• 한국정보전자통신기술학회논문지
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• 제1권1호
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• pp.13-19
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• 2008

본 연구를 통해 Maya SDK와 API, MEL 기술을 이용하여 Backup save가 가능한 plug-in 개발과 Maya 프로그램 안에 구현해 보고 각종 응용 프로그램 활용 가능성을 고찰하고자한다. 현재 활용되어지고 있는 Maya의 다양한 plug-in들 중에서 개발자들의 고충이라 여겨지는 파일관리와 저장시의 보관의 어려움에 대해 분석하여 Backup save이 가능한 다양한 방법을 파악하고, Backup save plug-in을 통해 중복파일와 기존파일의 불의의 수정을 미연에 방지해 개발자의 능률을 높이고자하는데 목적을 두고 그래픽 개발자 측면에서 백업저장이 Maya 프로그램 활용능력과 데이터 유지 보수를 향상시킬 수 있는 가능성을 고찰 하였다. Maya 소프트웨어에서 백업저장 기능으로 구현된 plug-in 기반 솔루션은 다양한 응용 소프트웨어에서도 응용될 수 있다고 판단된다.

• 인간식물환경학회지
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• 제24권5호
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• pp.499-507
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• 2021

Background and objective: This study was carried out to develop an effective technique for raising seedlings of Veronica pyrethrina Nakai, a native plant species in the Korean Peninsula, in plug trays. Methods: To investigate the optimum plug cell size and sowing media, we sowed seed in to plug trays with 34, 21, and 10 mL cells and filled with a commercial horticultural substrate and mixtures of peatmoss and perlite in 1:1, 3:1, and 4:1 ratios. Fertilization levels were set at 0, 500, 1000 and 2000 mg·L^-1. Results: Plug cell size did not significantly influence the seedling growth of V. pyrethrina. By substrate type, the growth rate was highest in the horticultural substrate, followed by 4:1, 3:1, and 1:1. Growth by fertilization level was higher in all fertilized treatment groups than in the control group, and there was no difference among 500, 1000, and 2000 mg·L^-1. Conclusion: The results of this study proved that it is most suitable for raising seedlings of V. pyrethrina to sow the seeds in a 10 mL cell plug tray filled with horticultural substrates, and apply fertilizers with less than 500 mg·L^-1 concentration.

• 대한임베디드공학회논문지
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• 제11권5호
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• pp.287-298
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• 2016

This paper proposes an effective smart plug system capable of monitoring power, cutting off standby power and overload current. The key design concept is focused on measurement accuracy, self power consumption and controlling via smart phone application. The system is composed of several plugs and a hub, and adopts a star-topology-styled TDMA wireless protocol for communication between plug and hub. The test result shows that the implemented smart plug system meets K10026 regulation and is worth in electrical safety, energy saving, easy living.

• 한국철도학회논문집
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• 제4권2호
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• pp.55-61
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• 2001

Since the plug type passenger door has two modes of motion, a power transmission unit must be capable of plug-in or plug-out mode, and sliding mode. Complex planetary gear train is proposed, which is composed of two 2K-H, I type planetary gear units. For the proposed complex planetary gear train, ranges of addendum modification coefficients which would not lead to interferences are analyzed, and optimal addendum modification coefficients among these ranges which generate the maximum efficiency are presented. Based on the results of analysis on interferences, efficiencies and torque ratios, the specifications for the complex planetary gear train were determined. It has been shown by tests of the complex planetary gear train manufactured that the gear train worked well with good agreements of analysis.

• 한국추진공학회지
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• 제23권2호
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• pp.53-59
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• 2019

연소실 내부의 연료 분포를 실시간으로 측정하는 목적을 가진 소형화 장비인 LIBS plug가 개발 및 제작 되었다. LIBS plug는 레이저 유도 플라즈마 분광분석법 (Laser-induced breakdown spectroscopy : LIBS)를 응용한 장비로, 기존의 LIBS 결과인 전체 스펙트럼에서 당량비와 깊게 관여하는 두 개의 파장(H: 656.3 nm, O: 777 nm)만을 선정하여 측정할 수 있도록 하였다. 렌즈와 밴드패스 필터, 포토다이오드로 구성된 본 장비로 수집한 결과에 대한 분석이 이루어졌으며, 액체(가솔린)와 기체(LPG) 연료와 공기의 혼합물에서의 당량비 측정이 이루어졌다.

• 소프트웨어공학소사이어티 논문지
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• 제24권2호
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• pp.67-75
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• 2011

우리는 소프트웨어 제품라인 개발 방법론인 FORM을 지원하기 위해 과거 AWT기반의 자바 어플리케이션으로 개발된 ASADAL의 동작 속도의 개선, 기능 추가, 그리고 좀 더 친숙한 사용자 인터페이스로의 개선이 필요했기 때문에 이클립스 플랫폼 기반의 플러그-인 어플리케이션으로 리엔지니어링을 진행해야 했다. 본 논문에서는 새로운 플러그-인 어플리케이션을 최소의 노력으로 개발하고 좀 더 빨리 배포하기 위해서 기 개발된 어플리케이션의 많은 부분을 재사용 할 수 있도록 리엔지니어링 과정에서 고려해야 할 세 가지 요소인 기 개발된 어플리케이션의 사용자 인터페이스 재사용 범위, 어플리케이션을 구성할 플러그-인들의 구성, 그리고 이후의 손쉬운 확장 및 기능 대체를 위한 플러그-인들 사이의 결합에 대해서 언급하고 각 요소에 대해서 사용한 방법 및 지침들을 소개한다. 그리고 ASADAL의 휘처모델 편집기와 행위모델 편집기의 리엔지니어링 사례를 들어 제시한 지침을 적용하여 개발한 플러그-인을 소개한다.

• 한국자동차공학회논문집
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• 제5권1호
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• pp.27-37
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• 1997

Internal combustion engine is the main source of environmental pollutants and therefore better technology is required to reduce harmful elements from the exhaust gases all over the world. Especially, harmful elements from the exhaust gases are caused by incomplete combustion of mixture inside the engine cylinder and this abnormal combustion like misfire or partial burning is the direct cause of the air pollution and engine performance degradation. the object of this research is to detect abnormal combustion like misfire and to keep the engine performance in the optimal operating state. Development of a new system therefore could be applied to a real car. To realize this, the spark-plug in a conventional ignition system is used as a misfire detection sensor and breakdown voltage is analyzed. In this research, bias voltage(about 3kV) was applied to the electrodes of spark-plug and breakdown voltage signal is obtained. This breakdown voltage signal is analyzed and found that a combustion phenomena in engine cylinder has close relationship with harmonic coefficient K which was introduced in this research. Newly developed combustion diagnostic method( breakdown voltage signal analysis) from this research can be used for the combustion diagnostic and combustion control system in an real car.

• 한국정보통신학회논문지
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• 제26권2호
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• pp.329-332
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• 2022

Since IoT devices include various sensors and drivers, application programmers need to understand the structure and characteristics of sensors and actuators. If the manufacturer provides the driver of the sensor or actuator, IoT development can be efficiently carried out, which is called the Plug & Play technique. What matters is that the technique proposed by this research team in the past are not suitable for Arduino or Raspberry-Pi, which are recently used. In this paper, we propose a USB sensor device that can be mounted on a Raspberry-Pi. When the device is plugged into the Raspberry-Pi, the built-in driver is transmitted and played. The configuration of the USB sensor device was presented, and considerations for chip selection for processing sensors and drivers were presented.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1997년도 동계 학술대회 논문집
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• pp.392-400
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• 1997

This study was conducted to develope the machine vision system of a robotic transplanter for bedding plants. Specific objectives of this study were 1) to get coordinates of the healthy seedlings except empty cells and bad seedlings in high-density plug tray, and 2) to get the angle of the leaves of the healthy seedlings to avoid damage to the seedlings by gripper. The results of this study are summarized as follows. (1) The machine vision system of a robotic transplanter was developed. (2) The success rates of detecting empty cell and bad seedlings in 72-cell and 128-cell plug trays were 98.8% and 94.9% respectively. (3) The success rates of calculating the angle of leaves in 72-cell and 128-cell plug trays were 93.5% and 91.0% respectively.

• 한국군사과학기술학회지
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• 제24권3호
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• pp.328-338
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• 2021

A study on common modular design based on open standards to reduce the life cycle cost of ground weapon system is underway. Since the ground weapon system includes major mission equipment such as fire control system, it is essential to apply the concept of fault tolerance through automatic reconfiguration and blocking unspecified equipment through connectivity control. However, it is difficult to generalize due to the difference in operating characteristics for each system. In this paper, we propose a plug-and-play framework, which includes plug-and-play architecture and mechanism. The proposed method can be used in common by the application of each component as it is divided into a common service layer. In addition, the proposed connectivity control and autonomous reconfiguration method facilitates reflection of operating characteristics for each system. We constructed a verification environment that can simulate ground weapon systems and components, and verified that the proposed framework works through scenario-based functional tests.