다중음성치료기법(SK-MVTT)이 성대결절 환자의 음성개선에 미치는 효과 : 액센트 기법과의 비교 연구 Comparison with Accent Method

김성태,정옥란 한국음성과학회 2004 음성과학 Vol.11 No.4

Vocal nodule is one of the representative chronic diseases of vocal folds, and it can be cured by voice therapy. However, the existing therapeutic methods about vocal nodule are in great demand. The purpose of this study was to evaluate the effect of therapeutic methods between Accent method and SK-MVTT (Seong-Tae Kim's multiple voice therapy technique), which was designed by the author. We identified 40 females, who diagnosed having vocal nodules, aged from 21 to 52 years (mean age: 40 years). Twenty females were treated by the SK-MVTT and the other 20 females the Accent method. All subjects received 12 sessions of treatment, and were evaluated after finishing the 6th and the 12th session. The results showed that the SK-MVTT produced a better results compared to the Accent method. The SK-MVTT was better especially at the initial stage of voice therapy compared to the Accent method. In this study, we can suggest that SK-MVTT may be useful in improving the voice qualities of vocal nodule patients. However, more data should be collected and evaluated before it can widely be used in other clinics.

웃음을 이용한 다중음성치료기법(SKMVTT<SUP>®</SUP>)이 성대용종 환자의 음성개선에 미치는 효과

김성태(Seong-Tae Kim),정옥란(Ok-Ran Jeong),안철민(Cheol Min Ahn) 한국음성학회 2008 음성과학 Vol.15 No.2

Vocal polyp is one of the representative chronic diseases of vocal folds, and it can be cured by voice therapy and/or laryngeal microsurgery. However, the existing therapeutic methods about vocal polyp are in great demand. The purpose of this study was to evaluate the effect of vocal improvement between laryngeal microsurgery and SKMVTT<SUP>®</SUP>(Seong-Tae Kim's Multiple Voice Therapy Technique), which was designed by the author. We identified 37 patients, who were diagnosed with unilateral vocal polyp, aged from 21 to 62 years(mean age: 46 years). 21 patients were treated by the SKMVTT<SUP>®</SUP> and the other 16 patients were only treated by the laryngeal microsurgery. All patients who were treated by the SKMVTT<SUP>®</SUP>, received 12 sessions of treatment, and were evaluated before therapy and after finishing the 12th session. The patients who were treated by laryngeal microsurgery, were evaluated prior to and at least 8 weeks after surgery. The results showed that the SKMVTT<SUP>®</SUP> produced better results compared to the laryngeal microsurgery alone. The SKMVTT<SUP>®</SUP> produced better results, especially, at the initial stage of voice therapy compared with those of laryngeal microsurgery. In this study, we can suggest that SKMVTT<SUP>®</SUP> may be useful in improving the voice qualities of vocal polyp patients. However, more data should be collected and evaluated to be widely used in other clinics.

염소를 포함한 액체에서의 금박막 패터닝과 표면 분석

성덕경,최정옥,안일신,김옥경 한양대학교 이학기술연구소 2004 이학기술연구지 Vol.7 No.

금박막은 높은 전도성의 화학적인 안정성을 가지고 있으므로 GaAs를 기판으로 한 bevice에서 널리 쓰이고 있으며 SAM(Self-Assembled Monolayer), Nanolithography 등에서도 아주 주요하게 사용되고 있다. 본 연구에서는 염소가 포함된 액체에 금박막이 접해있고 UV를 조사하여 식각이 되는 것을 발견하고 연구하였다. 노광량을 조절하여 금박막의 기각률을 조절할수 있으며, 또한 가모강제 공정을 거치지 않고 금박막에 직접 조사하게 되므로 간단하게 패터닝을 할수 있다. AFM(atomic force microscope), optical microscope, ellipsometry 를 이용하여 식각률 측정 및 표면 변화를 보았다. Various metals or their alloys are used in the semiconductor metallization process or in micro-or nano-structure devices. We report a novel etching technique of gold film based on new phenomenon that gold is soluble in chlorine containing solutions or solvents under UV irradiation. Mask patterns can be transferred to gold surface directly without resorting to complicate photoresist process. And, etch rate could be controlled from sub nanometer to few tens of nanometers per minute by adjusting exposure parameters. Moreover, non-toxic liquid such as NaCl solution can be used for the process. AFM(atomic force microscope), optical microscope, ellipsometry were used to characterize the etch rate and the surface morphology.

중소제조기업의 경영혁신운동에 관한 비교연구

전춘옥, 박성규 가톨릭대학교 산업경영연구소 2001 産業經營硏究 Vol.- No.9

디지털 이미지 보호를 위한 효과적인 웨이브릿 변환

홍성표,박영옥,송기범,배일호,이준 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

The use of digital imaging technique and digital contents based on internet has grown rapidly for last several years, and the needs of digital image protection become more important. For the purpose of copyright protection on digital image, the verification of authentication techniques like content authentication, ownership authentication, illegal copy and etc are needed. Digital watermarking, the invisible encryption technique to insert digital watermark into image, the sophisticated perceptual information should be used for providing transparency and robustness of images on watermarking process. In this paper, we implement the algorithm for preventing forged attack, ownership protection and authentication by transforming the wavelet algorithms in frequency domain in terms of human visual system.

정전위 SSRT법에 의한 해양구조물용 Cu함유 고장력저합금강의 수소취성한계전위 규명에 관한 연구

김성종,박태원,심인옥,김종호,김영식,문경만 한국해양대학교 해양과학기술연구소 2001 硏究論文集 Vol.10 No.1

A marine structural material was well known to have high tensile strength, good weldability and proper corrosion resistance . Cu-containing high strength low alloy (HSLA) steel was recently developed for their purposes mentioned above, And the steel is free about preheating for welding, therefore it is reported that shipbuilding cost by using it can be saved more or less. However the marine structural materials like Cu-containing HSLA steel are being generally adopted with cathodic protection method in severe corrosive environment like natural sea water but the high strength steel may give rise to Hydrogen Embrittlement due to over protection at high cathodic current density for cathodic protection. In this study, Cu-containing HSLA steel using well for marine atructure was investigated about the susceptibility of Hydrogen Embrittlement as functions of tensile strength, strain ratio, fracture time, and fracture mode, etc. and an optimum cathodic protection potential by slow strain rate test(SSRT) method as well as corrosion properties in natural sea water. And its corrosion resistance was superior to SS400 steel , but Hydrogen Embrittlement susceptibility of Cu-containing HSLA steel was hider than that of SS400 steel. However Hydrogen Embrittlement of its steel by SSRT method was showed with pheonomena such as decreasing of fracture time. strain ratio and fracture mode of QC (quasi-cleavage) Eventually it is suggested that an optimum cathodic protection potential not presenting Hydrogen Embrittlement of Cu-containing of HSLA steel by SSRT method was from-770mV(SCE) to - 900mV(SCE) under natural sea water. (Received September 21, 2000)

소금이 마우스에서 고형암의 성장과 면역활성 및 지질과산화에 미치는 영향

정근옥,이강윤,이성갑,박건영 부산대학교 김치연구소 2002 김치의 과학과 기술 Vol.8 No.-

There are several types of salts, which are classified into raw salt (Chunil salt, CS), purified salt (PS) and processed salts (Gueun salt, Bamboo salt) in Korea. Gueun salt (Gs) is made by baking CS in the ceramic vessel at 800℃. Bamboo salt (BS) is produced by baking CS, bamboo and mud in an oven at 1,300℃. In this study, effects of these salts on tumor formation, NK (natural killer) cell activity and lipid peroxidation in kidney and heart were investigated in the sarcoma-180 cell transplanted mice. Sarcoma-180 cells were transplanted subcutaneously into the left groin of Balb/c mice. Then, various kinds of salt, including 1 time heat treated KCI mixed BS-A (CS : KCI =3:7)and B (CS : KCI = 5:5), supplemented diet at concentrations of 10% were fed for 21 days from 24 hours following transplantation. The body weight decreased when 10% salt added diet was fed to the sarcoma-180 cell treated Balb/c mice. The body weights of CS, PS and treated groups were lower than their initial weights (19 ~ 20 g). Spleen and liver index were lower in the mice administered PS and GS than sarcoma-180 cell treated control group. KCI mixed BS-A and B reduced the content of malondialdehyde (MDA) in the kidney and heart that increased by the injection of sarcoma-180 cells. The feeding of PS in the diet increased the levels of MDA in the kidney and heart of sarcoma-180 treated mice compared to the control group. These results exhibited that KCI mined BS could suppress.

싱글 튜브 시스템 BTA 工具를 使用한 SM55C 鋼의 深孔 加工 特性에 관한 硏究

全泰玉,全彦燦,沈成輔,張性圭 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.2

The BTA deep hole machining has an increasing demand because of its wide applications and its good productivity. The main feature of the BTA drill is that the tool cutting edges are unsymmetrically located on the boring head. This provides a stabilizing cutting force resultant necessary for self guidance of the boring head. The BTA drills are capable of machining for having large length to diameter ratio in single pass. The study of the accuracy and surface finish of holes produced would reveal quite useful information regarding the process. This thesis deals with the experimental results obtained during single tube system BTA machining on SM55C steel for different machining conditions.

제주도 서귀포시지역의 용도지역별 하수발생량 특성에 관한 연구

정광옥,류성필 한국환경과학회 2004 한국환경과학회지 Vol.13 No.3

To identify the characteristics of wastewater flow generated in treatment basins of Seogwipo-city, we selected 3 stations representing the basin and performed 7 times of field survey including 5 times in dry periods and 2 times in wet periods from Feb. 25 to May 27, 2002 for the selected stations. From the analysis of flow data measured for more than 60 days in the interval of 5 minutes and concentration data obtained from laboratory analysis, we can draw several conclusions. First, in the analysis of diurnal variation of wastewater flow for land-use types, we could find the following results: in the residential area, it is observed that wastewater flow rates rise early in the morning for the office-going hour and fall gradually and rise again after the office-leaving hour, showing typical residential wastewater flow pattern, while for the residential and commercial area flow rates rise early in the morning at the office-going hour and move up and down repeatedly within wide range and last till the office-leaving hour, which can be resulted from wastewater that is generated by tourists activated after early in the afternoon, while for the touristy area flow rates rise early in the morning and fall gradually and rise again within wide range. Second, in the analysis of temporal variation of wastewater flow for monthly, it can be observed that in the residential area, in the residential and commercial areas the flow rate of May is higher than that of Feb., March, while for the touristy area flow rate is without monthly because it reflects the movement of population, Third, in wet periods concentration of water-quality item such as SS, BOD, and COD_(cr) is high in the beginning of rainfall by first flush, and falls down gradually to reach the steady state, which is the level of wastewater in dry periods after the cease of storm water due to diluting effect resulting from additional runoff water through storm sewers.

금강에 인접된 지역에서 발생하는 빨간집모기(Culex pipiens L.)의 살충제 저항성

이성옥,김정화 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

Resistance monitoring of mosquto, Culex pipiens L collected in the areas(munyi, kongju, puyo and kunsan) near the Kum River(Geumgang) in 1998, was investigated by comparing the resistance ratios to four organophosphorus (chlorpyrifos, dichlorvos, fenthion, fenitrothion), one carbamate (propoxur) and two pyrethroid(permethrin, fenvalerate) insecticides, and by determining the occurrence of esterase activities The sensitivities to insecticides used in this experiment were low but for carbamate The resistance ratio to propoxur was high, 43~75 times In agar gel electrophoresis, activities of esterase bands was high in kunsan, and low in munyi Est-α2βb was shown 79~100% of occurrence in all strains. Rare esterase band was Est-α3βc and it was increased according to downstream of the river.