소요결정 이후의 무기체계 운용요구서(ORD) 작성 프레임 연구

이정열,Lee, Jeongyeol 한국군사과학기술학회 2020 한국군사과학기술학회지 Vol.23 No.1

Delivering the weapons system requirements of the military to the acquirer is an essential activity for the development of the defense industry as well as the successful acquisition of a weapons system. In order to ensure successful delivery of requirements, the creation of a weapons system Operational Requirements Document(ORD) has been mandated since 7. 2013. However, according to the results of a study which analyzes recently-created ORD, a number of problems are occurring. For one, some items in created ORDs differ from what the ORD template requires. In addition, the overall mission area of the weapons system to be acquired and the core parts(operation performance, system performance, and core performance) of ORD are being poorly recorded. In response, this study presented a framework(focused on a creating method of overall contents and core parts) for the creation of ORDs which can solve the problems that arose during ORD creation in the past.

고체추진기관용 물분사 소음디퓨저의 설계 및 제작

이정열(Jeongyeol Lee),이지형(Jehyung Lee),이성웅(Sungwoong Lee),고현(Hyun Ko),조용호(Yongho Cho) 한국추진공학회 2011 한국추진공학회 학술대회논문집 Vol.2011 No.11

고체추진기관의 초음속 제트 속에서는 다양한 소음들이 발생된다. 본 연구에서는 로켓 모타의 배기가스에 물을 분사하고, 디퓨져 및 스택을 설치하여 초음속 제트에서 발생되는 소음을 억제할 수 있는 장치를 설계 및 제작하는 기술을 확보하는데 있다. 물분사 소음디퓨저를 연소시험용 로켓 모타에 적용하여 약 20dB의 소음저감효과를 얻었다. In the supersonic jet of a solid rocket motor, various noise is investigated. The purpose of this study is to attain and evaluating a design and manufacturing technique of the SRM noise reduction. In this study, the water is injected into the supersonic jet of the SRM to reduce the noise. Furthermore, the diffuser and stack are installed to suppress the SRM noise. Through the SRM ground tests, the noise is reduced approximately 20dBA with application of the diffuser/stack with water injection.

육군3사관학교 사관생도의 병과선택에 관한 실증 분석

이정열(Jeongyeol Lee) 육군사관학교 화랑대연구소 2021 한국군사학논집 Vol.77 No.1

Branch selection is a process in which officers who have been trained with a great deal of time and cost are able to exercise their abilities, and receive the opportunity for self-realization. It is also an opportunity for the Army to develop its branches. However, branch selection actually occurs when cadets are not aware of the field situation. Furthermore, branch selection is currently based solely on fragmentary education by branch officers. Therefore, it is difficult for cadets to properly consider their aptitude and abilities. Thus, the purpose of this study is to provide a guide for branch selection for the new generation of cadets and policy implications for the army as a whole. This study was conducted in two phases. In the first phase, two surveys examined the criteria for selecting branches and the perceptions of each branch, and quantitatively analyzed the priorities and preferences among the cadets through the Analytic Hierarchy Process(AHP). In the second phase, the branch perceptions of field experts were investigated and the differences in perception between cadets and experts were verified as statistically significant through ANalysis Of VAriance(ANOVA). Also, implications were presented by comparing the perceptions of cadets who hava no experience in each branch with those of field experts.

모바일 애플리케이션을 이용한 아파트 상가 주차면 공유 서비스 플랫폼 구축

이정열(Jeongyeol Lee),김도희(Dohee Kim),백혜원(Hyewon Baek),오주영(Juyeong Oh),고석주(Seokju koh),박창병(Changbyung Park),김민희(Minhee Kim) 한국방송·미디어공학회 2020 한국방송공학회 학술발표대회 논문집 Vol.2020 No.11

병력감축에 관한 육군 간부의 인식에 미치는 영향요인 분석

이정열 ( Lee Jeongyeol ),정대규 ( Jeong Daegyu ) 한국국가전략연구원 2020 한국국가전략 Vol.5 No.1

현재 한국 육군은 세계적인 흐름에 발맞추어 급변하는 안보환경 및 미래의 전쟁양상에 대응하기 위해 국방개혁 2.0을 추진하고 있고, 이러한 국방개혁 2.0과 관련된 가장 큰 변화는 병력감축이라고 할 수 있다. 하지만 국방개혁 2.0 이전까지 추진했던 육군의 병력감축은 구조변화 중심의 외형적 변화에만 집중한 결과 소기의 목적을 달성하지 못하였다. 그리고 불행하게도, 육군의 한 연구에 의하면 한국군의 병력감축은 그 성공과 관련된 불안정한 요소들을 가지고 있다고 하였다. 이에 본 연구에서는 병력감축에 관한 육군 간부들의 인식에 영향을 미치는 요인을 실증적으로 분석하여 그 대안을 제시하였다. Recently, the Korean Army is pushing for the National Defence Reform 2.0 in accordance with the global trend. And the biggest change related to the National Defence Reform 2.0 is the soldiers reduction. However, the former national defense reform implemented by the Korean Army have failed to achieve its purpose because the Army only focused on appearance changes. And unfortunately, according to a study, the soldiers reduction of the Korean Army has unstable factors related to its success. Therefore, the purpose of the study is to identify influencing factors on Army executives' perception of the Soldiers Reduction based on a human-relation perspective.

육군 지휘관급 장교의 복무만족도에 미치는 영향요인 분석

이정열(Jeongyeol Lee) 육군사관학교 화랑대연구소 2021 한국군사학논집 Vol.77 No.2

The Defense Reform 2.0, which is currently being pursued by the Korean military, involves a large-scale soldier reduction. The commander of each unit is experiencing difficulties in carring out their mission due to the reduction of soldiers. As a result, the commanders face a difficult situation in which may decline their job satisfaction. Therefore, the purposes of this study are to find factors for affecting the job satisfaction and to provide a policy direction for enhancing the job satisfaction of officers(captain or higher). This study consists of three phases. In the first phase, theoretical reviews are conducted on job satisfaction and organizational immersion, the Defense Reform 2.0 and the realities of the Army, and the causes related to job satisfaction of officers. In the second phase, a survey on job satisfaction of Army commander-level officers is conducted for data collection. In the third phase, analysis (frequency, correlation, multiple regression) is conducted on influencing factors of job satisfaction. The results of the study are as follows. First, gender and length of service affected job satisfaction among demographic factors. Second, promotion, soldiers image, interest, marital stability, specialized knowledge, employment after discharge affected job satisfaction among job property factors.

1990년대 이후 과학 이론이 현대 건축에 미친 영향에 관한 연구

이정열,최왕돈 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

Architectural system of thinking can be related to either new scientific theory. Modernism Architecture is related to Newtonian theory. Contemporary Architecture after Modernism has been is effecting the Theory of relativity and Quantum mechanics. Therefore, the purpose of the study is to search for the lelationship between the scientific theory and contemporary architecture. This study analyze the contemporary architecture by the frame of the new scientific theory. The main concept of the Theory of relativity and Quantum mechanics in this study is relativity, uncertainty, discontinuity, complementarity and probability.

重要 養殖 對象 貝類의 産卵誘發에 대한 紫外線照射海水의 效果

李定宰,李廷烈 濟州大學 海洋資源硏究所 1981 해양과환경연구소 연구논문집 Vol.5 No.-

몇種의 養殖對象貝類에 紫外線照射海水流水法에 의한 人工産卵誘發을 試圖, 그 效果有無를 確認하고 産卵에 대한 反應率 및 反應時間等을 紫外線照射量 세기에 따라 比較 調査하였다. 1. 전복, 오분자기, 소라, 가무락, 바지락에 紫外線照射海水를 利用 産卵誘發을 試圖한 結果 전복 및 오분자기에서는 反應率이 좋았으나 가무락, 바지락에서는 反應이 없었다. 2. 生殖物質 放出率이 가장 좋았던 時間은 紫外線照射後 3∼4時間頃 이었다. 3. 照射量이 많을수록 反應率이 높았고 放卵·放精에 所要된 時間도 短縮되는 傾向을 보였다. 4. 紫外線照射海水만을 流水시킨 경우보다는 干出刺戟이나 溫度刺戟後 照射海水를 流水시킨 경우가 보다 좋은 反應率을 나타내었다. 5. 紫外線調射海水의 産卵誘發能力은 海水內에 光化學的 反應에 의한 Prostaglandin endoperoxide 活性에 起因되는 結果로 그 效果를 認定할 수 있었다. An induction of spawning by irradiated seawter with ultraviolet rays carried out in the laboratory to conduct fundamental studies on artificial spawning of some cultivated shells, i. e. Haliolis discus, Haliotis diversicolor supertexta, Turbo cornutus, Tapes variegata, Cycline sinensis. The materials collected from Seongsan-po and Chuza-do during the spawning season of these species. Stimulus methods for artificial spawning in this experiment were three methods; UV-rays irradiated seawater used only, the UV-rays irradiation after temperature treatment and UV-rays irradiation after exposure to air. The rate of response and the time required for spawning on the amount of irradiation were observed. In an attempt to artificial spawning by irradiated seawater with UV-rays on the 5 species of shells, the rate of response for spawning in H. discus and H. diversicolor supertexla were effective to induce spawning but weren't in C. sinensis and T. auriegata. The most effective discharging time was 4 hours after UV-rays irradiation. As for the amount of stimulus, it was obvious that the spawning rate increased with the amount of the irradiation and reduced the time required for initial spawning. UV-rays irradiation after temperature treatment and UV-rays irradiation after exposure to air were more effective than stimulus by UV-rays irradiated seawater used only. An ability of irradiated seawater caused spawning mediated by photochemical reactions in seawater depending on the enzyme catalyzing oxidative synthesis of prostaglandin. In this experiment, the results suggest that the effect of irradiated seawater with UV-rays to induce artificial spawning is to be recognition.