저해음의 비음화 : 음운론 및 음성학적 접근 Its Phonology and Phonetics

안현기,권순석,김기열 대한언어학회 2000 언어학 Vol.8 No.1

Ahn, Hyunkee, Soon-Suk Kwon, and Ki-Yeol Kim. 2000. Obstruent Nasalization: Its Phonology and Phonetics. Linguistics 8-1, 27-38. This paper discusses a Korean phonological rule, Obstruent Nasalization--i.e., an obstruent is phonologically nasalized when followed by a nasal. As is well known, this rule is productively prevalent in Korean, but not in English. Within the Optimality Theoretic framework, the difference in this phonological pattern between the two languages is well captured by means of adjusting the dominance relationship between two constraints (markedness and faithfulness constraints). This constraint-based explanation, however, doesn't suffice our question of why the phenomenon is phonetically natural in Korean, but cross-linguistically rare. To this question, we will provide one possible answer by suggesting that the markedness constraint is phonetically oriented due to a phonetic constraint on laryngeal feature juxtapositions. (Kyung Hee University)

피자레스토랑 소비자 선호도 우선순위

정순석 한국교통대학교 2017 한국교통대학교 논문집 Vol.52 No.-

In the domestic food service market, consumers' behavior is becoming higher, diversified, and individualized due to the increase in income due to economic development, and the proportion of the food service industry is gradually increasing as the change in diet is accelerated. The fast-food industry, one of the fastest growing segments of the food service industry, has been rapidly supplied to busy urban people and students who are being chased in time, at an affordable price, and their demand is soaring. Among them, pizzeria is steadily loved, and as the scale is large, the competition among the companies is not endless. In this situation, customers are also subdivided and diversified, making choices based on the various attributes of the pizza restaurant. With such multi-attribute criteria and differentiation, customers should be aware of unique and symbolic images that distinguish them from other brands. Therefore, it is necessary to provide a logical basis for predicting and preparing consumers' preference through AHP, which is a research and analysis according to attributes (reliability, comfort, brand, service). We suggest pizza marketing plan because it is deemed necessary, and we plan to cope with consumer's needs.

계층화 분석 과정을 적용한 최적운송 수단에 관한 연구

정순석 忠州大學校 2007 한국교통대학교 논문집 Vol.42 No.-

The Analytic hierarchy process is known as a useful tool for the group decision making methods. This tool has been in several areas such as investment, R&D management, manufacturing, production and marketing. Typically, transportation problems have addressed by mathematical programming, In this paper, an optimal Solution of transportation problem was determined by the analytic hierarchy process.

전산화단층사진을 이용한 하악골 비대칭 환자의 저작근 평가

최순철,이선복,이진구,이원진,허민석,이삼선 大韓口腔顎顔面 放射線學會 2004 Imaging Science in Dentistry Vol.34 No.1

Purpose : To compare the size of the masseter and lateral pterygoid muscle between the affected and the unaffected side of the patients who have the chief complaints of the mandibular asymmetry. Materials and Methods : Twenty two patients (male: 4, female: 18, average age: 21.3 year-old) were radiographed using posterior-anterior (P-A) cephalography and computed tomography (CT). On P-A cephalography, the degree of deviation was determined by the distance from the mentum to the vertical reference line through the crista galli and the anterior nasal spine. On the scanned tracing papers of the maximum cross-sectional area of the masseter and lateral pterygoid muscle using axial CT images, the pixel number was measured. The ratio of the affected : unaffected sides were obtained. For the masseter and lateral pterygoid muscle, the relationship between the muscular volume and degree of skeletal hypoplasia was studied. Results : The half cases showed no skeletal asymmetry. The lateral pterygoid muscle of the affected side was larger significantly than unaffected side (p<0.05). However, there was no significant difference between two sides in the cases of skeletal asymmetry. There was only significant difference in the cases without skeletal asymmetry (p<0.05). Conclusions : To some extent, the slight mandibular hypoplasia could affect the growth of some masticatory muscles.

잠재성 소염진통작용이 있는 Hydantoin-3-Acetic Acids 및 그 유도체 합성

권순경,박명숙,신영식 德成女子大學校 藥學硏究所 1991 藥學論文誌 Vol.2 No.1

Through the Bucherer-Bergs method, new 5-alkylthio (sulfonyl)-methyl-p-x-phenylhydantoins were prepared. Hydantoin-3-acetates were synthesized by the reaction of the hydantoins and ethyl chloroacetate and through the subsequent hydrolysis of the 3-acetates with dilute sodium hydroxide hydantoin-3-acetic acids were obtained. These products are expected to exhibit antiinflammatory and analgetic activities.

대구시내 일부지역의 강화분진량 측정

강석호,최수돈 嶺南大學校 環境問題硏究所 1991 環境硏究 Vol.10 No.2

At a residential area in Daegu, the measurement of the ambient dust-fall and its particle size distribution were carried out by using a new dust-collection method, in which the adhesive film tape having a specific surface area and weight was adopted as sample collector. The results obtained by the new method can be summarized as follows : (1) The new sampling method is simple and convenient to measure the dust-fall and to analyse microscopically their particle size distribution. (2) The effective sampling period of the atmospheric dust-fall might be shorter than 48 hrs. For longer period, the adhesive capability of the film diminishes with time due to evaporation of adhesive ingredients from the collecting film surface. (3) The dust-fall amount observed at Daegu during a few months of 1989 shows to be smaller than that of WHO Standard, except in the dry season of March 1989. (4) The particle size distribution is shown to be multimodal. And the medium particle size of the dust-fall observed is in the range of 4.5-7.5㎛, and the arithmetic mean particle size is in the range of 11.5-12.8㎛

Ferrocenylmethyl Benzoate류의 가용매분해에 대한 반응속도론적 연구

홍순영,김창석,원성준 漢陽大學校 自然科學硏究所 1996 自然科學論文集 Vol.15 No.-

여러 가지 p- 혹은 m- 치환 ferrocenylmethyl benzoate를 합성하였다. 이들 에스테르의 가용매 분해반응 속도를 여러 혼합비의 methanol, ethanol, acetone 및 1,4-dioxane 수용액에서 pH metric method로 측정하였다. 반응 속도는 용매의 유전상수가 클수록 빠르고 Kirkwood-Onsager 관계식에 잘 맞았다. Grunwald-Winstein 식을 적용시킬 때 substrate parameter m 값이 0.5 -0.6으로 나타나며 aprotic solvent에서 보다 protic solvent에서 약간 더 크게 나타났다. 이들 가용매 분해반응은 전자 끄는 치환기에 의해 촉진되며 Hammett 반응 상수가 +0.622 (80% EtOH)와 +0.882 (80% 1,4-dioxane)로 나타났다. 또한 이들 반응에 관여하는 몇 가지 활성화 parameter를 산출하였다. 이상의 반응 속도론적 연구결과로부터 이들 에스테르의 가용매 분해반응은 ?? (alkyl-oxygen fission)과 ?? (acyl-oxygen fission)의 혼합과정으로, 그러나 ??쪽이 약간 우세한 과정으로 진행한다는 사실을 알 수 있었다. Several ferrocenylmethyl p-or m- substituted benzoates were synthesized. Rates of solvolysis of these esters in aqueous methanol, ethanol, acetone or 1,4-dioxane of various compositions were measured by a pH metric method. Rates of reaction were increased with increasing dielectric constant of solvent and these reactions obeyed Kirkwood-Onsager equation well. Substrate parameter (m) derived from Grunwald-Winstein equation was found to be 0.4-0.6 in these solvolyses, and the value (m) in protic solvent was slightly larger than that in aprotic solvent. Reactions were accelerated by electron-withdrawing substituents and Hammett substituent constants (ρ) of +0.622 (in 80% EtOH) and +0.882 ( in 80% 1, 4-dioxane) were obtained. Some activation parameters relevant to these reactions were also calculated. From the observed kinetics, it was concluded that ferrocenylmethyl benzoates solvolyze by a combination of ?? (alkyl-oxygen fission) and ?? (acyl-oxygen fission) pathways, in which ?? mode predominates slightly over ?? mode.

법랑질 형성부전증 환아의 치험례

박희숙,김태완,김영진,김현정,남순현 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

Amelogenesis imperfecta is a group of hereditary defects of enamel, unassociated with any other generalized defects. It is classified into 14 subtypes according to different clinical and genetic features. According to its clinical features, it is classified into hypoplastic type, hypocalcified type and hypomaturation type. However, these features tend to co-exist often. Dental features associated with amelogenesis imperfecta include quantitative and qualitative enamel deficiencies, pulpal calcification, root malformations, abnormal eruption, impaction of permanent teeth, progressive resorption of root and crown, congenital missing teeth and anterior and posterior open bite occlusions. The first case patient is a 16 month-old child with discoloration of deciduous teeth. All of her deciduous and permanent dentition has shown amelogenesis imperfecta. The restorational, orthodontic and recent prosthodontic treatments have been completed. Another patient is a 9 year and 3 month-old child with amelogenesis imperfects in both deciduous and permanent dentition. The restoration has been done and the prosthodontic treatment is planned after the completion of growth. Above cases indicate that amelogenesis imperfecta occurs both in deciduous and permanent dentition, and it requires the long term treatment and care. 법랑질 형성부전증(amelogenesis imperfecta)은 전신질환과 관련없이 법랑질에 결함을 나타내는 유전질환이다. 법랑질 형성부전증은 발현되는 증상과 유전 양상에 따라 14가지의 아류형으로 분류된다(Witkop, 1989). 임상적으로는 크게 형성부전형(hypoplastic type), 저석회화형(hypocalcified type), 성숙부전형(hypomaturation type)으로 나누어진다. 하지만 이들은 때로 혼재된 양상으로 나타난다. 법랑질 형성부전증은 법랑질이 질적으로나 양적으르 부족하며 치수 석회화, 치근 형태 이상, 맹출 장애와 영구치의 매복, 점진적인 치근의 흡수, 선천적 치아 결손, 그리고 전치부나 구치부의 개교합 등의 문제점을 나타낸다. 첫 번째 증례는 만 1세 4개월때 유전치부의 치아색 이상을 주소로 내원한 환자로 그 후 모든 유치 및 영구치에서 법랑질 형성부전증이 관찰되어 수복 술식, 교정적 치료 및 최근 보철 치료까지 완료하였다. 두 번째 증례는 만 9세 3매월된 환아로 유치 및 영구치에서 법랑질 형성부전증이 관찰되었다. 수복 치료가 시행되었고 보철 치료는 성장 완료 후 시행하기로 계획하였다. 본 증례들을 통하여 법랑질 형성부전증은 유치 및 영구치 모두에 발생할수 있으며 장기간의 치료 및 관리가 필요하다는 것을 알 수 있었다.

기업지배구조 개선에 관한 뉴욕증권거래소(NYSE)와 나스닥(NASDAQ)의 상장기준개정안 및 SEC 규칙의 고찰

김순석 한국기업법학회 2003 企業法硏究 Vol.14 No.-

After the enactment of the Sarbanes-Oxley Act of 2002, the SEC and SROs adopted numerous rules and regulations according to the authorization of the Act. The purpose of this article is to analyze recent developments of corporate governance practices in listing rules of the NYSE and NASDAQ and SEC regulation. Until the enactment of the Sarbanes-Oxley Act of 2002, there was a basic functional divide between federal and state corporate laws: while federal law through SEC was concerned with disclosure, state law through statutes and court cases was concerned with internal corporate affairs such as relative rights of shareholders and managers, breach of fiduciary duty. Stock exchanges through listing rules are also an important source of corporate governance regulation. However, the Sarbanes-Oxley Act of 2002 generates friction with this longstanding functional divide between federal and state law. Three areas of federal incursion into the state realm of corporate governance in the Sarbanes-Oxley Act of 2002 are executive compensation, board structure and function and regulation of attorneys appearing and practicing before the SEC. This article analyzes each subject of corporate governance comparatively among SEC, NYSE and NASDAQ. It deals with the background of the amendment of the listing rules and the scope of their application. Also it discusses the effective dates and transition period. The requirement of majority of independence directors, the definition of independence, executive sessions, nominating/corporate governance committee and compensation committee composed entirely of independent directors are also reviewed. It also discusses the limitation to qualification and compensation of audit committee, the duty and responsibility of audit committee, equity compensation plan, code of business conduct and ethics, the disclosure of discrepancies of foreign corporate governance practices. Finally this article deals with the implications of the amendment of listing rules of the NYSE and NASDAQ to Korean companies which are listed on those markets. Especially it discusses the independence of audit committee member, the duty and responsibility of audit committee including the appointment and oversight of outside directors.

연근 분말 첨가가 식빵 반죽에 미치는 영향

김영숙,전순실,정승태,김래영 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.6

The quality characteristics of dough with lotus root powder were investigated. As the content of lotus root powder increased, doughs showed higher water absorption, lower stability and longer development time than control as measured with a farinograph. Extensibility decreased with the increase of lotus root powder. As the addition of lotus root powder increased, the doughs has higher gelatinization temperatures and maximum viscosities than control as measured by amylograph. And the pH of the dough also increased by the increase of lotus root powder.