• 한국의학물리학회지:의학물리
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• 제30권2호
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• pp.59-63
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• 2019

Purpose: To manage radiation measurement equipment, a web-based management program has been developed in this study. Materials and Methods: This program is based on a web service and Java Server Pages (JSP) and employs compatibility and accessibility. Results: The first step in the workflow has been designed to create accounts for each user or organization and to log in. The program consists of two parts: fields for listed instruments, and measurement information. The instruments for measuring radiation listed in this program are as follows: ionization chambers, survey meters, thermometers, barometers, electrometers, and phantoms. Instrument properties can be put in the recording fields and browsing for associated instruments can be performed. The main part of the program is the cross-calibration for each ion chamber. For instance, the ionization chamber to be used as a relative dosimeter can be registered by cross-calibration data with a reference chamber calibrated by an accredited laboratory. This program supports methods using the central axis transfer theory for cross-calibration for the ionization chambers. The reference and field ionization chambers were placed in a solid water phantom along the beam central axis at two different depths, and then the positions were switched. Each measured value was used for calculating the cross-calibration factor. Conclusions: Because many instruments are used and managed in radiation oncology departments, systematic, traceable recording is very important. The web-based program developed in this study is expected to be used effectively in the maintenance of radiation measurement instruments.

• 한국지하수토양환경학회지:지하수토양환경
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• 제22권6호
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• pp.94-103
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• 2017

Surface soil is one of the most important resources that have many functions for human needs such as conservation of water resource, purification of contaminated materials, and productivity of food or energy. However, the surface soil is a limited resource that cannot be recovered readily for a long time once it is lost by erosion. In Korea, the Ministry of Environment enacted the notification on the investigation of surface soil erosion and corresponding countermeasures. As the results, database of soil quality assess criteria (biomass, groundwater recharge, habitat, carbon storage, buffer, and soil loss) was established, and the web-based system that can evaluate surface soil conditions was developed. However, non-experts have difficulties in using the system because the system requires in-depth knowledge about soil qualities. In this study, the Web Geographic Information System (GIS) watershed-based surface soil information system was developed to improve usability of the system and accessibility of soil quaility database. The system provides the current condition of surface soil characteristics and GIS-based soil data at selected locations. The users are able to download soil quality data in different districts, watersheds, and special regions allocated by TauDEM module. The system developed in this study would valuable surface soil information for studies of soil quality and its environmental effects, and thereby contributing to establishing more appropriate and robust soil conservation laws.

• 임상간호연구
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• 제28권2호
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• pp.112-121
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• 2022

Purpose: This study aims to identify the effects of mobile web-based COVID-19 isolation hospitalization management training on patient's uncertainty, anxiety, and nursing education satisfaction. Methods: Patients hospitalized with COVID-19 isolation rooms from August to October 2021, in Medical Center B which is an infectious disease dedicated hospital located in metropolitan city B were included. The total number of subjects was 142, of which 71 were the experimental group and 71 the control group. As an experimental treatment, a total of 5 minutes and 35 seconds of mobile web-based education were provided to the experimental group three times, including the day of, the first day of, and the second day of hospitalization. Existing training conducted on the control group was provided by the nurses in charge of the ward through oral explanation using printed materials. The data were analysed using the IBM SPSS/WIN 26.0 program. Results: Significant differences were observed between the two groups in pre-and post-assessment of uncertainty scores (t=-22.92, p<.001), anxiety scores (t=-15.03, p<.001) and nursing education satisfaction score (t=11.61, p<.001). Conclusion: As a result of the above, mobile web-based education can be used as an effective educational medium in nursing practice to improve the work efficiency and quality of nursing care and contribute to improving the patient's educational satisfaction.

• 컴퓨터교육학회논문지
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• 제17권3호
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• pp.101-112
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• 2014

정보통신기술의 발전으로 교육현장에서 웹을 통해 무료로 교육 자료를 공개하고 활용하는 서비스 사례들이 늘어나고 있다. 그러나 이러한 서비스를 통해 제공되는 자료들은 대부분 완성된 형태로 제공되고 있어 교수자가 교육 목적이나 내용에 따라 자료를 개발하거나 수정해서 사용하기 어려운 실정이다. 이에 본 연구는 실사용자인 교사가 기존의 교육용 콘텐츠 개발 툴을 사용하여 콘텐츠를 개발해봄으로써 교사 입장에서의 개발 툴에 대한 요구사항 및 필요기능을 도출하고자 하였다. 그 결과, 툴에 대한 요구사항으로는 직관적 인터페이스 환경, 다양한 멀티미디어 자료 지원, 산출물 버전의 다양화 등 10가지가 도출되었으며, 필요 기능으로는 외부자원의 연결, 포맷 자동 변환 기능, 기존 문서의 사용 및 편집, 학습자 정답 작성, 숨기기 기능 등 13가지 기능이 제시되었다.

• 전기화학회지
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• 제16권3호
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• pp.157-161
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• 2013

다공성 $LiMn_{0.6}Fe_{0.4}PO_4$ (LMFP)를 졸-겔법을 이용하여 합성하였고, 원료물질을 양론비로 혼합한 후 혼합물을 $600^{\circ}C$에서 10시간 동안 가열하여 입자 표면 전체에 전도성 탄소물질이 균일하게 형성된 LMFP을 제조하였다. LMFP의 결정구조는 리트펠트법에 의해 조사하였고, 표면구조와 기공특성은 주사전자현미경, 투과전자현미경, BET로 분석하였다. 제조된 LMFP는 표면적이 크고, 입자 표면에는 웹(web) 형태의 다공성 탄소층이 균일하게 형성되어 있는 것을 확인하였다. 상온에서 LMFP를 양극으로 사용하여 0.1 C의 전류밀도에서 초기방전용량은 152 mAh/g, 에너지밀도는 570 Wh/kg로 높았고 사이클 성능도 장기적으로 안정적이었다. 졸-겔법에 의해 제조된 LMFP는 높은 기공도와 균일한 탄소코팅에 의한 시너지효과로 이온확산이 용이하여 우수한 전기화학적 특성을 나타내었다.

• Applied Microscopy
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• 제18권2호
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• pp.91-101
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• 1988

The ultrastructure of the sac and tail portion of the large ampullate gland and production of the silk materials in the orb web spider, Nephila clavata L. Koch, are studied with electron microscope. Large ampullate glands, the largest glands among the seven kinds of silk glands in this species, are composed of three parts which are the excretory duct, the storage sac and the convoluted tail. The wall of the sac is composed of a single layer of columnar epithelial cells. In the cytoplasm of these cells several kinds of the secretory granules, which are commonly associated with the rough endoplasmic reticula and had characteristic crystalloid, are seen. According to the morphology and internal textures of these granules, the sac portion is subdivided into proximal(connected with the convoluted tail) and distal(connected with excretory duct) portion. Between these two portions, the proximal portion is longer than the distal by four times. Silk materials, being synthesized to the shape of secretory granules, within the glandular epithelial cell of the tail portion are released to the inner cavity by the mechanism of the eccrine secretion. These secretory granules are originated from the rough endoplasmic reticula of the glandular epithelial cells, whereas no Golgi complexes has been found in any of the cells which have been examined.

• 정보관리연구
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• 제33권4호
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• pp.85-105
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• 2002

이 연구의 목적은 디지털 도서관에서 지식조직 시스템을 사용함으로써 전통적인 전거 파일의 역할을 확대하여 활용하는 사례를 살펴보는 것이다. 지식조직 시스템은 정보를 조직하고 지식경영을 조장하는 모든 유형의 체계로서 디지털 도서관의 핵심적 요소 중의 하나이다. 다양한 지식조직 시스템은 웹에서 목록과 디지털 자원 사이의 링크를 제공하고 이용자의 정보요구와 자원 사이의 다리 역할을 수행하면서 디지털 콜렉션으로부터 상관된 아이템의 검색을 지원하도록 콘텐츠를 조직한다. 지식조직 시스템이 코드를 전문으로, 객체를 기술 레코드로, 그리고 물리적 객체를 소재와 실물정보로 링크시키기 위하여 어떻게 사용될 수 있는가를 서술하였다.

• 한국문헌정보학회지
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• 제33권1호
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• pp.113-128
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• 1999

인쇄물의 색인과 초록은 통제어나 시소러스를 이용하여 합의된 방식으로 작성되지만, 웹 정보자원의 색인과 초록은 인간의 작업을 거치지 않고 자동으로 작성된다. 웹 환경에서의 색인과 초록은 인쇄물의 색인${\cdot}$초록과 비교하여 어떠한 과정을 거치며, 어떠한 요소들을 포함하는가에 대한 연구는 매우 의미 있는 일이라고 본다. 본 연구에서는 휑 정보자원의 수집, 색인 저장, 검색의 과정을 살펴보았고, 6개의 웹 검색 엔진을 통하여 색인과 초록작성에 영향을 미칠 수 있는 17개의 색인 요소와 11개의 초록 요소 그리고 2개의 메타 요소를 조사하였다. 전반적인 웹 정보자원의 색인과 초록에 대한 경향과 전망에 대해서도 살펴보았다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.267-268
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• 2023

Unmanned patrol robots are currently being developed for autonomous data survey in construction sites. As the amount of data acquired by robots increases, it is important to utilize proper metadata and system to manage data flow. In this study, we developed three materials, metadata design, robot system and web system, in the purpose of automating construction site data survey using unmanned patrol robots. The metadata was mainly designed to represent when and where raw data was acquired. To identify the location of data acquired, localization data from SLAM algorithm was converted to suit the construction drawings. The robot system and web system were developed to generate, store and parse the raw data and metadata automatically. The materials developed in this study was adopted to Boston Dynamics SPOT, a quadruped robot. Autonomous data survey of 360-picture and environment sensor was tested in two construction sites and the robot worked as intended. As a further study, development on the autonomous data survey to improve the convenience and productivity will be continued.

• 한국의류학회지
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• 제34권11호
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• pp.1767-1778
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• 2010

This study investigates applying $TiO_2$ (titanium dioxide) nanoparticles to polypropylene nonwoven fabrics via electrospinning for the development of UV-protective materials. To fabricate uniform nanocomposite fibers, three types of $TiO_2$ nanoparticles were applied: powder, colloid, and $TiO_2$ coated polymer pellets. $TiO_2$/polyurethane (PU) and $TiO_2$/poly(vinyl alcohol) (PVA) nanocomposite fibers were electrospun and the morphology was examined using a field-emission scanning electron microscope and a transmission electron microscope. Layered fabric systems with electrospun $TiO_2$ nanocomposite fiber webs were developed at various concentrations of $TiO_2$ in a range of the web area density. The effects of $TiO_2$ concentration and web area density on UV-protective properties were examined. When $TiO_2$ colloid was added into a PVA polymer solution, uniform nanocomposite fiber webs in which $TiO_2$ particles were evenly dispersed were produced. Water-soluble PVA nanofiber webs were given a heat treatment to stabilize the electrospun PVA fibrous structure against dissolution in water. $TiO_2$/PVA nanoeomposite fiber webs with 2wt% $TiO_2$ and 3.0g/$m^2$ web area density exhibited an ultraviolet protection factor of greater than 50, indicating excellent UV protection.