Results 101 to 110 of about 107,844 (297)

Design of double layer satellite constellation based on distributed satellite clusters

open access: yesDianxin kexue, 2018
Nowadays,the land communication system is unable to support the complex information needs,and realizing global seamless coverage and high capacity through space information network is anticipated.The existing satellite network is mainly composed of ...
Ji JIANG, Mugen PENG, Wenbo WANG
doaj   +2 more sources

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Ant Colony Optimization-Based Traffic Load Balancing Algorithm for Software Defined Low Earth Orbit Satellite Networks

open access: yes天地一体化信息网络
In order to solve the problem of unbalanced link resource utilization and difficult quality of service guarantee in current low earth orbit satellite networks, a software-defined low earth orbit satellite network traffic load balancing algorithm based on
ZHOU Xin   +4 more
doaj  

Space-Based Relay Simulations [PDF]

open access: yes
This report displays field-of-view studies through computer simulation using the Analytical Graphics, Inc., Systems Tool Kit (STK). This task analyzes the potential performance for a variety of circular low-Earth-orbit (LEO) satellites and some relative ...
Niederhaus, Charles E.   +2 more
core   +1 more source

IPv6 and IPsec Tests of a Space-Based Asset, the Cisco Router in Low Earth Orbit (CLEO) [PDF]

open access: yes, 2008
This report documents the design of network infrastructure to support testing and demonstrating network-centric operations and command and control of space-based assets, using IPv6 and IPsec. These tests were performed using the Cisco router in Low Earth
Ivancic, William   +5 more
core   +1 more source

Satellite-to-ground quantum communication using a 50-kg-class micro-satellite

open access: yes, 2017
Recent rapid growth in the number of satellite-constellation programs for remote sensing and communications, thanks to the availability of small-size and low-cost satellites, provides impetus for high capacity laser communication (lasercom) in space ...
Carrasco-Casado, Alberto   +5 more
core   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong   +6 more
wiley   +1 more source

Development of the command data system and ground software for the SEDSAT-1 microsatellite [PDF]

open access: yes
SEDSAT-1 is designed to be a low cost scientific satellite which is to be used to perform a minimum of five tasks which include: (1) the acquisition of a number of important parameters associated with the tethering processes from the payloads perspective
Wells, B. Earl
core   +1 more source

A Routing algorithm for low earth orbit satellite networks

open access: yes, 1995
ÖZET YERE YAKIN YORUNGELI UYDU A?LARI İÇİN BİR YOL ATAMA ALGORİTMASI Cantekin Dinçerler Elektrik ve Elektronik Mühendisliği Bölümü Yüksek Lisans Tez yöneticisi: Doç. Dr. Erdal Arıkan Temmuz 1995 Bu çalışmada yere yakın yörûngeli uydu takımlarının geometrik özellikleri ele alınır ve önerilen bir yol atama algoritması için bir uydu ağının başarımı ince ...
openaire   +3 more sources

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