암모니아와 물 존재 하에서 전자빔조사에 의한 SO₂ 및 NO_x의 동시제거를 위한 연속건식공정

배준석,김혜영,김병남,원양수,한도훙 한국공업화학회 2004 응용화학 Vol.8 No.2

An electron beam radiation technology was adapted to remove SO₂ and NO_(x) simultaneously, which leaded to the production of an ammonium sulfate and an amonium nitrate in an existence of ammonia and water or ammonium hydroxide. Removal efficiencies of both SO₂ and NO_(x) were influenced by irradiated dose, inlet gaseous temperature and concentrations of water and ammonia (or ammonium hydroxide). The removal efficiency of SO₂ and NO_(x) could reach up to 95% at 10 - 20 kGy, when adding ammonia or ammoniun hydroxide with at least more than the stoichiometric ratio based on SO₂ and NO_(x) concentrations. In gas flow rates ranged from 2.5 to 20 liter/min, the removal efficiencies of SO₂ and NO_(x) showed nearly unchangeable values. The optimum reaction temperature were ranged from 90 to 100 ℃.

Percutaneous Endoscopic Thoracic Discectomy in the Upper and Midthoracic Spine: A Technical Note

배준석,Sourabh Chachan,신상하,이상호 대한척추신경외과학회 2019 Neurospine Vol.16 No.1

Despite the successful application of percutaneous endoscopic thoracic discectomy (PETD), its technical feasibility and outcomes for symptomatic upper and midthoracic disc herniation have not been reported yet. The purpose of this article was to evaluate the feasibility of the percutaneous transforaminal endoscopic approach to remove disc herniations in the upper and midthoracic spine. Fourteen consecutive patients (mean age, 42.4 years; 12 males, 2 females) who underwent PETD were included in the analysis. The procedure was performed under local anesthesia and intravenous sedation using the standard endoscopy instrument set. The transforaminal approach combined with foraminoplasty was used to access the herniated areas. Treatment outcomes were evaluated using visual analogue scale (VAS) scores, Oswestry Disability Index (ODI) scores, and the modified MacNab criteria. Four discectomies were performed at T2–3, 5 at T3–4, and 5 at T5–6. The mean follow-up period was 43.4 months, and all patients showed statistically significant postoperative improvement (VAS: 7.3 to 2.3, ODI: 53.5 to 16.9, p<0.05 for all). No serious complications were reported during follow-up. PETD for upper and midthoracic disc herniation is a feasible and effective minimally invasive treatment option with favorable clinical results.

고정벽을 활용한 차대차 경사충돌 재현

배준석,김호,소영명 사단법인 한국자동차안전학회 2022 자동차안전학회지 Vol.14 No.4

Commercial use of autonomous vehicles is to come soon. So far most of responsibility of the accident is on the human driver with conventional vehicles whereas that will be on the car OEM and transportation related organizations with autonomous vehicles, which asks car OEM’s and government to do vast study of car crash in various conditions. Test protocols need amendment and to be newly enacted to reflect new findings from the study aforementioned. Rigid stationary barrier and moving or stationary deformable barrier as well as car to car test which is same as actual accident can be utilized to simulate the crash happening on the road. Among those 3 test methods, rigid stationary barrier is most economic and has good repeatability. Limitation as well as advantage of the rigid stationary barrier is studied through comparison between car to car crash and oblique rigid barrier crash.

양방향성 Scan Rate Converter 설계에 관한 연구 ( Study on Design of Bidirectional Scan Rate Converter )

배준석,이주석,고학림,박노경,문대철 대한전자공학회 1996 대한전자공학회 학술대회 Vol.1996 No.7

항인지질항체증후군을 동반한 전신홍반루푸스 환자에서 생긴 반복적인 일과성 단안실명 1예

배준석,김지언,권영미,김성제,최정윤,김채기,이동국 대한신경과학회 2002 대한신경과학회지 Vol.20 No.5

척추성형술로 치유한 K?mmell's Disease 환자 1예

배준석,이종남,박영철,조인찬 대한통증학회 2002 The Korean Journal of Pain Vol.15 No.2

=A Case of Delayed Post-traumatic Vertebral Collapse (Kummell's Disease) Treated by VertebroplastyA case report Jun Seok Bae, M.D., Jong Nam Lee, M.D., Young Chul Park, M.D., and In Chan Cho, M.D.*

Brightness 기능을 갖는 컬러 스페이스 컨버터 설계에 관한 연구

배준석,박노경,문대철 한국음향학회 1998 韓國音響學會誌 Vol.17 No.1

본 논문에서는 기존의 단방향 컬러 스페이스 컨버터(Color Space Converter)를 양방 향으로 변환하는 것뿐만 아니라, 기존의 디코더, 엔코터 및 모니터 등이 가지고 있는 Brightness 기능을 갖도록 변환 행렬 계수를 임의로 조정할 수 있는 컬러 스페이스 컨버터 를 설계하였다. 이러한 변환 계수 자체를 조정하여 휘도 및 색차 신호에 변화를 주는 방법 은 새롭게 제안한 방법으로 계수의 조정은 ROM형태를 이용하여 향후 인터페이스 부분을 부가하여 소프트웨어적으로 제어할 수 있도록 설계하였다. 본 논문에서 제안한 Brightness 기능을 갖는 컬러 스페이스 컨버터는 저가의 멀티미디어 비디오 관련 시스템을 구현할 수 있는 장점을 가지고 있다.

A split-face study to evaluate the efficacy of a dissolving microneedle-encapsulated niacinamide skin patch for the reduction of facial hyperpigmentation

배준석,남승민,차한규,박은수 대한미용성형외과학회 2022 Archives of Aesthetic Plastic Surgery Vol.28 No.4

Background This study aimed to evaluate the efficacy and safety of a dissolving microneedle (DMN)-encapsulated niacinamide skin patch to reduce facial hyperpigmentation. Methods A split-face study was conducted between April and June 2022 in 17 patients treated with a DMN-encapsulated niacinamide skin patch, which was applied only on the right side of the face, while the left face remained free of a pigmentation-improving agent. A topical moisturizer and physical sunscreen were applied on both sides of the face for 2 weeks. We compared both sides of the face 2 weeks after applying the skin patch using an automatic skin analysis device to investigate skin pigmentation. The melasma severity scores of both sides were evaluated before and 2 weeks after application. Results A significant difference in the epidermal pigmentation score between pretreatment and 2 weeks after treatment was noted on the right side (P<0.05), but not on the left side of the face (P>0.05). A significant difference in the melanin score between pre-treatment and 2 weeks after treatment was noted on the right side (P<0.05), but not on the left side (P>0.05) of the face. There was no significant difference in the melasma severity score on either side of the face between pre-treatment and 2 weeks after treatment (P>0.05). Conclusions The application of a DMN-encapsulated niacinamide skin patch to improve skin pigmentation may yield good outcomes and provide comfort to patients without any complications.

Correlation of Paraspinal Muscle Mass With Decompensation of Sagittal Adult Spinal Deformity After Setting of Fatigue Post 10-Minute Walk

배준석,Ashwin Sathe,이세민,Alexander A. Theologis,Vedat Deviren,이상호 대한척추신경외과학회 2021 Neurospine Vol.18 No.3

Objective: The purpose of this study was to investigate the changes in spinopelvic parameters before and after the setting of muscle fatigue along with its correlation with pre-existing paraspinal and psoas muscle mass. Methods: Single-center retrospective review of prospectively collected data was conducted on 145-adults with symptomatic loss of lumbar lordosis (LL). Radiographs were taken before and after walking for 10 minutes. Magnetic resonance imaging was used to calculate paraspinal muscle (PSM) cross-sectional area (CSA), mean signal intensity, fatty infiltration (FI), and lean muscle mass at thoracolumbar junction (T12) and lower lumbar level (L4). Psoas CSA was calculated at L3. Patients were divided into 2 groups namely compensated sagittal deformity (CSD) (SVA ≤4 cm, PT>20°) and decompensated sagittal deformity (DSD) (SVA>4 cm, PT>20°) based on prewalk measurements. Results: Initial mean SVA was 1.8 cm and 11 cm for CSD and DSD respectively (p<0.01). After walking, significant deteriorations in SVA, PT–LL (p<0.01) were observed in CSD without significant change in thoracic kyphosis (TK). All sagittal parameters in DSD deteriorated significantly. DSD group had significantly poorer PSM quality at T12 and L4 compared to CSD group. In CSD group, sagittal decompensation correlated with muscle quality, i.e., decreases in LL (ΔLL) correlated with CSA of PSM/vertebral body (VB) at L4 (r= -0.412, p=0.046) while increases in TK (ΔTK) correlated with CSA of PSM/VB at T12 (r=0.477, p=0.018). ΔSVA and ΔPT correlated with FI at L4 (r=0.577, p=0.003 and r=-0.407, p=0.048, respectively). DSD group, had weak correlations (-0.3<r<-0.1) between changes in sagittal and PSM parameters. Conclusion: PSM quality in adults with spinal deformity correlates with patients’ ability to maintain an upright posture and sagittal decompensation after walking for 10 minutes.

미국의 금융개혁법이 한국의 금융제도에 미치는 영향 - 금융규제·감독체계를 중심으로 -

배준석 한국금융법학회 2010 金融法硏究 Vol.7 No.2

The Dodd-Frank Wall Street Reform and Consumer Protection Act was enacted in July, 2010. Because of the United States' considerable influence on the world's economy, the country's financial reform plans have attracted the world's attention ever since discussions regarding the Act commenced. The Act is expected to be a rudder for financial reform that many countries will use to move forward. Therefore, an in-depth study on the Act can provide numerous insights and suggestions regarding the financial reform activities in Korea as well. It is, however, obvious that a country's financial system cannot be uniformly applied to other countries because each financial system reflects that particular country's political and economic characteristics. With that limitation in mind it is very useful, applicable, and essential to take Korean traits into consideration when applying the Act to the financial system in Korea. While some aspects of the Act have direct implications for the Korean financial system, other aspects do not. For example, the Act established the Financial Stability Oversight Council, but such a collective decision-maker is not appropriate for Korea because the central banking and financial supervisory system of Korea differs from that of the United States. Particularly, the Bank of Korea, Korea's central bank, does not have financial supervisory powers as of now. Examples of direct applications of the Act, however, would be the orderly liquidation authority and payment/settlement supervision as those and other provisions furnish Korea with useful information. Establishing an organization taking exclusive charge of consumer financial protection is not urgent in Korea because the integrated financial supervisory authority has just begun taking new measures for strengthening consumer financial protection. Additional provisions related to the Federal Reserve System, such as the publication of more information, also can be directly applied to Korea's central bank.