• Title/Summary/Keyword: Survey Study

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A study on the Damaged tree by the Inferior Drainage in a Prepared Housing Site (주택단지조성시 배수불량으로 인한 수목피해에 관한 연구 -평택 아파트단지를 중심으로 -)

  • 최용순;심경구
    • Journal of the Korean Institute of Landscape Architecture
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    • v.23 no.2
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    • pp.195-204
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    • 1995
  • This study is focused on the groping for the alternative ways in order to prevent the various bad factors caused by the Inferior environment on the planted trees. In the reclaimed paddy field which is planned to make a housing site, for example, we are trying to catch the problem about the special feature of the unharmonized drainage. And the survey gives the suitable way of planting trees. This survey was carried out in the three different area and could notice some phenomena : There are a few different conditions for water supply int\ulcorner the soil according to the height of the land-filling from the original ground and the slope of the planting area. And the imporant factor of the drainage effect is not the soil texture itself but the depth of the filling land. As a result of this survey, the study shows the economic alternative for reducing the demage of the planting trees which is due to drainage system.

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Comparative Study on Annoyance of Traffic and Aircraft noise (도로소음과 항공기소음의 성가심 반응 비교 연구)

  • Lee, Ki-Jung;Chang, Seo-Il;Lee, Kun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.11a
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    • pp.131-134
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    • 2005
  • This study examine the annoyance of transportation noise exposure and found the survey method about which noise induces more disturbance or annoyance when more than two kinds of noise exist. This study describes the noise annoyance survey performed in the vicinity of Sin-wol interchange. This residential area was exposed to aircraft noise and traffic noise simultaneously and aircraft noise exposure of this area is about 81 WECPNL, traffic noise exposure is about 81.2 dB(A) nearby road. Noise sources are grouped into three part, traffic noise, aircraft noise and community noise. The questionnaire includes how often, how loud each noise is heard. Also this deals with comparative annoyance reaction from specific noise sources such as aircraft or traffic and its disturbance of daily activities. Facade noise mapping are executed by using a commercial noise mapping software.

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Exploring the Instructional Use of Instagram for Korean Language Learning (한국어 교육에서의 인스타그램 활용 가능성 탐색 -미국 대학교의 사례를 중심으로-)

  • Ahn, Jaerin;Shim, Yunjin
    • Journal of Korean language education
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    • v.29 no.4
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    • pp.65-92
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    • 2018
  • This study explored how a particular social media can be used to supplement elementary-level Korean language course in the US public university. The researchers administered a survey measuring students' patterns and habits of social media use. Based on the survey results, researchers designed six different types of learning materials and uploaded them regularly to Instagram throughout the semester. At the end of the semester, a survey was conducted to find out students' satisfactory level. From the 44 students' responses, the study found out that using Instagram 1) is more accessible to students than any other learning management system, 2) is fun and students are willing to participate, 3) increased the target language exposure and authentic language use, 4) increased interaction between teachers, students and even other native speakers, and 5) is helpful to improve listening and other language skills. The study closes with the suggestion for further experimental studies.

A Study on Diagnostics Method for Categorical Data (범주형 자료의 진단방법에 관한 연구)

  • 이선규;조범석
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.18 no.33
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    • pp.93-102
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    • 1995
  • In this study we are concerned with the diagnostics method of cross-classified categorical data using logistic regression model of binary response models for cell proportions. under this model, we could examine the goodness-of-fit of the models using Pearson's $x^2$test statistic and likelihood ratio statistic. Under this model, these statistics are assumed that sample survey schemes are with replacement sampling model. But these statistics are often inappropriate for analysing contingency tables consists of complex sampling schemes obtained sample survey data. In this study we are examined diagnostics procedures detecting any outlying cell proportions and influential observations on design space in logistic regression modeltake account of the survey design effects.

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A Study on Characteristics of the Survey for Architectures by Joseon Government-General through its List of Architectural Heritages in North Korea (일제강점기 북한지역 고건축물 목록을 통해 본 조선총독부 학무국 고건축 조사의 성격)

  • Seo, Hyowon
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.5
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    • pp.95-106
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    • 2019
  • The purpose of this study was to analyze the "朝鮮古建築物", the list of architectural heritages in Korea during the early Japanese colonial period. The list included architectural heritage of the region of North Korea in the colonial era. A process of listing was showing the meaning of an architectural heritage for the Japanese General Government through the criteria of selecting buildings registered on the list. This study revealed the process of a survey for making list and explored the criteria of the list. The result of this effort will contribute to determining the historical background of North Korea's architectural heritage in the early days.

A Research about Importance and Satisfaction in Each Tasks on Apartment Remodeling (공동주택 리모델링 사업의 업무별 중요도 및 만족도 조사)

  • Oh, Chi-Seob;Choi, yun-ki
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.6
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    • pp.35-43
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    • 2018
  • As rapid increasing of domestic apartments, decline of the market value of the old apartment and to be announced policy by government are re-lighting to be insufficient growth than the past 15 years in market of apartment remodeling. In this study, research the conflicts on apartment remodeling project and analysis of importance and satisfaction by survey. Also, the survey was being progressed for every participant who are related in an apartment remodeling project. After this study, this study will propose basic data for effective way to improve on apartment remodeling project. For this purpose, generalize the project stage level by level. And analysis status of business progress to be felt from participants of project. According to the results by a survey, the each result of elements can be a reference value for a good way of apartment remodeling to proceed and improve.

Side-Channel Attacks Detection Methods: A Survey

  • Assaeedi, Joanna;Alsuwat, Hatim
    • International Journal of Computer Science & Network Security
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    • v.22 no.6
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    • pp.288-296
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    • 2022
  • Side-channel attacks are a quiet mighty type of attack that targets specific physical implementations vulnerabilities. Even though several researchers have examined diverse means and methods of detecting side-channel attacks, at the present time a systematic review of these approaches does not exist. The purposes of this paper are to give an extensive analysis of literature on side-channel attack detection and offer intuitiveness from past research studies. In this study, a literature survey is conducted on articles related to side-channel attack detection between 2020 and 2022 from ACM and IEEE digital libraries. From the 10 publications included in the study, it appears they target either a single type of side-channel attacks or multiple types of side-channel attacks. Therefore, a vital review of each of the two categories is provided, as well as possible prospective research in this field of study.

Studies on Storage Characteristics of Perilla Perfrutescens var. Acuta, Mentha Arvensis L. var. Piperascens Malinvaud According to Packaging Method (포장방법별 소엽, 박하의 저장성 연구)

  • Kim, Soo-Min;Kim, Eun-Ju
    • The Korea Journal of Herbology
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    • v.24 no.1
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    • pp.9-14
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    • 2009
  • Objectives : The purpose of this study is to investigate on storage characteristics of flavouring oriental medicine materials according to Packaging method(Aluminum package, PP). Methods : This experiments were carried out by field survey and storage characteristics were carried out by physicochemical determination. Results : Flavouring oriental medicine materials were used to in aluminum package to keep original flavour in Japan and Chinese by field and study survey. In view of this survey results, it is very desirable to use zipper Aluminum package in flavouring oriental medicine materials(Perilla perfrutescens var. acuta, Mentha arvensis L. var. piperascens malinvaud). Conclusions : This study results revealed that Aluminum package were superior to any other package method on the basis of keeping original flavour and to reduce microbial contamination in oriental medicine materials.

A Case Study on the Use of Digital Learning Tools for Effective Class Operation (효과적인 수업 운영을 위한 디지털 학습 도구 적용 사례 연구)

  • Kim Sungrim;Kwon Joonhee
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.19 no.2
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    • pp.1-10
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    • 2023
  • Digital transformation is accelerating in all industries due to COVID-19 and rapidly developing ICT technology. In the field of education, teaching methods that combine various IT devices and software technologies are being applied. The education requires a future learning environment using EduTech such as digital learning tools. We perform a case study on the use of digital learning tools for effective class. In this study, digital learning tools were applied to an university class. The class was held in the second semester of 2022 at A university, with 67 students participating. In our case, QuizN, Mentimeter, and Google Forms were applied as digital learning tools. In order to evaluate our case, a survey was conducted using the Google Questionnaire. From the results of the survey evaluation, more than 85% of all survey questions answered that they were satisfied. From it, digital learning tools were shown to be effective in class operation.

A Survey of Children's Librarians in Public Libraries for Developing Continuing Education Program (공공도서관 어린이 사서의 계속교육 프로그램 개발을 위한 현황 분석)

  • Cha, Mi-Kyeong;Lee, Yeon-Ok;Yang, Soo-Youn;Jeong, Hye-Mi
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.18 no.1
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    • pp.95-115
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    • 2007
  • The purpose of this study was to develop a continuing education program for children's librarian. For this. this study conducted a questionnaire survey of children's librarians on current status of the children's services, the backgrounds of children's librarians and their needs for the continuing education. Based on the survey results. this study suggested a continuing education program, including content and policy for the children's librarians.