• 디지털콘텐츠학회 논문지
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• 제15권1호
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• pp.69-76
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• 2014

본 연구에서는 증강현실 기술을 이용한 사용자 상호작용 기술을 이용하여 터치기반의 게임 시스템을 제안한다. 증강현실 기술은 실세계의 영상에 가상의 객체(이미지, 영상, 텍스트)를 합성하는 기술로서 사용차가 쉽게 인지할 수 있는 장점이 있다. 증강현실 기술은 다양한 분야에서 적용 활용하기 위해서 연구되고 있다. 마커기반과 자연마커 기반의 연구가 진행되고 있는데 자연마커 기반의 연구가 현실에 이질감이 없어서 많이 연구되고 있다. 본 논문에서도 자연마커 기반의 증강현실 기술을 이용하여 게임 시스템을 구현하였다. 또한 시스템에서는 사용자의 터치를 통한 상호작용 기술을 사용함으로서 게임에 몰입할 수 있는 장점이 있다. 터치 기반의 인터페이스는 일반 사용자 환경뿐만 아니라 터치패드나 스마트폰 등의 모바일 기기에서도 활용 가능하다.

• 복식
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• 제30권
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• pp.167-181
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• 1996

Towards the second half of 20th century the fashion market has become increasely fragmented reflecting the pluality of cultures. As a result style no longer had time to accrue individuality and so people lost interest. In the aftermath of this fashion has turned its atten-tion to its materials for inspiration and inno-vation. Taking their inspiration for new working designers have began to explore diverse materials and expressive techniques of tex-ture. Textural expression can change the im-age of a garment even on with the same structural design. This study is to present the crinkle express-ive technique of texture through the applied examples in contemporary fashion and related backgrounds. The result of this study testified the import-ance of texture as plastic element through various techniques of crinkle; 1) creasing technique is reminiscent of the delphos of Fortuny by modern materials 2) twisting tech-nique is that finished garment is twisted and crumpled by hand 3) shirnking technique is recreated method that is crushed and tied for granting the human touch to the material.

• Journal of Gastric Cancer
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• 제3권3호
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• pp.128-133
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• 2003

Purpose: The benefits of the 'no-touch' isolation techniquethat is usually performed to prevent the circulation of tumor cells are not evident. The aim of this study was to determine whether the no-touch isolation technique for treating gastrointestinal cancers could prevent the circulation of tumor cells detected by reverse transcriptase polymerase chain reaction (RT-PCR). Matrials and Methods: By using RT-PCR to amplify mRNAs for two specific epithelial markers, carcinoembryonic antigen (CEA) and cytokeratin 20 (CK-20), we examined 34 gastric cancer patients who had been histologically diagnosed and 22 patients had undergone serosal and peritoneal brushing. Results: In 10 ($29.4\%$) of the 34 gastric cancer patients, we detected CK20 mRNA before manipulation, and in 17 ($51.5\%$) of those patients, after we detected it. The density of the CK20 mRNA band was increased in 11 cases ($33.3\%$) and the density was decreased in 2 cases ($6.1\%$). In 16 ($48.5\%$) of the 34 gastric cancer patients, we detected CEA mRNA before manipulation, and in 17 ($51.5\%$) patients after we detected it. The density of the CEA mRNA band was increased in 8 cases ($24.2\%$) and decreased in 3 cases ($9.1\%$). Conclusion: These result suggest that the ' no-touch isolation technique ' might be useful when operating on advanced gastric cancer patients and that serosal or Douglas pouch brushing can be used to determine the status of micrometastasis.

• Korean Journal of Radiology
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• 제22권12호
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• pp.1974-1984
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• 2021

Objective: This study aimed to compare the efficacy between no-touch (NT) radiofrequency ablation (RFA) and conventional RFA using twin internally cooled wet (TICW) electrodes in the bipolar mode for the treatment of small hepatocellular carcinomas (HCC). Materials and Methods: In this single-center, two-arm, parallel-group, prospective randomized controlled study, we performed a 1:1 random allocation of eligible patients with HCCs to receive NT-RFA or conventional RFA between October 2016 and September 2018. The primary endpoint was the cumulative local tumor progression (LTP) rate after RFA. Secondary endpoints included technical conversion rates of NT-RFA, intrahepatic distance recurrence, extrahepatic metastasis, technical parameters, technical efficacy, and rates of complications. Cumulative LTP rates were analyzed using Kaplan-Meier analysis and the Cox proportional hazard regression model. Considering conversion cases from NT-RFA to conventional RFA, intention-to-treat and as-treated analyses were performed. Results: Enrolled patients were randomly assigned to the NT-RFA group (37 patients with 38 HCCs) or the conventional RFA group (36 patients with 38 HCCs). Among the NT-RFA group patients, conversion to conventional RFA occurred in four patients (10.8%, 4/37). According to intention-to-treat analysis, both 1- and 3-year cumulative LTP rates were 5.6%, in the NT-RFA group, and they were 11.8% and 21.3%, respectively, in the conventional RFA group (p = 0.073, log-rank). In the as-treated analysis, LTP rates at 1 year and 3 years were 0% and 0%, respectively, in the NT-RFA group sand 15.6% and 24.5%, respectively, in the conventional RFA group (p = 0.004, log-rank). In as-treated analysis using multivariable Cox regression analysis, RFA type was the only significant predictive factor for LTP (hazard ratio = 0.061 with conventional RFA as the reference, 95% confidence interval = 0.000-0.497; p = 0.004). There were no significant differences in the procedure characteristics between the two groups. No procedure-related deaths or major complications were observed. Conclusion: NT-RFA using TICW electrodes in bipolar mode demonstrated significantly lower cumulative LTP rates than conventional RFA for small HCCs, which warrants a larger study for further confirmation.

• 대한인간공학회지
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• 제30권5호
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• pp.589-595
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• 2011

Objective: This study compares two visual occlusion methods for the evaluation of in-vehicle interfaces. Background: Visual occlusion is a visual demand measuring technique which uses periodic vision/occlusion cycle to simulate a driving(or mobile) environment. It has been widely used for the evaluation of in-vehicle interfaces. There are two major implementation methods for this technique: (1) occlusion using PLATO(portable liquid crystal apparatus for tachistoscopic occlusion) goggles; (2) occlusion using a software application on a touchscreen device. Method: An experiment was conducted to examine the visual demand of an in-vehicle interface prototype using the goggle-based and the touchscreen-based occlusion methods. Address input and radio tuning tasks were evaluated in the experiment. Results: The results showed that, for the radio tuning task, there were no significant differences in total shutter open time and resumability ratio between the two occlusionconditions. However, it took longer for the participants to input addresses with the touchscreen-based occlusion. Conclusion & Application: The results suggest that touchscreen-based method could be used as an alternative to traditional, gogglebased visual occlusion especially in less demanding visual tasks such as radio tuning.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제7권5호
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• pp.127-136
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• 2018

이 논문에서는 스마트폰에서 사용자 인증 프로토콜에 머신러닝을 사용하는 기법을 제안한다. 우리가 제안하는 기법은 사용자가 PIN을 입력할 때, PIN 뿐만 아니라 추가적으로 스크린을 터치하는 시간 간격 및 위치를 인증 정보로 수집하여 식별자로 사용하는 기법이다. 먼저 사용자 등록 단계에서 다수의 사용자 터치 시간 및 위치 데이터를 수집 한 다음, 그 데이터로 머신러닝을 이용하여 모델을 제작한다. 그리고 사용자 인증 단계에서 사용자가 입력한 PIN을 비교하고, PIN이 일치하면 사용자의 터치 시간 및 위치 데이터를 모델에 입력하여 기존에 수집한 데이터와 거리를 비교하여, 그에 따라 인증 성공 여부가 결정된다. 우리는 사용성 실험과 보안성 실험을 통하여 이 기법을 사용하는데 큰 불편이 없다는 것(FRR : 0%)과, 이전의 사용되고 있던 PIN 입력 기법보다 안전하다는 것(FAR : 0%)을 보였고, 그에 따라 충분히 사용될 수 있는 기법이라는 것을 확인하였다. 또한 숄더 서핑 공격 실험을 통하여 PIN이 유출되어도 보안 사고가 발생하기 힘들다는 것(FAR : 5%)을 확인하였다.

• 한국운동역학회지
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• 제25권1호
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• pp.1-10
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• 2015

Objective : The purpose of this study was to find some kinetic variable's relationships between personal records and low records in female high jump. Methods : Collected data of the subjects(N=8, ages: $25.5{\pm}1.85$, height: $173{\pm}5.83$, mass: $54.75{\pm}6.36$ personal record: $1.71{\pm}0.04$, low record: $1.62{\pm}0.03$) were used for the last three strides and take-off phase. Five video cameras set in 30frames/s were used for recording. After digitizing motion, the Direct Linear Transformation(DLT) technique was employed to obtain 3-D position coordinates. The kinematic and kinetic factors of distance, velocity, angle, impulse, jerk variables were calculated. A paired t-test was applied for the difference of variables between personal records and lower records and for correlation with performances and variables. The significance level was accepted at p<.05. Results : There was no relationship between pattern of stride and performance. However, rate of change of velocity was related with cental of mass height(CMH) at peak point(PP). Knee, hip, backward lean, foot plant, approach and take off angle showed no difference between best record and low record. Vertical impulse momentum also showed no difference between performances. Conclusion : According to a t-test result, there were significant differences in CMH at PP and jerk at touch down between best record and low record.

• 종양간호연구
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• 제1권2호
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• pp.180-190
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• 2001

The purpose of this study is to compare the sexual behaviors of breast cancer survivors (BCS) with women without breast cancer (WWBC) and provide basic data to develop education program for patients before surgery. The study sample included 215 subjects: 140 women without breast cancer and 75 women diagnosed at least six months previously with breast cancer. Data were collected using the Wilmoth's Sexual behaviors Questionnaire-F that consisted of 50 items measuring sexually: communication, sexual techniques, sexual responses, body scare, self-touch, relationship quality, and masturbation. All items were scored on a 6-Likert scale with high scores reflecting high levels of the specific sexual behaviors. The reliability of this instrument was .91(Cronbach‘s alpha). Data were collected during the period from September 1 to September 30, 2001. The collected data were analyzed using t-test, Chi-square, ANCOVA with SPSSwin program. The scores of a sample of WWBC were compared to those of BCS and the scores of BCS were compared by type of surgery and period since surgery. The results were as follows: 1. No differences in sexual behaviors were found between BCS and WWBC, but, differences were found in communication, sexual technique, and relationship quality depending on the period since surgery. 2. Mean Score of BCS' communication in sexual behaviors was significantly lower than that of the WWBC. 3. Sexual behaviors scores of BCS with Menopause, lumpectomy, long duration since surgery showed significantly higher than that of the others. In conclusions, BCS returned to the normal sexual behaviors according to period since surgery. The program of the sexual counseling for patients before surgery should consider this result in the future.

• 한국의상디자인학회지
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• 제15권1호
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• pp.91-109
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• 2013

The main objective of this research was to understand the latest trends of natural print design through the quantitative & qualitative analysis of fashion appeared in contemporary female collections. The research criteria was defined as 3 seasons from 2011 S/S to 2012 S/S. Data collection of 726 was done through review of 'pr$\hat{e}$t-$\grave{a}$-porter Collections' of three major fashion cities; Paris, Milan and NY. Statistical analysis of frequency with chi-square test was conducted. Also qualitative interpretation of natural print design' characteristics was completed. The main findings were as follows.; The average occurrence rate of natural print design from 2011SS to 2012 SS in three collections were 6.4% in Milan 6.4%, 5.5% in Paris and 6.8% in N.Y. The five source types of natural prints in contemporary women's fashion collections were identified and the order of their appearance were as follows: flowers, plants, animals, insects & marine organisms and compound one. The plant prints were expressed by stylized or realistic touch. Flower patterns showed more variables than plants, however, there were no big difference in their image and major characteristics. The animal prints demonstrated two aspects. First one used typical animal print of fur or skin, but the other one draw the animal figure like paintings. The compound source type presented the most interesting and fresh pattern design ideas. In the insects & marine organisms, mainly butterfly and seashell & starfish, etc. appeared as real shapes or sometimes were stylized.

• 헤리티지:역사와 과학
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• 제46권3호
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• pp.230-250
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• 2013

동아대학교박물관에 소장된 <초충도수병(草蟲圖繡屛)>(이하 <수병>)은 보물 제595호로 지정되어 있으며 초충도 회화작품보다 더 정교하고 섬세한 사실적 표현과 다채한 입체적 구성으로 미술사 분야에서 그 가치가 높이 평가되어 왔다. 그러나 <수병>이 자수 작품임에도 불구하고 현재까지 섬유공예적 측면에서의 분석과 연구는 이루어지지 않았다. 본고에서는 <수병>의 바탕직물, 자수색사, 자수기법 등을 과학적 기기를 사용하여 조사 분석함으로써 <수병>의 문양소재와 섬유공예적 특징 및 <수병>이 섬유공예사에서 갖는 가치를 규명하였다. 연구 결과, <수병>은 8폭 병풍으로 이루어져 있으며 소재와 구도는 일반적인 초충도 회화작품과 유사하다. 각 폭의 주제문양은 제1폭에서부터 순서대로 오이, 맨드라미, 원추리, 여주, 패랭이, 수박, 가지, 들국화로 이루어져 있다. <수병>의 문양 중 여주는 현전하는 초충도 회화작품에서는 볼 수 없는 특별한 소재이다. 제8폭은 곤충, 파충류 등의 문양이 없이 들국화만 단독으로 시문하여 초충도의 전형적인 형식과 차별이 있다. <수병>의 직물은 지금까지 장식용 자수에서는 볼 수 없었던 검은색을 사용하여 다채한 색사를 강조하여 극대로 표현하고자 했음을 알 수 있다. 바탕직물은 5매 공단[무문단(無紋緞)]을 사용하였다. 자수사는 극히 미약하게 꼬임을 준 반푼사를 사용하였으며 꼬임의 방향은 우연이다. 한 가지 색의 단사를 사용하기도 하고 때로는 두 가지 색을 병사로 사용하거나 합연사한 혼합색을 사용하여 입체적으로 표현하였다. 색상은 열화되고 퇴색이 심하여 원래의 색은 알 수 없지만 가장 많이 사용된 색은 황색계열에서 녹색계열의 색이며 청색, 갈색, 자색 등이 비교적 잘 남아있다. 원추리, 패랭이, 딸기 등의 색은 현재 적황색으로 남아 있는데 초충도와 비교해 볼 때 원래는 주황색 또는 홍색이었을 것으로 추정된다. 자수의 기법은 대부분 표면평수를 사용하여 면을 채우고 있다. 이를 통해 색사의 낭비를 줄이고자 했던 옛 여인들의 알뜰한 지혜가 엿보인다. 평수는 면을 장식하는 비교적 간단한 자수법이지만 색사를 다양화하고 면을 분할하여, 수직, 수평, 사선평수를 배합하고 때로는 자릿수와 같이 서로 맞물리게 자수하여 다양한 질감과 양감을 표현하였다. 곤충의 몸통은 가장자리수와 이음수, 평수를 혼합하여 입체적으로 표현하고 있으며, 특히 가장자리수의 활용이 주목된다. 그 외 이음수로 잎맥 등을 입체감 있게 나타내고, 제7폭의 쇠뜨기는 표면솔잎수를 층층이 자수하여 사실적으로 표현하였다. 패랭이, 딸기, 오이 등에는 평수 위에 장식수를 더하여 세세한 묘사를 더했다. <수병>은 회화사, 문화사적으로도 가치가 크지만 한국 자수공예사에 있어서도 우수한 한국적 자수기법과 색채를 사용하여 신사임당 초충도의 모습을 가장 잘 표현하고 있는 점에서 큰 중요성을 지닌다고 할 수 있다.