Improved Micropropagation of Root Chicory, Cichorium intybus L. var. sativus.

Lim,Jung-Dae,Yang,Deok-Chun,Lee,Hyeon-Yong,Kim,Jong-Dai,Lee,Jin-Ha,Sung,Eun-Soo,Yu Chang-Yeon 한국자원식물학회 2004 Plant Resources Vol.7 No.1

The establishment of an efficient protocol for plant regeneration and micropropagation from leaf explant cultures of Chicory, Cichorium intybus L. var. sativus. is reported. Callus formation rate appeared 100% from explant in all growth regulators, but calli formed in the prensence of naphthaleneacetic acid (NAA) were appeared very compact and non-embryogenic state. The regenerated shoots were obtained from leaf explant cultures on solid MS medium containing different concentrations of cytokinins and auxin. The highest number of shoots (5.7) per explant and shoot growth (2.8cm) was obtained on MS medium containing 0.1 mg BAP L^-1 and 0.1 mg NAA L^-1. Indole acetic acid was the most suitable auxin for root formation among three auxins tested. 2,4-D had no effect on shoot and root formation.

Extension of Lance Life by Change of Height of Lances in the Smelting Furnace of Mitsubishi Process

Sung‑Mi Lim,Soo‑Sang Park,Kyung‑Woo Yi 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.10

A Mitsubishi process, which pertains to continuous Cu production, involves a smelting furnace, cleaning furnace, and convertingfurnace connected in series. One of the main issues pertaining to the smelting furnace is the frequent interruption ofoperations required to allow the inspection and replacement of lances, because lances are frequently fractured. The presentstudy was aimed at modifying the operating conditions of the smelting furnace to suppress lance fractures. A numericalmodel was developed to simulate the transport phenomena in the furnace, including multi-phase behaviors. The simulationresults showed that the lances were exposed to a severely erosive atmosphere with high temperatures. Further calculationindicated that raising the positions of the lances could lower the temperature of the lances, and reducing the occurrence ofsplashed melt, which contains erosive sulfides. The smelting furnace was operated under the conditions of the raised lanceheight and attentively monitored for several months. It was confirmed that by implementing such a change of the lanceheights, the occurrence of lance failures has been considerably reduced without notably affecting the reaction ability of thesmelting furnace.

THE DEVELOPMENT OF A UV FLAME DETECTOR FOR THE AUTOMATIC FIRE SUPPRESSION SYSTEM FOR ENGINE COMPARTMENT FIRES

Lim,Sung-Mook,Jung,Ki-Chang,Kim,Eung-Sik,Kim,Hong 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-

In this work, a new type of UV flame detection system was developed. In order to measure the performance of UV flame detector, various kinds of experiments was performed. The results show that the maximum response time of the UV flame detector is 0.2 seconds when the detection distance is one meter The advantages of this system include wide area, high speed response and high sensitivity. After testing the W flame detector in engine compartment it detected fire within 0.09 seconds and extinguished within 5 seconds. Hence, the UV flame detector can be applied in automatic fire suppression system for automobiles.

컨테이너 검색기 이송대차 추진용 선형 유도전동기의 2차측 리액션플레이트 재질에 따른 특성 연구

정재훈(Jae-Hoon Jeong),최장영(Jang-Young Choi),성소영(So-Young Sung),박종원(Jong-Won Park),임재원(Jaewon Lim) 대한전기학회 2016 전기학회논문지 Vol.65 No.1

This paper presents the analysis of the analysis of thrust characteristics of linear induction motors(LIMs) according to secondary reaction plate. LIMs are well known as high speed transport systems, which can obtain thrust directly without gears and links, or auxiliary mechanisms. A simple structure, easy maintenance, and less environmental pollution are advantages of LIMs. In transport systems using LIMs, the secondary reaction plate is an important design factor, because it has considerable impact on the cost of the railway as well as the performance of the LIMs. This paper deals analyzed the characteristics of linear induction motor used for moving the vehicle of container scanner. Thrust, efficiency and load characteristic were interpreted with FEM regarding two models whose material of secondary reaction plate was copper and aluminum. It suggested the interpretation of thrust, efficiency and power factor characteristic along slip and compared the operation ability of linear induction motor through characteristics analysis along the load.

Correction to: Active Power Tracking Control for DC‑Link Voltage Suppression of MVDC System with Voltage‑Sourced Converter

Sung‑Hun Lim,최상재,김재철,윤상윤 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.2

Effect of Inhomogeneous Nucleation of Hydride at α/β Phase Boundary on Microstructure Evolution of Zr–2.5 wt%Nb Pressure Tube

Sung‑Soo Kim,Sangyeob Lim,Dong‑Hyun Ahn,Gyeong‑Geun Lee,Kunok Chang 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.4

We analyzed the microstructural characteristics such as number density and length and width of hydrides in Zr–2.5 wt%Nbpressure tube. The hydrogen was charged cathodically and the hydride-contained sample was evaluated using the advancedanalysis methodologies. We performed a diff erential scanning calorimetry analysis to more quantitatively understand thethermodynamics of the hydride formation/growth process. We characterized the micrograph of hydride-contained Zr samplesto estimate the microstructural characteristics of the matrix and hydrides. We investigated eff ects of hydrogen concentrationand microstructure of matrix on determining microstructural measures of the hydrides. Particularly, we found that β phasein the matrix becomes isolated during the heat treatment same or above 475 °C and this change increases the inhomogeneousnucleation sites signifi cantly. We claim that the microstructure change of this matrix phase greatly increases the numberdensity of hydride.

The Study of Relationship Between Loneliness and Suicidal Ideation Among Elderly Living Alone: Focusing Moderating Effects of Perceived Social Support and Structural Social Support

Lim,Hyun-Sung,Yoon,Tae-Gyeong 한국통합사례관리학회 2021 한국케어매니지먼트연구 Vol.- No.38

This study s purpose was to examine the impact of loneliness, and two types of social support(functional and structural) on the suicidal ideation among elderly living alone. About 254 research participants were recruited from Seoul City and other cities in Gyeonggi-do and finished the questionnaires of loneliness, perceived social support, structural social support, and the suicidal ideation. Data were entered into multiple regression analyses. The finding of this research study indicates that loneliness was an important predictor for suicidal ideation. Thus, increased loneliness was associated with a high level of the suicidal ideation. This research study result showed a moderating effect of functional social support. However, structural social support did not moderate relationship between loneliness and suicidal ideation. This research study would provide implications for social work practices.

A Study on Text Styles Displayed on Main Image of Internet Website

Lim,Seung Il,Kim,Sung Hoon (사)한국디지털디자인협의회 2006 (사)한국디지털디자인협의회 conference Vol.2006 No.2

Copper Penetration of a Lance in a Smelting Furnace of the Mitsubishi Process

Sung‑Mi Lim,Kyung‑Woo Yi 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.4

This study was aimed to determine the main cause of lance fracture in a smelting furnace of the Mitsubishi continuous processfor Cu production. Investigation of lances used in field operations, thermodynamic analysis and laboratory experiments wereconducted. By analyzing the lances, damaged surface of the lances and penetration of matte components into the lance wereobserved. The depth of damage was strongly dependent on the lance height which was related to temperature. To determinethe temperature of the lance fracture, thermodynamics calculations and laboratory experiments were conducted. Both resultsshowed that the formation of Cu liquids above 1100 °C could be the main cause of lance fracture during operation of Cusmelting furnaces of the Mitsubishi process.

渤海人의 契丹 內地로의 강제 遷徙와 居住地 檢討

임상선(LIM Sang-sun) 고구려발해학회 2013 고구려발해연구 Vol.47 No.-

渤海 멸망 이전 契丹의 遼東 지역 점유 과정으로부터 928년 東丹國의 遷徙에 이르기까지 渤海 지역에서 契丹 內地로의 渤海人의 천사를 『遼史』 地理志를 중심으로 검토해 보았다. 발해가 멸망하기 이전에 거란 지역에서 발해인이 거주한 곳으로는 上京道에서는 臨潢府의 潞縣, 饒州의 長樂縣이 있다. 東京道에서는 遼州, 同州의 東平縣·永昌縣, 瀋州 소속 巖州의 白巖縣, 廣州, 銀州, 辰州가 있었다. 926년 발해 멸망 직후, 발해인이 천사된 지역으로는 上京道에서 臨潢府의 長泰縣, 定?縣, 保和縣, 宣化縣이고, 祖州의 長?縣, 懷州의 扶餘縣·顯理縣, 慶州의 富義縣, 永州의 長寧縣·義?縣, 饒州의 臨河縣·安民縣에 발해인이 있었다. 東京道에서는 通州의 扶餘縣·顯義縣·强帥縣, 龍州의 黃龍縣·遷民縣, 韓州가 있고, 이밖에 중경도 錦州 소속의 巖州도 발해 포로로 이루어진 주였다. 928년 12월부터 거란은 後患을 염려하여 옛 발해 지역에 있던 東丹國과 그 주민을 거란 지역으로 천사시켰다. 발해 上京龍泉府는 東京遼陽府의 遼陽縣·仙鄕縣·鶴野縣·析木縣·興遼縣, 그리고 湖州와 渤州로 천사되었고, 中京玄德府는 盧州·鐵州·興州는 발해와 거란의 주의 명칭이 같고, 거란 崇州는 발해 榮州를 잘못 표기한 것으로 생각된다. 東京龍原府의 慶州가 거란에서는 開州로 명칭이 바뀌었고, 나머지 鹽·穆·賀 3州는 명칭이 바뀌지 않은채 옮겨졌다. 西京鴨?府의 神州는 거란에서는 ?州로 개칭되고, 나머지 桓州, ?州, 正州는 명칭이 바뀌지 않았으며, 南京南海府의 沃州는 거란에서는 海州로 바뀌고, 해주의 소속 주인 耀州와 嬪州는 남경남해부의 椒州와 晴州가 명칭이 바뀌어 옮겨간 것이다. 5경 이외에 遂州와 信州는 발해의 懷遠府에 있던 주민이 옮겨간 곳이고, 발해의 특수한 주인 ?州·銅州·涑州의 3개 州도 천사되었다. 『요사』 지리지에서 천사 시기를 밝히지 않고, ‘本 무슨 무슨 곳 --- 故縣’, 혹은 ‘故縣’ 만으로 표시된 州, 縣은 東丹國이 천사될 때의 주, 현인 것으로 보인다. 다만, 천사된 戶는 각 府·州·縣의 지배적 집단이었을 가능성이 높고, 그 호수는 모두 발해인이라 하더라도, 이것이 각 부·주·현의 전체 호수라고는 할 수 없을 것이다. This study reviewed the Balhe People’s deportation from their Balhae territory to the inland of Gulran during the period from the Gulan tribal’s occupation on the Liadong region before the Balhe’s fall to the nation Dongran’s deportation in 928 around the geographic book 『The Khitans’ History』 As the areas that Balhae people had resided in Khitan’s ruling region before the Nation Balhae fell, there were Ro-hyun in Limwhang-bu, Sanggyeong-do and Jangak-hyun in Yo-ju. In Donggyeong-do, some Balhae people lived in Ryo-ju, Dongpyung-hyun and Yeongchang-hyun in Dong-ju, Baekam-hyun in Am-ju govered by Sim-ju, Gawng-ju, Eun-ju, and Jin-ju. Immediately after the Nation Balhae fell in 926, some Balhe people were forcibly moved to Jangtae-hyun, Jeongpae-hyun, Bowha-hyun and Seonwha-hyun in Limwhang-bu, Sanggyeong-do, Jangpae-hyun in Jo-ju, or Buyeo-hyun and Hyeon-rhiyun in Whoi-ju, Buihyun in Geyong-ju, Jangneyong-hyun and Woipung-hyun in Yeong-ju, or Limha-hyun and Anmin-hyun in Yo-ju. In Donggyeong-do, as the regions where the Balhae people lived, there were Buyeo-hyn and Hyunwoi-hyun and Gangsu-hyun in Tong-ju, Whangryonghyun, Cheonmin-hyun in Yong-ju, and Han-ju. Besides, Am-ju governed by Geum-ju, Junggyeong-do was made of Balhae captives. Sine Decemer in 928, the Khitan government forcibly moved the people of nation Dongran which had founded in the former Balhae’s territory to some regions governed by the Nation Khitan in order to prevent Dongra’s people’s resistance. The residents in Sanggyeong Yeongcheon-bu, the capital of former Balhae were forcibly moved to Royang-hun, Seonhayng-hyun, Hakya-hyun, Seokmokhyun, and Hongro-hyun in Donggyeong Yoyang-bu, and some residents were forcibly moved to the regions of Ho-ju and Bal-ju. It is considered that the Ro-ju, Cheol-ju, and Heung-ju, the adminstrative districts of Junggyeong Hyunduk-bu might have the same names with Nation Khitan’s regions, and Sung-ju under the Nation Khitan might mistakenly been written the Yeongju under the Nation Balhae. Gyeong-ju in Donggyeong Yongwonbu changed its name into Gae-ju under the Nation Khitan, and the 3 states of Yeom-ju, Mok-ju and Ha-ju remanied their names. Shin-ju in Seogyeong Aprok-bu changed its name into Rok-ju under the Nation Khitan, and the rest s3tates of Whan-ju, Pung-ju and Jeong-ju remained their names. Ok-ju in Namgyoeng Namhae-bu was changed its name to Hae-ju under the Nation Khitan, and the both states of Yo-ju and Bin-hu governed by Hae-ju were the names changed from Cho-ju and Cheong-ju governed by Namgyeong Namhae-bu. Besides the 5 gyeongs, the both states of Su-ju and Sin-hu were the regions where the Balhae residents living lived in Hhoiwon-bu under the Nation Balhae were forcibly moved into, and the residnets in 3 states specially managed by the Nation Balhae were forcibly moved to Yeongju, Dong-ju, and Sok-ju. Jus and Hyuns written in form of former 00 hyun or simply a former hyun not being writing the deportation period in the geographic book 『The Khitans’ History』 are considered as the jus and hyuns at the time when the residents of Nation Dongran were forcibly moved. But only it is very possible that forcibly moved houses(戶) might be the ruling groups of each Bu(府), Ju(州) or Hyun(縣), and even though the number of forcibly moved houses(Ho) might be composed of all Balhae people, they couldn’t be considered the number of total houses in each Bu, Ju or Hyun.