Effects of Stressed and Unstressed Reinforcements on Prestressed Concrete Members with Unbonded Tendons

Moon, Jeong-Ho,Shin, Kyung-Jae,Lim, Jae-Hyung,Lee, Sun-Hwa Korea Concrete Institute 2000 KCI concrete journal Vol.12 No.1

The research purpose of this paper is to investigate the influential Parameters on the unbonded tendon stress. The parameters were the reinforcing ratio, the prestressing ratio, and the loading type. To this end. first, the influence of parameters were examined with twenty eight test results obtained from references. Then, an experimental study was carried out with nine specimens. Test variables were the reinforcing ratio and the prestressing ratio. Specimens were divided equally into three groups and each group had a different level of the reinforcing ratio. Each specimen within a group has a different level of the prestressing ratio. The investigation with previous and current tests revealed the followings; (1) the length of crack distribution zone does not have a close relation with the length of plastic hinge. (2) the prestressing ratio does not affect both the length of crack distribution and the length of plastic hinge, (3) the tendon stress variation is in reverse relation with the ratios of mild steels and tendons, (4) the loading type nay not affect significantly the length of crack distribution zone, (5) AASHTO LRFD Code equation and Moon/Lim's design equation predicted the test results well with some safety margins.

유방초음파 검사의 유용성에 대한 연구

문양인,김병학,명화련,도윤수,김계환,손정훈,김미회 한국건강관리협회 2000 건협 Report Vol.3 No.-

처분장근처에서 침식에 의한 Sr 화학종의 평형

조윤정,김성현,이인화,김시욱,고문주,박성규,이범규 조선대학교 환경공해연구소 2000 環境公害硏究 Vol.16 No.1

Leaching and adsorption equilibria of Sr Chemical Species from the near field of a repository has been studied in solidified cement with Fe and oxidized Fe. The absorption percent, Ads %, and distribution coefficient, K_(d) were calculated using equilibrium concentration to predict the extent of leaching and adsorption. In the mixed aqueous solutions the Ads % increase as Cement(C)/Water(W) ratios increase and K_(d) was decreased for Sr. These behaviors were discussed by adsorption and equilibrium of spiked ions. Oxides Fe promoted the adsorption of spiked ions, but pure Fe had no effect. E_(h) values were also estimated and discussed to elucidate oxidation-reduction environment of experimental system.

처분장근처에서 침식에의한 Sr 화학종의 평형

조윤정,김성현,이인화,김시욱,고문주,박성규,이범규 조선대학교 환경연구소 2000 環境硏究 Vol.16 No.1

Leaching and adsorption equilibria of Sr Chemical Species from the near field of a repository has been studied in solidified cement with Fe and oxidized Fe. The absorption percent, Ads %, and distribution coefficient, K_d were calculated using equilibrium concentration to predict the extent of leaching and adsorption. In the mixed aqueous solutions the Ads % increase as Cement(C)/Water(W) ratios increase and K_d was decreased for Sr. These behaviors were discussed by adsorption and equilibrium of spiked ions. Oxides Fe promoted adsorption of spiked ions, but pure Fe had no effect. E_h values were also estimated and discussed to elucidate oxidation-reduction environment of experimental system.

中風의 治療에 있어 淸熱法에 對한 文獻的 考察

강화정,문병순 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The literatual study on the therapy for cleaning away heat with apoplexy therapy, the result were obstained as follows. 1. In apoplexy therapy, therapy for clearing away heat is used excessive heart - fire by overacting of the five emotions, liver fire, deficiency of kidney - fluid, wind - heat. 2. The fire of aetiology of apoplexy is used therapy for clearing away heat, in aspect of viscera and bowels, divided into heat-fire, liver-fire, deficiency fire of kidney yin, wetness-phlegm of spleen heat. The treatment is clear away heart-fire, clear away liver-fire, clear away spleen-heat and sthenic water. 3. Symptom of excessiveness symptom-complex is used therapy for clearing away heat that are fever, flushed face, halitosis, heart burn, easy anger, apoplestic stroke, unconsciousness, trismus, paratysis, constipation, red tongue with yellow coat, taut-smooth pulse or full rapid pulse and symptom of insufficiency symptom - complex that are dizziness, tinitus, blurring of vision, deficiency sleeping, dreaminess, lassitude of the loins and legs, hemiplegia, red tongue with white coat or thin - yellow coat, taut- therapy-rapid pulse. 4. Therapy for norish vital essence - clearing away heat is availed in excessive fire caused by deficiency of yin of the liver and kidney, therapy for break through phlegm - clearing away heat in stagnant, heat, therapy for waking up a patient from unconsciousness - clearing away heat in stagnant heat, therapy for waking up a patient from unconsciousness - clearing away heat yang type sthenia - syndrom of coma of apoplexy involving viscera and bowels. 5. Commonly used recipes of therapy for clearing away heat are Yang gyoksan(凉膈散), Bang pungtongseongsan(防風通聖散), Sotongseongsan(小桶聖散), Jibodan(至寶丹), Supungsungisan(授風腥氣散), Woowhangchengshimwhan(牛黃淸心丸), Chengungsekgotang(川芎石膏湯), Samwhatang(三化湯) etc in excessiveness symptom - complex, and are Yukmihiwhangweon(六味地黃元), Jiwhangtang(地黃湯), Palmiji whangtang(八味地黃湯) etc in insufficiency sumptom - complex.

솔잎추출유의 산화 안정성 및 추출유를 이용한 맛김의 관능적 평가

정혜경,최창숙,이지현,장문정,강명화 한국식생활문화학회 2003 韓國食生活文化學會誌 Vol.18 No.2

생·찐솔잎에 콩기름과 올리브유를 첨가하여 추출한 솔잎추출유의 저장기간에 따른 산패도를 측정하였고 솔잎추출물을 김에 발라 제조한 맛김에 대한 관능검사 결과는 다음과 같다. 1.저장기간에 따른 중량변화 특정 결과, 콩기름은 14일째 생·찐 솔잎추출유는 21일째 생·찐 올리브유 솔잎추출유는 14일부터 중량이 서서히 증가하여 28일에 중량이 가장 크게 증가하는 것으로 나타났다. 2.TVARS 생성량도 저장기간 14일째 콩기름에 비해 콩기름에 생·찐 솔잎을 첨가할 경우 TBARS의 함량이 유의적으로 낮았고, 28일째 올리브유도 생·찐 솔잎을 첨가할 경우 TBARS의 함량이 유의적으로 낮게 나타났다. 3.시방산 산화의 2차 생성률은 aqueous layer에서 저장기간에 다라 감소하였고 특히 14일째에 다른 추출유에 비해 콩기름이 크게 감소한 것으로 나타났다. 한편 organic layer는 저장기간 14일째 콩기름에서 가장 크게 증가하였고 솔잎을 첨가할 경우 유의적으로 감소한 것으로 나타났다. 올리브유의 경우도 솔잎을 첨가한 올리브 솔잎 추출유에서 2차 생성률이 감소한 것으로 나타났다. 4.제조된 생·찐 솔잎 추출유를 김에 발라 7점 기호척도법을 이용하여 관능검사를 실시한 결과 향, 맛 전반적인 기호도 모두 유의적인 차이가 나타나지 않아 솔잎추출유를 김에다 바를 경우 거부감을 주지 않는 것으로 조사되었다. 이상의 경우 솔잎에 콩기름과 올리브유를 첨가하여 추출한 솔잎추출유는 원유보다 산화에 대해 안정한 것으로 나타났고, 이를 이용한 맛김도 좋은 것으로 평가되어 솔잎추출유의 식품에 이용 가능성이 시사되었다. In order to evaluate the oxidative stability and sensory evaluation for the pine needle extracted oils, we prepared the pine needle extracted oils by the autoclave method with soybean and/or olive oils. The lipid peroxidation was monitored by measuring the formation of 2-thiobarbituric acid reactive substances(TBARS). In addition, the secondary reaction products of lipid oxidation were measured by fluorescence spectroscopy. A weight changing was decreased in oils added pine needle during storage periods. The formation of TBARS was the lowest in olive pine needle oils after 14 days storage, whereas it was the highest in soybean oil. The levels of fluorescent products in extracted oils added pine needle were also decreased in organic layers. According to the sensory evaluation, the scores of fragrance, taste and overall preference in savored laver using an pine needle extracted oils were no significant differences. Overall results suggest that the pine needle extracted oils can be developed to functional oil resources.

체내동태 연구를 위한 혈청 중 펜톡시필린의 HPLC 정량법 개발 및 검증

조혜영,강현아,류희두,이화정,문재동,이용복 한국약제학회 2006 Journal of Pharmaceutical Investigation Vol.36 No.2

Lidocaine, Thrombin, Epinephrine 의 항균효과

김진우,이동건,전혜선,김승준,김석찬,안중현,김치홍,권순석,김영균,김관형,문화식,신완식,송정섭,박성학 대한감염학회 2005 감염과 화학요법 Vol.37 No.6

목적 : 기관지내시경 검사에서 흔히 사용되는 국소마취제인 lidocaine과 내시경시 지혈목적으로 사용되는 thrombin과 epinephrine이 각종 균주에 미치는 항균효과에 대해 알아보고자 하였다. 재료 및 방법 : 균주는 가톨릭대학교 성모병원에서 2004년 3월부터 2004년 9월까지 임상검체 에서 동정된 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 각각 42, 42, 42, 43주를 대상으로 하였다. Lidocaine, thrombin, epinephrine 감수성 검사는 National Committee for Clinical Laboratory Standards (NCCLS, 2002)의 기준에 따랐다. 결과 : Lidocaine은 S. aureus, S. pneumoniae, P. aeruginosa에서 MIC_(50), MIC_(90) 모두 20,000 ㎍/mL 이었다. K. pneumoniae는 각각 10,000 ㎍/mL이었다. Thrombin은 S. aureus와 P. aeruginosa에서 MIC50 500 lU/mL 과 MIC_(90) 500 IU/mL 이상이었고, K. pneumoniae에서는 MIC_(50)과 MIC_(90)이 모두 500 lU/mL이상이었으나 S. pneumoniae에서는 MIC_(50)과 MIC_(90)은 125 IU/mL이었다. Epinephrine은 K. pneumoniae, S. pneumoniae에 대한 MIC_(50), MIC_(90)가 모두 >500 ㎍/mL이었고, S. aureus와 P. aeruginosa에 대한 MIC_(50), MIC_(90)가 모두 500 ㎍/mL이었다. 결론 : 기관지 내시경 검사에서 흔히 쓰이는 lidocaine, thrombin, epinephrine 등의 약제들이 호흡기 질환의 흔한 병원균인 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 균주들에 대해 항균 효과가 있을 수 있어 세균배양검사에 영향을 미칠 수 있겠다. Background : We performed this stody to find out about antimicrobial effect of lidocaine which is commonly used local anesthetic, and thrombin and epinephrine used for hemostasis during bronchoscopic procedures. Materials and Methods : The microorganisms that were cultured from specimens obtained during bronchoscopy were Staphylococcus aureus (n=42), Streptococcus pneumoniae (n=42), Klebsiella pneumoniae (n=42), and Pseudomonas aeruginosa (n=43) collected from St. Mary's Hospital, from March to Sep 2004 were used for susceptibity testing. Susceptibility to lidocaine, thrombin, and epinephrine were tested according to the National Committee for Clinical Laboratory Standards. Result : MIC_(50) and MIC_(90) of lidocaine for S. aureus, S. pneumoniae, P. aeruginosa were all 20,000 ㎍/mL and that for K. pneumoniae were 10,000 ㎍/mL. MIC_(50) and MIC_(90) of thrombin for both S. aureus and P. aeruginosa was 500 IU/mL and above 500 IU/mL, respectively; that for K. pneumoniae were all above 500 IU/mL and for S. pneumoniae they were 125 IU/mL, MIC_(50) and MIC_(90) of epinephrine for K. pneumoniae and S. pneumoniae were above 500 ㎍/mL; that for S. aureus and P. aeruginosa were 500 ㎍/mL. Conclusion : We observed possible antimicrobial effect of lidocaine, thrombin, and epinephrine in vitro against pathogens such as S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa, which are common respiratory microorganisms. The use of these agants could affect the result of bacterial culture.

한국 고등학교 영재 학생들의 성별과 전공에 따른 과민흥분성에 대한 프로파일

Jeong hwa Moon,Diane Montgomery 한국영재학회 2005 영재교육연구 Vol.15 No.1

발달 잠재력과 관련된 개념으로서 과민흥분성(OE)은 미국 학생들의 경우 지능, 성별, 학교 프로그램에의 연류, 그리고 예술적 관심에서 차이를 보였다. 사람들이 정서적 성장을 위한 발달 잠재력을 경험하는 과민흥분성은 다섯 가지 방법으로 설명할 수 있는데, 이는 정서적,지적, 상상적, 감각적, 그리고 정신운동성이다. 미국에서 수행된 연구 외에 영재아 그룹의 프로파일에 대해서는 알려진 것이 거의 없다. 한국 학생들의 정서적 필요를 보다 잘 이해하기 위해서, 본 연구는 수 학과 과학, 예술, 그리고 외국어라는 상이한 학습 영역의 네 고등학교에 다니는 학생들의 과민흥분성 프로파일을 알아보는 것을 목적으로 한다. 341명의 학생들에게 과민흥분성 설문지로 검사를 실시한 후 통계적 차이를 알 아보기 위해 MANOVA가 사용되었다. 정신운동, 감각적, 상상적 영역에서는 예술 학교 학생들이 가장 높았으며, 지적 영역은 과학고등학교 학생들이, 정서적 영역 은 외국어 고등학교 학생들이 가장 높았다. 학교들 간에 통계적으로 의미 있는 차 이를 보였다. 각각의 전공 사이에도 역시 통계적으로 의미 있는 차이를 보였다. 정신 운동에서는 무용 전공의 학생들이, 감각적,상상적, 정서적 에서는 드라마 전 공의 학생들이, 그리고 지적에서는 과학 전공 학생들이 각각 가장 높은 점수를 보 였다. 또한, 정신운동, 상상적, 지적 영역은 남학생들이 높았고, 반대로 감각적, 정 서적 영역에서는 여학생들이 남학생보다 높았다. Overexcitaility (OE) as a concept that is related to developmental potential, has been shown to differ by intelligence, gender, involvement in school programs and artistic interest in American populations of students. Overexitability, used to describe the five ways that people might experience developmental potential for emotional growth, are emotional, intellectual, imaginational, sensual, and psychomotor. Little is known about the profiles of groups of gifted learners outside of studies conducted in the United States. In order to better understand the emotional needs of Korean students, the purpose of this study was to determine the overexcitability profiles of students enrolled in four high schools, each with a different domain focus: math and sciences, visual and performing arts, and foreign languages. 341 subjects of this study completed the Overexcitability Questionnaire II. Multivariate Analysis of Variance (MANOVA) was conducted to determine statistical differences. The results showed that Mean scores of psychomotor, sensual and imaginational are highest in the Art High School, intellectual is highest in the Science High School and emotional is highest in the Foreign Language High School. There were significant differences among the schools. Each major also showed significant difference. The results showed that mean score of psychomotor is highest in the Dance major, sensual, imaginational and emotional are highest in the Drama majore and intellectual is highest in the Science major. The results showed that the mean scores of psychomotor, imaginational and intellectual are higher in the male students than female students. On the other hand the mean scores of sensual and emotional are higher in the femal students than in the male students.

Topology Conversions of Non-Interpenetrated Metal–Organic Frameworks to Doubly Interpenetrated Metal–Organic Frameworks

Jeong, Seok,Kim, Dongwook,Park, Jeongin,Shin, Sunyoung,Kim, Hyehyun,Jeong, Gyoung Hwa,Moon, Dohyun,Moon, Hoi Ri,Lah, Myoung Soo American Chemical Society 2017 Chemistry of materials Vol.29 No.9

<P>Non-interpenetrated three-dimensional (3D) metal-organic frameworks (MOFs) with both an interpenetration-favorable (3,5)-c hms topology and an interpenetration-unfavorable (3,5)-c gra topology are converted to doubly interpenetrated analogues with hmsc topology by thermal treatment, even in the absence of solvent. Depending on the conversion temperature and the properties of the pillaring ligand in the non-interpenetrated 3D MOF, which is based on two-dimensional sheets with 3-c hcb topology pillared by neutral ditopic linkers, the pillaring ligands in the interpenetrated MOFs produced are partially removed during the thermal conversions, leading to interpenetrated MOFs that simultaneously contain both micro- and mesopores.</P>