• 구강회복응용과학지
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• 제23권3호
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• pp.197-203
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• 2007

Statement of problem: It is very important to establish the suitable position for artificial maxillary anterior teeth and the orientation of occlusal plane in fabrication of the complete dentures. Incisive papilla has been considered the most useful anatomic landmark in the arranging of a maxillary anterior artificial teeth. Purpose: To determine correct position of upper anterior artificial teeth in complete denture patients, relationship of incisive papilla, intercanine line, occlusal plane were evaluated in Korean adults. Materials and Method: Maxillary casts were made in 60 Korean dentate subjects. Each cast was mounted in Hanau modular articulator using Hanau spring bow. Then, anatomic landmarks were determined in each cast. Distance from central incisor to incisive papilla, distance from incisive papilla to intercanine line and discrepancies between frankfurt plane and occlusal plane were measured and analysed. Results: 1. The mean distance between the posterior point of incisive papilla and the incisal edge of central incisor was 11.20 mm (in male 11.77 mm, in female 10.55 mm) and there was no significant difference in measured values between male and female 2. The mean distance between the posterior point of incisive papilla and intercanine line was 2.52 mm (Male 2.57 mm, Female 2.35 mm) and there were no significant differencies in measured values between male and female 3. The mean discripancy between the Frankfurt plane and the occlusal plane were 9. 75 degree (Male 9.81 degree, Female 9.55 degree), and there was no significant difference in measured values between left and right sides.

• 한국산학기술학회논문지
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• 제22권1호
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• pp.424-430
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• 2021

교통 신호 위반 사고는 운전자의 주장이 서로 상반되면 원인 규명이 어렵다. 본 연구에서는 사례를 중심으로 교통 사고 분석을 위해 사용하는 차량 충돌 해석 시뮬레이션 프로그램인 PC-CRASH을 이용하여 시뮬레이션을 수행하였고, 이를 통하여 교차로에서 신호 위반 차량을 규명하는 과정을 제시하였다. 첫째, 신호 위반의 원인 규명이 분명하지 않은 운전자나 목격자의 진술을 배제한다. 둘째, 사고 차량의 최종 자세, 최종위치, 파손 부위, 조향 여부, 제동 여부, 노면 흔적을 수집하고, 정지선으로부터 충돌지점까지 조사한다. 셋째, 사고 차량의 충돌 상황과 최종 정지 자세에 부합될 때까지 시뮬레이션 자료를 수정 입력한다. 넷째, 시뮬레이션 결과가 충돌 상황과 부합되면 운전자의 진술과 부합되는지 교차 검증하여 사실 규명을 입증한다. 본 연구의 시뮬레이션의 결과는 교차로 내 좌회전 신호에 렉서스는 약 55 km/h로 진입하였고 소나타는 교차로의 차량 직진 신호를 보고 72km/h로 교차로에 진입하여 렉서스와 충돌하였다. 그러므로 소나타의 신호위반으로 규명되고 소나타 운전자, 목격자, 경찰의 주장은 모순이다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.2126-2131
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• 2005

Interactions of a humanoid with a human are important, when the humanoid is requested to provide people with human-friendly services in unknown or uncertain environment. Such interactions may require more complicated and human-like behaviors from the humanoid. In this work the arm motions of a human are discussed as the early stage of human motion imitation by a humanoid. A motion capture system is used to obtain human-friendly arm motions as references. However the captured motions may not be applied directly to the humanoid, since the differences in geometric or dynamics aspects as length, mass, degrees of freedom, and kinematics and dynamics capabilities exist between the humanoid and the human. To overcome this difficulty a method to adapt captured motions to a humanoid is developed. The geometric difference in the arm length is resolved by scaling the arm length of the humanoid with a constant. Using the scaled geometry of the humanoid the imitation of actor's arm motions is achieved by solving an inverse kinematics problem formulated using optimization. The errors between the captured trajectories of actor arms and the approximated trajectories of humanoid arms are minimized. Such dynamics capabilities of the joint motors as limits of joint position, velocity and acceleration are also imposed on the optimization problem. Two motions of one hand waiving and performing a statement in sign language are imitated by a humanoid through dynamics simulation.

• 말소리와 음성과학
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• 제4권1호
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• pp.49-54
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• 2012

Recent studies on acoustic correlates of stress in English compounds and English phrases have revealed the difference of changes in acoustic manifestation between English compounds and English phrases with different intonation patterns. However, little effort has been made to compare Korean compounds and Korean phrases in different intonational environments. Therefore, this study focuses on the analysis of acoustic characteristics of Korean compounds and Korean phrases produced in different intonational sentence patterns (Subject, Question, Clause-Final, and Statement-Final). Measurements of vowel duration, intensity (dB) and pitch (in semitones) were compared. The results of the experiment in which 30 native speakers of Korean pronounced Korean compounds and Korean phrases (obtained from $8{\times}30$ sentences) in controlled prosodic and intonational environments reveal clear patterns that distinguish Korean compounds from Korean phrases and support the evidence of acoustic salience for phrases. Duration differences turned out to be a significant cue to distinguish Korean compounds and Korean phrases in all but the Clause Final position. According to the size effect, duration ratio is the most reliable cue to distinguish Korean compounds and Korean phrases followed by the pitch differences between the first syllable and the second syllable and the intensity ratio. Implications for Korean and English intonation training were also discussed.

• 패션비즈니스
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• 제22권3호
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• pp.109-121
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• 2018

Recently, it is one of the popular fashion and cultural events that people of the younger generation put on a hanbok and take a picture together with communicating by SNS. For this reason, the rent-hanbok market takes a big part of the Korean traditional costume market. Therefor, the recognition of hanbok is changed from the style of uncomfortable and ceremonial clothes, to becoming popular as everyday dress in the younger generation. The various designs of the rental hanbok show two different opinions. One is the increasing popular and general public interest and demand for wearing and showing off traditional hanbok fashions in a positive outlook. Another is the case of the wrong stereotype and knowledge for traditional costume which results in a negative outlook for this type of fashion statement. This study is to look into renting hanbok jeogori for women in Seoul and in Junju. There are 39 styles available in joegori. That being noted, the traditional jeogori has seop and git with dongjung. But it is seen that rental jeogoris do not have the seop, or have the dongjung position as similar to the Po as seen on the men's coat. The showy and colorful materials feel bad and are poorly ventilated. And excessive price competition causes a decreased quality of renting hanbok. Now the rental hanbok business needs to change; to have to make renting hanbok with the correct historical understanding, and it is necessary to have to stop the indiscriminate acceptance of foreign culture.

• ETRI Journal
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• 제28권5호
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• pp.684-687
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• 2006

In this letter, we evaluate the system performance of a space-time block coded (STBC) multicarrier (MC) DS-CDMA system over a time selective fading channel, with imperfect channel knowledge. The average bit error rate impairment due to imperfect channel information is investigated by taking into account the effect of the STBC position. We consider two schemes: STBC after spreading and STBC before spreading in the MC DS-CDMA system. In the scheme with STBC after spreading, STBC is performed at the chip level; in the scheme with STBC before spreading, STBC is performed at the symbol level. We found that these two schemes have various channel estimation errors, and that the system with STBC before spreading is more sensitive to channel estimation than the system with STBC after spreading. Furthermore, derived results prove that a high spreading factor (SF) in the MC DS-CDMA system with STBC before spreading leads to high channel estimation error, whereas for a system with STBC after spreading this statement is not true.

• 대한전기학회논문지:시스템및제어부문D
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• 제49권9호
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• pp.504-511
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• 2000

The reliability of system is to become a important concern in developed industry. The controller based on the reliability is so important position. PPC(Plant Protection Controller) is for plant protection and human life by fault detection and control action against the transient condition of plant. The protection system of the nuclear reactor and chemical reactor are representative of PPC. This paper presents analysis of PPC relaibility formal problem statement of optimal redundancy based on the reliability for PPC. And the problem is optimized by genetic algorithm, The genetic algorithms is useful algorithm in case of large searching complex gradient existence local minimum. The genetic algorithms is useful algorithm is case of large searching complex gradient existence local minimum. The ability and effectiveness of the proposed optimization is demonstrated by the target reliability of one channel. PPC. using the failure rate based on the MIL-HDBK-217

• Journal of mucopolysaccharidosis and rare diseases
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• 제2권2호
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• pp.50-51
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• 2016

Combining basal insulin therapy with a glucagon-like peptide-1 receptor agonist (GLP-1 RA) has clear clinical advantages, and is supported by the latest EASD/ADA position statement (1). IDegLira is a once-daily combination of the basal insulin, degludec, and the GLP-1RA, liraglutide, in one pen. The DUAL phase 3 clinical trial program provides important evidence about the efficacy and safety of IDegLira in three different populations of patients with type 2 diabetes (T2D): insulin naïve subjects uncontrolled on oral antidiabetic drugs (OADs), subjects uncontrolled on OAD(s) and a GLP-1 RA, and subjects uncontrolled on OAD(s) and basal insulin. Treatment with IDegLira reduced mean HbA1c to below the EASD/ADA treatment target of 7.0% in all five trials. The mean reduction of HbA1c from baseline ranged from 1.3% and 1.9%. IDegLira resulted in weight loss for subjects uncontrolled on basal insulin, was weight neutral for subjects on OADs and weight gain was minimal (2 kg) for subjects previously treated with a GLP-1 RA. Rates of hypoglycaemia were low across all the trials, particularly considering the level of glycaemic control achieved.

• 대한치과보철학회지
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• 제46권2호
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• pp.193-200
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• 2008

임플랜트 고정체의 표면처리 기술의 발달에 기인하여 골유착의 성공률이 좋아지고 있으며 임플랜트를 이용하는 보철물의 형태와 임상 술 식도 다양하게 발전되고 있다. 상악의 임플랜트 피개의치는 아직 표준화된 치료법에 대한 의견이 분분하다. 본 연구는 상악 무치악의 치료를 위하여 해부학적인 요소와 생역학적인 요소를 고려하여 양측 견치부 또는 소구치부위에 2개의 임플랜트를 식립할 때의 응력분포를 삼차원 유한요소분석을 이용하여 관찰하고자 하여 다음과 같은 결론을 얻었다. 1. 임플랜트를 양측 견치 부위에 식립한 모형에서 부하가 가해지는 우측의 임플랜트의 원심면에 최대 응력이 집중되었다. 2. 임플랜트를 양측 제2소구치 부위에 식립한 모형에서 임플랜트 주위의 응력 분포는 부하지점의 거리와 상관없이 고르게 나타났다. 3. 치조골에 발생하는 응력 분포의 관찰 결과, 임플랜트가 양측 제2소구치 부위에 식립된 모형이 양측 견치부위에 식립된 모형보다 고르게 나타났다. 이상의 결과로 볼 때, 상악 피개의치를 위한 임플랜트 식립 위치는 견치 부위에서보다 제2소구치 부위가 구강점막, 주위 골과 임플랜트에 전달되는 응력의 분포에 유리한 것으로 사료된다.

• 디지털융복합연구
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• 제12권4호
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• pp.443-454
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• 2014

본 연구의 목적은 종합병원 신규간호사의 실무적응에 대한 주관성을 유형을 파악하고자 Q방법론을 적용하였다. 연구 대상자는 종합병원 신규간호사 40명을 대상으로 개별 면담을 실시하고 Q방법론을 적용하였다. 진술문은 자신의 의견에 따라 +4점(가장 긍정하는 진술문)에서부터 0(중립) -4(가장 부정하는 진술문)을 선택하여 9점 척도상에 강제 분포하도록 하였다. 자료 분석은 PC QUANL program을 이용하였으며, 분석결과 eigenvalue 1.0이상을 가진 값을 가지고 5가지 유형이 나타났으며 변량은 62.38%이었다. : (1) 새로운 업무 부담형, (2) 흥미, 책임감형, (3) 상황개선형, (4) 지식, 기술 부족형, 그리고 (5) 과도한 업무 부담형의 5가지 유형으로 분류되었다. 이 차이점으로 보았을 때 종합병원 신규간호사의 실무적응유형을 볼 수 있었으며, 이 연구 결과 효과적인 교육과 개별화된 임상실무전략을 개발해야 할 것이다.