Adsorption and diffusion of methane and light gases in 3D nano-porous graphene sponge

2021 ◽  
pp. 1-9
Author(s):  
Pengfei Xu ◽  
Farzin Rahmani ◽  
Yee C. Chiew
Keyword(s):  
Porous Graphene ◽  
Graphene Sponge ◽  
And Diffusion

A Flexible Tactile Sensor Based on Porous Graphene Sponge for Tiny Force Measurement

2018 ◽  
Author(s):  
Lingfeng Zhu ◽  
Yancheng Wang ◽  
Xin Wu ◽  
Deqing Mei
Keyword(s):  
Force Measurement ◽  
High Sensitivity ◽  
Tactile Sensor ◽  
Tactile Sensors ◽  
Force Detection ◽  
Pressure Sensing ◽  
Porous Graphene ◽  
Graphene Sponge ◽  
Healthcare Monitoring ◽  
Working Principle

Flexible tactile sensors have been utilized for epidermal pressure sensing, motion detecting, and healthcare monitoring in robotic and biomedical applications. This paper develops a novel piezoresistive flexible tactile sensor based on porous graphene sponges. The structural design, working principle, and fabrication method of the tactile sensor are presented. The developed tactile sensor has 3 × 3 sensing units and has a spatial resolution of 3.5 mm. Then, experimental setup and characterization of this tactile sensor are conducted. Results indicated that the developed flexible tactile sensor has good linearity and features two sensitivities of 2.08 V/N and 0.68 V/N. The high sensitivity can be used for tiny force detection. Human body wearing experiments demonstrated that this sensor can be used for distributed force sensing when the hand stretches and clenches. Thus the developed tactile sensor may have great potential in the applications of intelligent robotics and healthcare monitoring.

Highly Ordered 3D Porous Graphene Sponge for Wearable Piezoresistive Pressure Sensor Applications

2019 ◽  
Vol 25 (25) ◽  
pp. 6378-6384 ◽  
Author(s):  
Tao Wang ◽  
Jinhui Li ◽  
Yu Zhang ◽  
Feng Liu ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Porous Graphene ◽  
Sensor Applications ◽  
Piezoresistive Pressure Sensor ◽  
Graphene Sponge

Investigation of dodecane in three-dimensional porous graphene sponge by Raman mapping

2015 ◽  
Vol 27 (5) ◽  
pp. 055702 ◽  
Author(s):  
Xitao Guo ◽  
Hengchang Bi ◽  
Amina Zafar ◽  
Zheng Liang ◽  
Zhixiang Shi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Raman Mapping ◽  
Porous Graphene ◽  
Graphene Sponge

Meridional Circulation, Turbulence, and Diffusion Processes in Stars

1976 ◽  
Vol 32 ◽  
pp. 109-116 ◽  
Author(s):  
S. Vauclair
Keyword(s):  
Convection Zone ◽  
Diffusion Processes ◽  
Meridional Circulation ◽  
Diffusion Time ◽  
Work In Progress ◽  
First Results ◽  
Stellar Envelopes ◽  
And Diffusion ◽  
Turbulence And Diffusion ◽  
Hr Diagram

This paper gives the first results of a work in progress, in collaboration with G. Michaud and G. Vauclair. It is a first attempt to compute the effects of meridional circulation and turbulence on diffusion processes in stellar envelopes. Computations have been made for a 2 Mʘstar, which lies in the Am - δ Scuti region of the HR diagram.Let us recall that in Am stars diffusion cannot occur between the two outer convection zones, contrary to what was assumed by Watson (1970, 1971) and Smith (1971), since they are linked by overshooting (Latour, 1972; Toomre et al., 1975). But diffusion may occur at the bottom of the second convection zone. According to Vauclair et al. (1974), the second convection zone, due to He II ionization, disappears after a time equal to the helium diffusion time, and then diffusion may happen at the bottom of the first convection zone, so that the arguments by Watson and Smith are preserved.

Ordering and diffusion in II-VI/III-VI alloys with structural vacancies

1997 ◽  
Vol 101-103 (1-2) ◽  
pp. 479-487
Author(s):  
H v. Wensierski
Keyword(s):  
And Diffusion
Sign in / Sign up

Export Citation Format

Share Document