술후 감염조절이 어려웠던 환자의 증례보고

김수민,여환호,김영균,김수관,서재훈,박인순,박인수,김용욱,Kim, Soo-Min,Yeo, Hwan-Ho,Kim, Young-Kyun,Kim, Su-Gwan,Seo, Jae-Hoon,Park, In-Soon,Park, In-Soo,Kim, Young-Uk 대한악안면성형재건외과학회 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.1

Treatment of infected mandibular fracture is confronted with various difficult problem, e.g. nosocomial wound infection, non-union of fracture, osteomyelitis. Recently, nosocomial infection has become a major health problem because of excessive morbidity, personal distress, and cost. Frequently, isolated causative microorganisms of nosocomial infection were staphylococcus aureus, pseudomonas aeruginosa, klebsiella species. The various manifestation of the disease related to the pathogenesis and the clinical course tend to give a bad prognosis after operation. This is a report of case that post-operative infected mandibular fracture in 53-year-old man was not healed even through aggressive I & D and antibiotic treatment.

2단 실린더형 싸이클론의 물 및 오일 액적 제거 성능 분석 연구

김수민,김학준,김명준,한방우,우창규,김용진,Kim, Sumin,Kim, Hak-Joon,Kim, Myungjoon,Han, Bangwoo,Woo, Chang Gyu,Kim, Yong-Jin 한국입자에어로졸학회 2017 Particle and Aerosol Research Vol.13 No.3

A novel two stage cylindrical cyclone was developed for a 3 phase separator in shale oil production industry. The cyclone performance was compared with a cone type cyclone and multi cyclone at the same experimental condition using water and oil mists generated by a humidifier and atomizer at the flow rate 1 to $2m^3/min$. The removal efficiency of total suspended water droplets by the novel cyclone, calculated using inlet and outlet concentrations measured by an optical particle counter, was 99% which is higher than 90% of oil droplet removal efficiency at $2m^3/min$. It might be due to the evaporation of small water droplets during the tests. The water and oil droplet removal performance of the novel cyclone based on the quality factor which is a function of pressure drop and removal efficiency was the highest among three cyclones. The results indicate that the cyclone could be an economical device to remove water and oil mists from shale gas generation processes where a huge three phase separator is commonly used.

광원의 특성에 따른 Boron-doped p-type Cz-Si 태양전지의 광열화 현상 분석

김수민,배수현,김영도,박성은,강윤묵,이해석,김동환,Kim, Soo Min,Bae, Soohyun,Kim, Young Do,Park, Sungeun,Kang, Yoonmook,Lee, Haeseok,Kim, Donghwan 한국재료학회 2014 한국재료학회지 Vol.24 No.6

When sunlight irradiates a boron-doped p-type solar cell, the formation of BsO2i decreases the power-conversion efficiency in a phenomenon named light-induced degradation (LID). In this study, we used boron-doped p-type Cz-Si solar cells to monitor this degradation process in relation to irradiation wavelength, intensity and duration of the light source, and investigated the reliability of the LID effects, as well. When halogen light irradiated a substrate, the LID rate increased more rapidly than for irradiation with xenon light. For different intensities of halogen light (e.g., 1 SUN and 0.1 SUN), a lower-limit value of LID showed a similar trend in each case; however, the rate reached at the intensity of 0.1 SUN was three times slower than that at 1 SUN. Open-circuit voltage increased with increasing duration of irradiation because the defect-formation rate of LID was slow. Therefore, we suppose that sufficient time is needed to increase LID defects. After a recovery process to restore the initial value, the lower-limit open-circuit voltage exhibited during the re-degradation process showed a trend similar to that in the first degradation process. We suggest that the proportion of the LID in boron-doped p-type Cz-Si solar cells has high correlation with the normalized defect concentrations (NDC) of BsO2i. This can be calculated using the extracted minority-carrier diffusion-length with internal quantum efficiency (IQE) analysis.

멜라민 화합물을 이용한 산화 그래핀 도핑 및 특성 평가

김수민,김현,김소양,한종훈,Kim, Sumin,Kim, Hyun,Kim, So Yang,Han, Jong Hun 한국재료학회 2019 한국재료학회지 Vol.29 No.11

In this paper, nitrogen-doped reduced graphene oxide(rGO) is obtained by thermal annealing of nitrogen-containing compounds and graphene oxide (GO) manufactured by modified Hummers' method. We use melamine as a nitrogen-containing compound and treat GO thermally with melamine at over $800{\sim}1,000^{\circ}C$ and 1 ~ 3 hr under Ar atmosphere. The electrical conductivity of doped rGO is measured by 4-point probe method. As a result, nitrogen contents on rGO are found to be in the range of 2.5 to 12.5 at% depending on the doping conditions after thermal annealing. The main doping site on graphene oxide is changed from pyridinic-N and pyrrolinic N to the graphitic site as the heat treatment temperature increases. The electrical conductivity of doped rGO increases as the N doping content increases. As the thermal treatment time increases, the change of both total doping contents and doping sites is slight and the surface resistance is remarkably reduced, which is caused by healing effects of doped graphene oxide at high temperature.

임플란트와 레진 클래스프를 이용한 심미 가철성 국소의치 증례

김수민,전영찬,정창모,윤미정,허중보,Kim, Su-Min,Jeon, Young-Chan,Jeong, Chang-Mo,Yun, Mi-Jung,Huh, Jung-Bo 대한치과보철학회 2015 대한치과보철학회지 Vol.53 No.1

For the rehabilitation of fully edentulous patients, implant-supported removable partial dentures can be considered as one of the treatment options with complete dentures or implant-supported overdentures. If removable partial dentures are used in combination with a small number of implants placed in strategically important positions, it can offer additional stability, retention and support through implants and reduce a burden of surgical procedures compared with fixed implant-supported prostheses with extensive implant placement. Moreover, the economical benefit can be expected as well. The purpose of this case report is to present a treatment in which an implant-supported removable partial denture was fabricated considering residual alveolar bone status and demands after teeth loss in a patient who had been using a distal extension removable partial denture for a long period of time. In anterior area, fixed prostheses were fabricated with implant placement and in posterior area, short implants provide only support for the removable partial denture. In addition, denture base and clasp were made of thermoplastic acrylic resin. Finally, functionally and aesthetically satisfying treatment results can be achieved. 완전 무치악 환자의 수복 시 총의치나 임플란트 지지 피개의치와 더불어 임플란트를 지대치로 이용하는 국소의치가 치료 방법의 하나로 고려될 수 있다. 적은 수의 임플란트를 전략적으로 중요한 위치에 식립한 후 가철성 국소의치로 수복할 경우, 임플란트를 통해 안정을 얻고 부가적으로 유지 및 지지를 확보할 수 있을 뿐만 아니라 광범위한 임플란트 식립을 통한 고정성 보철물에 비해 환자의 수술 부담을 줄여줄 수 있으며, 치료비용 절감 효과도 기대할 수 있다. 본 증례는 오랫동안 국소의치를 사용해 온 환자에서 치아 상실 후 잔존 치조골의 상태 및 환자의 요구를 고려하여 임플란트 지지 국소의치를 제작한 증례로서 전치부에 식립한 임플란트는 고정성 보철물로 수복하고 구치부의 짧은 임플란트는 지지 기능만 부여하였다. 또한 의치상과 클래스프를 열가소성 아크릴 레진으로 제작함으로써 기능적, 심미적으로 만족스러운 치료 결과를 얻었기에 이를 보고하는 바이다.

공단 근로자의 수부 손상에 관한 연구

김수민,구경숙,이근희,강호현,형인한,성광준,Kim, Soo-Min,Gu, Kyung-Sook,Lee, Geun-Hee,Kang, Ho-Hyun,Hyung, In-Han,Sung, Kwang-Jun 대한물리치료과학회 1999 대한물리치료과학회지 Vol.6 No.1

The hand is a part of the body which has various functions and a sophisticated structures bone, Joint, tendon, ligament and logical nerve organ are aggregated densely in the hand of anatomy its functions are delicate. The hand's functions are very important for doing ADL and a worker's As the hand is structure which is used often and commonly it is a site that can be easily damaged by a accident on work. This study was investigated and analyzed by the results from 238 workers who had hand injury and physical therapy from January, 1997 to June, 1998 at Shin-Pung, Jang-Lim industrial complex which is located in Pusan. <General facts> 1. A hand injury most frequertly happened in worker in their 30's and 20's(66 case, 28%), second was 57 case(24%) their 40's. 2. Among workers suffering from injury, who had one or less than 2 years on the job, a injury most frequently occurred. 3. Scale of workers, A injury most frequently happend in a place where had workers from 10 to 50. 99 workers from that place were 42% of total. 4. Month of occurrence rate in March were the highest compared to other months 40 injury workers in march were 17% of the total. Second was July, and the least was April that injury appeared with 10 workers. (4.2% of the total) <The quality of lesion> 1. Frocture was the most common lesion 82 workers had that lesion(34%) soft tissue rupture was 71 workers who were 30% of total in type of lesion. 2. Of the site of lesion multiple case was the most common in which 57 workers had that lesion it were 24% of the total. The next was the index finger site in which 44 workers were 19% of the total. The index finger was the most common mono-site that can be lesion 36 workers were the middle finger lesion workers who were 15% of the total. Of the joint lesion, PIP was the most in which 76 workers were 44% and in MC 27 workers were 15% of the total. 3. Interval of physical therapy 79 workers from one month to 2 months, was 33% of the total and 174 workers who had therapy below 3 months were 71% 4. Post injury of disablity of the site, phalangeous disability was the most in which 148 workers had that injury and they were 62% of the total of the grade of disability 110 workers who were 46% of the total state from less than 25% disability in hand-function and 59 patients who were 25% had no disability. There were 6 workers (3% of the total) who had over -75%-dibability in the hand-function.

지역별 옹기의 특성분석 및 발효와의 상관관계 분석 : (1) 지역별 옹기의 물성 및 특성

김수민,노형구,김응수,조우석,Kim, Soomin,No, Hyunggoo,Kim, Ungsoo,Cho, Woo Seok 한국세라믹학회 2015 한국세라믹학회지 Vol.52 No.1

Onggi, described as a 'breathing' type of pottery' has significantly influenced the traditional food culture of Korea. It is known that Onggi is an optimal type of storage for fermented foods such as soy sauce, salted seafood, and Kimchi, as air or liquid can penetrate through the body of this material. These foods gain flavor due to the breeding of aerobic bacteria at the beginning of the fermentation process. In this study, Onggi materials from five regions, Gangjin, Yeoju, Ulsan, Yesan, and Jeju, were collected and analyzed to determine their chemical and physical properties before and after sintering. The differences in the raw materials of other mining regions are examined in terms of their chemical and mineralogical compositions, specific surface area, particle size, and particle distribution. Among them, the Gangjin raw material has the greatest mean particle size of $92.29{\mu}m$, as well as the widest particle size distribution. Differences in the levels of $SiO_2$ and $Fe_2O_3$ are shown among Onggi raw materials. However, the crystalline phases formed after sintering are identical, except for the Jeju samples. At all sintering temperatures tested here, Gangjin Onggi showed the greatest porosity, leading to complete air permeation through the body within 90 minutes. These results taken together indicate that air permeation is strongly related to the pore structures in the Onggi body. This is assumed to affect the fermentation behavior.

분산 안테나 시스템에 기반한 무선 액세스망 가상화

김수민,정방철,Kim, Su Min,Jung, Bang Chul 한국정보통신학회 2012 한국정보통신학회논문지 Vol.16 No.10

본 논문에서는 다수 무선 접속 기술 (Radio Access Technology; RAT)이 통합되어 운용되는 셀룰러 네트워크에서 차세대 이동통신 네트워크 진화 방향인 디지털 유닛 (DU)-라디오 유닛 (RU) 분리 구조를 기본으로 무선 액세스 네트워크 가상화 알고리즘을 제안한다. 제안 무선 액세스 네트워크 가상화 알고리즘은 크게 기본 액세스 네트워크 가상화, RAT 가상화, 액세스 경로 이주 알고리즘으로 구성되고, 순차적인 수행을 통하여 최종 무선 액세스 네트워크 가상화가 이루어진다. 제안 무선 액세스 네트워크 가상화 알고리즘은 3GPP LTE와 WiMAX의 두 무선 접속 기술을 예제로 한 시스템 레벨 시뮬레이션을 통하여 시스템 수율 측면에서 성능이 평가된다. 이 때, 네트워크 트래픽 로드의 비대칭성에 따른 두 가지 시나리오를 고려하고, 제안 무선 액세스 네트워크 가상화 알고리즘은 비대칭적 네트워크 트래픽 로드와 사용자 분포 상황에서도 상당한 성능 이득을 성취한다. In this paper, we propose a wireless access network virtualization algorithm based on a digital unit (DU)-radio unit (RU) separated network structure in a cellular network with multiple radio access technologies (RATs). The proposed wireless access network virtualization algorithm consists of a baseline access network virtualization, RAT virtualization, and access path migration algorithms. Final wireless access network virtualization is performed by sequentially performing these procedures. Through system-level simulations which assume 3GPP LTE and WiMAX systems, the performance of the proposed wireless access network virtualization is evaluated in terms of system throughput for two scenarios according to asymmetry of network traffic load. Numerical results show that our proposed wireless access network virtualization algorithm achieves significant system throughput gain even in asymmetric traffic load and user distribution situations.

해면상 혈관종을 동반한 안면신경마비 환자의 한방치험 1례

김수민,노현석,이찬솔,하유경,최동준,Kim, Su-min,Noh, Hyeon-seok,Yi, Chan-sol,Ha, You-kyoung,Choi, Dong-jun 대한한방내과학회 2016 大韓韓方內科學會誌 Vol.37 No.5

Objective: To report the effect of Korean medicine treatment on a facial palsy patient with a cavernous malformation. Methods: The patient was treated with herbal medicine (Jodeung-san, 釣藤散) and acupuncture. The degree of treatment was measured by the Yanagihara-scale and by mobility of the face. Results: During treatment, the patient’s symptoms were relieved and facial movement was improved. Conclusion: This clinical case study showed the effect of herbal medicine and acupuncture on symptoms of facial palsy.

편마비 환자의 견관절 아탈구 측정법과 치료

김수민,권미지,Kim, Soo-Min,Kwon, Mi-Ji 대한물리치료과학회 1994 대한물리치료과학회지 Vol.1 No.2

Shoulder pain is probably the most frequent complication of hemiplegia. Many of the factors contributing to the occurrence of shoulder pain in hemiplegia have shown that the lesions of the rotator cuff tendon or the tendon of the long head of the biceps brachii, the reflex sympathetic dystrophy syndrome, shoulder-hand syndrome, subluxation and rupture of the rotator cuff. Subluxation has been measured by finger breadths, X-Ray, Radiological measure and jig device. The propose of this study decribes the sourse of shoulder pain with hemiplegia, method for subluxation measure and treatment of. hemiplegic shoulder pain.