27 papers · ranked by Valyu relevance
Jamie M. Waterman, Gareth J. Moore, Loren K. Amdahl-Culleton, Sara Hoefer + 1 more
Biological responses to environmental stimuli are inherently dynamic. Recent technological advances enable detailed time-resolved measurements of such responses. However, a unifying model for the quantitative characterisation of dynamic response curves is lacking, thus limiting biological insights and comparisons. We…
Renhong Liu, Min Wang, Jun-song Zhang, Guangyuan Wang
China Spallation Neutron Source (CSNS) is a high intensity proton accelerator based facility, and its accelerator complex includes two main parts: an H- linac and a rapid cycling synchrotron (RCS). The RCS accumulates the 80MeV proton beam, and accelerates it to 1.6GeV, with a repetition rate of 25Hz. The dipole of the…
Sitong Zhao, Xiaohui Zhang, Hui Yan, Ruming Ma + 3 more
In practical engineering, pile foundation will be subject to the combined action of vertical and Rayleigh wave, and the existence of vertical dynamic load will cause the second-order effect that will lead to the increase of horizontal displacement. This paper presents a computational model for the effect of vertical…
Marc Berneman, Daniel Hexner
Elastic structures can be designed to exhibit precise, complex, and exotic functions. While recent work has focused on the quasistatic limit governed by force balance, the mechanics at a finite driving rate are governed by Newton's equations. The goal of this work is to study the feasibility, constraints, and…
Nicos Makris
This paper derives the causal time-response functions of three-parameter mechanical networks that have been reported in the literature and involve the inerter–a two-node element in which the force-output is proportional to the relative acceleration of its end-nodes. This two-terminal device is the mechanical analogue…
Nicola Menga, Francesco Bottiglione, Giuseppe Carbone
In this paper, we study the dynamic behavior of a Rubber-Layer Roller Bearing (RLRB) interposed between a spring-mass elemental superstructure and a vibrating base. Thanks to the viscoelastic rolling contact between the rigid rollers and the rubber layers, the RLRB is able to provide a nonlinear damping behavior. The…
João Mouro, Rui Pinto, Paolo Paoletti, Bruno Tiribilli
A microcantilever is a suspended micro-scale beam structure supported at one end which can bend and/or vibrate when subjected to a load. Microcantilevers are one of the most fundamental miniaturized devices used in microelectromechanical systems and are ubiquitous in sensing, imaging, time reference, and…
Takeru Katagiri, Sogo Kodama, Kotaro Kawahara, Kazuki Umemoto + 3 more
'Takanori Miyoshi' 'Tadachika Nakayama' 'Youfan Hu'] The sensor response of pressure-sensitive conductive elastomers using polymeric materials can be adjusted by altering the type and quantity of fillers used during manufacturing. Another method involves modifying the surface shape of the elastomer. This study…
M. Alexander Ardagh, Omar A. Abdelrahman, Paul Dauenhauer
Acceleration of catalytic transformation of molecules via heterogeneous materials occurs through design of active binding sites to optimally balance the requirements of all steps in a catalytic cycle. In accordance with the Sabatier principle, the characteristics of a single binding site are balanced between at least…
Hsun-Heng Tsai, Der Ho Wu, Ting-Lung Chiang, Hsin Hua Chen
This paper adopts Taguchi’s signal-to-noise ratio analysis to optimize the dynamic characteristics of a SAW gas sensor system whose output response is linearly related to the input signal. The goal of the present dynamic characteristics study is to increase the sensitivity of the measurement system while simultaneously…
Laihao Liu, Tiankai Chen, Zhongxin Chen
The dynamic response of single atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic and kinetic factors. Herein…
Kehua Lei, Aidan Ladenburg, Zahra Petiwala, Zili Wang + 4 more
Surveys are a powerful tool for collecting data and eliciting insights on social phenomena, and are critical in product design, marketing, scientific research. However, traditional open-ended and closed-ended question formats limit researchers' ability to capture data that combines both the richness of qualitative…
Mohammad Parsa Rezaei, Grzegorz Kudra, Krzysztof Witkowski, Grzegorz Wasilewski + 1 more
Shear-thickening fluids (STFs) become more viscous under shear stress, which makes them useful for many engineering and scientific applications. However, their behavior under normal forces, especially when these forces are applied harmonically, is less understood. Here, we examine the dynamic response of STFs under…
T J Esward, Sascha Eichstädt, I. M. Smith, Thomas Bruns + 2 more
'Peter N. Davis' 'P M Harris'] Recently several European National Measurement Institutes have established traceable calibration methods for dynamic mechanical quantities, e.g., dynamic force, torque and pressure. However, the use in industry and elsewhere of dynamic calibration information provided on certificates is…
Jonathan T. Young, Tetsuhiro S. Hatakeyama, Kunihiko Kaneko
A most important property of biochemical systems is robustness. Static robustness, e.g., homeostasis, is the insensitivity of a state against perturbations, whereas dynamics robustness, e.g., homeorhesis, is the insensitivity of a dynamic process. In contrast to the extensively studied static robustness, dynamics…
Zeying Li, Pengbo Liu, Peng Yan, Nicola Pio Belfiore
Various tools, such as biomedical manipulators, optical aligners, and ultraprecision manufacturing tools, implement nanopositioners that must be dynamically tunable to satisfy the requirements of different working conditions. In this paper, we present the design and analysis of a flexure-based nanopositioner with…
Authors not listed
Advancements in biomedical technologies increasingly demand biocompatible and biodegradable materials capable of integrating with the body for real-time monitoring of physiological processes. Aortic annuloplasty, a procedure to stabilize the aortic root and restore valve function in cases of regurgitation and root…
F. Crevecoeur, J.-L. Thonnard, P. Lefèvre
Humans and animals adapt motor commands to predictable disturbances within tens of trials in laboratory conditions. However in natural conditions, adaptation likely occurs continuously and it remains unknown how the brain handles novel disturbances across time. Because motor commands and sensory feedback together carry…
Hasan Koruk, Srinath Rajagopal, Mohammad Noori, Euan McLeod
Although the physical properties of a structure, such as stiffness, can be determined using some statical tests, the identification of damping parameters requires a dynamic test. In general, both theoretical prediction and experimental identification of damping are quite difficult. There are many different techniques…
Annika Schmidt, Marion Forano, Arne Sachtler, Davide Calzolari + 2 more
Everyday activities, like jumping on a trampoline or using a swing-stick, show that humans seemingly effortless support systems in their intrinsically preferred motions. Although this observation seems obvious, data-based evidence proving that humans indeed match system dynamics has been lacking, since everyday objects…
Yuto Makino, Toshiki Kobayashi, Daichi Nozaki
When a movement error occurs, the motor system updates its commands to improve performance on subsequent trials. A prominent feedback error learning hypothesis proposes that the feedback response that corrects movement within a trial serves as a teaching signal for the learning response, observed as changes in motor…
Jane Kondev, Marc Kirschner, Hernan G. Garcia, Gabriel L. Salmon + 1 more
Many biological processes can be thought of as the result of an underlying dynamics in which the system repeatedly undergoes distinct and abortive trajectories with the dynamical process only ending when some specific process, purpose, structure or function is achieved. A classic example is the way in which…
Authors not listed
Mid-infrared (mid-IR) electrochromism is a promising technology that enables new ways to control radiative heat, which is particularly crucial for applications such as building thermoregulation efficiency, industrial process efficiency, spacecraft thermal engineering, and personal heat management. However, most mid-IR…
Authors not listed
Soft matter is characterized by its relatively strong response to external and internal influences. A soft piece of rubber or biological tissue can be easily deformed between our fingers using muscle force, whereas a steel rod does not show visible deformations detectable by eye. We use theoretical calculations and…
Alawiyah Hasanah Mohd. Alawi, Khisbullah Hudha, Zulkiffli Abd. Kadir, Noor Hafizah Amer + 2 more
'Noor Hafizah Amer' 'Salah A. Faroughi' 'Célio Bruno Pinto Fernandes'] Magnetorheological elastomers (MREs) are a type of smart material that can change their mechanical properties in response to external magnetic fields. These unique properties make them ideal for various applications, including vibration control…
Yanwen Li, Decai Li
Magnetic fluid shock absorbers (MFSAs) have been successfully applied in eliminating the micro-vibration of the spacecraft’s flexible structures. The method of enhancing the damping of MFSAs has always been the key issue. The tree frog’s toe pads exhibit the strong adhesion, which inspired us to learn from their…
Authors not listed
Machine olfaction—the artificial replication of the sense of smell—faces significant challenges due to the absence of large, standardized training datasets. Unlike vision, language, and audio models, which benefit from extensive corpora such as ImageNet, GLUE, and AudioSet, olfaction lacks scaled equivalents and…