Results 21 to 30 of about 15,621 (306)

Investigation of Spaceflight Induced Changes to Astronaut Microbiomes

open access: yesFrontiers in Microbiology, 2021
The International Space Station (ISS) is a uniquely enclosed environment that has been continuously occupied for the last two decades. Throughout its operation, protecting the health of the astronauts on-board has been a high priority.
Michael D. Morrison   +9 more
doaj   +1 more source

A Review of Hydrogen Sensors for ECLSS: Fundamentals, Recent Advances, and Challenges

open access: yesApplied Sciences, 2023
The development of hydrogen sensors with high detection accuracy, fast response times, long calibration periods, and good stability has become the focus of the space station environmental control and life support subsystem.
Chenghao Jia   +6 more
doaj   +1 more source

Astronaut Visual Tracking of Flying Assistant Robot in Space Station Based on Deep Learning and Probabilistic Model

open access: yesInternational Journal of Aerospace Engineering, 2018
Real-time astronaut visual tracking is the most important prerequisite for flying assistant robot to follow and assist the served astronaut in the space station.
Rui Zhang, Zhaokui Wang, Yulin Zhang
doaj   +1 more source

Non-invasive monitoring of cardiac function through Ballistocardiogram: an algorithm integrating short-time Fourier transform and ensemble empirical mode decomposition

open access: yesFrontiers in Physiology, 2023
The Ballistocardiogram (BCG) is a vibration signal that is generated by the displacement of the entire body due to the injection of blood during each heartbeat. It has been extensively utilized to monitor heart rate. The morphological features of the BCG
Jingda Feng   +7 more
doaj   +1 more source

Learn to Few-Shot Segment Remote Sensing Images from Irrelevant Data

open access: yesRemote Sensing, 2023
Few-shot semantic segmentation (FSS) is committed to segmenting new classes with only a few labels. Generally, FSS assumes that base classes and novel classes belong to the same domain, which limits FSS’s application in a wide range of areas.
Qingwei Sun   +5 more
doaj   +1 more source

Temporal Characteristics of the Oropharyngeal and Nasal Microbiota Structure in Crewmembers Stayed 180 Days in the Controlled Ecological Life Support System

open access: yesFrontiers in Microbiology, 2021
Confined experiments are carried out to simulate the closed environment of space capsule on the ground. The Chinese Controlled Ecological Life Support System (CELSS) is designed including a closed-loop system supporting 4 healthy volunteers surviving for
Yanwu Chen   +9 more
doaj   +1 more source

How do Astronaut Candidate Profiles differ from Airline Pilot Profile

open access: yes, 2011
Sixteen years after the second Europe-wide astronaut selection campaign, the European Space Agency started the third campaign by putting out a call for new astronauts in 2008.
Peter Maschke   +5 more
core   +1 more source

Understanding the Complexities and Changes of the Astronaut Microbiome for Successful Long-Duration Space Missions

open access: yesLife, 2022
During space missions, astronauts are faced with a variety of challenges that are unique to spaceflight and that have been known to cause physiological changes in humans over a period of time.
Donatella Tesei   +3 more
doaj   +1 more source

COMPASS: Computations for Orientation and Motion Perception in Altered Sensorimotor States

open access: yesFrontiers in Neural Circuits, 2021
Reliable perception of self-motion and orientation requires the central nervous system (CNS) to adapt to changing environments, stimuli, and sensory organ function.
Victoria G. Kravets   +3 more
doaj   +1 more source

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