• 공학교육연구
• /
• 제17권6호
• /
• pp.3-11
• /
• 2014

This study investigated the effects of WIE(Women into Engineering) programs on women engineers' employment and career duration. For this study, the 91 female graduates with a degree in the field of engineering of K university who graduated from 2010 to 2013 were collected. The female graduates with a degree in the field of engineering of K university were divided into 4 groups-an employment group of relevant field of major, an employment group of irrelevant field of major, a group of graduate school, and a group of unemployment. The results were: first, the female graduates' program participation scores showed meaningful diversity according to the types of employment of female graduates with a degree in the field of engineering. Among the 4 types of employment of female graduates with a degree in the field of engineering, the group of graduate schoolers got the highest program participation scores, and the employment group of relevant field of major got the second scores, the group of unemployment got the third scores, and the employment group of irrelevant field of major got the last scores. Second, The female graduates' program participation scores showed meaningful diversity according to the career duration of female graduates with a degree in the field of engineering. The career duration in accordance with the program participation scores showed meaningful difference between the employment group of relevant field of major and the employment group of irrelevant field of major.

• 대한원격탐사학회지
• /
• 제33권2호
• /
• pp.249-255
• /
• 2017

남극은 기후변화를 이해하는데 있어 중요한 지역 중 하나이며, 선행연구에 따르면 온난화뿐만 아니라 냉각화도 일어나는 복합적인 지역이다. 그렇기 때문에 남극 에너지 수지의 장기간 변화에 대한 파악이 필요하다. 에너지 수지 요소 중 하나인 순복사는 알베도의 영향을 받으며, 이때 알베도는 negative radiative forcing을 일으키는 요소로 작용한다. 남극의 기후 변화 및 얼음-알베도 피드백에서 두 요소 사이의 관계를 면밀하게 분석하기 위해서는 두 요소 사이의 상관관계를 분석할 필요가 있다. 본 연구에서는 위성 자료를 활용하여 남극에서의 순복사량을 계산하고, 장기간 변화를 분석하였다. 순복사는 연구기간 동안 내륙에서 음의 분포를 보였으며, 해양에서는 양의 분포를 보였다. 순복사의 연간 변화의 경우 해양에서 알베도와 반대되는 변화가 관측되었다. 시계열 패턴은 알베도와 순복사가 서로 대칭되어 나타났으며, 두 요소 사이의 상관관계는 남극 내륙에서 -0.73의 높은 음의 상관관계를 보였으며 해양에서는 -0.32의 음의 상관관계를 보였다.

• 대한원격탐사학회지
• /
• 제32권6호
• /
• pp.741-746
• /
• 2016

알베도는 태양에너지의 흡수량을 결정하는 주요 기후 변수 중 하나로서, 이러한 알베도를 산출하는 것은 기후 변화 연구에 있어 중요한 과정이다. 이 때, 산출된 알베도 자료를 효율적으로 사용하기 위해서는 높은 공간해상도와 장기간의 일관성 있는 산출이 중요하게 고려된다. 따라서 본 연구에서는 Landsat 8을 기반으로 Landsat 7과의 일관성을 유지한 고해상도 지표면 광대역 알베도를 산출하였다. 먼저, Landsat 7과 Landsat 8의 채널 별 일관성을 분석한 결과, 상관계수(R)가 평균 0.96으로 높은 상관성을 보였다. 이러한 결과를 바탕으로 Landsat 7 알베도와 Landsat 8 반사도 채널 자료를 다중회귀분석에 적용하여 Landsat 8 광대역 알베도 전환 식을 도출하였다. 도출된 식을 통해 Landsat 8 지표면 광대역 알베도를 산출하고, Landsat 7 알베도 자료와 비교하여 검증하였다. 그 결과 R-square($R^2$)가 0.89, Root Mean Square Error (RMSE)가 0.003의 높은 정확도를 보였다.

• 대한원격탐사학회지
• /
• 제33권3호
• /
• pp.333-338
• /
• 2017

본 연구에서는 산출 방법에 따른 해빙 자료 간의 차이를 조사하기 위하여 1980-2010년 북극 지역의 EUMETSAT OSI SAF, NASA Team(NT)의 해빙 농도와 해빙 면적의 차이를 비교하였다. 그 결과 두 자료의 해빙 농도와 해빙 면적이 계절별, 해역별로 다른 일관성을 보였다. 계절별로는 OSI SAF의 해빙 농도가 전체적으로 0.85 %, 봄 0.48 %, 여름 0.97 %, 가을 1.38 %, 겨울 0.66 % 높게 나타났다. 해역별로는 북극해에서 OSI SAF의 해빙 농도가 2.7 %, 해빙 면적이 19.8만 $km^2$ 높았으나 링컨해 일부에서는 해빙 농도가 2.3 %, 해빙 면적이 2만 $km^2$ 낮게 나타났다.

• 대한원격탐사학회지
• /
• 제39권1호
• /
• pp.77-86
• /
• 2023

Ship detection is widely used in areas such as maritime security, maritime traffic, fisheries management, illegal fishing, and border control, and ship detection is important for rapid response and damage minimization as ship accident rates increase due to recent increases in international maritime traffic. Currently, according to a number of global and national regulations, ships must be equipped with automatic identification system (AIS), which provide information such as the location and speed of the ship periodically at regular intervals. However, most small vessels (less than 300 tons) are not obligated to install the transponder and may not be transmitted intentionally or accidentally. There is even a case of misuse of the ship'slocation information. Therefore, in this study, ship detection was performed using high-resolution optical satellite images that can periodically remotely detect a wide range and detectsmallships. However, optical images can cause false-alarm due to noise on the surface of the sea, such as waves, or factors indicating ship-like brightness, such as clouds and wakes. So, it is important to remove these factors to improve the accuracy of ship detection. In this study, false alarm wasreduced, and the accuracy ofship detection wasimproved by removing wake.As a ship detection method, ship detection was performed using machine learning-based random forest (RF), and convolutional neural network (CNN) techniquesthat have been widely used in object detection fieldsrecently, and ship detection results by the model were compared and analyzed. In addition, in this study, the results of RF and CNN were combined to improve the phenomenon of ship disconnection and the phenomenon of small detection. The ship detection results of thisstudy are significant in that they improved the limitations of each model while maintaining accuracy. In addition, if satellite images with improved spatial resolution are utilized in the future, it is expected that ship and wake simultaneous detection with higher accuracy will be performed.

• 수산해양교육연구
• /
• 제22권2호
• /
• pp.151-164
• /
• 2010

The purpose of this study was to investigate relationships between major satisfaction and career decision efficacy and career attitude maturity of engineering college students by performing canonical correlation analysis. A total of 492 engineering students(male=380, female=112) completed 3 tests. The results of canonical correlation analysis showed a) major satisfaction were significantly associated with career decision efficacy, b) major satisfaction were significantly associated with career attitude maturity, and c) career decision efficacy were significantly associated with career attitude maturity.

• 공학교육연구
• /
• 제16권3호
• /
• pp.69-78
• /
• 2013

This study investigated various attributes that contributed to successful employment in order to develop employment support programs, especially for female engineering students. We surveyed engineering students who graduated between 2006 and 2011. The 401 employed graduates participated in an online survey. The surveys inquired about their attachment towards their major, participation in various academic and non-academic activities, and their participation's contribution to their successful employment. In regards to their majors, women, in general, had lower levels of satisfaction, confidence, attachment, and motivation to succeed in their fields when compared to their male counterparts. These results show that engineering colleges still need to work on empowering female engineering students to gain confidence in their engineering major and attachment. The graduate school experience was highly rated by both men and women, whereas double majors exhibited somewhat lower scores. Among academic activities, part-time work experience and major-related internships were rated as the most helpful, and among extracurricular activities, study-abroad for language training and participation in student council or clubs received high scores. There was little difference between men and women in study-abroad participation, and women participated more actively in student councils. However, women had much less major-related work experience, reaffirming that colleges need to expand internship and field experience programs for female students.

• Nuclear Engineering and Technology
• /
• 제56권7호
• /
• pp.2676-2682
• /
• 2024

Despite its remarkable socioeconomic development, South Korea underperforms in terms of female labor force participation and women in leadership positions. As women appear to avoid nuclear engineering, we aim to evaluate its relative performance in attracting women to its labor force compared to other college majors. Using college-major level information from 2000, we test whether the female faculty share in nuclear engineering is lower than its counterparts. Although nuclear engineering has one of the lowest female faculty shares, its share exceeds that of agricultural science, business and economics, chemical engineering, chemistry, civil engineering, and industrial engineering once we properly control for gender composition among students and other compounding factors. In other words, once female students major in nuclear engineering, they are less likely to leave their fields compared to their counterparts in other disciplines. This result implies that if the nuclear engineering field aims to attract more women to its workforce, it is important to target them from the early stage of their careers.

• 센서학회지
• /
• 제29권1호
• /
• pp.40-44
• /
• 2020

An integrated multifunctional sensor, capable of raising an early electric-fire warning, was fabricated. An arc-light, temperature, and humidity sensor was fabricated on a flexible substrate using a printed thin film of indium tin oxide. A polyethylene terephthalate (PET) substrate was used as the flexible substrate. The sensor was fabricated on a PET substrate, and its operating characteristics were tested. The operating performances of the sensor when serving as an arc-light, a temperature, and a humidity sensor were estimated to be 0.6247 Ω/W, 80.6 Ω/K, and -4.08 Ω/RH, respectively. The feasibility of the proposed fire sensor was demonstrated; it costs low and offers multiple functionalities.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2017년도 추계학술발표대회
• /
• pp.1169-1172
• /
• 2017

스마트 거울은 다양한 IT기술을 활용하여 다양한 정보를 제공해 주는 거울이다. 그러나 기존의 스마트 거울은 단순한 정보만을 제공하거나 기존 정보 시스템에 답습에 그치고 있다. 본 논문에서는 기존 스마트 거울의 기능과 함께 사용자 맞춤형 스타일링 가이드 모드를 최적화한 Iot 기반 스마트 거울 시스템을 제안한다. 제안하는 시스템의 스타일링 가이드모드는 헤어 스타일링 방법 추천과 메이크 업 방법 추천, 퍼스널 컬러를 이용한 화장품 색상 추천 등의 다양한 기능을 제공하여 거울의 본질을 극대화 할 수 있도록 한다. 제안 시스템은 스마트 거울이 갖추어야 할 날씨 정보, 대중교통 도착정보, 길찾기, 일정 관리, 사진 촬영 등의 일반적인 기능을 제공한다. 이를 바탕으로 사용자에게 새로운 스타일링의 접근성과 활용성을 높이고, 다양한 미디어 정보를 통한 정보 활용과 외출 시간을 단축하는 새로운 스마트 거울 시스템을 제안한다.