• Title/Summary/Keyword: History of research

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Technology Odyssey: An Introductory Engineering Course based on Soft Engineering

  • Yoon, Joongsun
    • Journal of Engineering Education Research
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    • v.23 no.4
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    • pp.22-27
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    • 2020
  • We propose and execute an introductory engineering course for investigating the history of technology and the philosophy of technology. Soft engineering, to explore proper technology and appropriate ways of exercising engineering, has been explored. Creative cases for technology are presented following the most creative, successful periods-the ancient greece, the Renaissance and Silicon Valley era. Ancient greek technology has been investigated in terms of "techne" with the origin of technology and/or art, and their equivalences. The Renaissance period has been investigated in terms of "Uomo universale (polymath)" with Firenze geniuses. The successful drives for the Silicon Valley creativeness have been investigated following "entrepreneurship". To overcome the difficult goal to grasp course subject-technology issues, we take a stance as a tourist guide and tourists utilizing offline onsite experiences and online informations. Categorized course materials are surveyed at the beginning of each period and presented following the preferences of the students to maintain the students' interests. Team efforts including group discussions and project executions have been encouraged to seek the aspects of creativeness and/or technology. This paper summarizes the 3-lecture experiences over 2 years for Korean students and/or foreign students conducted at Pusan National University.

Effect of Child Development Knowledge, Rearing Knowledge and Use of Health Care Service on Maternal Confidence among Mothers with Premature Infants (어머니의 미숙아 발달지식, 양육지식, 퇴원 후 보건의료서비스 이용이 모성자신감에 미치는 영향)

  • Kim, So Yeon;Kang, Sook Jung
    • Child Health Nursing Research
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    • v.23 no.4
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    • pp.407-415
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    • 2017
  • Purpose: The purpose of this study was to examine how child development knowledge, child rearing knowledge, and use of healthcare services after discharge affect maternal confidence among mothers of premature infants. Methods: Participants in this study were 55 mothers who were involved in internet communities for mothers with premature infants and 30 mothers who visited hospitals for follow up care after having their babies discharged from Neonatal Intensive Care Units (NICU) in South Korea. Results: Presence of operation history, child development and rearing knowledge, and use of healthcare service explained 12.2% of maternal confidence. Presence of operation history (${\beta}=.32$, p<.05) and child development knowledge (${\beta}=.52$, p<.05) were significant predictors for maternal confidence. Conclusion: The results of this study suggest that mothers with premature infants need further education especially on motor development, developmental knowledge, and knowledge related to operations for mothers whose child had surgery in the NICU. Also information about services provided from community health services for premature infants need to be advertised and distributed.

Seismic performance of single pier skewed bridges with different pier-deck connections

  • Attarchiana, Nahid;Kalantari, Afshin;Moghadam, Abdolreza S.
    • Earthquakes and Structures
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    • v.10 no.6
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    • pp.1467-1486
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    • 2016
  • This research focuses on seismic performance of a class of single pier skewed bridges with three different pier-deck connections; skew angles vary from $0^{\circ}$ to $60^{\circ}$. A well-documented four span continuous deck bridge has been modeled and verified. Seat-type connections with fixed and sliding bearings plus monolithic pier-deck connections are studied. Shear keys are considered either fully operational or ineffective. Seismic performances of the bridges and the structural components are investigated conducting bidirectional nonlinear time history analysis in OpenSees. Several global and intermediate engineering demand parameters (EDP) have been studied. On the basis of results, the values of demand parameters of skewed bridges, such as displacement and rotation of the deck plus plastic deformation and torsional demand of the piers, increase as the skew angle increases. In order to eliminate the deck collapse probability, the threshold skew angle is considered as $30^{\circ}$ in seat-type bridges. For bridges with skew angles greater than $30^{\circ}$, monolithic pier-deck connections should be applied. The functionality of shear keys is critical in preventing large displacements in the bearings. Pinned piers experience considerable ductility demand at the bottom.

A Study of the History of Medical Administration in Qing(淸) Dynasty (청대(淸代) 의정사(醫政史)에 관한 연구)

  • Kim, Ki-Wook;Park, Hyun-Kuk
    • The Journal of Dong Guk Oriental Medicine
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    • v.10
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    • pp.98-118
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    • 2008
  • Basic summary of the medical administration : Due to Qing dynasty being the last of the dynastic era, it revealed overall extreme political traits in politics, economy, phenomenon, and cultural aspects. Few emperors of the early Qing dynasty adopted appeasement policy that mitigated ironies to a certain extent and showed growth in various business related fields. Even the medical administration had freshness during that period. United medical administrative system was generally formed, chicken pox was effectively prevented, shamanistic treatment was banned, medical journals were complied by the government, medical relief was more intensely done. However, actions on restoring Ming dynasty and against Qing dynasty as well as the reform power grew against Qing government threatening it. The drastically grown forces from the western region dan1aged Qing dynasty that the governors had to adopt despotic measures in politics, economy and culture. Social chaos began to arise, economy stagnated and weakened that the medical field also dwindled to the point where it could not be restored to the original point. The era of Qing dynasty was the period that had scientific culture at its fast growing pace, but for Chinese medicine, by contrary, due to autocracy and other factors, was faced with barriers in the medical development.

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Plan and Scale in the Traditional Houses of Honan Province - Based on the Case of Bangchon Village in Janghung County - (호남지방 전통주택에서의 규모와 평면형식 -전남 장흥군 관산읍 방촌만을을 중심으로-)

  • Kim, Sung-Woo;Lee, So-Yeon
    • Journal of architectural history
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    • v.2 no.2 s.4
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    • pp.66-76
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    • 1993
  • The plan of Korean traditional houses are devided by the span-units which is the automatic result of the timber construction. This study aims to analyze the ways plan type change when the number of span changes. One village named Bangchon in Honan Province was selected where we investigated more than 30 houses ranging from 3 span to 6 span. It is identified that there were certain rules which govern the plan change when number of span change. When one span is added onto 3 span houses, wooden floor of one span is added in between the two ondol-rooms. When one span is added onto 4 span houses, kitchen is enlarged. When one span is added onto 5 span houses, wooden floor is enlarged into 2 span, Also the plan of Man's quarter(Sarang-chae) was investigated and compared to Lady's quarter. The research proves that such rules of plan change need to be considered as a basic standard of analysis when traditional houses are to be studied.

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Formation of Industrial Heritage Complex focusing on Incheon Rice Mill Industry (인천 정미업을 중심으로 한 산업유산군의 형성에 관한 연구)

  • Nam, Jee-Hyun;Jang, Hoi-Suk
    • Journal of architectural history
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    • v.23 no.2
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    • pp.7-24
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    • 2014
  • The purpose of this research is to clarify the valuable industrial heritages of rice mill industry complex remained in Incheon. In order to clarify the formation of integrated historical setting of rice mill industry of Incheon, we analyzed the old map of Incheon's old Jemulpo area and data on address, locations and happenings surrounding rice mill factories and relevant facilities. From here, we could find out the 4 representative rice mill industry area of integrated historical setting and 2 other supporting service area for rice mill industry in old city center of Incheon. Specifically, we could figure out the incremental stages to establish the rice mill industry in Incheon. In the first stage, the rice mill factories were established near foreign settlement area where trading offices and warehouses were equipped. And the second stage reflect the needs of expanding area for Japanese capitalism with the new landfill area. In the final stage, Korean rice mill owners established the korean laborers community near Korean residential area. This formation of integrated historical setting reflecting Incheon's rice mill industry is the identical industrial heritages and urban structures to show the tension and conflict between Japanese and Korean laborers' life in the Japanese Colonial Period.

A Study on the System Improvement Plan for Urban Regeneration of Historical and Cultural Environment - Focusing on the case of Hwangnam and Inwang Hanok district in Gyeongju - (역사문화환경의 도시적 재생을 위한 제도개선방안 연구 - 경주 황남·인왕 한옥지구 사례를 중심으로 -)

  • Kim, Nam-Hee;Lee, Hee-Chung
    • Journal of architectural history
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    • v.30 no.4
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    • pp.91-102
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    • 2021
  • This study is a case study of system improvement measures for urban regeneration of the historical and cultural environment. The example areas are Hwangnam and Inwang Hanok districts in Gyeongju City, which operate various systems to solve the urban decline problem caused by the historical and cultural environment regulations. The subjects of this study are resident support programs and district unit planning systems under the advanced promotion system established in the case area. As research methods, literature studies, field surveys, and in-depth interviews were conducted. Through this, the background and purpose of introduction of each system, major plan contents, and problems of the system application process were analyzed. This study drew the following implications through case studies. First, in order to more effectively promote the urban regeneration of the historical and cultural environment, it is necessary to improve the related systems in an integrated and systematic manner. Second, in order to resolve the policy distrust of local residents in the historical, cultural and environmental management system, a wider variety of planned alternatives to narrow the difference in interests between the public and private sectors should be presented.

A study on the changes of urban organization and social meaning in the western Area of Gyeongbokgung Palace - Focused on Nuha-dong and Pilun-dong after the modern era - (경복궁 서측 지역의 도시조직 변화와 사회적 의미 고찰 - 근대기 이후 누하동, 필운동의 주요 사례 필지를 중심으로 -)

  • Bae, Chang-Hyun
    • Journal of architectural history
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    • v.31 no.3
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    • pp.31-40
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    • 2022
  • In the historical city center where overall development has not been made, it is not difficult to observe the asp ect of the urban change process over time accumulated. Seochon(西村), which collectively refers to 13 legal dong s in the west of Gyeongbokgung Palace, is also considered a representative historical village with high value as a historical and cultural cityscape because of historical context remains throughout the lot. Therefore, research ex amining the process of changing parcels in this area is useful for a more three-dimensional understanding of the presence of several layers of time. In this study, relationship between the opening time of each road, the river co ver process, and the current building establishment process is examined using maps after the pre-modern period and modern era. In addition, to examine the specific change process of individual lots using the old land register, building management ledger and cadastral map.

Comparative Evaluation of Machine Learning Models for Predicting Soccer Injury Types

  • Davronbek Malikov;Jaeho Kim;Jung Kyu Park
    • Journal of the Korean Society of Industry Convergence
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    • v.27 no.2_1
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    • pp.257-268
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    • 2024
  • Soccer is type of sport that carries a high risk of injury. Injury is not only cause in the unlucky soccer carrier and also team performance as well as financial effects can be worse since soccer is a team-based game. The duration of recovery from a soccer injury typically relies on its type and severity. Therefore, we conduct this research in order to predict the probability of players injury type using machine learning technologies in this paper. Furthermore, we compare different machine learning models to find the best fit model. This paper utilizes various supervised classification machine learning models, including Decision Tree, Random Forest, K-Nearest Neighbors (KNN), and Naive Bayes. Moreover, based on our finding the KNN and Decision models achieved the highest accuracy rates at 70%, surpassing other models. The Random Forest model followed closely with an accuracy score of 62%. Among the evaluated models, the Naive Bayes model demonstrated the lowest accuracy at 56%. We gathered information about 54 professional soccer players who are playing in the top five European leagues based on their career history. We gathered information about 54 professional soccer players who are playing in the top five European leagues based on their career history.

Vaccines development in India: advances, regulation, and challenges

  • Rakshita Salalli;Jyoti Ram Dange;Sonia Dhiman;Teenu Sharma
    • Clinical and Experimental Vaccine Research
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    • v.12 no.3
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    • pp.193-208
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    • 2023
  • One of the most significant medical advancements in human history is the development of vaccines. Progress in vaccine development has always been greatly influenced by scientific human innovation. The main objective of vaccine development would be to acquire sufficient evidence of vaccine effectiveness, immunogenicity, safety, and/or quality to support requests for marketing approval. Vaccines are biological products that enhance the body's defenses against infectious diseases. From the first smallpox vaccine to the latest notable coronavirus disease 2019 nasal vaccine, India has come a long way. The development of numerous vaccines, driven by scientific innovation and advancement, combined with researcher's knowledge, has helped to reduce the global burden of disease and mortality rates. The Drugs and Cosmetics Rules of 1945 and the New Drugs and Clinical Trials Rules of 2019 specify the requirements and guidelines for CMC (chemistry, manufacturing, and controls) for all manufactured and imported vaccines, including those against coronavirus infections. This article provides an overview of the regulation pertaining to the development process, registration, and approval procedures for vaccines, particularly in India, along with their brief history.