상엽수확고(桑葉收穫高) 측정(測定)에 관(關)한 연구(硏究) -각형질(各形質) 가중치(加重値)(Weight)에 의(依)한 수량(收量)의 측정(測定)-

한경수 ( K. S. Han ),장권열 ( K. Y Chang ),안정준 ( J. J. Ahn ) 한국잠사학회 1969 한국잠사곤충학회지 Vol.9 No.-

상엽의 수확고를 측정하기 위하여 상엽의 수량과 높음 상관관계가 있는 형질 중 상전에서 쉽게 측정할 수 있는 기조장(X1), 기조직경(X2), 엽수(X3), 엽면적(X4)의 4개 형질을 측정하여 이들 형질의 수량에 영향하는 가중치를 다중회분방정식에 의하여 산출하여 수량을 측정할 수 있도록 여러 가지 식을 유도하였다. 1. 기조장(X1)과 기조직경(X2)을 측정하여 수량을 측정하기 위하여는 개량서반에 있어서는 y1v1=-1.15760+0.068X1+165.756X2(g) 일지뢰에 있어서는 y1v2=-221.500+1.768X1+38.152X2(g) 노상에 있어서는 y1v2=-253.826-0.116X1+289.507X(g) 수원상 4호에 있어서는 y1v4=-157.559+1.063X1+106.088X2(g)의 식에 의해서 기조장(X1)과 기조직경(X2)의 측정치를 대입하면 수량을 견적할 수 있다. 2. 기조장(X1), 기조직경(X2), 엽수(X3)의 3개 형질을 측정하여 수량을 견적하는 데는 각품종별로 각각 y2v1=-118.478-0.665X1+184.445X2+2.346X3 y2v2=217.432+2.062X3+35.668X2-1.058X3 y2v3=-206.249-0.739X1+268.08X2+2.770X3 y2v4=-153.383+0.009X1+2.024X2+0.171X3의 식에 의하여 수량을 견적할 수 있다. 3. 기조장(X1), 기조직경(X2), 엽수(X3), 엽면적(X4)의 4개 형질을 측정하고 수량을 견적하기 위하여는 각품종별로 각각 y11v1=82.567-1.283X1+15.501X2+0.640X3+3.511X4 y11v2=136.411+0.311X1+1.921X2-0.217X3+0.214X4 y11v3=150.2Z7-0.139X1+11.788X2+0.143X3+0.381X4 y11v4=160.850+0.323X1+66.076X2-0.794X3+2.614X4 등의 식에 의하여 수량을 견적할 수 있다. Various formulae for estimation of leaf production in mulberry trees were investigated and obtained. Four varieties of mulberry trees were used as the materials, and four characters, namely branch length (X, 1), branch diameter (X, 2), leaf number per branch (X, 3), and leaf area per branch (X, 4), were studies. The formulae to eatimate the leaf yield of mulberry trees are as follows: 1. Y1v1=-115.760+0.068X1+165.756X2 Y1v2=-221.500+1.768X1+38.152X2 Y1v8=-253.826-0.116X1+289.507X2 Y1v4=-157.559+1.063X1+106.088X2 where Y1v1, Y1v2, Y1v3, Y1v4, are showed the estimated yield of the each variety, namely Gaeryang souban, Ilchirye, Nosang, and Suwon Sang No. 4, respectively. X2 and X2 denote the measured values of branch length and branch diameter, respectively. 2. Y2v1=-118.478-0.665X1+184.445X2+2.346X3 Y2v2=-217.432+2.062X1+35.668X2-1.058X3 Y2v3=-206.249-0.739X1+268.08X2+2.770X3 Y2v4=-153.383+0.009X1+2.024X2+0.171X3 where Y2v1, Y2v2, Y2v3, Y7v4, are the estimated yield of the each variety, namely Gaeryang. Souban, Ilchirye, Nosang, and Suwon Sang No. 4, respectively. X1, X2, X3, denote the measured values of each character, branch length, branch diameter and leaf number per branch, respectively. 3. Y11v1=82.567-1.283X1+15.501X2+0.640X3+3.511X4 Y11v2=136.411+0.311X1+1.921X2-0.217X3+0.214X4 Y113v=150.227-0.139X1+11.788X2+0.143X3+0.381X4 Y11v4=-160.850+0.323X1+66.076X2-0.794X3+2.614X4 where Y11v1, Y11v2, Y11v3, Y11v4, are the estimated yield values of four varieties, and X1, X2, X3, X4 denote the measured values of four characters, namely branch length, branch diameter, leaf number per branch and leaf area per branch, respectively. The estimation method of mulberry leaf yield by measurement of some characters, branch length, branch diameter, leaf number per branch and leaf area per branch, could be the better method to determine the leaf yield of mulberry trees without destroying the leaves and without weighting the leaves of mulberry trees than the other methods.

2001년 11월 오염시기와 2002년 봄 황사시기 제주도 고산에서의 미량원소 농도 변화

한진석,김영성,문광주,안준영,김정은,류성윤,김영준,공부주,이석조 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.2

The chemical composition of PM_(2.5) was measured at Gosan. Jeju for two weeks each in November 2001 and spring 2002. In the latter part of the measurement period of November 2001, designated as the polluted period in this work, secondarily formed ion components as well as primarily emitted elemental carbon were high, PM_(2.5) mass concentration was also high in this polluted period compared with the yellow sand period, in which daily average of PM_(10) peaked up to 520㎍/㎥. Increase of major components of anthropogenic origin in the polluted period was not correlated with the variation in sea salt components while increase of crustal components in the yellow sand period was highly correlated with the variation in sea salt components. Trace elements were generally higher in the yellow sand period: however, toxic heavy metals such as zinc, cadmium and lead were the highest in the polluted period.

다운증후군의 산전진단을 위한 다양한 선별검사의 기여율 비교 - 산전 및 신생아때 진단된 96 례 분석 -

한정열(J . Y . Han),김문영(Y. M . Kim),조준형(J . H . Cho),안현경(H . K . Ahn),류현미(H . M . Ryu),김진미(J . M . Kim),김영미(Y . M . Kim),박소연(S . Y . Park),한혜경(H . K . Han),이영호(Y . H . Lee),양재혁(J . H . Yang) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.10

연구의 목적은 다운증후군을 산전진단하기 위한 다양한 산전선별검사 (나이; 35세 이상, 임산부 혈청 marker를 이용한 triple test, 초음파; 비정상 소견, 후경부 투명대 (nuchal translucency), 후경부두께 (nuchal fold thickness))의 기여율를 비교하기 위한 것이다. 1990년 1월부터 1999년 9월까지 본원에서 산전 및 산후에 진단된 례는 총 96례 이었다. 산전 및 신생아기에 진단된 다운증후군의 빈도는 각각 68례 (71 %), 28례 (29 %)였다. 다운증후군 태아를 임신했던 임산부의 평균연령은 33±5.7세이다. 다운증후군의 1,000분만당 연도별 빈도율은 1990년부터 1999년까지 각각 0.4, 1.3, 0.7, 0.7, 1.6, 0.7, 1.2, 2.2, 2.0, 그리고 2.3 (Y=0.28±0.18 year, P=0.01)이었다. 산전진단된 다운증후군의 비율 (%)은 지난 10년간 각각 0 (0/2), 43 (3/7), 50 (2/4), 25 (1/4), 56 (5/9), 100 (5/5), 71 (5/7), 78 (14/18), 78 (14/18), 그리고 89 (17/19) (Y=12.9±8.9 year, P=0.000) 이었다. 다운증후군을 산전진단하기 위한 다양한 산전선별 검사에 따른 기여율은 35세이상의 연령에 의하면 30.2±5.6 %, triple test의 경우 18.2±3.4 %, 초음파에 의한 경우 51.7±6.3 % 이며, 초음파에 의한 산전 선별 검사가 통계적으로 유의하게 연령이나 triple test에 의한 경우 보다 다운증후군의 산전진단에 기여율이 높았다. (P=0.008) 결론적으로 본 연구에 의하면 지난 10년 동안 다운증후군을 산전 진단하기 위한 여러 선별 검사방법의 적용은 효율적이었으며, 특히 초음파에서 다양한 소견을 이용한 다운증후군의 산전선별검사는 연령이나 triple test 보다는 더욱더 의미가 있다고 추론된다. Objective : The purpose of this study was comparison of the contribution rate for prenatal diagnosis of Down syndrome using various screening methods (Age: greater than or equal to 35 years old, Serum markers: Triple test, Ultrasonography: abnormal sonographic findings, nuchal translucency, nuchal fold thickness).Methods : Total 96 cases of Down syndrome, prenatally or postnatally diagnosed between Jan. 1990 and Sept. 1999, made up the study population. We got the contribution rate of various prenatal screening methods of down syndrome, and obtained the efficiency of various screening program applied for last 10 years. Results : The frequencies of Down syndrome confirmed in prenatal and postnatal were 68 (71%) and 28 (29%) in respectively. The mean age of mother of Down syndrome fetus was 33.0±5.7 years old. The frequency rate of Down syndrome was 0.4, 1.3, 0.7, 0.7, 1.6, 0.7, 1.2, 2.2, 2.0 and 2.3 a 1,000 deliveries from 1990 to 1999 (Y= 0.28+0.18 year, P=0.01). The percentage of Down syndrome diagnosed prenatally was 0 (0/2), 43 (3/7), 50 (2/4), 25 (1/4), 56 (5/9), 100 (5/5), 71 (5/7), 78 (14/18), 78 (14/18) and 89 (17/19) from 1990 to 1999 (Y= 12.9+8.9 year, P=0.000). The contribution rate of prenatal diagnosis for Down syndrome was 30.2±5.6% by age, 18.2±3.4% by triple test and 51.7±6.3% by ultrasonography, and was significantly difference among each screen methods (P=0.008). Conclusions : This study shows that our prenatal screening program is highly effective to detect Down syndrome and especially ultrasonographic findings (abnormal sono findings, Nuchal translucency, Nuchal fold thickness) may be more important than that of age or Triple test to detect the Down syndrome prenatally.

가족공동체를 떠난 간호대학생들의 대학생활체험

김고은,김유은,김희진,조유진,안주영,허다연,홍서우,차지영,박송이 이화여자대학교 간호학회 2018 이화간호학회지 Vol.- No.52

Purpose: The purpose of this study was to understand and explain the experiences of college life among junior nursing students who live apart from their families. Methods: 14 junior nursing students living apart from their families for at least one semester were recruited through snowballing and convenience sampling. Participants were interviewed individually using open ended questions. Data were collected from July to October in 2017 until data saturation. Interviews were transcribed verbatim and analyzed by using hermeneutic phenomenological method proposed by van Manen. Results: Five essential theme clusters emerged: (1) faced with diverse problems while living apart from family, (2) depend on family when stressed, (3) adapt to college life by being independent and forming self-initiative lifestyle, (4) confront with difficulties once again when adapting to academic curriculum restructured by practicum, (5) pave the way to nursing career and feel proud of overcoming the difficulties independently. Conclusion: Although most participants faced diverse problems in college life, they tried to adapt independently by forming self-initiative lifestyle and overturn the difficulties to positive experiences. In conclusion, the process of living apart from families transformed participants into proactive individuals. Adopting counseling programs could support starting their junior years successfully.

중년 남성의 갱년기 증상 유･무에 따른 가족관계와 건강증진행위 비교

강민형,김소영,김하은,안상아,양혜지,이예지,이유진,정수영,최윤영,최지윤,신수진,이민경 이화여자대학교 간호과학대학 2017 이화간호학회지 Vol.- No.51

Purpose: The purpose of this study was to examine the difference of family relationship and health promoting behaviors between two groups depending on presence and absence of climacteric symptoms among middle-aged male. Methods: Samples of 220 men aged between 40 and 64 were recruited from metropolitan areas. The subjects responded to self-report questionnaires on general characteristics, climacteric symptoms, family relationship and health promoting behaviors. Data was collected from September 13, 2016 to September 30, 2016 and analyzed by using t-test, Pearson's correlation efficient, -test, frequency and percentage analysis. Result: In general characteristics of subjects, according to the presence or absence of climacteric symptoms, there were significant differences in occupation( =12.12, p=0.02), average monthly incom ( =11.01, p=0.01), and physical condition( =12.07, p=0.02). Mean scores of family relationship(t=-2.784, p=.008) and health promotion behaviors(t=3.629, p=.000) were significantly higher in climacteric symptom group. Significant positive correlation appeared between family relationship and health promoting behaviors in both presence(r=.493, p=.000) and absence group(r=.698, p=.000). But climacteric symptoms were in negative correlation with family relationship(r=-.187, p=.018) and health promoting behavior(r=-.233, p=.002) only in presence group. Conclusion: This study suggests that family relationship and health promoting behaviors should be considered in developing nursing intervention for climacteric middle–aged males.

Simplified Thin Film Processes in a Facility With Mini-environments

Ahn, Kie Y.,Gallo, A. R.,Greiner, J. H.,Magerlein, J. H.,Nunes, S. L. 대한전자공학회 1993 ICVC : International Conference on VLSI and CAD Vol.3 No.1

Thin film wiring processes for applications in MCM-D were investigated in an ultramodern facility equipped with mini-environments for process tools, robots for substrate handling, and SMIF (Standard Mechanical Interfaces) pods for substrate transport between tools. In this paper key features of various thin film processes are summarized along with electrical test results of a specially designed test vehicle consisting of 6x6 cells on an optically flat substrate (166 mm square) having X- and Y-conductors with varying line widths ranging from 6 to 10 ㎛um, via chains, and other test patterns.

인버터 시스템 진단을 위한 모니터링 알고리즘 구현에 관한 연구

안웅상,김연충,안정준,원충연,강기호 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

In this paper, we carried out investigation of monitoring algorithm development for examination of invester system. For transmiting data, RS-422C is adopted. The LabWindows/CVI development tool of National Instruments Co. is used for the formation of monitoring scree. The experimental set-up is composed of a PC to PC system. It is applicable to electric car inspection and repair.

The degree complexity of smooth surfaces of codimension 2

Ahn, J.,Kwak, S.,Song, Y. Academic Press 2012 Journal of symbolic computation Vol.47 No.5

For a given term order, the degree complexity of a projective scheme is defined by the maximal degree of the reduced Grobner basis of its defining saturated ideal in generic coordinates (Bayer and Mumford, 1993). It is well known that the degree complexity with respect to the graded reverse lexicographic order is equal to the Castelnuovo-Mumford regularity (Bayer and Stillman, 1987). However, much less is known if one uses the graded lexicographic order (Ahn, 2008; Conca and Sidman, 2005). In this paper, we study the degree complexity of a smooth irreducible surface in P<SUP>4</SUP> with respect to the graded lexicographic order and its geometric meaning. As in the case of a smooth curve (Ahn, 2008), we expect that this complexity is closely related to the invariants of the double curve of a surface under a generic projection. As results, we prove that except in a few cases, the degree complexity of a smooth surface S of degree d with h<SUP>0</SUP>(I<SUB>S</SUB>(2))<>0 in P<SUP>4</SUP> is given by 2+(degY<SUB>1</SUB>(S)-12)-g(Y<SUB>1</SUB>(S)), where Y<SUB>1</SUB>(S) is a double curve of degree (d-12)-g(S@?H) under a generic projection of S. In particular, this complexity is actually obtained at the monomial x<SUB>0</SUB>x<SUB>1</SUB>x<SUB>3</SUB><SUP>(degY<SUB>1</SUB>(S)-12)-g(Y<SUB>1</SUB>(S))</SUP> where k[x<SUB>0</SUB>,x<SUB>1</SUB>,x<SUB>2</SUB>,x<SUB>3</SUB>,x<SUB>4</SUB>] is a polynomial ring defining P<SUP>4</SUP>. Exceptional cases are a rational normal scroll, a complete intersection surface of (2,2)-type, or a Castelnuovo surface of degree 5 in P<SUP>4</SUP> whose degree complexities are in fact equal to their degrees. This complexity can also be expressed in terms of degrees of defining equations of I<SUB>S</SUB> in the same manner as the result of A. Conca and J. Sidman (Conca and Sidman, 2005). We also provide some illuminating examples of our results via calculations done withMacaulay 2 (Grayson and Stillman, 1997).

Search for <tex> $ K_{L}\rightarrow \pi ^{0}\nu \overline{\nu }$</tex> and <tex> $ K_{L}\rightarrow \pi ^{0}X^{0}$</tex> Decays at the J-PARC KOTO Experiment

Ahn, J. K.,Beckford, B.,Beechert, J.,Bryant, K.,Campbell, M.,Chen, S. H.,Comfort, J.,Dona, K.,Hara, N.,Haraguchi, H.,Hsiung, Y. B.,Hutcheson, M.,Inagaki, T.,Kamiji, I.,Kawasaki, N.,Kim, E. J.,Kim, J. American Physical Society 2019 Physical review letters Vol.122 No.2

승압형 컨버터를 이용한 인버터 TIG 용접기 역률개선에 관한 연구

백동영,김재문,안정준,김연충,원충연,민명식 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

Average current mode controlled power factor correction technique utilizing converters operating in continuous conduction mode is applied to welding machine to improve welding performance. Due to its simplicity. the boost converter with automatic control is potentially the least expensive active line harmonics reducing current. We implemented the inverter TIG welding machine with boost converter.