Results 61 to 70 of about 584 (198)

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Joint beamforming and phase shift optimization for EE and SE in multi-IRS beyond 5G/6G systems

Scientific African
The rapid evolution of mobile communication technologies has increased the demand for high-speed and energy-efficient wireless networks. Intelligent reflecting surfaces (IRSs) have emerged as a key enabler for beyond-5G (B5G) and 6G systems by enhancing ...
Ayalew Tadese Kibret, Amare Kassaw Yimer
doaj   +1 more source

Engineering Flexible Nanofibrous Hydroxyapatite Scaffolds With Tunable Degradation and Mechanical Properties for Bone Regeneration

Small, EarlyView.
Conventional hydroxyapatite ceramics are brittle and poorly resorbable, limiting their use in bone repair. To overcome these limitations, flexible scaffolds are fabricated using ceramic nanofibers as structural building blocks. Adjusting nanofiber characteristics allows modulating the mechanical properties and degradation, providing a versatile ...
Raúl Agut López, Ignacio Ridao Laguna, Cristián Huck‐Iriart, Maria‐Pau Ginebra, Montserrat Espanol   +4 more
wiley   +1 more source

Inkjet printed intelligent reflecting surface (IRS) for indoor applications

A passive, low-cost, paper-based intelligent reflecting surface (IRS) is designed to reflect a signal in a desired direction to overcome non-line-of-sight scenarios in indoor environments. The IRS is fabricated using conductive silver ink printed on a paper with a specific nanoparticle arrangement, yielding a cost effective paper-based IRS that can ...
Takimoto, Kairi, Nakamura, Kazutomo, Njogu, Peter, Suzuki, Kota, Sugimoto, Masato, Fathnan, Ashif, Kondo, Takashi, Mori, Masayuki, Anzai, Daisuke, Wakatsuchi, Hiroki   +9 more
openaire   +2 more sources

An adaptive IRS adjusting algorithm aids communication in heterogeneous cognitive radio networks

Ain Shams Engineering Journal
In this paper, we present an adaptive intelligent reflecting surfaces (IRS) adjusting algorithm designed to enhance the communication quality of secondary users (SUs) within heterogeneous cognitive radio networks (CRNs), using a cross-layer analysis ...
Xiaoying Zhu, Shi Wang, Xiaohui Xu, Yi Lou, Hao Sun   +4 more
doaj   +1 more source

Targeting the CD47–SIRPα phagocytic checkpoint in cancer: Biology, translational opportunities, and next‐generation therapeutic strategies

Smart Molecules, EarlyView.
The CD47–SIRPα axis has emerged as a critical innate immune checkpoint that suppresses macrophage‐mediated phagocytosis through a canonical “don't eat me” signal and enables tumor immune evasion. We comprehensively summarize the structural and biological features of CD47 and the molecular mechanisms underlying CD47‐mediated regulation of phagocytosis ...
Ruimei Zhou, Lingjie Jing, Jianping Zhang, Cheng Guo, Quanjun Yang   +4 more
wiley   +1 more source

Accuracy (trueness and precision) of two handheld scanners and a smartphone for three‐dimensional facial scanning: An in vivo study

Journal of Prosthodontics, EarlyView.
Abstract Purpose The aim of this in vivo study was to evaluate and compare the accuracy (trueness and precision) of three portable facial scanning methods: a professional handheld structured‐light scanner (P‐HS), a low‐cost handheld structured‐light scanner (LC‐HS), and a smartphone with a depth‐sensing camera (SP).
Gaizka Erkizia, Xabier Amezua, Mikel Iturrate, Eneko Solaberrieta   +3 more
wiley   +1 more source

Fewer Surfaces, Stronger Links: EMI-Aware IRS Number, Placement, and Phase Design Under Rate Guarantees

IEEE Access
Intelligent Reflecting Surfaces (IRSs) have emerged as a promising approach to enhancing wireless communication performance by reconfiguring the propagation environment in a passive, energy-efficient manner. However, determining the optimal number of IRS
Rhana Elsayed, Esraa M. Eid, Adly S. Tag Eldien, Mostafa Fouda, Mohamed I. Ismail, Shimaa S. Ali   +5 more
doaj   +1 more source

Driven by risk: Understanding reference‐dependent preferences using simulated auto racing

Journal of Risk and Insurance, EarlyView.
Abstract Using data from over 56,000 simulated auto races worldwide, we analyze risk‐taking at the margins, consistent with reference‐dependent preferences. We show that participants' risk‐taking changes when a desired intermittent outcome is presented, sometimes at the expense of a more favorable expected end state.
James Hilliard, Annette Hofmann, David Weber   +2 more
wiley   +1 more source

Periodontitis and Diabetes: Mechanistic Evidence of a Circular Relationship

Journal of Periodontal Research, EarlyView.
This narrative review aimed to explore the underlying mechanisms that connect periodontitis to diabetes (and vice versa) and that influence disease susceptibility, progression and response to treatment. ABSTRACT The circular relationship between periodontitis and diabetes mellitus is one of the most established oral‐systemic links.
Philip M. Preshaw, Ren Jie Jacob Chew, Charlene Enhui Goh, Ali A. Abdulkareem, Dana T. Graves   +4 more
wiley   +1 more source