• 산업공학
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• 제13권4호
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• pp.751-758
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• 2000

Situation awareness is defined as a person's perception of the elements of the environment within a volume of time and space, the comprehension of their meaning and the projection of their status in the near future. Situation awareness is important in attempting to evaluate human behavior in operating complex systems such as aircraft, air traffic control, and nuclear power plant systems. From the literatures this study reviews the relationship between situation awareness and numerous individual, system and environmental factors, and also reviews the methodologies for the empirical measurement of situation awareness applicable to Korea Next Generation Reactor (KNGR) design project. Attention, working memory, workload, stress, system complexity, and automation are presented as critical factors limiting operator's situation awareness. Mental models and goal-directed behavior are hypothesized as important mechanisms overcoming these limits. This study summarized hypothesized guidelines for interface design to improve situation awareness of reactor operators. Some of the guidelines should be tested in the KNGR evaluation experiments in the future.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권5호
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• pp.2414-2428
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• 2018

In order to solve the problem that the current network security situation assessment methods just focus on the attack behaviors, this paper proposes a kind of network security situation assessment method based on Markov Decision Process and Game theory. The method takes the Markov Game model as the core, and uses the 4 levels data fusion to realize the evaluation of the network security situation. In this process, the Nash equilibrium point of the game is used to determine the impact on the network security. Experiments show that the results of this method are basically consistent with the expert evaluation data. As the method takes full account of the interaction between the attackers and defenders, it is closer to reality, and can accurately assess network security situation.

• 한국심리학회지 : 문화 및 사회문제
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• 제21권3호
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• pp.457-479
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• 2015

본 연구에서는 다양한 연령대의 운전자 집단(대학생, 중년 및 고령운전자)에 따라 주의능력 및 외부환경 적응능력에 대한 주관적 역량평가와 운전이동성 사이의 관련성에 차이가 있는지, 그리고 이러한 관련성이 운전자들의 동기특성에 따라 차별적으로 달라질 수 있는지 살펴보았다. 본 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 운전자의 연령 증가에 따라 주관적 운전역량 평가 수준이 낮아지는 경향이 있었고, 특히 외부환경 적응능력에 대한 평가는 고령운전자 집단뿐만 아니라 중년운전자 집단에게서도 낮아질 수 있다는 것이 관찰되었다. 둘째, 주의능력에 대한 주관적 평가는 세 개의 운전자 집단 모두에서 운전이동성을 정적으로 예측하였으나 외부환경 적응능력은 고령운전자 집단에서만 이러한 관련성이 관찰되었다. 셋째, 대학생운전자 집단과 중년운전자 집단의 경우 두 가지 동기특성 중 접근동기만이 정적으로 운전이동성을 예측하였으나, 고령운전자 집단의 경우는 회피동기만이 부적으로 운전이동성을 예측하였다. 넷째, 중년운전자 집단의 경우에는 접근동기 수준이 높고 주의능력에 대한 주관적 평가가 높을수록 운전이동성이 증가하였으나, 고령운전자 집단의 경우는 회피동기 수준이 높고 자신의 외부환경 적응능력이 저하되어 있다고 평가할수록 운전이동성이 유의하게 낮아지는 경향이 관찰되었다. 이러한 결과는 운전자의 운전이 동성에 미치는 주관적 운전역량 평가와 동기특성의 효과가 운전자의 연령대별로 차별화될 수 있다는 것을 시사한다.

• 자동차안전학회지
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• 제9권3호
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• pp.46-52
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• 2017

In this study, safety evaluation scenarios on "cut-in" situation are presented to assess the performance of automatic emergency braking systems. The ASSESS project in EU is surveyed for derive efficient test scenarios for cut-in situation. The TASS database are also analyzed to find representative accident scenarios in Korea. With the results of the ASSESS and TASS, the safety evaluation scenarios in cut-in situations are suggested and the scenarios are tested with simulation software PRESCAN.

• 대한가정학회지
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• 제43권6호
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• pp.81-96
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• 2005

The Purpose of this study was to examine the present situation and evaluation of Parent education programs after divorce in the USA. Divorce Education Programs for Divorcing Parents have been explosively developed and executed after 1990's in America, and the half of them are court-connected mandatory prevention programs. This paper analyses the social background of nationwide provision, the present situation, and evaluates the evaluation and future prospect of the programs. Finally the implications for the Korean society are suggested.

• 한국의류학회지
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• 제18권2호
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• pp.234-243
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• 1994

This research has studied situational effects on the perceived risk and store choice behavior. Data were obtained from 388 females with full-time jobs living in Pusan. The results analyzed by Spearman's rank correlation analysis, analysis of variance(ANOVA), 1-test and discriminant analysis. The results of this study were as follows; 1. There were significant differences in percieved risk according to the clothing purchasing situations. Performance risk was perceived high in gift-shopping situation and time-pressured situation, and financial risk was perceived high in self-shoving situation. 2. There were particularly significant differences in store attributes evaluation according to the clothing purchasing situations. In self-shopping situation, price, quality and reliability, store loyalty were evaluated as important store attributes. In gift-shopping situation, quality and reliability, product iuomation and in time-pressured situation, store loyalty and product information were evaluated as important store attributes. 3. Consumers preferred national brand franchise stores in self-shopping situation. They preferred department stores in gift-shopping situation and time-pressured situation. The types of selected store were mainly affetted by shopping convenience and location convenience.

• 한국학교수학회논문집
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• 제13권2호
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• pp.185-203
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• 2010

학생들의 수학 학습 정도는 학교수학의 각 영역이나 내용에 따라 다양하게 나타날 수 있다. 이러한 수학 학습상황을 평가하고 활용하기 위한 통합적인 평가 틀의 구성은 유용하다. 본 논문에서는 일차방정식의 내용으로 한정하여 유형별 평가와 문항별 평가에 대한 평가표를 구성하였으며, 두 가지 평가를 기초로 종합평가를 통한 수학 학습 지도에 대하여 알아보았다. 구성한 평가표는 학생 개개인의 학습 상황에 대한 정보를 제공함으로 개별적인 수학 학습 지도에 유용하다.

• International Journal of Contents
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• 제18권1호
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• pp.85-97
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• 2022

Students' perceptions of generosity and fairness in lecture evaluation and grades, communication with professors, and self-fidelity and satisfaction during the COVID-19 situation were statistically analyzed by surveying students at M university in Daejeon. These data were analyzed in the context of parameters that might impact online class lecture evaluations, namely gender and school year. Descriptive analysis shows students' perceptions of online lectures are significantly high. As for differences by gender and school year, the t-test results indicate female students generally have better perceptions of online classes than male students. However, there is no statistical difference between male and female students regarding the generosity of lecture evaluation. Also, ANOVA test results show that as the school year increases, the general perceptions for online classes become negative. However, there is no statistical difference by school year regarding the generosity of lecture evaluation. Regression analysis shows that the "perceptual generosity of grades" most significantly influenced the "perceptual generosity of lecture evaluation."

• 자동차안전학회지
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• 제11권2호
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• pp.44-52
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• 2019

In this study a safety evaluation method is presented for a ADAS vehicle to be tested in collision situation when multiple vehicles are present on a single lane. Test scenarios are developed based on Euro-NCAP assessment scenarios, accident database and related simulation results in previous works. An automated evaluation system that is called as the K-target mover is used for active safety evaluation experiments. The experiments are conducted with two types of tests. First, the rear-end collision tests with 25% and 50% overlap for the test vehicle and target vehicle are conducted with the two kinds of test vehicles. On the other hand, the rear-end collision tests which include multiple vehicles in a single lane with 25% and 50% overlaps, are also conducted. Experimental results show that the test vehicles with ADAS cannot recognize the collision situation sometimes in the developed test scenarios, even in the case that the test vehicle showed stable performance in the simple overlap scenarios.

• 수산해양교육연구
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• 제26권1호
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• pp.223-235
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• 2014

The purpose of this study is to investigate school administrators' perceptions of school evaluation, examining the current situation in the hope of finding solutions to the problems caused by current evaluation. The subjects of this research were consisted of 230 middle and high school administrators in Busan. The instrument used for the study were the questionnaire included 27 questions concerning the current situation, the problems and improvements of school evaluation. The results of this study were as followed: (1) school administrators generally have a positive attitude toward school evaluations. But, they thought need to enhance their leadership qualities so that teachers can feel more positive about participating in school evaluation. (2) school administrators have to show more of an interest in the planning, performance and the use of the results of evaluation. (3) to enhance the quality of teaching practices in school they have to improve their methods for providing feedback of the results of evaluations. (4) the biggest problem related to school evaluation is the lack of quality and professional knowledge of the evaluation teams. And each school develops a unique curriculum and focuses on the improvement of instruction methods.