Results 31 to 40 of about 432 (149)
Precise Onboard Time Synchronization for LEO Satellites
Navigation, 2022 Onboard time synchronization is an important requirement for a wide range of low Earth orbit (LEO) missions such as altimetry or communication services, and extends to future position, navigation, and timing (PNT) services in LEO.
Florian Kunzi, Oliver Montenbruck
doaj +1 more source
Time Transfer From GPS for Designing a SmallSat-Based Lunar Navigation Satellite System
Navigation, 2022 For the future lunar navigation satellite system (LNSS), a GPS-like constellation for the Moon, NASA has expressed interest in using a smallsat platform.
Sriramya Bhamidipati +2 more
doaj +1 more source
Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers
Navigation, 2022 In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input to global weather forecasting. The success of government programs such as COSMIC is now complemented by commercial low-cost cubesats.
Bryan C. Chan +10 more
doaj +1 more source
Multi-Frequency Simulation of Ionospheric Scintillation Using a Phase-Screen Model
Navigation, 2022 A fast Monte Carlo technique to simulate equatorial ionospheric scintillation on global navigation satellite system signals is proposed. The algorithm uses a single-layer phase-screen model of the ionosphere and the scintillation is expressed as a ...
Fernando D. Nunes +2 more
doaj +1 more source
ENGINEERING CONFERENCE, 27TH MAY, 1897. HARBOURS, DOCKS AND CANALS. THE VALUE AND SCOPE OF INLAND NAVIGATION. (ABSTRACT). [PDF]
Minutes of the Proceedings of the Institution of Civil Engineers, 1897 n ...
openaire +2 more sources
River Research and Applications, EarlyView.ABSTRACT In France, it is estimated that shads (Alosa spp.) have lost 69% of their historical range, mainly due to disrupted river connectivity. After an absence of one century, signs of their return in the Seine River have been recorded over the past two decades: adult and juvenile specimens have been caught by anglers or recorded at video‐counting ...
Céline Le Pichon +5 more
wiley +1 more source
Sustainable Development, EarlyView.ABSTRACT This study investigates stakeholder perspectives on mobilising private‐sector finance for climate adaptation in Southeast Asia, emphasising Hong Kong's role as a financial intermediary. Through semi‐structured interviews with diverse stakeholders, including practitioners, policymakers, insurers, and project developers, we employed a grounded ...
Laurence L. Delina +4 more
wiley +1 more source
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT Excessive water use in rice production is a major source of methane emissions, the dominant greenhouse gas from Vietnam's agricultural sector. Improving water‐use efficiency can enhance water security and reduce emissions, but achieving these gains requires substantial changes in farming practices and significant investment in supporting ...
Nhat‐Mai Nguyen +6 more
wiley +1 more source
Rise of the south: How Arab‐led maritime trade transformed China, 671–1371 CE
Asia‐Pacific Economic History Review, Volume 65, Issue 1, Page 3-38, March 2025.Abstract China's center of socioeconomic activities was in the North prior to the Tang dynasty but is in the South today. We demonstrate that Arab and Persian Muslim traders triggered that transition when they came to China in the late seventh century, by lifting maritime trade along the South Coast and re‐creating the South.
Zhiwu Chen, Zhan Lin, Kaixiang Peng
wiley +1 more source
Shape of Water: Power Dynamics for Supply Chain Resilience
Journal of Supply Chain Management, EarlyView.ABSTRACT The world is facing climate change‐driven disruptions such as extreme weather events, which affect nature as well as firms and their supply chains. Nonetheless, little is known about how supply chain players shape their socioecological resilience, including from a power perspective.
Aristides R. Oliveira Junior +3 more
wiley +1 more source