Dynamically synergistic regulation mechanism for rotation energy harvesting

2021 ◽  
pp. 108637
Author(s):  
Lin-Chuan Zhao ◽  
Hong-Xiang Zou ◽  
Zhi-Yuan Wu ◽  
Qiu-Hua Gao ◽  
Ge Yan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Regulation Mechanism ◽  
Synergistic Regulation ◽  
Rotation Energy

scholarly journals Synergistic regulation mechanism of bionic structure and poly (vinylsulfonic acid) sodium (PVSNa) coating for high load bearing lubrication

2021 ◽  
Vol 1948 (1) ◽  
pp. 012185
Author(s):  
Mengmeng Liu ◽  
Zhifeng Liu ◽  
Caixia Zhang ◽  
Kexin Hou
Keyword(s):  
High Load ◽  
Regulation Mechanism ◽  
Load Bearing ◽  
Synergistic Regulation ◽  
Bionic Structure

Synergistic regulation mechanism of selectin and integrin on leukocyte adhesion under shear flow

2021 ◽  
pp. 1-32
Author(s):  
Wei Kang ◽  
Long Li ◽  
Jizeng Wang
Keyword(s):  
Shear Flow ◽  
Leukocyte Adhesion ◽  
Hydrodynamic Process ◽  
Regulation Mechanism ◽  
Leukocyte Rolling ◽  
Cooperative Effects ◽  
Inflammatory Site ◽  
Synergistic Regulation ◽  
Effective Phase ◽  
Kinetics Of

Abstract In the process of inflammation, the hydrodynamic process of circulating leukocyte recruitment to the inflammatory site requires the rolling adhesion of leukocytes in blood vessels mediated by selectin and integrin molecules. Although a number of experiments have demonstrated that cooperative effects exist between selectins and integrins in leukocyte rolling adhesion under shear flow, the mechanisms underlying how the mechanics of selectins and integrins synergistically may govern the dynamics of cell rolling is not yet fully resolved. Here we present a mechanical model on selectin- and integrin- jointly mediated rolling adhesion of leukocyte in shear flow, by considering two pairs' binding/unbinding events as Markov processes and describing kinetics of leukocyte by the approach of continuum mechanics. Through examining the dynamics of leukocyte rolling as a function of relative fraction of selectin and integrin pairs, we show that, during recruitment, the elongation of intermittent weak selectin bonds consuming the kinetic energy of rolling leukocyte decelerates the rolling speed and enables the integrin pairs to form strong bonds, therefore achieving the arrestment of leukocyte (firm adhesion). The coexistence of selectins and integrins may also be required for effective phase transition from firm adhesion to rolling adhesion, due to dynamic competition in pairs' formation and elongation. These results are verified by the relevant Monte Carlo simulations and related to reported experimental observations.

High Performance Road Energy Harvesting Using Sustained-Release Regulation Mechanism for Self-Powered Traffic Management

2021 ◽  
Author(s):  
Hong-Xiang Zou ◽  
Ying-Jie Zhao ◽  
Ze-Wen Chen ◽  
Lin-Chuan Zhao ◽  
Qiong Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Sustained Release ◽  
Traffic Management ◽  
High Performance ◽  
Regulation Mechanism ◽  
Self Powered

scholarly journals Synergistic regulation mechanism of iperoxo and LY2119620 for muscarinic acetylcholine M2 receptor

RSC Advances ◽  
2018 ◽  
Vol 8 (24) ◽  
pp. 13067-13074 ◽  
Author(s):  
Quan Li ◽  
Hai-Feng Chen
Keyword(s):  
Correlation Network ◽  
Regulation Mechanism ◽  
Muscarinic Acetylcholine ◽  
Synergistic Regulation

Dynamics correlation network was used to reveal the synergistic regulation mechanism of iperoxo and LY2119620 for muscarinic acetylcholine M2 receptor.

scholarly journals THE STRUCTURE OF MOTOR SKILLS AMONG THE STUDENTS AT THE FACULTY OF SECURITY STUDIES

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Darko Paspalj ◽  
Milan Guzvica ◽  
Lazar Vulin
Keyword(s):  
Motor Skills ◽  
Security Studies ◽  
Regulation Mechanism ◽  
The Third ◽  
Explosive Power ◽  
Movement Frequency ◽  
Movement Mechanism ◽  
Synergistic Regulation ◽  
Banja Luka ◽  
Run Speed

A system of 16 motor variables was used to determine thestructure of motor skills in a sample of 84 students at the Faculty of SecuritySciences in Banja Luka. By using factor analysis according to the Kaiser-Guttmanrule, 6 latent motor dimensions were determined. The first factor is defined asthe factor for the structuring movement mechanism, because it is presentedwith the variables used to assess coordination and movement frequency. Thesecond factor is defined as the factor for the mechanism for regulating excitationduration, because it is represented by the measures used to assess the repetitiveand static strength of arms, body, and legs. The third factor is defined as thefactor for the tone regulation and synergistic regulation mechanism, becauseit is represented by the variables used to assess the measures of flexibility. Thefourth factor is defined as the factor for the excitation intensity mechanism,because it is represented by the variable used to assess explosive power throughthe run speed capability. The fifth factor is also defined as the factor forsynergistic regulation and tonus regulation, because it is represented by thevariable used to assess balance, while the sixth factor is defined as the factor forexcitation intensity, because it is represented by three variables used to assessexplosive power and one variable used to assess flexibility. This paper is anattempt to demonstrate that the distinguished hierarchical structure of motorskills is of exceptional theoretical and practical value, whereby these factorsshould represent a determinant for predicting motor skills and programingoperator training in special physical education classes.

An Ultra-Low-Friction Triboelectric–Electromagnetic Hybrid Nanogenerator for Rotation Energy Harvesting and Self-Powered Wind Speed Sensor

ACS Nano ◽  
2018 ◽  
Vol 12 (9) ◽  
pp. 9433-9440 ◽  
Author(s):  
Peihong Wang ◽  
Lun Pan ◽  
Jiyu Wang ◽  
Minyi Xu ◽  
Guozhang Dai ◽  
...  
Keyword(s):  
Wind Speed ◽  
Energy Harvesting ◽  
Low Friction ◽  
Speed Sensor ◽  
Hybrid Nanogenerator ◽  
Self Powered ◽  
Rotation Energy

scholarly journals Regulation mechanism of biomolecule interaction behaviors on the superlubricity of hydrophilic polymer coatings

Friction ◽  
2020 ◽  
Author(s):  
Caixia Zhang ◽  
Junmin Chen ◽  
Mengmeng Liu ◽  
Yuhong Liu ◽  
Zhifeng Liu ◽  
...  
Keyword(s):  
Surface Characteristics ◽  
Polymer Coatings ◽  
Regulation Mechanism ◽  
Hydrophilic Polymer ◽  
Hydration Properties ◽  
Adsorption Film ◽  
Synergistic Regulation ◽  
Interaction Behaviors ◽  
Phosphate Buffered Saline

AbstractHydrophilic polymer coatings can improve the surface characteristics of artificial implants. However, because they are used in vivo, they inevitably come into contact with biomolecules that affect their interfacial tribological properties. In this paper, the friction behaviors of poly(vinylphosphonic acid) (PVPA)-modified Ti6Al4V and polytetrafluorethylene balls were analyzed using albumin, globulin, aggrecan, and hyaluronic acid as lubricants. The interaction properties and dynamic adsorption characteristics of the biomolecules and PVPA molecules were explored by a quartz crystal microbalance to identify the cause of the friction difference. It was found that protein molecules disturbed the superlubricity of the PVPA-phosphate-buffered saline system because of the formation of a stable adsorption film, which replaced the interfacial characteristics of the PVPA coating. Polysaccharides, with their excellent hydration properties and polymer structure, had an unstable dynamic interaction or zero adsorption with PVPA molecules, and hardly changed the superlubricity of the PVPA and phosphate-buffered-saline system. The influence mechanism of the specific friction of proteins and polysaccharides was analyzed. Interactions were observed among different biomolecules. Polysaccharides can potentially reduce protein adsorption. The result of the synergistic regulation of the friction coefficient for PVPA-modified Ti6Al4V is approximately 0.017. The results of this study will provide a theoretical basis for the use of polymer coatings in vivo.

scholarly journals Synergistic Regulation Mechanism of Inorganic Thermal Oxidation Coating and Poly (Vinylphosphonic Acid) (PVPA) Coating for High Load Bearing Superlubricity

2021 ◽  
Vol 11 (1) ◽  
pp. 416
Author(s):  
Mengmeng Liu ◽  
Zhifeng Liu ◽  
Junmin Chen ◽  
Liang Jiang ◽  
Caixia Zhang ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Composite Coating ◽  
Oxide Coating ◽  
Regulation Mechanism ◽  
Low Friction ◽  
Artificial Joints ◽  
Thermal Oxide ◽  
Vinylphosphonic Acid ◽  
Synergistic Regulation ◽  
Titanium Alloy Ti6al4v

A low friction coefficient and high bearing capacity can improve the service life of implants in the human body. In this study, we firstly investigate the mechanical properties of inorganic thermal oxide coatings on titanium alloy (Ti6Al4V). Tribological experiments were performed for different tribo-pairs under uniform conditions. The inorganic thermal oxide coating on Ti6Al4V formed at 300℃ was found to have excellent tribological properties and can effectively improve the bearing capacity of Ti6Al4V. The organic poly (vinylphosphonic acid) (PVPA) on Ti6Al4V has excellent anti-friction properties, which can help achieve superlubricity. An inorganic thermal oxide/organic PVPA composite coating was fabricated on Ti6Al4V to obtain a surface with low friction and high bearing capacity. It is found that the presence of the thermal oxide doubled the bearing capacity of the composite coating compared to that of the PVPA coating alone. This study can serve as a guide for the modification of artificial joints.

Rotation Energy Harvesting Device

2014 ◽  
Vol 548-549 ◽  
pp. 895-900
Author(s):  
Bor Jang Tsai ◽  
Jung Chi Wang
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Low Cost ◽  
Mechanical Energy ◽  
Green Buildings ◽  
Battery Power ◽  
Self Sufficiency ◽  
Micro Electromechanical System ◽  
Rotation Energy ◽  
Instantaneous Energy

An innovative approach to energy harvesting is to integrate the capture of fragmented energy with micro-electromechanical system (MEMS) to achieve the power self-sufficiency needed for the circuit to function as an autonomous system. This study used a micro-motor as a micro-generator for capturing not only fragmented energy, but also instantaneous energy. The experimental results confirm that energy can be captured from uncollected daily rotational mechanical energy with sufficiently high efficiency and low cost to replace the conventional battery power used in wireless sensors. Applications of this technology in green buildings can not only reduce the energy wasted by wiring, but can also improve internal aesthetics.

Hybrid piezo/triboelectric nanogenerator for highly efficient and stable rotation energy harvesting

Nano Energy ◽  
2019 ◽  
Vol 57 ◽  
pp. 440-449 ◽  
Author(s):  
Chunlin Zhao ◽  
Qian Zhang ◽  
Wenliang Zhang ◽  
Xinyu Du ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Triboelectric Nanogenerator ◽  
Highly Efficient ◽  
Rotation Energy ◽  
Stable Rotation
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