Results 191 to 200 of about 8,543,121 (289)

Coating‐Free Nanoscratching for Liquid‐Crystal Alignment on PCB‐Compatible Millimeter‐Wave Reflective Unit Cells

Advanced Materials Technologies, EarlyView.
Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma, Ga‐Yeong Park, Geunjung Lee, Hyo‐Won Lee, Jong‐Won Yu, Dong Ki Yoon   +5 more
wiley   +1 more source

Hardware implementation of visible light communication based multipurpose camouflage spy robot. [PDF]

Sci Rep
Sangeetha RG, Krithika S, Hemanth C.
europepmc   +1 more source

A study of LED lumination uniformity with mobility for visible light communications [PDF]

, 2012
Ghassemlooy, Zabih, H. Le Minh, A. Burton, Burton, Andrew, Rajbhandari, Sujan, Z. Ghasemlooy, S. Rajbhandari, Le Minh, Hoa   +7 more
core   +1 more source

Printed SWCNT‐Based p–n Junction Thin‐Film Near‐Infrared Photoresistors Enabled by a Sustainable Furan‐Derived π‐Conjugated Polymer

Advanced Materials Technologies, EarlyView.
A sustainable polymer–carbon nanotube bilayer enables efficient near‐infrared photodetection in a simple lateral planar p–n junction thin‐film architecture. Thermal side‐chain cleavage enhances interfacial coupling, shifts the dominant photoresponse from 800 to 1000 nm, and substantially improves device performance.
Jenner H. L. Ngai, Zhao Li, Jianfu Ding, Yuning Li   +3 more
wiley   +1 more source

Performance analysis of an indoor visible light communication system using LED configurations and diverse photodetectors. [PDF]

Sci Rep
Elamrawy FM, El Aziz AA, Khamis S, Kasem H.   +3 more
europepmc   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Optimizing Indoor Airport Navigation with Advanced Visible Light Communication Systems. [PDF]

Sensors (Basel)
Vieira M, Vieira MA, Galvão G, Louro P, Vieira P, Fantoni A.   +5 more
europepmc   +1 more source

Transmitter distribution for MIMO visible light communication systems [PDF]

, 2011
Ghassemlooy, Zabih, Haigh, Paul, Le Minh, Hoa   +2 more
core  

A Cryopreservation‐Based Supply Chain Strategy for Extrusion Bioprinting in Space

Advanced Materials Technologies, EarlyView.
Extrusion bioprinting on crewed space platforms requires a bioink that stays functional along the logistic chain. Here, cells and biomaterial ink travel separately, the cells cryopreserved and the ink cold stored, and are combined only minutes before printing.
Johannes Windisch, Max von Witzleben, Richard Frank Richter, Finn Dani, Constantin Greil, Sarah Duin, Anja Lode, Michael Gelinsky   +7 more
wiley   +1 more source

Optimizing intelligent reflecting surface assisted visible light communication networks under blockage and practical constraints using TLBO for IoT applications. [PDF]

Sci Rep
Dixit V, Kumar A, Sharan N, Pandey S, Kumar A, Singh RS.   +5 more
europepmc   +1 more source