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A Study on the Error Compensation of Image Processing Control System using Artificial Intelligence
Get PDFIt remains simple automation on processing of the work which manufactures raw materials in a primary industry and demands much more manpower than the others category of industry.
It has developed and applied automatic machine due to reduce processing line and downsize manpower per processing line, But the operators waste a lot of time to revise size and assort the size of object when the machine is operating.
The subject is the fish head cutter which is impossible to efficient operating and inevitable stop without assort of fish size before it's operating and the processing system which is basically composed of pattern and distinguishing feature of the object and obtain to high quality object image in real time using with CCD(Charge Coupled Device) camera without the limitation and assortment of the size and especially, the important of this paper is to acquire optimum image when established controller attach on processing system and to compensate error between coordinates on the acquired image and projection on the coordinates of real processing space.
The restoration optimum image from transformation image demands compound change of image change, calendar reform, and multiple soultion calculation. This study presents that system actively deal with outside interference, vibration, movement, mechanical feature on the operating or before the operating and avoids complicated mathematical numerical expression and revise based on expert knowledge based which applies Fuzzy Logic which is one of Artificial Intelligent technique.목차
제 1 장 서론 = 1
제 2 장 퍼지이론 = 3
2.1 퍼지이론의 개요 = 3
2.2 퍼지추론 = 5
2.3 다변수 구조 퍼지시스템 = 9
제 3 장 퍼지논리를 이용한 오차보정 = 12
3.1 영상의 기본적 변환 = 12
3.2 퍼지논리에 의한 에러 보정 = 21
3.3 영상에서의 퍼지입력 파라메타의 산출 = 22
3.4 보정계수 산출을 위한 퍼지추론 = 27
제 4 장 시스템의 구현 및 실험 = 30
4.1 시스템 구성과 개요 = 30
4.2 전체 가공기의 동작 시？스 = 32
4.3 실험결과 = 35
제 5 장 결론 = 39
참고문헌 = 4
Simulation of the Fuel Injection System in Low Speed Diesel Engines
Get PDFDiesel invented the compression-ignition engine in 1892. Since that time these engines have continued to develop as our knowledge of engine processes has increased. So, nowadays they play a dominant role in the fields of automobiles, ships and some prime movers. But now worldwide concerns with global climate and environmental protection changed the trend of diesel engine researches to solve the problems how to reduce the pollutant emissions from diesel engines to meet the restrict emission regulations by the IMO(International Maritime Organization).
There are several method that reduce the emission. First of all, the fuel injection system of a diesel engine has taken more important place in understanding of diesel combustion process with combustion chamber, and has taken one of the most important part to prevent environmental pollution by exhaust gas from diesel engine. From this point of view, many investigations have been carried out to solve this problem, such as adopting higher injection pressure and shortening the injection duration by the higher injection rate, etc. Owing to this effort there are considerable improvement to solve pending issues.
But these researches are mainly on the high speed diesel engine or spark ignition engine, therefore it is worth while to study the low speed diesel engine for ship's use to compare the results which was well known for general trend by the previous researches.
In this study the analysis was carried out by simplifing and modeling the injection phenomena and dividing into three parts comprising of fuel injection pump, high pressure pipe and fuel injection nozzle in the fuel injection system of a low speed diesel engine. A computer simulation model was developed using the Runge-kutta method to solve the equations for each part(fuel injection pump, high pressure pipe and fuel injection nozzle) and the method of characteristics to analyze the unsteady flow in the fuel injection system considering cavitation and variation of fuel density and bulk modulus. Applied was the constant pressure condition at the nodes in the high pressure pipe.
Comparison was commenced between the calculated data and experimental data of pressure and injection quantity at the fuel oil distributor in fuel injection system for the training ship hanara. In the work presented here, the results of a new model which was developed about low speed diesel engine was similar trend to earlist works in the high speed engines. Simulation results about the effect of the high pressure pipe diameter, length, sac volume and efflux coefficient was also analyzed
진해만에서의 해양유류오염 방제능력 향상에 관한 연구
Get PDFJinhae bay, which is located at southeastern part of korean peninsula, is one of the sensitive waters as many kinds of marine lives are farming. In this area, environ -mental problems such as red tide have risen every year probably due to slow exchange of waters, industrial waste from factories and housekeeping along the coast and so on. In addition, it is recently expected that there exists potential oil spill disaster by ship's accident in the future as a number of vessels move in and out of the harbors of Masan and Jinhae.
In this regards, the author investigated and analyzed meteorological and hydrographic data, marine traffic data, shoreline features and stockpiles of response equipments, and finally evaluated the capabilities of marine oil spill response with the establishment of possible spill scenario.
The results of the study are as follows.
(1) In Jinhae bay, meteorological and hydrographic conditions show no unfavorable to spill response with relative weak wind and tidal current.
(2) Shorelines consist of rocky flat, man-made solid shore, beach shore and tidal flat, there are not many sensitive areas within this area. For this shore, natural recovery, low-pressure cold and warm water washing, high-pressure cold and warm water washing, manual removal, removal by sorbent and mechanical removal can be used as shoreline clean-up.
(3) Under the scenario of worst case of spill accident which can most probably takes place around pilot boarding ground north of Gadeokdo Island, numerical simulation was done to find the movement and spreading of oil slick. It is found that oil slicks move and spread southward in winter with 3.0 m/s N'ly wind & 13℃ SST and oil slick move & spread northeastward in summer with 3.0m/s SE'ly wind & 25℃ SST.
(4) With consideration of the movement characteristic of oil slick, it is computed that stockpile of boom of 7,700m in winter and 11,300m in summer and skimmers of 657.5m·ton/hour recovery rate should be kept with additional appropriate amount of synthetic organic sorbent but the use of chemical dispersant is strongly prohibited in this area.목차
List of Tables = iii
List of Figures = iv
Abstract = vi
제1장 서론 = 1
1.1 연구의 배경 = 1
1.2 연구의 방법 = 3
제2장 진해만의 주변 환경 = 6
2.1 기상·해양 조건 = 6
2.1.1 바람 = 6
2.1.2 강수량 = 10
2.1.3 기온 = 12
2.1.4 조석 및 조류 = 13
2.1.5 파랑 = 15
2.2 해상 교통량 현황 = 16
2.3 지형적 특성 = 21
2.3.1 해안선 민감지역 = 21
2.3.2 어장 민감지역 = 23
2.3.3 해안오염방제 = 25
제3장 유출유의 이동 및 확산 = 27
3.1 해수유동 및 유출유 확산 = 27
3.1.1 기본방정식 = 27
3.1.2 초기 및 경계조건 = 29
3.1.3 해수유동특성 = 30
3.1.4 유출유의 확산 = 32
3.2 유출유의 방제 = 38
3.2.1 해양오염사고 시나리오 = 38
3.2.2 해양오염 방제장비 현황 = 40
3.3 유출유의 풍화과정 = 42
3.4 오염방제전략 = 50
제4장 결론 및 고찰 = 55
감사의 글 = 59
참고문헌 = 6
A Legislative Study on the Contract of Carriage of Passengers by Sea
Get PDFUntil now carriage of goods was the central point in the field of study on the carriers under the contract of carriage by sea. But in recent years it is required that various ocean tours due to an increase of national income and leisure time. According to the prospect of experts, they forecast that the growth of tourist industry using the ocean and the activation of carriage of passengers by sea. Therefore the conflict will be occur frequently between carrier and passenger as the result of an increase of passenger ship accident. Accordingly, it is required that we should regulate a bill relating to the contract of the carriage of passengers by sea to solve the conflict on both sides.
From the earliest times ships have carried passengers, but the carriage of passengers has a different legal background from carriage of goods. First, for at least a century there has been close public regulation of passenger ships. This is continued under current law which provides for substantive regulation and the issuance of a certificate of inspection to passenger ships. Second, the contract of passage carries a different basis of liability from carriage of goods. Whereas at the common law carriage of goods involved the legal concept of bailment of seaworthiness, carriage of passengers simply required the exercise of reasonable care. Thus the shipowner was under a greater duty to care for goods than for people. Even today, of course, the doctrine of seaworthiness does not apply to passengers.
In General, the contract of carriage of passengers by sea is an ordinary contract for the conveyance from port to port by ship of persons, other than master, crew, owner, and latter's family or servants. It makes no difference whether the conveyance is made in liners or cargo vessels or whether it provides for a cruise, so that port of departure and port of destination are identical. Passengers claims typically involve personal injury or death as well as loss or damage to luggage. Furthermore, a passengers' claims for damages frequently give rise to conflicts of law problems. Internationally these matters are governed by the Athens Convention on the Carriage of Passengers and Their Luggage by Sea, 1974.
The convention is designed to consolidate and harmonize two earlier Brussels Conventions dealing with passengers and luggage and adopted in 1961 and 1967 respectively. The convention establishes a regime of liability for damage suffered by passengers carried on a seagoing vessel. It declares a carrier liability for damage or loss suffered by a passenger if the incident causing the damage occurred in the course of the carriage and was due to the fault or neglect of the carrier. Namely, the convention presumes fault in the case of death or injury due to shipwreck, collision, stranding, explosion, fire, or a defect in the ship, but limits recovery to 46,666 SDRs per passenger for death or personal injuryand 1,200 SDRs for any other loss (Article VI). This right to limit is lost if the damage resulted from an act or omission of the carrier done with intent to cause damage or recklessly with the knowledge that damage would probably occur (Article XIII ).
Recently, International Maritime Organization(IMO)'s Legal Committee is carrying out a review of the Athens Convention, with the aim of drafting amendments to the Convention, taking into account the work of the International Civil Aviation Organization(ICAO) in amending the Warsaw Convention, which covers liability in respect of the carriage by air of passengers, luggage and goods. The review of the Athens Convention focuss on the introduction of provision of financial security (Compulsory Insurance) as well as on other subjects such as the introduction of strict liability and the updating of limits of compensation. It is hoped that these amendments, once adopted, will encourage wider acceptance of the Athens Convention.
The IMO's Legal Committee at its 82nd session in October 2000 agreed that a draft Protocol to the Athens Convention would be ready for consideration by a Diplomatic Conference during the biennium 2002～2003. The draft Protocol introduces, among other things, the requirement of compulsory insurance for passenger claims, and proposes changes to the purely fault-based liability system which is a feature of the 1974 Athens Convention. For the purpose of solving this problem, many countries have recognized the desirability of determining by agreement certain rules relating to the carriage of passengers and their luggage by sea. So they have concluded several international conventions(for example, China, Russian Federation, Greece, Poland, Spain, Switzerland, United Kingdom etc.).
On the contrary, the Korean Commercial Code and the Amendment thereto, 1989 have only two articles with respect to the liability of the carrier of passengers and their luggage by sea. Those articles apply the provision of the carrier who carries passenger by land and the cargo by sea to this problem. The Korean Commercial Code, therefore, has no provision with respect to the liability of carrier who carries passengers by sea. But conflicts between passenger carrier by sea and passengers will be increased in proportion to the development of carriage of passengers by sea.
Consequently, this study aims to propose to legislate the new act of the contract of the carriage of passengers by sea. This act will be prescribe to reorganize the provisions of the limitation of the liability of the carrier who carriers passengers and their luggage by sea and to solve promptly the conflict between carrier and passenger in connection with the passengers' claim for damages and the compensation claim for a breach of a contract of the carriage of passengers by sea.
This study consists of five chapters as follows:
In Chapter 1. as the introduction, it describes the background, purpose, scope and way of study.
In Chapter 2, it observes basic concept and present condition on the carriage of passenger by sea. Particularly, it explains the meaning of passenger carrier and passenger and the concept of contract of carriage of passenger by sea. Besides it points out the present situation and the point at issue concerning the carriage of passenger by sea in domestic.
In Chapter 3, it deals with the international convention and the legislative examples of various countries. Especially it details the contents of Article and the process of conclusion on the International Convention for the Unification of Certain Rules Relating to the Carriage of Passengers by Sea, 1961, the International Convention for the Unification of Certain Rules Relating to Carriage of Passengers Luggage by Sea, 1967 and the Athens Convention Relating to the Carriage of Passengers and Their Luggage by Sea, 1974.
In Chapter 4, it explains in details for the main contents which enact a law concerning the contract of carriage of passengers by sea to draft a bill on the basis of the materials for the former study.
In Charter 5, it is suggested to draw up a bill relating to the contract of carriage of passengers by sea as proper provisions of the limitation of the liability of the carrier who carries passengers and their luggage by sea and passenger's compensation for damages.
In Chapter 6, as the conclusion, it summarizes the contents of each chapter and emphasizes the requirement of legislation relationg to the contract of carriage of passengers by sea.833 SDRs for loss to cabin luggage3,333 SDRs for loss or damage to a vehicle목차
Abstract = ix
第1章 序論
第1節 硏究의 背景 및 目的 = 1
第2節 硏究의 範圍 및 方法 = 3
第2章 海上旅客運送의 槪念과 現況
第1節 旅客運送의 一般的 槪念 = 5
I. 旅客運送의 意義 및 種類 = 5
II. 旅客運送人의 定義 = 7
III. 旅客運送契約의 意義 = 9
IV. 旅客運送契約의 法的 性質 = 10
1. 諾成·不要式契約性 = 10
2. 雙方·有償契約性 = 11
3. 都給契約性 = 11
4. 附合契約性 = 11
第2節 海上旅客運送의 槪念과 沿革 = 12
I. 海上旅客運送契約의 意義 = 12
II. 海上旅客運送契約의 性質 = 14
III. 海上旅客運送의 種類 = 14
IV. 海上旅客運送의 沿革 = 15
1. 古代 = 16
2. 中世 = 16
3. 近代 = 17
4. 現代 = 17
第3節 國內 海上旅客運送의 現況 및 問題點 = 18
I. 序說 = 18
II. 海上旅客運送의 現況 = 19
1. 國際海上旅客運送 = 19
2. 沿岸旅客運送 = 22
3. 크루즈(Cruise)觀光에 의한 海上旅客運送 = 25
III. 旅客船터미널·港灣施設 現況 = 27
1. 旅客船터미널 = 27
2. 埠頭施設 = 28
IV. 旅客船 安全管理 現況 = 29
V. 損害賠償責任의 問題 = 32
1. 商法上의 損害賠償責任의 問題 = 32
2. 責任原則의 變化 = 34
3. 强制保險制度의 適用與否 = 36
VI. 크루즈船內 事故類型과 問題點 = 37
1. 落傷 = 37
2. 욕실에서의 落傷 = 39
3. 構造上 缺陷 = 39
4. 계단에서의 負傷 = 40
6. 선석과 사다리에서의 負傷 = 41
7. 수영장에서의 負傷 = 42
8. 汚染된 飮食에 의한 負傷 = 42
9. ？幡熱ㅣ坪？ 不履行 = 43
10. 乘下船時의 問題 = 43
11. 악천후에 대한 警告 不履行 = 44
12. 暴力行爲에 의한 事故 = 44
13. 遊覽과 觀光의 問題 = 46
第3章 海上旅客運送 관련 國際協約 및 各國의 立法例
第1節 海上旅客運送 관련 國際協約의 成立過程 = 48
I. 序說 = 48
II. 國際協約의 成立過程 = 51
第2節 1961년 海上旅客運送에 관한 國際協約 = 52
I. 協約의 成立過程 = 52
II. 協約의 主要內容 = 54
1. 用語의 定義 및 適用範圍 = 54
2. 責任의 主體 및 對象 = 55
3. 責任의 原則 및 性質 = 55
4. 責任制限 = 56
5. 訴訟과 時效 = 57
第3節 1967년 海上旅客手荷物의 運送에 관한 國際協約 = 58
I. 協約의 成立過程 = 59
II. 協約의 主要內容 = 59
1. 用語의 定義 및 適用範圍 = 59
2. 責任의 主體 및 對象 = 61
3. 責任의 原則 및 性質 = 62
4. 責任制限 = 63
5. 訴訟과 時效 = 64
第4節 1974년 旅客 및 手荷物의 海上運送에 관한 아테네協約 = 66
I. 協約의 成立過程 = 66
II. 協約의 主要內容 = 69
III. 1976년 아테네協約 改正議定書 = 70
IV. 1990년 아테네？釣？ 改正議定書 = 70
V. 協約의 最近 動向 = 71
1. 改正議定書의 進行過程 = 71
2. 責任原則의 變更 與否 = 72
3. 責任制限制度의 存廢 與否 = 73
4. 强制保險의 施行 與否 = 74
5. 財政證明을 위한 電子證書의 認定 與否 = 75
第5節 各國의 立法例 = 76
I. 英國 = 76
II. 美國 = 77
III. 日本 = 78
IV. 中國 = 79
V. 우리나라 = 80
第4章 海上旅客運送契約에 관한 比較·檢討
第1節 用語의 定義 = 83
I. 序說 = 83
II. 用語의 定義 = 83
1. 意義 = 83
2. 契約運送人과 實際運送人 = 83
3. 旅客運送契約 = 84
4. 船舶 = 85
5. 旅客 = 86
6. 手荷物 = 86
7. 携帶 手荷物 = 87
8. 手荷物의 滅失 또는 毁損 = 87
9. 運送期間 = 88
10. 國際運送 = 89
III. 旅客運送約款上 用語의 定義 = 89
1. 旅客運送約款의 意義 = 90
2. 用語의 定義 = 90
第2節 海上旅客運送契約의 成立과 終了 = 91
I. 海上旅客運送契約의 成立 = 91
II. 乘船券의 發行 = 92
III. 海上旅客運送契約의 終了 = 93
第3節 海上旅客運送契約의 效力 = 95
I. 海上旅客運送人의 ？閒？ = 95
1. 序說 = 95
2. 運航開始의 義務 = 96
3. 運賃 및 料金의 申告와 揭示義務 = 97
4. 食事提供義務 = 97
5. 手荷物의 無賃運送義務 = 98
6. 死亡한 旅客의 手荷物處分義務 = 98
7. 修繕中의 居處食事提供義務 = 99
II. 海上旅客運送人의 權利 = 100
1. 序說 = 100
2. 運賃請求權 = 100
3. 發航權 = 102
4. 手荷物의 留置權 = 102
5. 託送手荷物의 供託·競賣權 = 103
III. 旅客의 義務 = 103
第4節 海上旅客運送人의 損害賠償責任 = 105
I. 序說 = 105
II. 責任의 主體 = 106
1. 船舶所有者中心主義와 運送人中心主義 = 106
2. 現行 商法上 責任의 主體 = 108
3. 1974년 아테네協約上 責任의 主體 = 109
III. 責任의 原則 = 111
1. 過失責任主義 = 111
2. 現行 商法上 責任原則 = 112
3. 1974년 아테네協約上 責任原則 = 116
IV. 責任의 對象 = 118
1. 現行 商法上의 規定 = 118
2. 1974년 아테네協約上의 規定 = 118
V. 人的 損害에 대한 責任 = 119
1. 現行 商法上의 規定 = 119
2. 1974년 아테네協約上의 規定 = 121
VI. 物的 損害에 대한 責任 = 121
1. 委託(託送)手荷物 = 121
2. 携帶手荷物 = 122
VII. 高價物에 대한 特則 = 123
1. 現行 商法上의 規定 = 123
2. 1974년 아테네協約上의 規定 = 124
VIII. 旅客의 過失 = 125
1. 現行 商法上의 規定 = 125
2. 1974년 아테네協約上의 規定 = 125
IX. 責任의 制限 = 127
1. 責任制限의 趣旨 = 127
2. 現行 商法上의 規定 = 127
3. 1974년 아테네協約上의 規定 = 128
第5節 訴訟과 提訴期間 = 130
I. 請求權 競合의 問題 = 130
1. 海上旅客運送에 있어서의 請求權 競合 = 130
2. 1974년 아테네協約上의 規定 = 131
II. 損害通知 및 訴訟禁止 = 132
III. 裁判管轄과 仲裁 = 133
IV. 提訴期間 = 133
1. 現行 商法上의 規定 = 134
2. 1974년 아테네協約上의 規定 = 134
第6節 强制保險에 관한 規定 = 135
I. 强制保險의 必要性 = 135
II. 强制保險의 內容 = 136
第5章 海上旅客運送契約에 관한 立法提案
第1節 立法의 目的 및 必要性 = 138
I. 立法의 目的 = 138
II. 立法의 必要性 = 138
第2節 海上旅客運送契約法案의 主要內容 및 立法趣旨 = 140
I. ？툭？ = 140
II. 用語의 定義 = 141
III. 海上旅客運送契約의 成立·終了 = 142
IV. 海上旅客運送契約의 效力 = 143
V. 海上旅客運送人의 損害賠償責任 = 145
VI. 强制保險 = 147
第3節 海上旅客運送契約法案의 提案 = 148
第6章 結論 = 159
參考文獻 = 16
(A) Feasibility Assessment on Adopting Total Quality Management in Korea Maritime Police Agency
Get PDFKorea Maritime Police Agency(KMPA) has been pressed by the following environmental factors. The changes in the international maritime legal system, such as the entry into force of the UNCLOS in 1994 and the promulgation of the Korea 200-mile EEZ, have radically expanded the mission of the KMPA. In addition, there is, among other nations, no such large size maritime agency, equivalent to the KMPA, except in the cases of USA, Canada, and Japan. And what is more, critics outside the KMPA, including some other government agencies and stakeholders such as maritime related associations may propose to dismantle the KMPA and transfer its duties to agencies such as Navy, Maritime Safety Office, Fishery Patrol Office, etc.
In this paper, the author highlights the internal and external issues facing KMPA, and he urges KMPA change the organizational culture for maintaining its identity and characteristics as a lead maritime agency by practising a scientific management system for maximizing cost-effectiveness of its administrative resources.
And the author suggests that KMPA should adopt the Total Quality Management System for quality improvements in services and greater efficiency in its organizational structure to meet the future competition in the changing political and legal environment and tries to assess the feasibility of TQM on KMPA. by using the Feasibility Assessment Technique.
The results of feasibility assessment show that it is suited for the KMPA to adopt TQM in its organization under the present situation as a new management technique, and the most influential stakeholder is the commissioner of KMPA and the second most influential party is assistant commissioner.
Therefore it is concluded that the feasibility of TQM Policy in KMPA entirely depends upon the high ranking officials' will and attitude toward the advancing organizational culture of KMPA.
Accordingly, this paper has been organized in the following order.
The second charter is the contents which have been set out to describe the concept, the historic background, the mission of the KMPA, mainly on the law, etc.
The third charter is concerned with introductions and discussions of TQM which is designed to make an organization more flexible, more efficient and better able to use its internal resources, of which cases were successful in the public sector.
The fourth chapter gives the descriptions of the necessity on adopting TQM in the KMPA. And also it shows the analysis of the probable impact of stakeholders in supporting or opposing the adoption of TQM by using the feasibility assessment technique before it shows the results of feasibility assessment of TQM policy in KMPA.
The conclusion is found that the search for improvement is never-ending specially in the public organization such as the KMPA. And even though there are the limitations mainly due to the difficulty in providing a systematic way of surfacing the assumptions and arguments that underlie subjective judgment, the feasibility assessment technique used in this thesis proved to be useful under conditions where the complexity of a problem cannot easily be grasped by using available theories or empirical data.Abstract = ⅴ
제 1 장 서론 = 1
제1절 연구 배경 및 목적 = 1
제2절 연구 범위 및 내용 = 3
제 2 장 해양경찰？？ 대한 고찰 = 5
제1절 해양경찰과 해양행정 = 5
1.1 해양경찰 = 5
1.2 해양행정 = 6
1.3 해양경찰행정과 해양행정의 관계 = 7
제2절 해양경찰의 발전 모형 = 10
2.1 한국 해양경찰의 연혁 = 10
2.2 해양경찰행정의 내용과 조직 = 11
2.3 해양경찰행정의 특성 = 13
2.4 경찰형 Coast Guard = 16
제 3 장 총체적 품질관리제도 = 21
제1절 연혁과 개념 = 21
1.1 연혁 = 21
1.2 개념 = 22
제2절 품질관리제도 주요 내용 = 23
2.1 TQM의 특성 = 23
2.2 TQM과 전통적 관리와의 차이점 = 26
2.3 TQM의 운용과정 = 28
제3절 공공부문의 품질관리제도 = 30
3.1 공공부문에 TQM 적용의 의의 = 30
3.2 공공부문에서 TQM 성공사례 = 31
1. 미국의 성공사례 = 31
2. 한국의 실태 = 37
3. 한국과 미국의 비교 = 40
제 4 장 품질관리제도 도입의 필요성과 가능성 = 42
제1절 품질관리제도 도입의 필요성 = 42
1.1 해양행정 환경적인 요인 = 42
1.2 해양경찰의 내재적인 과제 = 43
1.3 TQM 도입시의 기대효과 = 46
1. 행정역량 강화 = 46
2. 행정일원화 선도 = 46
3. 기구 정체성 확립 = 46
4. 행정 전문성 확보 = 47
제2절 해양경찰에 TQM의 도입 가능성 평가 = 47
2.1 TQM 도입에 대한 가능성 평가기법 = 49
1. 실현가능성 평가기법의 의의 = 49
2. 가능성 평가기법의 평가요소 = 50
3. 유용성과 한계 = 51
2.2 해양경찰에 대한 TQM의 도입 가능성에 관한 평가 = 53
1. 설문조사 대상 = 53
2. 설문조사 결과 = 55
2.3 평가의 결과 분석 = 57
1. 지지집단의 분석 = 57
2. 반대집단의 분석 = 59
3. 결과에 대한 대안 = 60
제 5 장 결론 = 66
부록 = 69
참고문헌 = 7
An Empirical Study on the Measurement of Information System Service Quality in Shipping Firms
Get PDFThe 21st Century is the information age which the knowledge and information technology are appearing as the core resources of industry.
The change of environment into this information age makes the role of information system department to change from the role of products developer and operation manager to that of service provider within the system of each enterprise.
This change in the shipping service industry has no exception. Accordingly, we make the service quality of information system in the Korean shipping firms to be high quality and advanced and then consider the competitiveness of enterprise and will have to improve the personal service of employee in the shipping firms and increase the job satisfaction inwardly and outwardly.
Accordingly, the purpose of this study is to develop the measure which can value the service quality of information system in the shipping firms at the object of employee in the shipping firms and to analyse the effect which the dimensions of service quality for the information system of shipping firms have upon the whole-scale satisfaction of users of information system in the shipping firms, and thus to emphasize its importance and also to expand it to the service-studying-scope of shipping service industry.
In this study, I keep pace with the theoretical study based on the literature survey and empirical study in order to construct the information system of shipping firms in Korea , to make use of its utility conditions and to analyse the service quality of information system.
For analyzing the data, SPSS 10.0 was used to understand the characteristics of samples. The reliability of data was examined by the use of chronbach'α Coefficient, the factor analysis was carried out to examine the propriety of data and clarify the dimensions of service quality of information system in the shipping firms.
Also, I executed t-test to measure the perceived service quality of user, and then the regression analysis to understand the effect which the perceived information system quality of shipping firms has upon the whole-scale satisfaction.
The results of this study are summarized as shown in the followings.
Firstly, as the results of confirming the dimensions of service quality of information system in the shipping firms, the factors of service quality perceived by the user are analysed as 6 factors of concreteness, reliability, certainty, sympathy, suitability and reply-ability.
Secondly, as the results of executing the variance analysis to check the difference of perception upon the characteristics of user about the service quality of information system in the shipping firms, it appeared that there is no difference of perception on the constituent of service quality of information system in the shipping firms, and it showed that there is a significant difference statistically upon the characteristics of jobs environment of users.
Thirdly, as the results of analysing the effect which the constituent of service quality of information system in the shipping firms has upon the whole-scale satisfaction on the service quality of user through the regression analysis, it appeared it has the effect upon the satisfaction of user in the order of sympathy, certainty, materiality, reply-ability and reliability.
As the factors of sympathy and certainty appeared as the most effective variable, we will have to know which the service of information system in the shipping firms is out of the simple hardware and the passive supporting scope as like the acquisition of reliability and quality of software, and then it must turn over the role which offers the positive service related to the information system, and set up the system, positively considering the availability of user in making the information system of shipping firms, and improve the efficiency of affairs through it, and will have to increase the profits of shipping firms ultimately.목차
Abstract = i
제1장 서론 = 1
제1절 연구의 배경 = 1
제2절 연구의 목적 = 3
제3절 연구의 방법 및 구성 = 4
제2장 이론적 배경 = 6
제1절 정보시스템 = 6
1. 정보기술의 정의 = 6
2. 정보기술의 특성 = 8
3. 정보기술의 활용 = 9
4. 정보시스템 = 11
5. 해운기업과 정보시스템 = 12
제2절 서비스품질 = 18
1. 서비스 및 품질의 정의 = 18
2. 서비스 품질 측정모형 = 21
3. 해운서비스 품질 = 26
제3절 정보시스템 품질평가 = 32
1. 정보시스템 품질평가의 의의 = 32
2. 정보시스템의 평가 = 33
3. 정보시스템 서비스 품질 측정 = 36
제3장 연구설계 = 41
제1절 연구모형과 가설설정 = 41
1. 연구모형 = 41
2. 가설설정 = 42
3. 변수의 조작적 정의 = 43
제2절 조사설계 = 44
1. 자료수집 = 44
2. 설문지구성 = 45
제4장 실증분석 = 47
제1절 자료의 분석 = 47
1. 표본의 특성 = 47
2. 해운기업 정보시스템 서비스 품질 구성요인 = 48
제2절 가설의 검정 = 52
1. 가설 1의 검정 = 52
2. 가설 2의 검정 = 55
3. 가설 3의 검정 = 63
제5장 결론 = 66
제1절 연구결과의 요약 및 시사점 = 66
제2절 연구의 한계점과 과제 = 67
참고문헌 = 69
= 69
= 70
부록 = 7
Design of High Power Balanced Amplifier Using Branch Line Coupler in Reduced Type
Get PDFThe hybrid coupler plays an important role in microwave circuits such as balanced mixers, image-rejection mixers, and balanced amplifier. Among them, the balanced amplifier is used for the mismatched power amplifier. However, the balanced amplifier may still be mismatched at both path of two equal amplifier because the power TR has low input-output impedance.
Besides of it the standard balanced amplifier configuration has the disadvantage requiring a large space owing to the coupler's size. The method of applying arbitrary lumped-distributed impedance transforming couplers to balanced amplifiers significantly reduces the size of over the conventional balanced amplifier with 50 Ω input/output couplers. then, the size of arbitrary lumped-distributed impedance transforming couplers tend to be restricted by the characteristic impedance.
In order to solve the above problem, in this thesis, design graphs were drawn for the reduced size coupler, which was terminated by arbitrary impedances and shorted coupled-line pair. The coupler size was 90 percent smaller than the conventional coupler.
A balanced amplifier was designed using the coupler with shorted coupled-line pair and lumped capacitor. The measured gain is 6 ± 0.2 dB, the input and output VSWR are lower than 1.40.목차
Abstract = i
Nomenclature = ii
제1장 서론 = 1
제2장 브랜치 라인 결합기의 설계 이론 = 3
2.1 임피던스 변환 결합기 = 3
2.2 소형 임피던스 변환 결합기 = 8
2.3 각 포트에서 임의의 종단 임피던스를 갖는 결합기 = 15
2.4 결합 선로를 이용한 초소형 λ/4 전송선로 = 19
제3장 전력 증폭기의 설계 = 25
3.1 전력 이득 = 24
3.2 안정성(Stability) = 29
3.3 고주파 전력 증폭소자의 특성 = 30
3.4 고주파 전력 증폭소자의 선택 = 32
3.5 평형증폭기 = 34
제4장 평형증폭기의 제작 및 측정 = 36
4.1 실험에 사용된 전력 증폭기의 특성 = 36
4.2 제작 및 실험 = 37
제5장 결론 = 41
참고문
A Study on 3-D Flow Characteristics and Power Performance for HAWTs(Horizontal Axis Wind Turbines)
Get PDFVarious theoretical design techniques to reflect loss factors are reviewed for the optimum design of rotor blade of HAWTs(Horiz-ontal Axis Wind Turbines). Also, wind resources in Korea Mari- time University is investigated for the design of offshore wind farm in the future. Estimation of average wind speed is 4.76 and it's electric power productive capacity is 32.78.
A CFD study on the aerodynamic characteristics of NACA 63215 airfoil, with some kind of flaps at trailing edge has been performed to know the effect of various flaps. In case of 1.5% height flap of chord length with 90°attachment, lift to drag ratio of NACA 63215 airfoil shows the highest value.
The estimated performance and flow characteristics have been obtained from numerical simulation for two and three blades type HAWT model which was designed by Delft University of Technology in Netherlands. The comparison between BEM and CFD results indicates a good agreement within an error of less than 10%. The numerical simulation results on the complex 3-D stall shows a good agreement with inviscid stall model and calculated wake distribution of two blades type rotor shows the similar pattern of the smoke visualized result from NREL(National Renewable Energy Laboratory).목차
Abstract = i
Nomenclature = iii
제1장 서론 = 11
1-1 풍력발전 = 11
1-2 연구동향 = 14
1-3 연구목적 = 15
제2장 풍력 가용량 선정 및 분석 = 17
2-1 측정높이의 보간 = 18
2-2 풍속분포 = 23
2-3 Weibull 분포의 적용 = 28
제3장 로터 블레이드 설계 및 이론적 성능해석 = 36
3-1 로터 블레이드 설계 = 36
3-1-1 로터 블레이드 날개 수와 성능 = 36
3-1-2 날개의 단면 형상 = 40
3-1-3 로터 블레이드의 크기 선정 = 41
3-1-4 형상설계 = 44
3-2 이론적 성능해석 = 46
3-2-1 Momentum 이론 = 46
3-2-2 Actuator Disk 이론 = 46
3-2-3 Annular Momentum 이론 = 52
3-2-4 Blade Element Momentum 이론 = 54
3-2-5 Strip 이론 = 56
3-3 실속 후 익형 공력특성 예측 = 59
3-4 로터 블레이드 형상 최적화 = 61
제4장 Gurney flap을 장착한 익형의 공력특성 = 63
4-1 Gurney flap = 65
4-2 익형의 형상정의 및 계산조건 = 66
4-2-1 익형의 형상정의 = 66
4-2-2 Bench Mark 계산 = 69
4-2-3 계산조건 = 73
4-3 결과 및 고찰 = 75
제5장 CFD에 의한 3차원 TUDelft T40/500 모델의 수치해석 = 83
5-1 형상 모델링 및 계산격자 = 83
5-1-1 T40-500 로터 블레이드 3-D 모델링 = 83
5-1-2 계산격자의 생성 = 86
5-2 경계조건 및 계산조건 = 89
5-3 결과 및 고찰 = 92
5-3-1 Wake 구조에 대한 유동해석 = 92
5-3-2 블레이드 표면 3차원 실속 현상 = 98
5-3-3 블레이드 주위 및 표면 압력분포 = 107
5-3-4 T40/500 로터 블레이드의 성능평가 = 114
제6장 CFD에 의한 2 블레이드 풍력발전용 터빈 모델의 수치해석 = 122
6-1 형상모델링 및 계산격자 = 123
6-1-1 로터 블레이드 3-D 모델링 = 123
6-1-2 계산격자의 생성 = 125
6-2 수치해석기법 및 계산조건 = 127
6-2-1 수치해석기법 = 127
6-2-2 경계조건 = 127
6-2-3 계산조건 = 128
6-3 결과 및 고찰 = 128
제7장 결론 = 140
참고문헌 = 142
학술활동
감사의
Predictive Fault Diagnosis System of Marine Diesel Engines Using Neural Networks and Fuzzy Inference Technique
Get PDFIn recent years, the ship's propulsion engines have tend to be equipped with high efficiency diesel engines because of expensive fuel cost even though they are different according to the cargo.
Their measurement points are substantially increasing over 10 thousands although there are some difference according to degree of automation for propulsion diesel engine room.
Because it is difficult for operators to manage the huge data obtained from various kinds of monitoring and control systems, it is nearly impossible to determine the faults before monitoring systems make alarm. Some faults of systems can be found easily by analyzing one or two data from monitoring systems, while some are very difficult because many data are affected each other, they are called interactive data. But expert engineer can infer the faults by analyzing these various kinds of interactive data obtained from monitoring systems for fault diagnosis of complex system using their skillful experiences and decision making tools.
Therefore in this paper, an predictive fault diagnosis system of marine diesel engines using neural networks and fuzzy inference technique is introduced. The huge data from the monitoring systems are classified into combustion system which is most primitive in diesel engine, heat exchanger systems which are important to operate diesel engine safely and continuously, and motor and pump systems which are inevitable to operate heat exchanger systems. Specially, this paper makes fault diagnosis models by analyzing methods which engineer with expert knowledges infers the faults by analyzing various interactive data and shows to build automatic predictive fault diagnosis systems with three classified subsystems by managing collected data from various monitoring systems using neural networks, fuzzy inference and decision making technique by answer tree. Also this paper shows simulation results and ascertains proposed fault diagnosis systems being appliable to real diesel engine room for three classified subsystems.목차
Abstract = vii
Nomenclature = ix
제1장 서론 = 1
1.1 연구배경 = 1
1.2 종래의 연구 = 3
1.3 연구목적 및 내용 = 5
제2장 선박디젤기관 감시데이터 및 고장진단시스템의 설계 = 7
2.1 서언 = 7
2.2 각 계통의 감시데이터 조사 및 분류 = 8
2.3 실선 운전데이터 특성 = 12
2.4 숙련된 운전자에 의한 고장진단법의 모델링 = 32
2.5 고장진단시스템의 설계 = 36
2.6 결언 = 40
제3장 신경회로망을 이용한 데이터 이상감지시스템 설계 = 41
3.1 서언 = 41
3.2 데이터 이상감지를 위한 신경회로망의 구조와 학습 = 44
3.3 연소계통 데이터 이상감지시스템 = 51
3.4 열교환기계통 데이터 이상감지시스템 = 56
3.5 전동기 및 펌프계통 데이터 이상감지시스템 = 60
3.6 결언 = 64
제4장 퍼지추론을 이용한 연소계통 고장진단 예측시스템의 설계 = 65
4.1 서언 = 65
4.2 고장진단 예측시스템의 구조 = 67
4.3 고장진단 예측시스템의 설계 = 69
4.4 시뮬레이션 및 결과고찰 = 76
4.5 결언 = 79
제5장 고장진단 의사결정트리 = 80
5.1 서언 = 80
5.2 의사결정트리의 구조 = 82
5.3 시뮬레이션 및 결과고찰 = 87
5.4 결언 = 89
제6장 결론 = 90
참고문헌 = 91
Appendix A = 9
(A) Study on the Development of Web-site Solver for solving the Reliability Redundancy Optimization problems
Get PDFThis paper deals with developing the Web-site solver for solving three classes of redundancy reliability optimization problems which are generated in series systems, parallel systems and complex systems. Inputs of the solver are completely processed on the Web-site, and consisted in four parts, that is, user authentication, select system, input data and confirmation.
HH(Hybrid-Heuristic) algorithm is incorporated in our solver for solving the given three classes of problems. The algorithm is moderately combined GA(Genetic Algorithm) with the modified SA(Simulated Annealing) algorithm to alleviate the risks of being trapped in a local optimum. We notice that the good solutions are obtained in examples.Abstract = ⅱ
Ⅰ. 서론 = 1
1.1 연구배경 및 내용 = 1
1.2 연구범위 = 4
Ⅱ. 신뢰도 최적화를 위한 Web-site Solver = 5
2.1 기호 = 5
2.2 서버사양 = 6
2.3 자료입력과정 = 6
2.4 발견적 합성 알고리듬 = 14
2.4.1 유전자 알고리듬 = 14
2.4.2 변형된 SA = 19
2.5 발견적 합성 알고리듬의 구체적 단계 = 21
Ⅲ. 예제 = 25
3.1 예제 1 = 25
3.2 예제 2 = 30
Ⅳ. 결론 = 35
참고문헌 = 36
부록 A = 37
부록 B = 5