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.

정신건강 관리용 모바일 헬스케어 앱 개발 -분노 관리를 중심으로-

박종진,최규석,김정래,박인규,강정진,손병기,Park, Jong-Jin,Choi, Gyoo-Seok,Kim, Jeong-Lae,Park, In-Kyoo,Kang, Jeong-Jin,Son, Byeong-Ki 한국인터넷방송통신학회 2014 한국인터넷방송통신학회 논문지 Vol.14 No.6

본 논문은 현대인이 받는 각종 스트레스와 압박 및 내적 갈등으로 인해 발생되는 분노의 관리를 위해 정신건강 관리용 모바일 헬스케어 앱을 개발한다. 분노의 작동 기전과 신체 질병과의 관계성에 대한 내용을 다루고 이를 효율적으로 관리, 해결하기 위한 정보를 제공하는 앱 컨텐츠를 개발하고 웹앱(Web App)으로 구현하였다. 앱을 사용하는 사용자에게 분노관리와 관련된 유용한 정보를 제공하고 사용하기 편리하도록 메뉴를 구성하였다. 구현된 앱은 분노와 관련된 정보, 신체 건강과의 연관성에 대한 정보, A형 성격이나 적대감 테스트, 스트레스 경향 테스트, 정신 생산성 진단 테스트(KMPI), 일지 쓰기, 분노 관리, 상담 등의 기능을 제공한다. In this paer, mobile healthcare App is developed for mental health management focused on anger management for modern people who are under constant stress and various inner conflicts. We describe mechanism of anger and relations between disease and anger, and constitute contents of App to provide information of anger management. And finally we implement Web App. We build menu of App to be convenient to users to use. Implemented App provides many useful functions like information of anger and body, various self-test including A-type test, hostility test, and KMPI etc., journaling, anger management and community.

Digital Modeling of a Time delayed Continuous-Time System

박종진,최규석,박인규,강정진,Park, Jong-Jin,Choi, Gyoo-Seok,Park, In-Ku,Kang, Jeong-Jin The Institute of Internet 2012 한국인터넷방송통신학회 논문지 Vol.12 No.1

Control Theory for continuous-time system has been well developed. Due to the development of computer technology, digital control scheme are employed in many areas. When delays are in control systems, it is hard to control the system efficiently. Delays by controller-to-actuator and sensor-to-controller deteriorate control performance and could possibly destabilize the overall system. In this paper, a new approximated discretization method and digital design for control systems with multiple state, input and output delays and a generalized bilinear transformation method with a tunable parameter are also provided, which can re-transform the integer time-delayed discrete-time model to its continuous-time model. Illustrative example is given to demonstrate the effectiveness of the developed method. 연속시간 시스템의 제어 이론은 잘 개발되어 왔다. 컴퓨터 기술의 발달로 인해 디지털 제어 기법이 여러 분야에 적용되어 왔다. 제어 시스템에 시간 지연이 있는 경우는 시스템을 효율적으로 제어하는 것이 어렵다. 제어기와 액츄에이터 그리고 센서와 제어기 간에 있는 지연은 제어 성능을 떨어뜨리고 전체 시스템을 불안정하게 할 수 있다. 본 논문에서는 다중의 상태, 입력 그리고 출력 지연을 가지는 제어 시스템을 위한 새로운 근사 이산화 방법과 디지털 설계 그리고 조정가능한 계수를 가지는 일반화된 쌍선형 변환 방법을 제안한다. 이 방법은 정수의 시간 지연을 가지는 이산 시간 모델을 동일한 연속 시간 모델로 다시 변환할 수 있다. 실제적인 예제를 통해 제안된 방법의 효율성을 증명한다.

스마트 폰을 이용한 모바일로봇의 리모트 주행제어 시스템

박종진,최규석,천창희,박인규,강정진,Park, Jong-Jin,Choi, Gyoo-Seok,Chun, Chang-Hee,Park, In-Ku,Kang, Jeong-Jin 한국인터넷방송통신학회 2011 한국인터넷방송통신학회 논문지 Vol.11 No.6

본 논문에서는 Zigbee 기반 무선센서네트웍과 레고 마인드스톰 NXT 모듈을 이용하여 이동로봇의 원격주행제어시스템을 개발하였다. 기존 회전센서(encoder)에 의한 이동로봇 위치제어의 오차 문제(미끄러짐 등)를 해결하고 좀 더 정확하게 이동로봇을 제어하기 위해 본 논문에서는 무선센서네트웍상의 초음파모듈을 사용하였다. 초음파의 문제점인 직진성과 협소한 감지범위의 단점을 극복하기 위해 이동로봇에 부착된 이동 노드를 360도 회전시킴으로써 4개의 고정 노드로부터 각각의 거리를 측정하여 삼각측량법에 의해 로봇의 정확한 위치를 추정하였다. 또한 이동로봇의 전면에 부착된 USB 웹 카메라를 사용하여 스마트폰으로 영상이 송신되도록 하였다. 그 결과 스마트폰을 통해 로봇의 위치와 이동로봇의 주변상황을 확인함으로써 이동 로봇을 정확하게 제어할 수 있었다. In this paper, using Zigbee-based wireless sensor networks and Lego MindStorms NXT robot, a remote monitoring and navigation system for mobile robot has been developed. Mobile robot can estimate its position using encoder values of its motor, but due to the existing friction and shortage of motor power etc., error occurs. To fix this problem and obtain more accurate position of mobile robot, a ultrasound module on wireless sensor networks has been used in this paper. To overcome disadvantages of ultrasound which include straightforwardness and narrow detection coverage, we rotate moving node attached to mobile robot by $360^{\circ}$ to measure each distance from four fixed nodes. Then location of mobile robot is estimated by triangulation using measured distance values. In addition, images are sent via a network using a USB Web camera to smart phone. On smart phones we can see location of robot, and images around places where robot navigates. And remote monitoring and navigation is possible by just clicking points at the map on smart phones.

Disciplinary Session 9 / Sport Biomechanics / Skill Analysis in Sport Biomechanics : 축구골 정면에서 좌측 모서리로 인스텝 슛시 임팩트 순간의 운동역학적 분석

박종진,오정환 ( Jong Jin Park,Jeung Whan Oh ) 한국체육학회 1998 국제스포츠과학 학술대회 Vol.1998 No.2

고온부재의 재질열화에 따른 응력부식균열 평가에 관한 연구

박종진,유호선,정세희,Park, Jong-Jin,Yu, Ho-Seon,Jeong, Se-Hui 대한기계학회 1996 大韓機械學會論文集A Vol.20 No.4

It has been reported that high temperature structural components represent the phenomenon of material degradation according to a long term service under high temperature and pressure. Especially, fossile power plant components using the fossil fuel and heavy oil are affected by dewpoint corrosion of $H_2SO_4$produced during a combustion. Therefore, the service materials subjected to high temperature and pressure may occur the stress corrosion cracking. The object of this paper is to investigate SCC susceptibility according to the material degradation of the high temperature structural materials in dewpoint corrosive environment-$H_2SO_4$.The obtained results are summarized as follows : 1) In case of secondary superheater tube, the fractograph of dimple is observed at the concentration of $H_2SO_4$-5%. When the concentration of $H_2SO_4$ is above 10%, the fracture mode is shifted from a transgranular fracture to an quasi-intergranular fracture according to the increment of concentration. 2) In the relationship between [$\Delta$DBTT]$_sp$ and SCC susceptibility, it is confirmed that the greater material degradation degree is, the higher SCC susceptibility is. In addition, it can be known that SP test is useful test method to evaluate SCC susceptibility for high temperature structural components. 3) When [$\Delta$DBTT]$_sp$ is above 17$17^{\circ}C$ the SCC fracture behavior is definitely observed with SCC susceptibility of above 0.4.

맥동연소식 온수기의 열전달

박종진,강건,이관수,박희용,Park, Jong-Jin,Kang, Kun,Lee, Kwan-Soo,Pak, Hi-Yong 대한기계학회 1988 대한기계학회논문집 Vol.12 No.6

A heat transfer model for a pulse combustion water heater is developed, and an associated computer simulation is conducted to determine the temperature distribution as well as heat transfer rate. Parametric studies are performed to examine the effects of the operating and design variables on the thermal performance and heat transfer rate. They are found to be influenced mainly by energy input rate, the amount of excess air, the volume of combustion chamber, and the diameter of flue tube. 본 연구에서는 맥동연소식 온수기를 제작하기에 앞서 전체장치의 열전달을 예 측 분석할 수 있는 에너지 방정식을 세우고, 이를 바탕으로 하여 온수기의 설계 및 운 전인자가 열전달과 온수기의 효율에 미치는 영향을 조사하고자 한다. 이를 위하여 온수기내 맥동유동을 평균유동으로 가정하였고, 열전달계수는 평균유동 열전달계수에 맥동유동으로 인한 열전달증가인자를 곱하여 사용하였다.이렇게 하더라도 이 연구 의 목적인 설계 및 운전인자가 열전달 및 효율에 미치는 영향을 파악하는 데에는 충분 한 결과를 얻을 수 있다고 판단한다

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.

베벨기어 페쇄단조의 유한요소해석

박종진,이정환,이영선,Park, Jong-Jin,Lee, Jung-Hwan,Lee, Young-Sun 대한기계학회 1996 大韓機械學會論文集A Vol.20 No.8

The rigid-plastic finite element analysis was performed for analysis of ofhot forging and cold sizing of a bevel gear. Two dimensional analysis was carried out to investigate the defect occurrence on vertical symmetric planes during hot forging and three dimensional analysis was to understand the filling behavior on horizontal planes during cold sizing. The involute curve of a tooth was approximated by a circle for convenience in the present analysis. In order to estimate the elastic deformation of the gear and dies during cold sizing, linear elastic finite element analysis was performed. Results of the analysis can be used to predict grain flows and strength distributions in the forged gear, and to design dies and an appropriate preform for the cold sizing.

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.