• 공업화학
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• 제16권4호
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• pp.570-575
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• 2005

하수방류수 살균 소독에 이용되는 UV 램프를 기존의 전극용보다 효율을 높이고 수명이 긴 무 전극 UV 램프를 제작하고 그 성능을 알아보았다. 우선 활성물질을 변화시키면서 제조한 램프의 UV 강도 및 온도의 변화를 실험 하였다. 그 결과 활성물질이 Hg/In의 무게비 95/5로 만든 램프를 250 min간 운전한 결과 UV 강도 $300{\mu}W/cm^2$ 및 온도 $200{\sim}250^{\circ}C$로 가장 안정적인 결과를 나타내었다. 그러나 무전극 램프를 장시간 발광시켰을 경우 램프의 온도가 상승하기 때문에 이를 방지하기 위해 실제 하수처리공정에 적용할 수 있는 냉각이 가능한 이중관 형태로 제작하여 UV 강도와 온도 변화특성을 알아보았다. 또한 제작된 무전극 UV lamp를 하수 방류수의 살균 소독을 위하여 대장균(E-coli.)으로 실험한 결과에서도 99.9% 이상의 살균효율을 보였다.

• 대한안전경영과학회지
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• 제12권4호
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• pp.41-51
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• 2010

This paper describes the development of various lighting equipment adapting Ultra Constant Discharge Lamp that has newly been on commercial supply in the market. Meeting the required conditions of lighting equipment, various types of UCD Lamp equipment with excellent performances could be successfully developed. In order to provide a guideline for the economical lighting product selection, the analyzed data comparison between Hi-pressure Sodium Lamp which has been the most popular lamp for street lighting and UCD Lamp is provided. The conclusions of the study are made as follows; (1) The performance measurement result of UCD Lamp shows excellent Luminous Efficacy as 108Lm/W, daylight-like Color Rendering Index as 90Ra, and the best operating temperature range as $-50^{\circ}C{\sim}+85^{\circ}C$. Comparing to the Hi-pressure Sodium Lamp, UCD could be evaluated as much superior products. (2) In an assembled status with the lighting fixture (Type STB형-60W), UCD Lamp was tested OK for one hour duration at the temperature range form $-50^{\circ}C$ to $+85^{\circ}C$ and the humidity of 98%. The operation at the extremely low temperature can be an excellent feature to enable the export to the cold temperature regions such as Northern Europe and Russia and the specific applications for defense systems and special industry. (3) As UCD Lamp is a genuine Korea made product following Energy-saving and Eco-friendly policy, it should be appreciated as one of the best $CO^2$ reduction Green product.

• Journal of Microbiology and Biotechnology
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• 제31권12호
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• pp.1672-1683
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• 2021

Vibrio parahaemolyticus is recognized as one of the most important foodborne pathogens responsible for gastroenteritis in humans. The bla_CARB-17 gene is an intrinsic β-lactamase gene and a novel species-specific genetic marker of V. parahaemolyticus. In this study, a loop-mediated isothermal amplification (LAMP) assay combined with a lateral flow dipstick (LFD) was developed targeting this bla_CARB-17 gene. The specificity of LAMP-LFD was ascertained by detecting V. parahaemolyticus ATCC 17802 and seven other non-V. parahaemolyticus strains. Finally, the practicability of LAMP-LFD was confirmed by detection with V. parahaemolyticus-contaminated samples and natural food samples. The results showed that the optimized reaction parameters of LAMP are as follows: 2.4 mmol/l Mg²⁺, 0.96 mmol/l dNTPs, 4.8 U Bst DNA polymerase, and an 8:1 ratio of inner primer to outer primer, at 63℃ for 40 min. The optimized reaction time of the LFD assay is 60 min. Cross-reactivity analysis with the seven non-V. parahaemolyticus strains showed that LAMP-LFD was exclusively specific for V. parahaemolyticus. The detection limit of LAMP-LFD for V. parahaemolyticus genomic DNA was 2.1 × 10^-4 ng/μl, corresponding to 630 fg/reaction and displaying a sensitivity that is 100-fold higher than that of conventional PCR. LAMP-LFD in a spiking study revealed a detection limit of approximately 6 CFU/ml, which was similar with conventional PCR. The developed LAMP-LFD specifically identified the 10 V. parahaemolyticus isolates from 30 seafood samples, suggesting that this LAMP-LFD may be a suitable diagnostic method for detecting V. parahaemolyticus in aquatic foods.

• 한국안전학회지
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• 제28권2호
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• pp.31-36
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• 2013

For lighting of dark and hazardous workplace such as compartment of ships under construction, workers should use hand lamps of explosion-proof type. However, the heavy weight of such lamps has prevented most impatient workers from using such types of lamps extensively. In this paper, we developed a light weight hand lamp of intrinsic safety type which reduced the weight a lot while maintaining or improving the lighting and explosion-proof function. We made a prototype which consisted of lamp fixture and high frequency power supply. Testing results show that the hand lamp meets well all the explosion-proof testing requirements of the Korea Occupational Safety and Health Agency. And more, we surveyed the explosion protection technology of a light weight hand lamp, and suggested the advantage/disadvantage to apply lighting of hand lamp about economical aspect.

• 전기학회논문지P
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• 제56권3호
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• pp.148-154
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• 2007

In this paper, characteristics of ignition voltage and current by wire length of HID(High Intensity Discharge) lamp circuit are analyzed. In the construction field, decision of the wire thickness for HID lamp circuit has the problems, and these are presented. Through transmit parameters, equivalent model of the ballast and HID lamp circuit was derived. The graph of voltage reduction about length between the ballast and the lamp is shown. The simulation of proposed model and experimental results are presented in order to validate the proposed method. The proposed model and graph can use to choose the proper length of wire between the ballast and the lamp in the field.

• 한국인공지능학회지
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• 제4권1호
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• pp.1-3
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• 2016

These days, citizens are interested in the energy. IT technology needs to develop and to make use of energy effectively and to save energy. In this study, motion recognition LED lamp was used to have good energy efficiency and to be made of environment friendly material. The purpose of development of the lamp was to add motion recognition to LED lamp. In this study, infrared ray sensor's distance measurement was used to develop LED lamp. Most of the lamps were used under dark environment, so that infrared ray sensor was used to perceive movement under dark environment. And, LED lamp with good efficiency and less power consumption was used to increase efficiency. Citizens were interested in perception of the movement to distinguish from conventional type of the lamps.

• 조명전기설비학회논문지
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• 제25권7호
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• pp.1-8
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• 2011

The high efficiency tubular LED lamp has been developed. But, it occurs optical losses in consists of LED package, module, diffuser etc.. By Measuring the tubular LED lamp's luminous flux, we compared and analyzed about the effect of optical losses for each component and actually using measured luminous intensity distribution data, illuminance distribution was simulated by Relux. Optical losses are 24[%] from LED package to luminaire and the tubular LED lamp can be replaced with fluorescent lamp. In this paper, we could provide data for optimum lighting design by analyzing the optical characteristics for developing and propagating the tubular LED lamp.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1412-1414
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• 2006

We study on the Electro Optical Properties of the EEFL (External Electrode Fluorescent Lamp) Backlight system is based on the lamp type characteristics and diameter of the lamp tube under the equal manufacturing of the lamps. In this contribution, through the analysis of the different lamp type and diameter of the lamp tube gain the effective luminance and reduce the lamp voltage from aspect in the electro optical properties with EEFL and LCD backlight system.

• 한국산학기술학회논문지
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• 제8권3호
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• pp.477-482
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• 2007

본 논문은 램프의 벌브 형태 개선과 알루미늄 코팅에 의한 리플렉터 글로브의 적용으로 광을 집적하여 증가시키고, 레늄 필라멘트의 적용에 따른 장 수명과 크립톤 가스와 질소가스의 최적 주입 비율을 통한 60[W]급 Basking Neodymium Lamp 개발에 관한 것으로 이를 측광, 분석하였다. 개발결과 수명은 7,200시간, 광속은 620[1m]이며 색온도와 연색성 또한 우수한 것으로 나타나 농업용과 일반용 램프로써의 그 가능성을 확인하였다.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 1995년도 추계학술발표회논문집
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• pp.39-46
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• 1995

LCD. projector back light용 metal halide lamp는 최근 LCD의 고신장세에 편승 매년 30% 정도 수요가 증가하고있는 첨단제품으로 국내에서는 전량 수입에 의존하고 있는 실정이며 본 연구에서는 다음과 같은 기술 성과를 거두었다. 1. LCD projector back light용 150W metal halide lamp및 전자식 안정기의 국산화 완료 2. 초소형 metal halide lamp의 설계기술 및 제작 기반기술 확보 3. Metal halide lamp용 전자식 안정기의 설계기술 확보