Results 21 to 30 of about 639,763 (263)
CALIBRATING PHOTOGRAMMETRIC AIRBORNE CAMERA SYSTEMS WITH DIFFRACTIVE OPTICAL ELEMENTS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 This paper presents a laboratory approach for geometric calibration of airborne camera systems. The setup uses an incoming laser beam, which is split by Diffractive Optical Elements (DOE) into a number of beams with precisely-known propagation directions.
D. Dahlke +6 more
doaj +1 more source
Characterization of a Micro-Opto-Mechanical Transducer for the Electric Field Strength
Proceedings, 2018 We report on a new optical sensing principle for measuring the electric field strength based on MEMS technology. This method allows for distortion-free and point-like measurements with high stability regarding temperature.
Wilfried Hortschitz +7 more
doaj +1 more source
The Instrument Design of the DLR Earth Sensing Imaging Spectrometer (DESIS)
Sensors, 2019 Whether for identification and characterization of materials or for monitoring of the environment, space-based hyperspectral instruments are very useful. Hyperspectral instruments measure several dozens up to hundreds of spectral bands.
David Krutz +19 more
doaj +1 more source
Surface acoustic wave coupling between micromechanical resonators
Communications Physics, 2022 As the size of mechanical resonators is decreased, their resonance frequencies increase and acoustic wave-like propagation in their substrate becomes important.
Hendrik Kähler +2 more
doaj +1 more source
IEEE Photonics Journal, 2014 A fiber-optic Fabry-Perot interferometer based on UV-curable polymer microhemisphere is proposed and demonstrated. The polymer microhemisphere is formed by adhering and solidifying a liquid microdroplet of UV-curable adhesive to the end face of a cleaved
X. L. Tan +5 more
doaj +1 more source
An 8 bit current steering DAC for offset compensation purposes in sensor arrays [PDF]
Advances in Radio Science, 2012 An 8 bit segmented current steering DAC is presented for the compensation of mismatch of sensors with current output arranged in a large arrays. The DAC is implemented in a 1.8 V supply voltage 180 nm standard CMOS technology.
G. Bertotti +6 more
doaj +1 more source
On Sensor Coverage by Mobile Sensors [PDF]
Proceedings of the 45th IEEE Conference on Decision and Control, 2006 We study the problem of using a small number of mobile sensors to monitor various threats in a geographical area. Using some recent results on stochastic sensor scheduling, we propose a stochastic sensor movement strategy. We present simple conditions under which it is not possible to maintain a bounded estimate error covariance for all the threats. We
Vijay Gupta 0001 +2 more
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
wiley +1 more source
MOEMS Based Single Chip Lorentz Force Magnetic Gradiometer
Proceedings, 2018 The functional principle of an optical gradient magnetic field sensor consisting of two independent laterally oscillating masses on a single chip is reported.
Matthias Kahr +7 more
doaj +1 more source