• 한국학교보건학회지
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• 제35권3호
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• pp.143-151
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• 2022

Purpose: The purpose of this study was to examine the effects of being aware of the physical and psychosocial environment of the school on subjective feeling of happiness in Korean middle and high school students. Methods: The data of "Health and lifestyle Survey (2019)" conducted by the National Youth Policy Institute were analyzed after receiving approval though the website. A total of 5,311 middle and high school students were included in the analysis. Descriptive statistics, t-test, one-way ANOVA, pearson correlation, and multiple regression analysis were executed using SAS 9.4. Results: The mean score of subjective feeling of happiness was 6.92±0.56 out of 10. From the univariate analysis, the more positive the perception of the physical school environment was, such as classrooms, restrooms, exercise facilities, catering facilities, health facilities, other school facilities and school uniform, the higher the subjective feeling of happiness was (p for all <.001). In addition, the psychosocial environment of the school was significantly related to the happiness of adolescents (p<.001). After controlling for gender, school level, school grade, socio-economic status, and stress, positive perception of classrooms (B=0.04, p<.001), catering facilities (B=0.01, p=.021), health facilities (B=0.08, p<.001), and the psychosocial environment of the school (B=0.18, p<.001) was significantly associated with happiness of the students. Conclusion: Positive perception of the school environment was found to increase happiness in adolescents. Therefore, efforts should be made to make classrooms, catering facilities, and health facilities a pleasant space as well as to create a school atmosphere that values health.

• 한국정보통신학회논문지
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• 제27권1호
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• pp.27-33
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• 2023

웰빙과 건강관리에 대한 관심 증가와 미세먼지로 인한 공기질의 악화, 다양한 토양 및 수질 오염으로 인해 친환경 식재료에 대한 요구가 급증하고 있다. 이와 같은 현상의 해결책으로 아쿠아포닉스가 대두되고 있다. 그러나 최적의 생육 환경을 도출하는 기법이 선행되어야 한다. 본 논문에서는 기존 아쿠아포닉스의 특성을 고려하는 지능형 식물 성장 측정 시스템을 설계하고자 한다. 특히, 지능형 아쿠아포닉스 생산관리 모듈 중 고성능의 처리 자원을 갖지 않는 생산 현장에 적합한 시스템 설계에 주안점을 두고, 균일한 생육환경을 제공하는 경우의 학습 데이터 및 판단 시스템을 위한 모듈 구성 방안을 제안하고자 한다.

• 인터넷정보학회논문지
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• 제23권6호
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• pp.15-26
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• 2022

사이버 공격을 수행하는 주체와 그 목적이 점차 다양화되고 고도화되고 있다. 과거 사이버 공격은 개인 혹은 집단의 자신감 표출을 위해 수행되었지만, 최근에는 국가 단위의 후원을 받은 정치적, 경제적 목적의 공격도 활발히 이루어지고 있다. 이에 대응하고자 시그니처 기반의 악성코드 패밀리 분류, 공격 주체 분류 등이 이루어졌지만 공격 주체가 의도적으로 방어자를 속일 수 있다는 단점이 있다. 또한 공격의 주체, 방법, 목적과 목표가 다양해짐에 따라, 공격의 모든 과정을 분석하는 것은 비효율적이다. 따라서 방어자 관점에서 사이버 공격의 최종 목표를 식별해 유연하게 대응할 필요가 있다. 사이버 공격의 근본적인 목표는 대상의 정보보안을 훼손하는 것이다. 정보보안은 정보자산의 기밀성, 무결성, 가용성을 보존함으로써 달성된다. 이에 본 논문에서는 MITRE ATT&CK® 매트릭스에 기반하여 공격자의 목표를 정보보안의 3요소 관점에서 재정의하고, 이를 머신러닝 모델과 딥러닝 모델을 통해 예측하였다. 실험 결과 최대 80%의 정확도로 예측하는 것을 확인할 수 있었다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 춘계학술발표대회
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• pp.871-874
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• 2011

The fast emerging of network technology and the high demand of computing resources have prompted many organizations to outsource their storage and computing needs. Cloud based storage services such as Microsoft's Azure and Amazon's S3 allow customers to store and retrieve any amount of data, at anytime from anywhere via internet. The scalable and dynamic of the cloud storage services help their customer to reduce IT administration and maintenance costs. No doubt, cloud based storage services brought a lot of benefits to its customer by significantly reducing cost through optimization increased operating and economic efficiencies. However without appropriate security and privacy solution in place, it could become major issues to the organization. As data get produced, transferred and stored at off premise and multi tenant cloud based storage, it becomes vulnerable to unauthorized disclosure and unauthorized modification. An attacker able to change or modify data while data inflight or when data is stored on disk, so it is very important to secure data during its entire life-cycle. The traditional cryptography primitives for the purpose of data security protection cannot be directly adopted due to user's lose control of data under off premises cloud server. Secondly cloud based storage is not just a third party data warehouse, the data stored in cloud are frequently update by the users and lastly cloud computing is running in a simultaneous, cooperated and distributed manner. In our proposed mechanism we protect the integrity, authentication and confidentiality of cloud based data with the encrypt- then-upload concept. We modified and applied proxy re-encryption protocol in our proposed scheme. The whole process does not reveal the clear data to any third party including the cloud provider at any stage, this helps to make sure only the authorized user who own corresponding token able to access the data as well as preventing data from being shared without any permission from data owner. Besides, preventing the cloud storage providers from unauthorized access and making illegal authorization to access the data, our scheme also protect the data integrity by using hash function.

• 한국컴퓨터정보학회논문지
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• 제14권9호
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• pp.147-156
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• 2009

본 연구의 목적은 언론매체 특성에 따른 요구정보 제공과 첨단교통정보의 효율적 활용, 사용자 중심의 편리한 교통정보 제공, 교통정보 유통 활성화에 기여하고자 교통정보 언론제공 연계시스템의 구축 방안을 제시하는데 있다. 이러한 목적을 달성하기 위하여 국내 외 교통정보 언론제공시스템 현황을 분석하고, 언론매체별 요구사항을 검토하여, 시스템 구축방안과 연계 제공체계를 구현함으로서 언론제공 통합연계시스템 구축방안을 제시하였다. 본 연구에서 제안된 설계는 정보이용자와 정보공급자의 필요충분조건을 중재하여 보다 다양한 교통정보를 활용 가능하게 하는 것으로 광역교통수단을 이용하는 사용자가 효율적인 공간이동 및 경제적인 이용가치를 높이도록 하였다. 언론매체를 통한 교통정보의 제공은 도로운전자에게 유용한 정보가 되며, 교통정보 언론제공으로 인한 교통량의 분산 및 교통 혼잡완화가 예상된다.

• 의학교육논단
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• 제25권3호
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• pp.198-211
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• 2023

Health systems science (HSS) is recognized as the third pillar of medical education. alongside basic and clinical sciences. Today's physicians must also be systems thinkers who are able to discern how social, economic, environmental, and technological forces influence clinical decision-making. This study aimed to propose strategies for structuring an HSS curriculum that is tailored to the Korean healthcare and medical education context. First, the authors of this study conducted a survey to identify the present curricular contents of HSS related education at Korean medical schools. Second, a needs assessment was performed to determine the necessity of HSS competencies, as well as the prerequisites for the seamless integration of HSS into the existing curriculum. Third, literature reviews on HSS education at 14 US medical schools and expert consultations was conducted. We would like to propose a set of strategic approaches, classified into two levels: comprehensive and partial restructuring of the current medical curriculum to incorporate HSS. The partial restructuring approach entails a gradual, incremental incorporation of HSS content, while maintaining the current curricular structure. In contrast, a complete overhaul of the curriculum may be ideal to build HSS as the third pillar of medical education, but its feasibility remains relatively limited. The partial reorganization approach, however, has the advantage of being highly feasible. Collaborative efforts between professors and students are imperative to collectively devise effective methods for the seamless integration of HSS into the existing curriculum.

• 지질공학
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• 제34권1호
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• pp.107-115
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• 2024

This study assesses forest fire susceptibility in Gangwon-do, South Korea, which hosts the largest forested area in the nation and constitutes ~21% of the country's forested land. With 81% of its terrain forested, Gangwon-do is particularly susceptible to wildfires, as evidenced by the fact that seven out of the ten most extensive wildfires in Korea have occurred in this region, with significant ecological and economic implications. Here, we analyze 480 historical wildfire occurrences in Gangwon-do between 2003 and 2019 using 17 predictor variables of wildfire occurrence. We utilized three machine learning algorithms—random forest, logistic regression, and support vector machine—to construct wildfire susceptibility prediction models and identify the best-performing model for Gangwon-do. Forest and soil map data were integrated as important indicators of wildfire susceptibility and enhanced the precision of the three models in identifying areas at high risk of wildfires. Of the three models examined, the random forest model showed the best predictive performance, with an area-under-the-curve value of 0.936. The findings of this study, especially the maps generated by the models, are expected to offer important guidance to local governments in formulating effective management and conservation strategies. These strategies aim to ensure the sustainable preservation of forest resources and to enhance the well-being of communities situated in areas adjacent to forests. Furthermore, the outcomes of this study are anticipated to contribute to the safeguarding of forest resources and biodiversity and to the development of comprehensive plans for forest resource protection, biodiversity conservation, and environmental management.

• 여성건강간호학회지
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• 제30권1호
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• pp.41-55
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• 2024

Purpose: This review explored the status of publications on intimate partner violence (IPV) against pregnant women in contemporary China. Methods: The PubMed, Cochrane Library, Embase, CINAHL, and PsycInfo databases were searched using the terms "IPV," "pregnant woman," "Chinese," and synonyms in English, along with related keywords for Chinese publications. All literature pertaining to IPV during pregnancy, conducted in China, and published between 1987 and September 2023 was included. Results: A total of 37 articles from 30 studies were selected. The prevalence of IPV during pregnancy ranged from 2.5% to 31.3%, with psychological violence being the most common form. Frequently identified risk factors included unintended pregnancy, poor family economic conditions, male partners engaging in health risk behaviors, poor employment status of women or their partners, low education levels among women, physical or mental health issues, strained couple relationships, and in-law conflicts. IPV during pregnancy primarily led to mental health problems for the victims and could result in adverse obstetric outcomes, as well as negative effects on the temperament and development of the offspring. Victims in China demonstrated a low willingness to seek help from professionals. Furthermore, relevant research in mainland China is scarce, with a limited number of studies and non-standardized research methodologies. Conclusion: Future research should investigate IPV in pregnancy from various perspectives, identify factors unique to IPV during pregnancy, and focus on high-risk groups. Considering the conditions in China, there is a pressing need to increase public awareness of IPV and to investigate interventions aimed at addressing this issue.

• Animal Bioscience
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• 제37권4_spc호
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• pp.719-729
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• 2024

Global pig production has increased by 140% since the 1960s. The increase in global population, coupled with improving socioeconomic conditions of many countries has led to an increased consumption of meat globally, including pork. To keep up with demand and capitalize on economic opportunities, the countries of China, the United States (US), and the European Union (EU) have become the top 3 pork producers globally. China is of particular interest, as it is the both the largest country in pork production and pig numbers, as well as being the largest importer of pork from other countries. Globally, the efficiency of pork production has improved, in relation to the integration of pig production and the dramatic increase in research efforts in pig nutrition and production. Through integration, large producers can consolidate resources and maximize profits and efficiency. The increased research interest and efforts in pig production have given scientists and producers the opportunity to collaborate to adapt to challenges and identify possible solutions to issues brought on by a volatile global market. Intestinal health (23%), general nutrition and growth (23%), and amino acid nutrition (15%) were the top 3 areas (61%) leading research trends in pig nutrition and production. Major dietary interventions with feed additives evaluated include functional amino acids, feed enzymes, pre-/pro-/post-biotics, and phytobiotics with a common goal to improve the growth efficiency by enhancing nutrient utilization and intestinal health. With increasing global issues with environment, pig producers and the supporting scientists should continue their efforts to improve the production efficiency and to reduce the environmental footprint from pig production.

• KDI Journal of Economic Policy
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• 제13권2호
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• pp.69-96
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• 1991

1987년의 민주화조치(民主化措置) 이후 발생한 임금(賃金)의 급격한, 그리고 지속적인 상승은 비용우위(費用優位)의 약화를 야기하였고 이에 더하여 3저기간(低期間)의 무역수지흑자(貿易收支黑子)는 원화(貨)의 절상(切上)을 유발하여 우리 상품(商品)의 수출단가상승(輸出單價上昇)을 증폭시켰다. 새로운 경쟁우위(競爭優位)를 발굴하는 것이 우리 경제(經濟)의 당면과제(當面課題)인바 당분간은 비용우위유지(費用優位維持)가 우리 산업(産業)의 기본경쟁전략(基本競爭戰略)이 되어야 할 것이다. 이때의 비용우위(費用優位)는 기술(技術)의 뒷받침을 통하여 제품단가(製品單價)를 낮추는 것을 의미하며 이는 과거 저임금(低賃金)에 의존하던 비용우위유지(費用優位維持)와는 다른 것이다. 구체적(具體的) 방안(方案)의 하나로 기업간(企業間) 생산분업(生産分業)의 효율적(效率的) 조직화(組織化)를 생각해 볼 수 있다. 본(本) 연구(硏究)의 목적(目的)은 기업간(企業間) 생산분업(生産分業)으로서의 하도급(下都給)이 어떠한 형태(形態)로 운영되고 있는지 그리고 최근의 경제여건변화(經濟與件變化)에 대응하여 어떠한 방향(方向)으로 진전되고 있는지를 파악해 보는 데 있다. 구체적으로 모기업(母企業)과 수급기업간(受給企業間)의 교섭력(交涉力)의 차이, 수급기업(受給企業)의 모기업(母企業)에 대한 기술력(技術力)의 기여(寄與) 정도, 대외경쟁력(對外競爭力)의 약화(弱化)에 대응한 양자간(兩者間)의 협력관계(協力關係) 형성(形成), 새로운 경쟁우위(競爭優位)를 회복하기 위한 인식형성(認識形成)과 구체적 방안(方案)에 대한 견해(見解) 등을 하도급제(下都給制) 생산방식(生産方式)에 참여하고 있는 개별기업(個別企業)들에 대한 설문조사(設問調査)를 통하여 파악해 보고자 하였다. 설문조사(設問調査)의 결과(結果)에 따르면 자동차산업(自動車産業)의 하도급(下都給)이 경쟁력회복(競爭力回復)에 긍정적(肯定的)으로 작용(作用)하고 있는 것으로 나타났다.