Results 31 to 40 of about 1,400,600 (254)

Recovery and reanalysis of archived airborne gamma spectrometry data from the 1991 Dounreay survey [PDF]

, 2012
Archived Airborne Gamma Spectrometry (AGS) data from the 1991 NIREX characterisations of Caithness have been recovered. The separate gamma spectrometry and positional data streams for approximately 120000 measurements have been combined into a single ...
Cresswell, A., A.J. Cresswell
core   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Preflight Spectral Calibration of the Ozone Monitoring Suite-Nadir on FengYun 3F Satellite

Remote Sensing
The Ozone Monitoring Suite-Nadir (OMS-N) instrument is the first hyperspectral remote sensor in the ultraviolet band of China’s Fengyun series satellites. It can be used to detect several kinds of atmospheric constituents.
Qian Wang, Yongmei Wang, Na Xu, Jinghua Mao, Ling Sun, Entao Shi, Xiuqing Hu, Lin Chen, Zhongdong Yang, Fuqi Si, Jianguo Liu, Peng Zhang   +11 more
doaj   +1 more source

Accuracy and Reproducibility of Laboratory Diffuse Reflectance Measurements with Portable VNIR and MIR Spectrometers for Predictive Soil Organic Carbon Modeling

Sensors, 2022
Soil spectroscopy in the visible-to-near infrared (VNIR) and mid-infrared (MIR) is a cost-effective method to determine the soil organic carbon content (SOC) based on predictive spectral models calibrated to analytical-determined SOC reference data.
Sebastian Semella, Christopher Hutengs, Michael Seidel, Mathias Ulrich, Birgit Schneider, Malte Ortner, Sören Thiele-Bruhn, Bernard Ludwig, Michael Vohland   +8 more
doaj   +1 more source

Concept for improved radiometric calibration of radiance sources at the CHB facility [PDF]

, 2010
The Calibation Home Base (CHB) is a facility for the calibration of airborne imaging spectrometers such as APEX, ROSIS and in the future ARES, and for field spectrometers. Absolute radiometric calibration in the spectral range of 350–2500 nm is currently
Schötz, Paul, Fries, Jochen, Gege, Peter, Haschberger, Peter, Lenhard, Karim, Schwarz, Christian, Schwarzmaier, Thomas   +6 more
core  

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Concept For Fast Spectral Characterisation Of Imaging Spectrometers [PDF]

, 2010
For imaging spectrometers in the range of 350 - 2500 nm spectral characterization is accomplished currently at the Calibration Home Base (CHB) facility at DLR Oberpfaffenhofen using a Quartz-Tungsten-Halogen (QTH) lamp and a monochromator ...
Gege, Peter, Lenhard, Karim, Schwarz, Christian   +2 more
core  

The Radiance Standard RASTA of DLR's calibration facility for airborne imaging spectrometers [PDF]

, 2012
The German Aerospace Center (DLR) operates the Calibation Home Base (CHB) as a facility for the calibration of airborne imaging spectrometers and for field spectrometers.
T. Schwarzmaier, A. Baumgartner, K. Lenhard, Gege, Peter, P. Gege, Lenhard, Karim, Baumgartner, Andreas, Köhler, Claas, Schwarzmaier, Thomas, C. Köhler   +9 more
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Pre-Launch Calibration and Performance Evaluation of OMS-N Onboard the FY-3F Satellite

Remote Sensing
The Ozone Monitor Suite-Nadir (OMS-N) onboard the FY-3F satellite is a key payload for global atmospheric ozone and trace gas detection. The data quality depends on the accuracy of ground calibration.
Jinghua Mao, Wei Zhang, Yongmei Wang, Jinduo Wang, Pengda Li, Weipeng Huang, Jian Xu, Guojun Du, Yue Zhang, Fei Wei, Xiaohong Liu, Xiuqing Hu, Qian Wang, Yong Yang, Yefei Li, Zhuo Zhang, Xianguo Zhang   +16 more
doaj   +1 more source