Results 61 to 70 of about 10,201 (312)
Analysis and Verification of Aerodynamic Characteristics of Tianwen-1 Mars Parachute
Space: Science & Technology, 2022 The Mars parachute flight environment is supersonic, low-density, and low dynamic pressures. To ensure the operating performance and reliability, the design optimization and verification of the Tianwen-1 Mars parachute have been carried out.
Mingxing Huang, Wenqiang Wang, Jian Li
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FEBS Letters, EarlyView.Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile +8 more
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Subspace Method-based Blind SNR Estimation for Communication between Orbiters in Mars Exploration
ITM Web of Conferences, 2017 In Mars exploration the effective time of communication between orbiters is short, and the relative distance and gesture between them change fast. The signal to noise ratio (SNR) estimation is required in receiver to change adaptively the data rate in ...
Sun Ze-Zhou +2 more
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Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
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International Journal of Technology, 2020 Space exploration activities have long taken place to discover the shape of our solar system and the way all of its components work together. The closest celestial bodies to the Earth that are regarded by researchers as capable of becoming colonies ...
Dicky Rezady Munaf, Yasraf Amir Piliang
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Radio Occultation Exploration of Mars [PDF]
Symposium - International Astronomical Union, 1974 The radio occultation technique, consisting of the observation of changes in the phase, frequency, and amplitude of a radio signal from a spacecraft as it passes through the atmosphere of a planet before and after occultation, was first applied to measure the atmosphere of Mars with the Mariner IV spacecraft in 1965. The interpretation of these changes
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Molecular Oncology, EarlyView.Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu +11 more
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Molecular Oncology, EarlyView.This study highlights the importance of multi‐omic analyses in characterizing colorectal cancers. Indeed, our analysis revealed a rare CMS1 exhibiting dampened immune activation, including reduced PD‐1 expression, moderate CD8+ T‐cell infiltration, and suppressed JAK/STAT pathway.
Livia Concetti +10 more
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Overview and idea of the Mars UAV experimental platform development
Hangkong gongcheng jinzhanThe Mars surface is rugged and its environment is complex, the Mars UAVs provide a new idea for Mars exploration due to its high mobility and flexibility, and is an important paradigm for future deep space exploration.The differences between Mars and ...
TAN Liyan, MAO Yijun
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