Results 51 to 60 of about 815,050 (359)

Harnessing high altitude solar power [PDF]

, 2009
As an intermediate solution between Glaser's satellite solar power (SSP) and ground-based photovoltaic (PV) panels, this paper examines the collection of solar energy using a high-altitude aerostatic platform.
Aglietti, G.S, Markvart, T., Redi, S., Tatnall, A.R.   +3 more
core   +2 more sources

Activation of notch signaling pathway is a potential mechanism for mucin2 reduction and intestinal mucosal barrier dysfunction in high-altitude hypoxia

Scientific Reports
High-altitude hypoxia can cause gastrointestinal issues and damage the intestinal mucosal barrier, which is crucial for digestion and nutrient absorption. The Notch signaling pathway affects this barrier’s integrity. This study explores the Notch pathway’
Ruhan Jia, Ying Han, Qinfang Zhu, Jingxuan Zhang, Huan Zhang, Maojia Ka, Yi Ma, Mohammed Gamah, Wei Zhang   +8 more
doaj   +1 more source

Hypoxia Exacerbates Inflammatory Acute Lung Injury via the Toll-Like Receptor 4 Signaling Pathway

Frontiers in Immunology, 2018
Acute lung injury (ALI) is characterized by non-cardiogenic diffuse alveolar damage and often leads to a lethal consequence, particularly when hypoxia coexists.
Gang Wu, Gang Wu, Gang Xu, Gang Xu, De-Wei Chen, De-Wei Chen, Wen-Xiang Gao, Wen-Xiang Gao, Jian-Qiong Xiong, Hai-Ying Shen, Yu-Qi Gao, Yu-Qi Gao   +11 more
doaj   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

Effect of inhaled nitric oxide on oxygen-carrying capacity of red blood cells and hypoxia tolerance in mice

Di-san junyi daxue xuebao, 2019
Objective To study the effects of nitric oxide (NO) inhalation on oxygen-carrying capacity of red blood cells and hypoxia tolerance in mice. Methods Peripheral blood from 8-week-old male mice was exposed to nitrogen gas containing NO in an oxygenation ...
SU Wenting, CUI Yu, LI Xiaoxu, GUAN Libin   +3 more
doaj   +1 more source

Thermalization of Sputtered Particles as the Source of Diffuse Radiation from High Altitude Meteors [PDF]

Adv.SpaceRes.39:574-582,2007, 2005
High altitude meteors become luminous at altitudes above $\sim$130 km, where the standard ablation theory of meteor light production is not applicable. The physical mechanism responsible for their glow has not been known. We present a model that explains their existence, morphology and lightcurves.
arxiv   +1 more source

Design of Double‐Sided Optical Coatings for Space Cooling Through Vertical Windows

Advanced Photonics Research, EarlyView.
Dual‐sided radiative cooling glass (DSRCG) utilizes the optical properties of epsilon‐near‐zero materials and ITO to exhibit directional emission toward the outdoor space, facilitating the heat dissipation of the glass, while exhibiting low emission toward the enclosure.
Hyunkyu Kwak, Do Hyeon Kim, Young Min Song   +2 more
wiley   +1 more source

Flight experience with altitude hold and Mach hold autopilots on the YF-12 aircraft at Mach 3 [PDF]

, 1978
The altitude hold mode of the YF-12A airplane was modified to include a high-pass-filtered pitch rate feedback along with optimized inner loop altitude rate proportional and integral gains.
Gilyard, G. B., Smith, J. W.
core   +1 more source

Evaluating cumulative ascent: Mountain biking meets Mandelbrot

, 2011
The problem of determining total distance ascended during a mountain bike trip is addressed. Altitude measurements are obtained from GPS receivers utilizing both GPS-based and barometric altitude data, with data averaging used to reduce fluctuations. The
D. C. RAPAPORT, Mandelbrot B. B.
core   +1 more source

Hydrochemical and quality assessment of irrigation water at the trans-himalayan high-altitude regions of Leh, Ladakh, India

Applied Water Science, 2022
A total of seventy irrigation water samples were collected from Leh, Ladakh, India, to determine their hydrochemistry profile and water quality for irrigation purposes.
Arup Giri, Vijay K. Bharti, Sahil Kalia, Krishna Kumar, Mayarngam Khansu   +4 more
doaj   +1 more source