http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이미지 회전기반 데이터 증식을 이용한 객체 인식 기술 연구
김창조(Chang Jo Kim),고상기(Sang-Ki Ko),김보은(Boeun Kim),정혜동(Hyedong Jung),조충상(Choong Sang Cho) 대한전자공학회 2018 대한전자공학회 학술대회 Vol.2018 No.6
Data augmentation of train data is essential for object detection. To improve the performance, many new network structures are being performance, many new network structures are being designed. In general, there is a trade-off between accuracy and speed. In this paper, we proposed a data augmentation of image rotation for object detection. When capturing photos or especially recording videos, the results tend not to be strictly aligned. Some objects in a photo or a video can be misaligned even though others are aligned. By adding a data augmentation of image rotation, we can get high accuracy on PASCAL VOC and KITTI datasets without dropping the speed.
멀티콥터로 살포한 dimethomorph의 쪽파 중 잔류 및 분포 특성
김창조(Chang Jo Kim),이래근(RaeKeun Lee),신희정(Hee Jeong Shin),문병철(Byeong-chul Moon),김흥태(Heung Tae Kim),김이선(LeeSun Kim),김단비(Danbi Kim),이희동(Hee-Dong Lee),경기성(Kee Sung Kyung),노현호(Hyun Ho Noh) 한국농약과학회 2021 농약과학회지 Vol.25 No.2
This study was carried out to survey residue and distribution characteristics of dimethomorph sprayed onto tree onion at different application rate using an agricultural multicopter equipped with different nozzles (XR110015 and DG11002). To investigate time-dependent residue dissipation of dimethomorph, tree onion samples were randomly collected from 0 day to 14 days after final spraying. In order to investigate the residual distribution, tree onion samples were collected at regular distance on the day of the final spraying and the dimethomorph residues were analyzed. Residual analysis of dimethomorph was performed using QuEChERS method and LC-MS/MS. The residue analysis results obtained at each sampling time and position were statistically compared one another with Duncan’s multiple range test (p < 0.05). As the size of droplet is smaller, the total droplet deposition on target plants tends to increase. Thus, residues of dimethomorph sprayed with XR110015 nozzle tended to be higher than the residues with DG11002 nozzle. Residues of dimethomorph in tree onion has been dissipated and degraded by 95.9-98.2% from 0 day to 14 days after final spraying, pre-harvest day. In addition, the overall residues of dimethomorph in tree onion collected from all experimental plots were not uniform but below its maximum residue level. However, technologies for uniform spraying with unmanned multicopter should be developed to improve the efficacy of the pesticide.
김창조(Kim Chang-Jo) 한국공법학회 2004 공법연구 Vol.32 No.4
An administrative agency does not have the capacity of right. However the administrative agency that has made the disposition is given to the standing to be sued in the appeal litigation, provided by the Administrative Litigation Act Article 13. The grounds of this Article are the difference between administrative litigation and civil litigation, the convenience of the offense and defense in the litigation, and the complexity of delegative authority between nation and local agency, etc.The Korean legal system of the standing to be sued in the appeal litigation was affected by that of Japan and Germany This essay investigates the origin and development of the standing to be sued in the appeal litigation from the viewpoint of comparative law and analyzes the positive and negative sides of the system which provide an administrative agency with the standing to be sued In the appeal litigation.
GC-MS/MS를 이용한 갈색거저리 유충(Tenebrio Molitor L.) 중 농약 다성분 동시분석법 확립
김창조 ( Chang Jo Kim ),신용호 ( Yongho Shin ),원수 ( Yuan Xiu ),김민 ( Min Kim ),이래근 ( Raekeun Lee ),신희정 ( Hee Jeong Shin ),김이선 ( Leesun Kim ),손경애 ( Kyeong-ae Son ),경기성 ( Kee Sung Kyung ),노현호 ( Hyun Ho Noh ) 한국환경농학회 2022 한국환경농학회 학술대회집 Vol.2022 No.-
이 연구는 단백질 공급원으로서 미래 식량 중 하나로 각광받고 있는 갈색거저리 유충(Tenebrio molitor L.) 중 농약 및 대사체 247개 성분에 대해 modified QuEChERS 방법 및 GC-MS/MS를 이용한 다성분 동시분석법을 확립하기 위해 수행되었다. 전처리법 중 추출법 확립을 위해 추출용매(acetonitrile 및 0.1% formic acid in acetonitrile)와 추출키트(Original salt 및 EN 15662 salt)에 따른 회수율을 비교한 결과 original salts와 0.1% formic acid in acetonitrile이 사용된 경우 대상농약 중 약 80%(198개)가 회수율 적합 범위(70-120%, RSD≤20%)를 충족하였다. 또한 갈색거저리 중 지방성분 제거를 위해 acetonitrile과 n-hexane을 이용한 액액분배를 1∼4회 한 결과 4회 했을 때 회수율이 극대화되었고, 시험 성분 중 약 85%(209개)가 회수율 적합 범위를 만족하였다. 추가적으로 갈색거저리 중 간섭물질을 제거하기 위해 d-SPE sorbent (PSA, PSA+C18, C18, z-SEP, z-SEP+)와 HLB cartridge를 이용하여 정제한 결과 PSA만을 이용하여 정제했을 때 시험 성분 중 약 84%(209개)가 회수율 적합 범위를 만족하였다. 이와 같이 최적화된 전처리 방법을 이용한 분석법 검증 결과 LOQ는 1-50 μg/kg이었고, r<sup>2</sup>는 247성분 모두 0.990이상으로 양호한 직선성을 보였다. Matrix effect 산출 결과 94성분을 제외하고는 matrix에 대한 영향 정도가 medium 또는 strong으로 나타나 matrix-matched standard를 이용한 정량분석이 필요하다고 판단되었다. 회수율은 Low (LOQ) 및 High (10 또는 50 μg/kg) 수준에서 실험하였고, 두 수준에서 모두 회수율(70∼120%)과 RSD(≤20%)를 만족한 197개 성분은 정량 및 정성 분석이 가능하다고 판단되었다. 또한 한 수준에서만 적합한 회수율을 보인 9종의 농약과 두 수준에서 모두 부적합한 농약 41종은 정성분석만 가능할 것으로 판단되었다. 확립된 분석법을 현장에 적용하기 위하여 실제 갈색거저리 유충 농장에서 수집한 17개의 시료를 분석한 결과 정량 가능한 197개의 성분과 정성 가능한 50개의 성분 모두 LOQ 미만이었다.
참외 껍질 유무에 따른 Acrinathrin, Diflubenzuron, Mandipropamid, Pyraclostrobin 잔류량 비교
김이선(Leesun Kim),박정훤(Jeong-Hwon Park),노현호(Hyun-Ho Noh),김창조(Chang-Jo Kim),김단비(Dan-Bi Kim),권혜영(Hyeyoung Kwon),진용덕(Yong-Duk Jin),노진호(Jin-Ho Ro) 한국농약과학회 2021 농약과학회지 Vol.25 No.3
For pesticide residue analysis in oriental melon, unpeeled sample is used in Korea but peeled sample is used in Japan, which can cause some difficulties in exporting melons to Japan. This study was designed to compare the amount of pesticide residue in unpeeled and peeled melon. Target pesticides, acrinathrin and diflubenzuron (insecticides) and mandipropamid and pyraclostrobin (fungicides) were applied two or three times onto the oriental melons at the interval of ten days. After the final application, the samples were collected at 0, 1, 3, 5, 7 and 14 days. Unpeeled and peeled melon samples were pulverized respectively for residue analysis. The residues in unpeeled samples were 0.02-0.28 ㎎ ㎏<SUP>-1</SUP> for acrynathrin, 0.03-0.43 ㎎ ㎏<SUP>-1</SUP> for diflubenzuron, 0.06-0.48 ㎎ ㎏<SUP>-1</SUP> for mandipropamid, and 0.03-0.32 ㎎ ㎏<SUP>-1</SUP> for pyraclostrobin. The residues of acrynathrin, diflubenzuron, mandipropamid, and pyraclostrobin in peeled samples were 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, 0.01-0.04 ㎎ ㎏<SUP>-1</SUP>, and 0.01-0.02 ㎎ ㎏<SUP>-1</SUP>, respectively. The residue ratios in the unpeeled/peeled oriental melon at 0-14 DAT (days after treatment) were 3.5-28.6 for acrynathrin, 5.4-24.9 for diflubenzuron, 12.5-18.1 for mandipropamid, and 6.1-42.4 for pyraclostrobin. When the lowest residue ratio is applied to maximum residue level (MRL) guideline of Japan, MRLs of acrynathrin, diflubenzuron, madndipropamid, and pyraclostrobin residues in unpeeled oriental melon were changed into 0.07, 1.07, 0.12, and 0.31 ㎎ ㎏<SUP>-1</SUP>, respectively. When acrynathrin, diflubenzuron, mandipropamid, and pyraclostrobin residue in unpeeled oriental melon were under 0.07, 1.07, 0.12, and 0.31 ㎎ ㎏<SUP>-1</SUP>, it is possible to export the oriental melons to Japan without extra test.
이훈,조성걸,김창조,김형식,Lee, Hoon,Cho, Sung-Gurl,Kim, Chang-Jo,Kim, Hyung-Sik 한국세라믹학회 1995 한국세라믹학회지 Vol.32 No.12
The effects of various additives on the microstructures of sintered ZnO varistors were examined. Bi2O3, Sb2O3 and Cr2O3 were added to ZnO step by step to identify the effect of each component. The specimens were prepared by sintering at 110$0^{\circ}C$ and 120$0^{\circ}C$ in ambient atmosphere. In ZnO-Bi2O3-Sb2O3 ternary system, decrease of averge grain size due to antimony oxide addition depends on sintering temperature as well as Bi2O3 content. When Sb2O3 was partly or completely replaced by Cr2O3, grain size was further reduced. A significant amount of pyrochlore phase which was not transformed to spinel and Bi2O3-rich liquid phase seemed to remain during sintering at 110$0^{\circ}C$. Unlike ZnO-Bi2O3-Sb2O3 system, the $\alpha$-spinel phase containing significant amount of Cr did not transform to pyrochlore during furnace cooling. Fine spinel particles around 1${\mu}{\textrm}{m}$ size were ovserved within ZnO grains and grain boundaries, which were believed to be responsible for grain-growth inhibition in ZnO-Bi2O3-Sb2O3.