Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Zufeng Li"'
Publikováno v:
Electronics Letters, Vol 60, Iss 13, Pp n/a-n/a (2024)
Abstract In the humanoid robots, waist mechanism is an important structure to realize the whole body coordinated movement. This paper proposes a series–parallel mechanism of waist structure, and its kinematics and dynamics characteristics are studi
Externí odkaz:
https://doaj.org/article/c344d7b0287d4369b9bd6cd3b90576ff
Publikováno v:
Atmosphere, Vol 15, Iss 8, p 992 (2024)
Accurate water vapor information is crucial for improving the quality of numerical weather forecasting. Previous studies have incorporated tropospheric water vapor data obtained from a global navigation satellite system (GNSS) into numerical weather
Externí odkaz:
https://doaj.org/article/eb8bd87152ae4fd78132900b2290d61c
Publikováno v:
Atmosphere, Vol 14, Iss 8, p 1309 (2023)
Extreme rainfall is the main contributing factor to landslides. Therefore, it is of great significance to monitor and forecast short-term rainfall in landslide-prone areas. However, the spatial scale of landslide-prone areas is small, and traditional
Externí odkaz:
https://doaj.org/article/6039076710d04dec90fdbe877a35f84b
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 8730-8743 (2021)
Potential evapotranspiration (PET) is a key parameter for calculating drought monitoring index that is generally difficult to obtain. In addition, PET has low spatial resolution and can only be obtained at a site-based point. Therefore, retrieving PE
Externí odkaz:
https://doaj.org/article/3ecd9a8b472344dd9b0e28c3c84152ce
Publikováno v:
Fractal and Fractional, Vol 7, Iss 2, p 121 (2023)
This paper addresses the problems of structure design and trajectory tracking control of a mobile chassis of life support robots. First, a novel omnidirectional mobile chassis structure is proposed, which consists of three pairs of modular wheel sets
Externí odkaz:
https://doaj.org/article/9202f49ac59a43a9bd7d3cb64eda9400
Publikováno v:
Remote Sensing, Vol 15, Iss 1, p 4 (2022)
Offset tracking technology is widely studied to evaluate glacier surface displacements. However, few studies have used a cross-platform to this end. In this study, two heterogeneous data sources, Sentinel-1 and Landsat 8, from January 2019 to January
Externí odkaz:
https://doaj.org/article/e92b2c14945947c7b527b6245fd29f4b
Publikováno v:
Applied Sciences, Vol 12, Iss 21, p 11070 (2022)
The application research of ground change detection based on multi-temporal 3D models is attracting more and more attention. However, the conventional methods of using UAV GPS-supported bundle adjustment or measuring ground control points before each
Externí odkaz:
https://doaj.org/article/c401ac7c28c64b67bd988ae4aa7f8558
Publikováno v:
Remote Sensing, Vol 14, Iss 14, p 3435 (2022)
Atmospheric weighted mean temperature (Tm) is a key parameter used by the Global Navigation Satellite System (GNSS) for calculating precipitable water vapor (PWV). Some empirical Tm models using meteorological or non-meteorological parameters have be
Externí odkaz:
https://doaj.org/article/0ff2f9ff14b44b288bc6b6dd61af945f
Publikováno v:
Remote Sensing, Vol 14, Iss 10, p 2507 (2022)
Atmospheric water vapor is one of the important parameters for weather and climate studies. Generally, atmospheric water vapor can be monitored by some techniques, such as the Global Navigation Satellite System (GNSS), radiosonde (RS), remote sensing
Externí odkaz:
https://doaj.org/article/7582ed855dc14ab893cf11b3692b0805
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 12, Iss 7, Pp JAMDSM0122-JAMDSM0122 (2018)
In this paper, a potential energy based slice grouping method was proposed to calculate the mesh stiffness for straight beveloid gears with parallel axes. The mathematical mesh stiffness model was derived. The finite element tooth contact model was d
Externí odkaz:
https://doaj.org/article/1275825b3024471e9504c5f07fd9a60f