Results 21 to 30 of about 7,460 (130)

Inverse design of nanophotonic devices enabled by optimization algorithms and deep learning: recent achievements and future prospects

open access: yesNanophotonics, Volume 14, Issue 2, Page 121-151, February 2025.
Abstract Nanophotonics, which explores significant light–matter interactions at the nanoscale, has facilitated significant advancements across numerous research fields. A key objective in this area is the design of ultra‐compact, high‐performance nanophotonic devices to pave the way for next‐generation photonics.
Junhyeong Kim   +9 more
wiley   +1 more source

Monte–Carlo Techniques Applied to CGH Generation Processes and Their Impact on the Image Quality Obtained

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
Partial Monte–Carlo Sampling (PMCS) techniques for CGH generation are presented, integrating them in the whole process of generating a CGH for a synthetic 3D scene, from design to rendering. Measurements of image quality indicate that it is possible to use a fraction of rays without any perceived loss of quality ABSTRACT Computer graphics aim to create
Juan A. Magallón   +2 more
wiley   +1 more source

Augmented reality for rhinoplasty: 3D scanning and projected AR for intraoperative planning validation

open access: yesHealthcare Technology Letters, Volume 12, Issue 1, January/December 2025.
The main idea of the present work is the using of 3D scan to acquire directly in the surgical room the final shape of the nose and to show the surgeon the differences respect to the planning in an intuitive way. This is achieved by using projected augmented reality to project false colours directly onto the patient's face.
Martina Autelitano   +6 more
wiley   +1 more source

Some experiments of the use of the New Technologies in Artistic Education: new challenges to bridging the gap between different cultural and social groups [PDF]

open access: yes, 2010
How to build constructive dialogue between different cultural and social groups may be a huge challenge. It is important to respect traditions and identities but at same time provide a level of education necessary nowadays. It is also important to engage
Oliveira, Rosa Maria
core  

Review of the Reconfigurable Intelligent Surfaces in Smart Cities: Opportunities, Challenges, and Applications

open access: yesIET Smart Cities, Volume 7, Issue 1, January/December 2025.
ABSTRACT This survey synthesises state‐of‐the‐art advancements in Reconfigurable Intelligent Surfaces (RIS) and their transformation in urban wireless networks, focusing on addressing the challenges inherent to 5 G/mmWave communications. The authors begin by evaluating path loss, blockage, and interference in dense urban environments.
Haider TH. Salim ALRikabi   +3 more
wiley   +1 more source

Optical joint correlator for real-time image tracking and retinal surgery [PDF]

open access: yes, 1991
A method for tracking an object in a sequence of images is described. Such sequence of images may, for example, be a sequence of television frames. The object in the current frame is correlated with the object in the previous frame to obtain the relative
Juday, Richard D.
core   +1 more source

‘Being There Together for Health’: A Systematic Review on the Feasibility, Effectiveness and Design Considerations of Immersive Collaborative Virtual Environments in Health Applications

open access: yesHuman Behavior and Emerging Technologies, Volume 2025, Issue 1, 2025.
Effectively using immersive multiuser environments for digital applications (via virtual, augmented and mixed reality technologies) beckons the future of healthcare delivery in the metaverse. We aimed to evaluate the feasibility and effectiveness of immersive multiuser environments used in health applications while identifying their design features. We
Tohid Zarei   +7 more
wiley   +1 more source

Metaverse in Tourism and Hospitality: A Framework‐Based Systematic Review

open access: yesHuman Behavior and Emerging Technologies, Volume 2025, Issue 1, 2025.
The metaverse is projected to contribute over $3 trillion to the global economy by 2031. Major technology firms, including Unity Technologies, Meta, Epic Games, Valve Corporation, Alphabet, and Roblox, invest billions of dollars in its development. Adopting digital technologies such as mixed reality (MR), virtual reality (VR), extended reality (ER ...
Chiranjeeb Debnath   +2 more
wiley   +1 more source

Unleashing the Potential of the Internet of Things: A Systematic Review of Low Power Wide Area Network Technologies for Smart Systems

open access: yesJournal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
As the Internet of Things (IoT) ecosystem rapidly expands, the anticipated connection of over 75 billion devices highlights a critical demand for efficient and scalable connectivity solutions. Low‐power wide‐area network (LPWAN) technologies, notably Sigfox, Long Range (LoRa), and narrowband Internet of Things (NB‐IoT), are fundamental enablers driving
Aisyah Illani Sulaiman   +3 more
wiley   +1 more source

Exploring Oculus Rift: A Historical Analysis of the ‘Virtual Reality’ Paradigm [PDF]

open access: yes, 2017
This paper will first provide background information about Virtual Reality in order to better analyze its development throughout history and into the future.
Gammage, Chastin
core   +1 more source

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