• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.20 no.2
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• pp.1-7
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• 2006

A light guided plate coupled with the micro Fresnel lens array(MFTA) is designed to improve the efficiency of the LCD backlight unit. Blazed Frenel lens and binary multi-level Fresnel lens are adapted for the MFLA. This type of MFLA can replace the prism sheet and diffuser sheet which are used for the conventional type of the LCD backlight unit. The luminance and uniformity are calculated to verify the performance of the MFLA type LCD backlight unit.

• Journal of Korea Multimedia Society
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• v.20 no.2
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• pp.279-288
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• 2017

Nowadays, nations cyber security capabilities play an important role in a nation's defense. Security-critical infrastructures such as national defenses, public services, and financial services are now exposed to Advanced Persistent Threats (APT) and their resistance to such attacks effects the nations stability. Currently Cyber Threat Intelligence (CTI) is widely used by organizations to mitigate and deter APT for its ability to proactively protect their assets by using evidence-based knowledge. The evidence-based knowledge information can be exchanged among organizations and used by the receiving party to strengthen their cyber security management. This paper will discuss on the business process reengineering of the CTI information exchange management for a nationwide scaled control and governance by the government to better protect their national information security assets.

• Journal of Korea Multimedia Society
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• v.20 no.11
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• pp.1768-1775
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• 2017

The SIP(Session Initiation Protocol) is an application layer call signaling protocol which can create, modify and terminate the session of user, and provides various services in combination with numerous existing protocols. However, most of cryptosystems for SIP cannot prevent quantum computing attack because they have used ECC(Elliptic Curve Cryptosystem). In this paper, we propose a NTRU based authentication and key distribution protocol for SIP in order to protect quantum computing attacks. The proposed protocol can prevent various attacks such as quantum computing attack, server spoofing attack, man-in-the middle attack and impersonation attack anonymity, and our protocol can provide user's anonymity.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1983.05a
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• pp.20-20
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• 1983

A 40-year-old man was admitted with chief complaints of sudden hearing loss, ear fullness and tinnitus of 12 days duration developed following SCUBA diving. An exploratory tympanotomy was done on 16th day of onset, and a small leakage of clear fluid was found on the anterior portion of the stapediovestibular joint, which was sealed off by small piece of fatty tissue from the ear lobe. Postoperatively, his PTA's was improved from 85㏈ to 15㏈, however high tone was remained unchanged above 4KHz. More exploration of the middle ear will be helpful to find the labyrinthine fistula causing sudden type of hearing loss.

• Archives of Craniofacial Surgery
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• v.20 no.2
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• pp.112-115
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• 2019

Linear scleroderma en coup de sabre (LScs) is a variant of localized scleroderma. This disease typically occurs in patients in their 20s or younger individuals and predominantly occurs in the forehead area. A 26-year-old man with linear scleroderma was surgically treated at our center with Medpor (porous polyethylene) and dermal fat graft for the forehead lesion. After 26 months of postoperative follow-up, the depressed lesion that appeared scarred as well as the margins improved significantly. The surgical treatment of LScs using Medpor and dermal fat graft is an effective treatment modality that can increase patient satisfaction.

• Journal of Genetic Medicine
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• v.20 no.2
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• pp.46-51
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• 2023

Exonic copy number variation (CNV), involving deletions and duplications at the gene's exon level, presents challenges in detection due to their variable impact on gene function. The study delves into the complexities of identifying large CNVs and investigates less familiar but recurrent exonic CNVs, notably enriched in East Asian populations. Examining specific cases like DRC1, STX16, LAMA2, and CFTR highlights the clinical implications and prevalence of exonic CNVs in diverse populations. The review addresses diagnostic challenges, particularly for single exon alterations, advocating for a strategic, multi-method approach. Diagnostic methods, including multiplex ligation-dependent probe amplification, droplet digital PCR, and CNV screening using next-generation sequencing data, are discussed, with whole genome sequencing emerging as a powerful tool. The study underscores the crucial role of ethnic considerations in understanding specific CNV prevalence and ongoing efforts to unravel subtle variations. The ultimate goal is to advance rare disease diagnosis and treatment through ethnically-specific therapeutic interventions.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.17-19
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• 2014

해양사고 발생 직후 2차적인 피해로의 확산을 방지하기 위한 조치로 사고선박을 안전한 장소로 이동하게 된다. 사고선박의 크기와 상태 그리고 해상조건을 고려하여 예선의 크기와 척수가 결정된다. 이 과정에서 사고선박의 선체저항을 계산하게 되는데, 기존의 이론식을 적용하여 계산하고 이에 대한 검증 단계로 예인실험을 실시하였다. 대상선박은 목포해양대학교 실습선 새유달호이며, 장력계, 외력 측정장치 등 실험장치는 실습선에 탑재하여 계측하였다. 실험장소는 목포해양대학교 인근 묘박지이며, 당시 풍속은 7m/s, 조류는 0.7m/s 전후이었으며, 횡방향 예인, 전방 2척 예인, 전 후방예인, 프로펠러고착, 예인속력의 변화 등 다양한 시나리오에 대하여 실험을 실시하였다. 장력의 계측은 예선의 예인삭을 사용하였으며, 실습선 선수미 비트에 장력계를 연결하여 측정하였고, 장력계의 최대측정 범위는 20톤을 사용하였다. 예인속력은 정지에서 3m/s까지 단계적으로 증가시키면서 해당 속력별 장력을 계측하여 속력증가에 따른 예인력을 확인하였다. 최종적으로 이론계산 결과와 실선실험 결과를 상호 비교하여 이론계산식의 유효성을 검증하였다.

• Asia Marketing Journal
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• v.22 no.3
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• pp.87-105
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• 2020

With the development of Information Technology, customers require promptly higher quality products and services. Companies try to make newly digital marketing strategies, but there are no empirical researches on them. This article empirically presents a new perspective that companies can shape the customer decision journey ahead by coordinating customer experience. In this article, based on Elaborated Likelihood Model (ELM) theory, customer experience consists of the emotional or cognitive experience. We surveyed about 200 subjects (N = 217) in their 20s and 30s based on the International Music Industry Association's Music Listening 2019 report, then analyzed four different models (before personalization-cognitive experience, before personalization-emotional experience, after personalization- cognitive experience, after personalization-emotional experience) by JASP and R Studio. We conducted Structural Equation Model (SEM) and paired t-test. Personalization factors are about recommendation systems in Spotify. The results of survey represent that companies can shape the Customer Decision Journey (CDJ) ahead especially through enhance cognitive experience. It empirically proves Elaborated Likelihood Model (ELM). The conclusion can be drawn that 'pulling' customer experience can be a new marketing strategies in the digital era.

• Journal of Acupuncture Research
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• v.20 no.1
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• pp.244-253
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• 2003

Objective : Interferon-alpha and Rivabirin are much used at the same time to treat Chronical C viral hepatitis. But interferon caused lots of unexpected side effects, Acupuncture Treatment for them will be an alternative plan. Methods : We first posed questions to a 4 year-old man who ha skin flare, fatigue, itching, insomnia, pronounced a diagnosis based on overall of symptoms and signs and then treated Acupuncture, Moxibustion and Electroacupuncture. We acupunctured a BL17, BL18, BL20 and removed it at once. We electroacupunctured at GV20, Yin tang(Ex-HN3) form 20 minutes, acupunctured at Bi yi(鼻翼, Extra-point), S36, P6. Pizhengge(脾定格) was acupunctured for 10 minutes. Results : The symptoms of fatigue, insomnia, itching are reduced after acupuncture treatments and they made a person keep interferon treatment on. Conclusions : We confirmed that acupuncture treatments make a patient of chronic C viral hepatitis reduce and improve side effects of interferon treatment. We should keep on studying the various and efficient method of acupuncture treatment to improve living quality and treatment efficiency of patients.

• Journal of the Korean Society of Fashion and Beauty
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• v.3 no.1 s.4
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• pp.1-12
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• 2005

The purpose of this thesis is to study the formative characteristics and symbolism shown in Rock stars' hairstyles through rock music to have influenced youth culture. There were a D.A style and a mop top style which included the youth characteristic to seek a new desire and value as the hairstyles of Rock & Roll stars, along with the characteristics of Rock & Roll music to represent the feeling of teenagers in 1950's at that time unlike the previous music due to high beats mixed with Rhythm & Blues (R & B) and Country music, and use of electronic guitars. We can see the desire for challenge and freedom against the then present regime, shouting love and peace, and resistance in the Psychedelic Rock music stars' hairstyle, which are untrimmed and disheveled, that is, natural. We can find explosiveness in Mohican and Spike style of Punk Rock stars playing fierce and aggressive music, along with words including indignation and assertion against the society's regime. The Artistic characteristic is implied in the following hairstyles: Glam Rock stars' hairstyle, a man's long-haired but a little long crew-cut style to reduce the bulky feeling and to give a bisexual, visible shock with hair dyed in orange to emphasize magnificence, and Punk Rock stars' hairstyle showing beauty in their own way with expression of anti-beauty to intentionally look ugly. Like this, the 20th Century's Rock music and youth culture are closely associated each other, and showed a new style, and played a leading role in street fashion, which became a momentum to much influence high fashion as a look of the 20th century modern fashion.