중학교 과학 교과서에 제시된 철과 황의 혼합물과 화합물 성질 비교 실험의 분석 및 개선

박경희,강성주,Park, Kyong-Hee,Kang, Seong-Joo 대한화학회 2007 대한화학회지 Vol.51 No.1

이 연구의 목적은 중학교 과학 교과서에 제시된 ‘철과 황의 혼합물과 화합물 성질 비교 실험'의 문제점을 분석하고 개선책을 제시하는 것이다. 이를 위하여 9학년 과학 교과서에 제시된 실험 방법을 분석하고, 교과서에 제시된 실험 방법에 따라 중학교 과학을 담당하고 있는 40명의 현직 교사에게 실험을 수행하게 한 후 문제점을 분석하였다. 자극적인 기체 발생으로 인한 거부감, 자성 비교를 이용한 혼합물과 화합물의 구별 실패 등의 문제점이 개선된 개선 실험과 대안실험을 제시하였다. 제안된 2가지 실험을 10명의 현직 화학 교사와 S중학교 3학년 60명에게 적용한 결과, 제안된 실험은 혼합물과 화합물의 특성 비교에 적합하며 개념 이해에 도움이 된다고 응답하였다. The purposes of this study were to analyze problems in the experiments for comparing properties of a mixture with a compound of iron and sulfur and then to suggest the improved experiments. For this study, the experimental methods in 9th science textbooks described were analyzed and middle school science teachers were asked to conduct the experiment according to the process of the textbook and to point problems of the experiment. Two alternative experiments, which improves the problems of the toxic and provocative experiment and of distinction between a mixture and a compound by magnetic properties, were proposed. The two experiments were applied to the 10 science teachers and 60 students from a “S” middle school. They responded that the experiments were suitable for comparing properties of a mixture and a compound and helpful to understand the concept.

교재곡 개발을 위한 메나리조 민요의 계열화 방안 연구

박경희(Park Kyong-Hee) 한국국악교육학회 2006 국악교육 Vol.24 No.-

Menari mode folksongs of eastern area of Korea that include Hamkyeong-do, Gangwon-do, Gyeongsangbuk-do and Gyeongsangnam-do have peculiar musical attributes. There are various folksongs that reflect life and emotion of our ancestors and geographical, industrial, cultural environment in Menari mode folksongs. There are only a few of popular folksongs in music textbooks for classroom and they are appeared repeatedly in primary school and secondary school, in addition their arrangement is not systematical. So, development of textbook songs and new arrangement of them are required. This study analyzes Menari mode folksongs that are spreaded widely centered eastern region of Korea and presents a plan of systematized arrangement of them. Followings are the musical properties of the folk songs of Menari mode in this region. First, concerning Jangdans(장단), variety of Jangdan such as Jajinmori(자진모리), Jungjungmori(중중모리), Gutgeori(굿거리), Eonmori(엇모리), Jungmori(중모리) and free beats style are used. Most of songs come under Jangdans of groups of 4 beats of 3 divisions style, especially traditional children’s songs usually use Jajinmori. Times and seasons songs, and work songs usually use Jungjungmori and Gutgeori. Work song for weeding a rice field and dry field’ and ‘Eosayong(어사용)’, have free beats style. Second, in melodies, descending procession such as re'-do'-la, la-sol-mi are prominent. On occasion of ascending procession, mi-la, mi-la-do' are used in most cases. There are various starting notes, for example mi, la, do', re'. Concerning finishing notes, most cases are mi or la, and in few cases are sol or do'. Third, in view of Sigimsae, at the procession of re'-do' there usually appear Kkeongneum Eum(꺽는 음)and Toeseong(퇴성-흘러내리는 음). In some folksongs of Geongsangnam-do, there appear Kkeongneun Bum and Toeseong on front note at the procession of do'-si. Sigimsae is expressed variously in Gutgeori which is slow relatively and free style beats of Jangdan. Fourth, through composed form is used usually in children’s songs and work songs sung alone. And call & responsorial form is used usually in songs for many cooperative workmen and also exchange form is sometimes used. There are many types of the call & responsorial form according to a starting part, Jangdan of part and kind of responsorial part and considering the special case, call part and responsorial part are overlapped. Considering outcomes analyzed above, folksongs are systematized in each views of Jangdan and melody deliberately. They are graded considering tempo and structure in case of Jangdan, tonal structure and Sigimsae in case of melody. And integrating steps of Jangdan and melody, ten grades are established and example songs according to grades are presented. Jangdan is graded from fast one to slow one and is arranged concerning structure of Jangdan. Tonal structure is graded from narrow range to wide one. Range which is under one octave belong 1~3 steps and that is graded concerning the number of notes and the width of range. And range which is one octave and over belong 4~7 steps. At 5th step, re' is included. Sigimsae is graded concerning level of the expression in order of Yoseong(요성-떠는 음), Toeseong(퇴성-흘러 내리는 음), Kkeongneun Eum(꺽는 음), Chuseong(추성-밀어 올리는 음), Gamneun Eum(감는 음). So, 9 steps are established. Synthesizing steps of each component mentioned above, ten grades are established. In each grades there belong certain steps of each components and example songs suitable to these steps are presented. I expect singing, playing musical instrument and composition of folksongs educated systematically in schools based on this study. And I hope folksongs in modes of Susimga, Gyeong and Yukjabaegi also developed and systematized as well as folksongs in Menari mode, so the properties of folksongs can be taught in their fullness.

적혈구 침강속도 자동측정기기안 TEST 1의 유용성 평가

박경희 ( Kyong Hee Park ),조주연 ( Ju Youn Cho ),조창호 ( Chang Ho Cho ),서헌석 ( Hun Suk Suh ) 대한임상검사과학회 2001 대한임상검사과학회지(KJCLS) Vol.33 No.2

Although the erythrocyte sedimentation rate (ESR) is a diagnostically nonspecific test, it is widely used for monitoring of inflammatory disorders. Conventional methods have disadvantages of difficu1ty in standardization and quality control. Thus we compared automatic TEST 1 system with the conventional Westergren method and Ves-Matic 60 for correlation with 205 patients. The results are summarized as follows l. The TEST 1 showed acceptable reproducibility(CV: <10.0 %). 2. The correlation between TEST 1 and conventional Westergren method showed good correlation(r=0.9 10, P<0.001). 3. The correlation between TEST 1 and Ves-Matic 60 showed good correlation(r=0.918, P<0.001). We conclude that TEST 1 is a suitable automated ESR analyzer that is accurate and easy to use for ESR

농촌지역 국제결혼 이주여성의 결혼만족도에 영향을 미치는 요인

송미영(Song, Mi-Young),박경희(Park, Kyong-Hee) 한국지역사회복지학회 2008 한국지역사회복지학 Vol.0 No.26

추출조건이 노니 부정근에 함유된 rubiadin의 추출 효율에 미치는 영향

김명기(Myong-Ki Kim),정철승(Cheol-Seung Jeong),신용국(Yong-Kook Shin),박경희(Kyong-Hee Park),이운장(Woon-Jang Lee),이은정(Eun-Jung Lee),백기엽(Kee-Yoeup Paek) 한국원예학회 2010 원예과학기술지 Vol.28 No.4

노니(Morinda citrifolia) 부정근의 주요 성분인 rubiadin은 간 보호 효과가 있어 제약산업에서 높은 가치가 있다. 노니 부정근의 주요 유효성분인 rubiadin의 효율적인 추출조건을 규명하고자 용매 종류, 물과 메탄올의 비율(물, 20%, 40%, 60%, 80%, 100%), 추출시간 및 추출방법을 달리하여 추출하였다. 노니 부정근에서의 rubiadin의 함량분석은 HPLC이용 분석조건을 확립하였으며, C-18 컬럼을 사용하여 280nm에서 메탄올과 물로 농도구배를 주어 분석하였다. 용매별추출효율은 메탄올(0.08%)>에탄올(0.05%)>아세토니트릴(0.03%)>아세톤(0.02%) 및 메틸렌클로라이드(0.02%)순으로 증가하였다. 메탄올에 물의 혼합 비율을 달리하여 초음파 추출기로 1시간 동안 추출한 결과 60% 메탄올(0.21%)>80% 메탄올(0.13%)>100% 메탄올(0.07%) 및 40% 메탄올(0.07%) 순으로 효과적이었으며, 환류냉각 추출기로 2시간 동안 추출한 결과 60% 메탄올(0.21%)>40% 메탄올(0.17%)>80% 메탄올(0.14%) 용매처리구 순으로 효율이 좋았다. 추출방법 및 추출시간에 따른 rubiadin의 추출 효율을 비교하기 위해 환류냉각추출 및 초음파추출, 진탕추출법으로 추출하였다. 추출방법 및 추출시간에 따른 rubiadin의 추출효율은 초음파추출 및 진탕추출에서 각각 8 및 24시간동안 추출했을 때 효율적이었다. Rubiadin, a major compound of noni (Morinda citrifolia) adventitious root, is highly valued in pharmaceutical industry due to hepatoprotective activity. To dissect rubiadin’s effective extraction condition, extraction process of noni adventitious roots was performed with different solvent types, ratio of water to methanol (water, 20, 40, 60, 80, and 100% of methanol), extraction time, and extraction method. In contrast, we also developed a reverse- phase HPLC assay method to determine rubiadin from noni adventitious roots. The HPLC assay of rubiadin was performed by C-18 column using a gradient solvent system of methanol and water with UV detector at 280 ㎚. The extraction efficiency of different types of solvents were increased in order of methanol (0.08%)>ethanol (0.05%)>acetonitrile (0.03%)>acetone (0.02%) and methylene chloride (0.02%). The results of rubiadin extraction using different solvents showed that 1 hour of ultrasonic extraction was effective in order of 60% methanol (0.21%)>80% methanol (0.13%)>100% methanol (0.07%), 40% methanol (0.07%) and 2 hours of reflux extraction was effective in order of 60% methanol (0.21%)>40% methanol (0.17%)>80% methanol (0.14%). To compare the extraction efficiency of rubiadin according to the extraction methods and time for high rubiadin content, the extracts of rubiadin in noni adventitious roots were isolated with the methods of ultrasonic extraction, shaking extraction and reflux extraction. Rubiadin extracted from the methods of ultrasonic waves and shaking displayed the highest contents at 8 and 24 hours, respectively.

건강 신생아의 모세혈액에 대한 혈액학적 고찰

조창호 ( Chang Ho Cho ),이종훈 ( Jong Hoon Lee ),박경희 ( Kyong Hee Park ),조주연 ( Ju Youn Cho ) 대한임상병리사협회 2001 임상혈액검사학회 발표자료집 Vol.6 No.1

건강 신생아 115명(남 : 60명, 여 : 55명)을 대상으로 발뒤꿈치에서 모세 혈액을 채취하여 Coulter Counter Model GEN-S를 이용하여 얻은 적혈구, 혈색소, 적혈구 용적비, 적혈구 지수, 백혈구, 혈소판, 혈소판 지수, 망상적혈구 및 망상적혈구 지수의 성적을 요약하면 다음과 같다. 1. 적혈구수는 5.04±0.53×10(6)/㎣(남 : 4.97±0.53, 여 : 5.10±0.52), 혈색소는 17.8±1.8gm/dl(남 : 17.5±1.7, 여 : 18.1±1.7), 적혈구 용적비는 53.5±5.3 %(남 : 52.6±5.5, 여 : 54.4±5.0) 이었다. 2. 평균 적혈구용적은 106.3±3.4fl (남 : 105.9±3.6, 여 : 106.7±3.3), 평균 적혈구혈색소량은 35.4±1.5pg(남 : 35.2±1.5, 여 : 35.6±1.5), 평균 적혈구혈색소농도는 33.3±1.1%(남 : 33.2±0.9, 여 : 33.3±1.2), 적혈구 분포폭은 15.9±0.8%(남 : 15.9±0.8, 여 : 15.9±0.9)이었다. 3. 백혈구수는 20.2±7.7×10(3)/㎣(남 : 18.1±6.5, 여 : 22.2±8.3)이였으며, 여자가 남자보다 통계학적으로 유의하게 높았다. 4. 혈소판수는 241.1±63.3×10(3)/㎣(남 : 244.4±62.1, 여 : 237.9±64.9)이었다. 5. 평균 혈소판용적은 8.1 ±0.5fl(남 : 8.0±0.6, 여 : 8.1±0.5), 혈소판 용적비는 0.186±0.05 %(남 : 0.186±0.05, 여 : 0.187±0.05), 혈소판 분포폭은 16.0±0.8%(남 : 16.0±0.8, 여 : 16.0 ±0.8)이었다. 6. 망상적혈구수는 2.83±1.08%(남 : 2.74±1.05, 여 : 2.93±1.12)이었다. 7. 평균망상적혈구용적은 135.3±13.6 fl(남 : 133.6±15.3, 여 : 137.0±11.2), 미성숙 망상적혈구 분획은 0.44±0.10 (남 :0.44±0.10, 여 : 0.45±0.10), HLR은 1.33±0.65(남 : 1.29±0.64, 여 : 1.37±0.67)이었다. 8. 망상적혈구수가 증가할수록 HLR, 미성숙 망상적혈구분획 및 평균 망상적혈구용적도 증가하는 양의 상관관계를 보였다. To hematologic findings of capillary blood in healthy newborn infants population, we measured the WBC, RBC, Hgb, Hct, MCV, MCH, MCHC, RDW(Red cell Distribution Width), Platelet, MPV(Mean Platelet Volume), PCT(Platlet-crit), PDW(Platelet Distribution Width), Reticulocyte, MRV(Mean Reticulocyte Volume), IRF(Immature Reticulocyte Fraction) and HLR(High Light Scatter Reticulocyte), determined by Coulter Counter model GEN-S in 115(M : 60, F : 55) persons. The results were summarized as follows : 1. The mean value of RBC count, Hgb and Hct were 5.04±0.53 ×10(6)/㎣(M : 4.97±0.53, F : 5.10±0.52), 17.8±1.8 gm/dl (M : 17.5±1.7, F : 18.1±1.7) and 53.5±5.3 %(M : 52.6±5.5, F : 54.4±5.0), respectively. 2. The mean value of MCV, MCH, MCHC and RDW were 106.3±3.4 fl(M : 105.9±3.6, F: 106.7±3.3), 35.4±1.5 pg(M : 35.2±1.5, F : 35.6±1.5), 33.3±1.1 %(M : 33.2±0.9, F : 33.3± 1.2) and 15.9±0.8 %(M : 15.9±0.8, F : 15.9±0.9), respectively. 3. The mean value of WBC count was 20.2 ± 7.7 ×10(3)/㎣(M : 18.1 ± 6.5, F : 22.2±8.3), and the value of female was significantly higher. 4. The mean value of platelet count was 241.1±63.3 ×10(3)/㎣(남 : 244.4±62.1, 여 : 237.9±64.9). 5. The mean value of MPV, PCT and PDW were 8.1±0.5 fl(M : 8.0±0.6, F : 8.1±0.5), 0.186±0.05 %(M : 0.186±0.05, F : 0.187±0.05) and 16.0±0.8 %(남 : 16.0±0.8, 여 : 16.0±0.8), respectively. 6. The mean value of reticulocyte count was 2.83±1.08 %(M : 2.74±1.05, F : 2.93±1.12). 7. The mean value of MRV, IRF and HLR were 135.3±13.6 fl(M : 133.6±15.3, F : 137.0±11.2), 0.44±0.10(M : 0.44±0.10, F : 0.45±0.10) and 1.33±0.65 (M : 1.29±0.64, F : 1.37±0.67), respectively. 8. There was linear relation of HLR, IRF and MRV to reticulocyte count(P <0.01).

노령층의 말초혈액 참고치에 대한 고찰

조창호 ( Chang Ho Cho ),김창일 ( Chang Il Kim ),박경희 ( Kyong Hee Park ),이숙정 ( Suk Jeong Lee ),조주연 ( Ju Youn Cho ) 대한임상병리사협회 1999 임상혈액검사학회 발표자료집 Vol.5 No.1

1998년 3월부터 1998년 10월까지 60세 이상 건강한 노령층 228명(남:110명, 여:118명)을 대상으로 Coulter Counter Model GEN - S를 이용하여 얻은 노령층의 말초혈액 참고범위는 다음과 같다. 1. 적혈구 수는 남자 3.70 - 5.18 ×10(6)/㎣, 여자 3.43 - 4.64 ×10(6)/㎣ 이었다. 2. 혈색소는 남자 12.2 - 16.5 gm/dL, 여자 11.1-14.4 gm/dL 이었다. 3. 적혈구용적 백분율은 35.5 - 49.0 %, 여자 32.4 - 42.1% 이었다. 4. MCV, MCH, MCHC는 남자가 각각 88.1 - 102.2 fl, 29.8 - 35.0 pg, 32.9 -35.1 %, 여자는 각각 85.5 - 99.5 fl, 28.9 - 34.2 pg, 32.7 - 35.4 % 이었다. 5. 적혈구 분포폭은 남자 11.7-14.0, 여자 11.4 - 13.7 이었다. 6. 혈소판수 및 혈소판 용적비는 남자가 120 - 304×10(3)/㎣, 0.100-0.235 %, 여자는 138 - 317 × 10(3)/㎣, 0.113-0.250 이었다. 7. 평균 혈소판용적 및 혈소판 분포폭은 남자가 7.0 -9.5 fl, 14.7 - 16.4, 여자는 7.1 - 9.8 fl, 14.6 - 16.2 이었다. 8. 백혈구 수는 남자가 4.3 - 9.7 × 10(3)/㎣, 여자는 4.1 - 9.6 × 10(3)/㎣ 이었다. 9. 백혈구 백분율 계산은 호중구, 호산구, 호염기구, 림프구 및 단구는 각각 37.1 - 72.3%, 0.4 - 7.3%, 0.1-1.9%, 19.4-51.4%, 3.5-9.7% 이었다. To establish the hematological reference values in healthy geriatric population, we measured the RBC count, Hgb, Hct, MCV, MCH, MCHC, RDW, Platelet count, Platelet-crit, MPV, PDW, WBC count and Differential count, determined by Coulter Counter model GEN-S in 228(M : 110, F : 118) persons over 60 years. The results were summarized as follows : 1. Reference value of RBC count: 3.70~5.18×10(6)/㎣ in male, 3.43~4.64×10(6)/㎣ in female. 2. Reference value of Hgb : 12.2~16.5 gm/dL in male, 11.1~14.4 gm/dL in female. 3. Reference value of Hct : 35.5~49.0 % in male, 32.4~42.1 % in female. 4. Reference value of MCV : 88.1~102.2 fl in male, 85.5~99.5 fl in female. 5. Reference value of MCH : 29.8~35.0 pg in male, 28.9~34.2 pg in female. 6. Reference value of MCHC : 32.9~35.1 % in male, 32.7~35.4 % in female. 7. Reference value of RDW : 11.7~14.0 in male, 11.4~13.7 in female. 8.

CD55, CD59 결핍에 의한 발작성 야간 혈색소뇨종 2례

조창호 ( Chang Ho Cho ),김창일 ( Chang Il Kim ),박경희 ( Kyong Hee Park ),이숙정 ( Suk Jeong Lee ),박은주 ( Eun Ju Park ) 대한임상검사과학회 1998 대한임상검사과학회지(KJCLS) Vol.30 No.3

Paroxymal nocturnal hemoglobinuria(PNH) is a rare, acquired hematologic disease characterized by marrow hypoplasia, pancytopenia, recurrent venous thrombosis and chronic intravascular hemolysis. This disease shows marrow hypoplasia, during which a somatic mutation in a hematopoietic stem cell leads to an abnormal cell clone with deficient or absent membrane glycosylphosphatidylinositoHGPI) anchor. In the disease, clone of abnonnal, correlerrent-sensitive blood cells(RBCs, platelets, granulocytes, lymphocytes and monocytes) coexist with normal blood cells(chimerism), We report two cases of PNH in all third decade of femal. Two cases with PNH was identified through positive Ham``s test and sucrose lysis test. GPI-anchored proteins CD55 and CD59 were studied by flow cytorretry, Case 1 showed slightly deficient CD55 on RBCs, severe deficient CD55 on neutrophile, CD59 on RBCs and neutrophils. Case 2 results nearly normal CD55 on RBCs and neutrophils, but severe deficient CD59 on RBCs and neutrophils. Immunophenotypic analysis of expression of GPI -anchored proteins is replacing the Ham``s test as the standard diagnostic assay for PNH Due to its relatively high sensitivity and specificity, it is particularly helpful in the early stages of disease, or when there is a small numbers of GPI -deficient cells present and also in quantitation of PNH type I, II, III RBCs. In addition, with the recent commercial availability of CL69 analysis by flow cytometry, use of the Ham``s test as a diagnostic assay is no longer recommended.

링 예약 알고리즘을 이용한 ATM 스위치

주우석,박경희,유승열,최병석 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

We propose a new architecture of multicast ATM switch which has input and output buffers and uses Multicast Ring Reservation Algorithm to resolve output port contention. This new algorithm eliminates internal cell loss due to contention, and reduces the hardware complexity. We can dynamically control the number of cells routed to a specific output port during one cell time with this contention resolution algorithm. The computer simulation is performed under bursty traffic condition to show the performance of this proposed multicast ATM switch.