• Title/Summary/Keyword: IL-17R

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Telemetering of the Underwater Noise (수중소음의 원격측정)

  • Sin, Hyeon-Ok;Sin, Hyeong-Il
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.23 no.1
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    • pp.11-17
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    • 1987
  • This paper describes an availability of the teltmeter device made as a trial to measure the under-water noise, and the results of the test. This telemeter device adopts FM-FM system, and its main carrier wave is 146.2MHz. The trans-mission power is about 1w, and the available distance of transmission is 2.5KM. The timer built in the telemeter device controls transmission time and pause time automatically by the R-C time-constant. The former is 30-32 seconds and the latter is 10-12 seconds. The underwater noise in the set net fishing ground and at the breeding tank was measured, and recorded simultaneously on land and at sea with the telemeter device. When the input voltages of the transmitter is 100-300mV, the value of telemetering ambient noise and bio-acoustic underwater noise well agreed with that of the direct measurement. And the teleme-tered underwater noise decreases in proportion the distance between the transmitter and receiver.

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A Study on Satisfaction Investigation and Current Status of Clinical Training Program for Healthcare-Affiliated Students Depends on University Hospital Availability (학교병원 유무에 따른 보건-의료계열 대학생의 임상실습 현황 및 만족도 조사)

  • Kim, Su-Jung;Kim, Byung-Kon;Park, Chang-Hee;Park, Su-Jong;Jeon, Geon-Il;Kim, Soon-Gu
    • The Korean Journal of Health Service Management
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    • v.6 no.1
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    • pp.195-203
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    • 2012
  • The purpose of this study was to identify clinical practice (clinical training education) and satisfaction depend on university hospital availability according to a survey with 850 healthcare-affiliated students. The collected data were analyzed with the SPSS17.0 program. The result was shown statistically significant difference depends on gender, major departments and satisfaction of college life. In addition, there were significant differences in satisfaction of clinical training education in the environmental aspects of practice depending on whether affiliated hospital or not. There were no significant correlation found between degree of satisfaction of clinical training education and the need for affiliated hospital (r = .204, p <.01). As a result, Attached to the university hospital can be helpful to healthcare-affiliated students on environmental and educational aspects of clinical training education. Therefore, the effective and practical training programs using university-affiliated hospitals are surely needed to develop and to apply the active support.

Analysis of Variations in Soil Heat Flux and Air Temperature by Net Radiation at a Mud Flat in Hampyeong Bay (함평만 갯벌에서 순복사에 의한 토양열 플럭스와 기온의 변동 분석)

  • Park, Ho-seon;Kwon, Byung Hyuk;Kim, Il-Kyu;So, Yoon Hwan;Oh, Se Bong;Kang, Dong-hwan
    • Journal of Environmental Science International
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    • v.26 no.9
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    • pp.1101-1110
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    • 2017
  • In this study, we analyze changes in soil heat flux and air temperature in August (summer) and January (winter) according to net radiation, at a mud flat in Hampyeong Bay. Net radiation was observed as $-84.2{\sim}696.2W/m^2$ in August and $-79.4{\sim}352.5W/m^2$ in January. Soil heat flux was observed as $-80.7{\sim}139.5Wm^{-2}$ in August and $-49.09{\sim}137W/m^2$ in January. Air temperature was observed as $24.2{\sim}32.9^{\circ}C$ in August and $-1.5{\sim}11.1^{\circ}C$ in January. The rate of soil heat flux for net radiation ($H_G/R_N$) was 0.17 in August and 0.34 in January. Because the seasonal fluctuation in net radiation was bigger than the soil heat flux, net radiation in August was bigger than in January. We estimated a linear regression function to analyze variations in soil heat flux and air temperature by net radiation. The linear regression function and coefficient of determination for the soil heat flux by net radiation was y=0.19x-7.94, 0.51 in August, and y=0.39x-11.69, 0.81 in January. The time lag of the soil heat flux by net radiation was estimated to be within ten minutes in August 2012 and January 2013. The time lag of air temperature by net radiation was estimated at 160 minutes in August, and 190 minutes in January.

Species Composition and Vertical Distribution of Marine Algal Communities at the Taean Peninsula of the West Coast of Korea (서해안 태안반도 해조군집의 종조성과 수직분포)

  • Ahn, Jung Kwan;Yoo, Kyong Dong;Oh, Ji Chul;Lee, Jae Il;Yoon, Hee Dong;Kim, Young Hwan
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.50 no.1
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    • pp.55-64
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    • 2017
  • Seasonal variability in algal community structure was examined at the intertidal zones of five study sites on the Taean Peninsula, on the western coast of Korea, from February 2014 to November 2015. A total of 118 species of marine algae, comprising 17 green, 24 brown and 77 red algae, were identified. The maximum number of species was observed at the Mohang site (75 species), and the minimum at the Yeonpo site (46 species). The seaweed biomass was $160.24g\;dry\;wt./m^2$ on average, and was maximal at Uihang ($519.04g\;dry\;wt./m^2$) and minimal at Yeonpo ($19.03g\;dry\;wt./m^2$). Based on biomass, the dominant seaweeds at Taean peninsula were Sargassum thunbergii and Corallina pilulifera. Community indices were as follows: richness index (R), 3.21-5.01; evenness index (J'), 0.33-0.38; and diversity index (H'), 0.90-1.12. Based on evaluation of the environmental states by the community indices, the ecological evaluation index (EEI) of Taean peninsula was "moderate". The overall species and biomass of seaweeds decreased after the oil spill. However, Hakampo previously showed a similar algal community structure. In conclusion, the algal community was temporarily affected by the oil spill, but rapidly recovered.

A Design of Secure Mobile Agent Systems Employing ID based Digital Multi-Signature Scheme (ID기반 디지털 다중 서명 기술을 적용한 안전한 이동 에이전트 시스템의 설계)

  • Yoo, Seong-Jin;Kim, Seong-Yeol;Lee, Ok-Bin;Chung, Il-Yong
    • The KIPS Transactions:PartC
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    • v.10C no.1
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    • pp.17-26
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    • 2003
  • Mobile agent system comes into the spotlight since it contributes largely to mobile computing on distributed network environment. However, this system has a number of significant security Problems. In this Paper, we analyze suity attacks to mobile agent system Presented by NIST[3]. In order to protect this system from them, we suggest a security protocol for mobile agent system by employing R based key distribution and digital multi-signature scheme. To solve these problems described in NIST, securities for mobile agent and agent platform shouid be accomplished. Comparing with other protocols, our protocol performs both of these securities, while other protocols mentioned only one of them. Proposed Protocol satisfies simplicity of key management, providing security service such as confidentiality, integrity, authentication and preventing reputation, liveness guarantee, protection of excution-result data and preventing replay attack. Furthermore, it is designed to detect message modification immediately by verifying each step of agent execution at a corresponding server.

Optical Properties of Undoped and $Ni^{2+}$ -doped $MgIn_2Se_4$ Single Crystals ($MgIn_2Se_4 및 MgIn_2Se_4 : Ni^{2+}$ 단결정 성장의 광학적 특성에 관한 연구)

  • Kim, Hyeong-Gon;Kim, Byeong-Cheol;Sin, Seok-Du;Kim, Deok-Tae;Choe, Yeong-Il;Kim, Nam-O
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.48 no.1
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    • pp.12-17
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    • 1999
  • $MgIn_2Se_4 and MgIn_2Se_4 : Ni^{2+}$ single crystals were grown in the rhombohedral structure by the chemical transport reaction (C.T.R.) method using iodine as a transport agent. The optical absorption measured near the fundamental band edge showed that the optical energy band structure of these compounds had a direct band gap. The fundamental absorption band edge of these single crystals shift to a shorter wavelength region by decreasing temperature and the temperature dependence of the optical energy gaps in these compounds satisfy Varshni equation. The impurity optical absorption peaks due to nickel are observed in $MgIn_2Se_4 and MgIn_2Se_4 : Ni^{2+}$ single crystal. These impurity optical absorption peaks can be attributed to the electronic transitions between the split energy levels of $Ni_{2+}$ ions located at $T_d$ symmetry site of $MgIn_2Se_4$ host lattice. In the hotoluminescence spectrum of the single crystal at 10 K, a blue emission with a peak at 687nm and a green emission with a peak at 815nm for the $MgIn_2Se_4$ single crystal were observed.

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Enhancement of Immuno Modulatory Activities of Rubus coreanus Miquel Extracts by Nano-encapsulation Process (나노 입자화 한 복분자 저온 추출물의 면역 활성 증진)

  • Han, Jae-Gun;Kwon, Min-Chul;Ha, Ji-Hye;Jeong, Hyang-Suk;Kim, Young;Jeong, Myoung-Hoon;Kim, Jin-Chul;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.17 no.1
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    • pp.54-60
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    • 2009
  • This study was performed to improve immune activities of Rubus coreanus Miquel by encapsulation of nanoparticles. Immuno-activities of R. coreanus were investigated through aqueous extracts associated with process of water at $60^{\circ}C$. It showed high promotion of human B and T cells growth about 50%, compared to the case of other conditions. The secretion of IL-6 and TNF-${\alpha}$ was also enhanced as $2.44{\times}10^{-4}$pg/cell and $1.94{\times}10^{-4}$pg/cell, results by adding nano samples. NK cell activation was improved up to 29% higher than the conventional extraction process. The secretion of NO from macrophage showed 14.9 ${\mu}M$ on the nano-encapsulation process extracts, which was higher than others. The size of nanoparticles was in the range of 50${\sim}$300 nm, which can effect the penetration into the cells. It was clearly observed by real time confocal microscope.

Performance Assessment of Sputter-Coating-Colored BIPV Modules Through Field Test (현장 실험을 통한 Sputter Coating 컬러 BIPV 모듈의 발전성능 평가)

  • Lee, Hyo-Mun;Yoon, Jong-Ho;Kim, Hyun-Il;Lee, Gun-Hwan
    • Journal of the Korean Solar Energy Society
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    • v.40 no.5
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    • pp.1-12
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    • 2020
  • To assess the performance and characteristics of colored building-integrated photovoltaic (BIPV) modules, a comparative assessment of empirical performance was conducted on colored BIPV modules (gray, blue, and orange) and general BIPV module. These modules were installed on the south-facing slope (30°) for comparative assessment through a field test. Monitoring data were collected every 10 min from December 20, 2019 to January 21, 2020 and used to performance and characteristics analysis. Performance ratio and module efficiency were utilized during performance indexing for comparative assessment. For general BIPV modules, the operational efficiency was analyzed at 16.63%, whereas for colored BIPV modules, 13.70% (gray), 15.12 % (blue), and 14.49% (orange) were analyzed. It was discovered that the efficiency reduction caused by transmission losses owing to the application of colored cover glasses were 17.74% (gray), 9.05% (blue), and 9.86 % (orange), under field testing conditions. These values turned on an additional 7% reduction in efficiency for gray BIPV modules, compared to the degradation resulting from transmission drop (gray: 10.87%, blue: 8.99%, and orange: 9.02%) calculated using the efficiency of each module in standard test conditions (STC). Performance ratio analysis resulted in the following values: 0.92 for general BIPV modules, and 0.85 (gray), 0.91 (blue), and 0.91 (orange) for colored BIPV modules. As demonstrated by the above results, modules with a colored cover glass may differ in their operational performance depending on their color, unlike general modules. Therefore, in addition to the performance evaluation under STC, additional factors of degradation require consideration through field test.

Optimization of Production and Antioxidant Effects of Beverage Prepared using Hot-water Extracts of Polygonatum odoratum, Houttuynia cordata, and Lycium chinensis (둥굴레, 어성초, 구기자 혼합 음료의 배합비 최적화 및 항산화 효과)

  • Kang, Min-Kyung;Kim, Il-Chul;Chang, Kyung-Ho
    • Food Science and Preservation
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    • v.17 no.6
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    • pp.835-846
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    • 2010
  • The manufacture of beverages prepared using hot-water extracts of Polygonatum odoratum var. pluriflorum, Houttuynia cordata, and Lycium chinensis was statistically optimized using response surface methodology. The total polyphenol content, electron donation activity, and reducing power of optimized beverages were measured to evaluate antioxidant properties. The coefficients of determination, the $R_2$ values, were 0.9887~0.9957 for color, taste and overall acceptability. Analysis of variance showed that the model fit was a statistically significant (p<0.05). The optimized compositions of processed beverages were: Polygonatum odoratum var. pluriflorum extract, 2.15%; Houttuynia cordata extract, 1.74%; and Lycium chinensis extract, 0.19% (all w/w). Total polyphenol content, electron donation activity, and reducing power of beverages of optimized composition were 3.61 mg/L, 23.78%, and 0.26, respectively.

Effects of Ventilation Systems on Interior Environment of the Growing-finishing Pig House in Korea (육성$\cdot$비육돈사 내에서 환기형태별 환경조사 연구)

  • Song J. I.;Yoo Y. H.;Jeong J. W.;Kim T. I.;Choi H. C.;Kang H. S.;Yang C. B.;Lee Y. Y.
    • Journal of Animal Environmental Science
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    • v.10 no.2
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    • pp.93-100
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    • 2004
  • An experiment was conducted to establish comparison of ventilation efficiency in an enclosed and conventional growing-finishing pig house. The experimental pigs were in winter and summer. The main results of the experiment are as follows : Then the air from planar slot inlet the pig house flow out through the sidewall outlet operated by exhaust fan(Gl). The second structure has an air input through the circular duct inlet are plated side the juncture of the entering wall and the air into the pig house flow out through the chimney and pit outlet are operated by exhaust fan(G2). Through the air into relay fan the pig house flow out through the curtains in sidewall(G3). Similarly, air comes in through the circular duct inlet are placed the air into the pig house flow out through the curtains in sidewall (G4). Air flow rate on the floor level which is the low part of pen and the living area of pigs in the G2 and G4 system during winter was measured at 0.2 to 0.3 m/s at the 0.5 to 0.6 m/s at the maximum ventilation efficiency. As for the results of detrimental gas(ammonia) concentration ratio analysis, while G2 and G4 system sustained of summer 13.3 $\~$ 16.6 ppm, winter 14.0 $\~$ 14.6 ppm level, Gl and G3 system sustained of summer 14.6 $\~$ 20.3 ppm, winter 20.3 $\~$ 25.0 ppm, and the latter one is lower than that of the G1 and G3 system.

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