• 분석과학
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• 제14권1호
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• pp.21-27
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• 2001

본 실험에서는 유도결합 플라스마 원자방출 분광법 (ICP-AES)에서 perfluoroalkoxy (PFA) nebulizer와 microconcentric nebulizer (MCN)을 이용하여 본 실험실에서 제작된 double membrane desolvator (DMD)의 분석능력을 연구하였다. MCN과 비교하여 PFA nubulizer는 수용액 시료의 경우에는 DMD-ICP-AES에서 비슷한 분석감도를 보였으나, isopropyl alcohol 시료에서는 좀 더 나은 분석감도를 보였다. PFA nebulizer는 여러 가지 산들에 견디기 때문에 HCI, $H_2SO_4$ 뿐만 아니라 HF 용액도 도입하여 분석할 수 있었는데, 모두 2% 미만의 상대표준편차로 분석되었다. 기억효과를 측정한 결과, 신호가 1% 미만으로 감소되는 rinse-out time은 PFA에서는 35초인 반면 MCN은 45초로 얻어졌다.

• 대한의용생체공학회:의공학회지
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• 제30권5호
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• pp.438-443
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• 2009

Nebulizer is designed to atomize medicinal fluid for patient with small particles(0.5-$5{\mu}m$) and also able to deliver particles from devices to the lungs when patient inhales air. Several particle size measurements are currently used to size aerosol particles. The most commonly used test is the cascade impactor method in as a standard. But, other methods for comparative particle size distribution data such as the particle size range and reproducibility are acceptable. Therefore, in this study a new test methode is suggested for nonventilatory nebulizer evaluation equipment.

• Journal of Korean Biological Nursing Science
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• 제22권3호
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• pp.204-212
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• 2020

Purpose: The purpose of this study was to examine the effect of nebulizer therapy with normal saline on thirst and sore throat among postoperative patients. Methods: A quasi-experimental nonequivalent control group, pretest-posttest design was used with 50 participants. The experimental group received nebulizer therapy with normal saline every two hours for 10 minutes three times and wet gauze (n= 25), and the control group received only wet gauze (n= 25). Data were collected using the Numeral Rating Scale for Thirst and Sore Throat. Measurements were calculated before applying nebulizer therapy and total five times for 12 hours after treatment. Data were analyzed using the repeated measured ANOVA. Results: Thirst for the experimental group using the nebulizer therapy with normal saline improved more than for the control group (F= 3.06, p= .043). Sore throat was not significantly different between the two groups (F= 0.63, p= .565). Conclusion: Study results indicate that using nebulizer therapy with normal saline can reduced thirst for postoperative patients. So nurses can apply nebulizer therapy with normal saline to reduce thirst and to improve comfort for postoperative patients.

• 부모자녀건강학회지
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• 제22권1호
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• pp.1-9
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• 2019

Purpose: The purpose of this study is to develop educational material for parents of hospitalized preschool children who receive nebulizer therapy treatment. The educational material is aimed at providing information on the correct use of nebulizer. Methods: The development of educational material was based on the ADDIE model and consists of an A4-sized leaflet and a video. Results: The leaflet included basic information, procedures, and cautionary information for nebulizer therapy, as well as frequently asked questions. The one minute and fifty second video is accessed via QR code and provides step-by-step instruction on nebulizer therapy. Conclusion: This study recommends that the educational leaflet and video developed for nebulizer therapy use be provided to parents of preschool children hospitalized in the pediatric ward.

• Bulletin of the Korean Chemical Society
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• 제20권11호
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• pp.1277-1280
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• 1999

An inexpensive ultrasonic nebulizer (USN) was developed utilizing a home humidifier. The ultrasonic transducer was taken from a commercial USN and the power supply was from a humidifier. Sample was continuously fed into the nebulizer and the detection limit was improved 3-20 times over a pneumatic nebulizer. Undesirably, noise in signal was also increased several times. 0.5 ppm of Mn was used as an internal reference and the "long-term" drift could be successfully corrected. Since the noise contained high and low frequency components, both could be effectively removed only by the real-time correction method such as the Myer-Tracy method, where the reference line was simultaneously monitored with the analytical lines. The performance of USN was tested with NIST SRMs and showed good agreement with the certified values.

• 조명전기설비학회논문지
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• 제16권3호
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• pp.55-60
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• 2002

우리나라에서 판매되고 있는 가정용 네블라이져는 2.5[kg/$\textrm{cm}^2$]의 피스톤방식의 컴프레셔를 사웅하여 소음이 클 뿐 아니라 효율면에서 문제점을 가지고 있다. 이러한 것들을 개선하기 위해서 0.6[kg/$\textrm{cm}^2$]의 다이아후렘방식의 모터를 사용하여 적은 소음과 적은출력으로 비슷한 효과를 가져오게 하였으며, 네블라이져의 핵심인 노즐부분에서 충돌부의 충돌단면적 을 넓게 하였고 V형의 경사를 주는 등 설계상의 변화를 주어 약액이 더 미세하게 깨어지도록 하여 치료효과를 높이는 결과를 얻었다.

• 분석과학
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• 제15권2호
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• pp.120-126
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• 2002

유도결합 플라스마 질량분석기(ICP-MS)와 유도결합 플라스마 원자방출분광기 (ICP-AES)를 이용하여 상업적으로 유통되고 있는 4 종의 분무기(Meinhard, ESI PFA, Cross-flow, Babington)와 한국표준과학연구원(KRISS)에서 직접 제작한 분무기인 KRISS Inert 분무기와 KRISS conespray 분무기의 성능을 평가하였다. 각 분무기의 압력, 시료주입량의 변화에 따른 시료주입 효율을 조사하였으며 ICP-MS와 ICP-AES에 연결하였을 때 시료주입량의 변화에 따른 감도, 안정성, 바탕선 세기, 산화물과 수소화물의 생성 비율을 조사하였다. 시료의 종류, 시료 양의 제한성, 분석기기의 종류, 분석 원소에 따라 가장 적합한 분무기를 선택해야 높은 감도, 낮은 바탕값, 안정한 신호세기 등의 좋은 분석결과를 얻을 수 있음을 알 수 있었다.

• Progress in Superconductivity
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• 제7권1호
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• pp.52-57
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• 2005

[ $YBa_{2}Cu_{3}O_y$ ] superconducting films were prepared on $LaAlO_3$(100) single crystal substrate by spray pyrolysis method. The precursor solution was prepared by dissolving nitrate powders in de-ionized water. Both of ultrasonic and concentric nebulizers were used in order to generate fine droplets of precursor solution. C-axis oriented films were obtained at deposition temperature of $750\~850^{\circ}C$ and working pressure of 100 Torr and 500 Torr. In case of ultrasonic nebulizer, films showed rough and porous surface morphology due to formation of enormous droplets, while smooth and dense films were obtained for concentric nebulizer. A transport $J_c$ value of $0.43\;MA/cm^2$ at 77 K and self field was achieved on $LaAlO_3$(100) single crystal substrate.

• 기본간호학회지
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• 제10권1호
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• pp.96-107
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• 2003

Objective: The purpose of this study was to identify the effects of tracheal suction and the effects of different methods of bronchodilator inhalation (Ultrasonic nebulizer: MDI puff, MDI puff with spacer) in VSD surgery patients. Material & Method: From June 2001 to March 2002, sixty consecutive patients were randomly assigned to a control group (n= 15), ultrasonic nebulizer group (n=15), metered dose inhalation (MDI) puff group (n=15) and MDI with spacer group (n=15). Vital signs (HR, BP, CVP), ABGA and pulmonary functions were measured before suction (baseline for suction), after suction, 15 minutes after suction (base of bronchodilator inhalation), 30 minutes after bronchodilator inhalation, and 2 hours after bronchodilator inhalation. Stastistical analysis was performed using SPSS software. Repeated measure ANOVA was used to examine the effects of tracheal suction. One way ANOVA with Bonferroni's correction and multiple range test (the least significant difference test) were used to examine the effects of albuterol inhalation. Result: 1. Heart .ate increased significantly immediately after suction (p<.01) and recovered 15 minutes after suction. 2. $PaO_2$ and PH decreased significantly immediately after suction (p<.05) and $PaO_2$ recovered 15 minutes after suction. $PaCO_2$ increased immediately after suction and significantly 15 minutes after suction (p<.01). But changes in vital signs and ABGA were within the normal range. 3. Tidal volume decreased significantly 15 minutes after suction (p<.05). 4. Changes of HR and tidal volume were greater in the nebuizer group compared to the other groups (p<.05) 30 minutes after bronchodilator inhalation and recovered 2 hours after bronchodilator inhalation. 5. Changes of airway deadspace was greater in the nebulizer group compared to the control group and MDI puff group 30 minutes after albuterol inhalation (p<.05) and at 2 hours (p<.01). Conclusion: Tracheal suction did not have significant effect on vital signs and pulmonary functions after OHS. Although the methods of bronchodilator inhalation did not showed any significant difference on pulmonary function, the nebulizer method increased $PaO_2$ (20%) and tidal volume transiently. If the patient needs bronchodilator inhalation with bronchospasm after OHS, the nebulizer method is the best choice. More study on the effects of bronchodilator inhalation in bronchospasm group is needed.

• 자원환경지질
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• 제29권1호
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• pp.21-24
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• 1996

Inductively coupled plasma atomic emission spectrophotometer (ICP/AES) is a versatile modern instruments for the multi-element analysis, but quantitative analysis using ICP/AES with normal pneumatic nebulizer is not applicable for the measurement of elemental concentrations in water down to the drinkining water standard level except a few elements because of poor detection limits. However, the detection limit can be lowered enough to measure drinking water standard, if ultrasonic nebulizer and/or hydride vapor generator is attached. This method is tested with groundwater samples from Tajeon area. It is confirmed that the elemental concentrations in these samples are within the limit of drinking water standard for the most elements. However, uranium concentration is very high in some samples compared with the concentrations suggested by Environmental Protection Agency of U.S.A. There is no standard concentration level to this element in Korea and it should be prepared immediately.