Results 101 to 110 of about 802,957 (208)

Design of the HG-I Holographic Printer and Holographic Printing

工程科学与技术
Objective Most domestic holographic plastic processing equipment still relies on embossed holography technology. This traditional technology cannot fabricate reflection volume holograms that possess three-dimensional (3D) effects visible to the naked eye,
ZHAO Rongman, ZHOU Jinlun, LIU Sen, PENG Haiyan, ZHANG Yun, ZHOU Huamin, XIE Xiaolin   +6 more
doaj  

Microwave holographic antenna with integrated printed dipole feed

Electronics Letters, 2004
A microwave holographic antenna with an integrated printed dipole feed is presented. This design offers a much lower profile than current waveguide-fed holograms and greatly simplifies fabrication. The performance of a 30 GHz dipole-fed and waveguide-fed hologram is compared.
A. Petosa, S. Thirakoune, K. Levis, A. Ittipiboon   +3 more
openaire   +1 more source

Thickness variation of self-processing acrylamide-based photopolymer and reflection holography [PDF]

, 2000
There are many types of holographic recording material. The acrylamide-based recording material examined here has one significant advantage: it is self-processing.
Lawrence, Justin R., O\u27Neill, Feidhlim T., O'Neill, Feidhlim T., Sheridan, John T., Sheridan, J., O\u27Neill, F., Lawrence, Justin   +6 more
core   +1 more source

Holographic multiplexing metasurface with twisted diffractive neural network

Nature Communications
As the cornerstone of AI generated content, data drives human-machine interaction and is essential for developing sophisticated deep learning agents.
Zhixiang Fan, Chao Qian, Yuetian Jia, Yiming Feng, Haoliang Qian, Er-Ping Li, Romain Fleury, Hongsheng Chen   +7 more
doaj   +1 more source

Aberration‐Corrected Holographic Optical Elements Based on Consistent Shapes of Printed Hogels

Advanced Photonics Research
Herein, a holographic optical element (HOE) printing technique which maintains shapes and sizes of hogels across diverse focal positions, and aberration‐corrected HOEs which are fabricated by it are proposed. The proposed HOE printer employs nonpixelated
Jiwoon Yeom, Jung Beom Choi, Geun Seop Choi, Kwang‐Soon Choi, Jisoo Hong   +4 more
doaj   +1 more source

Applications of augmented reality in cardiology till 2024: a comprehensive review of innovations and clinical impacts

Frontiers in Virtual Reality
IntroductionAugmented reality (AugR) is becoming a widely recognized and innovative platform in global healthcare. AugR has revolutionized cardiology by enhancing the understanding of cardiac structure and function.
Ibthisam Ismail Sharieff, Diviya Bharathi Ravikumar, Shashvat Joshi, Barath Prashanth Sivasubramanian, Rajat Gupta, Yash Garg, Umabalan Thirupathy, Ragavendar Saravanabavanandan, Siva Naga Yarrarapu, Vikramaditya R. Samala Venkata   +9 more
doaj   +1 more source

Quantitative label-free cell imaging by means of digital holographic miscroscopy: a roadmap for a complete characterization of biological samples [PDF]

, 2011
The research activity, performed at the institute for Microelectronic and Microsystems, has been devoted to the study and the development of non-destructive optical techniques for morphological analysis of biological samples.
Di Caprio, Giuseppe
core   +1 more source

Improving the color quality evaluation of holographic prints with light pillars

Optics Express
In order to study the influence of color difference contributed by different lightness, chroma, and hue differences on the human visual perception, 84 pairs of holographic prints from nine cigarette packaging products within 3.0 CIELAB color difference units were prepared. A color difference evaluation experiment was carried out by
Xuping, Gong, Min, Huang, Xiaoyu, Shang, Zhimin, Chen, Haiping, Dong, Xiu, Li   +5 more
openaire   +2 more sources

AMoRE: Additive Manufacturing of RIS Elements

IEEE Access
A deep investigation of Reconfigurable Intelligent Surfaces (RIS) and Holographic MIMO (H-MIMO) surfaces in 5G and beyond systems requires numerous tests with various prototypes.
Andrey Tyarin, Kirill Glinskiy, Roman Zlobin, Aleksey Kureev, Evgeny Khorov   +4 more
doaj   +1 more source

Democrat Printing and Lithographing collection

, 1880
This collection contains samples of documents and books printed by Democrat Printing and Lithographing Company, as well as accounting ledgers from the ...
Democrat Printing and Lithographing Company. (Little Rock, Ark.)
core   +1 more source