• Journal of Korean Society of Archives and Records Management
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• v.20 no.1
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• pp.89-114
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• 2020

This study aims to present basic data for enhancing the capability of the work by clarifying the duties of the national and public university record management personnel and using IPA (Importance-Performance Analysis) techniques to identify differences and characteristics of the work by job and experience. To this end, the records management personnel of national and public universities were analyzed and surveyed, and the statistical analysis and IPA Matrix were conducted. As measures to solve problems derived from the results of the analysis, mandatory placement of national and public university record researchers, securing budget for performing their work, collection of university history records through various channels, supplementation and revision of records management institutions, and adjustment of job competency based on experience were proposed.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.3
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• pp.9-14
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• 2004

In this study, Si anisotropic etching characteristics of tetramethylammonium hydroxide (TMAH)/ ammonium persulfate(AP)/isopropyl alcohol(IPA) solutions were investigated to realize the optimum structure of a diaphragm for the piezoresistive pressure sensor application. Due to its low toxicity and its high compatibility with the CMOS processing, TMAH was used as Si anisotropic etchants. The variations of Si etch rate on the etching temperature, TMAH concentration, and etching time were obtained. With increasing the etching temperature and decreasing TMAH concentrations, the Si etch rate is increased while a significant non-unifonnity exists on the etched surface because of formation of hillocks on the (100) surface. The addition of IPA to TMAH solution leads to smoother etched surfaces but, makes the Si etch rate lower. However, with the addition of AP to TMAH solution, the Si etch rate is increased and an improvement in flatness on the etching front is observed. The Si etch rate is also maximized with increasing the number of addition of AP to TMAH solution per one hour. The Si square membranes of 20${\mu}{\textrm}{m}$ thickness and l00-400${\mu}{\textrm}{m}$ one-side length were fabricated successfully by applying optimum Si etching conditions of TMAH/AP solutions.

• The Journal of the Korea Contents Association
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• v.8 no.2
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• pp.164-172
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• 2008

This paper investigates passengers' perceptions of the importance and satisfaction of airline service quality for improving the quality level of airline service. Importance-performance analysis(IPA) was utilized to analyze the gap between importance and performance of airline service qualify The result showed that passengers' perceptions of the importance and performance of airline service quality differed for Korean international air passengers. In particular, IPA analysis revealed that four attributes 'meal service', 'seating comfort', 'seat space and legroom', 'check-in service' were identified in the Concentrate Here quadrant-perceived to be important, yet perceived as being performed poorly. The airlines operating from/to the Republic of Korea should concentrate on the attributes included in this quadrant to improve the quality of airline service. On the basis of the IPA analysis, airlines should identify their strengths and weaknesses and draw up a plan to maximize their profits.

• The Journal of Information Systems
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• v.30 no.4
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• pp.329-347
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• 2021

Purpose The purpose of this study is to examine the review of previous studies based on audiobooks, 1) using the IPA method, we examine the quality of audiobooks that listeners perceive as important and the quality of preferred audiobooks, 2) improvement directions for activating audio content and audiobook platform, to seek ways to establish strategic plans for the audiobook market. Design/methodology/approach This study conducted and experiment using three factors(usability, information and interaction) used in web service quality(WebQual). Usability consists of the availability of time, such as the use of audiobooks for hobbies and the ease of search. Information consists of the trends of the times, topics of converation and the latest trends. Interaction consists of the proportion and depth of celebrities. After that, grid analysis was performed using the traditional IPA method and the revised IPA method. It was judged that identifying and analyzing the preference for service provision and new content was more valuable than the Performance used in the existing method. Findings According to the results of the empirical analysis, it was found that the conversation material corresponding to informativity did not affect the audiobook during the online quality analysis. It is believed that improvements can be found through content production related to entertainment, webtoons, and general common sense that can increase listeners' interest. In addition, it was found that the advertising effect of celebrities corresponding to interactivity did not affect the results of this study, which should increase the concentration and immersion of listeners by increasing the technology for audiobooks.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.6D
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• pp.703-709
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• 2009

This article analyzes the obtained data on consciousness survey of disabled and non-disabled pedestrians, and proposes fundamental data for public strategy in order to enhance facilities in subway stations in advance. This paper conduct literature review, new listing survey related to 'The Code for Improvement of Convenience for Moving Vulnerable Pedestrians', and Modified-Importance-Performance Analysis (M-IPA). The results show that disabled pedestrians want enhancement in information facilities as a whole. In addition, the results show that several improvements needs to be applied to accessible sidewalk, to informative notification, to alarm and evacuation system and to toilet for disabled pedestrians. This indicates that disabled pedestrians heavily concentrate on accessibility to subway station and provided information compared with disabled pedestrians.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.5D
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• pp.747-754
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• 2006

Real-time traffic information disseminated through VMS is known to have effects not only on driver to plan a route choice, detour the congestion, and cope with incident, but also on VMS operator to manage the traffic volume indirectly. But, the dissemination of traffic information is operated in the side of provider, not of user. Importance-Performance analysis (IPA) offers a simple, useful method for simultaneously considering both the importance and performance dimensions when evaluating or improving strategy. This technique has been successfully used in a variety of settings to define priorities and guide resource optimization decisions. This study uses IPA to evaluate traffic information strategies through VMS to make resource improvement recommendations. It gained 760 samples by field surveys, which are conducted in Korean Thanksgiving Day, weekday and weekend at the service areas of expressways. The results indicate that the motivations in quadrant I (concentrate here) are dissemination of exactly information and quick transmission, while distance of VMS, most drivers are not satisfied with that is located in quadrant III (low priority).

• Journal of the Health Care and Life Science
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• v.10 no.2
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• pp.169-178
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• 2022

The purpose of this study was to examine the level of awareness of the importance of work ability and their final school contribution and the difference between them among health care workers', and to explore the direction of the health care training curriculum by analyzing using IPA. As for the analysis data, the response data of a total of 465 health care workers among the original data of the 14th (2020) Youth Panel Survey were used. As a result of the analyzing using IPA, concentrate here area was none, and the keep up the good work area was specialized knowledge, practical knowledge in the field of expertise, communication, ability to cooperate with others, customer response capability, ability to learn for oneself, deliberate lifestyle, ability to adapt to change, good job perspective and business manners, understanding documents. Low priority area was computer literacy, ability to creative problem solving, reading and writing in a foreign language, solving math problems, foreign language conversation, and the possible overkill area was creating a document. Based on the these results, implications for effective curriculum development to cultivate health care workers were suggested.

• Transportation Technology and Policy
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• v.7 no.3
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• pp.109-118
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• 2010

• Proceedings of the Membrane Society of Korea Conference
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• 2000.11a
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• pp.104-106
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• 2000

• Membrane Journal
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• v.17 no.1
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• pp.61-66
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• 2007

A zeolite membrane shows better thermal, mechanical and chemical stabilities than a polymer membrane. Water was separated from iso-propyl alcohol (IPA)/water mixtures by pervaporation using the NaY zeolite membrane synthesized in the laboratory. The effects of a mole fraction of IPA in the feed solution and an operating temperature were studied on the permeation flux behavior and the separation factor of water with respect to IPA. As a mole fraction of IPA increased, the water flux as well as the separation factor decreased. As the experimental temperature increased, the water permeation flux increased while the separation factor decreased. For IPA/water binary mixtures, the water flukes through the NaY zeolite membrane were observed to be $1.9{\times}10^2{\sim}3.5{\times}10^3\;g/m^2{\cdot}hr$ and the separation factors were found to be $7.0{\times}10^2{\sim}2.0{\times}10^4$.