Results 91 to 100 of about 1,371 (244)

Incorporating electrostatic effects into the effective stress relation - Insights from chalk experiments [PDF]

, 2018
Which forces are responsible for holding highly porous chalks together? We use the effective stress to quantify the electrostatic effects around particle contacts originating from the adsorption of ions onto charged mineral surfaces.
Eirik Vika Storm, Stødle, Trond, Trond Stødle, Nermoen, Anders, Korsnes, Reidar Inge, Stodle, Trond, Reidar Inge Korsnes, Merete Vadla Madland, Madland, Merete Vadla, Storm, Eirik Vika, Anders Nermoen, Storm, Eirik V., Ida Lykke Fabricius, Fabricius, Ida Lykke   +13 more
core   +1 more source

Electrostatically actuated encased cantilevers

Beilstein Journal of Nanotechnology, 2018
Background: Encased cantilevers are novel force sensors that overcome major limitations of liquid scanning probe microscopy. By trapping air inside an encasement around the cantilever, they provide low damping and maintain high resonance frequencies for ...
Benoit X. E. Desbiolles, Gabriela Furlan, Adam M. Schwartzberg, Paul D. Ashby, Dominik Ziegler   +4 more
doaj   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Vibration of a Rotating Micro-Ring under Electrical Field Based on Inextensible Approximation

Sensors, 2018
The problem of vibrations of rotating rings has been of interest for its wide applications in engineering, such as the vibratory ring gyroscopes. For the vibratory ring gyroscopes, the vibration of a micro ring is usually actuated and sensed by means of ...
Tao Yu, Jiange Kou, Yuh-Chung Hu
doaj   +1 more source

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

Electrostatic Effects on the Conformation and Elasticity of Hyaluronic Acid, a Moderately Flexible Polyelectrolyte

, 2017
Hyaluronic acid (HA) is a charged polysaccharide with an intrinsic stiffness intermediate between flexible and semiflexible polymers. To investigate the interplay of that stiffness with solution electrostatic interactions, we perform single-molecule ...
Omar A. Saleh (21871), John P. Berezney (3691339)   +1 more
core   +1 more source

Investigation of New Accelerometer Based on Capacitive Micromachined Ultrasonic Transducer (CMUT) with Ring-Perforation Membrane

Micromachines
Capacitive micromachined ultrasonic transducer (CMUT) has been widely studied due to its excellent resonance characteristics and array integration. This paper presents the first study of the CMUT electrostatic stiffness resonant accelerometer. To improve
Luhao Gou, Hongliang Wang, Qi Ding, Yulong Liu, Runze Yang, Feng Zhang, Pengcheng Zhang, Gang Cao   +7 more
doaj   +1 more source

Stiffener Layout Optimization of Inlet Structure for Electrostatic Precipitator by Improved Adaptive Growth Method

Advances in Mechanical Engineering, 2014
The inlet structure is the main part of an electrostatic precipitator, so its mechanical properties, including the static strength, stiffness, and vibration characteristics, play an important role in the structural safety.
Jin Ji, Xiaohong Ding
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

A Two-Axis Orthogonal Resonator for Variable Sensitivity Mode Localization Sensing

Sensors
This paper experimentally demonstrates a mode localization sensing approach using a single two-axis orthogonal resonator. The resonator consists of concentric multi-rings connected by elliptic springs that enable two orthogonal oscillation modes.
Yuta Nagasaka, Alessia Baronchelli, Shuji Tanaka, Takashiro Tsukamoto   +3 more
doaj   +1 more source