서평 : 경북교회사, 1894-1923 (필사본) -박덕일 외 편/예수교장로교회 경북지방/1923

박정규 ( Jeong Gyu Park ) 현대기독교역사연구소 2004 성결교회와 신학 Vol.12 No.-

모유 섭취 신생아 유래 Lactobacillus acidophilus에 의한 발효유 내 중미형성

박정규,송원호,홍성문,김철현,Park, Jeong-Gyu,Song, Won-Ho,Hong, Sung-Moon,Kim, Cherl-Hyun 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.5

Lactobacillus acidophilus is a normal inhabitant of the human intestine and its numerous health benefits have been reported. This organism is referred to as a "starter culture". This study was conducted to verify that the production of flavor compounds in fermented milk was obtained using a good probiotic strain of L. acidophilus from breast-fed infant feces. The bitter-tasting amino acids, such as arginine and histidine were produced in larger amounts than other free amino acids when L. acidophilus strains were inoculated in skim milk. The lactic acid was the major acid produced from glucose. L. acidophilus NB 209 was the best producer of lactic acid. This L. acidophilus NB 209 produced higher amounts of acetaldehyde than other L. acidophilus strains. L. acidophilus NB 209 gave higher flavor and taste score of the yogurt produced than other L. acidophilus strains in sensory evaluation. These results indicate that L. acidophilus NB 209 has the potential to be developed as a starter culture for fermented milk products.

IoT를 기반으로 하는 서버 룸 실시간 모니터링 및 제어 시스템

박정규,김재호,Park, Jung Kyu,Kim, Jaeho 한국사물인터넷학회 2020 한국사물인터넷학회 논문지 Vol.6 No.3

본 논문에서는 IoT를 기반으로 서버 룸의 환경을 실시간으로 모니터링하며 제어하는 시스템을 제안한다. 최근 정보화 사회가 극대화되면서 컴퓨터 시스템이 다운되었을 때 그 피해가 크다. 특히, 서버 룸의 화재와 같은 피해는 데이터의 손실로 이어지고 데이터 복구가 불가능하게 된다. 이와 같은 피해를 줄이기 위해서 IoT 시스템을 활용하여 실시간 모니터링할 수 있는 노드를 제안하였다. 또한, 노드의 정보를 취합하고 모니터링할 수 있는 코디네이터 노드를 제안하였다. 제안하는 시스템이 동작하는지 확인하기 위해 노드 모니터링 및 에어컨디셔너를 제어할 수 있는 소프트웨어를 개발하였다. 실험 결과 제안하는 시스템이 화재를 감지하고 상황에 따라 에어 컨디셔너를 제어하는 것을 확인하였다. In this paper, we propose a system that monitors and controls the environment of a server room in real-time based on IoT. Recently, as the information society has been maximized, the damage has been significant when the computer system is down. In particular, damage such as a fire in the server room leads to loss of data and data recovery becomes impossible. In order to reduce such damage, a node capable of real-time monitoring using an IoT system was proposed. In addition, we proposed a coordinator node that can collect and monitor node information. In order to verify that the proposed system works, we have developed software that can control node monitoring and air conditioning. As a result of the experiment, we confirmed that the proposed system detects fire and controls the air conditioner.

LED용 (Sr,Ba)2Ga2SiO7:Eu2+ 녹색 형광체의 합성 및 발광특성

박정규,이승재,연정호,김창해,Park, Jeong-Gyu,Lee, Seung-Jae,Yeon, Jeong-Ho 대한화학회 2006 대한화학회지 Vol.50 No.2

Eu2+를 활성제로 한(Sr,Ba)2Ga2SiO7 녹색 형광체를 일반적인 고상 반응으로 합성하였고, 그 합성된 형광체의 광발광 특성을 연구하였다. 형광체 제조 시, 마노유발에서 보다 효과적인 혼합을 위하여 아세톤을 사용하여 혼합하였다. 또한 25%H2/75%N2의 혼합기체를 이용한 환원조건에서 단순한 공정으로 형광체를 합성하였다. 이 형광체는 405 nm의 여기 파장하에서 효율적으로 발광되는 녹색 밴드(513 nm)를 갖고 있기 때문에 백색 LED(Light Emitting Diode)램프에 응용할 수 있다. In this report, Europium doped strontium barium gallium silicate ((Sr,Ba)2Ga2SiO7:Eu2+) phosphor has been synthesized by conventional solid-state method and investigated luminescent characteristic. Appropriate proportions of the raw materials were mixed in an agate mortar with acetone to obtain starting mixtures. Also, this phosphor was prepared by simple process under the reduction atmosphere (25% H2/75% N2). This phosphor can be applicated to the green phosphor for white LED because it has green emission band (513 nm), which emits efficiently under the 405nm excitation energy.

F-18 FDG PET/CT 전신 영상에서 SUVs 측정에 기반한 조기/정밀 진단 연구

박정규,김성규,조인호,공은정,박명환,조복연,Park, Jeong-Kyu,Kim, Sung Kyu,Cho, Ihn-Ho,Kong, Eun-Jung,Park, Myeong-Hwan,Cho, Bok-Yeon 한국의학물리학회 2013 의학물리 Vol.24 No.3

본 연구의 목적은 건강한 검진자들을 대상으로 F-18 FDG PET/CT 전신 영상에서 진단 수준을 향상하고자 관심부피를 이용하여 정상부위의 SUVs, 즉 SUVLBM, SUVBW, SUVBSA의 데이터를 마련하였다. 각각의 최대치(maximum), 평균치(mean), 표준편차(standard deviation), 역치(threshold)를 제시 하고자 한다. 2012년 7월부터 8월까지 전신 F-18 FDG PET/CT 검사를 시행한 총 31명을 대상으로 SUVs를 측정 하였다. 측정의 정확도를 높이고자 핵의학 전문의의 소견으로 이중에서 26명의 건강한 수검자를 대상으로 하였다. 조영제 사용유무와 관계없이 PET/CT의 SUVs 측정에서 SUVBW의 측정치가 가장 높았으며, SUVLBM, SUVBSA 순으로 나타났다. SUVLBM-최대치를 이용하여 조영제를 사용하지 않은 군과 사용한 군을 비교했을 경우, 조영제를 사용했을 경우 측정치가 증가하는 경향을 보였으며, 8부위 중 간, 대동맥, 요추-5, 소뇌는 매우 유의하게 차이가 있는 것으로 나타났다(p<0.05). PET/CT의 모든 영상의 판독에서 본 SUVs 데이터가 조기정밀/진단 수준을 향상 하는데 기초 자료가 될 것이라고 판단되며, VOI를 이용한 연구가 활발히 이루어지길 기대한다. Through this research, we measure the data for several SUVs such as SUVLBM, SUVBW, and SUVBSA using volume of interest in order to enhance the diagnostic level in whole-body image for healthy examinees via F-18 FDG PET/CT. Maximum value, mean value, standard deviation, and threshold value for each SUVs are shown. The measurement of SUVs are carried out with 31 examinees who have taken whole-body examination with F-18 FDG PET/CT from July, 2012 to August, 2012. To secure the preciseness of measurement, we selected 26 healthy examinees as a subject of measurement according to diagnostic view of a nuclear-medical doctor. We see from the measurement of SUVs of PET/CT that the value of SUVBW is hightest and followed by SUVLBM and SUVBSA in turn regardless of the use of contrast media. By comparing the SUVLBM-maximum data for the group used contrast media with those for the group used no contrast media, there found a trend that the measured values increase when the contrast media are used. Among them, liver, aorta, lumbar-5, and Cerebellum exhibit significant difference (p<0.05). We conclude that our data for SUVs would be basic references in overall image interpretation, and hope that the research using VOI would be active.

PDP용 수직형 구조의 근접 노광장치 개발

박정규,정수화,이항부,Park, Jeong-Gyu,Jeong, Su-Hwa,Lee, Hang-Bu 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.9

In this paper, we developed the proximity exposure system with the vertical structure of glass and mask stage to minimize the mask's warp caused by the pull of gravity. This system, which canirradiate the ultra violet through 1440 H 850 $\textrm{mm}^2$ and 1330X 1015 $\textrm{mm}^2$ exposure area, has the followingcharacteristics. The glass stage can be inclined by 80 degrees at vertical structure to load substrate withsafety on it. When the glass stage is the vertical state, the gap control, alignment control and exposureof ultra violet are executed. So, it enhances the pattern uniformity by minimizing the mask's warp. Theglass stage can also control the gap between the mask and the substrate by the coarse and fine motioncontrol. The mask stage can adjust the posture of photomask to the position of substrate by imageprecessing method. The galss stage for the gap control and the mask stage for the alignment aredesigned independently for each function.

Hafnium Oxide를 Trapping Layer로 적용한 Fin-Type SOHOS 플래시 메모리 특성연구

박정규,오재섭,양승동,정광석,김유미,윤호진,한인식,이희덕,이가원,Park, Jeong-Gyu,Oh, Jae-Sub,Yang, Seung-Dong,Jeong, Kwang-Seok,Kim, Yu-Mi,Yun, Ho-Jin,Han, In-Shik,Lee, Hi-Deok,Lee, Ga-Won 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.6

In this paper, the electrical characteristics of Fin-type SONOS(silicon-oxide-nitride-oxide-silicon) flash memory device with different trapping layers are analyzed in depth. Two kinds of trapping layers i.e., silicon nitride($Si_3N_4$) and hafnium oxide($HfO_2$) are applied. Compared to the conventional Fin-type SONOS device using the $Si_3N_4$ trapping layer, the Fin-type SOHOS(silicon-oxide-high-k-oxide-silicon) device using the $HfO_2$ trapping layer shows superior program/erase speed. However, the data retention properties in SOHOS device are worse than the SONOS flash memory device. Degraded data retention in the SOHOS device may be attributed to the tunneling leakage current induced by interface trap states, which are supported by the subthreshold slope and low frequency noise characteristics.

성충에 처리한 IGRs계 살충제가 집파리의 산란과 불임에 미치는 영향

박정규,최상용,김종수,김두호,이흥수,Park, Chung-gyoo,Choe, Sang-young,Kim, Jong-shu,Kim, Doo-ho,Lee, Heung-su 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.3

Two-day old house fly adults were exposed to six insect growth regulators, flufenoxuron, teflubenzuron, triflumuron, diflubenzuron, methoxyfenozide, tebufenozide, as a feed additive (milk+5% sugar+chemical) in the laboratory for 6 days. The number of eggs deposited by the exposed-adults, viability of the eggs, and $F_1$ larval development were checked. All the IGRs tested were found to have no adverse effect on the reproduction of house fly, except methoxyfenozide (210ppm). The most effective inhibitor to egg hatch was flufenoxuron, followed by teflubenzuron, triflumuron, and diflubenzuron. Exposure to flufenoxuron (over 5ppm), teflubenzuron (over 25ppm), triflumuron (over 125ppm), and diflubenzuron (over 125ppm) reduced egg hatchability to 0 to 1.3%, but lower concentrations of these IGRs were less effective (6.3 to 46.3% egg hatchability). Almost all the larvae emerged from eggs deposited by the adults exposed to diflubenzuron (62.5ppm) and teflubenzuron (12.5ppm) failed to develop into pupae, causing total mortalities of 98% and 100%, respectively. However, two IGRs, methoxyfenozide and tebufenozide, did not inhibit egg hatch and $F_1$ larval development, except methoxyfenozide (210ppm) treatment These results suggest that these 4 IGRs may be used in the development of autosterilization system for house fly control. However, further work is required to develop delivery systems capable of transferring an effective dose to the fly under field conditions.

Mn⁴⁺ 이온이 도핑된 알루미네이트계 형광체 합성과 발광특성

박정규,김영진,Park, Jungkyu,Kim, Young Jin 한국세라믹학회 2014 한국세라믹학회지 Vol.51 No.1

$Mn^{4+}$-doped $CaAl_4O_7$ ($CA_2$) and $CaAl_{12}O_{19}$ ($CA_6$) powders were prepared under different conditions, with changes in the amounts of flux, Mn concentration, and mole ratio of $Al_2O_3$ to $CaCO_3$ in the starting mixtures, which affected the structure and the luminescence. $CA_2:Mn^{4+}$ and $CA_6:Mn^{4+}$ had the same excitation and emission spectra but with different intensities. The excitation spectra exhibited broad bands (320 - 470 nm) centered at 395 nm, while red emission bands were observed at 656 nm. The emission intensity of $CA_6:Mn^{4+}$ was nearly twice as high as that of $CA_2:Mn^{4+}$, as the $Mn^{4+}$ ions were located in an octahedral crystal field in the $CA_6$, but not in the $CA_2$.

Agricultural Environment Monitoring System to Maintain Soil Moisture using IoT

박정규,김재호,Park, Jung Kyu,Kim, Jaeho The Korea Internet of Things Society 2020 한국사물인터넷학회 논문지 Vol.6 No.3

본 논문에서는 농작물 수확량에 영향을 미치는 다양한 농업 매개 변수를 측정하고, 환경 정보를 모니터링 하는 시스템을 제안한다. 국제 기구의 분석에 따르면 전 세계 인구의 60%가 농업으로 생활을 유지하고 있다. 또한, 전 세계토양의 11%가 작물 재배에 이용되고 있다. 이런 이유로 농업은 국가 발전에 중요한 역할을 담당하고 있다. 날씨 또는 환경 문제 등으로 인해 농업에 문제가 발생하면 국가 발전에 문제가 될 수 있다. 이러한 문제를 해결하기 위해서 IoT 기술을 활용하여 농업의 현대화를 하는 것이 중요하다. 농업에서 IoT 기술을 적용하여 스마트 환경을 구축하여 농업환경을 개선할 수 있다. 논문에서 제안하는 시스템을 검증하기 위해서 콩 재배농장에서 실험을 수행하였다. 실험결과 제안하는 시스템을 이용하여 콩 재배 토양의 수분을 자동으로 40%로 유지할 수 있음을 보였다. In the paper, we propose a system that measures various agricultural parameters that affect crop yield and monitors location information. According to an analysis by international organizations, 60% of the world's population lives on agriculture. In addition, 11% of the world's soil is used for growing crops. For this reason, agriculture plays an important role in national development. If a problem occurs in agriculture due to weather or environmental problems, it can be a problem for national development. In order to solve these problems, it is important to modernize agriculture using modern IoT technology. It is possible to improve the agricultural environment by applying IoT technology in agriculture to build a smart environment. Through such a smart environment, it is possible to increase the yield of agricultural products, reduce water waste, and prevent overuse of fertilizers. In order to verify the proposed system, an experiment was performed in a soybean cultivation farm. Experimental results showed that using the proposed system, the moisture in the cultivated soil can be automatically maintained at 40%.