This study was conducted to investigation species of microbes collected form SMS(spent mushroom substrate) of oyster mushroom. SMS samples were collected from two farms and mushroom research Institute in Gyeonggi-Do. 52 microbial isolates form SMS of oyster mushroom were collected. 24 of these isolates identified Bacillus sp. By using 16s rDNA. Among the isolates, Bacillus sp. was the most abundant with 46% of total isolates, followed by Lactococcus sp. with 20% and Saccharomycetales contained Galactomyces sp. with 19%. To define the optimum conditions for the cell mass of major isolates collected from SMS of oyster mushroom, we have investigated optimum culture condition such as pH, temperature, and incubation time. Optimum initial pH, temperature and incubation time of Bacillus sp. were determined as pH 6.0, 25°C and 48 hours, respectively. In the Lactococcus sp, optimum initial pH 6.0, optimum initial temperature 35°C and optimum growth period 48 hours. Optimum initial conditions of Saccharomycetales were investigated as pH 7.0, temperature 25°C and growth period 36 hours, respectively.

목 적 : 상복부 MRI 검사에서 고식적인 cDWI는 조영증강 전후의 정량분석, 정성분석에 큰 차이가 없다는 보고가 있으며, 조영 증강 후 cDWI가 많이 이루어지고 있다. 이에 Gadoxetic acid(Primovist)를 사용하기 전후 SMS-DWI의 차이를 알아 보고, 조영 증강 후 SMS-DWI와 cDWI를 비교하여 SMS-DWI가 cDWI를 대체하여 시간감소에 유용한지 알아보고자 하였다. 대상 및 방법 : 2016년 12월부터 2017년 2월까지 본원에서 간 자기공명영상검사를 시행한 환자 35명 (남: 24명, 여: 11 명, 평균연령: 59세)을 대상으로 후향적으로 분석하였다. MR system은 3.0T Magnetom Skyra(Siemens Healthineers, Germany)를 사용하여 조영 증강 전 SMS-DWI, 조영 증강 후 SMS-DWI와 cDWI를 스캔하였다. SMS-DWI의 영상매개 변수는 TR 2900 msec, TE 61 msec, 34 slice, slice thickness 5 mm, matrix 128 × 128, FOV 400 × 400이었고, cDWI 의 영상매개변수는 TR 6400 msec, TE 58 msec, 34 slice, slice thickness 5 mm, matrix 128 × 128, FOV 400 × 400이었으며, free breathing 상태에서 스캔을 하였다. ADC map을 이용하여 간, 비장, 신장에서 ROI를 측정하였고, SPSS를 이용 하여 Paired sample t-test, Pearson’s correlation, Shapiro-Wilk test를 이용하여 정량분석을 하였다. 결 과 : cDWI와 SMS-DWI의 스캔시간은 각각 6 분 15 초와 2 분 56 초였다. 조영 증강 전후의 SMS-DWI에서 간, 비장, 신장의 ADC 값은 통계적으로 유의한 차이를 보이지 않았으며(p = 0.494, p = 0.822, p = 0.447). 조영 증강 후 SMSDWI와 cDWI의 간, 비장, 신장의 ADC 값은 SMS-DWI에서 평균값이 통계적으로 유의하게 낮았다(p < 0.01, p < 0.01, p < 0.01). 결 론 : 검사시간은 cDWI와 비교하여 SMS-DWI에서 약 47% 감소하였으며, gadoxetic acid는 SMS-DWI의 영상에 큰 영향을 미치지 않았다. 조영증강 후 SMS-DWI와 cDWI는 통계적으로 유의하여 SMS-DWI는 cDWI를 대체하여 검사시간을 단축시키는 데 도움이 될 것으로 사료된다.

Spent mushroom substrate (SMS) has generally been used for the manufacture of animal feed and production of bio fuel. Limited research has been conducted in the utilization of SMS as a co-material for composting. Therefore, the main purpose of this study was to evaluate the feasibility of composting vegetable waste mixed with various ratios of SMS (30, 40, and 50%). The results showed that the C/N ratio decreased when both sawdust (from 22.0~28.8 to 17.7~20.4) and SMS (from 18.5~19.5 to 12.7~16.8) were applied for composing, owing to increased contents of nitrogen. A maturity test conducted using mechanical (Solvita) and germination tests revealed that both sawdust (92.0~101.9%) and SMS (87.8~89.2%) satisfied a criteria of maturity standard (70%). A correlation analysis between compost maturity and its chemical properties revealed that the C/N ratio and pH were the most dominant parameters for compost maturity. Overall, SMS could be utilized as a compost material and especially, vegetable waste mixed with SMS could provide sufficient nutrients for crop growth.

Continued efforts to build up Safety Management System(SMS) and to improve its efficiency in airports, to which customers have direct access, are taken for granted due to continuous development of the aviation industry in both quantity and quality and rapid growth of air transportation market. This thesis proposed efficient operation methods of SMS for domestic airport organizations including Incheon International Airport(IIA), the largest airport in South Korea, aiming at strengthening aviation safety from the perspective of airport operators who play a pivotal role in service provider SMS. Those are consolidation of the existing safety management organizations and various improvements to promote voluntary incident reporting system. To draw a proposal for the improvements, conducted a research on domestic safety management status, carried out an analysis on operating conditions and did a research on ICAO regulations, domestic legal system as well as statistics data. Relevant studies and researches were also gathered and analyzed. A search for further improvements can also help increase operational efficiency and promoting a higher-level of safety awareness among operators can establish mature safety culture at airports.

Advanced Safety Management System(SMS) of Korea Railroad Corporation for risk management should be established applying contents-centered domestic standard according to Railway Safety Act and process-centered international standards suggested by Lloyd's Register Company. Besides, laws, regulations, guidelines and manuals which are optimized for each sector should be systematically integrated to strengthen the consistency of SMS of KORAIL. New safety regulations and guidelines for safety management/train operations/maintenance should be established according to the safety policy of KORAIL to boost effective field work by regulations, guidelines, manuals, etc. The advanced Safety Management System will lead KORAIL as a competent global enterprise with its boosted reputation in the international railway market.

Recently, the various information according to the company management is originated in the change of the rapid company environment. And the necessity of the administration,that is systematic and efficient toward the various document of a form, is gradually increased. At the same time, the efficient management ability of the various standard document obtained the specialized quality authentication system including the ISO/TS16949, ISO14001, quality 5 star, and etc., it maintains occupies the very important part as to the company management. This research suggests the standard business process of the auto part supplier for the efficient management of the standard document. In addition, by building and managing the standard management system will be able to expect the more efficient document management and the product reliability insurance.

According to Korea was re-elected as ICAO council member state at the 35th session of the assembly, there are more contributions and roles of international aviation society. Being developed technology and grown international transportation, world is focusing to aviation safety, Safety Management System(SMS) is systematic approach to manage risks caused by human and organizational factors. ICAO is specified that 'As of 24 November 2005, certified aerodrome shell have in operation a safety management system.' at Annex 14 to implement it airports as a first step. This study introduced SMS principle, analysed SMS's of advanced states and developed appropriate Korean Aerodrome SMS Model in our cultural and industrial circumstances.

목적: 본 연구에서는 한국형 스포츠동기척도(SMS-K)의 타당도를 강화하는 단계로서 구체적으로 살펴보면 운동선수, 생활체육참가자, 남성, 여성들의 스포츠 참여동기를 측정할 수 있는 척도로서 활용가능한지 즉 운동수준과 성별이 상이한 집단에서 SMS-K를 사용할 수 있는지를 확인하는데 목적이 있다. 또한 본 척도를 통해 측정된 동기는 크게 무동기, 외적동기, 내적동기 세 가지 수준으로 나누어지고 아울러 외적동기는 4가지 요인(외적조절, 내사조절, 확인조절, 통합조절)으로 세분화 될 수 있는지를 확인함으로써 외적동기의 위계적 모형을 검증하는데 목적이 있다. 방법: 연구의 참여자는 국내의 대학운동선수 199명과 경쟁적인 스포츠에 참여하고 있는 대학생 175명으로 구성되었다. 자료 분석 방법으로는 측정동일성분석, 잠재평균분석, 확인적 요인분석이 사용되었다. 결과: 첫째, 한국형 스포츠동기척도(SMS-K)가 선수, 일반참가자, 남성, 여성 모두가 동일하게 사용될 수 있는 척도로 검증되었다. 둘째, 운동수준, 성별에 따라 스포츠 참여동기의 유의한 차이가 나타났다. 마지막으로, 외적조절, 내사조절, 확인조절, 통합조절 요인들이 상위의 개념 ‘외적동기’에 내포되었다. 따라서 ‘외적동기’를 일차원 및 이차원으로 볼 수 있음이 검증되었다. 결론: SMS-K의 타당도가 강력하게 확인되었다. 또한 외적동기의 위계적 모형이 검증 되었다.

Purpose: The purpose of this study was to develop a sport motivation scale and to verify the validity of the developed scale. Methods: 534 athletes and non-athletes participated in this study, and for analyzing data descriptive statistics, Exploratory Factor Analysis(EFA), Confirmatory Factor Analysis(CFA), reliability test, correlation analysis. Results: The results of EFA and CFA supported the 6-factor(internal regulation, integrated regulation, identified regulation, introjected regulation, external regulation, non regulation), 24-item Korean version of the sport motivation scale. Internal consistency proven signification. Conclusion: Results support the validity and reliability of Korean version of sport motivation scale based on self-determination theory.

현재 대부분의 하천관리는 일차원 분석이 주로 행해지고 있다. 하지만 유량이나 유속이 커지는 홍수시에는 하상 및 만곡부에 큰 변화가 발생하기 때문에 일차원 분석으로는 한계점이 따르며 결과적으로 오차를 야기시킨다. 본 연구에서는 2차원 유한요소모형인 RMA-2 모형을 한강의 주요 만곡부인 이촌-반포 구간에 적용시켜 편수위 값을 구하고, 이를 기존에 나와있는 편수위 산정공식의 결과값과 비교를 했다. 그 결과, 유량이 클수록 RMA-2 모형과 편수위 산정공식의 결과값의 차이가 커지는 것을 볼 수 있었다.

The purpose of this study is to analyze the characteristics of hydraulic behavior of the natural channel flow according to the temporal classification mode, and thus propose the hydraulic analysis method for future channel design. For analysis, the temporal flow characteristics of the channel section was divided into the steady flow and the unsteady flow. For hydraulic analysis, the HEC-RAS model, which is a one-dimensional numerical analysis model, and the SMS-RAM2 model, which is a two-dimensional model, were used and the factors used for analysis of hydraulic characteristics were flood elevation and flow rate. The flow state was analyzed on the basis of the one-dimensional steady flow and unsteady flow for review. In the unsteady flow analysis the flow rate changed by (-)0.16%～(+)0.26%, and the flood elevation varied by (-)0.35%～(+)0.51% as compared to the values in the steady flow analysis. Given these results, in the one-dimensional flow analysis based on the unsteady flow the flood elevation and flow rate were greater than when the analysis was done on the basis of the steady flow. The flow state was analyzed on the basis of the two-dimensional steady flow and unsteady flow. In the unsteady flow analysis the flow rate varied by (-)0.16%~(+)1.08%, and the flood elevation changed by (-) 0.24%~(+)0.41% as compared to the values in the steady flow analysis. Given these analysis results, in the two dimensional flow analysis based on the unsteady flow, the flood elevation and flow rate were greater than when the analysis was done on the basis of the steady flow.