• 제목/요약/키워드: $InBO_3$

검색결과 6,126건 처리시간 0.031초

δ Scuti형 변광성 BO Lyn의 근적외선 광도곡선 분석 (An Analysis of Near-infrared Light Curves of δ Scuti Variable BO Lyn)

  • 임지혜;손정주
    • 한국지구과학회지
    • /
    • 제37권7호
    • /
    • pp.389-397
    • /
    • 2016
  • ${\delta}$ Scuti형 변광성 BO Lyn의 파장에 따른 광도곡선 차이를 알아보기 위해서 보현산천문대의 1.8m 반사망원경과 적외선 검출기 KASINICS를 이용한 측광 관측을 수행하였다. 2011년 3월 26일부터 4월 1일까지 총 7일간의 관측 자료로 J, H, Ks필터 광도곡선을 얻어 기존에 보고된 V필터에서의 광도곡선과 비교하여 주기, 극대점, 진폭, 형태에 대한 차이를 알아보았다. 적외선 광도곡선의 주기 분석 결과 단일 주파수해 $f_1=10.712cycle/day$, 주기$P=0.09335{\pm}0.00002days$의 값을 얻었으며, 파장에 따른 주기의 차이는 나타나지 않았다. 적외선에서는 $2f_1$에 해당하는 주파수가 검출되었는데, 이는 고진폭 ${\delta}$ Scuti형 변광성의 특징인 비대칭적인 광도곡선의 형태를 잘 설명해준다. 극대점의 위치를 비교한 결과 계산된 V필터의 예상 극대점보다 관측된 적외선 극대점이 전체 주기의 약 0.3에 해당하는 만큼 더 늦게 나타났다. 진폭은 ${\Delta}J/{\Delta}V=0.328$, ${\Delta}H/{\Delta}V=0.216$, ${\Delta}Ks/{\Delta}V=0.211$로 파장이 길어질수록 변광의 폭이 더 작게 나타났다. 파장에 따른 극대점의 지연과 변광폭의 차이는 맥동변광성의 밝기 변화가 주로 온도변화에 기인하기 때문인 것으로 여겨진다.

동의보감(東醫寶鑑)의 심종요통(十種腰痛)에 근거(根據)한 요통환자(腰痛患者)의 임상적(臨床的) 연구(硏究) (A Clinical Study about Low Back Pain Patients Based on 10 Classes Lumbago in Dong-Eui-Bo-Kham)

  • 염승철;이길승;김성철;이건목
    • Journal of Acupuncture Research
    • /
    • 제22권4호
    • /
    • pp.95-111
    • /
    • 2005
  • Objectives : The analysis of prognosis about lumbago classes is important for low back patients. This study was designed to show the clinical significance about lowback pain patients based on 10 classes lumbago ill Dong-Eui-Bo-Kham. Methods : To analyze classify 80 patients who had received the hospital treatment for low back pain, they were classified according to 10 classes lumbago in Dong-Eui-Bo-Kham. To estimate the efficacy of oriental medical treatment, we used Quardruple Visual Analog Scale (QVAS). Results & Conclusion :1. According To 10 classes lumbago in Dong-Eui-Bo-Kham, the largest group of lumbago was due to muscle strain in 30(37.5%) cases, the next was due to wind pathogen group in 18(22.5%) cases, due to blood stasis group in 16(20%), due to Kidney deficiency by 12(15.0%), due to retention of food group by 2(2.5%), the lumbago due to humidity pathogen group by 2(2.5%) in order. 2. By the results which puts out the statistics in lumbago classes on a objectivity treatment record, the Lumbago due to blood stasis, the lumbago due to kidney deficiency, the lumbago due to muscle strain, the lumbago due to wind pathogen, the lumbago due to retention of food, the lumbago due to humidity pathogen showed $3.6({\pm}0.68),\;2.83({\pm}0.84),\;3.13({\pm}0.78),\;2.67{\pm}(0.77),\;3.00,\;3.00$. 3. By the results which puts out the statistics in lumbago classes as a subjectivity treatment record, the Lumbago due to blood stasis, the lumbago due to Kidney deficiency, the lumbago due to muscle strain, the lumbago due to wind pathogen, the lumbago due to retention of food, the lumbago due to humidity pathogen changed from $8.19{{\pm}1.68),\;8.58{\pm}(1.08),\;7.80{\pm}(2.28),\;8.67({\pm}1.46),\;9.00({\pm}1.41),\;8.50({\pm}0.71)\;to\;2.81({\pm}1.91),\;4.17({\pm}2.52),\;2.43({\pm}1.63),\;3.00({\pm}1.85),\;2.00,\;3.00$.

  • PDF

$NeuBo153^{\circledR}$의 중풍동물 모델에 대한 뇌신경 보호효과 (Neuroprotective Effect of $NeuBo153^{\circledR}$ on Transient Focal Cerebral Ischemia in Rats)

  • 부영민;오세남;황만기;정진희;이대희;박영미;김미연;김진화;김호철
    • 대한본초학회지
    • /
    • 제21권2호
    • /
    • pp.151-158
    • /
    • 2006
  • Objectives : The purpose of the present study is to observe the neuroprotective effect of the $NeuBo153^{\circledR}$ on transient focal cerebral ischemia in rats. Methods : $NeuBo153^{\circledR}$ was made by mixing the herbs, mainly the root of Panax ginseng, the root of Rehmannia glutinosa and Poria cocos, the stem bark of Acanthopanax senticosus, the root of Scutellaria baicalensis and Mel, and heating for 96 hours. Transient Focal cerebral ischemia (2 h of ischemia, 22 h of reperfusion) was induced by intraluminal suture method with SD rats. Sensory motor function was tested by rotarod test, prehensile traction test, beam balance test and foot fault test at 24 h after ischemia. The brain slices were stained by 2% 2, 3, 5-triphenyltetrazolium chloride and the infarct volume was measured by graphic analyzer at 24 h after ischemia. Results : $NeuBo153^{\circledR}$ treated group did not show significant differences compared with vehicle treated group in body temperature. Oral administration of $NeuBo153^{\circledR}$ reduced brain infarct volume by 29.7% compared with vehicle treated group. $NeuBo153^{\circledR}$ also showed protective effects on sensory motor functional deficits. Conclusion : $NeuBo153^{\circledR}$ treatment reduced brain damage and improved functional deficits induced by MCAo. It showed neuroprotective effects even when treatment was relayed 2 h after injury. Further research is required to evaluating long term functional recovery am accurate therapeutic range and mechanisms.

  • PDF

토종닭과 실용계에서 TYR 및 MC1R 유전자의 변이 분석 (Investigation of TYR and MC1R polymorphisms in Korean native chickens and the commercial chickens)

  • 허강녕;추효준;서보영;박미나;정기철;황보종;김학규;홍의철;서옥석;강보석
    • 농업과학연구
    • /
    • 제38권3호
    • /
    • pp.465-471
    • /
    • 2011
  • The commercial Korean native chickens (WR_CC) was developed by crossing a few native chicken breeds in Korea. In order to investigate the breed identification markers, SNPs from TYR gene and MC1R gene, which are associated with skin and feather colors respectively, were initially identified. In case of 3 identified SNPs in the TYR gene, yellow shank color was identified in Loss, Harvard, AA, RIR and CC, which have the fixed SNPs in most of the animals. On the other hand, SNP variations were observed in KNC_RB, C_B, WR_CC and HH_CC, which have the black, yellow and mixed color with black and yellow shank colors. Also, the investigation of 3 SNPs in the MC1R gene indicated that there were associations between shank and feather colors in RIR, SF, KNC_B, C_B and RIR. However, these results are not consistent among breeds. These SNP type inconsistencies within breeds suggested that the selection was performed based on the phenotypes, which is not include the genotype information. Thus, selection based on genetic information is required in the future.

Cervical Cancer Screening and Analysis of Potential Risk Factors in 43,567 Women in Zhongshan, China

  • Wang, Ying;Yu, Yan-Hong;Shen, Keng;Xiao, Lin;Luan, Feng;Mi, Xian-Jun;Zhang, Xiao-Min;Fu, Li-Hua;Chen, Ang;Huang, Xiang
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제15권2호
    • /
    • pp.671-676
    • /
    • 2014
  • Objective: The objective of this study was to establish a program model for use in wide-spread cervical cancer screening. :Methods: Cervical cancer screening was conducted in Zhongshan city in Guangdong province, China through a coordinated network of multiple institutes and hospitals. A total of 43,567 women, 35 to 59 years of age, were screened during regular gynecological examinations using the liquid-based ThinPrep cytology test (TCT). Patients who tested positive were recalled for further treatment. Results: The TCT-positive rate was 3.17%, and 63.4% of these patients returned for follow-up. Pathology results were positive for 30.5% of the recalled women. Women who were younger than 50 years of age, urban dwelling, low-income, had a history of cervical disease, began having sex before 20 years of age, or had sex during menstruation, were at elevated risk for a positive TCT test. The recall rate was lower in women older than 50 years of age, urban dwelling, poorly educated, and who began having sex early. Ahigher recall rate was found in women 35 years of age and younger, urban dwelling, women who first had sex after 24 years of age, and women who had sex during menstruation. The positive pathology rate was higher in urban women 50 years of age and younger and women who tested positive for human papillomavirus. Conclusion: An effective model for large-scale cervical cancer screening was successfully established. These results suggest that improvements are needed in basic education regarding cervical cancer screening for young and poorly educated women. Improved outreach for follow-up is also necessary to effectively control cervical cancer.

2가 금속산화물 첨가에 따른 납붕산염유리의 구조 및 물성 (Structure and Properties in the $PbO-B_2O_3$ Glass System with Addition of Divalent Metallic Oxides)

  • 이찬수;김철영
    • 한국세라믹학회지
    • /
    • 제20권3호
    • /
    • pp.236-242
    • /
    • 1983
  • The purpose of present study is to find the structures physical properties and their inter-relations in the system of (60-x) PbO.xMO.$40B_2O_3$ glasses where MO represents for ZnO and CdO. The experiments such as differential thermal analysis infrared spectral analysis X-ray diffraction analysis density and thermal expansion measurements have been done. From infrared spectral analysis the structural units of glasses and the corresponding crystallized glasses were com-posed of $BO_3$ triangles and $BO_4$ tetrahedra. These basic units found in $PbO-B_2O_3$ binary glass system did not charge even though the divalent metallic oxides were substituted for PbO. The structures of these ternary glasses were more coalescenced than $PbO-B_2O_3$ binary glass system. This fact was supported bydecrease in thermal expansion coeffici-ent and molar volume with substitution of divalent metallic oxide for PbO. Crystalline phases obtained from the heat treatment of the $PbO-ZnO-B_2O_3$ glasses were 4PbO.2ZnO.$5B_2O_3$ PbO.2ZnO.$B_2O_3$ and unknown phases.

  • PDF

정간보(井間譜) 교육 프로그램 (Research on Jeongganbo Education Program)

  • 한미례;정낙현
    • 지역과문화
    • /
    • 제5권1호
    • /
    • pp.65-84
    • /
    • 2018
  • 본 연구의 목적은 교육 콘텐츠로써 정간보(井間譜)를 효과적으로 교육하기 위한 교육 프로그램 개발에 있다. 정간보는 세종 때에 만들어진 우리 고유의 악보로, 우리 음악 기초에 있어 매우 중요한 역할을 한다. 정간보 교육은 초등3~4학년 통합음악과정에서 비교적 간단한 형태로 시작되어, 초등 5~6 통합음악과정에서는 정간보의 형태가 구체화 된다. 이러한 정간보 교육의 중요성을 인식하고 처음 접하는 단계의 교육프로그램을 개발하고자 한다. 초등 3학년 학습자를 대상으로 전래놀이를 그 도구로 삼아 교육 프로그램을 제안한다. 프로그램은 1단계 교구 만들기, 2단계 교구를 활용한 장단의 부호 이해, 3단계 전통 놀이를 통한 놀이로 장단을 익히는 과정을 거친다. 총 2차시 프로그램으로 1차시에서는 기본적인 내용을 학습하고, 2차시에서는 전통놀이 사방치기를 활용하였다. 본 연구는 정간보 이해도 측면의 국악교육과 에듀테인먼트 교육 콘텐츠 개발의 의의를 동시에 가진다. 또한 지역 특성에 따라 편중되었던 국악교육프로그램을 교육현장인 학교와 연계함으로써 폭넓은 국악교육의 활성화에 기여한다.

동의보감(東醫寶鑑)을 통한 허준의 의학사상에 관한 고찰 (A study on Huh-Joon's medical thoughts in Dong-Eui-Bo-Kham)

  • 권학철;박찬국
    • 대한한의학원전학회지
    • /
    • 제6권
    • /
    • pp.89-130
    • /
    • 1993
  • Huh-joon's medical thoughts shown on his medical book of the Doog-Eui-Bo-Kham can be summerized as follows. 1. The general trend of medical science in Koryo dynasty is that much more interests were concentrated upon the books about curative means rather than upon the books about theoretical knowledge of medical science. With the development of Hyang Yak(鄕樂) (the term referring either various kinds of domestic medical stuffs such as herbs or the curative methods using those stuffs) and the writing of books on Hyang Yak, independent medical science of the nation's own was established in late Koryo dynasty. And the national medical science was continuously further developed until early Choson dynasty. Briskly-expanded mutual exchanges with China in early Choson dynasty provided Choson opportunities to import Chinese medical science and to examine it. Under this circumstances, he wrote the Dong-Eui-Bo-Kham. 2. As we look over the preface and Chip-Rae-Muo(集例文), we can find the characterstic of Doog-Eui-Bo-Kham is that the philosophical theory of Taoism was quoted in explaining the principles of his medical science and that the main idea of Naekyuog is the basis in explaining the way of curing diseases. 3. 83 kinds of medical books were quoted in the Doog-Eui-Bo-Kham. Besides, as many as 200 kinds of books including Tao-tzu's teaching books(道書), history books(史書), almanac(曆書), and Confucius' teaching books(儒家書籍) were quoted in total. Naekyuog and Eue-Hak-Ip-Mun, Dan-Kye-Sim-Bup were the most frequently quoted books among them. 4. Huh-Joon's medical thoughts about health care were like these. 1) The reason why Huh-Joon regarded the idea of health care as of great importance was that he laid much more emphasises on the preventive medicines rather than on the remedial medicines. The direct reason was that he was greatly influenced by profound knowledge of Taoist's study of discipline and who participated in the editing the books from the beginning. 2) Huh-Joon's outlook on human body started from the theory of "Unity of Heaven and Man"(天人合一論), which implied man was a kind of miniature universe. In addition to that, he largely theory of essence(精), vital force(氣), and spirit(神) which were regarded very important as the three most valuable properties in Taoism. However, he took his medical ground on practical and pragmatic idea that he did not discuss fundamental essence(元精), fundamental vital force(元氣), and fundamental spirit(元神) which were given by Heaven from the received only the theory of essence, vital force, and spirit which were acquired after birth and worked mainly on realistic activity of life. 3) Huh-loon accepted Do-In-Bup(導引法) sharply as a method to prevent and cure diseases. 5. Huh-loon's medical thoughts on remedial aspects are as 1) Naekyung was considered so important in Dong-Eui-Bo-Kham that not only each paragraph was begun with the Quotations from Nackyung but also the edited order of the content of the book the same with that of Naekyung. And differently from the former korean medical books he accepted at large and recorded the theories of the four noted physicians of the Geum-Won era(金元四大家) by Dong-Eui-Bo-Kham. 2) For the first time, Huh-Joon introduced the theory of Un-Ki (運氣論) in the Dong-Eui-Bo-Kahm. However, he accepted it as a pathological function of human body but he did not apply physical constitution, physiological function, pathological function, and remedial methods. 3) Huh-loon liked to use Hyang Yak that he recorded korean name of Hyang Yak(鄕名), places of the production(産地), the time of collecting(採取時月), and the way of drying herbs(陰陽乾正法) in the remedial method of a single medicine prescription for diseases at the end of each paragraph. By doing so, he developed, arranged, and revived Hyang Yak. 4) He believed that since the natural features of China were different from those of Korea the reasons of being attacked with its remedial methods couldn't be the same with different from Chinese medical books which primarily focused on paralysis and the injury of the cold has his own structure in his book that he founded independent science of this nation. He consulted enormous documents He discovered and wrote the theory and therefore concrete methods for diseases so that the book hadthe principles of outbreak of diseases(理), methods of cure(法), prescription(方), and a single medicine prescription(藥) and set system of medical science in a good order. By doing so, he and pragmatic development of medical science.

  • PDF

Photoluminescence Properties of $Eu^{3+}-Activated\;YCa_3(GaO)_3(BO_3)_4$ phosphor

  • Lee, Dae-Won;Kwak, Chung-Heop;Jung, Ha-Kyun
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
    • /
    • pp.1360-1363
    • /
    • 2006
  • A borate compound was adopted as new host material for $EU^{3+}$ activator. The $Eu^{3+}-doped\;YCa_3(GaO)_3(BO_3)_4$ (YCGB) phosphors were successfully synthesized. Also, their photoluminescence properties under the excitation of UV ray were measured. In the XRD patterns of the synthesized powders, most peaks were well-matched to a gaudefroyite phase. The emission of $Eu^{3+}$ in YCGB consists of a strong peak centered at 622 nm, which is attributed to $^5D_O-^7F_2$ transition of $Eu^{3+}$ and several weak peaks at near the wavelength. Optimum $Eu^{3+}$ concentration of the red phosphor under the excitation with the wavelength of 395 nm was about 75 mol%. This indicates that the red phosphor has a relatively higher critical concentration than that of the other $Eu^{3+}-doped$ phosphors. The dominant interaction character of $Eu^{3+}$ might be dipole-dipole interaction.

  • PDF

$Tb^{3+}$ 와 Eu^{3+}$로 활성화시킨${Al_3}{GdB_4}{O_{12}}$ 형광체의 발광 특성 (Photoluminance Properties of ${Al_3}{GdB_4}{O_{12}}$ Phosphors Activated by $Tb^{3+} and Eu^{3+}$)

  • 김기운;강세선;이임렬
    • 한국재료학회지
    • /
    • 제10권1호
    • /
    • pp.49-54
    • /
    • 2000
  • PDP용의 새로운 녹색 $Al_3GdB_4O_{12}:Tb^{3+} 형광체와 Al_3GdB_4O_{12}:Eu_{3+}$ 적색형광체를 제조한 후 광특성을 분석하였다. 또한 이들 형광체의 발광특성을 상용품인 $Zn_2SiO_4:Mn^{2+}$ 녹색 형광체와 $(Y,Gd)BO_3: Eu^{3+}$ 적색의 PDP 형광체와 상호 비교하였다. 형광체는 $1150^{\circ}C$에서 4시간 동안 공상 반응으로 제조하였다. 147nm의 진공자외선 조사시 $Al_3GdB_4O_{12}:Tb^{3+}$(15mol%) 녹색 형광체의 발광휘도는 상용품 $Zn_2SiO_4: Mn^{2+}$ 보다 증가하였으나 색좌표는 상대적으로 저하되었다. 한편 $Al_3GdB_4O_{12}:Eu^{3+}$(15mol%) 적색 형광체의 발광 휘도는 상용품$(Y,Gd)BO_3: Eu^{3+}$ 보다 작았으나 CIE 색좌표는 일부 개선되었다. $Al_3GdB_4O_{12}$ 형광체는 $\lambda=160nm$에서 모체 흡수에 의한 강한 여기밴드가 있으며, 진공자외선 영역에서 $Al_3GdB_4O_{12}:Tb^{3+}$ 녹색형광체의 여기강도는 $Zn_2SiO_4: Mn^{2+}$ 보다 컸으나 $Al_3GdB_4O_{12}:Eu^{3+}$ 적색 형광체의 여기강도는 $(Y,Gd)BO_3: Eu^{3+}$ 보다는 작았다.

  • PDF