전기자동차 화재에 따른 지하주차장 내화설계 개선 필요성 검토

김해나 ( Kim Hae-na ),박준서 ( Park Jun-seo ),신종현 ( Shin Joung-hyeon ),홍상훈 ( Hong Sang-hun ),정의인 ( Jung Ui-in ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2022 한국건축시공학회 학술발표대회 논문집 Vol.22 No.2

Electric vehicle fires in underground parking lots are very dangerous, but it is judged that the current related laws and regulations do not change, which will cause problems. As a result of the analysis for the purpose of providing an electric vehicle in an underground parking lot, fire-resistance coating is essential as it can cause an explosion in the building members made of high-strength concrete when an electric vehicle fire occurs in an underground parking lot. Since a fire occurs, it is necessary to prevent electric vehicles from parking adjacent to each other.

Clinical Treatment Efficacy Using One-snip Punctoplasty and Irrigation Technique in Primary Canaliculitis Patients

Ui Seo Park,Jae Wook Yang,Young Jin Kim 대한안과학회 2022 Korean Journal of Ophthalmology Vol.36 No.2

상안검뒷당김에 대한 필러주입술 이후 발생한 중심망막동맥폐쇄

박의서(Ui Seo Park),김영진(Young Jin Kim),양재욱(Jae Wook Yang) 대한안과학회 2021 대한안과학회지 Vol.62 No.11

목적: 상안검뒷당김 치료를 위한 필러 주입 후 중심망막동맥폐쇄가 발생한 환자의 급성기 안과 검사와 빠른 처치 후 완전한 시력회복을 보인 증례를 보고하고자 한다. 증례요약: 2016년부터 양안 갑상샘눈병증으로 경과 관찰하던 40세 여성이 좌안 상안검뒷당김으로 내원하여 이에 필러 주입을 시행하기로 하였다. 시술 전 양안 교정시력 1.0이었다. 좌안 상안검 내측에 히알루론산 필러를 0.3 mL가량 주입 후 바늘을 빼는 순간 좌안시야의 흐림과 시력저하를 호소하였다. 증상 발생 즉시 시행한 검사상 좌안 상대구심동공운동장애가 관찰되었으며, 시력은 안전 수지 30 cm로 측정되었다. 증상 호소 5분 내 안저 사진과 빛간섭단층촬영을 시행하여 의인성 중심망막동맥폐쇄로 진단 후 즉시 전방천자, 만니톨, 아세타졸 정맥 주입 및 안구 마사지를 시행하였다. 필러 주입 90분 후 망막동맥 재관류와 cherry red spot의 소실을 보였고, 3시간 후 1.0의 시력회복을 보였으며 1주 뒤에도 호전된 시력이 유지되었다. 결론: 필러 주입 후 발생한 중심망막동맥폐쇄에 대한 빠른 진단과 전방천자, 만니톨, 아세타졸 정맥 주입 및 안구 마사지를 통해 성공적으로 치료하였다. Purpose: We report a case of central retinal artery occlusion after filler injection for upper lid retraction. Diagnosis and treatment were performed to recover visual acuity and good results. Case summary: A 40-year-old woman presented to our clinic with upper lid retraction. She was diagnosed with hyperthyroidism and thyroid orbitopathy. She had been examined regularly at a local clinic since 2016. At the first visit, her visual acuity was 1.0/1.0 and the intraocular pressure was 19 mmHg, with no unusual findings in the anterior segment. Hyaluronic acid filler was injected into the medial part of the left upper lid. As soon as the needle was removed, she complained of blurry vision and visual impairment. This was followed by the development of a relative afferent pupillary defect; her visual acuity was hand motion at 30 cm. After 5 minutes, we performed wide fundus imaging and optical coherence tomography, which revealed retinal artery occlusion and a cherry-red spot, along with inner retina hyperreflectivity. Under a diagnosis of central retinal artery occlusion, we performed anterior chamber paracentesis, intravenous mannitol and acetazole injection, and an ocular massage. Approximately 1.5 hours after filler injection, retinal artery reperfusion and loss of the cherry red spot were observed and, after about 3 hours, her vision had recovered to 1.0 from hand motion at 30 cm. Conclusions: Central retinal artery occlusion after filler injection, when diagnosed promptly, can be treated by anterior chamber paracentesis, intravenous mannitol and acetazole injection, and ocular massage.

2010 Cleft Lip Charity Operation in Lao PDR

Jun-Bum Cho,Han-Sol Choung,Eun-Hyun Park,Eui-Hyung Hong,Hae-Jung Park,Ho-Sung Seo,Sung-Soo Park,Joo-Young Park,Ui-Lyong Lee,Eun-Suk Kim,Won Lee,Pill-Hoon Choung 대한구순구개열학회 2010 대한구순구개열학회지 Vol.13 No.1

한국얼굴기형환자 후원회 의료봉사팀은 2010년 2월 6일에서 12일까지 라오스의 수도인 Vientiane을 방문하여 구순구개열 무료수술을 무사히 마쳤다. 의료봉사팀은 총 11명으로 구성되었다. 구강악안면외과의 6명과 간호사 2명, 학생 3명이었다. 수술은 라오스 비엔찬의 Mahosot 병원에서 수술장 한개에 수술 침대를 두개 놓고, 두팀을 구성하여 수술을 진행하였다. 당시 서울대학교 치과대학 예방치학교실 백대일 교수님께서 안식년을 맞아 라오스에서 라오스인 구강건강에 관한 national survey를 수행하고 계셨는데 수술팀에게 많은 도움을 주셨다. 2월 7일 토요일 예진 때는 한국국제협력단에서 파견한 국제협력의사 박병원 선생님(내과 전문의)께서 통역으로 도와 주셨다. 총 30명의 환자가(남:여=14 : 16) 수술을 받았으며, 환자들의 평균 나이는 9.7세였다. 수술 종류는 cheiloplasty, palatoplasty, rhinoplasty, scar revision, lip reconstruction로 구분 지을 수 있었으며, 모든 수술은 합병증 없이 마무리되었다. 이번 자선수술을 통해 30명의 환자를 수술하였고, 라오스 의사들에게 구순구개열 진료에 대한 기술을 교육할 수 있었다. 또 라오스 치과대학과 자매결연을 맺는 등 한국-라오스 우호증진에 많은 기여를 한바 이를 보고한다.

2010 Cleft Lip Charity Operation in Lao PDR

조준범,정한솔,박은현,홍의현,박해정,서호성,박성수,박주영,이의룡,김은석,이원,정필훈,Cho, Jun-Bum,Choung, Han-Sol,Park, Eun-Hyun,Hong, Eui-Hyung,Park, Hae-Jung,Seo, Ho-Sung,Park, Sung-Soo,Park, Joo-Young,Lee, Ui-Lyong,Kim, Eun-Suk,Lee, Wo Korean Cleft Lip and Plate Association 2010 대한구순구개열학회지 Vol.13 No.1

한국얼굴기형환자 후원회 의료봉사팀은 2010년 2월 6일에서 12일까지 라오스의 수도인 Vientiane을 방문하여 구순구개열 무료수술을 무사히 마쳤다. 의료봉사팀은 총 11명으로 구성되었다. 구강악안면외과의 6명과 간호사 2명, 학생 3명이었다. 수술은 라오스 비엔찬의 Mahosot 병원에서 수술장 한개에 수술 침대를 두개 놓고, 두팀을 구성하여 수술을 진행하였다. 당시 서울대학교 치과대학 예방치학교실 백대일 교수님께서 안식년을 맞아 라오스에서 라오스인 구강건강에 관한 national survey를 수행하고 계셨는데 수술팀에게 많은 도움을 주셨다. 2월 7일 토요일 예진 때는 한국국제협력단에서 파견한 국제협력의사 박병원 선생님(내과 전문의)께서 통역으로 도와 주셨다. 총 30명의 환자가(남:여=14:16) 수술을 받았으며, 환자들의 평균 나이는 9.7세였다. 수술 종류는 cheiloplasty, palatoplasty, rhinoplasty, scar revision, lip reconstruction로 구분 지을 수 있었으며, 모든 수술은 합병증 없이 마무리되었다. 이번 자선수술을 통해 30명의 환자를 수술하였고, 라오스 의사들에게 구순구개열 진료에 대한 기술을 교육할 수 있었다. 또 라오스 치과대학과 자매결연을 맺는 등 한국-라오스 우호증진에 많은 기여를 한바 이를 보고한다.

Butein Prevents Obesity and Metabolic Diseases via Browning of White Adipose Tissue.

Seo-Hyuk Chang,No-Joon Song,Suji Kim,Zhen Li,Dong Ho Lee,Jin Hee Choi,Ui Jeong Yun,Kye Won Park 한국식품영양과학회 2017 한국식품영양과학회 학술대회발표집 Vol.2016 No.10

Nrf2 induces Ucp1 expression in adipocytes in response to β3-AR stimulation and enhances oxygen consumption in high-fat diet-fed obese mice

( Seo-hyuk Chang ),( Jaeyool Jang ),( Seungjun Oh ),( Jung-hoon Yoon ),( Dong-gyu Jo ),( Ui Jeong Yun ),( Kye Won Park ) 생화학분자생물학회 2021 BMB Reports Vol.54 No.8

Cold-induced norepinephrine activates β3-adrenergic receptors (β3-AR) to stimulate the kinase cascade and cAMP-response element-binding protein, leading to the induction of thermogenic gene expression including uncoupling protein 1 (Ucp1). Here, we showed that stimulation of the β3-AR by its agonists isoproterenol and CL316,243 in adipocytes increased the expression of Ucp1 and Heme Oxygenase 1 (Hmox1), the principal Nrf2 target gene, suggesting the functional interaction of Nrf2 with β3-AR signaling. The activation of Nrf2 by tert-butylhydroquinone and reactive oxygen species (ROS) production by glucose oxidase induced both Ucp1 and Hmox1 expression. The increased expression of Ucp1 and Hmox1 was significantly reduced in the presence of a Nrf2 chemical inhibitor or in Nrf2-deleted (knockout) adipocytes. Furthermore, Nrf2 directly activated the Ucp1 promoter, and this required DNA regions located at -3.7 and -2.0 kb of the transcription start site. The CL316,243-induced Ucp1 expression in adipocytes and oxygen consumption in obese mice were partly compromised in the absence of Nrf2 expression. These data provide additional insight into the role of Nrf2 in β3-AR-mediated Ucp1 expression and energy expenditure, further highlighting the utility of Nrf2-mediated thermogenic stimulation as a therapeutic approach to diet-induced obesity. [BMB Reports 2021; 54(8): 419-424]

Activation of Nrf2 by sulfuretin stimulates chondrocyte differentiation and increases bone lengths in zebrafish

Seo-Hyuk Chang,Hoi-Khoanh Giong,Da-Young Kim,Suji Kim,Seungjun Oh,Ui Jeong Yun,이정수,Kye Won Park 생화학분자생물학회 2023 BMB Reports Vol.56 No.9

Elongation of most bones occur at the growth plate throughendochondral ossification in postnatal mammals. The maturationof chondrocyte is a crucial factor in longitudinal bone growth,which is regulated by a complex network of paracrine and endocrinesignaling pathways. Here, we show that a phytochemicalsulfuretin can stimulate hypertrophic chondrocyte differentiationin vitro and in vivo. We found that sulfuretin stabilizednuclear factor (erythroid-derived 2)-like 2 (Nrf2), stimulatedits transcriptional activity, and induced expression of itstarget genes. Sulfuretin treatment resulted in an increase inbody length of zebrafish larvae and induced the expression ofchondrocyte markers. Consistently, a clinically available Nrf2activator, dimethyl fumarate (DMF), induced the expression ofhypertrophic chondrocyte markers and increased the body lengthof zebrafish. Importantly, we found that chondrocyte gene expressionin cell culture and skeletal growth in zebrafish stimulatedby sulfuretin were significantly abrogated by Nrf2 depletion,suggesting that such stimulatory effects of sulfuretin weredependent on Nrf2, at least in part. Taken together, these datashow that sulfuretin has a potential use as supporting ingredientsfor enhancing bone growth.

지능형 도로교통 제어기의 설계

서재관,이성의,오성남,박귀태,김갑일 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-

Abstract - In this paper, The hardware and software of an Intelligent Traffic Controller has been designed. It consist of several parts-Main CPU module, Field I/O module, Display Module, communication module and Mother Board module. These modules were classified by the functions. This system can be communicated using the Mother Board module. A traffic data is processed by Main CPU module, A data input and output are processed by Field I/O module, User interface is processed by Display module, and Software debugging is processed by communication module and Main CPU module. In this paper, a hardware can be attached and detached easily because It was designed as the module. This system has an advantage that can be used as the common controller. The Overall System consists of several part - loop sensor, loop detector, traffic controller and PC to debug software. Until a few years ago, the sequential program method had been used in Embedded System. But, Because of the complex hardware, the Real Time Operating System is used at the present. In this thesis, OS-9 is ported to the traffic controller. The verification program is designed for testing hardware and software. The verification program consists of several parts - serial communication test, free memory test(DRAM, FLASH, SRAM), Timer test, real time clock, data key read and write test, LED test, Field I/O module test and Front Panel Assembly test. User can verify the hardware and software by calling sub-program.

근관치료용 전기모터의 회전 안정성 평가

박세희,서현우,홍찬의 大韓齒科保存學會 2010 Restorative Dentistry & Endodontics Vol.35 No.4

수종의 근관치료용 전기모터들의 반복사용과 시간에 따른 회전속도의 변화를 비교하여 근관치료용 전기모터의 회전 안정성을 평가하고자 하였다. 시간에 따라 변화하는 실제회전속도 및 전압과 전류를 측정하고, Student t-test를 통한 실제회전속도와, 반복측정분석을 통한 상관관계를 비교분석 하였다. 동일 종류의 전기모터들 사이의 모든 측정 결과들은 차이를 보이지 않았다. 모든 전기모터에서 반복사용과 시간의 흐름에 따른 회전속도의 변화는 차이를 보이지 않았다. 이상의 결과로, 본 실험에 사용된 모든 전기모터는 일정한 회전속도를 유지해야 하는 회전 안정성의 조건에 충족됨을 알 수 있으며, 반복사용과 시간에 따른 신뢰성 있는 회전속도와 안정적인 전압 및 전류의 유지가 가능하리라 생각된다. The purpose of this study was to evaluate a rotational stability of endodontic electronic motors by comparing the changes of rotational speed, depending on the number of usages and with/without static load. Twelve new endodontic electronic motors were used in this study. Non contact type digital tachometer was used for measuring the rotational speed of handpiece. True RMS Multimeter was used for measuring the voltages and the electric currents. All measurements were recorded every 10 seconds during 10 minutes and repeated 9 times. Five repetition was done per each electronic motor. To statistical analysis, student t-test, repeated measures and Scheffe's post-hoc tests were performed. In the same motor group, there was no significant difference in all measurements. In all groups, there was no significant difference in the amount of rotational speed changes depending on the number of usages and with/without static load. In the limitation of this study, the results showed that all kinds of endodontic electronic motors in this study had an established rotational stability. Therefore they could be safely used in root canal treatment with areliable maintenance of rotational speed, regardless of the number of usages and with/without load.