• International journal of advanced smart convergence
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• 제6권1호
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• pp.32-38
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• 2017

In Korea, the act for promoting use of the public data has been enforced since 2013. The Key Government 3.0 Strategy was established for providing the public data as an obligation of public authorities for users to use them free of charge. The aim of open public data and using them targeted by the government is creation of a solution for vitalizing the economy by using the public data. However, the reason for low usability and tangible outcomes despite unlimited provision of open government data is as follows. That is, it is essential to address the issue of difficult software technology required to access public data for using the data. However, with the open API method currently provided, the development procedure is not easy even for IT students or specialized software developers. Therefore, strategies for each step ideal for the level of developers are required to vitalize applications based on the public data and developed by ordinary users. Two strategic methods can be used for facilitating the use of public data and applications developed by ordinary users suggested in this paper on the basis of the public data portal organized by the Ministry of the Interior and provided to all ordinary users. That is, they are applications developed in the web browser environment and those developed in the PC environment. They allow ordinary users to develop and distribute applications based on the public data to contribute to enforcing the policy for facilitating the use of public data of the government just with basic training and basic knowledge from the training without using program coding knowledge of open API which requires the knowledge of development professionals.

• International Journal of Computer Science & Network Security
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• 제22권5호
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• pp.225-233
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• 2022

Due to the large number of documents that are important to people and many of their requests from time to time to perform an essential official procedure, this requires a practical arrangement and organization for them. When necessary, many people struggle with effectively arranging official documents that enable display, which takes a lot of time and effort. Also, no mobile apps specialize in professionally preserving essential electronic records and displaying them when needed. Dataset consisting of 10,841 rows and 13 columns was analyzed using Anaconda, Python, and Mito Data Science new tool obtained from Google Play. The research was conducted using the quantitative descriptive approach. The presented solution is a model specialized in saving essential documents, categorizing according to the user's desire, and displaying them when needed. It is possible to send in an image or a pdf file. Aside from identifying file kinds like PDFs and pictures, the model also looks for and verifies specific file extensions. The file extension and its properties are checked before sharing or saving it by applying the similarity algorithm (Levenshtein). Our method effectively and efficiently facilitated the search process, saving the user time and effort. In conclusion, such an application is not available, which facilitates the process of classifying documents effectively and displaying them quickly and easily for people for printing or sending to some official procedures, and it is considered one of the applications that greatly help in preserving time, effort, and money for people.

• Korea-Australia Rheology Journal
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• 제12권3_4호
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• pp.175-179
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• 2000

Rheological properties of chitosan solutions were investigated as a function of polymer concentration. The viscosity curves for chitosan solutions consisted of two distinct viscosity regions, the Newtonian zero-shear viscosity (η$_{0}$) region and the shear rate dependent apparent viscosity (η$_{app}$) region. The shear rate dependence of viscosity was more clearly observed at higher chitosan concentrations. The critical coil overlap parameter (C＊〔η〕) was determined to be approximately 3.2 from a plot of zero-shear specific viscosity η$_{sp,0}$ vs coil overlap parameter (C〔η〕), which was lower than C〔η〕4.0 reported for other random coil polysaccharides. It was also found that the slope of η$_{sp,0}$ vs C〔η〕 was 3.9 at concentrated C〔η〕>C＊〔η〕domain, while 1.2 at dilute C〔η〕$_{0}$ ${\gamma}$/${\gamma}$$_{0.8}$ relation.ion.n.n.

• International Journal of Advanced Culture Technology
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• 제8권3호
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• pp.325-333
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• 2020

In the past, eating outside was usually the purpose of eating. However, it has recently expanded into a restaurant culture market. In particular, a dessert culture is being established where people can talk and enjoy. Each consumer has a different tendency to buy chocolate such as health, taste, and atmosphere. Therefore, it is time to recommend chocolate according to consumers' tendency to eat out. In this paper, we propose a chocolate recommendation application based on the tendency to eat out using data on social networks. To collect keyword-based chocolate information, Textom is used as a text mining big data analysis solution.Text mining analysis and related topics are extracted and modeled. Because to shorten the time to recommend chocolate to users. In addition, research on the propensity of eating out is based on prior research. Finally, it implements hybrid app base.

• Archives of Pharmacal Research
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• 제19권2호
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• pp.100-105
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• 1996

Polyethylene glycols (PEGs; 400, 600, and 1000) were used to study the molecular weight (MW) permeability dependence in the rat ileal mucosa. Absorption of the PEGs was measured by following their recirculation perfusion over a 3 hr collection period. HPLC methods were used to separate and quantitate the individual oligomers present in the solution of PEGs mixtures (MW range 330 to 1 1 22 D). In the range studied, a distinct molecular weight cutoff was not identified. Corrected for the length of ileum used in the study, over the molecular weight range 330 to 1122 D, the apparent permeability $(P_{app)$ of PEG ranged from $3.2\pm0.06\times10_{-5} cm/sec(mean\pmSEM, n=7)\; to\; 0.1\pm0.02\times10^{-5} cm/sec.$ Also, it was observed that the apparent permeability was inversely proportional to approximately $MW^{2.4}$.

• 한국비블리아학회지
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• 제32권2호
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• pp.49-67
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• 2021

학교도서관에서 도서관 목록 검색 및 독서교육종합지원시스템에 접근할 수 있는 모바일 웹 서비스가 제공되고 있지만, 이용자의 요구를 반영하고 모바일기기의 특성을 고려한 서비스를 제공하지는 못하고 있다. 이에 본 연구는 학교도서관 이용자 요구에 맞는 학교도서관 모바일 앱 서비스의 내용과 방안을 모색하고자 문헌연구, 학교도서관 모바일 웹 서비스 현황 분석, 학생과 교사의 모바일 서비스 사용자 경험 설문조사를 실시하였다. 설문조사를 바탕으로 학교도서관 DLS 모바일 서비스의 내용구성 및 설계 방안을 마련하였다. 우선, 단계를 4단계에서 3단계로 축소하였다. 1단계에서는 회원가입 시 화면 잘림 오류 개선, 접근성을 높이기 위해 다양한 로그인 플랫폼을 추가하고, 2단계에서는 통합검색 및 상세검색, 이용교육 및 독서교육 자료 제공, 독후활동, 소속 학교도서관 이용안내와 공지사항, 상호대차, 전자책 등과 같이 주로 사용되는 메뉴를 제공하며, 3단계에서는 소장자료 검색결과 상세화면 표시를 중심으로 예약 등의 관련 기능을 제공하도록 제안하였다. 본 연구는 학교도서관을 위한 모바일 앱 서비스 개발에 활용될 수 있을 뿐만 아니라 현행 모바일 웹 서비스의 변경 시에도 적용할 수 있을 것이다.

• 환경위생공학
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• 제6권2호
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• pp.89-108
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• 1991

Organophosphorus pesticide residues such as Diazinon, Fenitrothion and EPN in apple and effect of storage peeling and washing on removal of the residues from apple soaked in 3 kinds of pesticides solutions for 20 seconds were studed with gas chromatography-nitrogen phosphorus detecter(GC-NPD). Result obtained are as follows : 1) Average concentrations of DiaEinon, Fenitrothion, and EPN detected in apple of control group were 0.022, 0.007 and 0.008 ppm respectively. 2) Decreasing rates of Diazinon on 7 th, 14 th, 21 st, 28 th, and 35 th day after soaking apple on the pesticide solution were 41.3% , 68.6% , 87.0%, 96.9% and 99.5% respectively. In case of Fenitrothion were 46.9%, 66.3%, 84.9%, 93.2% and 97.3% and EPN were 45.7 %, 76.2%, 85.4%, 95.7% and 99.4% respectively. 3) The removal rate of Diazinon, Fenitrothion and EPN by washing with water alone were 93.7%, 70.6% and 51.5% respectively, and 97.1% , 78.4% ailed 76.5% by washing with 0.2% detergent solution respectively. The results obtained in this study have show that 3 kinds of pesticides detected in app- les were below the Korean standard for residual pesticides and pesticides contaminated in apples were decreased in considerable degree by washing with water and 2% detergent solution and removed almost completely after storage for 35 days (5 weeks). Therefore, it would be concluded that washing and peeling will be the most effective way for safely because more than 90% of pesticide exist in peel.

• 한국IT서비스학회지
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• 제15권3호
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• pp.195-209
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• 2016

IoT (Internet of Things) is a collective term referring to application services that provide information through sensors/devices connected to the internet. The real world application of IoT is expanding fast along with growing number of sensors/devices. However, since IoT application relies on vertical combination of sensors/devices networks, information sharing within IoT services remains unresolved challenge. Consequently, IoT sensors/devices demand high construction and maintenance costs, rendering the creation of new IoT services potentially expensive. One solution is to launch an IoT open market for information sharing similar to that of App Store for smart-phones. Doing so will efficiently allow novel IoT services to emerge across various industries, because developers can purchase licenses to access IoT resources directly via an open market. Sharing IoT resource information through an open market will create an echo-system conducive for easy utilization of resources and communication between IoT service providers, resource owners, and developers. This paper proposes the new business model of IoT open market for information sharing, and the requirements for ensuring security and standardization of open markets.

• 한국대기환경학회지
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• 제21권6호
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• pp.605-612
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• 2005

In this study, the possible use of HMDA (Hexamethylenediamine) as additive to enhance reaction between $CO_{2}$ and AMP (2-amino-2-methyl-1-propanol) which has higher absorption capacity than that of MEA (Monoethanolamine) was investigated. Also, the absorption capacity for $CO_{2}$ was compared with addition of HMDA, piperazine or MDEA (N-methyldiethanolamine) into $30\;wt\%$ AMP at $40^{circ}C$ and $CO_{2}$ partial pressure ranging from 0.5 to 120 kPa. Apparent rate constant ($K_{app}$) and absorption capacity with the addition of $5\∼20\;wt\%$ HMDA into AMP increased $214.2\∼276.3\%$ and $29.9\∼91.7\%$ than those of AMP alone. As a result, when $5\;wt\%$ HMDA added into AMP, the increasing rate of the absorption rate and the absorption capacity was found to be the highest. In addition, the absorption capacity increased $6.8\%,\;9.8\%,\;11.6\%$ with addition of MDEA, piperazine or HMDA respectively as compared to AMP alone at $CO_{2}$ partial pressure of 20 kPa. Consequently, HMDA as additive to improve absorption capacity of AMP was superior to other additives.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.286-287
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• 2018

우리나라의 1인 가구 비중은 증가하고 있으며 여성이나 노인들의 위험 상황에 지원하기 위한 시회적인 요구가 증가하고 있다. 이런 문제를 해결하기 위해서는 누구나 모션 센서가 내장된 핸드폰을 가지고 있으며 범죄나 건강상의 응급 상황에 핸드폰의 간단한 동작을 통해 병원의 응급센터나 경찰에 신고하는 체계적인 방법이 중요한 문제로 대두되고 있다. 본 논문은 모바일 앱의 백그라운드 상태에서 사용자의 모션 인식을 통해 응급 신고 처리를 위한 설계 방법을 제안한다. 제안된 방법은 추가된 하드웨어 없이 비용이 저렴하고 간단한 손동작으로 실내와 실외 환경에서 응급 처치 서비스를 제공한다.