, N. Tanvir, P Mészáros, P. J. Groot, PS Thé, R. G. M. Rutten, R. G. Strom, T Piran, T. Galama   +28 more
core   +3 more sources

Small wind turbine power curve comparison

AFRICON 2009, 2009
This paper focus is on the small wind turbines resource potential estimation. Assessment is done for seven selected small wind turbines and one measured set of wind speed data with the micropower optimization modeling tool HOMER. Goal was to investigate how estimated energy production and economical parameters are sensitive to the selection of small ...
Šimić, Zdenko, Božičević Vrhovčak, Maja, Šljivac, Damir   +2 more
openaire   +2 more sources

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Multivariate SCADA Data Analysis Methods for Real-World Wind Turbine Power Curve Monitoring

Energies, 2021
Due to the stochastic nature of the source, wind turbines operate under non-stationary conditions and the extracted power depends non-trivially on ambient conditions and working parameters.
Davide Astolfi, Francesco Castellani, Andrea Lombardi, Ludovico Terzi   +3 more
doaj   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Application of resettable elements for electrical protection of solar batteries

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018
The manifestation and formation of various defects in the process of exploitation in real photovoltaic cells and their compounds as well as their work in the regime of changing non-uniform illumination lead to the so-called series and parallel ...
A. S. Tonkoshkur, A. V. Ivanchenko, L. V. Nakashydze, S. V. Mazurik   +3 more
doaj   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash, Anis Rabbani Nourani, A. K. M. Fazlur Rahman, Dima Ezmigna, Tarig Ali‐Dinar   +4 more
wiley   +1 more source

Variability of the Wind Turbine Power Curve

Applied Sciences, 2016
Wind turbine power curves are calibrated by turbine manufacturers under requirements stipulated by the International Electrotechnical Commission to provide a functional mapping between the mean wind speed v ¯ and the mean turbine power output
Mahesh M. Bandi, Jay Apt
doaj   +1 more source