경부형 전기인공후두 Blueton의 개발과 음향학적 성능 분석

최성희,박용재,박영관,김태정,남도현,임성은,이성은,김한수,최홍식,김광문,Choi, Seong-Hee,Park, Young-Jae,Park, Young-Kwan,Kim, Tae-Jung,Nam, Do-Hyun,Lim, Sung-Eun,Lee, Sung-Eun,Kim, Han-Soo,Choi, Hong-Shik,Kim, Kwang-Moon 대한후두음성언어의학회 2004 대한후두음성언어의학회지 Vol.15 No.1

Electrolarynx(EL), battery operated vibrators which are held against the neck by on-off button, has been widely used as a verbal communication method among post-laryngectomized patients. EL speech can produce easily without need of any additional surgery or special training and be used with any other methods. This institute developed a neck-typed EL named "Blueton" in commperation with EL Company Linkus, which consists of 3 parts : Vibrator part, Control part, Battery part. In this study we evaluated the acoustic characteristics of the produced voices by Blueton compared with Servox-inton using MDVP. Three EL users (2 full time users, 1 part time user) were participated. The results revelaed that NHR higher in Servox than Blueton and intensity is higher in Blueton than Servox. The spectra for vowels produced by EL speakers are mixed signals combined with talkers' vocal output and electrolarynx noise. The spectra pattern is similar with two ELs. High, SPI index and vowel spectra from MDVP demonstrated characteristics of both electrolarynxes related to noise signal. This finding suggests that Blueton helps to provide one of useful rehabilitation options in the post laryngectomy patients.

전기성문파형검사를 이용한 모음과 공명 자음의 발성특성

최성희,남도현,임재열,임성은,최홍식,Choi, Seong-Hee,Nam, Do-Hyun,Lim, Jae-Yol,Lim, Sung-Eun,Choi, Hong-Shik 대한후두음성언어의학회 2004 대한후두음성언어의학회지 Vol.15 No.2

Background and Objectives : Vowels and resonant including nasals and liquid are produced with vocal folds vibration have been used for voice therapy of hyperadduction patients. This study was conducted to investigate phonatory characteristics of vowels and resonant consonants through the EGG measures from Lx. Speech studio (Laryngograph Ltd, UK). Materials and Method : 7 male adults produced sustained vowel /a/, /i/, /u/, nasals /m/, /n/, /${\eta}$/and liquid /I/ and read the sentences (1nasals-liquid sentence, 1 non-nasals-liquid sentence) and tongue-tip trill and humming. Fx(Hz), Ox(%) were obtained of vowels, nasals, liquid and each of the posterior vowel /a/ of /ma/, /na/, /la/, /ha/ with same F0(around F#165Hz) and amplitude (75${\pm}$5db). And also DFx(Hz), DQx(%), CFx(%) and CAx(%) were obtained from reading two kinds of sentences. Results : Qx(%) was the highest in /u/ of vowels, and nasal/n/ of the resonant consonants and nasals-liquid sentence was higher Qx than non-nasals-liquid sentence but significant differences were not found. Qx(%) of the posterior vowel /a/ of nasal consonants/n/ was higher than in the isolated vowel/a/ and other posterior vowel of resonant consonants and fricatives /h/. Regularity or periodicity and higher Qx were observed in the nasals-liquid sentence than non-nasals-liquid sentence in graphs of QxFx & CFx produced by Quantiative analysis. In the nasalance score, /u/vowel was significant higher among the vowels and /I/ liquid was significant lower among the resonant consonants and nasals-liquid sentence is higher than non-nasals -liquid sentence. CQ(%) was not significantly correlated with nasalance(%). Conclusion : These findings might signify resonant phonation was not correlated with nasalance.

광촉매 Cds , ZnS 를 이용한 광화학반응 - DHP vesicle 분산계에서 -

최성희,한명남,차민환 ( Sung Hee Choi,Myung Nam Han,Min Whan Cha ) 한국화학공학회 1995 화학공학의이론과응용 Vol.1 No.2

한국 자생나리의 휘발성 향기성분

최성희,임성임,장은영,김규원,Choi Sung-Hee,Im Sungim,Jang Eun-Young,Kim Kiu-Weon 한국생명과학회 2005 생명과학회지 Vol.15 No.4

향이 은은하며 향장류의 원료로 이용 가능한 한국의 자생나리인 중나리, 하늘나리, 하늘말나리, 섬말나리 및 털중나리를 중심으로 분화용 자생나리의 개발 및 방향제 개발의 이용 가능성을 위한 기초 자료를 위해 휘발성 향기성분을 연속수증기증류법을 이용하여 추출하고 GC 및 GC-MS로 분석하였다. 그 결과, 자생나리류의 휘발성 향기성분으로는 hexanal, nonanal 등의 aldehyde류 28종, $\beta-ionone$ 등의 ketone류 9종, linalool 등의 alcohol류 8종, methyl hexanoate 등의 ester류 5종, 2-furoic acid 등의 acid류 5종, 2-pentyl furan 등의 furan류 3종 및 기타 2종 등 총 60종의 화합물을 추정 또는 동정하였다. 한국 자생나리의 관능적 특성으로, 중나리는 은은한 향과 분쇄한 토마토의 신선향, 하늘나리는 가열한 호박의 달콤함, 섬말나리는 감흥시의 달콤한 향과 신선한 풀향등을 느낄 수 있었다. 휘발성 성분으로는 중나리는 hexanal, hexanol 및 (E)-2-hexenal의 함량이 많았으며, 하늘나리는 풋풋한 풀냄새에 기인하는 (E)-2-hexenal과 hexanal의 함량이 많았으나 꽃향이나 산뜻한 과일향을 갖는 linalool의 함량도 많았다. 또한 꽃향을 나타내는 phenylacetaldehyde와 꿀향, 머스크향으로 알려져 있는 methyl phenylacetate의 함량도 많았다. 하늘말나리는 하늘나리와 유사한 성분이 함유되어 있었지만, 특징으로 linalool의 함량이 많고 장미꽃향을 띄는 phenylethyl alcohol이 동정되었다. 섬말나리의 경우 풀냄새에 기여하는 (E)-2- hexenal의 함량이 나리시료 중 가장 많이 함유되어 있었고, 강한 풀냄새를 갖는 2,6- nonadienal도 함유되어 있었다. 털중나리의 경우 (E)-2-octenal과 phenylethyl alcohol의 함량이 특히 많은 것이 특징이었다. Volatile fragrance components in 5 kinds of Korean native Lilium were investigated and compared. The volatile components were extracted by SDE (simultaneous steam distillation and extraction) and identified by CC and GC-MS. As a result of the analysis of volatile aromatic ingredient of L. leichtlinii var. tigrinum Nickels., L. concolor var. parthneion Bak., L. tsingtauense Gilg., L. hansonii Leichtl., and L. amabile Palibin., using frozen materials, 60 kinds of volatile compound were identified, which were 28 aldehydes, 9 ketones, 8 alcohols, 5 esters, 5 acids, 3 furans and 2 others. The GC patterns of the aroma components of all samples resembled but the peak areas were different according to species, though all of them are Korean native Liliums.

메밀녹차의 향기성분

최성희,Choi, Sung-Hee 한국생명과학회 2007 생명과학회지 Vol.17 No.8

The volatile flavor components of buckwheat (Fagopyrum esculentum Moench)-green tea were analyzed and identified. To make tea having good flavor and functional property, parched buckwheat (50%) was mixed with green tea (50%). The extraction of volatile flavor compounds of buckwheat-green tea was accomplished by a simultaneous distillation and extraction method using a Likens and Nickerson's extraction apparatus. The concentrated extract was analyzed and identified by gas chromatography and GC-mass spectrometry. The main volatile flavor components of buckwheat-green tea were compounds that originated from parched buckwheat and the green tea. The former were 15 pyrazines having roasted and nutty aroma and methylbutanals and furfural having sweet-aroma. The latter were nerolidol, linalool, indole, ${\beta}-ionone$ and geraniol etc having flower-like odor in green tea. 생리활성을 갖는 것으로 알려진 메밀을 고소하게 볶은 시판 메밀차를 중급 정도의 녹차에 혼합하여 메밀녹차를 제조하고 기호도와 관련이 있는 향기 성분을 동시증류추출(SDE) 장치를 사용하여 분석하였다. 메밀차와 녹차를 1:1로 혼합한 메밀녹차의 향기성분으로 42종류를 동정하였다. 메밀녹차에는 메밀차의 향기성분 23종류와 녹차의 향기 성분 16종류 및 공통으로 포함된 3종류의 화합물들로 구성되어 있었다. 메밀녹차의 향기성분으로는 15종류의 pyrazine류를 동정하였다. 이는 메밀녹차의 향기 성분 중 약 32%를 차지하는 비율이었다. 메밀녹차의 향기 성분은 본래 녹차가 가지고 있는 향에 구수하고 달콤한 향을 띄는 볶음 메밀의 향기성분들이 부여되어 생성된 것으로 밝혀졌다. 본 연구에서 사용한 녹차는 중급 정도에 해당되는 덖음차로 고급녹차에 많았든 linalool이나 geraniol은 적은 함량 포함되어 있었으나 녹차향에 기여하는 꽃향기를 띄는 nerolidol의 함량은 많았으며 nonanal, 2-phenylethanol, cis-jasmone, indole 및 ${\beta}-ionone$ 등도 함유되어 있었다. 복은 향의 중요성분으로는 roasted flavor인 pyrazine류와 pyrrole류, 달콤한 향을 띄는 methylbutanal류와 furan류 등으로 밝혀졌다. 특히, pyrazine류는 종류도 많고 함량도 메밀차 전체 면적의 56%로서 녹차에 혼합되었을 때 메밀녹차의 고소한 향에 크게 기여하는 것으로 나타났다.

보간법을 이용한 수치적분법의 평균 오차에 관한 연구

최성희,황석형,이정배,홍범일,Choi, Sung-Hee,Hwang, Suk-Hyung,Lee, Jeong-Bae,Hong, Bum-Il 한국정보처리학회 2004 정보처리학회논문지 A Vol.11 No.5

Among many algorithms for the integration problems in which one wants to compute the approximation to the definite integral in the average case setting, we study the average case errors of numerical integration rules using interpolation. In particular, we choose the composite Newton-Cotes quadratures and the function values at equally spaced sample points on the given interval as information. We compute the average case error of composite Newton-Cotes quadratures and show that it is minimal(modulo a multiplicative constant). 이 논문에서는 정적분의 근사 값을 계산하는 여러 적분 문제 중에서 보간 법을 사용하는 수치적분법의 평균오차에 대해서 연구한다. 특히 가장 널리 쓰이고 있는 방법 중의 하나인 복합 Newton-Cotes 구적법의 평균오차에 대해서 연구한다. 주어진 구간을 등 간격으로 나누었을 때, 각 점에서의 함수 값을 information으로 사용할 경우, 복합 Newton-Cotes 구적법의 평균오차를 계산하였으며, 이 때 이 오차는 가장 최소임을 이 논문에서 증명한다.

인증표준물질(CRM)을 이용한 방사면역측정법의 회수율 평가

최성희,신선영,임소희,홍미경,노경운,김진의,Choi, Sung Hee,Shin, Sun Young,Lim, So Hee,Hong, Mee Kyung,Noh, Gyeong Woon,Kim, Jin Eui The Korean Society of Nuclear Medicine Technology 2014 핵의학 기술 Vol.18 No.1

Purpose: Reference material (RM) is defined as material that is safe and homogeneous enough about specified characteristic that is made with a purpose of using test of measurement or nominal characteristic. Certified reference material (CRM), which is issued by authorized organization, is defined as reference material that provides characteristic value, link uncertainty and retroactivity. The purpose of this paper was to evaluate recovery of radioimmunoassay by Certified Reference Material enclosed with a certificate and therefore to enhance reliability of test. Materials and Methods: WHO certified reference material is purchased from NIBSC (National Institute for Biological Standard and Control, United Kingdom) and made of 3 levels that are C-1 (low concentration), C-2 (medium concentration) and C-3 (high concentration) and measured for kit at the Seoul National University Hospital. Recovery rate is evaluated after measurement at four different days. Results: Recovery rate results using WHO certified reference material are T4 90%, Ferritin 88%, PSA 94%, Prolactin 99%, AFP 94% and TSH 93%. Conclusion: A procedure that appropriate accuracy, precision, specificity, sensitivity, reproducibility, and validate on the subject of kit for radioimmunoassay is essential. Recovery rate assay as extraction efficiency of analysis process is percent about already measuring results of analysis result after all measuring process. This is very important assessment standards of performance evaluation of immunoassay kit. Recovery rate results of 6 type used WHO CRM are satisfactory to 88~99%. This demonstrates that the radioimmunoassay is a very accurate measurement, which is very effectively utilized in clinical practice. 공인된 기구에 의해 발급된 문서를 동반하는 인증표준물질은 특성값과 추정값의 신뢰정도를 나타내는 연계 불확도, 그리고 측정한 결과가 명시된 불확정 정도의 범위 내에서 국가 측정 또는 국제측정표준에 일치되도록 연속적으로 비교하고 교정하는 소급성을 제공하는 표준물질이다. 회수율 검사는 검체를 측정하여 얻은 값이 참값에서 얼마만큼 벗어났는지의 차이를 말하며 키트의 정확도를 반영한다. 이러한 인증표준물질을 가지고 회수율 검사를 하는 것은 체외 방사면역진단키트의 정확성을 보여주며 이러한 평가는 매우 중요하다. 인증표준물질은 NIBSC (National Institute for biological standard and control, United Kingdom)와 IRMM (Institute for Reference Materials and Measurements, Belgium)에서 구입하였고 검사 종목은 T4, Ferritin, PSA, Prolactin, AFP 그리고 TSH으로 총 6종목이다. T4는 IRMM의 표준물질을 사용하였고 나머지 종목은 NIBSC의 표준물질을 사용하였다. C-1 (저농도), C-2 (중농도), C-3 (고농도) 3 level로 제조하여 본원에서 사용하는 키트를 이용하여 4회 측정하였다. WHO 인증표준물질을 이용한 회수율 측정에서 T4 90%, Ferritin 88%, PSA 94%, Prolactin 99%, AFP 94%, TSH 93%였다. 6개 종목의 회수율 측정에서 88-99%로 양호한 결과를 보였다. 핵의학 체외진단키트의 정확성을 높이기 위해서 이 연구가 다른 검사실의 키트로 확장되어 검사가 되어야 하고 검사실간에도 교류가 필요하다. 인증표준물질을 이용한 체외진단키트의 회수율 평가가 앞으로도 지속되어야 하며 결과의 정확성은 환자의 만족의 증가로 이어질 것으로 기대한다.

0.5 cm 이하의 갑상선 유두상암

최성희,우상욱,김대겸,김정한,남석진,양정현,Sung-Hee Choi,Sang-Uk Woo,Dae-Kyum Kim,Jeong-Han Kim,Seok-Jin Nam,and Jung-Hyun Yang 대한갑상선-내분비외과학회 2004 The Koreran journal of Endocrine Surgery Vol.4 No.1

생식과 황련해독탕(黃連解毒湯) 외용 치료를 통한 임신신양(姙娠身痒) 환자 치험 5례

최성희,김태욱,김기배,Choi, Sung-Hee,Kim, Tae-Wook,Kim, Ki-Bae 대한한방안이비인후피부과학회 2014 한방안이비인후피부과학회지 Vol.27 No.4

Objectives : The purpose of this study is to investigate the effect of eating Saengshik and applying Hwangryunhaedok-tang on skin for pregnant woman diagnosed as Pruritus Gravidarum. Methods : This case study was done on 5 Pruritus Gravidarum patients who had visited Korean Medicine Clinic. All the patients are treated with Saengshik and Hwangryunhaedok-tang was applied on their skin. VAS(Visualanalogue scale) and photographs were used to evaluate the symptom change. Results & Conclusion : Most symptoms of patients were improved in this study. Saengshik and Hwangryunhaedok-tang can be effective in patients who were diagnosed as Pruritus Gravidarum.

신생아 중환자실에 입원한 환아 어머니의 스트레스

최성희,Choi Sung Hee 한국아동간호학회 1998 Child Health Nursing Research Vol.4 No.1

The parents have much expectation upon the pregnancy and child birth, and in most cases, they expect the healthy parturient child. However, we can be placed on the high-risk conditions which have the physical, social and immature infant, due to the unexpected results, among the new-born. Accordingly, these high-risk newborn and premature infants will be mostly in NICU, which the concentrated medical treatment can be given, upon their conditions. After their birth and during these periods, they will be divided from the parents, and the nurse will accomplish the bringing-up activities which they can take care of the infant, expected by the parents after their birth. The hospitalization of high-risk newborn including these premature infants is the shocking experience to the parents of family, and thus they can feel the fear and uneasiness, and these reactions of parents are troubled in the behavior at the usual days, and cause the disorder and spiritless status, and these results break the supporting ability of parents, and cause the obstruction. Also, the unavoidable division between the parents and the children as like hospitalization of children can make the parents to feel the alienation emotionally, and this causes the results which the pride on the bringing-up ability of baby gets to be lost. These problems can cause the difficulties on the bonding or the parenting in the further days, and can be related to the neglect and abuse of children. Also, it is gradually increased to study and report which the emotional division by the physical division between the mother and the baby obstructs the normal affection course between the parent and the infant. The stress caused by the birth and the hospitalization of high-risk newborn, as like this, is important in the points which it can uncertainly affect the potential energy for the relationship of parent-child who are finally healthy. Accordingly, the significance and purpose of this study are to understand the contents and degree of stress which the parents of high-risk newborn including the immature child can be experienced from the hospitalization of ICU for their new borns, and thus to offer the basic program to the nursing intervention program for these. The subject of this study is the mother of newborn in NICU of 10 General Hospitals located at the 3one of Pusan, Korea from September 1997 to October 1997, and thus makes the subject of 95 person of parents who agreed to take part in the study and it is descriptive study related to the stress of mother having the newborn in NICU. The method is based on the preceding study related to the stress of mother having the experience of child hospitalization and chronic disease child, and then acquires the advice of specialists group as like 5 nursing professors, and then is amended and supplemented. Total number of questions is 43 items and consists of 5 factors as like medical treatment &nursing procedures, disease status & prognosis, role of parents, communication & inter-personal relationships, hospital environment, and is 5 point Likert Scale. The reliability of this study method is very highly shown to be Cronbach α=0.95. The collected data is analysed as Average, Frequency, Standard Deviation, T-test, ANOVA, Pearson Correlation Coefficient, Duncan multifulrange test by use of SPSS /PC (V7.5). The results of this study is summarized as under. 1. Every characteristics of subject is which the party of mother is 28.70age(±7.48) in the average ages, 51% in the high-school graduate, 38.5% in the christianity, total monthly income is 212.55 thousand won(±1.971), 74.5% in the housewife, 72.9% in the parents and children together living and the number of children to be 1.48person(± 0.6) in average, the recognition on the prognosis of baby is 74.0% in 'Don't know', the relationship with the husband after the hospitalization of babyis 37.3% in 'More Intimate', the relationship with the family of husband to be 48% in 'No-change', an