• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2004년도 추계학술대회논문집
• /
• pp.65-69
• /
• 2004

The small form factor optical data storage devices are developing rapidly nowadays. Since it is designed for portable and compatibility with flash memory, its components such as disk, head, focusing actuator, and spindle motor should be assembled within 5 m thickness. The thickness of focusing actuator is within 2 mm and the total working range is $+/-100{\mu}m$, with the resolution of less than $1{\mu}m$. Since the thickness is limited tightly, it is hard to place the yoke that closes the magnetic circuit and hard to make strong flux density without yoke. Therefore, Halbach array is adopted to increase the magnetic flux of one side without yoke. The proposed Halbach array type focusing actuator has the advantage of thin actuation structure with sacrificing less flux density than conventional magnetic array. The optical head unit is moved on the swing arm type tracking actuator. Focusing coil is attached to swing arm, and Halbach magnet array is positioned at the bottom of deck along the tracking line, and focusing actuator exerts force by the Fleming's left hand rule. The working range and resolution of focusing actuator are analyzed with FEM and experiment.

• 한국컴퓨터정보학회논문지
• /
• 제24권1호
• /
• pp.67-71
• /
• 2019

With continued technology innovation in the fields of computer graphics (CG) and virtual reality (VR), digital animated avatars (or virtual humans) are evolving into ones that are more interactive at a suitable location such as museum, airport, and shopping mall. Specially, the form of the avatar (or the virtual human) realistically need to be expressed in a way that matches the users' physical space. In recent many researches, the form of virtual human has been expressed as mixed-reality human (MRH)-the virtual human combines with the physicality as the real part. In this paper, we propose to carry out a study comparing various MRH on co-presence and emotional response in two-typed virtual humans depending on how many actual parts are included: (1) (Level 1) small parts in the virtual human combined virtual components (e.g., the head only) and (2) (Level 2) large parts in the virtual human with the physicality as the real part such as head, arms, and upper body). We report on the implemented results of our virtual humans and experimental results on co-presence and emotional response.

• 동아시아식생활학회지
• /
• 제25권4호
• /
• pp.549-564
• /
• 2015

This study was conducted on the head family house of Panseogong coterie of Andong Kwon clans in Daksil village, Bongwha gun, Kyungbuk: historical sources survey and field visit over four rounds were conducted from March to June 2014. In-depth interview, storytelling, and nutrition facts were used as methods of research using 49 participants, and the potentials of trend goods were the main purpose of this research. The specialties of bongwha prefecture in the Chosun Dynasty were pine nut, manna lichen, ginseng, sweetfish, and wild honey. Ritual food bulcheonwi's offerings a feature in Choongjae Kwonbeol's head family - were sacred wine, me, gang, otang, myun, myunjeok, pyunjeok, pyunchung, pyun, po, chungpomook, dojeok, sookchae, ssam, chimchai, sikhye, chogwa, silgwa, soojunggwa, etc. The ritual foods of bulcheonwi's head family house Choongjae Kwonbeol were commercialized through storytelling. Choongjae Kwonbeol's ritual ceremonies, recognized for their national royalty, were reorganized as the traditional Korean table settings, so that the Korean people could easily access them. The special meal called "Geumgyeporansang" represented the head family house foods' essence to share and serve others through the Dacshil village's natural beauty, Bonghwa's local ingredients, and festivities after the "Chungjae Gwunbal Bulchun" rituals. The ritual foods called "Cheongamjungsang", utilizing "Chungjae Gwunbal Bulchun" rituals, were represented in the form of a lunch box: such foods illustrate the classical scholar's mindset that enjoys the nature and arts through education and virtue.

• 복식
• /
• 제37권
• /
• pp.47-69
• /
• 1998

The purpose of this study is to inquire the hair, head-dress and clothing(upper clothing: Veil, Samkaksika, Sash) of Bodhisattvas in Dunhuang Mogaoku of the period from Northern Liang Dynasty(421∼439) to Tang Dynasty(618∼907). The method of this figure and the change of clothing form : 'Dunhuang Mogaoku'1st Volume-4th Volume. The Bodhisattvas' hair style are somehat various ; A part in her hair, Suibal, Gae, Sakbal. A part in Bodhisattvas's hair is observed from Northern Liang Dynasty to Sui Dynasty. But Suibal had been continuous succeeded. Meanwhile, in the periods of Sui and Tand Dynasty, there were the hair styles whose ends were curled up. It is called Eulle Meor-ee. Especially, in Tang Dynasty various styles of Gae were appeared. Doogun was observed from Northern Wei to Tang Dynasty. There were three kinds of head-dress; Samsikkwan(having 3 decoration), Bokwan and Jungmeunkwan(appeared in Tang Dynasty). Meanwhile, Sash let was become more and more decorative. The Upper clothing can be classify into Veil, Samkaksika, Sash, etc. Veil were observed in every period but X shaped one was form Northern Wei and U shaped one was from Northern Zhou Dynasty. After the period of Sui Dynasty U shaped Veil become prevalent. Samkaksika was observed for the first time in Northern Zhou Dynasty. Cutted sam-kaksika was appeared in Sui Dynasty and succeeded to Tang Dynasty. Poncho tyed Samkaksika was also observed in Tang Dynasty. In Westhern Wei Dynasty. daesupo was used into outter garment, which us that chinese influence was deep tell. Sash showed up in Tang Dynasty and it is used for Veil for the whole period of the Dynasty. But using sash for veil was formally hanged on going the lated period of Tang Dynasty. We can observe the sun-moon decoration and the wings of a bird decoration at the Bokwan, Veil, Samkaksika and Sash, etc. It is was the influendce of Sasan Per-sia and India. I will fill up the insufficency of this study wity continous research of ornament(Muktahara) and skirt of Bodhisattva and deeper inquiry of the relationship around the many countries.

• 건축역사연구
• /
• 제23권5호
• /
• pp.7-22
• /
• 2014

It is identified that an initial person who built of 'Seoul Gyedong Modernized Hanok(former Min Hyeong-gi house)' used as 'Bukchon Culture Center' in present, was not Min Hyeong-gi, but his wife, Yu Jin-gyeong, and she built it when 8 years went on after his death(1879~1973), and the construction year was at the gate of Chuseok in 1921. Yu Jin-gyeong was Head Family's Eldest Daughter-in-law in family of Yeo Heung-min who was an influential person at the late Joseon Dynasty and was widow who had only son for 3 generations. And she built this house and moved to gain daughter and live futher grandchilds together in law in new nest. It is arranged that an annex surrounds with main building as the central figure. And this house emulates Yeonkeong-dang in backyard of the Changdeok Palace for 'preservation of main building' and Chim-bang-ga-toe applied on a bedroom in a palace is applied around nobleman family's the main room. It is rare case and expresses that a palace factor is borrowed. Yu Jin-gyeong's house is that a tradition Hanok is adjusted closely in city and central and basing mode as 'protective bedding' and building concept as 'a noble and protective architecture' is realized. So it has a character that development of Hangrang architecture is appeared and Head Family's Eldest Daughter-in-law widow of modern upper class had a special benefit. As well as, a meaning that it is experimental house based on tradition and is build of Hanok with housekeeping as the central figure for appear a form which has minimal Hangrang for housekeeping in yangban family of modern city, can be found.

• Journal of Trauma and Injury
• /
• 제22권2호
• /
• pp.128-133
• /
• 2009

Purpose: Bicycle riding is a healthy and cheap form of transportation and a popular form of recreation. This study aims to evaluate the epidemiology and the factors affecting the severity of bicycle-related injuries and to find effective methods for preventing injuries. Methods: This is a retrospective study of the patients'characteristics, the injury severity, the injury location, the effect of safety equipment on the bicycle injury based on information collected through the NEDIS (National Emergency Department Information System) from 1,284,429 patients who visited 55 emergency rooms nationwide. Results: During the research period throughout 55 emergency rooms 5,671 patients were seen because of bicycle injuries. The male-to-female ratio was 3.1:1, the median age 28 years old, and 42.6% of the patients were younger than 20 years old. Injury sites were mostly in the extremities(46.7%), the head(32.4%), and the face(14%), and 70.3% of severely injured patients had accompanying head trauma. Males aged 65 and older was possibly associated with severe head trauma. Of the patients who provided helmet information 4.8%(71patients) used helmets, and 95.2%(1392 patients) did not. In this group of patients providing helmet information, none of those wearing helmets died, but 0.4% of those not wearing helmets died. Conclusion: In this study, most bicycle injuries occurred in young adult men. From now, there seems to be a need for more effort on publicity activities on bicycle injuries and on the education of children and teenagers, who show a high incidence rate, and of senior citizens (over 65 years old) who show a high severity rate, about using a safety helmet to reduce the severity of injury.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 2006년도 정기 학술대회 논문집
• /
• pp.813-819
• /
• 2006

The state of the art for the design of swing ann actuators for optical disc drives is to obtain the high efficient dynamic characteristics, especially for the small size for the mobile information devices, It is affected by the need of consumers who wants the portable digital storage devices maintaining highly functional and removable characteristics of the optical disk drive (ODD). As a necessary consequence, the need of the small form factor (SFF) storage device has been considered as an important part in the information storage technology. In this paper. we suggest a new conceptual miniaturized swing arm type actuator that has high efficient dynamic characteristics as well as satisfies the sensitivity and the heat emission requirements for the SFF-ODD. It also uses a tracking electromagnetic (EM) circuit for a focusing motion. Due to the size constraint, the thermal problem of optical head arises; therefore, we design an efficiently heat emitted structure for the actuator.

• 한국소음진동공학회:학술대회논문집
• /
• 한국소음진동공학회 2004년도 추계학술대회논문집
• /
• pp.227-231
• /
• 2004

Technological advance in information technology has sparked the necessity of small form factor (SFF) optical disk for mobile devices. Small form factor optical disk is highly anticipated to be a next generation storage device because it can be used for a cost-effective way compared with solid state memory. For the application to the 5 mm height small-form-factor optical disk drive, we have presented an optical flying head and swing arm actuator. In this study, we propose a small 1-axis actuator for compensating ficus error and SA due to the variation of cover-layer thickness in the cover-layered small optical disk. The main design issues of the 1-axis actuator are the realization of compact structure and the new support structure of the actuator: Finally, the compensating principle and performance of the 1-axis actuator will be explained.

• 대한두경부종양학회지
• /
• 제17권2호
• /
• pp.169-173
• /
• 2001

Objectives: The p53 tumor suppressor gene encodes a nuclear transcription factor that is critical regulator of cell growth and proliferation through its action in cell-cycle checkpoint control. The wide variety of stressful stmuli which include DNA damage, hypoxia, heat shock, metabolic changes activate the p53 protein, which in turn drives a series of events that culminate either in cell cycle arrest or apoptosis. Mutations of the p53 gene is the most common genetic alteration in human cancer. This gene is altered in approximately 40-60% of head and neck cancers. Whereas the wild-type form of the p53 protein plays a central role in cell-cycle control in response to DNA damage, most of the mutant forms are unable to do so. The high levels of p53 protein expression in tissues are related to the increased cellular proliferative activity and may be associated with the poor clinical outcome. To determine whether the expression of the p53 protein has prognostic significance and is associated with patterns of treatment failure in head and neck squamous cell carcinoma (HNSCC), We analyzed p53 overexpression in 40 cases of HNSCC. Materials and Methods: Immunohistochemical analysis with a monoclonal antibody (DO7) specific for p53 protein was used to detect expression of the protein in formalin-fixed, paraffin-embedded tumor samples from 40 HNSCC. We evaluated p53 protein expression and analyzed the relationship between the p53 overexpression and age, sex, primary tumor site, stage, survival rate, recurrence. All reported P values resulted from two-sided statistical tests. Results: Overexpression of p53 was detected in 20 cases(50%) among 40 cases of HNSCC. The p53 overexpression was not associated with age, sex, primary tumor site, stage, recurrence and survival rate. Conclusions: In our results, p53 was not significant prognostic factor in HNSCC. Based on many previous studies, It is evident that p53 has a certain role in tumorigenesis of HNSCC. So, the further study is needed to evaluate the prognostic significance of p53 in HNSCC.

• 한국습지학회지
• /
• 제16권3호
• /
• pp.403-409
• /
• 2014

수질오염총량관리 대상물질로 총 유기탄소(Total Organic Carbon, TOC)항목의 적용을 검토 하고 있는 가운데 이 항목에 대한 가축분뇨의 발생 및 배출 원단위 확보가 시급한 실정이다. 따라서 본 연구에서는 가축 분뇨 중 수질오염 기여도가 가장 높은 것으로 알려진 양돈 분뇨에 대해 TOC를 포함한 원단위를 산정하였다. 4대강 수계의 56개 농장을 대상으로 수계별, 사육방식별, 축사의 형태 및 규모별 양돈 분뇨의 농도, 분뇨 발생량(세척수 포함) 및 부하를 산정하였다. 분뇨 발생량은 한강수계와 낙동강수계에서 모돈 사육이 밀집된 소규모 농장 내 스크래퍼 형태의 축사에서 많은 것으로 나타났고, 양돈분뇨 발생량은 전체 수계 평균 7.4 L/두/d로 나타났다. 평균 발생 농도는 TOC가 16,037 mg/L, BOD가 10,559 mg/L, TN이 4,145 mg/L, TP가 503 mg/L로 조사되었으며, 이때 발생 부하는 TOC가 117.1 g/두/일, BOD가 77.1 g/두/일, TN이 34.7 g/두/일 그리고 TP가 3.67 g/두/일로 도출되었다.