Recent Advances in Smart System

A special issue of Micromachines (ISSN 2072-666X).

Deadline for manuscript submissions: closed (31 December 2015) | Viewed by 9874

Special Issue Editors


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Guest Editor
1. Department of Mechanical Engineering, National Chung Cheng University, Chiayi 621301, Taiwan
2. Advanced Institute of Manufacturing with High-tech Innovations, National Chung Cheng University, Chiayi 621301, Taiwan
Interests: non-linear system analysis and control; robust control; electrical and mechanical system control; signal processing; communication security and confidentiality control
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Mechanical Engineering, National Chung Hsing University, 250 Kuo Kuang Rd., Taichung 402, Taiwan
Interests: high precision instrument design; laser engineering; smart sensors and actuators; optical device; optical measurement; metrology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Smart systems typically consist of diverse components: (1) Sensors for signal acquisition; (2) Elements transmitting the information to the command-and-control unit; (3) Command-and-control units that take decisions and give instructions based on the available information; (4) Components transmitting decisions and instructions; and (5) Actuators that perform or trigger the required action. A great number of smart systems evolved from microsystems. They combine technologies and components from microsystems technology (miniaturized electric, mechanical, optical, and fluidic devices) with other disciplines such as biology, chemistry, nanoscience, or cognitive sciences. By definition, smart materials and smart structures—and by extension smart systems—consist of systems with sensors and actuators that are either embedded in or attached to the system to form an integral part of it. The system and its related components form an entity that will act and react in a predicted manner, and ultimately behave in a pattern that emulates a biological function. New knowledge in this field will aid in the advancement of various technologies that are needed to gain industrial competitiveness. To this end, the Special Issue aims to disseminate the latest advancements of relevant fundamental and applied research works of high quality to the international community. Topics will include:

1. Recent advances in sensing materials and devices for smart system;
2. Recent advances actuation materials and devices for smart system;
3. Recent advances in control devices and techniques for smart system;
4. Recent advances in self-detection, self-diagnostic, self-corrective, and self-controlled functions of smart materials/systems.

Prof. Dr. Chien-Hung Liu
Prof. Dr. Her-Terng Yau
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


Keywords

  • smart system
  • sensing system
  • actuation
  • smart control
  • micro manufacture
  • nanoscience
  • Integration

Published Papers (2 papers)

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3672 KiB  
Article
Sandwiched Long-Period Fiber Grating Fabricated by MEMS Process for CO2 Gas Detection
by Chao-Wei Wu and Chia-Chin Chiang
Micromachines 2016, 7(3), 35; https://doi.org/10.3390/mi7030035 - 25 Feb 2016
Cited by 15 | Viewed by 5017
Abstract
This paper presents an optical fiber gas sensor based on sandwiched long-period fiber grating (SLPFG) that is fabricated via the microelectromechanical systems (MEMS) process and coated with amino silica adsorbent for carbon dioxide (CO2) gas sensing. The amine-modified nanoporous silica foams [...] Read more.
This paper presents an optical fiber gas sensor based on sandwiched long-period fiber grating (SLPFG) that is fabricated via the microelectromechanical systems (MEMS) process and coated with amino silica adsorbent for carbon dioxide (CO2) gas sensing. The amine-modified nanoporous silica foams were coated onto the SLPFG for CO2 adsorption. To characterize the CO2 adsorption of the SLPFG sensor, a gas sensing test was conducted with a mixed gas consisting of 15% CO2 and 85% nitrogen at a flow rate of 0.2 L/min. The results showed that the spectra of the SLPFG were varied with the gas flow within 21 min. After that, the transmission spectra of the SLPFG held steady and exhibited no further change. This phenomenon was caused by the adsorption saturation of the amine-modified nanoporous silica foams which were coated onto the SLPFG. During the absorption process, the transmission was increasing by about 11.27 dB (from −23.11 to −11.84 dB), and the increasing rate of transmission was 0.4598 dB/min. Repeatable adsorption and desorption experiment results showed that the SLPFG CO2 gas sensor exhibited good repeatability and a short response time. The recovery rate for each cycle was about 85%, and the required recovery time was short. Therefore, elaborated SLPFG gas sensor could potentially be used as a gas sensor for monitoring CO2 adsorption in the context of various industrial, agricultural, and household applications. Full article
(This article belongs to the Special Issue Recent Advances in Smart System)
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858 KiB  
Article
Combined Forced and Thermocreep Convection through a Long Horizontal Microchannel
by Huei Chu Weng
Micromachines 2016, 7(2), 33; https://doi.org/10.3390/mi7020033 - 19 Feb 2016
Cited by 5 | Viewed by 4183
Abstract
This study examines how thermal creep affects the mixed convection in a long horizontal parallel-plate microchannel under a pressure drop and a temperature rise. The analytical solutions of the fully developed thermal-flow fields and the corresponding characteristics are derived based on the Maxwell [...] Read more.
This study examines how thermal creep affects the mixed convection in a long horizontal parallel-plate microchannel under a pressure drop and a temperature rise. The analytical solutions of the fully developed thermal-flow fields and the corresponding characteristics are derived based on the Maxwell boundary conditions with thermal creep and presented for the physical properties of air at the standard reference state. The calculated thermal-flow characteristics reveal that thermal creep has an appreciable effect on the velocity slip, flow rate, and heat transfer rate but a negligible effect on the flow drag. Such a creep effect could be further magnified by decreasing the pressure drop or increasing the Knudsen number. Full article
(This article belongs to the Special Issue Recent Advances in Smart System)
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