중국인 학습자의 한국어 발음에 대한 한국인 모어 화자의 청각 인지 반응 -중국인 학습자의 자음 발음을 중심으로-

김지형 국제한국어교육학회 2017 한국어 교육 Vol.28 No.2

Kim, Ji-hyung. 2017. Korean Native Speakers Auditory Cognitive Reactions to Chinese Korean-learners’ Pronunciation: Centered on the utterance of consonants in the Korean Language. Journal of Korean Language Education 28-2: 37-60. This research has its basis with focus on the way Korean native speakers recognize Chinese Korean-learners’ pronunciation. The objective of the study is to lay the cornerstone for establishing effective teaching-learning strategies for the education of the Korean phonetic system. In this study, the results of the experiment are presented which shows how native speakers of Korean identify Chinese Korean-learners’ pronunciation of consonants. In the first place, stimulation tones were created from the original utterances of Chinese Korean-learners and seven scripts were made through the Pratt program. In addition, the subjects were asked to choose what the phonetic materials sounded like. The results of the research are represented as the ratio of frequency of Korean native speakers’ response to each utterance to the total frequency. In addition, the paired t-test was taken in order to explore any relatedness to the changes in the level of proficiency of the Korean phonetic system, ranging from beginners to advanced learners. The outcome shows that the mistakes which Chinese Korean-learners make in pronouncing the consonants of Korean are relatively well-reflected in Korean native speakers’ auditory cognitive reactions. To put it concretely, there is some difficulty in differentiating lax consonants from aspirates in the cases of plosives and affricates, but relatively little trouble with fortes. However, it is revealed that there is also a slight difference in relation to articulatory positions in detailed aspects. To provide an effective teaching method for the Korean phonetic system, it is essential to comprehend learners’ phonetic mistakes through the precise analysis of data in terms of ‘production.’ Also, a more meticulous observation of ‘phenomena’ must be made through verification from the view of ‘reception,’ as attempted in this study. A more thorough diagnosis by applying methodology makes it possible to lay the foundation for developing effective teaching-learning strategies for the instruction of the Korean phonetic system. This study has its significance in making such attempts. (Kyung Hee Cyber University)

문맥조영CT의 효용성과 문제점

김지형 대한영상의학회 1994 대한영상의학회지 Vol.31 No.2

Drawing Guidelines for Receiver Operating Characteristic Curve in Preparation of Manuscripts

김지형,Il Chan Hwang 대한의학회 2020 Journal of Korean medical science Vol.35 No.24

The appropriate plot effectively conveys the author's conclusions to the readers. The Journal of Korean Medical Science provides a series of special articles to show you how to make consistent and excellent plots easier. In the second article, drawing receiver operating characteristic (ROC) curve is introduced. A ROC curve is a graphic plot that illustrates the diagnostic ability as its discrimination threshold is varied. It is widely used as logistic regression analysis as machine learning becomes widespread. It has great visual effect in comparing various diagnostic tools

The Japanese Annexation of Korea as Viewed from the British and American Press: focus on The Times and The New York Times

김지형 고려대학교 한국사연구소 2011 International Journal of Korean History Vol.16 No.2

This study analyzes the contents and characteristics of the reports related to the Japanese annexation of Korea that appeared in the major newspapers in Great Britain and the United States, namely The Times and The New York Times, before and after the Japanese annexation of Korea in 1910. Both papers boast traditions of over 150 years and continue to be internationally influential dailies. At the time, these two entities, which were representative of the press in Great Britain and the United States, swayed public opinion in favor of imperialistic expansion. In essence, the two newspapers came out in favor of the Japanese annexation of Korea. They reprinted the official position of the Japanese government regarding the annexation of Korea, namely that the chaos in Korea had made annexation inevitable, and reflected the imperialistic expansionist logic that annexation would help foster the development of Korea. This can be regarded as the moment at which the issue of independence used as the logic for Japan’s territorial encroachment in Korea reached the terminus known as the ‘inevitability of annexation.’The two newspapers reported on the annexation of Korea from the standpoint of Western imperialism. They reported on the process of the annexation of Korea in a manner that cloaked the violence carried out by Japan in the name of pushing through the annexation treaty, and excluded the positions of the Korean people. The rise of ŭibyŏng (righteous armies) and of the independence movement in Korea in opposition to the violence of Japanese imperialism was decried as ‘riots’ initiated by ‘malcontents.’Although the two newspapers, in their capacity as Western papers representative of imperialist nations, by and large maintained the common position of accepting the inevitability of the ‘annexation of Korea,’ each adopted, in keeping with the positions of their respective governments, its own line of reasoning for this acceptance.

문헌 분석 : 초기 양육행동과 아동의 적응적 발달

김지형 다문화아동청소년연구원 2021 다문화아동청소년연구 Vol.6 No.3

본 연구에서는 초기 양육행동과 아동의 적응적 발달에 관한 선행연구를 분석하 였다. 선행연구에 의하면 부모의 긍정적 양육행동은 문제 행동의 감소, 긍정적 정서 반응과 인지기능 등 아동의 적응적 발달과 관련이 있음을 보고하고 있다. 또한 초기 돌봄의 경험과 이후의 발달과의 관계를 설명하는 매커니즘으로 애착 이론으로부터 내적작동모델의 개념이 제안되었다. 즉 자아와 타인의 정신적·인 지적 표상인 내적작동모델은 초기 주 양육자와의 관계의 경험으로부터 생성되 고 이는 이후 타인과의 관계에서의 인지와 행동에 영향을 미치게 된다는 것이 다. 선행연구 분석을 통해, 공통적으로 어린시절 부모-자녀와의 관계를 설명하 는데 있어 이들을 둘러싼 환경적 맥락과 부모와 자녀가 서로 영향을 주고 받는 다는 양방향성의 중요성을 공통적으로 보고하고 있다. 따라서 추후 연구에서는 아동과 부모의 역동적인 상호작용을 고려한 방법론과 이론적 틀을 채택할 필요 가 있을 것이다. This study reviewed the literature on early parenting and children’s developmental outcomes. A vast body of empirical evidence indicates that positive parenting is related to adaptive developmental outcomes such as fewer externalizing behaviors, optimal cognitive functioning, and positive emotional response to relational events. The literature suggests the internal working models concept from attachment theory as the underlying mechanism of how early caregiving experiences continue to later relationships and adjustment. Also, the literature emphasizes the importance of the bidirectionality of the parent-child relationship and the context surrounding parent and child. Based on this review, future research needs to adopt the appropriate methodology and theoretical framework in addressing the dynamic interactions between children and parents.

Predictors Associated with the Maintenance of Normal Thyroid Function after Unilateral Total Thyroidectomy in Patients with Papillary Thyroid Microcarcinoma

김지형,박하경,Tae Kwun Ha 대한갑상선-내분비외과학회 2019 The Koreran journal of Endocrine Surgery Vol.19 No.3

Purpose: The goal of this study was to identify factors affecting the maintenance of normal thyroid function in patients who did not receive immediate levothyroxine replacement after unilateral thyroid lobectomy (UTL) for papillary thyroid microcarcinoma (PTMC). Methods: A total of 232 patients were treated for PTMC between January 2015 and December 2017, of whom 40 patients were excluded because of treatment for thyroid disease (n=22) or an inability to maintain normal thyroid function during the preoperative examination (n=18). The remaining 192 patients for whom normal follow-up investigation was possible were then retrospectively analyzed for parameters including sex, age, preoperative free T4, thyroid-stimulating hormone (TSH), thyroglobulin, thyroid autoantibody, body mass index, postoperative histology, and remnant thyroid gland volume. Results: Of the 192 patients included in this study, 97 (50.5%) maintained normal thyroid function without levothyroxine replacement after UTL. The remaining 95 (49.5%) patients developed postoperative hypothyroidism, which was treated with immediate hormonal intervention. Univariate factors associated with postoperative hypothyroidism included sex, postoperative histopathology of the thyroid gland, and the preoperative TSH level. In the multivariate analysis, sex and preoperative TSH levels were identified as significant factors. Conclusion: Female sex and increasing preoperative TSH levels were identified as independent predictors of the development of postoperative hypothyroidism. The cut-off preoperative TSH level for predicting the maintenance of normal thyroid function after UTL was 1.89 mIU/L. Based on these observations, the potential risk of postoperative hypothyroidism in patients exhibiting elevated TSH levels should be discussed before initiating surgery.

Operation Strategy in Fast Fashion -The Case of Zara

김지형,이승희 한국의류학회 2009 한국의류학회 학술대회논문집 Vol.2009 No.1

모바일 MIMO OFDM 시스템에서 채널의 상관성을 이용한 효율적인 채널 추정 기법

김지형,박병준,홍대식,강창언 한국통신학회 2004 韓國通信學會論文誌 Vol.29 No.4A

본 논문에서는 comb 방식의 파일럿 패턴을 가지는 MIMO OFDM 시스템에서의 채널 추정 기법에 대하여 논의한다. 또한, 시변 채널 환경에서 채널 측정의 정확도를 높이기 위한 효율적인 채널 추정 기법을 제안한다. 시뮬레이션을 통해 제안한 채널 추정 기법이 채널이 변하는 상황에서 성능의 감소 없이 채별의 변화를 추정함을 알 수 있었다. In this paper, we investigate channel estimation techniques based on the comb-type pilot arrangement for a mobile MIMO OFDM system. Moreover, to enhance channel estimation, an efficient channel estimation technique is proposed. Simulation results show that the proposed channel estimator is accurate and effective for tracking variations of channels between multiple transmit antennas and receive antennas in time-varying radio channels.

Radiation from a Cavity-Backed Circular Aperture Surrounded by Concentric Corrugations

김지형,송성찬,박용배 대한전기학회 2017 Journal of Electrical Engineering & Technology Vol.12 No.2

Radiation from a cavity-backed circular aperture surrounded by concentric corrugations is studied. An electromagnetic boundary-value problem of the cavity-backed circular aperture surrounded by concentric corrugations is solved by using the Green’s function, Hankel transform, and mode matching method. The radiated fields are computed in terms of corrugation geometry to illustrate radiation behaviors and measured to validate our computation. The effects of the corrugation geometries on the radiation are discussed.

How to Increase Your “Power”

김지형 대한고관절학회 2018 Hip and Pelvis Vol.30 No.1