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The study aimed to translate the Depressive Cognition Scale (DCS) into Chinese and to test its reliability and validity among Chinese older people. Using a cross-sectional design, a demographic questionnaire and Chinese versions of the Depressive Cognition Scale (DCS-CHI) and the Center for Epidemiological Studies-Depression Scale (CES-D) were administered. The sample consisted of 1673 older people...
This paper analyzes the mechanism of low pressure discharge probably occured in the process of Aerospace Photoconductive Infrared Detector life test. It is verified that low pressure discharge can take place in the equipment of life test. Under the condition of the sudden heavy leakage of gas sealed in the detector the low pressure condition in the vacuum chamber appears. Accompanied with the leakage...
Decision makers are required to make critical decisions throughout all stages of a life-cycle in large-scale projects. These decisions are important as they impact upon the outcome and the success of projects. In this paper we present an evidential reasoning framework to aid decision-makers in the decision making process. This approach utilizes the Dezert-Smarandache Theory (DSm) to fuse heterogeneous...
Energy consumption and reliability are two critical issues in wireless sensor networks (WSNs). What is the length of lifetime of a WSN in an unreliable environment is our focus. In this paper, the clustering scheme is introduced firstly. A data aggregation tree model is formed in the periodic data collection application. Based on this model, the energy consumption and reliability issues are analyzed,...
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