Results 71 to 80 of about 8,613 (253)

Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe

Advanced Science, EarlyView.
A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang, Yang Li, Jianguo Chen, Kai Guo, Jun Luo, Jiye Zhang   +5 more
wiley   +1 more source

Investigating the Acoustic Properties of Hearing Earmolds: A Pilot Study

B-ENT
Background: Previous research comparing the materials used in the production of earmolds, the superiority of the materials to each other has been proven.
Furkan Büyükkal, Bahtiyar Çelikgün, M. Bülent Şerbetçioğlu   +2 more
doaj   +3 more sources

CMV in school classrooms: Installation and management for optimal speech intelligibility [PDF]

E3S Web of Conferences
Indoor air quality and speech intelligibility are key factors for comfort and learning effectiveness in school classrooms. The installation of Controlled Mechanical Ventilation Systems (CMV) ensures proper air exchange and reduces pollutant concentration,
Serpilli Fabio, Lori Valter, Di Loreto Samantha, Summa Serena, Stazi Francesca, Di Perna Costanzo   +5 more
doaj   +1 more source

Acoustic Control for Comfortable Acoustic Space

The Journal of The Institute of Electrical Engineers of Japan, 2006
KUBO, Ryogo, EGAMI, Kousuke, SHINODA, Kouta, ISHIZU, Seiichi   +3 more
openaire   +3 more sources

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

Advanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu, Mengting Zhang, Qingyu Xie, Kehao Hu, Bowen Zhang, Zhe Zhang, Jie Yang, Zhiping Hu, Juan Du, Jia Wang, Min Zhou   +10 more
wiley   +1 more source

Evaluation Modeling of Electric Bus Interior Sound Quality Based on Two Improved XGBoost Algorithms Using GS and PSO

Archives of Acoustics
There is no doubt that traffic noise has become one of the main sources of urban noise, and the electric bus, as an important means of transport frequently used by people in daily life, has a direct impact on the psychological and auditory health of ...
Enlai ZHANG, Yi CHEN, Liang SU, Ruoyu ZHONGLIAN, Xianyi CHEN, Shangfeng JIANG   +5 more
doaj   +1 more source

Providing acoustic comfort of built-up zones and rooms in urban planning

MATEC Web of Conferences, 2018
The article discusses topical issues of acoustic comfort ensuring on residential areas in urban planning. The main problems in this area are identified, as well asa new approach to their solution is proposed. The physical and energy approach, proposed by
Bespalov Vadim, Samarskaya Natalia, Lysova Ekaterina, Akay Oksana   +3 more
doaj   +1 more source

Single‐Sensor Vibration Sensing in Anisotropic Composites Enabled by Disordered Metasurfaces

Advanced Science, EarlyView.
This work develops a single‐sensor vibration sensing (SSVS) framework that integrates disordered metasurfaces with compressive sensing. Comprehensive numerical and experimental validations demonstrate that, by manipulating anisotropic guided wave propagation through metasurfaces, the proposed SSVS framework enables high‐fidelity multi‐source vibration ...
Jianjie Zhang, Lanhe Xu, Zhongzheng Zhang, Yongbo Li, Eric Li, Asoke K. Nandi, Bing Li   +6 more
wiley   +1 more source

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

Advanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar, Michał J. Winiarski, Tomasz Klimczuk, Allana G. Iwanicki, Satya K. Kushwaha, Martin Mourigal, Tyrel M. McQueen, Thao T. Tran   +9 more
wiley   +1 more source

Determination of thermal and acoustic comfort inside a vehicle’s cabin

E3S Web of Conferences, 2018
Thermal and acoustic comfort, inside a vehicle’s cabin, are highly interconnected and can greatly influence the health of the passengers. On one hand, the H.V.A.C.
Catalina Tiberiu, Vartires Andreea
doaj   +1 more source