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김주필(Joo Pil Kim),김대희(Dae Hee Kim),지승환(Seung Hwan Ji),지성현(Sung Hyun Ji) 한국거미연구소 2017 한국거미 Vol.33 No.2
2017년 7월 4일부터 6일까지 경상남도 거제시 거제도 일대를 김주필, 김대희, 지승환, 지성현, 최라미, 이영경 등 한국거미연구소 회원들이 주야로 채집한 결과, 총 23과 56속 75종이 조사 연구되어 이에 발표하는 바이다. 채집한 표본은 주필거미박물관에 보관하였다. From July 4 to 6 in 2017. Joo-Pil Kim, Dae-Hee Kim, Seung-Hwan Ji, Sung-Hyun Ji, Ra-Mi Choi, Yeong-Gyeong Lee, the members of The Arachnological Institute of Korea investigated the spiders in the whole area of Geoje city, Geoje-do, Gyeongsangnam-do and report 23 Family 56 Genus 75 Species of spiders. The collected spiders are placed (stored) in the Joo-Pil Spider museum.
배추의 배축절편으로부터 캘러스와 뿌리 발생을 통한 안정적 형질전환
조미애,김춘해,민성란,고석민,유장렬,최필선,Cho, Mi-Ae,Kim, Choon-Ae,Min, Sung-Ran,Ko, Suck-Min,Liu, Jang-Ryol,Choi, Pil-Son 한국식물생명공학회 2007 식물생명공학회지 Vol.34 No.2
'정상' 배추의 배축절편을 선발마커로서 paromomycin 저항 성유전자를 갖고 있는 pPTN290으로 각각 형질전환된 EHA101, LBA4404, GV3101균주와 공동배양한 후 갤러스유도배지에서 형질전환캘러스를 얻은 후, 뿌리유도배지에서 부정근을 그리고 신초유도배지에서 신초를 각각 순차적으로 유도하였다. 형질전환캘러스를 얻은 후, 뿌리유도배지에서 부정근을 그리고 신초유도배지에서 신초를 가각 순차적으로 유도하였다. 형질전환캘러스 형성은 Agrobacterium균주에 따라 차이가 있었으며, 특히 EHA101균주에 공동배양된 배축절편으로부터 최대 6.1%까지 얻어졌다. 또한 각각의 형질전환캘러스 클론으로부터 형질전환 부정근과 신초 발생은 EHA101균주에서 60.7%와 38.2%, LBA4404에서 8.3%와 0%, GV3101에서 20.5%와 85.7%까지 각각 얻을 수 있었다. 형질전환식물체는 특별한 형태적 이상 없이 온실에서 정상적으로 자라 $T_{2}$종자를 얻을 수 있었다. GUS방법으로 7개의 후대 유식물체를 분석한 결과 gus유전자가 안정적으로 발현하고 있음을 확인하였고, 배추 genome에 single 또는 multiple copy로 전달되고 있음을 추측할 수 있었다. Hypocotyl explants of Chinese cabbage (cvs. "Jeong Sang") produced transgenic calli on callus induction medium (MS salt, B5 vitamin, 5 mg/L acetosyringone, 1 mg/L 2,4-D, 3% sucrose, 400 mg/L cefotaxime, 100 mg/L paromomycin, pH 5.8) after cocultivation with strains of Agrobacterium tumefaciens (EHA101, LBA4404, GV3101) harboring the pPTN290 containing paromomycin-resistance gene as a selectable marker, and then they transferred to root induction medium (1/2MS salt, MS vitamins, 2% sucrose, 100 mg/L paromomycin, 100 mg/L cefotaxime, pH 5.8) and shoot induction medium (MS salt, B5 vitamin, 4 mg/L $AgNO_3$, 4 mg/L 6-benzyladenine, 3 mg/L alpha-naphthaleneacetic acid, 100 mg/L paromomycin, 100 mg/L cefotaxime, 3% sucrose, pH 5.8) in order. There was a significant difference in the frequency of transgenic calli depending on Agrobacterium strains. In particular, the highest frequency (6.1%) of transgenic calli was obtained from the hypocotyls cocultivated with EHA101 strains. Also, the frequency (%) of transgenic root and plants from each transgenic callus clone were obtained with 60.7% and 38.2% in EHA101, with 8.3% and 0% in LBA4404, with 20.5% and 85.7% in GV3101 strains, respectively. They were grown to maturity in a greenhouse and normally produced $T_2$ seeds. GUS histochemical assay for progeny ($T_2$) revealed that the transgenes was expressed in the plant genome, and progeny analysis from 7 independent transgenic events demonstrated that the transformants transmitted the transgene as a single or multiple functional locus.
Impact of hs-CRP on outcomes in acute myocardial infarction according to LDL cholesterol level (초)
( Sang Woong Choi ),( Yun Kyeong Cho ),( Jae Pil Lee ),( Ji Hyun Sohn ),( Hyun Ok Cho ),( Hyoung Seob Park ),( Hyuck Jun Yoon ),( Hyung Seop Kim ),( Chang Wook Nam ),( Seung Ho Hur ),( Yoon Nyun Kim ) 대한내과학회 2012 대한내과학회 추계학술대회 Vol.2012 No.1
Electrochemical Properties of Cross-linked Polyurethane Acrylate-Based Gel Polymer Electrolyte
Kim, Hyun-Soo,Kim, Sung-Il,Choi, Gwan-Young,Moon, Seong-In,Kim, Sang-Pil The Korean Electrochemical Society 2002 한국전기화학회지 Vol.5 No.4
In this study, a gel polymer electrolyte was prepared from urethane acrylate and its electrochemical performances were evaluated. And, $LiCoO_2/GPE/graphite$ cells were prepared and their performances depending on discharge currents and temperatures were evaluated. The precursor containing $5 vol\%$ curable mixture had a low viscosity relatively. Ionic conductivity of the gel polymer electrolyte at room temperature and $-20^{\circ}C$ was ca. $5.9\times10^{-3}S{\cdot}cm^{-1}\;and\;1.7\times10^{-3}S{\cdot}cm^{-1}$, respectively. GPE showed electrochemical stability up to potential of 4.5V vs. $Li/Li^+.LiCoO_2/GPE/graphite$ cell showed a good high-rate and a low-temperature performance.
Induction Heating PWM High Frequency Inverter using New Active Auxiliary Resonant Snubber
Sang-Pil Mun,Chil-Ryong Kim,Jong-Kurl Lee,Hong-Sin Kim,Sang-Hwa Jung,Soon-Kurl Kwon 한국조명·전기설비학회 2008 조명·전기설비학회논문지 Vol.22 No.3
This research presents a new active auxiliary resonant snubber with for induction heating PWM high frequency inverter solving the problem of induction heating PWM high frequency inverter circuit which is using widely in the practical application of an induction heating apparatus, the soft switching operation and power control are impossible when the lowest power supply in the active auxiliary resonant snubber with for induction heating PWM high frequency inverter. The inverter circuit which is attempted by the on-off operation of a switch has the effect of reducing the power loss due to soft switching and high frequency switching. This confirms that power regulation is possible on a continuous basis from 0.25[kW] to 2.84[kW] where the duty factor (D) changes from 0.08 to 0.3 under zero current switching which operates by an asymmetrical pulse width modulating control. The power conversion efficiency is 95[%]. Due to these results, the active auxiliary resonant snubber for an induction heating PWM high frequency inverter is considered effective as a source of induction heating.
Deep neural network-based prediction for low-energy beam transport tuning
Kim Dong-Hwan,Kim Han-Sung,Kwon Hyeok-Jung,Lee Seung-Hyun,Yun Sang-Pil,Kim Seung-Geun,Yu Yong-Gyun,Dang Jeong-Jeung 한국물리학회 2023 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.83 No.8
Time-varying characteristics of an ion source are induced by environmental change or aging of parts inevitably, making a data-driven prediction model inaccurate. We consider non-invasively measured beam profles as important features to represent initial beam from ion sources in real time. Beam-induced fuorescence monitor was tested to confrm change of beam properties by ion source operating conditions during a beam commissioning phase. Machine learning-based regression models were built with beam dynamics simulation datasets over a range of input parameters in the RFQ-based accelerator. Best prediction for the low-energy beam tuning was obtained by deep neural networks model. The methodology presented in the study can help develop advanced beam tuning models with non-invasive beam diagnostics in time-varying systems.
Pil-Jae Kong,Jong-Seon Byun,So-Young Lim,Jae-Jun Lee,Sung-Jun Hong,Kwang-Jun Kwon,Sung-Soo Kim 대한생리학회-대한약리학회 2008 The Korean Journal of Physiology & Pharmacology Vol.12 No.2
Melatonin has been reported to protect neurons from a variety of neurotoxicity. However, the underlying mechanism by which melatonin exerts its neuroprotective property has not yet been clearly understood. We previously demonstrated that melatonin protected kainic acid-induced neuronal cell death in mouse hippocampus, accompanied by sustained activation of Akt, a critical mediator of neuronal survival. To further elucidate the neuroprotective action of melatonin, we examined in the present study the causal mechanism how Akt signaling pathway is regulated by melatonin in a rat primary astrocyte culture model. Melatonin resulted in increased astrocytic Akt phosphorylation, which was significantly decreased with wortmannin, a specific inhibitor of PI3K, suggesting that activation of Akt by melatonin is mediated through the PI3K-Akt signaling pathway. Furthermore, increased Akt activation was also significantly decreased with luzindole, a non-selective melatonin receptor antagonist. As downstream signaling pathway of Akt activation, increased levels of CREB phoshorylation and GDNF expression were observed, which were also attenuated with wortmannin and luzindole. These results strongly suggest that melatonin exerts its neuroprotective property in astrocytes through the activation of plasma membrane receptors and then PI3K-Akt signaling pathway.
Kim, Sung-Soo,Kong, Pil-Jae,Kim, Bong-Seong,Sheen, Dong-Hyuk,Nam, Su-Youn,Chun, Wan-Joo The Pharmaceutical Society of Korea 2004 Archives of Pharmacal Research Vol.27 No.3
Microglia are the major inflammatory cells in the central nervous system and become activated in response to brain injuries such as ischemia, trauma, and neurodegenerative diseases including Alzheimer's disease (AD). Moreover, activated microglia are known to release a variety of proinflammatory cytokines and oxidants such as nitric oxide (NO). Minocycline is a semi-synthetic second-generation tetracycline that exerts anti-inflammatory effects that are completely distinct form its antimicrobial action. In this study, the inhibitory effects of minocycline on NO and prostaglandin E$_2$ (PGE$_2$) release was examined in lipopolysaccharides (LPS)-challenged BV2 murine microglial cells. Further, effects of minocycline on inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression levels were also determined. The results showed that minocycline significantly inhibited NO and PGE$_2$ production and iNOS and COX-2 expression in BV2 microglial cells. These findings suggest that minocycline should be evaluated as potential therapeutic agent for various pathological conditions due to the excessive activation of microglia.