Results 151 to 160 of about 1,137,089 (312)

NASA Global Atmospheric Sampling Program (GASP) data report for tapes VL0010 and VL0012 [PDF]

open access: yes
The GASP atmospheric trace constituent data currently available are considered. Included on tapes are in-situ measurements of atmospheric ozone, carbon monoxide, water vapor, and clouds, data from laboratory analysis of filters exposed in flight, and ...
Dudzinski, T. J.   +3 more
core   +1 more source

Effect of Atomic Layer Deposition of Ultra‐Thin Oxide on Reactivity and Durability of Perovskite Oxygen Electrodes

open access: yesAdvanced Materials, EarlyView.
This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo   +8 more
wiley   +1 more source

Multi-sensor data fusion for autonomous flight of unmanned aerial vehicles in complex flight environments

open access: yesDrone Systems and Applications
The flight environment of unmanned aerial vehicles faces various challenges. To effectively navigate and perform tasks, they need to effectively integrate multiple sensors.
Kun Yue
doaj   +1 more source

ARASF Flight Data Catalogue - Flight A575 (14-Sept-1997)

open access: yes, 1997
Previously curated at: http://cedadocs.ceda.ac.uk/1068/ The publish date on this item was its original published date. Main files in this record: ARASF_Flight_Data_Catalogue_-_Flight_A575_(14-Sept-1997).pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend.
openaire   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

open access: yesAdvanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi   +11 more
wiley   +1 more source

Automatic Detection of Large-scale Flux Ropes and Their Geoeffectiveness with a Machine-learning Approach

open access: yesThe Astrophysical Journal
Detecting large-scale flux ropes (FRs) embedded in interplanetary coronal mass ejections (ICMEs) and assessing their geoeffectiveness are essential, since they can drive severe space weather. At 1 au, these FRs have an average duration of 1 day.
Sanchita Pal   +7 more
doaj   +1 more source

Design and implementation of DATA logging and stabilization system for a UAV

open access: yesHeliyon
In this paper integration of Micro Electro Mechanical Systems (MEMS) based Inertial Measurement Unit (IMU) and Global positioning System are used for data logging. This paper presents the design and implementation of a data logging system for an Unmanned
Ganesh Kumar Siva Sivamani   +1 more
doaj   +1 more source

ARASF Flight Data Catalogue - Flight A571 (18-Aug-1997)

open access: yes, 1997
Previously curated at: http://cedadocs.ceda.ac.uk/1065/ The publish date on this item was its original published date. Main files in this record: ARASF_Flight_Data_Catalogue_-_Flight_A571_(18-Aug-1997).pdf Item originally deposited with Centre for Environmental Data Analysis (CEDA) document repository by Miss Poppy Townsend.
openaire   +1 more source

Space radiation studies [PDF]

open access: yes
Two Active Radiation Dosimeters (ARD's) flown on Spacelab 1, performed without fault and were returned to Space Science Laboratory, MSFC for recalibration. During the flight, performance was monitored at the Huntsville Operations Center (HOSC).

core   +1 more source

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