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In order to improve the electric car battery safety early warning ability and decrease the safe accident of electric vehicle charging, the electric vehicle charging safety factors are analyzed, the security early warning index selection ways and methods are studied, and a security early warning evaluation index system is set, the evaluation method of weight for safety index is discussed. Besides,...
In this work, we focus on modeling user-generated review and overall rating pairs, and aim to identify semantic aspects and aspect-level sentiments from review data as well as to predict overall sentiments of reviews. We propose a novel probabilistic supervised joint aspect and sentiment model (SJASM) to deal with the problems in one go under a unified framework. SJASM represents each review document...
This paper focuses on the thermal stability of a high performance, low-range calibration setup for differential air pressure sensors. The setup is a dual parallel chamber design with the full range of ±320 Pa, which can be translated to a temperature mismatch of only about 0.93°C between the chambers. Due to the limitations of existing temperature measurement technology, we propose a finite element...
Smartphones and mobile devices have greatly penetrated the daily lives of many people. While participatory/pervasive sensing has gained wide adoptions by leveraging various onboard sensors on mobile devices, another powerful resource, the computational power on these mobile devices has been less frequently harnessed by researchers and practitioners. To fill this gap, we propose in this work the modeling,...
To acquire higher performance of direct-operated electro-hydraulic proportional-reducing valve, driving circuit and controller was developed. Simulation software, AMESim, was used to develop the model of the test bench according to construction and working principles presented in this paper. The results of simulation and experimental test, including pressure control characteristics and frequency response...
Digital instrumentation and control systems has been widely used to high-risk system, which changes the context influencing human performance, cognitive processes and human-machine interaction, thus lead to new human errors and error mechanism. This paper constructs the extended human error analysis model for analyzing the possible cognitive and action errors. And then human error causal factors are...
Water quality monitoring is a prerequisite for water pollution control. The rapid development of remote sensing technology will provide a new technical support. In this paper, with the study of the Weihe River in Shaanxi Province, RWQMS (Remote-sensing Water Quality Monitoring System V1.0) is designed and implemented based on SPOT-5 remote-sensing image and the system structure and key technologies...
This research aims at the bus holding strategies for the simulation of mass rapid transit (MRT) transferring system in a terminal station with platform constraints for bus in the metropolitan area. We developed and evaluated the transfer system through computer simulation models for MRT with bus system that the goals of bus holding strategies in the model were: reduce bus waiting time, reduce passengers...
The ability of economic data analysis is very important to information major students in economic and economic universities. However, mastering the skill of economic data analysis is not easy to them. The design and construction of a teaching model based on schema theory in economic data analysis curriculum is described, and then it is applied to information major students. The teaching result shows...
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