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Choi, Young Deuk,Ham, Won Sik,Kim, Won Tae,Cho, Kang Su,Lee, Joo Hyoung,Cho, Soung Yong,Seo, Ju Wan,Jin, Ok Hyun Mary Ann Liebert 2009 Journal of endourology Vol.23 No.6
<P>PURPOSE: To evaluate the efficacy and safety of single-session OK-432 sclerotherapy for the treatment of renal cysts. MATERIALS AND METHODS: From October 2005 to November 2006, 48 patients (61 simple renal cysts) were included in the study. Indications were determined as flank discomfort (n = 37) or patient reassurance due to increasing size (n = 11). The simple renal cysts were aspirated under ultrasonography (US), at which point OK-432 was injected into the cyst. Follow-up was performed with US or computed tomography scan every 3 months until 1 year. Complete regression of the renal cyst or more than 70% reduction in size with no symptoms indicated a successful treatment. RESULTS: Among 61 renal cysts of 48 patients, the overall success rate was 98.4%. Complete regression occurred in 46 cysts (75.4%), and more than 90% reduction in size occurred in 6 cysts (9.8%). A size reduction of 80% to 90% and 70% to 80% occurred in five (8.2%) and three cysts (4.9%), respectively. A size reduction less than 70% occurred in only one cyst (1.6%). The success of cyst regression was correlated with cyst volume. Clinical symptoms resolved in 100% of patients with symptomatic cysts, and there was no enlargement of the aspirated cysts at the 1-year follow-up. After the procedure, there were only some minor complications, such as mild fever, flank pain, and leukocytosis, which subsided with the conservative treatment. CONCLUSIONS: Percutaneous OK-432 sclerotherapy is simple, safe, and effective, and it can be an alternative first-line therapy for simple renal cysts.</P>
Analysis of Electric Field Distribution in an Insulator of Enclosed C.O.S(Cut Out Switch) using FEM
Lee, Sei-Hyun,Park, Doo-Kee,Koo, Kyung-Wan,Han, Sang-Ok 永同工科大學校 1996 硏究論叢 Vol.2 No.1
In this paper, in order to reduce the breakdown which is producing by the weather condition, we intend to replace open type C.O.S with enclosed type C.O.S at 22.9kV power distribution. In normal state electric field at the enclosed C.O.S, we investigate the electric field distribution. We present the effect that the electric field is reduce by the graded insulation at the inner insulator
Lee, Ho Jung,Han, Si Hyun,Hong, Wan Pyo,Song, Ok-Keun,Lee, Jun Yeob Elsevier 2019 Journal of industrial and engineering chemistry Vol.69 No.-
<P><B>Abstract</B></P> <P>A lifetime extending molecular design approach by increasing the bond dissociation energy of the thermally activated delayed fluorescent (TADF) emitters was investigated. A TADF emitter with a molecular design having the donors in a planar manner, 4-(9<I>H</I>-carbazol-9-yl)-6-(9,9″-diphenyl-9<I>H</I>,9′<I>H</I>,9″<I>H</I>-[3,3′:6′,3″-tercarbazol]-9′-yl)isophthalonitrile (TCzIPN), was compared with state of the art green TADF emitter. The two emitters were green TADF emitters with similar peak wavelengths, but the TCzIPN exhibited three times longer lifetime than the current TADF emitter. Analysis of bond dissociation energy of the TADF emitters revealed that the weak CN bond of the TCzIPN was stabilized by small dihedral angle between donor and an aromatic linker. This was confirmed by exciton stability test of the emitters, and the CN bond stabilization effect in triplet excited state was well correlated with the lifetime improvement of the TCzIPN devices.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
A Comparison of the Results from Somatotype Evaluation with Different Evaluation Tools
Wan Suk Choi,Jung Hyun Choi,Mi Suk Cho,Ok Kon Moon,Joo Hyun Park,Hyung Kuk Chung,Suk Hee Lee,Jung Sook Lee,Kyung Ok Min 국제물리치료학회 2010 Journal of International Academy of Physical Ther Vol.1 No.1
Supposing that somatotype evaluation results would have significant differences between the public group with less amounts of exercises and the special group with intensive exercises for three to four times a day, this study aimed at comparing the mutual consistency between the results determined by somatotype evaluation tools such as visually calculated index(VCI), Rohrer's Index(RI) and Body Mass Index(BMI). The public, taekwondo players and judo players groups were com˗ posed of fifty persons, taekwondo players and judo players passed through VCI determination, respectively. Their height and weight were examined and analyzed with somatotype evaluation tools. Comparison of somatotype dispersion of RI and VCI showed that most women were determined by VCI as lean type but were deter˗ mined by RI as normal type. And that women were determined by VCI as fat type but were determined by RI as normal type. Therefore both men and women showed significant differences in VCI and RI. Comparison of somatotype dispersion of VCI and BMI showed that both men and women were overestimated or underestimated by VCI rather than by BMI. Comparison of somatotype dispersion of RI and BMI showed that men were less determined by BMI as lean type compared with women; both men and women less determined by BMI rather than by RI as normal type; and both men and women, in particular, were more determined by BMI as fat type but men were more determined by BMI rather than by RI as fat type. Total somatotype consistency by tools showed that VCI has the greatest possibility of determining the public group, compared with other groups as lean type and that the consistency of the three tools were relatively higher for the taekwondo players and judo players groups, compared with the public.
Study on the History of Korean Physical Therapy
Lee, Sang-Bin,Moon, Ok-Kon,Kim, Ji-Sung,Shin, Hee-Joon,Choi, Wan-Suk,Choi, Yoo-Rim,Lee, Jun-Hee,Kim, Nyeon-Jun,An, Ho-Jung International Academy of Physical Therapy Research 2010 Journal of International Academy of Physical Ther Vol.1 No.1
Since physical therapy was first introduced in Korea, it has been 50 years past and Korean physical therapy has made rapid progress. However, history or educational system of Korean physical therapy is still not known worldwide. Now, for Korean physical therapy to go beyond Asia and leap toward the world, endless studies, efforts and publicity are required. Korean physical therapy first began by missionaries dispatched from other countries like America and Canada with Korean War, which occurred in 1950. After the War, Korean Physical Therapy is developed very fast. Korean Physical Therapy Association was founded in October 1, 1965 and many physical therapist were discharged. Korea became a full member of World Confederation of Physical Therapy(WCPT) in 1974, and held the 2nd Asia Pacific Confederation of Physical Therapy assembly in 1984 and WCPT assembly in 2005. Today, in 2010, licensed physical therapists are about 35,000 and there are physical therapy departments in 74 universities, and 17 universities have master's or doctor's degree courses. And there are many academic journals(more than 10) related to physical therapy that are published. Many Korean physical therapists are working at various countries like America or Australia, and are acknowledged with excellent treatment technology and academic studies. This thesis aims to shed new light to the history and educational system reorganization of Korean physical therapy and introduce it to the world, and establish the historical foundation to develop Korean physical therapy into the international level.
Wan Kuen Jo,Ho Hwan Chun,Sang Ok Lee 대한환경공학회 2012 Environmental Engineering Research Vol.17 No.2
This study was performed mainly to examine whether a city with a metal industrial presence presents different characteristics in ambient volatile organic compound (VOC) concentrations compared to residential (RES) and commercial/residential combined (CRC) areas of another city by using long-term monitoring data (from January 2006 to February 2009). For most target VOCs, ambient concentrations in the metal-industrialized city were lower than for the RES and CRC areas. Aromatic compounds were the predominant VOC groups for the metal industry city as well as for other land uses. The ambient concentrations of aromatic VOCs were higher in the winter and spring seasons than in the summer and fall seasons, whereas those of chlorinated VOCs did not show any distinctive variations. In addition, higher concentrations were observed during daytime hours. The correlations between the ambient target compounds were statistically significant, except for the correlation between benzene and ozone.