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김현태 ( Hyuntae Kim ) 연세대학교 법학연구원 의료·과학기술과 법센터 2015 연세 의료·과학기술과 법 Vol.6 No.1
The fad word ``Eu-ri`` has swept across Korea last year. ``Eu-ri`` has been originally used by actor Bo-sung Kim SInce long time ago, but comedian Kuk-ju Lee adapted the fad word at a gag program. Many commercial films are based on the fad word ``Eu-ri`` nowadays. But Bo-sung Kim gets a lot of chances to take a commercial film, although Kuk-ju Lee did an important role on the popularity of the fad word ``Eu-ri``. Besides, Bo-sung Kim doesn``t use the fad word like he has used till now, but borrows Kuk-ju Lee``s style. After focusing on the fact that Lee parodied Kim``s fad word and Kim took many commercial films due to the popularity of the fad word made by Lee, each facts are analyzed from the aspects of each law. From the Copyright Law``s View, copyright cannot be recognized on the fad word ``Eu-ri`` itself. It is required to attain the high extent of creativity to have the valid copyright under the Continental Law system. But fad words, which are too short to contain any value in the usage, barely are recognized to attain copyright. No problem arise from the aspect of demonstration imitation either. Intangible imitation is not acknowledged at Korea. Lee``s parody and Kim``s act on commercial films are also their own demonstration. Besides, the fact that ordinary people might not confuse between Kim and Lee can also be considered, as well as Lee``s creative effort is reflected on the parody. From the Publicity Right``s view. Lee and Kim doesn``t seem to infringe each other``s right. Because not only parody only take a little possession of whole performance but also it IS hard to say that the value is diluted due to repeated exposure. From the Unfair Competition Prevention and Trade Secret Protection Act``s view, Kim``s decision to take commercial films might cause problems. Lee``s parody on the gag program doesn``t consist the competition between Kim. But Kim``s acting similar character with Lee on commercial films might cause unfair competition. Especially, according to the general article which is introduced February 2014, taking commercial film can be categorized as one part of celebrity``s business, and Kim``s taking commercial films can be seem as hijacking a popularity of Lee``s comedy. Taking economic benefit by imitating celebrity``s performance is becoming a serious problem in Korea. Other than Kim``s episode, radio advertisement which imitates fad word was pointed out to infringe celebrity``s right. Adopting the logic which is similar to overtaking right can be also considered as a good method to protect celbrity``s right about their performance.
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Serial line multiplexing method based on bipolar pulse for PET
Kim, Yeonkyeong,Choi, Yong,Kim, Kyu Bom,Leem, Hyuntae,Jung, Jin Ho Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.11
Although the individual channel readout method can improve the performance of PET detectors with pixelated photo-sensors, such as silicon photomultiplier (SiPM), this method leads to a significant increase in the number of readout channels. In this study, we proposed a novel multiplexing method that could effectively reduce the number of readout channels to reduce system complexity and development cost. The proposed multiplexing circuit was designed to generate bipolar pulses with different zero-crossing points by adjusting the time constant of the high-pass filter connected to each channel of a pixelated photo-sensor. The channel position of the detected gamma-ray was identified by estimating the width between the rising edge and the zero-crossing point of the bipolar pulse. In order to evaluate the performance of the proposed multiplexing circuit, four detector blocks, each consisting of a 4 × 4 array of 3 mm × 3 mm × 20 mm LYSO and a 4 × 4 SiPM array, were constructed. The average energy resolution was 13.2 ± 1.1% for all 64 crystal pixels and each pixel position was accurately identified. A coincidence timing resolution was 580 ± 12 ps. The experimental results indicated that the novel multiplexing method proposed in this study is able to effectively reduce the number of readout channels while maintaining accurate position identification with good energy and timing performance. In addition, it could be useful for the development of PET systems consisting of a large number of pixelated detectors.
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Kim Jee Hyun,Kim Seyoung,Ryu Ki-Jin,Park Hyuntae,Kim Yong-Jin,Choe Seung-Ah 대한의학회 2023 Journal of Korean medical science Vol.38 No.38
Background: In vitro fertilization-embryo transfer (IVF-ET), an expensive option for infertile couples, started to be fully covered by the National Health Insurance (NHI) from October 2017 in South Korea. We investigated the association between woman’s socioeconomic status (SES) and abortive outcomes in pregnancies after IVF-ET in the setting of universal coverage of the treatment. Methods: Using the NHI database in South Korea, we conducted a retrospective cohort study of all women who achieved clinical pregnancy after ET between October 2017 and February 2019. A total of 44,038 clinical pregnancy episodes of 29,847 women who underwent ET were analyzed. We used employment status, income in percentiles, and living in the Seoul capital area as indicators of SES. Relative risks (RRs) for abortive pregnancy outcomes were calculated for each socioeconomic stratum, using log-binomial regression models included woman’s age, body mass index, fasting blood glucose, fresh ET, month of ET, and history of smoking. Results: While most pregnancy outcomes were live births (n = 30,783, 69.9%), 11,215 (25.5%) cycles ended with abortion or early pregnancy loss, 1,779 (4.0%) cycles were ectopic pregnancy, 45 (0.1%) were coded as molar pregnancy, and 224 (0.5%) were fetal death in utero or stillbirth. The risk of overall abortive outcomes was higher when a woman was unemployed (adjusted RR, 1.08; 95% confidence interval [CI], 1.05–1.11) or living in a nonSeoul capital area (1.11; 95% CI, 1.08–1.14). The association between relative income level and abortive outcomes was close to null. Living outside Seoul capital area was associated with the greater risk of abortive outcomes especially in younger women. Conclusion: Unemployment and living in non-capital areas were associated with a higher risk of abortive outcomes among pregnancies after ET, even in the setting of universal coverage of IVF-ET. This suggests potential impact of socioeconomic position on the IVF-ET pregnancy.
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Does Adequate Lumbar Segmental Motion Reflect Recovery Process in Acute Lumbar Disc Herniation?
Hyuntae Kim,Ho Joong Jung,Minsun Kim,Seong-Eun Koh,In-Sik Lee 대한재활의학회 2019 Annals of Rehabilitation Medicine Vol.43 No.1
Objective To investigate if the extent of lumbar segmental motion is correlated with the recovery process in the form of pain intensity in patients with acute single level lumbar disc herniation (LDH). Methods A retrospective review of medical records was performed on patients presented with acute low back pain from January 2011 to December 2017. With prerequisites of undergoing both lumbar spine magnetic resonance imaging and functional radiography, patients with etiologies other than single level LDH were excluded. A total of 46 patients were selected, including 27 patients with disc herniation at L4-5 level and 19 patients at L5-S1 level. Pearson correlation analysis of pain intensity against segmental range of motion (sROM) and percentage of sROM of each lumbar segment was performed at the initial evaluation point and follow-ups. Results Serial documentation of pain intensity and functional radiography exhibited an inverse correlation between changes in visual analogue scale (VAS) and sROM in single level LDH at L4-5 level (r=-0.69, p<0.05). In addition, percentage of sROM showed a negative correlation with pain intensity at the aforementioned segment (r=-0.74, p<0.05). Initial pain intensity was also inversely correlated to sROM of the affected segment (r=-0.83, p<0.01 at L4-5; r=-0.82, p<0.05 at L5-S1). Conclusion Improvement in sagittal mobility of the affected segment in LDH adequately reflected mitigation of low back pain during the recovery process. This conjunction could illustrate that the involved segment is overcoming natural immobilization, evidently demonstrating an inverse relationship between initial pain intensity and limitation of sagittal range of motion.
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Arbitrarily large gain/phase margin can be achieved by DOB-based controller
Hyuntae Kim,Gyunghoon Park,Hyungbo Shim,Nam Hoon Jo 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
In this paper, we prove that the DOB-based feedback controller can guarantee arbitrarily large but bounded gain margin and phase margin. This fact reminds that the DOB-based controller plays the role of robust controller even in the classical sense. We present a design procedure that ensures desired gain/phase margin even for the plants that have parametric uncertainty.
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