This paper investigates the level of customer satisfaction among the customers who fly with Air Asia, a budget airline in Malaysia. The factors which investigated are the price offered, pre-flight services, customer relationship management, cabin environment and in-flight services. The independent variable is customer satisfaction. A quantitative approach with Pearson correlation and multiple r...

Abstract: Increasing demand toward driving comfort steers automobile engineers to spend more and more effort on refining the automobile air conditioning system. The system is of high order and operated at the presence of several disturbances. The control algorithm should be able to control the evaporator out temperature with the acceptable control action. In this work, the sliding mode control ...

Voice activity detection (VAD) is an important enabling technology for a variety of speech-based applications including speech recognition, speech encoding, and hands-free telephony. The primary function of a voice activity detector is to provide an indication of speech presence in order to facilitate speech processing as well as possibly provide delimiters for the beginning and end of a speech...

The leakage of tricresyl phosphate-containing engine lubricants into aircraft cabin air, either from worn or defective engine seals or under normal operating conditions, is a serious concern for both the health and safety of the cabin occupants, since the oil contains one to five percent tricresyl phosphate (TCP) esters, known neurotoxins. The exposure of pilots is a particular concern since th...

In this paper, a study of the concurrent engineering design for the environmental friendly low cost aircraft cabin simulator is presented. The study describes the used of concurrent design technique in the design activity. The simulator is a testbed that was designed and built for research on aircraft passenger comfort improvement of long haul air travel. The simulator consists of an scale down...

Worldwide people are exposed to toxic ultrafine particles (UFP, with diameters (dp) less than 100 nm) and nanoparticles (NP, dp < 50 nm) under a variety of circumstances. To date, very limited information is available on human exposure to freshly emitted UFP and NP while traveling on major roads and freeways. We report in-cabin and outdoor measurements of particle number concentration and size ...

This paper presents the details of an overall simulation model that predicts the performance of an automobile air conditioning scroll compressor. Using the overall model, the compressor performance and discharge temperature can be predicted at specific operating conditions. The model will be used in the future to optimize the design of automobile air conditioning scroll compressors. The model w...