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혼합현실 기반 훈련보조체계의 전술훈련 과제 개발 우선순위 연구
이정열 한국국방경영분석학회 2022 한국국방경영분석학회지 Vol.48 No.1
The key changes in Defense Reform 2.0, which are currently being promoted by the Ministry of National Defense of Korea, are the reduction of troops and the increase of female military personnel. And it will promote a defense environment that is sensitive to loss of life in the field of military training. In this regard, the main cause of the death was usual military training in the cases of British and American troops. And to solve this problem, R&D is being promoted to apply virtual reality technology to the training field. Likewise, Korean troops have training accidents and civilian casualties every year. And to solve this problem, the Korean Army has introduced a laser-based video shooting training simulator Since 2014. Recently, It is developing a training assistance system that applies mixed reality technology to tactical training, but research on how to development tasks of tactical training for the training assistance system is insufficient. Therefore, the purpose of this study is to provide quantitative data on what training tasks should be developed intensively when developing a mixed reality-based training assistance system to prevent loss of life between tactical training and increase training effects. As a result of the study applying AHP(Analytic Hierarchy Process), the priorities of 'personal firearm shooting' and 'personal battle' were evaluated very high.
Effect of span length on the fit of zirconia framework fabricated using CAD/CAM system
이정열,최상진,김민수,김하영,김영수,신상완 대한치과보철학회 2013 The Journal of Advanced Prosthodontics Vol.5 No.2
PURPOSE. The purpose of this study was to evaluate the effect of the span length on the fit of zirconia framework fabricated using CAD/CAM system. MATERIALS AND METHODS. Abutments for single, 4-unit and 6-unit fixed partial prostheses were fabricated. Ten zirconia frameworks were fabricated for each group. The marginal and internal gap were presented by means of replica technique and measured by measuring microscope (AXIO®, Carl Zeiss, Rochester, NY) and software (I-solution®, IMT i-solution Inc., Vancouver, BC, Canada). The results were statistically analyzed by multivariate analysis test and Dunnett T3 test for post hoc test (α=.05). RESULTS. There were statistically significant differences at 2, 4, 7, 8 points (mesio-distal section) and b, d, e, f, g (labio-lingual section). In some marginal reference points of 6-unit group (P<.05), the marginal gap were larger than 120 μm. CONCLUSION. Span length of zirconia core may have an influence on marginal and internal fit. Within the limitation of this study, the increase of span length of zirconia framework of 6 or more-unit fixed partial denture may decrease the marginal and internal fit.
Anyway as an Unassociative Stance Marker in the American Television Talk Show, Larry King Live
이정열 대한언어학회 2019 언어학 Vol.27 No.4
The aim of this study is to investigate the idea that the pragmatic marker Pragmatic markers (PMs) are “a class of short, recurrent linguistic items that generally have little lexical import but serve significant pragmatic functions in conversation” (Andersen 2001: 39). Following Aijmer & Simon-Vandenbergen (2009), the four primary properties below can be utilized to ascertain PMs: (ⅰ) PMs do not have an effect on the truth conditions of an utterance (ⅱ) The propositional content of an utterance is not included in PMs (ⅲ) PMs are relevant to the speech context or circumstance rather than to the circumstance under argument (ⅳ) PMs are related to expressive and emotive rather than cognitive, denotative, or referential. Thus, PMs are adjustable and discourse-organizational components with a great deal of heterogeneous roles. (henceforth PM) anyway is oriented to attributes of spoken language and reciprocal actions, paying special attention to how its use is embedded in the circumstance of the turn-sequences through which the host and his guests exhibit exceptional orientations in the American television talk show (henceforth ATTS) Larry King Live. Throughout the analysis in regard to the sequences of chaining of the PM anyway, it was found that the use of anyway exhibits multifunctionalities, which for both host and guests were found in the roles of the unassociative stance marker. This marker ordinarily has the multifunctional discursive functions to cease, concede, resume, digress, append, intensify, renounce, terminate, and dissent from a topic in a stalemate. In terms of the issue of imbalance in the use of anyway, the tokens of anyway were largely found in the utterances of the guests, rather than those of the host. It may be speculated that the equilibrium of power in the ATTS tends to be slanted toward the guests. The multifunctionalities of anyway between the participants connote unassociative stances in their correlations since they may utilize anyway to signal that they do not intend to continue to utter, take, or hold the floor any longer with respect to disturbing or avoidant circumstances.
Recruitment and enrollment in a randomized clinical trial of mandibular two-implant overdenture
이정열,김민수,김하영,신상완 대한치과보철학회 2013 The Journal of Advanced Prosthodontics Vol.5 No.2
PURPOSE. The purpose of this study was to evaluate the effectiveness of a promotion campaign for subject recruitment and selection, and reasons of withdrawal from a prospective clinical trial of mandibular two-implant supported overdenture. MATERIALS AND METHODS. The subjects of this study were participants in a randomized controlled clinical trial for investigating prognosis of implants and overdentures with attachments. Recruited subjects were classified by gender, age, and participation motives. Withdrawal rate of the participants before and after enrollment were evaluated. RESULTS. 177 patients were recruited and 51 patients were enrolled for the trial. Among them, 40 participants eventually took part in the trial. 116 subjects (65.5%) were recruited by advertisement and 61 (34.5%) were referred by patients of the hospital or local clinics. Regarding recruitment effectiveness, newspaper recruited the largest number of participants. With respect to referral patients, the proportion of our hospital patients was higher (37/61). Subjects in their 70s comprised the largest proportion (22/51). The male to female ratio was similar (25:26). Final withdrawal rate of all subjects were 74.0%. Among the reasons for withdrawal from enrollment (n=126) presence of remaining teeth and lack of motivation were the most common reasons. CONCLUSION. To facilitate recruitment of clinical trial subjects and improve enrollment rate, it is important to obtain a sufficient number of researchers, perform promotion activity with diverse strategies, cooperate with local dentists, increase the research funding, and alleviate subjects’ fear against clinical trials by thorough consultation.
이정열,서용원,이성열,이종석,황규왕 ( Jung Youl Lee,Yong Won Seo,Sung Yul Lee,Jong Suk Lee,Kyu Uang Whang ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.2
Maffuccis syndrome was first reported by Maffucci, in 1881. This syndrome is manifested by multiple enchondromas and hemangiomas, characterized by non-hereditary mesenchymal neoplasia that has a propensity for malignant transformation. Involvement of long bones, particularly the bones of the hands and feet, is most common. The most important complication of this syndrome is the high frequency of chondr osarcomatous metaplasia. We report a case of Maffuccis syndrome in a 56-year-old woman with multiple hemangioma on both the hands and forearms, left foot and enchondromas of multiple bones. The disease started at the age of 8 and was associated with deformity, but malignant transformation was not found. (Kor J Dermatol 1997:35(2): 388-391)
Degree Modifier Associations in the Michigan Corpus of Academic Spoken English
이정열 대한언어학회 2018 언어학 Vol.26 No.3
Lee, Jungyull. (2018). Degree modifier associations in the Michigan Corpus of Academic Spoken English. The Linguistic Association of Korea Journal, 26(3), 25-49. From a semantic-analytic perspective, this paper investigates how degree modifiers associate with lexemes in the Michigan Corpus of Academic Spoken English. The corpus is utilized to explore diverse associations between degree modifiers and lexical items having positive, negative, and neutral connotations. The analysis of various lexemes in connection with degree modifiers identifies the relationship that accounts for the preferences governing the associations between degree modifiers and the lexemes; i.e., the strongest relationship seems to occur with respect to the frequencies of their associations. In this study, it is significant to note that variable lexemes other than ostensible lexemes are included in terms of lexical variabilities. In light of the corpus-based data on the nature of degree modifier associations proposed in this study, each degree modifier is shown to associate powerfully with distinct lexemes implying exceptional semantic preferences. The analysis of semantic preferences pertaining to degree modifiers suggests that each degree modifier preferentially selects distinctive types of lexemes; namely indications of degree modifiers may be noticeable in discourse.
교양필수 교과목에 대한 만족도 분석: J대학 사례를 중심으로
이정열,김삼섭 한국융합학회 2019 한국융합학회논문지 Vol.10 No.12
In this study, we examined the satisfaction level of J university's compulsory liberal arts subject with quantitative research. The results quantitative research are as follows. First, men are more interested in creative thinking, college life guidance and career path design than girls. Second, the level of satisfaction with the required liberal arts subject by grade was found to be without a statistical significant difference. Third, the satisfaction level of each line of learning was shown in the order of natural engineering, health and welfare, physical fitness, and humanities. The satisfaction level of the lines of learning was found to vary. Fourth, The satisfaction level of each campus was found to vary. The results of this study could be used as basic data to improve the college liberal arts curriculum, especially the compulsory liberal arts curriculum. The results of this study could be used as basic data to improve the college liberal arts curriculum, especially the compulsory liberal arts curriculum. 이 연구에서는 J대학의 교양필수 교과목에 대한 만족도를 알아보았다. 이를 위해 J대학 2~4학년 502명의 설문조사 결과를 기초로 성ㆍ학년ㆍ계열ㆍ캠퍼스에 따른 만족도 차이를 알아보았다. 첫째, 남학생은 여학생에 비해 창의적 사고, 대학생활지도 및 취창업진로, 대학생활지도 및 진로설계 교과목에 대한 만족도가 더 높은 것으로 나타났다. 둘째, 교양필수 교과목에 대한 학년별 만족도는 차이가 없는 것으로 나타났다. 셋째, 계열별 만족도는 자연공학, 보건복지, 예체능, 인문사회의 순으로 나타났다. 넷째, 캠퍼스별 만족도는 차이가 있는 것으로 나타났다. 이 연구의 결과는 대학 교양교육과정, 특히 교양필수 교육과정을 개선하는 데 기초자료로 활용할 수 있을 것이다