DO와 ORP를 이용한 축산폐수처리 SBR운전 제어

전병희 ( Byong Hee Jun ),김도환 ( Do Hwan Kim ),최은희 ( Eun Hee Choi ),김성신 ( Sung Shin Kim ),김창원 ( Chang Won Kim ),배현 ( Hyeon Bae ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.5

A pilot scale SBR (working volume, 20㎥) treating piggery wastewater was operated with real wastewater. The operation mode of intermittent feeding of raw water and sub-cycle with repeating anoxic-aeration conditions were adapted to avoid the high-strength nitrogen inhibition. In sub-cycle, aeration time for nitrification was tried to be controled with ORP and/or DO meter. The characteristics of control was somewhat different between ORP and DO. DO showed potential ability to detect complete ammonia oxidation point by the first order differential values or absolute value. Especially, DO was proved to be useful for high loading rates. ORP indicated the ending point of nitrification by the plateau appearing after bending point. Because ORP can be utilized as a diagnosis tool by its good sensitivity for the microbial condition in reactor, the simultaneous application of DO and ORP was recommended for the stable control of SBR.

악관절 습관성 탈구에 대한 외과적 악관절경술의 임상 성적

최도현,허원실,정 훈 대한 두개하악 장애학회 1999 대한두개하악장애학회지 Vol.11 No.2

In treating habitual dislocation of TMJ, generally there are two ways; conservative and open surgery, Conservative treatment has a high recurrence rate and open surgery involves surgical invasion. Consequently, many results of conservative and open surgery were unsatisfactory. Arthroscopic surgery for habitual dislocation of the TMJ solved the problems above. It is useful due to little recurrence, reducing surgical invasion and simple technique. Arthroscopic surgery was performed for on 18 cases out of 19 joints of patients who visited out hospital from May, 1989 to June, 1995. 18 cases of 19 joints after initial surgery showed good results and only one joint had recurrence. Even that one case improved after secondary arthroscopic surgery. Therefore, surgical arthroscopy is thought to be the best method for habitual dislocation of TMJ.

하악골 결손부의 골형성에 미치는 Bioplant HTRⓡ의 영향

최도현,유선열,김옥준,허원실 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.1

The present study was performed to investigate the effect of HTR□ (Hard Tissue Replacement) on osteogenesis in the mandibular bone defects. Eight adult male white rabbits weighing 2.5 to 3.0kg were used. Four bone defects (8mm in diameter and 4mm in depth) were made at the both mandibular body. In the control group, the right mesial bone defect was filled with blood clot and spontaneously healed, In the DFDB group, the right distal bone defect was filled with xenogenic demineralized freeze-dried bone. In the HTR□ group, the left mesial bone defect was filled with HTR□. In the HTR□-membrane group, the left dis- tal bone defect was filled with HTR□ and covered with BioMesh membrane. The rabbits were sacrified at 2,4,6 and 9 weeks after the operation and microscopic examination was performed. Results obtained were as follows: In the control and DFDB groups, inflammatory cells and the fibrous connective tissue existed and the bone growth was slower than HTR□ group by 6 week, and there was intervention of the soft tissue at 9 week. In the HTR□ group, bone trabeculi extended between the HTR□ particles without intervention of inflammatory cells and the connective tissue at 4 and 6 weeks. In addition, extensive osseous ingrowth into the HTR□ particles was observed at 9 week. Bone formation was more active in the HTR□ group than the control and DFDB groups. There was not obvious difference in the bone healing rate between the HTR□ and the HTR□-membrane group. These results suggest that the HTR□ promotes osteogenesis in the bone defects and the HTR□ group has no difference in comparison with the HTR□-BioMesh□ membrane group in bone healing.

재조합 균주 Bacillus subtilis LKS88에 의한 Streptomyces albus KSM-35 Amylase의 생산조건

최원진,유도진,이재우,소명환,김영배 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.4

Streptomyces albus KSM-35의 amylase의 유전자를 Bacillus subtilis LKS88에서 발현시킨 균주를 사용하여 amylase의 생산에 미치는 몇가지 요인들을 조사하였다. 본 실험에 사용한 탄소원들중에서 sodium citrate와 왕겨의 효소 생산량이 가장 높았고, 이들을 1:1의 비율로 혼합하여 첨가하였을 때 효소의 생산량은 대조군으로 사용한 가용성 전분에 비하여 20배 이상 증가하였다. 질소원으로 대두박을 사용하였을 경우 yeast extract의 첨가량을 줄이면서 효소의 생산량을 증가시켰다. 배양을 위한 초기 pH를 60으로 조절하고 SDS를 0.01%첨가하였을 때 대조구조보다 높은 효소 생산량을 나타내었다. Bacillus subtilis LKS88 (pASA240)을 sodium citrate와 왕겨 각각 1.5%, K_2HPO_4 0.66%, yeast extract 0.3%, 대두박 0.7%, SDS 0.01% 및 초기 pH를 6.0으로 조절한 배지에서 37℃에서 배양시 최대 효소 활성은 배양 후 36시간에서 나타났으며 이때 효소 활성은 56.6 U/ml이었다. The effects of culture conditions on the production of amylase expressed by Bacillus subtilis LKS88 with a cloned gene from Streptomyces albus KSM-35 were investigated The production of amylase was increased significantly by using sodium citrate and rice hull as a carbon source. In addition, the use of a mixture of sodium citrate and rice hull(1:1) resulted in increase of enzyme production by 20-fold when compared to that of soluble starch. The soybean meal as the nitrogen source could be partially replaced with yeast extract without changing the enzyme production yield. The amylase production was also increased by adjusting initial pH to 6.0 or by adding 0.01% SDS. Maximum amylase production was observed in the medium containing 1.5% sodium citrate, 1.5% rice hull, 0.7% soybean meal, 0.3% yeast extract, 0.66% K_2HPO_4, 0.05% MgSO_4·7H_2O, 0.08% CaCl_2·2H_2O, 0.01% SDS with initial pH of 6.0. The maximum yield of amylase reached 56.6 U/ml when B. subtilis LKS88(pASA 240) was cultured at 37℃ for 36 hr.

선천성 승모판 협착증을 동반한 성인 대동맥축착의 스텐트 삽입술 1례

최승혁,이상학,김명곤,임세중,이도연,심원흠 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.5

프로골프 갤러리들의 참여동기 : 탐색적 분석

최재원,박두용 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study is to deeply analyze in order to research the participation motive of the audience for each the event about the reeson why audience participate for Pro-Golf. The analysis about participation motive of audience for prfessional baseball is based on the analysis about the sport participation motive of teenage players ,the thesis of Sung chang-hyun(1996) and analysis about watching factor audience for pro-golf Kang sung-gu (2003). For the basic environmental examination of the collected materials we used SPSS-WIN 11.0 and examined the frequency of general character with using analysis of frequency in the basic statistics. Concretely, meaningful materials related to the participation motive was classified into detailed area. And we used 3 steps classes and methods which integrate into general theme. We had 2 psychologists and a man who experienced qualitative analysis in order to be justified in the method of this study. We had meeting with people. After we read participants' response to this examination, we also investigated it many times. We'll find out the classified factor through this research when more than 3 people participate in this study. We'll analyse meeting in which more than 3 specialists participated in order to increase classify about participation motive of audience of Pro-Coif and confidence. 1. The participation motive of the audience for the golf game was divided into B types of general fields such as the pleasure(amusement), deputy learning, environment, event, leisure activity, and health, and then classified again into 19 types of detailed fields. 2. n case of the golf game, the pleasure was appeared to be the most important factor for observing the sports event, and the next factor was shown as the deputy iearning. The special feature of the golf observing is that the audience can come along with the golfer in the whole golf ground and also they can enjoy the environmental benefit of the golf course. Thus, it was known that the environmental factors of the golf courses become the principal factor which induces the audience into the golf ground. 3. The audience of the sports event relieve their stress and enjoy their leisure by watching the sports event, and also they can experience the deputy learning while seeing the sports event. Consequently, it is needed to develop and invest the new function and service event which can participate people before or after the sports event itself.

사용자 수술명과 수술분류 code(ICD-9-CM) 일치율 향상에 관한 연구 : 수술실 OCS program 사용 활성화를 통하여

최향하,김미영,김도진,유지원,장정화,박수정,박재성 한국의료QA학회 2005 한국의료질향상학회지 Vol.12 No.1

Background : The necessity of unify and standardize codes used at hospital has been emphasized since OCS (Order Communicating System) was adopted. Therefore, the purpose of this study were to standardize operation code by continuous training of the ICD-9-CM code that is used as standard code in OCS program at operating room. Method : In 400 operation data, operation code entered in OCS program at operating room was compared to operation name recorded in medical record. In addition, a matching rate between input data of operation code by medical record department and computing input data of operation code in 3,710 cases was compared for each department. User operation name and operation code were matched and major diagnosis by operation department and operation name were also matched. Results : User operation name was reflected in operation classification code in detail, and operation code entered on user was registered. Input rate and matching rate of operation code were gradually improved after improvement activity. In particular, a matching rate was high at ophthalmology where operation name is segmented. Plastic surgery and orthopedics with a lot of emergency operation and comprehensive operation name show low input rates. Conclusions : As the medical field makes progress in computerlization, awareness of information exchange and sharing becomes higher. Among codes to classified medical institution, codes related to surgical operation are all different by user of hospital and department. Computerlization and standardization is essential. And when efforts of standardization continue in alliance with individual hospital and institution, initiative of preparing medical policy data at a national level will be accelerated.

자바 가상 기계를 목적으로 하는 C컴파일러 설계

최원호,정민수,김도우 경남대학교 정보통신연구소 1999 연구논문집 Vol.1 No.-

요즘 각광 받고 있는 정보통신 분야에서는 무선 네트워킹, 홈 네트워킹, 오피스 네트워킹 등 특정한 플랫폼과 네트웍 디바이스에 상관없이 서로 정보를 주고 받고 있다. 그리고 일반 가정에서도 쉽게 디지털 TV나 휴대폰 등에서 인터넷에 접속하여 정보를 얻을 수 있다. 이런 서로 다른 이기종 플랫폼에 영향을 받지 않고 사용할 수 있는 것이 바로 자바이다. 본 논문에서는 자바만이 가지는 플랫폼 독립적인 특성을 C언어와 같은 고급 언어에 적용해 보고자 한다. 이를 통해서 기존 C언어로 작성된 소프트웨어를 본 논문에서 설계한 컴파일러를 통해 소프트웨어의 재사용성을 높이면서 자바만의 특성을 가지게 할 수 있다. 즉, C언어로 작성된 원시 코드(Source code)를 컴파일러를 이용해서 자바 가상 기계가 인식할 수 있는 목적 코드인 바이트 코드(Byte code)로 변환하고 이를 자바 가상 기계(Java Virtual Machine)가 탑재되어 있는 어떠한 플랫폼에서도 수행할 수 있도록 하는 것이다. 따라서, 본 논문에서는 C언어로 작성된 응용 프로그램을 이기종 플랫폼 상에서 실행 가능 하도록 바이트 코드를 생성하는 컴파일러를 설계한다. The platform independence is the hot issues in the world information and communications, such as wireless networking, Home networking, Office networking. Java is an solution of platform independence. In this paper, we apply the platform independence features of Java to high level language, such as C. In other words, we design a compiler that reads C code and produce bytecodes. Hence, the software written C can be translated into bytecode and can be executed under Java virtual machine.

Bifurcated Stent-Graft(Vanguard)를 이용한 복부 대동맥류 경관적 치료

심원흠,최상돈,윤영섭,이도연,장병철 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.9

원발성 중추신경계 임파종 : 치료 및 생존율 Treatment and Survival Rate

남도현,이상형,김동규,정희원,지제근,왕규창,김현집,최길수,한대희 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.3

The authors report on 17 patients having primary central nervous system(CNS) lymphomas between January, 1981 and August, 1992. All patients were treated at Seoul National University Hospital. Only three cases underwent surgery only and fourteen cases underwent surgery and radiation therapy with or without chemotherapy. There were no immunosuppressive patients. Sixteen patients were analyzed for survival studies, because one case was lost during follow-up. The median survival time(MST) was 26 months and one- and two-year survival rates for the 16 patients were 87.5% and 65.6% respectively. The rate of survival was analyzed according to possible prognostic factors ; age and sex, multiplicity and location of tumors, preoperative Karnofsky performance score(KPS), pathological subclassification, type of surgery, preoperative steroid therapy, postoperative adjuvant therapy, extent of radiation, chemotherapy and the degree of response to treatment at three months follow-up. Postoperative adjuvant therapy and the degree of response to the treatment correlated with survival. Fourteen patients who underwent postoperative adjuvant therapy had a median survival time of 63 months. The one- and two-year survival rates were 100% and 75% respectively compared to the MST of 1.5 months with survival rates of 0% and 0% retrospectively for the two patients who did not. A higher long term survival rate was observed in the group with better immediate responses. In nine of 16 patients with complete responses, the MST, one-, and two-year survival rates were 63 months, 100%, and 83% respectively. The authors suggest that preoperative application of steroids may be considered in case of clinically suspected primary CNS lymphomas. It is concluded that after obtaining the tissue diagnosis of primary CNS lymphomas, radiotherapy with or without chemotherapy should be performed until the complete response.