• 대한후두음성언어의학회지
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• 제17권2호
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• pp.107-110
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• 2006

Background and Objeetives : There are few studies reported that specifically examined the voice onset time(VOT) in patients with bilateral vocal nodules. The purpose of this study was to study the characteristics of voice onset in patients with bilateral vocal nodules. Materials and Methods : 52 female patients with bilateral vocal nodules were examined, aged from 20 to 54 years, and were compared with 25 normal female control group. All subjects produced five repetitions of the voiceless stops $/p^h,\;t^h\;k^h/$ in vowel context /ai_a/. VOT was measured by the time between the release of the stops and the onset of voicing. Results : VOTs of the voiceless stops $/p^h/\;and\;/t^h/$ in patients with bilateral vocal nodules were significantly shorter than those of normal subjects. VOT of the $/k^h/$ in them was shorter than those of normals, but the difference was not significant. This results showed that VOTs of the voiceless stops in patients with bilateral vocal nodules were shorter than those of normal subjects. Conclusion : The rapid onset of voicing in patients with bilateral vocal nodules might be associated with increased laryngeal muscle tension by hard glottal attacks. We suggest that VOT can be a clinically useful acoustic parameter for evaluating voice in patients with bilateral vocal nodules.

• 대한후두음성언어의학회지
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• 제15권1호
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• pp.16-20
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• 2004

Purpose : To assess perceptual, acoustic and aerodynamic measure of voice quality in patients with unilateral vocal cord paralysis before and after type I thyroplasty. Methods : The clinical records of patients operated type I thyroplasty in the Departement of otorhinoalryngolgy, Yongdong Severance hospital from November 2001 to November 2003 were reviewed. All patients uderwent a vocal function evaluation including perceptual, acoustic and aerodynamic measures of voice preoperative and on $60^{th}$ postoperative day. The perceptual and acoustic measures were obtained from recording of patients' reading a 'Sanchak' passage. The perceptual evaluation was performed by 2 speech pathologist using a 4-point rating scale. Acoustic parameters(voice range profile low(RAL), voice range profile high(RAH), average fundamental frequency(AFX), closed quotient, harmonic to noise ratio, jitter and shimmer) were investigated by Lx speech studio. Mean flow rate(MFR), subglottic pressure(Psub) and intensity were measured using the Phonatory function analyzer. The maximum phonation time was also measured. The data were statistically analyzed. A paired t-test (p<0.1) was used to compare preoperative and postoperative results. And multiple regression test was used to find which parameter was most correlated to improvement of postoperative voice quality. Results : Among aerodynamic parameters, Psub $(88.11mmH_2O{\rightarrow}58.7mmH_2O)$, MPT(7.87sec${\rightarrow}$12.53sec), MFR (359.8ml/sec${\rightarrow}$161.06ml/sec) were statistically improved. AFx(205.5Hz${\rightarrow}$163.27Hz), AQx(23.9%${\rightarrow}$48.3%), RAL, RAH. Jotter and shimmer were improved. In multiple regression test, AFx and AQx was noted as the two meost correlated parameters to improvement of postoperative breathiness. But general grade of voice quality was more correlated to Psub and shimmer. Conclusion : Vocal fold medialization procedures effectively reduce glottic gap. Increasing of contact area of both vocal folds induced improvement in aerodynamic parameters and leaded stabilizing of vocal fold vibration. That effect results in improvement in acoustic parameters (shimmer, jitter, signal-to-noise ratio, voice range profile) and voice quality.

• 대한후두음성언어의학회지
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• 제19권2호
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• pp.128-132
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• 2008

Background: Laryngeal contact granuloma is an inflammatory hypertrophic granulation tissue arising at around the vocal process of arytenoid cartilage. Various approaches are currently used for the treatment, but a solid guideline has not been established. Objectives: We aimed to compare the each treatment modality in the hope of suggesting a guideline for the successful management of laryngeal contact granuloma. Method: Eighty-seven treatment cases of 56 patients were analyzed. Cases having recent intubation history were excluded from the study. All patients received vocal hygiene education. Proton pump inhibitors (PPI, N = 33) or H2 receptor antagonists ($H_{2}RA$, N =26) were used as a first-line treatment. Among the non-responders to $H_{2}RA$, 11 cases received PPI as a second-line therapy. Eight cases received botulinum toxin injection and 9 cases had laryngomicrosurgical removal. Results: As an initial therapy, response rate to PPI and $H_{2}RA$ was 60.6% and 38.5% respectively, which was not statistically different (p=0.091). Response rate of PPI as the second-line therapy was 36.3% (p=0.162 when compared to that of first-line PPI therapy). Response rate of Botulinum toxin injection was 75%. All cases of surgical removal recurred in a relatively short period (mean 1.9months). Conclusion: In patients having laryngeal contact granuloma, combined therapy with vocal hygiene education and PPI medication would provide more than 60% of therapeutic response. Botulinum toxin injection is highly effective even in non-responders to antireflux therapy. The only indications of surgery are to resolve diagnostic doubt or to treat acute airway compromise.

• 대한후두음성언어의학회지
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• 제32권3호
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• pp.135-141
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• 2021

Background and Objectives Vocal process granulomas (VPGs) are benign lesions of the larynx, typically contact granulomas (CG) and intubation granulomas (IG). The two diseases are known to have different clinical manifestations despite having the same pathological features. The purpose of this study was to analyze the treatment results for CG and IG and to obtain clinical information. Materials and Method We retrospectively reviewed the medical records of patients diagnosed with VPG between January 2015 and December 2018. The patient's age, sex, medical history, lesion size, lesion type, reflux finding score, response to treatment, duration of treatment, and follow-up period were compared. Results In total, 32 patients were included in the study, of which 18 were CG and 14 were IG. In the CG group, males were dominant (n=15, 83.3%), whereas in the IG group, females were dominant (n=11, 78.6%) (p=0.0009). The response to medical treatment using proton pump inhibitor and steroid inhaler was better in the IG group (11/14, 78.6%) than in the CG group (7/18, 38.9%) (p=0.036). Of the 14 patients who did not respond to medical treatment, 5 received botulium toxin injections, and all 5 had complete remission. The duration of medical treatment was significantly longer in the IG group (p=0.0029). Conclusion IG was more common in female, and CG was more dominant in male. IG had better response to medical treatment using proton pump inhibitor and steroid inhaler than CG.

• 한국의류학회지
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• 제28권12호
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• pp.1596-1604
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• 2004

QFD(Quality Function Deployment: 품질기능 전개도)는 상품개발과정에서 소비자의 요구가 손실되지 않고 최종제품의 생산에 반영되고 시장에 투입되도록 고안된 상품개발 기술의 일종이다. 본 연구에서는 착용감이 우수한 brassiere를 개발하는 과정에서 필요한 모든 정보를 획득하기 위하여 소비자가 요구하는 제품속성과 이 제품속성을 제품 기능에 반영할 수 있는 구체적인 연구 방법론을 제시하기 위해 QFD를 이용하여 그 효율성과 타당성을 검토해 보고자 하였다. Brassiere 착용쾌적성에 대한 소비자 요구 조사를 위해 30-40대의 주부 100명에게 설문조사를 실시하였다. 소비자 요구들 중 중요 항목을 선정하기 위해 중요도 순위 조사를 5점 척도로 조사한 후, 소비자 요구 항목들은 기술적 언어로 전환되었다. 제품에 대한 소비자의 주관적 평가인 소비자 경쟁 평가를 위해 10가지 시판 brassiere에 대한 착용실험이 $28{\pm}1^{\circ}C,\;65{\pm}3\%$ RH로 조절되는 인공기후실에서 실시되었다. 소비자 경쟁 평가치는 기술적 경쟁 평가의 물리적평가치와 비교함으로써, 적절한 기술적 언어를 발굴해 냈는가를 검증할 수 있었다. 결과적으로 쾌적성 있는 중년 여성의 brassiere를 개발하기 위해 도출된 소비자 요구는 종합적 착용 쾌적감, 맞음성-체형보정성, 움직임에 의한 브래지어의 위치 이동성, 압박감, 생리적 특성, 심미적 특성, 브래지어의 어깨끈 관련 특성 등 7가지로 나타났다. 이를 제품에 반영하기 위한 기술적 언어로는 3D측정 Data,소재의 물리적 특성, 심미적 특성, 생리적 측정치, 패턴, 압력 측정치 등으로 도출되었다.형 집단이 다른 두집단보다 더 활발한 불평행동을 취하는 것으로 나타났다. 따라서, 정보지향형과 브랜드지향형 집단의 경우에는 서비스회복의 만족도론 높혀주는데 주력하고, 가격지향형 집단의 경우에는 불평행동이 보다 적극적으로 취해질수 있도록 유도하는 마케팅 전략을 서비스 회복 전략과 함께 구사하는 것이 보다 효과적 일 것이라 생각된다.TEX>$53\%$의 상동성이 각각 존재하는 것으로 확인하였다.)을 가지고 있음이 확인되었다. 사람에 직접적인 유해성을 가지고 있는 지 확인하기 위해 사람 방광 유래의 T-24세포와 장내 표피 유래의 Caco-2세포에 대한 부착능을 시험하였을 때, 16균주$(42.1\%)$가 T-24방광 세포에, 그리고 17균주$(44.7\%)$가 Caco-2장세포에 대해 강한 부착능을 나타내었다. 특히 11균주$(28.9\%)$는 두 세포 모두에 강한 부착능을 가지고 있었다. Filter mating method를 수행하여 이들 균주들의 독소 생산 유전자와 항생제 내성 유전자가 사람에서 분리된 균주로 전달되는 것을 확인할 수 있었다. 본 실험의 결과는 설사 중상을 나타내는 돼지로부터 분리된 용혈성 E. coli의 독성과 세포 부착능력, 그리고 항생제 내성간의 상호 연관성을 보여주지 않았으나 동물 분리 세균의 항생제 내성과 독소 생산 능력이 유전자 전달을 통해서 뿐만 아니라 세균의 직접 접촉에 의해서도 인체로 전달될 수 있는 것을 보여주는 것이다.다. 본 연구를 토대로 장시간의 체외순환에서는 신장기능을 대표하는 수치들에도 영향을 미칠 수 있으리라 예상되며, 신장 이외에 다른 주요 장기에 미치는 영향에 대한 연구를 더

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.656-660
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• 2002

The fiber reinforced composite material is widely used in the multi-industrial field where the weight reduction of the infrastructure is demanded because of their high specific modulus and specific strength. Pressure vessels using this composite material in comparison with conventional metal vessels can be applied in the field where lightweight and the high pressure is demanded from the defense and aerospace industry to rocket motor case due to the merits which are energy curtailment by the weight reduction and decrease of explosive damage precede to the sudden explosion which is generated by the pressure leakage condition. In this paper, for nonlinear finite element analysis of E-glass/epoxy filament winding composite pressure vessel receiving an internal pressure, the standard interpretation model is developed by using the ANSYS 5.7.1, the general commercial program, which is verified as the accuracy and useful characteristic of the solution based on Auto LISP and ANSYS APDL. Both the preprocessor for doing exclusive analysis of filament winding composite pressure vessel and postprocessor that simplifies result of analysis have been developed to help the design engineers.

• 가정과삶의질연구
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• 제20권5호
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• pp.99-112
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• 2002

This study is aimed to investigate ethics cognition to information of youths who are main users of computers, but yet not built up the own ethics and the sense of value, as ethical problems are raised in information-oriented society. The research was focused on youths ethics cognition to information according to contact of multimedia pornography, surreptitious use of others and abusion of indecent languages in chatting. The survey was conducted to 520 students from middle and high schools in Jeju region and analyzed Probit Regression. The major results of this study are as follows; First, most of youths possess own-computers, and use Internet. Second, looking into experiencing or not according to sub-spheres of ethics cognition to information, the experience of contacting multimedia pornography was few. but the primary place of using it was a house. Most of youths approach multimedia pornography in awareness of a ban on youths' contact. The experience of surreptitious use of others was less than other spheres, and mainly only once. The number of youths who have an experience of abusing indecent languages was less than that of youths who don't have, but the frequency of was high when the youths have an experience. Third, the experience or no experience on each sub-sphere has a significant difference on personal-relative variables such as gender, age, education levels, number of siblings, academic records, personal expenses, relationship with friends. The experience or no experience on each sub-sphere has a meaningful influence upon family-relative variables such as father's education levels, Job, mother's age, education levels, employment, family type, monthly household expense. The experience or no experience on each sub-sphere has a meaningful influence upon PC-relative variables such as deviation experience in PC rooms, the experience of request for age confirmation(I.D. card), average use hour of PC rooms. The experience or no experience on each sub-sphere has a more meaningful influence on personal-relative variables and PC-relative variables than family-relative variables.

• 한국산학기술학회논문지
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• 제14권6호
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• pp.2727-2734
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• 2013

본 연구의 목적은 어머니의 영아에 대한 애착과 양육효능감이 영아-어머니의 상호작용에 미치는 영향을 알아보는 것이다. 이를 위해 전라북도 G시의 어린이집 영아와 영아의 어머니 180명을 대상으로 연구를 실시하였다. 연구결과는 첫째, 어머니의 영아에 대한 애착, 양육효능감, 영아-어머니 상호작용은 보통이상으로 나타났다. 둘째, 어머니의 영아에 대한 애착과 영아-어머니 상호작용은 정적상관이 나타났다. 특히 민감한 반응과 정적상관이 가장 높게 나타났다. 반면 냉담은 영아-어머니 상호작용 전체와 부적상관이 나타났다. 셋째, 어머니의 양육효능감과 영아-어머니 상호작용은 정적상관이 나타났으며 특히 민감한 반응과 정적상관이 가장 높게 나타났다. 의사소통, 전반적 양육효능감은 민감한 반응과 정적상관이 존재하였다. 교육과 통제는 양육자의 언어적 모델링과, 정적상관이 가장 높게 나타났다. 넷째, 영아-어머니 상호작용에 미치는 요인은 어머니 양육효능감의 의사소통, 통제, 전반적 양육효능감이었으며, 어머니의 영아에 대한 애착에서는 접촉추구, 결속이 정적인 영향을 미치는 것으로 나타났다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 추계학술대회 논문집
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• pp.933-937
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• 2002

The fiber reinforced composite material is widely used in the multi-industrial field where the weight reduction of the infrastructure is demanded because of their high specific modulus and specific strength. Pressure vessels using this composite material in comparison with conventional metal vessels can be applied in the field where lightweight and the high pressure are demanded from the defense and aerospace industry to rocket motor case due to the merits which are energy cutdown the weight reduction and decrease of explosive damage preceding to the sudden explosion which is generated by the pressure leakage condition). In this paper, for nonlinear finite element analysis of E-glass/epoxy filament winding composite pressure vessel receiving an internal pressure, the standard interpretation model is developed by using the ANSYS, general commercial software, which is verified as the accuracy and useful characteristic of the solution based on Auto LISP and ANSYS APDL. Both the preprocessor for doing exclusive analysis of filament winding composite pressure vessel and postprocessor that simplifies result of analysis have been developed to help the design engineers.

• 한국산학기술학회논문지
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• 제15권8호
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• pp.5116-5123
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• 2014

이 연구에서는 일개 광역시 지역주민을 대상으로 하여 뇌졸중의 조기증상에 대한 인식도와 관련요인를 파악함으로써 향후 뇌졸중 조기 증상에 대한 인식도를 향상시킬 수 있는 교육 및 홍보 전략의 근거를 마련하고자 하였다. 연구 대상자는 일개 광역시에 거주하는 성인 585명이었으며, 전화조사를 통하여 대상자의 인구학적 특성과 뇌졸중 조기증상에 대한 인식도를 조사하였다. 조사 결과 '언어, 발음장애(84.6%)', '편마비(73.9%)' 등에 대한 인식도는 상대적으로 높은 반면, '몸의 균형장애(67.0%)', '시야장애(55.4%)', '심한 두통(51.3%)'에 대한 인식도는 낮은 편이었다. 선형회귀분석 결과 남성, 젊은 연령층, 가족력이 없을 때, 이웃의 뇌졸중 진단 경험이 없을 때, 학력이 낮을 때, 홍보물 접촉 경험이 없을 때 뇌졸중 조기증상에 대한 인식도가 낮았다. 뇌졸중 조기증상에 관한 인식도가 낮은 집단에 대하여 집단별 맞춤형 프로그램을 제공함으로써 홍보 및 교육의 효율성을 높일 수 있을 것이다.