• 한국학교ㆍ지역보건교육학회지
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• 제14권1호
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• pp.37-47
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• 2013

Objectives: A descriptive correlational study was designed to examine the relationship of anger to psychosomatic symptoms. In addition, this study investigated the mediating effect of parental attachment in relation to anger and other variable. Methods: Data were collected from 112 subjects in grade 4 or 6, and descriptive statistics, Pearson correlation coefficient, and hierachical multiple regression were used with SPSS/PC 18.0 program to analyze the data. Results: There was a significantly positive effects between state-trait anger and psychosomatic symptoms. Father attachment negatively correlated state-trait anger and psychosomatic symptoms. Also, mother attachment negatively correlated state anger and psychosomatic symptoms. However, maternal attachment was not significantly associated with trait anger. Parental attachment had a significant mediating effect in relation to state-trait anger and psychosomatic symptoms. Conclusions: For the effective management of multi-cultural children's psychosomatic symptoms, programs including parental attachment increasing strategies should be established. These programs can increase parental attachment security which is mediator role between anger and psychosomatic symptoms.

• 대한의용생체공학회:의공학회지
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• 제24권6호
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• pp.481-486
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• 2003

본 논문에서는 의료 영상 분야의 국제 표준인 DICOM을 툴킷 형태로 구현한 소프트웨어에 대하여 기술한다. 기존의 툴킷들은 영상 관련 기능들을 별도로 구현해야 하거나 유닉스 운영체제를 기반으로 개발된 후에 윈도우즈 운영체제오 이식되거나 속도나 메모리 관리 측면이 배제되었거나 DICOM의 방대함에 기인하여 매우 복잡한 구조로 되어있는 단점을 가지고 있다. 제안된 툴킷은 기존 툴킷들의 단점을 보완하고 DICOM이 주로 사용되는 병원의 환경에 적합하도록 설계하였다. 즉, 윈도우 운영체제를 사용하는 일반 PC에서 대용량의 영상을 조회한 수 있도록 하였으며 다중 자업을 지원하여 자업 처리 속도 및 편리성을 증가시켰고 임상에서 필요한 대부분의 기능을 제공하며 객체 지향적 구조로 설계되어 사용자가 짧은 기 간 내에 개발 할 수 있도록 하였다. 실험 결과 제안된 툴킷을 이용하여 일반 PC 환경에서 CT 50장, MR 50장, CR 10장, DX 10장의 DICOM 영상을 12초 이내에 출력하며 소량의 물리적 메모리만을 소모하는 성능을 보였다.

• 농촌계획
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• 제13권1호
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• pp.73-84
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• 2007

The first theme of this study is to preserve and manage rural multi-functionality resource Information. This study is to suggest the method that can irradiate rural multi-functionality resource Information efficiently and constructively. GIS uses PDA and Tablet PC as an investigation tool and verifies the outcome of the development in the investigation system. This study enhanced the mobility function of PDA by installing recording system and camera to the PDA. Also, Using GPS has been ensured scientific precision and realism to the investigation. Direct input on spot can save time, cost and minimize human error by simplifying the investigation process. Database is composed of characters like scale, form, location, distance, resident's opinion and image of 37 resources. The survey system was applied in 170 villages and got a total of 12,270 resources data. Management system should be easy to input and output the surveyed information and to get reports in any kind of form ( i.e. final result can be produced as a map). By utilizing of the Rural Resource information system, the study made a simulation to compare the target areas before and after. Also, digitalized investigation system, minimized re-input and reprocessing of data and enabled to simplify and standardize the process than memorandum investigation. Data collected through digital system could offer people useful information by Web-GIS. It was need to specify practical way in decision-making and a way to measure the value of resources to align with the regional plan. Also, need to keep on developing statistical data and application program that can connect us to present the best solution to support regional planning. Therefore, quality of data is very important. Finally, it is very important to develop various programs to analyze space md rural resource by monitoring rural environment.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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• pp.149-152
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• 1998

Nowadays, GIS, as multi-discipline information system, is closely linked with GPS application in conjunction with GIS-T or Logistics GIS. With this R&D trend. CPS/GIS application system for AVL is newly developed in this study. This AVL is designed and implemented by using pure Java computing technology towards com ing Car-equipped wireless Internet PC age, and main features of Java are included at this system: Platform independence, Multi-thread processing, and Object-oriented paradigm. While, because core modules of this AVL are based on GIS spatial engine, unlike other commercial AVLs, large spatial database problem handling digital image/spatial information and attribute information and direct access problem of GIS data is easily dealt with. this system can directly access external database by using JDBC: MS Access for desktop version and Oracle for W/S version. Finally, it is thought that Java-based AVL, one of CPS/CIS applications, can be easily extended into other prospective GIS applications: Land surveyor supporting system, Flight tracking system, 3D facility management system with CPS, and so forth.

• 대기
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• 제15권1호
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• pp.35-46
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• 2005

Today, the outreach of National Meteorological Service such as PC cluster based Numerical Weather Prediction (NWP) technique is vigorous in the world wide. In this regard, WMO (World Meteorological Organization) asked KMA (Korea Meteorological Administration) to formulate a regional project, which cover most of RA II members, using similar technical system with KMA's. In that sense, Meteorological Research Institute (METRI) in KMA developed Mongolian NWP System (MNWPS) based on PC cluster and transferred the technology to Weather Service Center in Mongolia. The hybrid parallel algorithm and channel bonding technique were adopted to cut cost and showed 41% faster performance than single MPI (Message Passing Interface) approach. The cluster technique of Beowulf type was also adopted for convenient management and saving resources. The Linux based free operating system provide very cost effective solution for operating multi-nodes. Additionally, the GNU software provide many tools, utilities and applications for construction and management of a cluster. A flash flood event happened in Mongolia (2 September 2003) was selected for test run, and MNWPS successfully simulated the event with initial and boundary condition from Global Data Assimilation and Prediction System (GDAPS) of KMA. Now, the cluster based NWP System in Mongolia has been operated for local prediction around the region and provided various auxiliary charts.

• 스마트미디어저널
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• 제6권4호
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• pp.65-71
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• 2017

본 논문은 국내 전 지역에서 동시에 비행 중인 다수의 소형 무인기 위치정보를 신속하고 안정적으로 수집하기 위해서, LTE 기반의 소형 무인기 관제시스템을 구축을 위한 설계 방안을 제시하였다. 특히, 다수의 소형 무인기 운용기관이나 감독기관에서 비행 중인 전체 소형 무인기의 위치를 동시 모니터링 할 수 있도록, 주요 요구사항을 네트워크(N/W), 하드웨어(H/W), 소프트웨어(S/W), 데이터베이스(DB), 개발 아키텍처, 비즈니스 니즈로 나누어 도출하였다. 이러한 요구사항을 충족시키기 위해, 소형무인기 실시간 위치추적 시스템의 설계 요건 측면에서 N/W, H/W, S/W, DB설계, 아키텍처 설계 방안을 제시하였다. 시스템 설계 시 소형 무인기 다자간 관제하기 효과적으로 하기 위해 단위 시스템의 기능과 역할에 따라 Front-end Service 영역과 Back-end Service 영역으로 나누어 아키텍처를 설계하였다. 소형 무인기의 위치와 상태를 파악하고 제어하는 Front-end Service 영역은 Client PC 방식을 적용함으로써, TCP/IP 네트워크를 통해서 N개 까지 확장이 가능한 설계 부분에 대해 연구하였다.

• 한국안전학회지
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• 제30권3호
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• pp.20-25
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• 2015

It is predicted the mass retirement of the post-war generation and the lack of young people according to reduces the recruitment. Therefore, industry fields are concerned by the low level of occupational safety and health from issued problem in a variety of industries; the charge of expanding business range/multi-functional, black box of technology, difficulty of systematic training, relative decrease in the skill of workers, loss of know-how in the field of information followed restricted site information. In response to these problems, it is necessary to establish the long-termly and actively based on for the adoption of a safety and health management techniques utilizing IT, which is digital assistant(tablet PC, PDA, etc.), RFID/USN/ICT, database systems, and etc. In this study, we developed and evaluated a worker's safety sensing apparatus using smart phone. The apparatus may be useful to prevent accidents in the construction industry as well as confined space work.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1998년도 추계학술대회
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• pp.193-194
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• 1998

This paper describes a multi-functional EEG (electroencephalogram) software. The software manages the patient's EEG data systematically and analyzes the signal and display the parameters on a PC monitor in real-time. Since the software provides various parameters simultaneously, user can observe patients multilaterally. Reference patterns of CSA and DSA can be captured and displayed on top of the monitor. And user can mark events of surgical operation or patient's conditions, so it is possible to jump to the points of events directly, when reviewing the recorded file afterwards. Many convenient functions are equipped and these are operated by mouse clicks.

• 공학기술논문지
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• 제5권4호
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• pp.349-353
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• 2012

Recently, Mobile multimedia equipments as smart phone and tablet pc requirement is increasing and this market is also being expanded. These mobile equipments require large multi-media function, so more power consumption is required. For these reasons, the needs of power management IC as switching type dc-dc converter and linear regulator have increased. DC-DC buck converter become more important in power management IC because the operating voltage of VLSI system is very low comparing to lithium-ion battery voltage. There are many people to be concerned about digital DC-DC converter without using external passive device recently. Digital controlled DC-DC converter is essential in mobile application to various external circumstance. This paper proposes the DC-DC Buck Converter using the AVR RISC 8-bit micro-processor control. The designed converter receives the input DC 18-30 [V] and the output voltage of DC-DC Converter changes by the feedback circuit using the A/D conversion function. Duty ratio is adjusted to maintain a constant output voltage 12 [V]. Proposed converter using the micro-processor control was compared to a typical boost converter. As a result, the current loss in the proposed converter was reduced about 10.7%. Input voltage and output voltage can be displayed on the LCD display to see the status of the operation.

• 전자공학회논문지SC
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• 제39권1호
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• pp.7-15
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• 2002

원거리에 분산되어 있는 다수의 양식시설을 마이크로프로세서를 이용하여 원격으로 환경상태를 감시하고 제어하기 위한 알고리즘을 구현하였다. 각각의 시설에서 검출한 환경데이터를 하나의 프로세서에 수집한 후, 전화선을 이용하여 FSK 방식으로 원거리의 관리자에게 전송하고 데이터를 수신하여 표시기에 나타내므로써 시설들의 환경상태를 알 수 있다. 또한 관리자는 시설의 환경을 조절하는 제어기의 작동데이터를 설정하여 전송하면 해당시설로 전달되어 원격으로 환경을 제어할 수 있다. 다수의 시설에서 검출된 환경데이터를 최소의 회선을 사용하여 한곳으로 취득하기 위한 방법으로 멀티-프로세싱 기법을 적용하였고, 취득한 데이터와 제어용 데이터의 상호교환을 위한 알고리즘을 연구하였다. 먼저 프로세서 상호간의 통신시？스를 설계하여 데이터의 교환에 대한 통신알고리즘을 실험적으로 구현하였으며, 전화회선의 통과주파수 대역에서 전송특성의 검토로 설계한 FSK 변복조기의 성능을 분석하였다. 또한 대량의 시설을 관리하기 위하여 PC를 활용한 DB구축에 대한 알고리즘도 제시하였다. 본 연구의 목적은 최소의 비용으로 쉽게 사용할 수 있는 방법의 구현에 있으며, 시설의 관리에 소요되는 노동력의 감소와 환경상태의 악화에 의한 만약의 사태를 예방할 수 있는 경보를 제공하는 것으로 양식산업을 보다 과학적이고 기술적인 방향으로 개선하는데 있다.