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황세미,전유용,박헌진,송영록,이상민,Hwang, S.M.,Jeon, Y.Y.,Park, H.J.,Song, Y.R.,Lee, S.M. 대한의용생체공학회 2010 의공학회지 Vol.31 No.5
Automatic gain control(AGC) is used in hearing aids to compensate for the hearing level as to reduced dynamic range. AGC is consisted of the main 4 factors which are compression threshold, compression ratio, attack time, and release time. This study especially focus on each individual need for optimum release time parameters that can be changed within 7 certain range such as 12, 64, 128, 512, 2094, and 4096ms. To estimate the effect of various release time in AGC, twelve normal hearing and twelve hearing impaired listeners are participated. The stimuli are used by one syllable and sentence which have the same acoustic energy respectively. Then, each of score of the word recognition score is checked in quiet and noise conditions. As a result, it is verified that most people have the different best recognition score on specific release time. Also, if hearing aids is set by the optimum release time in each person, it is helpful in speech recognition and discrimination.
황세미,배덕호,김상욱,Hwang, Se-Mi,Bae, Duck-Ho,Kim, Sang-Wook 한국정보처리학회 2012 정보처리학회논문지D Vol.19 No.1
본 논문에서는 예전 논문의 기득권 현상을 해결하기 위해 한 논문이 현재 다른 논문들로부터 받은 참조뿐만 아니라, 해당 논문의 잠재적인 참조도 함께 고려하는 랭킹 방안을 제안한다. 더 나아가, 논문의 정확한 랭킹 측정을 위해 두 논문 간의 내용 연관성도 함께 고려하는 랭킹 방안을 제안한다. 마지막으로, 실제 논문 데이터를 이용한 다양한 실험들을 통해, 제안 방안의 우수성을 입증한다. In this paper, to solve a vested interests of old papers in scientific literature ranking, we propose novel method that considers not only the current citations from other published papers but also the latent citations of papers to be published in the future. Furthermore, the method also considers the relevance of contents in the citing and cited papers. Finally, we verify the superiority of our proposed method through extensive experiments.
Streptococcus mutans균에 대한 기능성 치약의 항균 효과
황세미,문소정,김기림 한국치위생감염관리학회 2019 한국임상치위생학회지 Vol.7 No.2
Objectives: This study aimed to evaluate the anti-bacterial activity of various functional toothpastes against Streptococcus mutans, the most common oral bacteria causing dental caries. Methods: Toothpastes were selected based on their function, including whitening toothpaste (WT), fluoride toothpaste (FT), toothpaste for sensitive teeth (ST), toothpaste for gingivitis (GT) and toothpaste for oral malodor (OT). Each toothpaste was selected to have a high content of functional ingredients. The most common toothpaste was selected as a positive control (PC); 1% hydroxyethylcellulose was used as an negative control toothpaste formulated without an antimicrobial agent. Activated S. mutans were plated on an agar medium, wells were bored, and experimental toothpastes were loaded. After 24 hours of incubation at 37℃, the antimicrobial activity of each toothpaste was evaluated. Results: The mean inhibition zones of the experimental groups was measured as 21.0 mm in WT, 16.6 mm in OT, 15.7 mm in PC, 14.5 mm in ST, 12.6 mm in FT, and 6.1 mm in GT. Conclusions: The anti-bacterial activity of the functional toothpastes against S. mutans was highest with WT and lowest with GT. In the future, research and development of toothpastes showing each function with strong basic antimicrobial effect on S. mutans will be needed.
황세미 ( Se-mi Hwang ),배덕호 ( Duck-ho Bae ),황원석 ( Won-seok Hwang ),채수민 ( Soo-min Chae ),김상욱 ( Sang-wook Kim ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.1
새로운 분야의 연구를 시작할 때, 해당 분야를 대표하는 핵심 논문을 파악할 수 있다면, 많은 도움이 된다. 본 논문에서는 특정 분야의 핵심 논문들을 추출하는 방안을 제안하고, 다양한 실험을 통해 제안하는 방안의 정확성과 효용성을 검증한다.
정신보건사업 종사자의 자살관련 지식, 태도 및 경험에 관한 예비 연구
김혜진,황준원,주진형,김학선,황세미,이강욱 대한신경정신의학회 2015 신경정신의학 Vol.54 No.3
Objectives ZZThis study was conducted to investigate knowledge, attitude, and experience regarding suicidal behavior among mental health workers in Gangwon province of Korea to use as a basis for development of suicide prevention and education programs. MethodsZZQuestionnaires consisted of 31 questions including general knowledge regarding suicide statistics and suicide related legislation, attitude toward suicide, awareness of suicide, and individual experiences of suicidal behaviors. Chi-square and binary logistic regression analyses were used to determine differences and association among attitude toward suicide, individual experience of suicide, and sociodemographic characteristics. ResultsZZTaboo attitude toward suicide showed association with age and male. Males thought that social responsibility for suicide is necessary. Religiously non-affiliated group and people who had previous suicidal ideation and attempts showed a more permissive attitude toward suicide. ConclusionZZThe findings of this study suggest that demographic characteristics and previous individual experience of suicidal behaviors might influence attitude toward suicide. These personal characteristics should be considered in development of suicide prevention programs for mental health workers.
배덕호 ( Duck-ho Bae ),황세미 ( Se-mi Hwang ),김상욱 ( Sang-wook Kim ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.1
새로운 논문은 대부분 기존 논문들의 영향을 받아 발행된다. 따라서 논문들 간의 발행 계보를 파악할 수 있다면, 해당 분야의 연구 발전 과정을 파악하는데 큰 도움이 될 수 있다. 본 논문에서는 논문들 간의 계보를 탐색하기 위한 방안을 제안하고, 실험을 통해 제안하는 방안의 우수성을 검증한다.
김병석,박기훈,Lee Ok-Hee,Lee Giwan,Kim Hyoukjung,Lee Siyoung,황세미,김영봉,Choi Youngsok 아세아·태평양축산학회 2023 Animal Bioscience Vol.36 No.1
Objective: This study aimed to examine the influence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on pregnancy in cytokeratin-18 (K18)-hACE2 transgenic mice. Methods: To determine the expression of hACE2 mRNA in the female reproductive tract of K18-hACE2 mice, real-time polymerase chain reaction (RT-PCR) was performed using the ovary, oviduct, uterus, umbilical cord, and placenta. SARS-CoV-2 was inoculated intranasally (30 μL/mouse, 1×104 TCID50/mL) to plug-checked K18-hACE2 homozygous female mice at the pre-and post-implantation stages at 2.5 days post-coitum (dpc) and 15.5 dpc, respectively. The number of implantation sites was checked at 7.5 dpc, and the number of normally born pups was investigated at 20.5 dpc. Pregnancy outcomes, including implantation and childbirth, were confirmed by comparison with the non-infected group. Tissues of infected mice were collected at 7.5 dpc and 19.5 dpc to confirm the SARS-CoV-2 infection. The infection was identified by performing RT-PCR on the infected tissues and comparing them to the non-infected tissues. Results: hACE2 mRNA expression was confirmed in the female reproductive tract of the K18-hACE2 mice. Compared to the non-infected group, no significant difference in the number of implantation sites or normally born pups was found in the infected group. SARS-CoV-2 infection was detected in the lungs but not in the female reproductive system of infected K18-hACE2 mice. Conclusion: In K18-hACE2 mice, intranasal infection with SARS-CoV-2 did not induce implantation failure, preterm labor, or miscarriage. Although the viral infection was not detected in the uterus, placenta, or fetus, the infection of the lungs could induce problems in the reproductive system. However, lung infections were not related to pregnancy outcomes.