-
Article
Open AccessNoninvasive fluid bubble detection based on capacitive micromachined ultrasonic transducers
Ultrasonic fluid bubble detection is important in industrial controls, aerospace systems and clinical medicine because it can prevent fatal mechanical failures and threats to life. However, current ultrasonic ...
-
Article
Open AccessMonolithically integrated triaxial high-performance micro accelerometers with position-independent pure axial stressed piezoresistive beams
With the increasing demand for multidirectional vibration measurements, traditional triaxial accelerometers cannot achieve vibration measurements with high sensitivity, high natural frequency, and low cross-se...
-
Article
Open AccessPiezoelectric-AlN resonators at two-dimensional flexural modes for the density and viscosity decoupled determination of liquids
A micromachined resonator immersed in liquid provides valuable resonance parameters for determining the fluidic parameters. However, the liquid operating environment poses a challenge to maintaining a fine sen...
-
Chapter
Collective Action
Generally speaking, we can define collective action by its two properties: its relation with the existing system and the degree of its organization. Regarding the former, collective action is basically action ...
-
Article
Inner-tubular physicochemical processes of carbon nanotubes
Nanosized inner cavities of carbon nanotubes (CNTs) afford quasi-one-dimensional (1D) confined space, in which materials adsorbed or filled are of reactivity greatly different from the materials adsorbed on a ...
-
Article
Pore structure of SWNTs with high hydrogen storage capacity
This paper reveals, by analyses of nitrogen cryo-adsorption isotherm, the energetic and structural heterogeneity of single-walled carbon nanotubes (SWNTs) which has a high hydrogen storage capacity. It was fou...
-
Article
A new surface treatment method of carbon fibre – liquid-phase–gas-phase double effectiveness method (LGDE)
Liquid-phase coating and gas-phase oxidation surface treatment are considered as a new surface treatment method of carbon fibres. The tensile strength of carbon fibres and the interlaminar shear strength of ca...
