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ROS(Robot Operating System) 기반 자율주행 배송 플랫폼 아키텍쳐 설계
손영광(Younggwang Son),정경섭(kyeongsub Jeong),노승현(Seunghyeon Noh),이주현(Juhyeon Lee),문대영(Daeyoung Moon),심우현(Woohyun Sim),주형진(Hyeongjin Joo),전영훈(Younghoon Jeon),김범준(Beomjoon Kim),이기범(Kibeom Lee) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11
Recently, there is a lot of demand for non-face-to-face food and parcel delivery. The autonomous delivery platforms require high-level autonomous driving technology to drive on general roads and cope with unexpected situations. However, much research has not been conducted compared to autonomous vehicles (AV). Autonomous delivery platforms are equipped with various sensors such as LiDAR, Camera, GPS, and IMU. Such sensors need to select the optimal equip position and angle according to the size or shape of the platform. Also, in order to implement an autonomous delivery system, various driving algorithms are required and integration of each element algorithm is essential. In this research, a variable platform is designed to easily set the position to optimize the sensor performance. An autonomous driving algorithm structure for modularization is developed.
Oh, Dong Hoon,Oh, Daeyoung,Son, Hyeon,Webster, Maree J,Weickert, Cyndi S,Kim, Seok Hyeon Springer 2014 JOURNAL OF NEURAL TRANSMISSION Vol.121 No.7
<P>Previous human postmortem studies have shown that expression of glutamate transporters (SLC1A2 and SLC1A3) and gamma-aminobutyric acid-synthesizing enzyme [glutamic acid decarboxylase 1 (GAD1)] are reduced in the dorsolateral prefrontal cortex (dlPFC) in subjects with major depressive disorder (MDD). However, no studies have explored the association between these two molecules and its related biological processes in MDD because of limited postmortem sample availability. Data sharing using the Stanley neuropathology consortium integrative database (SNCID), a web-based tool that integrates datasets from the same postmortem brain samples, allowed us to reanalyze existing postmortem data efficiently. We found two datasets where the mRNA levels of GAD1 and SLC1A2 in subregions of the dlPFC were significantly and marginally lower in subjects with MDD (n = 15) than in controls (n = 15) (p = 0.045 and 0.057, respectively). In addition, there was a positive correlation between these two molecules (n = 30, p < 0.05). Spearman's rank correlation analysis using all available datasets revealed that the expression levels of both GAD1 and SLC1A2 mRNAs were commonly correlated with the expression levels of several neuropathological markers in the dlPFC in all of the SNCID subjects (n = 60, p < 0.001). Most of these markers are known to be involved in the RAF/MEK/ERK signal transduction pathway. This exploratory study provides an initial step for future studies to investigate an association between the reductions in SLC1A2 and GAD1 mRNA expression and their relation to the attenuation of the RAF/MEK/ERK signaling pathway in the dlPFC in MDD. The integration of the existing archival data may shed light on one important aspect of the pathophysiology of MDD.</P>
Isolation of Multi-Abiotic Stress Response Genes to Generate Global Warming Defense Forage Crops
Netty Ermawati,Jong Chan Hong,Daeyoung Son,Joon-Yung Cha 한국초지조사료학회 2021 한국초지조사료학회지 Vol.41 No.4
Forage crop management is severely challenged by global warming-induced climate changes representing diverse a/biotic stresses. Thus, screening of valuable genetic resources would be applied to develop stress-tolerant forage crops. We isolated two NAC (NAM, ATAF1, ATAF2, CUC2) transcription factors (ANAC032 and ANAC083) transcriptionally activated by multi-abiotic stresses (salt, drought, and cold stresses) from Arabidopsis by microarray analysis. The NAC family is one of the most prominent transcription factor families in plants and functions in various biological processes. The enhanced expressions of two ANACs by multi-abiotic stresses were validated by quantitative RT-PCR analysis. We also confirmed that both ANACs were localized in the nucleus, suggesting that ANAC032 and ANAC083 act as transcription factors to regulate the expression of downstream target genes. Promoter activities of ANAC032 and ANAC083 through histochemical GUS staining again suggested that various abiotic stresses strongly drive both ANACs expressions. Our data suggest that ANAC032 and ANAC083 would be valuable genetic candidates for breeding multi-abiotic stress-tolerant forage crops via the genetic modification of a single gene.
Acquisition of Thermotolerance in Transgenic Orchardgrass Plants with DgHSP17.2 Gene
Kim, Ki-Yong,Jang, Yo-Soon,Cha, Joon-Yung,Son, Daeyoung,Choi, Gi Jun,Seo, Sung,Lee, Sang Jin Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.5
To develop transgenic orchardgrass (Dactylis glomerata L.) resistant to high temperature, the recombinant DgHSP17.2 gene was introduced into orchardgrass plants using the Agrobacterium-mediated transformation method and expressed constitutively under the control of the CaMV 35S promoter. The results of genomic DNA PCR and Southern analysis showed a DNA band and hybridization signal on agarose gel and X-ray film in transgenic orchardgrass plants harboring the recombinant DgHSP17.2 gene, but a DNA band and hybridization signal were not observed in the wild type and empty vector control plants. The same result was also obtained in RT-PCR and Southern blot analysis, and these transgenic orchardgrass plants did not show any morphological aberration both in the culture bottle and soil mixture. When leaf discs cut from transgenic orchardgrass plants with recombinant DgHsp17.2 gene were exposed to lethal temperature (heat treatment at $60^{\circ}C$ for 50 min), 60-80% of the leaf discs showed only damage symptoms, but non-transgenic leaf discs showed a lethal condition. These results indicate that the DgHsp17.2 gene may act as a protector from heat stress in plants.