테마파크의 환경단서 분석과 발전방안에 관한 연구 : 대전동물원(오­월드) 방문객을 중심으로

박종진(Park, Jong-jin),최지혜(Choi, Jie-hye) 한국부동산정책학회 2017 不動産政策硏究 Vol.18 No.3

The purpose of this study is to investigate Daejeon Zoo(O-world), which has been attracting attention as a leisure space of Daejeon citizens, in order to complement the scarce tourism resources in Daejeon area and to improve visitor satisfaction and return visit through more efficient and pre - And to suggest a strategy. Especially, it is an empirical study to present the direction that the Daejeon Zoo should prepare or proceed through the analysis of the environmental cues of the Daejeon Zoo. The purpose of this study is to present practical implications. As a result of the study, the most high level of visitor s problems is the necessity to improve the facilities inside the park. In addition, the cost per person is low compared to other theme parks, and the time required to stay is low. Therefore, most of the visitors are not able to use the annual membership or discount program, In order to overcome these problems, it is essential to install more new facilities in the park and to develop new programs that can operate continuously.

교육시설분야의 건축계획 연구동향 분석

박종진,소갑수,김승제,Park, Jong-Jin,So, Kab-Soo,Kim, Seung-Je 한국교육시설학회 2012 敎育施設 Vol.19 No.6

According to the reports by the OECD and UN in 2012, Korea is evaluated highly of its enthusiasm and level of education compared to other evaluation indices. This result implies that Korea has much more interest in education than other countries. In reality however, the nation does not provide an adequate condition in other aspects such as the quality of life of citizens and its educational environment. For this reason, our country currently promotes and operates various policies and environmental improvements in an effort to coincide with the timely demands and to cope up with the advanced educational system. Researches in particular are being implemented on Korea's current educational policies by specialists related to their specific fields. This study is to understand the periodic trends of the educational facilities according to the specialist-oriented articles and apply it as a basic resource to the future researches on the corresponding field.

퍼지 모델과 유전 알고리즘을 이용한 쓰레기 소각로의 연소 제어

박종진,최규석,Park, Jong-Jin,Choi, Kyu-Seok 한국정보처리학회 2000 정보처리논문지 Vol.7 No.7

본 논문에서는 퍼지 모델과 유진 알고리즘을 이용한 쓰레기 소각로의 언소 제어를 제안한다. 먼저 복잡하고 비선형 시스템인 소각로의 퍼지 모델을 얻기 위해 퍼지 모델링이 수행된다. 얻어진 퍼지 모델은 주어지는 입력에 대해 소각로의 출력을 예측한다. 그리고 유전 알고리즘을 이용하여 원하는 소각로 츨려에 대해 모든 가능한 해 집합 안에서 최적 제어입력 값을 탐색하고 얻어진 최적 제어입력은 소각로에 인가되어 제어가 행해진다. 제안된 방법의 성능을 평가하기 휘해, 증발량을 출력으로 하는 소각로 연소제어의 컴퓨터 시뮬레이션이 수행되었다. 그 결과, 소각로의 퍼지 모델의 성능 평가지수 ISE(오차제곱 적분)는 0015로 매우 작았으며, 연소제어 시 증발량은 설정값 주위에서 일정하게 유지되고, 제안된 방법에 의한 성능지수 ITAE는 352로 수동운전에 의한 결과 1275보다 우수하였다. In this paper we propose combustion control of refuse incineration plant using fuzzy model and genetic algorithm. At first fuzzy modelling is performed to obtain fuzzy model of the refuse incineration plant and obtained fuzzy model predicts outputs of the plant when inputs are given. Fuzzy model ca be used to obtain control strategy, and train and enhance operators' skill by simulating the plant. Then genetic algorithms search and find out optimal control inputs over all possible solutions in respect to desired outputs and these are inserted to plant. In order to testify proposed control method, computer simulation was carried out. As a result, ISE of fuzzy model of refuse incineration plant is 0.015 and ITAE of control by proposed method, 352 which is better than that by manual operation.

금왕 금·은광산 주변 지구화학적 환경에서의 중금속 원소들의 분산

박종진,김명균,전효택,Park, Jong-Jin,Kim, Myeong-Kyun,Chon, Hyo-Taek 대한자원환경지질학회 1997 자원환경지질 Vol.30 No.5

Soil, tailings, stream sediment and surface water samples collected in the vicinity of the Geumwang Au-Ag mine were analyzed in order to investigate the pollution level of heavy metals and to determine the dispersion patterns. Although the maximum concentrations of soils collected at the flotation plant and tailings dam were 9,270 ppm As, 17 ppm Cd, 1,480 ppm Cu, 10,080 ppm Pb and 18,400 ppm Zn, dispersion of heavy metals were limited in the vicinity of the flotation plant and tailings dam. This may be due to high pH values (> 8.0) of the soils by flotation solution for mineral processing. The pH values of water samples near the flotation plant and tailings dam were over 8.0 and Cd, Cu and Zn concentrations were not detected. The waters in the vicinity of Geumwang mine generally belong to a $Ca^{2+}-SO_{4}{^{2-}}$ $(HCO_3{^-})$ type.

미국 단조산업의 현황과 전망

박종진,Park, Jong-Jin 재료연구소 1992 機械와 材料 Vol.4 No.1

소성가공을 위한 연성파괴조건의 재고찰

박종진,이영석,Park, Jong-Jin,Lee, Young-Seok 대한기계학회 1997 大韓機械學會論文集A Vol.21 No.7

In metalforming, ductile fracture criteria have been used for the purpose of predicting fracture occurrence in the stage of process design prior to manufacturing. In the present investigation, some of popular criteria are reviewed to find the most suitable one among them. As a result, it is found that the modified Cockroft and Latham criterion is better than others. The reasons are: it agrees with Roy's and McClintock's void growth models, it is more general than Oyane's and Kuhn's criteria, and it predicts fractures in compression as well as in tension well. However, it is also found that the criterion is incapable of predicting fractures in torsion.

수중글라이더를 활용한 동해 아중규모 중층성 소용돌이 발견

박종진,PARK, JONGJIN 한국해양학회 2019 바다 Vol.24 No.2

2017년 8월 7일부터 25일까지 수중글라이더를 활용하여 $37.9^{\circ}N$ 위도 라인를 따라 동경 $129.0^{\circ}E{\sim}131.3^{\circ}E$ 사이를 왕복하는 단면 관측을 수행하였다. 해당 경로는 국립수산과학원 정기선박 관측라인 중 106 라인을 따른 것으로 이 경로를 따라 약 18일간 운용하였으며 위치 유지 모드로 동작했던 시간을 제외하고 총 440 km를 비행하였고, 그동안 고해상도 수온 및 염분의 공간 단면을 관측하였다. 본 관측 해역은 약 0.8 m/s의 강한 유속을 갖는 동한난류가 북상하고 있는 상황이었음에도 불구하고, 해당 수중글라이더는 지정된 경로에서부터 RMS 거리 400 m 이내를 벗어나지 않고 정확하게 106 라인을 따라 비행하였다. 본 관측에서 얻어진 고해상도 물성 단면 구조를 국립수산과학원 정선 관측 자료와 비교함으로써 해양환경에 지대한 영향을 끼치는 전선역이나 소용돌이와 같은 현상을 관측하기 위해서 고해상도 관측이 얼마나 중요한지 확인할 수 있었다. 이러한 수중글라이더 관측을 통해 이제까지 발견하지 못했던 새로운 소용돌이를 발견할 수 있었다. 이 소용돌이는 수평폭이 10~13 km, 수직폭은 200 m 가량되는 렌즈 형태를 가지고 있으며 시계방향으로 회전하는 아중규모 중층성 소용돌이(submesoscale intrathermocline eddy)다. 수온약층 내 혹은 직하부에 존재하면서 아중규모의 렌즈형태의 구조를 갖는 이러한 중층성 소용돌이는 동해에서 처음 발견되었기 때문에 Korea intrathermocline eddy(Keddy)로 명명하였다. 이 Keddy는 다음과 같은 전형적인 중층성 소용돌이(intrathermocline eddy)의 특징을 가지고 있다. Keddy는 수온약층 하부인 수심 약 170 m, 즉 중층에서 유속최대값을 갖는 특징이 있고, 따라서 해표면에는 해당 지오포텐셜 구조가 드러나지 않는 2차 순압성 구조를 가지고 있다. 또한 중앙부의 성층화가 주변보다 약하고, 수평크기가 1차 순압성 로스비 변형반경과 유사하며, 로스비 수가 0.7로 1에 근접한다. Zonal hydrographic section measurements at $39.7^{\circ}N$ were conducted between $129.0^{\circ}E$ and $131.3^{\circ}E$ from August 7 to 25 in 2017 using an underwater glider. The glider traveled about 440 km for about 18 days along the 106 line of the regular shipboard measurements in the National Institute of Fishery Science (NIFS) and obtained twice a hydrographic section with high horizontal resolution. Even under the strong East Korea Warm Current with maximum speed of 0.8 m/s across the section, the glider successfully maintained the designated path within an RMS distance of 400 m. By comparing with the NIFS shipboard hydrographic section, it is confirmed that high spatial resolution measurements obtained from a glider were necessary to properly observe front and eddy variability in the East Sea where a typical spatial scale is smaller than the open oceans. From the glider section measurements, a new lens-shaped eddy was found in the thermocline. The lens-shaped anticyclonic eddy had 10~13 km in horizonal width and about 200 m in height like a typical submesoscale eddy resided within the thermocline, which was firstly named as Korea intrathermocline eddy (Keddy). The Keddy has the distinguishing characteristics of a typical intrathermocline eddy, such as a central core with anomalously weak stratification, a convex shaped lens bounded by the stratification anomaly, an interior maximum of velocity at 170 m, no surface appearance of the geopotential field, a small or comparable horizontal width relative to the first baroclinic Rossby radius of deformation, and the Rossby nubmer of 0.7.

첨단안전장치 장착 버스의 사고사례 분석

박종진,최영수,박정만,Park, Jongjin,Choi, Youngsoo,Park, Jeongman 한국자동차안전학회 2021 자동차안전학회지 Vol.13 No.3

Recently a traffic accident of heavy duty vehicles under the mandatory installation of ADAS (Advanced Driver Assistance System) is often reported in the media. Heavy duty vehicle accidents are normally occurring a high number of passenger's injury. According to report of Insurance Institute for Highway Safety, FCW (Forward Collision Warning) and AEB (Automatic Emergency Braking) were associated with a statistically significant 12% reduction in the rate of police-reportable crashes per vehicle miles traveled, and a significant 41% reduction in the rear-end crash rate of large trucks. Also many countries around the world, including Korea, are studying the effects of ADAS installation on accident reduction. Traffic accident statistics of passenger vehicle for business purpose in TMACS (Traffic safety information Management Complex System in Korea) tends to remarkably reduce the number of deaths due to the accident (2017(211), 2018(170), 2019(139)), but the number of traffic accidents (2017(8,939), 2018(9,181), 2019(10,095)) increases. In this paper, it is introduced a traffic accident case that could lead to high injury traffic accidents by being equipped with AEB in a bus. AEB reduces accidents and damage in general but malfunction of AEB could occur severe accident. Therefore, proper education is required to use AEB system, simply instead of focusing on developing and installing AEB to prevent traffic accidents. Traffic accident of AEB equipped vehicle may arise a new dispute between a driver's fault and vehicle defect. It is highly recommended to regulate an advanced event data recorder system.

H 형강압연 해석기술의 응용

박종진,김정호 ( Jong Jin Park,Jeong Ho Kim ) 대한금속재료학회 1996 압연기술의 현재와 미래 Vol.- No.-

Java를 이용한 웹 기반 원격 감시제어시스템 개발

박종진,Park, Jong-Jin 한국컴퓨터산업학회 2007 컴퓨터産業敎育學會論文誌 Vol.8 No.1

In this paper, a example of a development of web-based remote monitoring and control system using Java technology on TCP/IP is proposed. We implemented Client/Server socket programs using Java Socket class, and applied those to a greenhouse made from LEGO blocks and made web-based greenhouse remote monitoring and control system. Implemented System transferred states of greenhouse to client programs, and control signals from client program were transferred to Server. Greenhouse model was controlled well by the system. 본 논문은 Java 기술을 이용하여 TCP/IP 상에서 웹 기반의 원격 감시제어시스템 개발에 대한 예를 제시하였다. Java의 Socket 클래스를 이용한 클라이언트/서버 소켓 프로그램을 구현하였고 이를 레고 블록으로 만든 온실 모델에 적용하여 웹 기반 온실 감시제어시스템을 구축하였다. 구축된 웹 기반 온실 감시제어시스템은 온실의 정보를 클라이언트 프로그램에 잘 전달하여 표시하며 웹 상에서 동작하는 Java Applet 클라이언트에서 보내는 제어 신호를 서버를 통해 온실 모델에 잘 전달하여 동작시키는 것을 볼 수 있었다.