Results 131 to 140 of about 15,077 (301)

Acoustic Microscopy Via Scanning

, 1980
We offer via posters some of the latest images recorded with the scanning acoustic microscope operating near 2.5 GHz. Our report at the 1978 Review included a description of the scanning instrument which had been scaled up in frequency to 3 GHz. This was
Atalar, A, Atalar, A., Quate, C, Quate, C.   +3 more
core  

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

Advanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu, Xin Chen, Qingyang Zhao, Weikang Tan, Lingrui Zhu, Kin Liao, Vincent Chan, Nicolae Goga, Winfred O. Larkotey, Yang Li, Yinghui Shi, Wenya Shu, Lin Wang, Weiqing Wang, Tian Jian Lu, Yulong Han   +15 more
wiley   +1 more source

Scanning Acoustic Microscopy of Neoplastic and Inflammatory Cutaneous Tissue Specimens

, 1991
Acoustic microscopy utilizes high frequency ultrasound to generate microscopic images. The current study was designed to examine representative disorders of the skin by use of a reflective scanning acoustic microscope (R-SAM), and to determine whether ...
Ross, Priscilla A., Barr, Ronald J., Shaw, Lorna B., White, Gary M., Jones, Joie P.   +4 more
core   +1 more source

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

Internally Calibrated Scanning Acoustic Microscope Imaging of Rabbit Femur

Tässä tutkielmassa esitellään akustinen mikroskooppi, joka käyttää koodattuja signaaleja signaali-kohinasuhteen (SNR) parantamiseksi nostamatta anturin käyttöjännitettä.
Rantamaa, Anton
core  

IN-SITU SCANNING ACOUSTIC MICROSCOPY OF CRACK BRIDGING IN ALUMINA

, 1994
High-resolution scanning acoustic microscopy has been used to observe crack bridging in a fine-grained polycrystalline alumina. The microscope is sensitive to the increased acoustic transmission across the crack from the interlocking and sliding ...
ROBERTS, Steve, MARROW, T, BRIGGS, G, BRIGGS, George, ROBERTS, S   +4 more
core   +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

Law of effect of acoustic wave propagation angle on spray dust suppression efficiency

Meitan kexue jishu
In underground mining operations, the generation of a substantial quantity of coal dust is a common occurrence. To mitigate the potential adverse effects of coal dust on the working environment, miners’ ealth, and mechanical equipment, a simulation ...
Peng XIAO, Liping CHEN, Bo ZHAO, Shugang LI, Xiaoxiao LIU, Zixi CHEN, Haifei LIN, Bingkun LI, Haiqing SHUANG   +8 more
doaj   +1 more source

Efeito da ativação ultrassônica de soluções irrigadoras sobre a remoção da lama dentinária [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2014.O objetivo deste estudo foi avaliar, longitudinal e quantitativamente por meio de microscópio ...
Schmidt, Tamer Ferreira
core  

Dual‐Stage Microneedle Patch With Lipid Droplet‐Mediated ‘Capture‐Kill’ and Sustained Release for Enhanced Wound Healing

Advanced Science, EarlyView.
We report a lipid‐droplet‐engineered, gallium‐loaded sonodynamic therapeutic platform (LDTG) incorporated into a bilayer microneedle (MN) patch co‐delivering all‐trans retinoic acid (ATRA), termed LDTG A‐MNs, for synergistic antibacterial therapy and accelerated wound repair.
Peng Jiang, Meijun Jiang, Jiapeng Lei, Wen Zhang, Huiyuan Yang, Xueyang Wang, Siyu Zhang, Qiongfang Ruan, Shuhua Liu, Wei Li   +9 more
wiley   +1 more source