Results 121 to 130 of about 4,524,836 (233)

AAPM Medical Physics Practice Guideline 18.a: Superficial radiation therapy using low‐energy kilovoltage x‐rays

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 11, November 2026.
Abstract Superficial radiation therapy (SRT), utilizing low‐energy kilovoltage (kV) x‐rays typically in the 50–100 kVp range, is a well‐established modality in dermatology and radiation oncology clinics for the management of non‐melanoma skin cancer and various benign dermatological conditions.
Yongsook C. Lee   +7 more
wiley   +1 more source

Backscatter communication assisted vehicular positioning technology with ultra-high accuracy

open access: yesDianxin kexue, 2020
The accurate vehicular positioning technology has been the fundamentalfunction for safer auto-driving and vehicular-to-everything networks.One research trend focuses on enabling the low-cost,reliable,and accurate vehicular positioning in high-density ...
Kaifeng HAN, Tiezhi LIU
doaj  

Electrically Induced Photonic Assemblies of Faceted ZIF‐8 Crystals Exhibiting Binary Angle‐Dependent Structural Color and Metamerism

open access: yesAdvanced Optical Materials, Volume 14, Issue 41, 6 November 2026.
Electric fields drive dynamic photonic assemblies that reversibly generate structural color. By tuning nanoscale organization through controlled particle disorder, the presented system exhibits a unique binary color response, switching between blue and pink depending on viewing angle. Combined with metameric design, this allows for a two‐factor optical
Flora Schöfbeck   +9 more
wiley   +1 more source

Modulation schemes in ambient backscatter communication

open access: yes, 2017
This thesis presents a study of different modulation schemes in the context of backscatter communication. Backscatter communication is a way of wireless communication where no active signal is transmitted.
Harms, Oliver
core   +1 more source

Recent Advances in Optical Methods for Characterization of Extracellular Vesicles: A Comprehensive Review

open access: yesAdvanced Photonics Research, Volume 7, Issue 11, November 2026.
Extracellular vesicles (EVs) hold immense translational potential as next‐generation clinical biomarkers and targeted therapeutic carriers. This comprehensive review highlights the latest advancements in optical and biophotonic characterization techniques for high‐sensitivity, single‐vesicle analysis.
Mohammad Reza Rashidian Vaziri   +3 more
wiley   +1 more source

Survey of Millimeter Wave Backscatter Communition Systems

open access: yes, 2023
Backscatter communication is a burgeoning low-power communication technology that has been introduced into the Internet of Things (IoT) due to its excellent self-sustainability. However, conventional backscatter communication (BackCom) technologies often
Chen, Weilin
core  

Multi-Antenna Broadband Backscatter Communications

open access: yesCoRR
Backscatter communication offers a promising solution to connect massive Internet-of-Things (IoT) devices with low cost and high energy efficiency. Nevertheless, its inherently passive nature limits transmission reliability, thereby hindering improvements in communication range and data rate.
Hao Chen 0070   +3 more
openaire   +3 more sources

The Dual‐Atom Dispersed Catalysts for High‐Performance Li–S Batteries

open access: yesCarbon Neutralization, Volume 5, Issue 6, November 2026.
With near 100% atomic utilization and tunable coordination environments, dual atom‐dispersed catalysts (DACs) effectively enhance LiPSs adsorption, lower conversion energy barriers, and accelerate sulfur redox reactions. This review covers design principles, catalytic mechanisms, and future directions for DACs in scalable, high‐performance Li–S ...
Lihong Yang, Chengwei Ma, Jiangqi Zhou
wiley   +1 more source

Delay Minimization for BAC-NOMA Offloading in UAV Networks

open access: yesSensors
The rapid deployment and enhanced communication capabilities of unmanned aerial vehicles (UAVs) have enabled numerous real-time sensing applications.
Haodong Li   +2 more
doaj   +1 more source

White light reduces flight height of birds in low‐density migration corridor

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 8, November 2026.
We conducted an experiment to better understand the effects of artificial light at night treatments of varying spectral power distributions on in‐flight migratory bird behavior as measured by a portable radar. Broad‐spectrum white light emissions reduced avian flight height as compared to dark periods and more than other light treatments.
Miguel F. Jimenez   +6 more
wiley   +1 more source

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