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Article
Publication date: 3 April 2007

Lun‐Chen Hsu, Thermpon Ativanichayaphong, Hung Cao, Jeongsik Sin, Mason Graff, Harry E. Stephanou and J.‐C. Chiao

Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high…

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Abstract

Purpose

Selection of a gas sensor requires consideration of environmental effects that can significantly affect performance and cause false alarms. Metal‐oxide sensors have high sensitivity due to the specific interactions of gas molecules with thin metal‐oxide films, however, the films can also be sensitive to variations in temperature and humidity and some oxidizing and deoxidizing gases. The purpose of this paper is to evaluate the environmental effect on metal‐oxide nitrogen dioxide (NO2) sensors quantitatively.

Design/methodology/approach

Three commercial metal‐oxide NO2 sensors and one electrochemical sensor were tested simultaneously under controlled gas concentrations and various environmental conditions. For this test, a customized sensor testing setup was prepared including a gas mixer, heating module, gas chamber, electronics, and data acquisition units.

Findings

Based on the test results for NO2 gas concentrations ranging from 0 to 10 ppm, the metal‐oxide sensors showed significant signal variations at elevated temperatures and humidity. The results provide overall sensor performance. Linearity, repeatability, selectivity and sensitivity of the metal‐oxide sensors were measured and compared to an electrochemical sensor.

Originality/value

A systematic evaluation to characterize metal‐oxide NO2 sensors is presented, and their comparison regarding sensitivity, selectivity, linearity, and dependence on humidity and temperature is reported. The result provides sensor performance data and guideline for sensor evaluation.

Details

Sensor Review, vol. 27 no. 2
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 16 February 2010

Canchu Lin

The purpose of this paper is to propose a research agenda for studying Chinese culture and conflict.

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Abstract

Purpose

The purpose of this paper is to propose a research agenda for studying Chinese culture and conflict.

Design/methodology/approach

Publications on Chinese culture and conflict are searched and reviewed to identify conceptualizations of Chinese culture and key findings on conflict.

Findings

A review of the scholarly literature on Chinese culture and conflict suggests that Chinese culture has been mainly conceptualized as Confucianism and collectivism. Inadequacies of such conceptualizations and their negative effects on empirical research on Chinese culture and management and organization in China have been addressed.

Research limitations/implications

Limitations were not being able to get an exhaustive list of research publications on Chinese culture and conflict.

Practical implications

The paper helps to reduce stereotypes about Chinese conflict management stemmed from previous research

Originality/value

On the basis of recognizing the importance of past research, new directions for researching Chinese culture and conflict that constitute a new research agenda have been proposed.

Details

International Journal of Conflict Management, vol. 21 no. 1
Type: Research Article
ISSN: 1044-4068

Keywords

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