• 제목/요약/키워드: Improved Treatment

검색결과 9,018건 처리시간 0.04초

분산법이 무전해 Ni-CNT 복합도금막 형성에 미치는 영향 (Effect of Dispersion Method on Formation of Electroless Ni-CNT Coatings)

  • 배규식
    • 반도체디스플레이기술학회지
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    • 제13권3호
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    • pp.51-55
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    • 2014
  • Ni-CNT(Carbon Nanotubes) composite coating is often used for the surface treatment of mechanical/electronic devices to improve the properties of the Ni coating. For the Ni-CNT coating, the dispersion of CNT fibers is a critical process. In this study, ultrasonic treatment instead of the conventional ball milling was attempted as a dispersion method for the electroless Ni-CNT coating. SEM-EDX analysis was performed and contact angle, sheet resistance, and micro-hardness were measured. Results showed that the ultrasonic treatment was comparable to the ball milling, as a dispersion method, but the difference was negligible. However, combined ball milling and ultrasonic treatment(double treatment) showed much improved micro-hardness value, above 350Hv(close to the value obtained by the Ni-CNT electroplating). In addition, electroless Ni-CNT(double-treated) coatings formed on the thin Ni film deposited by the electroless plating(double coating) showed better mechanical properties. Thus, double treatment and double coating are suggested as an improved electroless Ni-CNT coating method.

울트라캐패시터용 RuO2/MWNT 복합 전극재료의 용량개선을 위한 산처리 및 열처리 효과 비교 (Comparison between Acid and Heat Treatment for Capacity Enhancement of RuO2/MWNT Composite Electrode Materials for Ultracapacitor)

  • 김용태
    • 한국전기전자재료학회논문지
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    • 제23권1호
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    • pp.65-69
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    • 2010
  • In this study, we compared two methods(an acid treatment in strong acid reflux and a heat treatment in air atmosphere) for hydrophilic surface treatment of multi-walled carbon nanotubes(MWNT) to enhance the capcity of $RuO_2$/MWNT composite electrode materials for ultracapacitor. Both treatments generated a number of defects on the surface of MWNT by the breakage of $\pi$ bond in graphene layer at which carboxyl groups were introduced. However, the degree of hydrophilicity generated by strong acid treatment was higher than that by heat treatment in air, which was revealed by the quantitative measurement of surface carboxyl groups by using Boehm titration. The increased hydrophilicity save rise to an improved dispersity of $RuO_2$ nanoparticles on MWNT. Finally, the improved dispersity resulted in the capacity enhancement of composite electrode materials for ultracapacitor.

셀룰라아제 처리시 실리콘 첨가에 따른 레이온/면 혼방직물의 물성변화 (The Change of the Physical Properties of Rayon/Cotton Blend Fabrics Treated with Cellulase by Addition of Silicon)

  • 이선화;송화순
    • 한국의류학회지
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    • 제22권8호
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    • pp.1032-1042
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    • 1998
  • The purpose of this study is to measure, compare, and investigate the physical properties of rayon/cotton blend fabrics treated with cellulase and cellulase & specific degeneration silicon and to present basic data which is in development a value-added fabric. The results are as follows. The condition for the treatment of cellulase was at 55$^{\circ}C$, pH 4 and the weight loss increased as the concentration of cellulase and the treated time increased. On treatment with cellulase, the crossectional view & longitudinal view of fiber noticed remarkable crack as weight loss increased and tensile strength and elongation decreased, and pilling was enhanced remarkably. KOSHI was increased, NUMERI and FUKURAMI were decreased as weight loss increased. In the basic characteristic value of clothing wearning, shape stability and drapability were decreased, but air content was improved. On treatment with cellulase & silicon, the degree of damage in the crossectional view & longitudinal view of the fiber reduced. Tensile strength, elongation, moisture regain improved. KOSHI and FUKURAMI were reduced, NUMERI was improved rather than when it was treated with cellulase. Therefore handle was improved. In the basic characteristic value of the clothing wearing, shape stability, air content, drapability were improved.

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악관절 폐구성 과두걸림 환자의 하악운동에 관한 연구 -치료전후의 하악운동 범위 및 양상 - (A Study on the Mandibular Movements in the Patients with TMJ Lock Closed -Range and pattern of mandibulr movement-)

  • Sung-Chang Chung;Hyung-Suk Kim
    • Journal of Oral Medicine and Pain
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    • 제16권1호
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    • pp.113-120
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    • 1991
  • The authors examined the patterns and various ranges of mandibular movements in TMJ lock closed patients in the frontal, sagittal and horizontal plane pre-end post-treatment. And the author obtained the following results. 1. In the frontal plane, the patterns and ranges of mandibular movement of the patients were very irregular and small before treatment. But after the treatment, the patterns were similar to the typical shield shape of the normal subjects. And the velocity of opening and closing was improved after the treatment. 2. In the sagittal plane, the mean amount of maximum mouth opening was 27.0±4.0mm before treatment and 44.0±5.4mm after treatment. And there was statistically significant improvement(p<0.005). The patterns of the movement were very irregular and small before treatment, but were similar to the shape of "Posselt's envelope of motion" after the treatment. The velocity of opening and closing was improved after the treatment 3. In the horizontal plane, the mean amount of maximum laterotrusion was 8l2±2.5mm in the affected side and 6.7±2.2mm in the non-affected side before treatment. There was a significant difference between the sides(p<0.05). After the treatment, the mean was 10.4±2.6mm in the affected side and 8.9±2.3mm in the non-affected side and there was no significant difference between the sides(p>0.05). There was no significant difference in the mean amount of maximum protrusion between the before and aftertreatment(p>0.05), but the patterns of the movements were improved.

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전신마취 또는 정주진정 하 치과치료가 소아 환자의 구강 건강과 관련된 삶의 질에 미치는 영향 (Impact of Dental Treatment under General Anesthesia or Intravenous Sedation on Oral Health-related Quality of Life in Pediatric Dental Patients)

  • 송지수;김영재
    • 대한소아치과학회지
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    • 제43권1호
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    • pp.27-35
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    • 2016
  • 본 연구는 전신마취 또는 정주진정 하 치과치료가 주 양육자가 인식하는 환아의 구강 건강과 관련된 삶의 질과 환아 가족의 일상생활에 미치는 영향을 확인하기 위해 시행되었다. 10세 이하의 건강한 환아와 그 환아의 주 양육자를 대상으로 연구가 진행되었다. 환아가 전신마취 또는 정주진정 하 치과치료를 위해 내원한 당일, 치료 시작 전에 환아의 주 양육자가 설문지를 작성하고, 치료 후 6개월 이내에 동일한 주 양육자가 동일한 설문지를 다시 작성하였다. 총 43명의 환아가 연구 대상에 포함되었으며, Child Oral Health Impact Profile(COHIP)과 Family Impact Scale(FIS)의 대한민국 버전이 설문에 사용되었다. COHIP과 FIS 점수 모두 술 전에 비하여 술 후에 개선되었다. 성별은 COHIP 및 FIS 점수의 개선에 별다른 영향을 주지 않았으며, 연령은 COHIP 점수의 개선에 영향을 주지 않았다. 그러나 어린 환아의 경우 술 전 FIS 점수가 더 양호한 것으로 나타났다. 치수치료를 한 경우에는 COHIP 점수가 더 크게 개선되었으며, 구치부 기성금속관 수복을 한 경우에는 FIS 점수의 개선 정도가 적었다. 전치부 심미수복 여부와 전치부 조기 발거 여부는 COHIP 및 FIS 점수의 개선 정도에 영향을 주지 않았다. 결론적으로, 전신마취 또는 정주진정 하 치과치료는 주 양육자가 인식하는 환아의 구강 건강과 관련된 삶의 질을 개선시킨다.

감수말 공하법을 병행한 한방치료로 호전된 요추 척추관 협착증 환자의 증례보고 (A Case Report of Lumbar Spinal Stenosis Improved with Diarrhea-Inducing Treatment by Gamsui-mal and Korean Medicine Treatment)

  • 남수현;김동후;최현민;강준혁;현민경
    • 한방재활의학과학회지
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    • 제27권1호
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    • pp.67-75
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    • 2017
  • The purpose of this study is to report the effectiveness of diarrhea-inducing treatment by Gamsui-mal for lumbar spinal stenosis. During hospitalization four patients with lumbar spinal stenosis were treated with diarrhea-inducing treatment by Gamsui-mal and acupuncture, herbal medicine, moxibustion, cupping treatment, Bee-venom pharmacopuncture. Before treatment, we explained in detail about diarrhea-inducing treatment by Gamsui-mal and patients agreed with treatment. The symptoms appeared in patients of diarrhea, abdominal pain, and vomiting in the treatment process. We evaluated the degree of improvement by visual analogue scale (VAS), oswestry disability index (ODI). After treatment, we found that pain was reduced and patient's symptoms were improved by visual analogue scale (VAS), oswestry disability index (ODI) score. The results show that diarrhea-inducing treatment by Gamsui-mal was rapidly improving symptoms. Further studies are needed to clarify the effect of diarrhea-inducing treatment by Gamsui-mal.

한방치료와 호흡명상으로 호전된 불면 및 우울증을 동반한 불안 장애 환자 치험 1례 (Clinical Report of One Case with Insomnia, Depression and Anxiety Disorder Improved by Traditional Korean Medical Treatment and Breathing Meditation)

  • 오경민;김보경
    • 동의신경정신과학회지
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    • 제20권3호
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    • pp.297-307
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    • 2009
  • Objectives : Insomnia, depression and anxiety disorder are widespread in elderly patients. Mood disorder and insomnia share complex theoretical and clinical relationships. We investigated if traditional Korean medical treatment and breathing meditation are effective in patient with insomnia, depression and anxiety disorder. Methods : We treated one patient with traditional Korean medical treatment such as accupuncture, herb-medication, moxa and breathing meditation Results : After Treatment, the chief complaint and accompanying symptoms were improved, and the score of BAI, SADS, BDI, PSQI, IQ were decresed. Conclusions : According to this study traditional Korean medical treatment is effective for the cure of insomnia, depression and anxiety disorder and breathing meditation forifies the traditional Korean medical treatment.

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문화예술치유프로그램이 여성 노인의 지역공동체의식에 미치는 영향 (The Effects of a Culture & Arts Treatment Program for Elderly Women for Regional Community Consciousness)

  • 이동주;이드보라
    • 한국멀티미디어학회논문지
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    • 제23권2호
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    • pp.383-393
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    • 2020
  • This research demonstrates the effects of a culture & arts treatment program for elderly women's regional community consciousness. Study subjects of this research are 18 women whose ages are 65 years old and older. (8 women participated in a culture & arts program and 10 women participated in an elderly center program.) The culture & arts program held 16 sessions where the subjects wrote letters or drew pictures. After this program, we measured the degree of regional community consciousness. The results of the study were, first, that the cultural and arts treatment program improved the regional community consciousness among the elderly woman. Second, the treatment program has improved the sub-region of the regional community consciousness among the woman's elderly. This result shows the culture & arts treatment program can be used as an effective way to enhance the consciousness of the regional community on elderly women

한방치료(韓方治療)와 정신요법(精神療法)으로 호전된 갱년기 장애를 동반한 우울증 환자 치험 2례 (A Clinical Report of Two Patients with Depression and Menopausal Symptoms Improved by Korean Traditional Treatment and Psychotherapy)

  • 강현선;이진환;김진이;성우용
    • 동의신경정신과학회지
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    • 제20권2호
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    • pp.177-186
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    • 2009
  • Objectives : We investigated if korean traditional treatment and psychotherapy is effective in patients with depression and menopausal symptoms. Methods : We treated two patients with typical korean traditional medical treatment( Acupuncture, Giungoroen therapy(至言高論療法), Moxibustion ) and progressive muscle relaxation. Results : After treatment, the chief complaint and accompanying symptoms were subsided and improved. BDI score and Kupperman's index were decreased. Conclusions : We may conclude that korean traditional treatment and psychotherapy is effective in patients with depression and menopausal symptoms.

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갓 추출물의 견직물에 대한 염색성 (The Dyeing Properties of Silk Fabric of Leaf Mustard (Brassica Juncea) Extract)

  • 이영숙;장정대
    • 한국의류산업학회지
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    • 제5권4호
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    • pp.389-394
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    • 2003
  • Dyeing properties of silk fabric with leaf Mustard was investigated the relation with pH variation, mordants, mordant method. K/S value shows the following sequence: pH 3>pH 5>pH 7>pH 9. K/S value shows high in post mordant conditions. Silk fabric shows the green, blue tone according to mordants(Al, Cu, Fe mordants). The tannic acid treatment silk fabric shows higher than the nontannic acid treatment silk fabric in K/S value. Lighting fastness of tannic acid treatment silk fabric shows better than that of nontannic acid treatment in Cu, Fe mordants. Water fastness of tannic acid treatment silk fabric was wholly improved. Tannic acid treatment improved dyeing properties of silk fabric with leaf Mustard.