scholarly journals Joint characterization of vegetation by satellite observations from visible to microwave wavelengths: A sensitivity analysis

2001 ◽  
Vol 106 (D18) ◽  
pp. 20665-20685 ◽  
Author(s):  
Catherine Prigent ◽  
Filipe Aires ◽  
William Rossow ◽  
Elaine Matthews
2021 ◽  
Vol 550 ◽  
pp. 152941
Author(s):  
Seok Bin Seo ◽  
Edward Matthew Duchnowski ◽  
Miles O'Neal ◽  
Arthur T. Motta ◽  
Florian Passelaigue ◽  
...  

2018 ◽  
Vol 45 (13) ◽  
pp. 6690-6701 ◽  
Author(s):  
Yan Yu ◽  
Olga V. Kalashnikova ◽  
Michael J. Garay ◽  
Huikyo Lee ◽  
Michael Notaro

Author(s):  
D. N. P. Murthy ◽  
E. Asgharizadeh

When it is not economical to carry out maintenance in-house, out-sourcing to an external agent is an alternate viable option. In this paper, we study a simple maintenance service contract involving a single agent (providing the maintenance service) and a single customer (owner of the equipment and recipient of the maintenance service). We develop a simple model to obtain the optimal strategies for both the customer and the agent. We give a complete characterization of the strategies along with some sensitivity analysis and discuss some extensions.


Author(s):  
Florian Dörner ◽  
Tobias Bettinger ◽  
Christian Schindler

The exact characterization of the wheel–rail normal contact situations is essential for its wear, fatigue, and guidance analysis. To simulate this contact, numerous input parameters are required. Many of them have to be estimated. The aim of this sensitivity analysis was to investigate the direct effects and interactions of the input parameters on the contact pressure distribution of a freight wagon wheel on a straight track. For this purpose, a finite element model was parametrized in such a way that all the parameters were continuous. This research demonstrates that the output parameters of the wheel–rail contact simulations have a broad deviation and the input variable with the most influence on the contact form and position is the lateral displacement of the wheelset. Nevertheless, the profile shape of the wheel and rail, the wheel radius, and the relative wheel–rail inclination are important input parameters as well, and also need to be considered for exact simulations of the wheel–rail contact. On the other hand, the deviation of material parameters of wheel and rail steel can be neglected.


Solar Energy ◽  
2016 ◽  
Vol 127 ◽  
pp. 96-108
Author(s):  
Christoph Rapp ◽  
Marc Steiner ◽  
Gerald Siefer ◽  
Andreas W. Bett

Author(s):  
Jhih-Wei You ◽  
Shi-Yu Huang ◽  
Ding-Ming Kwai ◽  
Yung-Fa Chou ◽  
Cheng-Wen Wu

2021 ◽  
Vol 147 (12) ◽  
pp. 05021008
Author(s):  
Dag Pasquale Pasca ◽  
Angelo Aloisio ◽  
Massimo Fragiacomo ◽  
Roberto Tomasi

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