흰쥐에 있어서 철분의 과량투여가 정소 및 혈장의 지질과 VitaminE함량 그리고 정소조직에 미치는 영향

박수봉 경북대학교 1984 국내석사

하이브리드 집열기 공기채널 내 전열촉진체 형상에 따른 열적성능에 관한 수치해석 연구

박수봉 부경대학교 산업대학원 2015 국내석사

As a part of the effort for increasing usage of solar thermal energy, the research about hybrid solar collector that can heating air and liquid simultaneously has been conducted. In the previous study, the performance like temperature difference, heat transfer rate, thermal efficiency was investigated when this collector was heating air and liquid respectively and simultaneously. From these previous studies, the necessity for enhancing the air heating performance was confirmed and it was considered to achieve the improvement of air heating performance by changing of obstacles for heat transfer enhancement like a fin can be achieve this improvement. So in this study, numerical analysis was conducted in air channel of hybrid solar collector with various obstacles for heat transfer enhancement from absorb to flow air. As obstacle, v-groove, protrusion, vertical fin was installed and heat transfer and pressure drop was investigated with these obstacles with various conditions of obstacle. As a result, v-groove type and vertical fin was shown higher Nusselt number than traditional fin type, but this increment of heat transfer performance also lead to higher pressure drop represented as friction factor. The performance factor(PF) consider both heat transfer performance and pressure drop was shown higher value with v-groove type. But the vertical fin was shown lower performance factor than traditional type and it means that increment of pressure drop is higher than increment of heat transfer performance compared with traditional fin type. In case of protrusion, it show higher performance factor than traditional fin type. But the heat transfer performance of protrusion is similar with traditional type, so the higher performance factor was come from decrement of pressure drop, not the increment of heat transfer. From these results, v-groove type was considered as appropriate type and it is expected that the improvement of air heating performance can be achieved by applying v-groove obstacle to hybrid solar collector.

활어 이송용 예인 가두리 시스템 개발

박수봉 부경대학교 2014 국내석사

Nowadays, consumption of fisheries products is increasing. There are several factors, one of which is a quantitative development through aquaculture. Another factor is an increase qualitative consumption of fish which require that fish be supplied the live. This is required a lot of technical effort to transport the live fish that have low survival rate(c.f. tuna and mackerel) in coastal waters and the open sea. In this study, the research for the development of the towing cage system for transporting the live fish was tested in simulation. The cage system is designed by using a computer tool. The tension and spread performance of the cage system were measured. The simulations were conducted with 30 degrees angle of kite and towing speeds of 1.0 to 3.0 knots at 0.5 knots intervals. The results of simulations were as follows; 1. In order to vertical spread, floats attached at the upper part of the cage, and iron chains attached at the lower part of the cage. For horizontal spread, canvas kites attached on the both side of the cage. 2. The tension of the cage was tended to increase with increased towing speeds. 3. The reduction ratio of inside volume of the cage was tend to increase with increased towing speeds. 4. The suitable operation condition in towing cage system was 2 knot towing speeds wih vertical spreading force 885kgf, horizontal spreading force 567kgf; in this case the ratio of the inside volume reduction of the cage was estimated as 25%.

기독교사회복지의 실태와 전망 : 인터넷을 통해 본 한국교회의 사회복지 참여 실태

박수봉 광주대학교 경상대학원 2001 국내석사

한국기독교는 선교초기 한국 근대화 과정에서 사회복지 분야에 많은 역할을 감당했다. 그러나 선교 2세기를 맞은 한국 교회는 외적인 놀라운 성장에도 불구하고 날로 심각해져 가는 사회문제에 능동적으로 대처하지 못하고 부와 권력의 상징으로 사회로부터 외면당하고 비판받고 있다. 이러한 문제의식에서 본 논문은 첫째, 한국 기독교의 사회복지 역할을 살펴보고, 두 번재, 현재 한국 교회의 사회복지 참여 실태를 조사하여, 셋째, 한국기독교사회복의 보다 나은 기여 방법을 제시하려고 한다. 연구방법은 기독교사회복지의 이론적 근거는 교회의 기능(친교적 기능)과 성서속의 사회복지 사상, 서양의 기독교사회복지 역사 그리고 한국 기독교의 사회복지 역사, 특히 지방화시대의 한국 교회의 복지 과제에 대하여 문헌조사를 통해 제시했다. 실태조사는 인터넷에 등록된 한국 교회 홈페이지 1,101개를 검색하여 관련자료를 수집했다. 이러한 조사 방법은 한국 교회 전체의 현상을 반영한다고 볼 수 없고, 실제 실시하고 있으나 홈페이지에 내용이 없는 경우, 또한 조사기간 이후에 새로운 내용이 추가될 가능성이 있다는 한계점이 있다. 하지만 설문조사에 비해 조사자의 관점이나 편견을 배제하여 비교적 정확하고 객관적인 자료를 파악할 수 있고, 전국적인 조사를 실시할 수 있다는 장점이 있다. 인터넷 홈페이지 조사 결과의 단점을 보완하기 위해서 예장총회에서 1993년에 2,008개 교회를 설문 조사한 결과와 비교 검토했다. 조사 결과의 주요 특징은 첫째, 조사대상 교회의 사회복지 참여율이 매우 저조하다는 것이다. 검색된 교회 1,101개 가운데 55개 교회만이 사회복지와 관련된 내용이 있는 것으로 나타났다. 둘째, 참여 교회의 프로그램이 단순, 비전문적이라는 것이다. 검색된 교회 55개 가운데 41개는 비교적 접근이 용이한 대상으로 주로 공부방, 장학사업, 무료급식, 노인대학과 같이 경비도 적게 들고 교회입장에서 접근하기 쉬운 프로그램 위주로 실시하고 있었다. 이와 같은 한국 교회의 사회복지 참여와 부정적인 측면을 극복하기 위해서는 무엇보다 인식의 전환이 필요하다. 이제 교회는 내적인 문제뿐만 아니라 외적인 부분에 눈을 돌리고 행동으로 옮겨야 한다. 실천에 있어서도 단순한 시혜를 베푸는 차원에서 벗어나 과학적이고 전문적인 접근과 교회의 여건에 맞는 프로그램을 계발해야 한다. 또한 이러한 프로그램을 관리하는 사회복지 전문인력의 고용 등 실질적인 노력이 요청된다. The Korean christianity has played many important roles in the field of social welfare in the process of modermization of Korea at the early stage of missionary work. However, the Korean church which met the 2 centuries of missionary work could not have coped actively with the social problems which have become more serious day by day in spite of its incredible external growth. Thus, the Korean church has been turned away and criticized from the society as the symbol of wealth and authority. From this problematic consciousness, this study made an attempt to examine the role in social welfare of Korean christianity firstly. Secondly, this study tried to investigate the reality of participation of Korean church currently. Thirdly, with this result, this study tried to suggest the much better method of contribution to the Korean christian social welfare. As for the research method, the theoretical base was suggested through the philological research into the function of church, that is the function of friendship, the thought of social welfare within the Holy Bible, the history of social welfare of christianity in the western world, and the history of social welfare of Korean christianity, especially, the welfare task of Korean church in the age of localization. As for the reality investigation, this study made searches for the 1,101 home pages of Korean churches which have been registered at the internet and collected the related data. It cannot be thought that this kind of investigation method can reflect all the phenomena of the whole Korean churches. Besides, this kind of investigation has some limitation that there are some cases where no contents exist at all at home pages though some churches actually perform the welfare task, and there are some possibilities that new contents can be added after the investigation period. However, compared with the questionnaire investigation, this method has some merits that relatively correct and objective data can be grasped by eliminating the investigator's viewpoint or prejudice, and, moreover, the nationwide investigation can be executed. In order to complement the weakness in the result of investigating the internet home pages, this study examined the result of making questionnaire investigation about 2,008 churches by the General Assembly of Jesus Presbyterian Church in 1933, and compared with the result. As for the major characteristics of the result of investigation, firat, the participation rate of social welfare of the churches which were targeted for investigation was very low. It appeared that only 55 churches among 1,101 churches which were searched for had contents that were related with social welfare. Second, the programs of participated churches were simple and were not specialized. The 41 churches among 55 of the searched churches were primarily executing some accessible programs for the target objects such as study rooms, business of encouraging learning, free provision of meals and college for old people. For these services, the expenses cost little and accessibility was comparatively easy in the position of churches. In order to get over the negative aspect in participating in the social welfare work by the Korean churches like this, most of all, the conversion of recognition is necessary. Now, the churches in these days should turn their eyes not only to the internal problems but also to the external problems, and move it to the real action. In the actual practice, the programs where scientific and specialized approach are possible and which fit for the conditions of churches should be developed by getting out of the dimension where the simple charity is bestowed. In addition, some practical efforts such as employing some specialized personnel for social welfare who have competence to manage these programs, and so forth, are required.

Personal computer의 通信用 音響結合器에 關한 硏究

박수봉 朝鮮大學校 1983 국내석사

A modem of the acoustic coupler is designed to use in public telephone system, and the invastigation is made on its characteristics. The circuit is designed so as to enable the two wire switch board channel to be acoustically coupled to this modem of 300BPS and of RS-232-C interface. The rate of bit error does not come up to the theoretical value even when the system is in normal condition. When the S/N ratios are 10㏈, and 12㏈ the rates of bit error are 10^(-0.2) and 10^(-1), while the theoretical maximum rates of bit error are 10^(-0.5) and 10^(-1.8) respectively. The rates bit error are 10^(-3) and 10^(-5) respectively, when the S/N ratios are 15㏈ and 18㏈. This proves that the rate of bit error can be sharply decreased by the improvement of the S/N ratio.

Highway Bridge Fire Risk Analysis and Countermeasures

박수봉 忠南大學校 大學院 2015 국내석사

지난 수십여 년 간 국내외 교량 화재사고로 인하여 다수의 고속도로 교량의 붕괴가 발생하였다. 이는 인적 피해뿐 아니라 교통 통제 및 우회도로 조성 등에 의해 사회적-경제적으로 상당한 손실을 일으킨다. 따라서 본 연구는 화재 위험도 평가를 수행함으로써 국내 고속도로 교량의 화재위험도 등급을 분류하였으며 대응책을 제시하였다. 위험도 분석 방법으로는 예비위험분석(Preliminary Risk Analysis, PRA), 기본위험분석(Simplified Risk Analysis, SRA), 상세위험분석(Detailed Risk Analysis, DRA) 세 단계를 사용한다. 먼저 예비위험분석에서는 스크리닝(Screening) 작업을 실시하여 위험도 분석이 ‘필요’한지 ‘불필요’한지를 판단한다. 예를 들어 교량 하부에 화재가 발생할 만한 요인이 부족하다면, 합리적인 분석이 수행되지 않을 것이다. 따라서 PRA 단계에 적절한 인자들을 선정하여 위험도 분석을 수행한다면 시간적-경제적으로 큰 도움이 될 것이다. 다음은 PRA단계에서 ‘필요’로 나온 교량에 한해서 기본위험분석을 수행한다. 기본위험분석에서는 화재의 발생가능성, 취약성, 교량의 중요도 관점으로 인자들을 선정하였다. 이후 본 연구에서 제안된 위험도 분석방법을 사용하여 위험도 등급을 Low Risk(RL), Moderate Risk(RM), High Risk(RH)로 분류하게 된다. 위험도 등급의 급간은 다양한 연구에서 사용되어진 자연적 구분법(Natural Break based Interval, NBI), 등간격법(Equal Interval, EI), 표준편차법(Standard Deviation based Interval, SDI)과 신뢰도법(Reliability based Interval, RI) 총 4가지 분류법을 사용하였다. 다음은 국내에 발생한 화재 사고사례를 조사하여 실제 손상도 등급을 산정한 후 각 급간 분류법(자연적, 등간격, 표준편차, 신뢰도법)을 수행하여 나온 위험도 등급과 비교 검토를 하여 급간 분류법을 제안하였다. 시뮬레이션 결과 각 급간 분류법의 특징을 반영하는 결과값이 나타났다. 따라서 위험도 분석의 목적 및 재난 별 데이터의 형태 등을 고려하여 급간 분류법을 사용하는 것이 바람 직 할 것이다. 마지막으로 위험도 등급이 RH가 나온 교량에 한해서 상세위험분석을 실시하여, 위험도 등급을 낮추기 위한 다양한 개선방안을 모색하게 된다. 이후 보완이 된 교량에 한해서 다시 위험도 등급을 재평가하게 된다.

死後 貯臧溫度가 韓牛筋肉의 理化學的인 變化에 미치는 影響

박수봉 建國大學校 農畜大學院 1993 국내석사

본 연구는 사후 저장온도 0-30℃가 한우근육(M.sternomandibularis 와 M.mastoideus)의 생화학, 물리학적 변화와 육질에 미치는 영향을 조사하였다. 1. 저장온도 0℃에서는 10℃와 15℃보다 초기에 빠른 속도로 pH가 떨어지다가 10시간 이후부터는 서서히 떨어져 가장 늦게 최종 pH에 도달 하였다. 30℃에 저장한 근육은 10시간 이내에 최종 PH에 도달하였다. 2. 0℃에 저장한 근육은 처음부터 빠른 속도로 R-value가 상승하였으며, 10℃에 저장한 근육은 10시간까지는 낮은 R-value를 나타내다가 서서히 상승하여 20시간 후 최고치에 달하였다. 3. 0℃에 저장한 근육은 10시간후 약 46% 수축하였으며 10-20℃에 저장한 근육은 15시간후 약 17% 수축하였다. 4. 한우육의 근절의 길이는 10℃에서 수축이 가장 적었으며, 저온수축과 고온수축이 발생한 0℃와 30℃에서는 저장 5시간후 1.60-1.63㎛로서 18-20%, 24시간후에는 45-46% 수축하였다. 5. 도살후 24시간 0℃와 30℃에 저장한 육은 10℃에 저장한 육보다 전단력이 2배가량 높은 것으로 나타났다. 6. 도살 후 24시간 10℃에 저장한 육은 9일 저장 후 drip발생이 3% 이하로 가장 적었으며, 저온수축(O℃)과 고온수축(30℃)이 일어난 육은 drip 발생이 높았다. The influence of the storage temperature between 0℃ and 30t on the biochemical, physical changes and meat quality in the red muscle (M. sternoman dibularis and M. mastoideus) of Korean native cattle postmortem were studied. The results obtained were summarized as follows: 1. The storage muscle reached the final pH slowly after 10 hrs as it was dropped faster in stor age temperature 0℃ than in 10℃ and 15℃. The muscle which was stored in 30℃ reached the final pH within 10 hrs. 2. The muscle which was stored in 0℃ showed the increased R-value at fast speed from the beginning. It reached maximum R-value after 20 hrs as it gradually increase showing low R-value by 10 hrs in 10℃. 3. The muscle which was stored in 0℃ was contracted about 46% after 10 hrs. It was contracted about 17% after 15 hrs in 10 ~ 20℃. 4. The sarcomere length of Korean native cattle had the least contraction in 10℃ and it was contracted 18 ~ 20%(1.60~1.63㎛) after 5 hrs, 45 ~ 46% after 24 hrs beteen 0℃ and 30℃ which was generated cold shortening and rigor shortening. 5. The meat that was stored in 10℃ and 30℃ showed about 2-fold higher shear force than it that was stored in 10℃ at postmortem 24 hrs. 6. The meat that was stored in 10℃ showed drip loss less than 3% at postmortem 24 hrs. The meat that was generated cold shortening and rigor shortening showed the high drip loss.

퍼지논리와 강화학습을 적용한 트롤 시스템 제어

박수봉 부경대학교 2018 국내박사

In this study, a trawl fishing simulator was developed for various fishing industries in response to the demand of educational institutions and fishery-related companies for automated system operations. In education institutions and fishery-related companies, fishing simulators are used to conduct training to acquire indirect experience on fishing. Training with fishing simulators not only decreases time and costs, but also allows training in various environments. Owing to these advantages, the demand for fishing simulators for education and training is increasing. Therefore, in this study, a trawl fishing simulator was developed based on software in which the trawl operation process can be smoothly run in both personal desktop computers and laptops. Also, an optimized analysis technique was developed through which the dynamic behavior generated by the interaction between fishing vessels and gears can be analyzed in the time domain. The developed trawl simulator can be used for education and training on the entire trawl fishing process, from fish scouting to catching. Unlike previously developed fishing simulators, it has no spatial constraints because it does not require many computers or large hardware, and is also easy and simple to use. Therefore, it shall be very useful for educational institutions and fishery-related companies when providing education or training on trawl operations. In trawl operations, controlling the depth of trawl fishing gears is the most important factor that determines whether fish will be successfully caught or not. It is necessary to accurately estimate the location and depth of the target fish school, control the direction and speed of the trawler, and cast the fishing gear at the exact depth of the target fish school. To automate this process, 3D control methods that allow simultaneous control of the trawler direction and depth of the trawl fishing gear are required. Therefore, in this study, fuzzy control rules were applied to the trawl simulator for the automated control of the trawler direction and depth of the trawl fishing gear. The results of 3D control of the trawl fishing gear by applying fuzzy control rules reveal that the depth of the trawl fishing gear was controlled with an error of less than 5%. Therefore, it is expected that the process of controlling the depth of the trawl fishing gear by adjusting the warp length and controlling the direction of the trawler during trawl operations can be automated. Also, if a conversion device is developed that allows the application of the designed fuzzy control rules to sonars, fish finders, steering gears, and fishing winch systems equipped in actual trawlers, then 3D control of trawl fishing gears using fuzzy control rules will be possible in actual trawl operations. During trawl operations, if fishing gears are cast too early or too late, variations occur in the catch rate and fuel consumption. Therefore, the trawl fishing gear must be cast at the right time to not only draw the target fish school accurately but also to maintain fuel consumption at proper levels. In this study, a Deep-Q-Network was applied to the developed trawl simulator to estimate the appropriate casting time of the trawl fishing gear. The appropriate casting time was estimated by performing a total of 5,000 reinforcement learning sessions. The compensation value gradually increased as the number of reinforcement learning sessions increased, and the optimum trawl gear casting time estimated using the compensation value determined after 5,000 reinforcement learning sessions was applied to the trawl simulator. When the trawl fishing gear is cast at the estimated casting time, the location of the target fish school can be trawled more accurately, and the fuel consumption can also be maintained at proper levels. In the future, applying this reinforcement learning algorithm to actual trawl operations is expected to increase the catch rates of inexperienced executive crews by helping them learn the skills of experienced executive crews.

敎育的 관점에서 본 體罰에 관한 연구 : 사례 및 판례를 중심으로

박수봉 경상대학교 1999 국내석사

정보화사회에서 법의식에 영향을 미치는 요인 : 중.고등학생 비교를 중심으로

박수봉 한국교원대학교 1999 국내석사