• Journal of IKEEE
• /
• v.24 no.4
• /
• pp.1034-1038
• /
• 2020

In order to effectively process target recognition using radar, accurate signal information for the target is required. However, such a target signal is usually mixed with noise, and this part of the study is continuously carried out. Especially, image processing, target signal processing and target recognition for the target are examples. Since the field of target recognition is important from a military point of view, this paper carried out research on target recognition of aircraft using a tree-structured fuzzy neural networks. Fuzzy neural networks are learned by using reflected signal data for an aircraft to optimize the model, and then test data for the target are used for the optimized model to perform an experiment on target recognition. The effectiveness of the proposed method is verified by the simulation results.

• The Korean Journal of Emergency Medical Services
• /
• v.27 no.3
• /
• pp.101-111
• /
• 2023

Purpose: This study attempted to identify how academic self-efficacy, grit, and learned helplessness influence Academic delay behavior in college students and provide a foundation for reducing Academic delay behavior in college students. Methods: Data was collected from October 12, 2023 to October 30, 2023 using a structured questionnaire from 170 college students at a university in City D. The data was collected using a structured questionnaire. Results: Academic delay behaviors were significantly negatively correlated with academic self-efficacy (r=-.371, p<.001) and grit (r=-.562, p=.012), and significantly positively correlated with learned helplessness (r=.341, p<.001). Conclusion: Finally, In order to reduce academic delay behaviors among college students, it is necessary to actively utilize educational environments that promote academic achievement and grit, academic-related counseling programs, and learning environments that do not suffer from academic helplessness.

• International Journal of Internet, Broadcasting and Communication
• /
• v.16 no.3
• /
• pp.329-333
• /
• 2024

With increasing applications of technologies developed in the Fourth Industrial Revolution, data have come to replace important knowledge and experience in the agricultural field. Although data-based smart agriculture is growing at an average annual rate of 8.57%, research on ways to utilize data produced alongside is remains insufficient. Because such data may considerably help stakeholders involved in agricultural activities, we deployed the prosumer concept to revitalize agricultural data. We systematically structured and defined three relevant entities: the prosumer, which produces and consumes agricultural data; the database, which systematically processes and integrates agricultural data; and the consumer, which utilizes agricultural data in various ways. Our framework is designed to help stakeholders use agricultural data to improve the quality of crops, minimize the failure of agricultural activities, quickly adapt to new environments and methods of crop production, and find effective solutions to relevant issues.

• Journal of the Korean Home Economics Association
• /
• v.24 no.2
• /
• pp.83-91
• /
• 1986

The purpose of this study was to determine the relationships of children's sex and age to the characteristics of wall motifs. A pilot study was conducted to pool motifs which can be used on the walls of children's rooms. 69 motifs were found and classified into 12 categories. The data consisted of the responses to a structured questionnaire to determine preference and actual use of motifs. The subjects were middle school children from middle income classes living in Seoul, Data were analysed by computer using frequency, percentage, χ\sup 2\, and C\sup 2\. Children's sex and age differences were somewhat distinctively found in preferred motifs.

• Journal of Korean Society for Quality Management
• /
• v.30 no.1
• /
• pp.152-161
• /
• 2002

The analysis of large data sets with hundreds of thousands observations and thousands of independent variables is a formidable computational task. A less parametric method, capable of identifying important independent variables and their interactions, is a tree structured approach to regression and classification. It gives a graphical and often illuminating way of looking at data in classification and regression problems. In this paper, we have reviewed and summarized tile methodology used to construct a tree, multiple trees and the sequential strategy for identifying active compounds in large chemical databases.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.23 no.59
• /
• pp.85-95
• /
• 2000

Since the cost of a new product is determined mainly at the design stage, systematic tools to support the new product to be manufactured at the predetermined cost is very important for successful introduction of a new product. PDM is a tool to support engineers to integrate product data throughout the product development. In this paper, we introduce a prototype of PDM system which has a target costing function, where cost estimation is coupled with structured product data.

• Journal of Biomedical Engineering Research
• /
• v.10 no.2
• /
• pp.157-164
• /
• 1989

Three-dimensional imaging and manipulation of CT data are becoming increasingly important for deterRing the complex structure and pathologies. Octree which is a hierarchical data model is used to reconstruct three- dimensional objects from CT scans. Orthogonal cross sections are displayed by traverse the octree partially. Arbitrary oblique planes are derived by intersecting the square region of plane and cubic volume of octal node. Thia method enables the display of multi-structured complex organ ann the realization by personal computer.

• Journal of the Korean Home Economics Association
• /
• v.36 no.2
• /
• pp.105-120
• /
• 1998

This study delineates the preferences of elderly housing characteristics among a middle-aged population. The data were collected from an independent, random, age-stratified sample of house wives using structured questionaire and interview methods. The data were analyzed using a SAS statistics analysis program. The preferred way of living style and housing characteristics were investigated. Preferred housing characteristics were influenced by age, income, job and education. Education was the most powerful indicator for predicting the preferences.

• Journal of The Korean Astronomical Society
• /
• v.47 no.3
• /
• pp.115-122
• /
• 2014

The New Vacuum Solar Telescope (NVST) is a 1-meter vacuum solar telescope that aims to observe the fine structures of active regions on the Sun. The main tasks of the NVST are high resolution imaging and spectral observations, including the measurements of the solar magnetic field. The NVST has been collecting more than 20 million FITS files since it began routine observations in 2012 and produces maximum observational records of 120 thousand files in a day. Given the large amount of files, the effective archiving and retrieval of files becomes a critical and urgent problem. In this study, we implement a new data archiving system for the NVST based on the Fastbit Not Only Structured Query Language (NoSQL) database. Comparing to the relational database (i.e., MySQL; My Structured Query Language), the Fastbit database manifests distinctive advantages on indexing and querying performance. In a large scale database of 40 million records, the multi-field combined query response time of Fastbit database is about 15 times faster and fully meets the requirements of the NVST. Our slestudy brings a new idea for massive astronomical data archiving and would contribute to the design of data management systems for other astronomical telescopes.

• Journal of the Society of Disaster Information
• /
• v.18 no.3
• /
• pp.609-621
• /
• 2022

Purpose: Natural Disaster has well formed framework more than social disaster, because natural disaster is controlled by one department, such as MOIS, but social disaster is distributed. This study is on the design of the integrated service platform for the social diaster data. and then, apply to the local governments. Method: Firstly, we design DB templates for the incident cases considering the incident investigation reports. For the risk management, life-damage oriented social disaster risk assessment is defined. In case of the real-time incident data from NDMS, AI system provides the prediction information in the life damage and the cause of the incident. Result: We design the structured and unstructured incident data management system, and design the integrated social disaster and safety incident management system. Conclusion: The integrated social disaster and safety incident management system may be used in the local governments