• Journal of Information Processing Systems
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• 제18권6호
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• pp.755-762
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• 2022

The existing electrical engineering design method and the dynamic objective function in the application process of automatic control system fail to meet the unbounded condition, which affects the control tracking accuracy. In order to improve the tracking control accuracy, this paper studies the electrical engineering design method based on neural network and the application of automatic control system. This paper analyzes the structure and working mechanism of electrical engineering automation control system by an automation control model with main control objectives. Following the analysis, an optimal solution of controllability design and fault-tolerant control is figured out. The automatic control power coefficient is distributed based on an ideal control effect of system. According to the distribution results, an automatic control algorithm is based on neural network for accurate control. The experimental results show that the electrical automation control method based on neural network can significantly reduce the control following error to 3.62%, improve the accuracy of the electrical automation tracking control, thus meeting the actual production needs of electrical engineering automation control system.

• Agricultural and Biosystems Engineering
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• 제7권1호
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• pp.18-26
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• 2006

In-field site-specific nitrogen (N) management increases crop yield, reduces N application to minimize the risk of nitrate contamination of ground water, and thus reduces farming cost. Real-time N sensing and fertilization is required for efficient N management. An 'on-the-go' site-specific N management system was developed and evaluated for the supplemental N application to com (Zea mays L.). This real-time N sensing and fertilization system monitored and assessed N fertilization needs using a vision-based spectral sensor and controlled the appropriate variable N rate according to N deficiency level estimated from spectral signature of crop canopies. Sensor inputs included ambient illumination, camera parameters, and image histogram of three spectral regions (red, green, and near-infrared). The real-time sensor-based supplemental N treatment improved crop N status and increased yield over most plots. The largest yield increase was achieved in plots with low initial N treatment combined with supplemental variable-rate application. Yield data for plots where N was applied the latest in the season resulted in a reduced impact on supplemental N. For plots with no supplemental N application, yield increased gradually with initial N treatment, but any N application more than 101 kg/ha had minimal impact on yield.

• 디자인학연구
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• 제13권
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• pp.203-209
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• 1996

최근에 와서 시각전달방법 및 표현매체로서의 컴퓨터 그래픽스 활용 및 의존도는 지대해 지고 있다. 이것은 미국, 일본 등 선진외국 뿐만 아니라, 우리 나라에서도 역시 디자인에 대한 컴퓨터그래픽스 활용의 중요성의 점점 더 부각되고 있다. 컴퓨터그래픽스 디자인은 이제 생활의 일부분이 되고 있으며, 하나의 문화로 정착되어 시각문화 재창출의 중요한 자리를 차지하고 있다. 디자인이 경쟁력을 지니기 위해서는 차별화 계획이 필요하며, 대중의 욕구와 이에 필요한 대중 지향적 디자인의 필요성이 요구되는 것이다. 수년 전 만해도 수 작업에만 의존했던 디자인 방법이 컴퓨터의 출현과 함께 활용 및 기법에 있어, 새로운 기원을 이룩하고 있는 것이다. 본 연구에서는 표현 방법의 도구로서 컴퓨터를 활용했을 때 작업에서 얻어지는 원고의 활용 성을 부문별로 분석해보고, 앞으로 일반화될 컴퓨터 그래픽스의 활용방안을 생각해 보고자 한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2007년도 춘계종합학술대회
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• pp.76-79
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• 2007

최근 유비쿼터스 환경을 위한 핵심기술로 RFID가 이슈화되고 있다. 특히, RFID와 함께 이동통신과 인터넷이 결합된 무선인터넷망을 이용한 모바일 RFID의 출현은 사용자에게 새로운 서비스를 제공하고 부가가치의 증대를 가져다준다. 이러한 모바일 RFID 서비스 제공을 위해서는 그에 따른 적절한 과금 정책이 필요하다. 현재 망 접속에 대한 인증, 권한, 과금 서비스를 제공하기 위해 널리 사용되는 Diameter Base Protocol은 후불제 과금 방식만을 제공한다. 이러한 과금 방식 외에 다양한 과금 방식을 제공하기 위해서 선불 과금 기능이 제공되는 Diameter Credit-Control Application을 고려해야할 필요성이 있다. 본 논문에서는 모바일 RFID 서비스에서 선불 과금 방식을 위해 모바일 RFID 시스템에 Diameter Credit-Control Application을 적용하는 것을 제안한다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.586-589
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• 2006

High resolution satellite imagery is regarded as one of the important data sets to engineering application, as well as conventional scientific application. However, despite this general view, there are a few target applications using this information. In this study, the possibility for the future wide uses in associated with smart graphics of this information is investigated. The concept of smart graphics can be termed intelligent graphics with XML-based structure and knowledge related to semantic web, which is a useful component for the data dissemination framework model in a multi-layered web-based application. In the first step in this study, high resolution imagery is transformed to GML (Geographic Markup Language)-based structure with attribute schema and geo-references. In the second, this information is linked with GIS data sets, and this fused data set is represented in the X3D (eXtensible 3D), ISO-based web 3D graphic standard, with styling attributes, in the next stop. The main advantages of this approach using GML and X3D are the flourished representations of a source data according to user/clients’ needs and structured 3D visualization linked with other XML-based application. As for the demonstration of this scheme, 3D urban modelling case with actual data sets is presented.

• 한국인공지능학회지
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• 제3권1호
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• pp.4-6
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• 2015

These days, citizens have made change of food life to take Western style food and to suffer from diabetes because of excessive nutrition taking, less exercise, stress and other environmental factors. They may suffer from diabetes because of genetic defect, surgery of pancreas, disinfection and medicine and others. One of ten Koreans may have symptom of diabetes to be popular. The diabetes that is a kind of metabolic disease has high blood sugar at disorder of hyper insulinism and/or defect of insulin action. Long time high blood sugar may produce chronic disease of kidney, eyes, nerve, heart and blood vessel and others. The purpose of health care of diabetes patient was to reach target blood sugar by diet, physical exercise and medicine and to prevent and delay complication. Diabetes patient shall control blood sugar to keep healthy. The blood sugar control requires time and effort, and all of the patients are difficult to make effort and to spend time. You can control blood sugar by the application. The application allows patients to control blood sugar and to save time and efforts and to make small sized input and automation of remaining area. The service was limited to blood sugar graph, and user carries smart phone to conduct test and to have difficulty. Further study needs to solve the problems and to investigate blood sugar testing not carrying smart phone and to make application of easy control of blood sugar.

• 대한원격탐사학회지
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• 제24권5호
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• pp.389-396
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• 2008

In these days, various kinds of web applications based on web 2.0 paradigm have been developed. In web 2.0 paradigm pursuing participation, sharing, and openness on the web-as-platform, web mapping or web GIS application are regarded as top most applications, so that web applications, handling geo-spatial contents, with user-interaction interface and search engine of high performance have been provided for both public users and expert users in the special domains. Public and industrial needs for web mapping mashup application by open API, linked with the practical web computing technologies, are gradually increasing. In this study, a user interface in mashup for geo-spatial feature generation was implemented by using mainly Google maps API. Spatial database resources in this implementation are those of Google mapping server. As the results, public users on web client can create their own geo-spatial data sets in web vector formats, without the help of any GIS tools or access to proprietary databases. It is concluded that web-based mashup application in client-side using open API can be used as an alternative for geo-browsing system or portable feature generation system.

• 여성건강간호학회지
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• 제27권3호
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• pp.243-255
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• 2021

Purpose: This study aimed to develop a lifestyle modification (LSM) mobile application based on the Android operating system for overweight and obese breast cancer survivors (BCS) in Korea and evaluate its usability. Methods: The content analysis, design, development, implementation, and evaluation of the LSM intervention mobile application for overweight and obese BCS was conducted by identifying survivors' needs, searching the literature, and reviewing existing mobile applications. The survey was conducted from June 1 to December 28, 2020 at Jeonju, Korea. Results: The mobile application for BCS included dietary and exercise information, weight logs, as well as distress and daily achievement check. It also included information and videos on the prevention of breast cancer recurrence and used a communication bulletin board. Expert and user usability evaluation of its content and functions confirmed that it was appropriate and satisfactory for overweight and obese BCS. Conclusion: This LSM mobile application developed for overweight and obese BCS was found to be appropriate for use. It can be applied for further study of effectiveness on improving their health and maintaining a healthy lifestyle, to ultimately improve quality of life.

• 대한영양사협회학술지
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• 제8권1호
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• pp.19-25
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• 2002

The purposes of this study were to : (1) identify the faculty and staffs' patronage behaviors, (2) evaluate customer perception and complaint on service quality attributes, (3) diagnose customer needs to construct scheme for building a new faculty foodservice. The qualitative method of this research was proceeded by interviewing 20 individuals. Most respondents considered that 'taste', 'atmosphere', 'clean and sanitation', and 'menu variety' were important rather than 'price' in general faculty foodservice. Therefore, 'taste', 'menu variety', 'atmosphere' were the most important service attributes for remodeling present faculty foodservice.

• 대한인간공학회지
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• 제30권4호
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• pp.509-515
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• 2011

Objective: The study was performed to suggest factors to consider when making or selecting protective clothing to enhance farmers' health. The purpose of this study was to review and summarize the agricultural safety technology on clothing including hat, gloves, and shoes. Background: The farmers' work clothing has to meet a multitude of requirement. Risk factors in farm-work were identified by previous researches. Agricultural safety clothing needs to be introduced. Method: We reviewed previous papers regarding the agricultural workers' health, safety clothing to protect body from excessive heat and humid environment, ultraviolet(UV) protection, and hazardous body working postures. Also the UV cut effect, pesticideproof clothing, and preventable farm work related musculoskeletal disorders were discussed. Results: The agricultural safety clothing needs to be developed to provide comfort and to be resistant against heat. The UV protection function on skin and eyes has not been fully researched in safety clothing studies yet. Conclusions and Application: The farmers' work-related body posture needs to be studied in order to make and design agricultural safety clothing. The safety issues on agricultural work shoes are also needed to be included in future studies.