Results 71 to 80 of about 1,808,593 (336)
Communications satellite technology [PDF]
, 1964 Communications satellite technology - echo, relay, and syncom ...
Hedrich, A. L.
core +1 more source
FEBS Open Bio, EarlyView.Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn +4 more
wiley +1 more source
Research on Hopping Routing of Periodic Multiorbit LEO Satellites
International Journal of Aerospace EngineeringIn recent years, the low Earth orbit microsatellite network technology has experienced rapid development due to its advantages of low latency, low cost, and short development cycles.
Hengfei Cheng +5 more
doaj +1 more source
Development of Pyramidal Type 2-AXES Analog Sun Sensor [PDF]
Journal of Astronomy and Space Sciences, 2000 PSS (Pyramidal type 2-axes Analog Sun Sensor) which will be used for KAISTSAT-4 is designed to be small, light, low in power consumption, and adequate for small satellite attitude sensor.
Sungho Rhee +3 more
doaj
Impact of China’s high speed train window glass on GNSS signals and positioning performance
Satellite Navigation, 2020 High speed train (HST) is an excellent platform to perform ultra-high spatial and temporal resolution observations of atmosphere using global navigation satellite systems (GNSS).
Zhizhao Liu, Yangzhao Gong, Letao Zhou
doaj +1 more source
Amplification and adaptation of centromeric repeats in polyploid switchgrass species. [PDF]
, 2018 Centromeres in most higher eukaryotes are composed of long arrays of satellite repeats from a single satellite repeat family. Why centromeres are dominated by a single satellite repeat and how the satellite repeats originate and evolve are among the most
Braz, Guilherme T +10 more
core +2 more sources
The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential
Aging and Cancer, EarlyView.As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley +1 more source
International Journal of Bio-Resource and Stress Management, 2016 Sustaining farm income through effective, economical, and environment friendly technologies are imminent particularly in tropical countries. Enhanced expectation of people’s aspiration, gap between haves and have-nots, and food security have been a ...
Ravikumar R. K +3 more
doaj
Overview of legal traceability of GPS positioning in Australia
Satellite Navigation, 2020 Global Positioning System (GPS) position verification and legal traceability in Australia supports industry, trade, science and innovation and is trusted and recognized domestically and internationally.
Guorong Hu, John Dawson
doaj +1 more source
Satellite Navigation, 2023 Single receiver positioning has been widely used as a standard and standalone positioning technique for about 25 years. To detect the slowly growing faults caused by satellite and receiver clocks in single receiver positioning, the Autonomous Integrity ...
Zhangjun Yu +4 more
doaj +1 more source