골격성 Ⅲ급 부정교합자의 정모 두부규격방사선 계측학적 특징

정송우,홍성규,김정기 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.3

골격성 Ⅲ급 부정교합 환자의 정확한 진단과 분석에 있어서 삼차원적인 골격부조화의 양상이나 안면부조화의 원인을 파악하는 것은 중요하다. 본 연구에서는 정모 두부규격방사선 사진 상에서 나타나는 골격성 Ⅲ급 부정교합자의 계측학정 특성을 파악하기 위하여, 양호한 안모와 교합을 가지는 성인 남녀 정상교합자 60명을 전후방적 부조화가 심한 Ⅲ급 부정교합을 가지는 성인 남녀 60명을 대상으로 측모와 정모 두부규격방사선 사진의 투사도를 작성하여 안면 폭경, 고경, 각각의 비율, 측모계측치에 대응되는 정모계측치의 비율을 구하였고, 각각의 계측치와 비율을 비교, 분석하여 다음과 같은 결론을 얻었다. 1. 골격성 Ⅲ급 부정교합자에서 골격의 전후방적 부조화는 정상군보다 상악골길이(Cd-A)가 짧은 것보다는 하악골길이 (Cd-Gn)가 긴 것에 기인하였다. 2. 골격성 Ⅲ급 부정교합자는 정상교합자보다 긴 안모를 가지는데, 이는 상안면고경(Cg-ANS)보다는 하아면 고경(ANS-Me), 특히 하악골 고경(Cd-Me)의 증가로 인한 것이었다. 3. 골격성 Ⅲ급 부정교합자의 폭경은 단지 여자의 상·하악 대구치간 폭경(U6-U6, L6-L6)과 하악폭경(Ag-Ag)만 정상교합자보다 컸을 뿐, 이외 어떤 폭경항목도 정상과 차이가 없었다. 4. 골격성 Ⅲ급 부정교합자의 하악골 길이의 증가는 안모의 고경 특히 하안면 고경의 증가로 나타나지만, 하아골 폭경에서는 나타나지 않았다. In proper diagnosis of skeletal ClassⅢ malocclusion, it was important to know the pattern of three dimensional skeletal & facial disharmony. The purpose of this study was to obtain P-A cephalometrice characteristics in skeletal ClassⅢ malocclusion comparing with normal occlusion. The samples were consisted of 120 subjects, divided into four groups : Male normal occlusion, Female normal occlusion, Male skeletal ClassⅢ malocclusion, Female skeletal ClassⅢ malocclusion. Posteroanterior and lateral cephalogram were taken from the subjects with a x-ray apparatus(ASHAI CS90SP, Japan) and traced on acetate paper with routine manner. The transverse and vertical values from posteroanterior cephalometry, the sagittal values from lateral cephalometry and their ratio were obtained. The results were as follows : 1. The anteroposterior discrepancy in skeletal ClassⅢ group was not due to short maxillary length(Cd-A), but to longer mandibular length(Cd-Gn) than normal occlusion group. 2. The faces of skeletal ClassⅢ group were longer than normal occlusion group. It was not due to increase of upper face height(Cg-ANS) but to increased of the lower face height(ANS-Me) especially mandibular height(Cd-Me). 3. There was no difference in the facial width values between normal occlusion group and skeletal ClassⅢgroup, except upper molar width(U6-U6), lower molar width(L6-L6) and mandibular width(Ag-Ag) of female skeletal ClassⅢ group which were larger than normal occlusion group. 4. The increase of mandibular length of skeletal ClassⅢ group was reflected in the increase of lower facial height but did not have an effect on the mandibular width.

어휘조직의 자율성에 대하여

정성윤 대구대학교 인문과학연구소 1995 人文科學硏究 Vol.13 No.-

This paper attempts to justify that the organization of a word is independently motivated and it is equipped with sufficient information ready to support its adjacent area(e.g. the sentence level). The theory is based on the assumption that the internal structure of a word comprises three substructures. I claim that these structures should be interpreted by context free methodology-an integrated lexical theory which in other words, means that the internal structure of a word should be elucidated by the Strong Lexicalist Hypothesis(SLH). Structure 1 represents morphological structure of a word, which necessarily bears its own iconicity. I estimate that, on the bases of word-based hypothesis, the applications of Truncation Rule(TR) and Allomorphy Rule(AR) are natural and productive for word derivation in both English and Korean. I propose that the definition of Base From for Word Formation Rule(WFR), stated in Aronoff(1976) as "a single already existing word" should be amended as "a stem bearing lexical category". In principle, I follow the theory that the organization of word structure is nonconcatenative(nonlinear) claimed by McCarthy(1979), Selkirk(1982), etc. The function of Structure 2 is (1) to express the relationship between Structure 1 and Structure 3 by means of association convention which connects Structure 1 to Structure 2 and lastly connects Structure 2 to Structure 3, and (2) to formulate the primary syllable structure. The syllabe in Structure 3 should be represented by binary branching tree advocated by Halle & Vergnaud(1980), Kaye & Lowenstamn(1981), etc. To prove that such structure is universal, I examplified with Korean words. I finally confirm that inflectional and derivational affixations are likely to be explained by a single integrated lexical theory, and in terms of organic functions of three substructures in a word the autonomy of word structure is thus justified.

전압제어 GIC를 이용한 대역 및 고역통과 필터의 특성 비교

송명석,노경호,김왕식,박종연 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-

In this paper, we have presented comparative characteristics of band-pass filter and high-pass filter using VCGIC(Voltage Controlled Genenalized Impedance Converter), which are the non-linearized VCR(Voltage Controlled Resistance) and the linearized VCR. We concluded that the linearized VCGIC circuit has the wide dynamic range and the improved linearity.

대형 충격해머를 이용한 구조물 동특성 실험

송민석,정현호,전종균 선문대학교 2001 공학계열 논총 Vol.4 No.-

본 논문에서는 대형 구조물 내의 진동원인 공조기, 펌프 등을 설치, 가동시 구조물의 동적 응답을 예측하고 건물 구조개선 방안을 제시하는데 목적을 두고 있다. 구조물에 대한 동특성 해석은 해석적인 방법과 실험적인 방법으로 이루어지고 있다. 두 가지 방법 중 본 논문에서는 실험적인 방법을 통해서 구조물 동특성 해석을 시도해 보았다. 자체 제작한 대형 충격 해머(Large Impact Hammer)를 이용해서 구조물 바닥부분에 충격을 가진하여 물체에 작용하는 힘과 이로 인하여 발생되는 진동을 각각의 센서에 의해 측정, 분석하여 구조물의 모드형상을 확인하고 고유주파수를 측정하였다. 해석결과에서는 대형 충격 해머를 이용하여 대형 구조물의 동특성 테스트가 가능할 것이라는 것도 예상할 수 있었고, 임의의 진동원 설비가 설치되어 있는 구역에서 구조물의 동특성을 알고 진동원 가동시 발생하는 진동레벨을 측정하여 실험적으로 구하면 임의의 진동원 설비에서 발생하는 동하중이 산출 가능함을 알 수 있었다. 역으로 구조물의 동특성과 진동원의 동하중을 알면 구조물에 발생하는 진동레벨을 예측할 수 있음을 확인하였다. This paper predicted dynamic responses of structures and presented the solution of structural improvements when vibration sources(pump, motor etc.) were activated in structures. The analyses for the dynamic characteristics are the experimental method and theoretical analysis. This study used the experimental method. The mode shapes and natural frequencies are obtained by large impact hammer. It is possible to test the dynamic characteristics of structures using impact hammer. If it is possible to measure the vibration level when vibration sources were operated, it would be possible to compute dynamic weight. On the other hand, the vibration level could be calculated if dynamic weight can be measured.

접어의 형태통사적 특성

정성윤 신영어영문학회 1998 신영어영문학 Vol.11 No.-

This paper aims ① to examine the nature of clitics in conjunction with its directionality, ② to explicate morphosyntatic dependency of cliticization, and ③ to propose a universal parametric device with special reference to English cliticization since Klavans'(1985) parameter has been formulated by focusing on clitic phenomena of various other languages than English clitics. To derive the corollary with above topics, the presentation has dealt with the identity of clitics, namely the clitic placement, the differences between cliticization and affixation, interaction of morphology-syntax in English cliticization. I confirmed the fact that for substantive cliticization which I call it Primary Cliticization (not syntactic cliticization), a host can be a memeber of any word class, but must be dominated by NP, and phonological processes(a collateral effect) are similar to those of affixation. With some examples I have demonstrated the fact that the identity of clitics is not derived by pure phonological rules and it should be counted as an allomorph of a full word(morpheme). To account for the function of phonological cliticization and syntatic cliticization in English, I assumed the former to be Primary Ciliticization (PC) which, in syntactic context, is substantial element causing a semantic difference by being a constituent of host word(or phrase), and latter to be Secondary Cliticization(SC) which is merely being developed as a concomitant part without visible host and, therefore, it has no specific role by itself in the context. Incidentally, I found that Auxilliary Reduction(AR), as a process of PC, may not apply if the element following the auxiliary is not the same as the element that follows it at NP-structure. In reviewing the existing parameter for direction of cliticization, though it has extended much influence upon the motivation of this paper, it satisfies primarily the interpetation of various evidences of cliticization from other languages than English cliticization. As a result, I found that the less distinctive power for the segregation of cliticization from affixation and some unnecessary parametric descriptions for English clitization are implicated in P1, P2, P3. Therefore, I finally made a proposal which, together with justifiable evidences and explanation, is adaptable for the interpretation of English cliticization.

大田市 下水道計劃에 關한 硏究

宋錫哲,李鍾珏 大田工業高等專門學校 1968 論文集 Vol.3 No.-

This thesis is, as the first step in establishing the sewerage plan, the report of studying the problems and devices on the sewerage planning in future by means of investigating and analysing these streams, through which the filthy water flows. In Taejon stream, flowing through the center of the city, and Dae Dong stream which flows front the east of it, the centaminating of them is so extreme that I am going to present the following devices in a respect that we should consider a counter-measure of purifying these streams in order to prevent it. The problems and devices of a sewerage planning are like these: 1. To make the draining smooth by means of completing the sewerage systems in the whole city. 2. To eliminate the filthy water by establishing the intercepting sewer on stream street. 3. To set up a treatment division of industrial waste water. 4. To make designers replace the water carrage toilets with flush ones in constructing of them, when they received permission for building houses. 5. To protect the region of the downstream from the damage of filthy water, by establishing sewerage treatment plants. By carrying out the above mentioned five projects urgently, I think that we are able to obtain the cheerfulness and the sound sanitation of the city.

2수석고-고로슬래그계의 수화반응

宋宗澤,朴商直 단국대학교 1984 論文集 Vol.18 No.-

The kinetics and mechanisms on the hydration of gypsum-blastfurnace slag systems were studied by combined water and unreacted slag determinations, XRD, DTA and SEM. According to the result, it was found that the optimum aluminium sulfate content for activating gypsum-blastfurnace system was small (around 2%) and the hydration processes taking place below and upper the optimum aluminium sulfate content were very different from each other.

A Reanalysis of 'Asymmetry' in Lexical Strata

정성윤 대구대학교 외국어교육연구소 1992 외국어교육연구 Vol.7 No.-

항균제 내성 폐렴구균 감염증의 치료

송재훈,이종헌 대한화학요법학회 1996 대한화학요법학회지 Vol.14 No.2

遠隔制御用컴퓨터인터페이스에 관한 硏究

송철,박종백,이웅기,이강현,양원일 조선대학교 동력자원연구소 1988 動力資源硏究所誌 Vol.10 No.1

This paper deals with the computer interface for the remote control in factory automation, and the concatenated IBM PC, designed interface card, temperature sensors and displayer. As the results 1. easy to expand and maintain the objects of upgrade levels. 2. easy to measure the temperature of product lines. 3. applications can be extended by using IBM PC and its function.