Acaricidal toxicities and synergistic activities of Salvia lavandulifolia oil constituents against Dermatophagoides farinae, D. pteronyssinus, and Tyrophagus putrescentiae

Seon?A Choi,Won-Seok Lee,Yun-Seon Yu,Myung-Ji Lee,Hoi-Seon Lee 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.4

미디어의 사회적 죽음에 대한 재현과 맥락적 의미 -고(故) 노무현 대통령 서거 TV 보도에 대한 기호네트워크 분석(Semiotic Network Analysis)-

백선기 ( Seon Gi Baek ),김강석 ( Kang Seok Kim ) 한국기호학회 2009 기호학연구 Vol.26 No.-

The purpose of this study was to investigate patterns of media coverage on the death of former president Moo-Hyun Roh, and its social, political and ideological meanings in the context to Korean society. He had been a central figure who would turn the Korean society into very severe conflicts politically as well as ideologically. Nonetheless, after this death, the Korean society changed rapidly from the atmosphere of criticizing him into the climate for cherishing his great contribution. The authors raised three research questions; that is, `Were there any differences in covering his death among TV stations? If there were differences, what were they?`, `What were differences in types of representation and discourses among TV coverages?` and `What were ideological meanings in such kinds of different types of representation and discourse?`. In order to answer these research questions, they collected news items of three TV stations-that is, KBS 1-TV, MBC TV and SBS TV-from May 23, 2009 to June 10, 2009, and analyzed them through semiotic research methods, especially, Seon-Gi Baek`s `Semitoic Network Analysis(SNA)` and `Discoursive Structure Analysis(DSN)`. As a result of this study, first of all, it was found that there were differences in covering his death among three TV stations on the basis of its own ideological position and favor for or disfavor against him. Second, Korean TV media tended to pay attention to causes of his commit suicide as if it would be a normal incident of commit suicide in order to depoliticize it. Third, they tended not to focus various meanings of his death personally but to emphasize on political and ideological meanings of his death socially in the context to Korean society. In conclusion, the Korean media had a tendency of covering his death differently on the basis of its own political and ideological position: that is, the one tried to put more ideological and political meanings on his death, while the others were inclined to put more personal meanings on his death through de-politicizing meanings of his death.

新羅國家성립과정에 있어서 小國爭疆

宣石悅 부산경남사학회 2003 역사와 경계 Vol.49 No.-

The Silla chapter of Samguksagi(三國史記) tells the record of conflicts among chiefdom societies in the age of King Pasa(婆娑). This paper is to show that on the basis of this record these conflicts became a great moment in the foundation process of Silla State. According to this record, Saroguk(斯盧國) had some groups like Hanjibu(漢祗部), which were called 'Jukbu'(六部). They were not 'Jukbu'(六部), the capital of Silla, but counties(邑落) belonged to Saroguk. Saroguk was one of chiefdom societies in Jinhan(辰韓)'s line. The rulers of chiefdom societies had not controlled their members well before the middle of the third century, but afterwards they built up their strength and began to rule their counties powerfully. This change coincides with the records of <魏志東夷傳> or <晉書東夷傳>, contemporary historical accounts as well as the then archeological situations. In spite of this, historians philologically approve the chronology of Samguksagi and think that these conflicts happened in A.D. 102, or before the middle of the third century. The above records of conflicts reflect the king's control over the counties in Saroguk, not their independence as in previous views. It is known that there are some problems with the value and the date of historical materials in the early records of Samguksagi. By reason of this, it has to be understood that the chronology of conflicts is not A.D. 102 as in the early records of Samguksagi, but A.D. 284, the corrected date. After the powers of China's counties(郡縣) had declined in the late third century, other rights of negotiation resulted in conflicts and confrontations. Consequently political unity was strengthened and the sphere of power was formed to keep and solidify the rights of negotiation. These conflicts happened between Siljikguk(悉直國) in Yejok(濊族)'s line and Eumjeupbeol-guk(音汁伐國) in Jinhan's line. Sanoguk, which was the leading power of eastern negotiations, blocked the southern advance of Yejok(濊族). And then Kuyaguk(狗邪國), which had the leadership of the Nakdong River valley, intervened in that dispute. But Saroguk coped with such difficulties and held the leading power of the Jinhan area. Consequently, it had secured stronger and more extended power including even the chiefdom societies in Yejok's line. As some previous views, they had a strong idea that this right of negotiation was a union right of chiefdom societies before the foundation of the ancient state. But such a union can be formed when firstly they subjugated around and controlled them, and graded the subject leading class, and finally came to reach the step to rule the subjugated areas indirectly like Koguryeo(高句麗). Therefore, it has to be thought that Silla had subjugated the chiefdom societies around it, and controlled them until the middle of the fourth century, and then was formed as a union with Saroguk, as the center one. In the age of Maripgan(麻立干), it is shown that the central power of Silla could not reach the local areas because of the intervention of Koguryeo, so it gave Prestige Goods to the local leading class and ruled them acknowledging their authorities. Therefore, it has to be thought that Saroguk only remained in the step of having secured the predominance over the chiefdom societies in the age of political unity.

한우에 있어서 GnRH와 PGF_2α에 의한 발정동기화 연구

강한석,김선구 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1

This study was conducted to get some information for the timed insemination program development of Korean native cows. Korean native cows that didn't show estrus behavior up to 60days after calving were used. Estrus synchtonization was induced by injection of PGF2α and GnRH. The estrus synchronization rate was 40.0% in treatment of PGF2α- PGF2α and 93.3% in treatment of GnRH- PGF2α -GnRH. All synchronization cows ovulated between 26 and 32hrs after the 2nd injection of GnRH and the highest ovulation rate was shown at 28hrs after the 2nd injection of GnRH. The highest pregnancy rate was shown in case of artificial insemination at 24hrs after the 2nd injection of GnRH. The pregnancy rate was 50.7% in treatment of PGF2α - PGF2α and 76.9% in treatment of GnRH- PGF2α -GnRH.

사람 위선암에서 cathepsin L의 발현증가

홍원선,홍석일,박인철,손영숙,정훈용,양석균,김해련,민영일 울산대학교 의과대학 1996 울산의대학술지 Vol.5 No.1

cathepsin L은 lysosomal cysteine 단백분해효소로서 기저막(basement membrane)과 세포외기질(extracellular matrix)을 파괴하여 암세포의 침윤과 전이에 중요한 역할을 하는 물질로 알려져 있다. 이러한 cathepsin L에 대한 mRNA 발현도를 5개의 사람 위선암(gastric adenocarcinoma) 세포주와 5명의 위선암 환자에서 채취한 조직에서 방사능으로 표지된 cathepsin L특이 cDNA를 사용한 Northern blot법으로 측정하였다. 위암의 전이병소에서 수립한 세포주인 SNU-5, SNU-16, MKN-45와 Kato Ⅲ에서는 cathepsin L mRNA가 발현되었으나 원발병소에서 수립한 AGS 세포주에서는 mRNA의 발현이 관찰되지 않았다. 5명의 위암 환자에서는 원발병소, 전이가 확인된 임파절 및 암 근처 정상 위점막에서 각각 조직을 채취하여 cathepsin L mRNA의 발현을 측정하였다. 원발병소와 전이병소에서는 모두 cathepsin L mRNA가 발현되었으나 정상 위점막조직에서는 전예에서 mRNA 발현이 관찰되지 않았다. 한편 mRNA의 발현도는 1예에서는 전이병소가 원발병소에 비해 높았으나, 2예에서는 전이병소에서 발현도가 낮았으며, 나머지 2예에서는 원발병소와 전이병소 사이에 차이가 없어, 원발병소와 전이병소 사이에 mRNA의 발현도의 일관성 있는 경향은 관찰되지 않았다. 이상의 결과는 cathepsin L은 위암의 발생과 진행에 있어 암세포의 침윤과 전이를 촉진하는 것 이외에 또 다른 역할을 할 가능성을 시사하고 있다고 사료된다. Cathepsin L, a lysosomal cysteine protease, is known to play an important role in cancer invasion and metastasis by degrading the components of basement membrane and extracellular matrix. The mRNA expression of cathepsin L was determined by Northern blot analysis using a radiolabeled cDNA specific for cathepsin L in five human gastric adenocarcinoma cell lines and five surgical specimens of primary gastric adenocarcinomas, their metastatic lymph nodes and matched adjacent normal mucosae. The mRNA of cathepsin L was expressed in all of the four cell lines established from the metastatic sites, SNU-5, SNU-16, MKN-45 and Kato Ⅲ, while not detected in one cell line established from the primary site, AGS. The mRNA was expressed in all of the five primary and five metastatic cancer specimens tested, while it was not detected in all matched normal mucosae. The intensities of the mRNA expressions, however, did not show the consistent pattern between primary sites and metastatic lymph nodes. These results suggest that cathepsin L may have the other function in addition to facilitation of the invasion and metastasis during the development and progression of stomach cancer.

중등영어교사 연수 프로그램 분석과 교사들의 필요분석에 근거한 연수 프로그램 개발을 위한 제안

송석요,이선 서원대학교 2004 敎育發展 Vol.23 No.2

The purpose of this study is to make suggestions for developing more efficient secondary English teachers' in-service program. For the study in-service English teacher training programs in Chungbuk area were analyzed. Also, the needs analysis of secondary English teachers was conducted. For the needs analysis, a questionnaire was designed and 71 English teachers who had participated in in-service training programs returned the questionnaire. The results of the needs analysis showed that English teachers want to improve their English speaking ability through in-service training programs. They also want to develop more practical skills such as classroom English, reading/writing teaching methods, games and chants rather than learning theories on linguistics and English education. In general, they were satisfied with the in-service training programs they had participated in. However, some teachers wanted more extended and more intensive English program for developing their speaking ability. Also, they pointed out the need to control the quality of the lecturers, especially, native speakers of English. The new in-service program for secondary English teachers should reflect the needs of English teachers and should be a more participant-centered program.

조립작업장에서 조립단계여유의 절대값을 이용한 지체작업비율의 최소화

우종선,문석환 한국의사결정학회 1999 경영과학연구 Vol.8 No.-

In recent, since the competition between the manufacturing firms has been so increased that the customer-oriented performance has been important, the manager's concern focus on the performance measures related due date. An average tardiness does not fully describe a manager's orientation toward jobs completed after their due date. Percentage tardy indicates how many jobs are completed after their due-date and may be viewed as a type of customer service level. Also, in a research of competitive priorities of manufacturing firms, competitive priorities are the orders of on-time delivery, consistent quality, high performance design, price, fast delivery time, customization, volume flexibility, and so on. In conclusion, we suggest that the single most critical measure of performance is the percentage tardy. This research proposes dispatching rule for assembly job shop that minimizes the percentage of tardy jobs, which have not been attempted in the proceeding studies. The proposed rule uses the absolute slack of assembly stage.

하절기 아산호의 수환경 요인 변화

임용석,마선미,신현철 순천향대학교 기초과학연구소 2003 순천향자연과학연구 논문집 Vol.9 No.2

An investigation was conducted on the water environmental factors at six sites in summer of the Asanho from 29 May to 31 August 2003. The average values of water temperature in six sites were ranged 23.0-29.0℃, highest at site 6 in upsteam of the Asaho. The average values of pH, dissolved oxygen(DO), conductivity, turbidity and salinity in six sites were 8.55-9.00, 5.38-9.84 ㎎/l, 0.198-0.222 ㎳/㎝, 39.00-58.25 NTU and 0.002%, respectively. The water temperature, pH and DO were hoghest in 31 July, and revealed similar patterns, but conductivity and salinity were highest in 29 May, also closely related to between conductivity and salinity.

대용섬유자원으로써 어저귀를 이용한 한지제조(제1보) : 어저귀의 건물 생산량 및 펄프화 특성 Productivity and Pulping Characteristics of Indian Mallow

정선화,조남석,최태호 한국목재공학회 2002 목재공학 Vol.30 No.2

본 실험은 산림자원의 감소 예방과 지구의 환경보존을 위해서 생장이 빠르고 펄프원자재로 활용할 수 있는 비목재 섬유작물을 도입하는 것을 목적으로 하고 있다. 또한 부족한 한지의 원료인 닥나무를 수입하고 있는 실정에서, 국내에서 자생하고 있는 비목재섬유로 한지를 제조함으로써 수입대체 및 원가절감 등 일석이조의 효과를 거둘 수 있다. 이에 불량한 환경조건에서도 생육이 왕성한 어저귀(Abutilon avicennae G.)를 재배하여 그간의 진보된 펄프 제조기술을 적용하여 새로운 제지용 원료로 개발함으로써 부족한 원자재는 물론이거니와 국내 부존자원 이용의 극대화를 꾀하고자 실시하였다. 또한 폐기처리되는 농산물의 이용극대화를 꾀하기 위해 전목펄프화를 실시하였다. 그 결과 어저귀는 생장속도가 빠르고 수확기가 짧으며 집약적 재배 및 관리가 가능하여 단위면적당 최대의 수확량을 올릴 수 있었다. 어저귀 인피부의 섬유장은 2.4㎜로써 목재섬유 중 소나무와, 비목재섬유 중 케나프와 매우 유사한 결과를 보여주었고, 화학성분의 분석결과 어저귀 섬유는 추출성분의 함량이 높고 리그닌이 적은 것이 특징적으로 나타났다. 펄프화와 관련하여 인피부는 150℃에서 48∼57%, 전간부는 170℃에서 43∼51%의 높은 수율을 나타냈고, 설포메틸 펄프화법의 수율이 더 높게 나타났다. 펄프의 탈리그닌율도 두가지 펄프화법 모두 90% 이상의 높은 탈리그닌율을 나타내었다. Indian mallow is characterized by the rapid growth and high harvest of the fibrous materials. This study was carried out to investigate the sheet properties of Hanji using Indian mallow, made by different pulping methods, such as alkali and sulfomethylated pulpings and different stock compositions, various mixing ratios of bast fiber, woody core and whole stalk fibers. The results from this study were summarized as follows. The length and width of the bast fibers were 1.40∼4.30㎜(av. 2.35㎜) and 9.2∼26.4㎛(av. 18.3㎛), respectively. The cell wall thickness was 4.0∼11.5㎛(av. 7.7㎛). Runkel ratio, flexibility coefficient and fiber length/fiber width ratio were 1.38, 0.42 and 128 respectively. Bast fiber and whole stalk were cooked by alkali and sulfomethylated methods. Sulfomethylated pulping resulted in superior pulp in terms of yield and quality as compared with those of alkali pulping. The pulp yields of bast fiber was higher than those of whole stalk.

DS/CDMA 시스템의 용량 분석

신석주,김기선 朝鮮大學校 電子情報通信硏究所 2004 電子情報通信硏究所論文集 Vol.7 No.2

본 논문에서는 DS/CDMA 시스템이 다양한 서비스를 지원하는 경우에 대해 상향링크와 하향링크 각각에 대한 용량을 수학적으로 유도하였다. 수신 SIR로부터 블로킹이 발생하지 않는 최대의 수신 부하에 대한 조건 방정식을 유도하였으며, 특별히 고속의 데이터와 저속의 데이터 (혹은 음성)과 같은 두 그룹의 전송률 서비스를 가정하고, 주어진 조건 방정식을 만족하는 각각에서의 최대 사용자수를 구하였다. 상향링크와는 달리 하향링크에서는 소수의 간섭원인 다른 셀의 기지국으로부터의 간섭이 단말의 수신 SIR에 크게 영향을 주므로, 각 단말의 위치에 따라 수신 SIR 값이 고려되어야 하며, 이 값은 사용자에 따라 다르게 나타난다. 이러한 이유로 하향링크에서의 정확한 수학적 용량분석이 어려우므로 본 논문에서는 power constraint equation을 이용하여 하향링크의 처리 이득을 유도하였다. 이러한 수학적 분석으로부터 임의의 전송률 그룹을 갖는 사용자들 간의 상향링크, 하향링크 각각에 대한 다중 접속 허용 영역을 도출하였다. Omnidirectional 매크로 셀 환경 등을 고려한 경우, 결과로부터 하향링크에서의 용량이 상향링크에 비해 60% 정도 높음을 보여준다. 또한, 하향링크에 있어서 코드 분할 다중화 패킷 스케쥴링 기법과 시 분할 다중화 패킷 스케쥴링 기법의 성능 비교 평가를 수행하였으며, 결과로부터 하향 링크에서의 용량 특성은 직교 인자에 의해 크게 영향을 받고 있음을 알 수 있었으며, 직교 인자가 1인 경우를 제외하고 대부분의 직교 인자 영역에서 시 분할 다중화 패킷 스케쥴링 기법이 더 우수한 성능을 도출하였음을 알 수 있었다.