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( Won-jong Yang ),( Eunhee Park ),( Yu-sun Min ),( Jae-won Huh ),( Ae Ryoung Kim ),( Hyun-min Oh ),( Tae-woo Nam ),( Tae-du Jung ) 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.1
Background/Aims: This study aimed to evaluate the correlation between clinical risk factors of post-extubation dysphagia (PED) and the severity of impaired pharyngeal swallowing function assessed via videofluoroscopic swallowing studies (VFSSs). Methods: This study was a retrospective review of medical records. Of 116 patients who were admitted to the intensive care unit and underwent VFSS, 32 who had non-neurologic disorders and experienced prolonged intubation (for more than 48 hours) were diagnosed with PED. The severity of PED was evaluated by using a functional dysphagia scale (FDS) and a penetration aspiration scale (PAS), on the basis of VFSS. Results: The Simplified Acute Physiology Score 3 and total FDS score were positively correlated (r = 0.40, p = 0.02). Intubation duration was positively correlated with total PAS and FDS scores (r = 0.62, p < 0.001; r = 0.65, p < 0.001, respectively). The amounts of residue in the valleculae (RV) and pyriform sinuses (RP) were associated with intubation duration (r = 0.58, p < 0.001; r = 0.57, p < 0.001, respectively). Multivariate regression analysis revealed that intubation duration was significantly associated with the total FDS score, RV and RP subscales of the FDS, and total PAS score. Conclusions: The severity of impaired swallowing function, particularly the amount of residue in the pharyngeal recesses assessed via VFSS, was strongly associated with both severity of medical illness and intubation duration. Intubation duration could be a prognostic factor for assessing impaired swallowing function on the basis of VFSS.
Ahn Sun Tae,Kim Jong Wook,Park Hong Seok,Kim Hyun Jung,Park Heung Jae,Ahn Hyeong Sik,Lee Sung Won,Moon Du Geon 대한남성과학회 2021 The World Journal of Men's Health Vol.39 No.2
Purpose: This study aimed to understand the characteristics of sexual behaviors among Korean adults to facilitate the development of strategies and policies focused on sexual health in groups categorized by sociodemographic characteristics. Materials and Methods: A nationally representative probability sample of 2,500 individuals (1,273 men and 1,227 women) aged 18–69 years obtained using a stratified multiple-stage sampling method based on Statistics Korea (KOSTAT) participated in a cross-sectional online survey. The survey consisted of structured questionnaires comprising questions on demographic information, lifetime sexual behavior, and sexual behavior in the previous 12 months. Results: The mean age at first sexual intercourse was lower in men than in women (21.9±4.4 vs. 24.1±4.4 years, p=0.001). The overall prevalence rate of sexual events with casual partners within previous 12 months was 13.1% (95% confidence interval [CI], 11.6%–14.5%). It was found to more commonly exist among lower age groups and men. The overall regular condom use rates with relationship partner and casual partner were 14.8% (95% CI, 13.2%–16.4%) and 39.6% (95% CI, 33.9%–45.3%), respectively. Condom use rate with casual partners among 20s and 30s men was 51.2%. Overall, only 10.4% of the respondents had received sexual education about sexually transmitted infections. Conclusions: This study provided contemporary sexual behaviors in Korean adults, and identified socio-demographic factors that seem to influence sexual behaviors. Low condom use rates and low rate of receiving sexual education were concerns. The result of this study would be useful to health professionals to formulate policies and strategies related to sexual health.
Cd 안정동위체를 이용한 토양과 식물계에서 Cd의 거동해석
윤순강(Sun-Gang Yun),정구복(Gu-Bok Jung),김원일(Won-Il Kim),이종식(Jong-Sik Lee),김민경(Min-Kyeong Kim),김진호(Jin-Ho Kim),신중두(Joong-Du Shin),이덕배(Deog-Bae Lee),김삼권(Sam-Cwan Kim) 한국토양비료학회 2008 한국토양비료학회지 Vol.41 No.3
본 연구는 모재가 상이한 산지토양과 폐광인근 지역에 광미사 중 Cd 안정동위체의 분포와 토양 중에서 Cd 안정동위체 간의 관계를 해석하고, Cd 안정동위체 별 식물흡수 정도를 조사하기 위하여 광미사를 처리하고 고추와 콩을 재배하면서 식물체 지상부와 뿌리 중에 Cd의 안정동위체 분포에 대하여 조사하였다. 모재가 상이한 3가지(화강암, 변성암, 퇴적암) 토양에서 Cd의 8개 안정동위체(Cd<SUP>106, 108, 110, 111, 112, 113, 114, 116</SUP>)들의 토양 중 존재비는 토양별 차이가 없었다. 그러나 토양 모재차이에 관계없이 토양 중 Cd의 안정동위체 간에 관계는 크게 4가지의 분포특성을 나타내었다. Cd<SUP>106</SUP>/Cd<SUP>111</SUP> 간에는 직선형관계, Cd<SUP>114</SUP>/Cd<SUP>108 </SUP>간에는 2차식관계, Cd<SUP>110</SUP>/Cd<SUP>106</SUP> 간에는 역2차식 관계, Cd<SUP>110</SUP> / Cd<SUP>113</SUP> 간에는 클러스터형 관계를 보였다. 콩과 고추 중에 Cd은 안정동위체 중 Cd<SUP>116</SUP>, Cd<SUP>114</SUP>, Cd<SUP>112</SUP>이 주를 이루었고 존재비로는 Cd<SUP>116</SUP>이 가장 많았다. 반면 콩과 고추의 뿌리에서는 Cd<SUP>116</SUP>의 존재비가 감소하고 다른 7종류의 Cd 안정동위체 존재비가 상대적으로 증가하는 경향을 보였다. This experiment was conducted to describe the distribution of stable isotope Cd in the mine tailing and uncultivated soils derived from different parent rocks (Igneous rock, Metamorphic rock, and Sedimentary rock) as well as the movement of Cd isotopes from soil to plants, soybean and pepper. The results showed that there was no significant difference in isotopic ratios in soil among the eight kinds of stable isotope of Cd. However the relationship among isotopic ratios of stable isotope of Cd in soils were classified to four types, linear type between Cd<SUP>106</SUP>/Cd<SUP>111</SUP> and Cd<SUP>108</SUP>/Cd<SUP>111</SUP>, quadratic type between Cd<SUP>114</SUP> / Cd<SUP>108</SUP> and Cd<SUP>111</SUP>/Cd<SUP>110</SUP>, reverse quadratic type between Cd<SUP>110</SUP>/Cd<SUP>106</SUP> and Cd<SUP>108</SUP> / Cd<SUP>116</SUP>, and cluster type between Cd<SUP>110</SUP>/Cd<SUP>113</SUP> and Cd<SUP>116</SUP>/Cd<SUP>113</SUP>. While the individual stable isotopes of Cd in root were remained except on the plot of pepper without mine tailing application. Cd<SUP>116</SUP>, Cd<SUP>114</SUP>, and Cd<SUP>112</SUP> played active roles among other stable isotopic Cds in bean and red pepper, and Cd<SUP>116</SUP> was ranked the highest abundance ratio. Contrary to crop itself, the abundance ratios of Cd116 in bean and read pepper roots were decreased, and the ones of other Cds were relatively increased.
애니메이션을 위한 통계적 모델에 기반을 둔 3D 얼굴모델링
오두식(Du-Sik Oh),김재민(Jae-Min Kim),조성원(Seoung-Won Cho),정선태(Sun-Tae Chung) 한국지능시스템학회 2008 한국지능시스템학회 학술발표 논문집 Vol.18 No.1
??본 논문에서는 애니메이션을 위해서 얼굴의 특징표현(Action Units)의 조합하는 방법으로 얼굴 모델링을 하기 위한 3D대응점(3D dense correspondence)을 찾는 방법을 제시한다. AUs는 표정 감정, 발음을 나타내는 얼굴의 특징표현으로 통계적 방법인 PCA (Principle Component Analysis)를 이용하여 만들 수 있다. 이를 위해서는 우선 3D 모델상의 대응점을 찾는 것이 필수이다. 2D에서 얼굴의 주요 특징 점은 다양한 알고리즘을 이용하여 찾을 수 있지만 그것만으로 3D상의 얼굴 모델을 표현하기에는 적합하지 않다. 본 논문에서는 3D 얼굴 모델의 대응점을 찾기 위해 원기둥 좌표계 (Cylinderical Coordinates System)을 이용하여 3D 모델을 2D로 투사(Projection)시켜서 만든 2D 이미지간의 워핑 (Warping) 을 통한 대응점을 찾아 역으로 3D 모델간의 대응점을 찾는다. 이것은 3D 모델 자체를 변환하는 것보다 적은 연산량으로 계산할 수 있고 본래 형상의 변형이 없다는 장점을 가지고 있다.