Results 51 to 60 of about 1,766,714 (261)
Advanced Optical Materials, EarlyView.The unique combination of photophysical properties for π‐expanded 1,4‐dihydropyrrolo[3,2‐b]pyrroles (DHPPs) can be reached via a new synthetic approach. π‐Expanded DHPPs possessing electron‐withdrawing functionalities with emission reaching 700 nm, as well as large double helical systems were prepared and investigated.
Damian Kusy +10 more
wiley +1 more source
Optical-SDMA for Broadband Aeronautical Communications" [PDF]
, 2003 Broadband communication for aircraft passengers is facing one of the most promising markets of near future. While currently systems introduced in L and Ku band are already limited in bandwidth considering service provisioning to several airline fleets ...
Giggenbach, Dirk +3 more
core
A low profile radiating element with nearly hemispheric coverage for satellite communications on-the-move hybrid array antenna [PDF]
, 2010 A novel design solution of a dual-linearly polarised Ku-band low-profile radiating element for low elevation angle coverage (down to 10° above horizon) is presented. Such an element is suitable for full-duplex Satellite Communications On-The-Move (SCOTM)
Yuanyuan Jiang +7 more
core +1 more source
Advanced Optical Materials, EarlyView.Donor strength governs the excited‐state character and TADF behavior of donor‐acceptor‐donor borondifluoride curcuminoid derivatives. Increasing donor strength drives a transition from charge‐transfer TADF to a zwitterionic polymethine structure with predominantly local excited‐state emission and suppressed TADF.
Anthony D'Aléo +13 more
wiley +1 more source
, 2012 The field of satellite communications represents the world's largest space industry. Those who are interested in space need to understand the fundamentals of satellite communications, its technology, operation, business, economic, and regulatory aspects.
Pelton, Joseph N, Joseph N. Pelton
core +1 more source
Advanced Satellite Communications [PDF]
, 2020 Applications of satellite communications has broader usage; for instance voice, video calling, internet, fax, television, and radio communications. There are abundant and various types of satellites that has applications from amplification of radio ...
Mitra, Manu
core +1 more source
Battery‐Inspired Electrochemical Synapses for Neuromorphic Applications
Advanced Science, EarlyView.Battery‐ion‐inspired synaptic devices integrate diverse electrolyte systems (solid, ion‐gel, liquid) with transition metal oxides, two‐dimensional materials, and organic channels to regulate ion‐electron coupling. By tailoring ion transport and host interactions, these platforms enable controllable plasticity and energy‐efficient implementations for ...
Won Woo Lee +6 more
wiley +1 more source
A Study on Satellite Diagnostic Expert Systems Using Case-Based Approach [PDF]
Journal of Astronomy and Space Sciences, 1997 Many research works are on going to monitor and diagnose diverse malfunctions of satellite systems as the complexity and number of satellites increase. Currently, many works on monitoring and diagnosis are carried out by human experts but there are needs
Young-Tack Park +2 more
doaj
Advanced Science, EarlyView.Efficient conversion and detection of short‐wave infrared (SWIR) photons are becoming increasingly important for emerging photonic and energy technologies. Here, we report an organic photothermoelectric device based on an open‐shell conjugated polymer that enables SWIR energy conversion and photon detection via the photothermoelectric effect.
Guan‐Lin Chen +5 more
wiley +1 more source
A new broadband antenna for satellite communications
, 2014 This paper presents a new broadband antenna for satellite communications. It describes the procedure involved in the design of a microstrip antenna array and its multi-level passive feed network that together yield circular polarization and the necessary
Tekin, Tolga +11 more
core +1 more source