Results 21 to 30 of about 25,045,486 (350)

Design of Satellite Operations Subsystem Using Dynamic Fault Management Mechanism [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
Satellite Operations Subsystem in the Mission Control Element provides real-time monitoring of the satellite status and transmits telecommands to control the satellite during the contact time.
Jaehoon Kim, Heesook Mo, Woonchan Jung
doaj  

A Study on an Object oriented Modeling for the Satelite Control System Development reusing Structured Analysis and Design Approach [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
The object-oriented approach is a difficult method for engineers who are accustomed to other software development methods although it is an excellent software development approach.
Jaehoon Kim, Wonchan Jung, Sangbum Lee
doaj  

Performance validation of the DVB-SH standard for satellite/terrestrial hybrid mobile broadcasting networks

open access: yes, 2022
S.802-825The recently introduced Digital Video Broadcasting Satellite to Handheld standard (DVB-SH) allows for digital broadcasting service provision to small mobile terminals in satellite/terrestrial hybrid networks.
Stadali, H.   +8 more
core   +1 more source

Precision Nutrient Rates and Placement in Conservation Maize-Wheat System: Effects on Crop Productivity, Profitability, Nutrient-Use Efficiency, and Environmental Footprints

open access: yesAgronomy, 2021
Intensive tillage-based production systems coupled with inefficient fertilizer management practices have led to increased production costs, sub-optimal productivity, and significant environmental externalities.
Raj K. Jat   +5 more
doaj   +1 more source

A Calculus of Countable Broadcasting Systems [PDF]

open access: yes, 1995
In this paper we propose a process algebra named CCB (a Calculus of Countable Broadcasting Systems). We define an observational congruence relation in CCB after basic definitions of CCB, and give a sound and complete axiom system for the congruence relation of finite agents.
Yoshinao Isobe   +2 more
openaire   +1 more source

BBC School Broadcasting, Progressivism in Education and Literacy 1957-1979 [PDF]

open access: yes, 2021
This thesis accounts for the history of BBC television and radio programmes made for use in schools, their relationship with educational progressivism, and the application of linguistic theory to literacy programmes in the period 1957-1979.
Barclay, Steven
core   +1 more source

A System Design and Analysis for Satellite Communication Link [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
A satellite RF communication link is analyzed based on a simple fundamental equations by systematic approach in this paper. The number of variables related to a design and analysis of satellite RF link is often a dozen or more, thus it is a tedious and ...
Tae Jin Chung, Jong Won Eun
doaj  

Broadcast communication by system frequency modulation [PDF]

open access: yes2012 IEEE Third International Conference on Smart Grid Communications (SmartGridComm), 2012
Load controllers available today can measure AC system frequency and react to frequency deviations. A system operator can communicate to frequency sensitive loads by changing the set-points of the system's dispatchable frequency regulation resources.
Philip J. Douglass, Shi You, Kai Heussen
openaire   +1 more source

Design of voice broadcasting system of coal mine based on Ethernet and CAN bus

open access: yesGong-kuang zidonghua, 2015
For limitations of broadcasting systems of traditional constant-pressure broadcasting, local amplified phone and personal handphone system, the paper proposed a design scheme of voice broadcasting system of coal mine based on Ethernet and CAN bus and ...
WEI Wenhui, WEI Mian
doaj   +1 more source

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