Results 41 to 50 of about 423 (129)

Stepwise Optimization of Thermoelectric Performance in Cu3SbSe4‐Based Compounds via Alloying and Hierarchical Structuring

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 2, March 2026.
Under the stepwise optimization strategy, (Sn, Te) co‐alloying functions as the primary initiative to enhance the power factor (PF), while the subsequent incorporation of AgCuTe operates as a synergistic maneuver to suppress lattice thermal conductivity (κlat), thereby concomitantly boosting the dimensionless figure of merit (ZT).
Wenying Wang   +7 more
wiley   +1 more source

On Wind Directions Estimated by Nacelle Lidar Under Different Reconstruction Methods

open access: yesWind Energy, Volume 29, Issue 3, March 2026.
ABSTRACT The wind direction is closely linked to the power performance and structural loads of wind turbines. Conventional nacelle‐mounted vanes or sonic anemometers face errors associated with airflow distortions caused by turbine blades. Nacelle‐mounted lidar systems offer line‐of‐sight speed measurements from multiple positions ahead of the rotor ...
Feng Guo   +7 more
wiley   +1 more source

Twin‐Wire In Situ Additive Manufacturing of NiTiNb Eutectic Alloys: Eliminating Unmelted Nb Particles and Tailored Superelasticity

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang   +9 more
wiley   +1 more source

Noncoherent Quantum Multiple Symbol Differential Detection for Wireless Systems

open access: yesIEEE Access, 2015
In large-dimensional wireless systems, such as cooperative multicell processing, millimeterwave, and massive multiple input multiple output systems, or cells having a high user density, such as airports, train stations, and metropolitan areas ...
Panagiotis Botsinis   +4 more
doaj   +1 more source

Thermally Activated Delayed Fluorescence Sensitization of Bis(phenylethynyl)benzenes for Visible‐to‐UV Upconversion

open access: yesChemPhotoChem, Volume 10, Issue 1, January 2026.
This work demonstrates visible‐to‐UV triplet–triplet annihilation upconversion (UC) using fully organic dye pairs combining thermally activated delayed fluorescence (TADF) sensitizers and BPEB‐based emitters. Efficient energy transfer, low excitation thresholds, and UV emission below 400 nm are achieved, highlighting the potential of TADF dyes for ...
Davide Lardani   +4 more
wiley   +1 more source

New Difference Triangle Sets by a Field‐Programmable Gate Array‐Based Search Technique

open access: yesJournal of Combinatorial Designs, Volume 34, Issue 1, Page 37-50, January 2026.
ABSTRACT We provide some difference triangle sets with scopes that improve upon the best known values. These are found with purpose‐built digital circuits realized with field‐programmable gate arrays (FPGAs) rather than software algorithms running on general‐purpose processors.
Mohannad Shehadeh   +2 more
wiley   +1 more source

Time-frequency differential encoding and detection for cyclic prefix assisted CDMA system

open access: yesTongxin xuebao, 2007
A new differential encoding and detection scheme for cyclic prefix assisted CDMA system was proposed.Considering the correlation between channel impulse response in both time domain and frequency domain,a time-frequency differential encoding scheme and ...
FANG Zhao-xi   +2 more
doaj   +2 more sources

An Energy‐Tiered Clustering‐Based Blind Detector for RIS‐RSM Systems

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes an energy‐tiered structure initialization (ETSI) algorithm for blind detection in reconfigurable intelligent surface (RIS)‐assisted spatial modulation systems. By decomposing the modulation constellation into multiple energy tiers and leveraging structured prototype initialization with tier‐normalized refinement, ETSI effectively ...
Lijuan Zhang   +2 more
wiley   +1 more source

Mid‐Infrared Free‐Space Optical Communications: Technologies, Demonstrations and Future Directions

open access: yesIET Optoelectronics, Volume 20, Issue 1, January/December 2026.
Free‐space optical (FSO) communication is increasingly extending beyond the near‐infrared to the mid‐wave infrared (MWIR) and long‐wave infrared (LWIR) regions, which offer reduced turbulence, scattering and absorption for more robust links. This review summarises recent advances in MWIR/LWIR FSO technologies, including quantum cascade lasers, lithium ...
Darja Cirjulina   +16 more
wiley   +1 more source

Focal Molography: Coherent Microscopic Detection of Biomolecular Interaction

open access: yesPhysical Review X, 2014
We introduce and theoretically investigate here a novel analytical method that we have called focal molography, in which molecular interactions are made visible through scattering of coherent light by a coherent pattern of molecules.
Christof Fattinger
doaj   +1 more source

Home - About - Disclaimer - Privacy