• The Transactions of The Korean Institute of Electrical Engineers
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• v.65 no.1
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• pp.128-134
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• 2016

IoT devices including smart devices are connected with internet, thus they have security threats everytime. Particularly, IoT devices are composed of low performance MCU and small-capacity memory because they are miniaturized, so they are likely to be exposed to various security threats like DoS attacks. In addition, in case of IoT devices installed for a remote place, it's not easy for users to control continuously them and to install immediately security patch for them. For most of IoT devices connected directly with internet under user's intention, devices exposed to outside by setting IoT gateway, and devices exposed to outside by the DMZ function or Port Forwarding function of router, specific protocol for IoT services was used and the devices show a response when services about related protocol are required from outside. From internet search engine for IoT devices, IP addresses are inspected on the basis of protocol mainly used for IoT devices and then IP addresses showing a response are maintained as database, so that users can utilize related information. Specially, IoT devices using HTTP and HTTPS protocol, which are used at usual web server, are easily searched at usual search engines like Google as well as search engine for the sole IoT devices. Ill-intentioned attackers get the IP addresses of vulnerable devices from search engine and try to attack the devices. The purpose of this study is to find the problems arisen when HTTP, HTTPS, CoAP, SOAP, and RestFUL protocols used for IoT devices are detected by search engine and are maintained as database, and to seek the solution for the problems. In particular, when the user ID and password of IoT devices set by manufacturing factory are still same or the already known vulnerabilities of IoT devices are not patched, the dangerousness of the IoT devices and its related solution were found in this study.

• Korean Journal of Agricultural and Forest Meteorology
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• v.22 no.3
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• pp.128-134
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• 2020

The daily gridded meteorological information and climatology with high resolution (30m and 270m) was produced from 94 Automated Surface Observing System (ASOS) of Korea Meteorological Administration (KMA) for the past 50 years (1971-current) by different downscaling methods. In addition, the difference between daily meteorological data and the mean state of past 30 years (1981-2010) was calculated for the analysis of climate change. These datasets with GeoTiff format are available from the web interface (https://agecoclim. agmet.kr). The performance of the data is evaluated using 172 Automatic Weather S tation (AWS ) of Rural Development of Administration (RDA). The data have biases lower than 2.0, and root mean square errors (RMSE) lower than 3.8. This data may help to better understand the regional climatic change and its impact on agroecosystem in S outh Korea.

• Safety and Health at Work
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• v.8 no.4
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• pp.398-401
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• 2017

Background: Organizational ostracism is defined as a violation of norms that we are suggested to acknowledge at the workplace. It results in the exclusion of one person or multiple persons, and causes damage to our innate need to belong. This kind of behaviorism can be engaged through a hierarchical or nonhierarchical relationship. Three elements interact in the framework of organizational ostracism: the actor, the target, and the institution. Our aim was to describe the different factors interacting with every element in order to produce recommendations targeting to prevent the occurrence of such behaviorism in an institution and to help targets of such a violence in order to handle this situation and go forward. As psychological impact of ostracism has frequently been studied in the literature, we focused on its impact on professional tasks. Methods: We performed a questionnaire-based study about organizational ostracism. This questionnaire was established through an online platform (https://www.sondageonline.com) and made available through the following link: https://goo.gl/forms/KrkVXe3bMEc79cau2. A keyword was sent to all participants. We created a 23-interrogation questionnaire with open and short questions. Nonwritten consent was obtained from all participants. Results: The actor of ostracism engaged in ostracism, in most of the cases, with other persons without a real purpose. The actor of ostracism had an antecedent of problematic relationship at work in 82.9% of the cases. Of the participants, 58.5% were of the view that ostracism aimed to cause hurt and isolate them. Professional isolation was observed in 58.5% of the cases; 51.2% of the participants tried to improve their work potential and explained their reaction by an intrinsic motivation. The organization atmosphere was judged to be bad in most of the cases. Conclusion: Our study showed that ostracism was mainly observed in public practice.

• Journal of Korean Medicine Rehabilitation
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• v.33 no.1
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• pp.61-75
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• 2023

Objectives The purpose of this study is to find out what diseases or treatments the Korean Medicine Rehabilitation department is dealing with. Methods For data collection, papers published from 2012 to 2021 were searched and collected on the website of the Korean Society of Rehabilitation Medicine (https://www.ormkorea.org/). After that, reconfirmed data at the Oriental Medicine Advanced Searching Integrated System (OASIS) Traditional Medicine Portal (https://oasis.kiom.re.kr/). The searched papers were classified by year and classified according to format based on thesis and abstract. In addition, the papers were classified by subject, focusing on diseases and treatments. Results Total 557 studies were classified. The format of a total of 557 papers was distributed in 129 preclinical studies (23.2%), 136 literature studies (24.4%), 153 clinical studies (27.5%), 112 case reports (20.1%), and 27 other studies (4.8%). While preclinical studies and clinical studies are gradually decreasing over the years, case reports and literature studies are gradually increasing. Conclusions The number of papers in Journal of Korean Medicine Rehabilitation is gradually decreasing. Papers on more diverse topics is needed for the qualitative growth of journals and Department of Korean Medicine Rehabilitation.

• KIPS Transactions on Software and Data Engineering
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• v.13 no.1
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• pp.17-27
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• 2024

Video frame interpolation is an important technique used in the field of video and media, as it increases the continuity of motion and enables smooth playback of videos. In the study of video frame interpolation using deep learning, Kernel Based Method captures local changes well, but has limitations in handling global changes. In this paper, we propose a new U-Net structure that applies feature map differentiation and two directions to focus on capturing major changes to generate intermediate frames more accurately while reducing the number of parameters. Experimental results show that the proposed structure outperforms the existing model by up to 0.3 in PSNR with about 61% fewer parameters on common datasets such as Vimeo, Middle-burry, and a new YouTube dataset. Code is available at https://github.com/Go-MinSeong/SF-AdaCoF.

• CELLMED
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• v.6 no.3
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• pp.19.1-19.3
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• 2016

Jindo Ssitgimgut has been known as a funeral ritual for a long time in Korea. However, there is no study for music therapy on anxiety disorder. The aims of this study were to argue that Oral sound Daseureum of Jindo Ssitgimgut may have meaningful effect on anxiety disorder. Jindo Ssitgimgut is literally a cleansing soul. Jindo Ssitgimgut is designated as the Intangible Cultural Property No. 2 by the Korean government. Jindo Ssitgimgut is transmitted from generation to generation, not the descent of God. So, the accent is on art and one's sincere sympathy. So, with careful listening Youtube, this music Daseureum exhibits an exquisite balance between the human voice and the sounds do the instruments. The author think a good combination of his voice, Jing (Korean gong), and Ajaeng (Korean cello) can help with anxiety disorder.

• Review of KIISC
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• v.28 no.5
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• pp.26-30
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• 2018

사물인터넷 서비스는 다양한 기능과 성능을 갖는 디바이스와 게이트웨이, 플랫폼, 서비스가 서로 상호 연동/통신함으로써 실현된다. 해당 서비스의 안전성 및 신뢰성을 보장하기 위해선 서비스 각 구성 요소에 적절한 보안 기술이 필요하다. 서비스 및 API 수준에서는 OpenID-connect, OAuth2, SAML, XACML과 같은 인증/인가, 접근 제어 기법이 필요하며, 플랫폼 및 프로토콜 수준에서는 MQTT, CoAP, HTTPS, RSPF 프로토콜 및 보안 절차가 필요하다. 한편, 이들 보안 기술은 공통적으로 TLS/DTLS 보안 프로토콜을 사용한다는 특성을 가진다. 이에, 본 논문에서는 사물인터넷의 디바이스, 게이트웨이, 플랫폼에서 손쉽게 사용될 수 있도록 TLS/DTLS 보안 칩 개발 사례를 소개하고 이를 TLS 오픈 소프트웨어 스택인 mbedTLS와의 연동 사례를 소개함으로써 사물인터넷 구성 요소에 공통적으로 활용 가능한 보안 기술 구현 사례를 살펴본다.

• CELLMED
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• v.6 no.4
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• pp.25.1-25.2
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• 2016

The purpose of this study is to examine Ssukdaemeori of Chunhyangga may have effect on depression for music therapy. Ssukdaemeori of Chunhyangga, one of the five surviving stories of pansori (a long epic song), is a touching, sad song in Han Ak (Korean music, 韓樂). In this paper, the author reports on the very sad song, Ssukdaemeori. While listening to the song, Koreans feel the same amount of despair when Ssudaemeori's heroine, Chunhyang, cries out in hopelessness and grief. The author argues that Koreans get to see the saddest parts of themselves reflected back at them in the sorrowful sight of the heroine. It is also believed that Ssukdaemeori has contributed to the healing of Koreans' indignation and pain. For example, depression is currently a social problem. However, listening to sorrowful music like Ssukdaemeori can have a good effect on people feeling sad and depressed.

• Genomics & Informatics
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• v.6 no.1
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• pp.50-53
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• 2008

We have released five Java Application Programming Interface (API) packages for viewing three-dimensional structures of proteins from the Protein Data Bank. To this end, the user interface of an earlier version has been refactored in an object-oriented fashion, in which refactoring is the process of changing a software system to improve its internal structure, without altering the external behavior. Various GUI design and features have been provided conveniently thanks to the Model-View-Control (MVC) model, which is an architectural pattern used in software engineering. Availability: The source code and API specification can be downloaded from https://sourceforge.net/projects/j3dpsv/.

• CELLMED
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• v.6 no.2
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• pp.8.1-8.2
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• 2016

The purpose of this article is to argue that Arirang, Korean traditional music, could be used for healing purposes for Koreans. Music may be a medicine for curing both the body and mind. That is the soul of folksong. Arirang is a representative folksong in Korea. Koreans thought that listening to Korean traditional songs and singing them have healing powers because it makes people happier. When Koreans listen to Arirang, slowly as if they are mass hypnotized, Koreans calmed down because they think of mother's bosom while listening to Arirang. Also, Koreans find comfort in listening and singing to Arirang. The song's tune is catchy and its lyrics are moving. The song of Arirang was sung from long ago by Koreans. Therefore, it will continue forever as long as Koreans exist.