Seung-Han Kim
YOU?
Author Swipe
View article: A Case Study on the Rapid Spread of Fire Blight Due to Hail and Continuous Rainfall
A Case Study on the Rapid Spread of Fire Blight Due to Hail and Continuous Rainfall Open
Fire blight, a bacterial disease caused by Erwinia amylovora, affects fruit trees and can be transmitted between orchards over distances up to 10 km, primarily through infected seedlings or contaminated equipment. Within a 1 km radius, nat…
View article: A Novel <i>Phaeoacremonium</i> Species Isolated from Galls on the Chinese Magnolia-Vine ( <i>Schisandra chinensis</i> ) in Korea
A Novel <i>Phaeoacremonium</i> Species Isolated from Galls on the Chinese Magnolia-Vine ( <i>Schisandra chinensis</i> ) in Korea Open
The fungal strain KNUF-24-9L1a, belonging to the genus Phaeoacremonium, was isolated from gall-midge (Lasioptera sp.; Diptera: Cecidomyiidae) larvae and their galleries on a Chinese magnolia-vine (Schisandra chinensis) sample collected in …
View article: A Study on the Explosion Effects of Aircraft Gun Bullets and Quality Improvements with Bulletproof Cover
A Study on the Explosion Effects of Aircraft Gun Bullets and Quality Improvements with Bulletproof Cover Open
본 연구는 기총의 비정상 상황에서 발생 되는 폭발 및 탄피의 영향에 의한 1차 결함으로부터 항공기 안전을 확보하기 위해 기총 Bay 내 품질개선을 수행하였다. 결함의 주요 원인은 기총 사격 임무 중 회수되는 탄의 지연탄 비정상 폭발로 발생된다. 폭발 및 탄피의 물리적 영향은 착륙 및 비상발전기 등 배선의 손상과 유압 튜브의 결함을 유발하며, 항공기 안전에 심각한 문제를 야기할 수 있다. 따라서 항공기 안전을 확보하기 위해 기…
View article: Prediction of Shipping Cost on Freight Brokerage Platform Using Machine Learning
Prediction of Shipping Cost on Freight Brokerage Platform Using Machine Learning Open
Not having an exact cost standard can present a problem for setting the shipping costs on a freight brokerage platform. Transport brokers who use their high market position to charge excessive commissions can also make it difficult to set …
View article: Brown Felt on Persimmon (Diospyros kaki) Caused by Septobasidium sp. in Korea
Brown Felt on Persimmon (Diospyros kaki) Caused by Septobasidium sp. in Korea Open
In 2020, a brown felt was observed on persimmon (Diospyros kaki) in persimmon orchards, Sangju, Korea. The symptom on persimmon was white to grey mycelial mats on some areas of the branches. Each mat progressively expanded until the mats c…
View article: Occurrence and Eradication of Plum Pox Virus on Ornamentals in Korea, 2016-2017
Occurrence and Eradication of Plum Pox Virus on Ornamentals in Korea, 2016-2017 Open
Plum pox virus (PPV) is a significant viral disease in Prunus spp. worldwide. A nationwide survey was started in Prunus spp. orchards, since PPV was first detected from peach in Korea, 2015. During 2016-2017, samples were collected from 30…
View article: First Report of Bacterial Root Rot Caused by Serratia plymuthica on Panax ginseng
First Report of Bacterial Root Rot Caused by Serratia plymuthica on Panax ginseng Open
In August of 2011, a wilting disease of ginseng was observed at Bongwha, Gyeongbuk province, Korea. Affected plants initially show withering symptoms on leaves of ginseng. As the disease progresses, withering leaves spread downward, eventu…
View article: THE INFLUENCE OF REFLECTIVE FILM IN PEACH
THE INFLUENCE OF REFLECTIVE FILM IN PEACH Open
This study was carried out for investigate the effect of reflective material during harvest season.'Mihwang', 'Soohwang' and 'Kanoiwa Hakuto' cultivars were treated with the porous reflective film and the aluminium reflective film for 15 d…
View article: Occurrence of Bacterial Stem Rot of Ranunculus asiaticus Caused by Pseudomonas marginalis in Korea
Occurrence of Bacterial Stem Rot of Ranunculus asiaticus Caused by Pseudomonas marginalis in Korea Open
In December 2016, stem rot symptoms were observed on Persian buttercup (Ranunculus asiaticus) plants in Chilgok, Gyeongbuk, Korea. In the early stage of the disease, several black spots appeared on the stem of infected plants. As the disea…
View article: First Report of Botryosphaeria parva Causing Stem Blight on Rubus crataegifolius in Korea
First Report of Botryosphaeria parva Causing Stem Blight on Rubus crataegifolius in Korea Open
In 2015, stem blight of Rubus crataegifolius was observed in Pohang, Korea. The symptoms began as dark red spots in the stem, which led to stem blight, then leaf blight, and eventually resulted in death. A fungal isolate was obtained from …
View article: Performance Test of a 75-tonf Rocket Engine Turbopump
Performance Test of a 75-tonf Rocket Engine Turbopump Open
75톤급 액체로켓엔진용 터보펌프 개발 시제에 대한 조립체 성능시험이 터보펌프 실매질 시험설비에서 수행되었다. LN2와 케로신을 적용한 첫 시험에서는 터보펌프 구성품들의 조립체 상태에서의 수력/공력 성능 및 출력 매칭 점검이 설계회전수 근방에서 이루어 졌으며 LOX와 케로신을 적용한 실매질 시험에서는 터보펌프의 설계성능 및 엔진운용영역 탈설계 성능 검증이 이루어졌다. 탈설계시험의 경우, 내구성 검증을 위해 엔진의 운용시간을 초…
View article: Twig Blight on Chinese Magnolia Vain Caused by Botryosphaeria dothidea in Korea
Twig Blight on Chinese Magnolia Vain Caused by Botryosphaeria dothidea in Korea Open
2015ë 6ìì ê²½ë¶ ë¬¸ê²½ììì ì¬ë°°íë ì¤ë¯¸ììì ì¤ê¸°ë§ë¦ì¦ìì´ ë°ìíìë¤. ë°ë³ ì´ê¸°ìë ìì ì ë¨ ë¶ìë¶í° ìì¶ëë©´ì ê³ ì¬íìì´ ë°ìíìê³ , ë³ì´ ì§íë¨ì ë°ë¼ ì¤ê¸°ë¥¼…
View article: Incidence of Wildfire Disease on Soybean of Korea during 2014-2015
Incidence of Wildfire Disease on Soybean of Korea during 2014-2015 Open
ë¤ë¶ë³ì 콩ì 주ì ì¸ê· ë³ ì¤ íëë¡ êµë´ 콩 주ì ì¬ë°°ì§ìì 꾸ì¤í ë°ìëê³ ìì§ë§ ì§ê¸ê¹ì§ ë°ì ì ëì ëí ë³´ê³ ê° ììë¤. êµë´ 콩 주ì ì¬ë°°ì§ìì ë¤ë¶ë³ ë°ë³ ì ë를 201…
View article: Construction and Start-up Test of Hot-firing Test Facility for KSLV-II Combustion Chamber
Construction and Start-up Test of Hot-firing Test Facility for KSLV-II Combustion Chamber Open
본 논문은 한국형발사체 연소기 연소시험설비의 구축과 시운전 결과를 다루고 있다. 이 시험설비는 2012년부터 2014년까지 구축되었고, 2014년 하반기에 시운전이 수행되었다. 시운전 과정에는 산화제 수류시험, 연료 수류시험, 냉각수 수류시험 등이 수행되었고, 이후 점화시험이 이루어졌다. 점화시험 결과는 연소기의 시동시퀀스를 설정하는데 적용되며, 저압연소시험과 설계점 연소시험을 위한 기초자료로 활용되게 된다. This pap…