Results 171 to 180 of about 33,703 (304)

Non-Destructive Characterization of Cultural Heritage Materials Using a Modified Acoustic Resonance Approach. [PDF]

Materials (Basel)
Pantelić F, Vasić MR, Stojanović M, Terzić A, Miljević B, Vučetić S.   +5 more
europepmc   +1 more source

Installation, operation and maintenance instructions for Acoustic Spectra Comparator Recorder /ASCOR/ Final report

, 1966
Manual for installation, operation and maintenance of acoustic spectra comparator and ...
Morefield, R. I.
core  

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

Topological acoustic synapse for high-dimensional neuromorphic computing. [PDF]

Sci Adv
Chen J, Ige AS, Runge K, Deymier PA, Yan X.   +4 more
europepmc   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

Advanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang, Hanjie Xiao, Xue Jiang, Dean Ta   +3 more
wiley   +1 more source

OPTIKS: Optimized Gradient Properties Through Timing in k-Space. [PDF]

IEEE Trans Med Imaging
McCready MA, Cao X, Setsompop K, Pauly JM, Kerr AB.   +4 more
europepmc   +1 more source

Observation of Excitonic Instability in a Monolayer Ta2NiSe5 With Strain Disorder

Advanced Science, EarlyView.
Monolayer Ta2${\rm Ta}_2$NiSe5${\rm NiSe}_5$ sustains an excitonic insulating phase up to 190 K, with Raman signatures of gap opening and critical excitonic fluctuations. Thickness‐independent large gap ratios highlight strong exciton‐phonon coupling, while substrate‐induced strain disorder depresses Tc, establishing monolayer Ta2${\rm Ta}_2$NiSe5${\rm
So Young Kim, Kwangrae Kim, Dowook Kim, Ji Eun Lee, Jieun Seok, Chang Il Kwon, Jo Hyun Yun, Chang‐Jong Kang, Jae Hoon Kim, H. W. Yeom, Tae‐Hwan Kim, Jonghwan Kim, B. J. Kim, Jun Sung Kim   +13 more
wiley   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level. [PDF]

Magn Reson Med
Seginer A, Bratch A, Goren S, Furman-Haran E, Harel N, Yacoub E, Schmidt R.   +6 more
europepmc   +1 more source

Stress‐to‐Light Conversion in an Earth‐Abundant Oxide Semiconductor

Advanced Science, EarlyView.
Stress‐to‐light conversion in solids represents a unique photonic functionality, yet it has never been realized in a chemically simple and sustainable material. Here, we show that sustainable semiconductor ZnO exhibits strong near‐infrared (NIR) luminescence under elastic stress when defect‐engineered to stabilize the p‐type state.
Tomoki Uchiyama, Koki Otonari, Reona Omori, Guangfa Yang, Eiji Nishibori, Ying Chen, Xu‐Guang Zheng, Chao‐Nan Xu   +7 more
wiley   +1 more source

Mode hopping via nonlinear magnon-magnon coupling in a synthetic antiferromagnet. [PDF]

Nat Commun
You M, Song M, Seo JS, Lee D, Yoon S, Hayashi D, Shiota Y, Ono T, Kim S, Kim SK, Park AMG, Kim KJ.   +11 more
europepmc   +1 more source