Results 181 to 190 of about 40,475 (306)

A Novel Thickness-Mode Broadband Piezoelectric Ultrasonic Transducer Design Based on Double-Layer Piezoelectric Structure and a Variable-Thickness Matching Layer. [PDF]

Sensors (Basel)
Wu Q, Geng A, Feng W, Yao M, Hu C.
europepmc   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Mid-infrared to ultraviolet efficient multiphoton frequency upconversion in NbOI₂ crystals. [PDF]

Nat Commun
Zhu S, Mao X, Yan C, Wang F, Xu Z, Hu H, Xu X, Fang Y, Sun F, Duan R, Wu Y, Yang Y, Wang C, Qiao Z, Chen W, Liang H, Huang F, Liu Z, Luo Y, Wang QJ.   +19 more
europepmc   +1 more source

Use of a Third Harmonic of a Magnetic Field Energy for Self-Excitation of Synchronous Motors

The given summary of doctoral thesis is devoted to system of excitation of alternating-current salient poles synchronous motors from energy of the third harmonic of a magnetic field.
Podgornovs, Andrejs
core  

Full‐Body AI Agent: A Perspective on Multi‐Scale Collaborative AI for Systemic Biology and Precision Medicine

Advanced Science, EarlyView.
We propose the Full‐Body AI Agent, a multi‐scale collaborative framework with 7 biological‐layer agents. It unifies multi‐omics/clinical data via standardized protocols, enabling phenotype‐guided closed‐loop reasoning, quantitative evaluation, and LLM safeguards, with promising applications in tumor metastasis modeling and precision drug development ...
Aoqi Wang, Jiajia Liu, Jianguo Wen, Yangyang Luo, Zhiwei Fan, Liren Yang, Xi Hu, Ruihan Luo, Yankai Yu, Sophia Li, Weiling Zhao, Xiaobo Zhou   +11 more
wiley   +1 more source

Kissing Bond Damage Detection Based on the Non-Reciprocity of Nonlinear Guided Waves in CFRP-Reinforced Steel Plates. [PDF]

Materials (Basel)
Guan R, Zhang H, Deng J, Kang Q, Wang K.
europepmc   +1 more source

Cigarette Smoke‐Induced Alveolar Macrophage Senescence via GEM/SIRT3‐Mediated Mitochondrial Dysfunction

Advanced Science, EarlyView.
Cigarette smoke accelerates the aging of immune cells in the lung. By combining human single‐cell sequencing, cell culture, and mouse models, the authors show that the protein GEM drives mitochondrial damage and senescence in alveolar macrophages by suppressing SIRT3.
Jin Wang, Meidan Wei, Xiangrong Song, Jiaxin Zhang, Lisha Zhang, Sixian Chen, Yaoyu Hu, Hui Gao, Jianxiang Li   +8 more
wiley   +1 more source

Experimental verification of DAS vibration response characteristics of equal strength beam under sinusoidal excitation. [PDF]

Sci Rep
Ma C, Chai J, Zhang D, Li Z, Gao L.
europepmc   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

Advanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong, Ming Ho Yam, Jiaxin Zhang, Lin Du, Linbin Zhou, Yolanda Wong Ying Yip, Bo Man Ho, Hemlata Bisnauthsing, Jiahui Li, Ivan Kong, Shushu Xu, Changzhen Fu, Karl K.H. So, Joaquim S.L. Vong, Ling‐Ping Cen, Ming‐Ming Yang, Khazeema Yousaf, Mai Har Sham, Sun On Chan, Poemen P. Chan, Chi Pui Pang, Clement C. Tham, Jing Na He, Jian Li, Wai Kit Chu   +24 more
wiley   +1 more source

A dual-mode dual-stator hybrid rotor synchronous and vernier machine for variable speed applications. [PDF]

Sci Rep
Ali S, Ali Q, Munir HM, Zidan HA.
europepmc   +1 more source