• 산업기술연구
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• 제26권B호
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• pp.157-162
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• 2006

Recently, the humidity adjustment of indoor air is of great importance in air conditioning system as a applied, in buildings, vehicles, and containers for storage and transport of perishable products. Membrane dehumidification or air is potentially attractive because it offers low capital and operating costs, along with low energy consumption. And membrane dehumidification process attracted the attention of the public instead of the other dehumidification processes, such as adsorption, absorption, and refrigeration cycles and so on. In this study, the prepared hydrophilic inorganic membrane-based dehumidifiers(membrane air dehumidification) examined the performance of dehumidification. The surface-modified inorganic membrane prepared in this study showed high dehumidification efficiency(over 80%). The membrane might be very useful for dehumidification industries.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.1
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• pp.412-415
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• 2003

[ $Si_3N_4$ ] thin film is the good material to fabricate the capacitors at MMIC processes. Normally, $Si_3N_4$ thin films is used to dielectric in the MIM capacitor and film thickness is $2000\;{\AA}$. Insulator(or dielectric) was deposited by PECVD at our MIM structure with air bridge which connect between top metal and contact pad. We optimized PECVD process to fabricate the good capacitors which can be applied at the true MMIC. The thickness of our $Si_3N_4$ thin films was $1000\;{\AA}$ shallower than $2000\;{\AA}$, and their breakdown voltages were above 70V.

• 대한수의학회지
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• 제52권3호
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• pp.209-211
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• 2012

A 5-year-old castrated male Shih-tzu dog and a 9-year-old intact female Schnauzer dog were presented with anorexia and depression. These 2 dogs were diagnosed based on which criteria as primary immune-mediated hemolytic anemia (IMHA). Blood examination showed anemia, spherocytosis, auto-agglutination and total bilirubinemia in 2 cases. These dogs were recovered by treatment of mycophenolate mofetil and prednisolone, and showed good prognosis until now. Mycophenolate mofetil is recommended as initial treatment in canine IMHA.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2007년도 제28회 춘계학술대회논문집
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• pp.175-178
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• 2007

The mode transition from cone-jet to dripping in colloid thruster operation has been analytically investigated. The transition has been predicted by the dynamic behavior of a liquid drop at the tip of the cone-jet. Conservation laws are applied to determine the upward motion of the drop, and an instability model of electrified jets is used to determine the jet breakup. Finally, for the first time, the analysis enables prediction of the transition in terms of the Weber number and electric Bond number. The predictions are in good agreement with experimental data.

• 대한수의학회지
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• 제54권1호
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• pp.53-54
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• 2014

This study was conducted to determine the serum cardiac troponin I (cTnI) concentrations in clinically normal (uninfected) Korean Jindo dogs and those infected with Dirofilaria (D.) immitis. Forty Korean Jindo dogs (22 females, 18 males) were obtained from two kennels in the Boryeong area of Chungnam Province and the Daejeon area, Korea. Significantly higher cTnI concentrations were observed in D. immitis-infected dogs than clinically normal dogs. cTnI testing in addition to thoracic radiography, echocardiography, and electrocardiography shows promise as an additional method for diagnosis of heartworm infection.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.868-873
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• 2004

Recently, The surface-wave method has widely been used for the site investigation due to the economic advantage and the improved reliability. The typical surface-wave methods currently available are SASW method, MASW method and CSW method. The CSW method has a potential of high-quality measurement, but its inherent problems limited its use to the special cases such as the compaction-quality control. The CSW method uses the steady-state harmonic vibration for the seismic source as in the steady-state Rayleigh-wave method, which is superior to the impact source used for other methods. This study proposed a new procedure to solve the inherent problems of the CSW method and to improve the reliability of the CSW measurements. To verify the validity of the proposed in this study, the SASW results were compared with the CSW results for the numerical simulation of the CSW testing. Also, the feasibility of the proposed method was verified using the field measurements at a geotechnical site.

• 산업기술연구
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• 제32권A호
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• pp.21-27
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• 2012

The characteristics of floc formation of the iron(Fe) ions contained in the acid mine drainage was studied for developing the process treating the acid mine drainage. The iron(Fe) ions were formed into flocs by the acid-base reaction with the added $Ca(OH)_2$. The molal ratio of iron(Fe) vs $Ca(OH)_2$ was one of major control variables in treatment; pH change, iron(Fe) ions concentration in treated drainage, DO (dissolved oxygen content). In addition, the air gave much effect on the color of the $iron(Fe)-Ca(OH)_2$ flocs and the attachment to magnet. The attaching to the magnet of the flocs formed in the air was much less than the case without air.

• Bulletin of the Korean Chemical Society
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• 제30권8호
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• pp.1701-1702
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• 2009

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2014년도 제50차 하계학술대회논문집 22권2호
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• pp.417-418
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• 2014

본 논문에서는 무선 바이오센서 기반에서 동물 생체측정 정보를 이용한 질병 예방 감시 시스템을 설계하였다. 제안 시스템은 바이오센서를 이용하여 동물의 심박, 호흡수, 운동량을 측정할 수 있는 모듈을 개발하고 생체 신호를 계측하여 신호 처리된 정보를 Zigbee 무선 통신모듈을 이용하여 원격 데이터베이스에 전송하도록 설계하였다. 모니터링 시스템에서는 수집된 생체 정보의 연속적인 변화를 통하여 가축의 이상여부를 판단하고 질병 발생여부를 조기에 발견할 수 있게 가축의 상태정보를 제공한다. 본 연구결과는 향후 축산 농가의 질병 감시를 통하여 질병의 확산을 차단할 수 있는 긴급대처시스템을 구축하는데 활용 될 것이다.

• 산업기술연구
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• 제31권A호
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• pp.59-62
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• 2011

The demineralizing effect of chelating agents(Maleic acid solution, EDTA salts solutions; disodium-, trisodium- and tetrasodium-EDTA) on hydroxyapatite(HA) for the root canal dentin treatment was investigated. Dissolution of Ca from HA was increased with increasing immersion time in chelating solutions. Among the EDTA salts solutions, tetrasodium-EDTA was least effective in dissolving Ca out from HA, and trisodium-EDTA was the most effective. Trisodium-EDTA solutionmight be more effective in removing the smear layer compared to tetrasodium-EDTA solution.