Results 131 to 140 of about 87,666 (303)

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

Advanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng, Yiqun Wang, Kaiyou Liu, Shancheng Luan, Yajiang Yin, Xiaofeng Wang, Keren Dai, Zheng You   +7 more
wiley   +1 more source

Disaster-causing mechanism and control technology of interlayer rock breakage in gently inclined close distance coal seams mining

Scientific Reports
Aiming at the complex issue of dynamic disasters induced by hard rock layers fracture during the mining of gently inclined close distance coal seams, this study employs an integrated approach combining numerical simulation, microseismic monitoring, and ...
Xiaoqian Yuchi, Xuanhong Du, Pan Shu, Lan Yu, Wulin Lei, Wenhua Yang, Ze Zhang   +6 more
doaj   +1 more source

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

Advanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang, Geng Huangfu, Hongjie Zhang, Tiannan Yang, Zhenhua Ma, Jingsheng Chen, Yun Liu, Yiping Guo   +7 more
wiley   +1 more source

Drop‐Shaped Optical Microfiber Enabled Biomechanical Sensor

Advanced Science, EarlyView.
A novel microforce sensor based on a drop‐shaped optical microfiber is presented herein, designed to characterize the biomechanical properties of single cells and microscale living organisms, achieving a force resolution of 24 nN. Leveraging its high sensitivity, facile miniaturization, excellent flexibility, and robust mechanical stability, this ...
Yan Xu, Xitao Tu, Haochen Jiang, Jun Mo, Xinyue Zhang, Xiaomin Yue, Limin Tong, Lei Zhang   +7 more
wiley   +1 more source

Research on the Method of Prestressing Tendon Layout for Large-Span Prestressed Components Continuous Rigid Frame Bridge Based on “Zero Bending Moment Dead Load Theory”

Buildings
Based on the theory of zero bending moment under constant load, various optimization methods exist for the top beam of large-span continuous rigid frame bridges.
Fanggang Liu, Lixiong Gu, Haishan Fu, Xinping Li, Xiaolong Zhao, Niujing Ma, Zhaolong Guo   +6 more
doaj   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

A Neural Network Approach to Estimate the Frequency of a Cantilever Beam with Random Multiple Damages. [PDF]

Sensors (Basel), 2023
Saha P, Yang M.
europepmc   +1 more source

A Data‐Driven Inverse Design Methodology for Magnetic Soft Millirobots Navigating in Confined Spaces

Advanced Science, EarlyView.
A data‐efficient inverse design framework automates the optimization of magnetic soft millirobots for confined‐space navigation. Integrating a physics‐based Cosserat rod model with Bayesian optimization efficiently identifies high‐performance geometries.
Ziyu Ren, Hong Wang, Chak Wang Tse, Yi Zheng, Xi Chen, Wenqi Hu   +5 more
wiley   +1 more source

Experimental Study on Fiber Optic Strain Characterization of Overlying Rock Layer Movement Forms and States Using DFOS

Photonics
Mastering the movement laws of hard overlying rock layers is the foundation of the development of coal mining technology and plays an important role in improving coal mine safety production.
Tao Hu, Fengjun Wei, Jintao Wang, Yan Wang, Chunhua Song, Kuiliang Han, Kaiqiang Han   +6 more
doaj   +1 more source

Mathematical Modeling of the Effect of Temperature on the Dynamic Characteristics of a Cantilever Beam with Flexible Root. [PDF]

ScientificWorldJournal, 2023
Mohammed Sarhan S, Al-Zubaidi S.
europepmc   +1 more source