Results 131 to 140 of about 3,267,705 (293)

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

The Inverse Problem in Jet Acoustics

, 2001
The inverse problem for jet acoustics, or the determination of noise sources from far-field pressure information, is proposed as a tool for understanding the generation of noise by turbulence and for the improved prediction of jet noise.
Wooddruff, S. L., Hussaini, M. Y.
core  

Acoustics at the National Research Council (Canada)

, 1995
In 1929 the first Director of the Division of Applied Physics brought with him a strong interest in ultrasonics, thereby opening a line of research activity in the field of acoustics which has grown in scope and in breadth ever since. Currently, research
Zimcik, David G., Monchalin, Jean-Pierre, Daigle, Gilles A., Quirt, J. David, Wong, George S. K.   +4 more
core   +1 more source

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes

Advanced Science, EarlyView.
Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Shuchang Zhang, Yi He, Guojie Luo, Jie Huang, Pak San Yip, Haoyu Cui, Wanglinhan Zhang, Zijian Wang, Lin Ye, Yang Lu, Zhongqing Su, Yehai Li   +11 more
wiley   +1 more source

From Flow to Function: Using Different Static Mixers to Fabricate Microarchitected Materials Via Chaotic Printing

Advanced Science, EarlyView.
Complex microarchitectures emerge from simple flow‐driven transformations as static mixers iteratively reorient and split material domains. Coupled with diverse deposition strategies, chaotic printing provides an accessible platform for fabricating architected materials that support biologically and chemically relevant processes. ABSTRACT Nature builds
Edna Johana Bolívar‐Monsalve, Carlos Fernando Ceballos‐González, Diego Alonso Quevedo‐Moreno, Irving Isaí Rendón‐Moreno, Ariel Cantoral‐Sánchez, Héctor Ambriz‐González, Mario Moisés Alvarez, Grissel Trujillo‐de Santiago   +7 more
wiley   +1 more source

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

Advanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang, Dengjie Yan, Muwen Chen, Baoqiang Xu, Bin Yang, Bingyi Song, Lingxin Kong   +6 more
wiley   +1 more source

Polarization Engineering in Vinylene‐Linked COFs Toward Efficient Neuromorphic Computing

Advanced Science, EarlyView.
A vinyl‐linked covalent organic framework (COF‐DIBPY) was synthesized on a conductive substrate for memristor applications. Redox reactions and bromide migration enable low‐voltage (0.5V) conductance switching with high analog on/off ratio (15.7). The device was further integrated into a speech emotion recognition system for acoustic simulation and ...
Hao Wang, Lei Zhao, Haoyuan Yao, Qiongshan Zhang, Fuzhen Xuan, Bin Zhang   +5 more
wiley   +1 more source

3-rd Spring School on Acousto-Optics and Applications Gdańsk–Wieżyca, May 29-31, 1986 // Istituto di Acustica ,,O. M. Corbino’’, 50th anniversary celebration, Rome, Italy, 28-30 april 1987

Archives of Acoustics
The 3-rd School on Acousto-optics and Applications like the two previous ones (in 1980 – Arch. Acoust. 6 (1981) 85-86 and in 1983 – Arch. Acoust. 9 (1984) 382-382) took place at Wieżyca near Gdańsk in the recreation centre of the Gdynia Shipyard.
A. ŚLIWIŃSKI, P. E. GIUA
doaj  

Spatiotemporally Ultrasound‐Controlled Nanoparticles Reprogramming Immunostimulatory Antigen‐Presenting Cancer‐Associated Fibroblasts to Enhance Cancer Immunotherapy

Advanced Science, EarlyView.
We developed an ultrasound‐controlled biomimetic nanoplatform, mRNA/V@M NPs, to co‐deliver CD74 mRNA and V‐9302 for fibrotic TNBC therapy. CD74 mRNA reprograms myCAFs into antigen‐presenting apCAF cells through the CD74‐MHC II pathway, while V‐9302 induces ICD and activates MHC I‐CD8+ T cell immunity.
Chen Ai, Weikai Sun, Yuxuan Zhao, Daqian Sun, Ting Meng, Yafei Qi, Fengyang Jiang, Jintang Sun, Zhiliang Gao, Dexin Yu   +9 more
wiley   +1 more source

Transparant Concert Hall Acoustics

, 2007
April 15, 2005 the new concert hall for symphonic music, Casa da Música in Porto, Portugal, has been inaugurated. The architectural concept of a transparent shoebox-shaped hall in combination with program requirements challenged the acoustics in many ...
Kok, BHM, Braak, van den, E., Luxemburg, van, L.C.J., Luxemburg, LCJ Renz van, Kok, B.H.M., ICA Madrid 2007, xx, Braak, E van den, Hak, C.C.J.M., Hak, CCJM Constant   +8 more
core