Results 71 to 80 of about 2,465,580 (245)
Feasibility Study for an Airborne N2O Lidar [PDF]
EPJ Web of ConferencesNitrous oxide, N2O is the third most important anthropogenic greenhouse gas after carbon dioxide and methane. The major source is nitrogen fertilization in croplands.
Kiemle Christoph +3 more
doaj +1 more source
Advanced Science, EarlyView.A graphene‐metal hybrid transmissive metasurface enables electrically tunable mid‐infrared transmission modulation through ionic gel top gating. By combining graphene with a metallic slit metasurface, high modulation efficiency and broadband operation are achieved simultaneously, demonstrating efficient electrical control of mid‐infrared transmission ...
Heonhak Ha +4 more
wiley +1 more source
Laser remote sensing of the planetary boundary layer
Meteorologische Zeitschrift, 2002 Laser remote sensing techniques are new tools for experimental studies of the planetary boundary layer. Backscatter lidar can make use of differences in the aerosol distribution to characterize the layer structure and to reveal properties of the ...
Jens Bösenberg, Holger Linné
doaj +1 more source
Advanced Electronic Materials, EarlyView.A high‐performance strain‐compensated InGaAs/GaAsP superlattice SWIR photodetector was successfully grown by MOCVD on a scalable 100 mm GaAs platform. Combining excellent structural quality with strong optoelectronic performance, the device delivers a low dark current density of 2.3 × 10−7 A/cm2 and a detectivity of 1.9 × 1011 Jones at 1100 nm ...
Rémy Tribout +19 more
wiley +1 more source
Airborne lidar observations of water vapour variability and transport [PDF]
, 2012 Water vapour, a minor constituent of the earth’s atmosphere, plays a major role in the radiation budget and the water cycle with important implications for weather and climate. Due to the heterogeneous distribution of its sources, evaporation, and sinks,
Fischer, Lucas +4 more
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Biological Diversity, EarlyView.We compared Landsat‐8 OLI, SPOT, and hyperspectral data for estimating vascular plant diversity in China's Hunshandak Sandland. SPOT data showed the strongest correlation with alpha diversity, followed by hyperspectral data, with Landsat‐8 performing the weakest.
Ying Ye +3 more
wiley +1 more source
EPJ Web of Conferences, 2018 The MEthane Remote sensing Lidar missioN (MERLIN), currently in phase C, is a joint cooperation between France and Germany on the development of a spatial Integrated Path Differential Absorption (IPDA) LIDAR (LIght Detecting And Ranging) to conduct ...
Olivier Chomette +7 more
doaj +1 more source
Optics Express, 2020 The differential absorption lidar (DIAL) has been proposed as an effective method for detecting polluted gases in the atmosphere. In this paper, we present a compact and movable ozone differential absorption (O3-DIAL) based on an all-solid-state and ...
Pan Liu +6 more
semanticscholar +1 more source
Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers
The Curriculum Journal, EarlyView.Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová +6 more
wiley +1 more source
Airborne water vapour and wind lidar measurements of latent heat fluxes during COPS 2007 [PDF]
, 2010 During the Convective and Orographically-induced Precipitation Study (COPS) in July 2007 over the Black Forest Mountains in south-western Germany, tropospheric profiles of water vapour and wind were measured with a differential absorption lidar (DIAL ...
Kiemle, Christoph +3 more
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