Results 21 to 30 of about 4,049,670 (304)

European Space Lidar Activities.

open access: yesThe Review of Laser Engineering, 1995
Active laser remote sensing from space is recognised to be one of the most promising newmeans of obtaining essential atmospheric parameters on a global scale. This report gives anoverview on the ESA activities and will focus in the second part on the ongoing Doppler lidarsdevelopment at the German Aerospace Research Establishment (DLR).
openaire   +3 more sources

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai   +4 more
wiley   +1 more source

Optimizing calibration of fluxgate magnetometer offsets using magnetic holes in the earth’s magnetosheath

open access: yesEarth, Planets and Space
The offset of the fluxgate magnetometer (FGM) drifts slowly with time and temperature, requiring regular in-flight calibration. Recent studies utilizing magnetic holes have optimized calibration error to ~ 0.3 nT in the solar wind, but an order larger in
Xiaochen Gou   +9 more
doaj   +1 more source

Low-energy particle radiation environment at synchronous altitude [PDF]

open access: yes, 1972
The degradation of thermal control coatings of satellites due to the effects of low energy charged particles in the space environment is discussed. Data obtained from ATS-5 satellite measurement of proton and electron fluxes are presented. The variations
Lens, S. K., Shelley, E. G.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

A Deep Learning Approach for Removing Multi-Source Transient Interference in Satellite Magnetic Field Measurement

open access: yesSensors
Magnetic field measurements are essential for space science missions but are often contaminated by transient stray fields from spacecraft subsystems such as electrical and control units.
Ning Li   +4 more
doaj   +1 more source

THE INFLUENCE OF ‘GANG BARU’ TRADITIONAL MARKET ACTIVITIES IN THE USE OF PUBLIC SPACE IN SEMARANG CHINATOWN [PDF]

open access: yes, 2016
Chinatown is one of the commercial district in Semarang city, which continues to grow in the city center. It’s a 'generator' that drives a wide variety of economic activities, also self-actualization and disclosure of aspiration, expression of the people.
Fiton Dwi, Setiawan, Rina, Kurniati
core  

Excitable Patterns in Active Nematics [PDF]

open access: yes, 2010
We analyze a model of mutually-propelled filaments suspended in a two-dimensional solvent. The system undergoes a mean-field isotropic-nematic transition for large enough filament concentrations and the nematic order parameter is allowed to vary in space
B. Chakraborty   +5 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

A semi-empirical approach to simulating the Dst index in global MHD models of Earth’s magnetosphere

open access: yesEarth and Planetary Physics
The Dst index has been commonly used to measure the geomagnetic effectiveness of magnetic storm events for several decades. Based on Burton’s empirical Dst model and the global magneto-hydrodynamic (MHD) simulation of Earth’s magnetosphere, here we ...
JiaWen Yue   +3 more
doaj   +1 more source

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