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하천에 있어서 자연성의 보전, 정비, 창출에 관한 연구(I) - 농촌지역에서의 토지이용과 하천수질과의 상관성 -
이진희,이행렬,이재근,이동근,김훈희,Lee, Jin-Hee,Lee, Haeng-Youl,Lee, Jae-Kun,Lee, Dong-Kun,Kim, Hoon-Hee 한국환경복원기술학회 1998 한국환경복원기술학회지 Vol.1 No.1
The sources of the pollution on a river are divided into two classes, one the point source and the other non-point source. In raining, especially, the non-point source discharged from paddy, residential area, road ${\cdots}$ etc have correlations with the land use. This study was carried out to find out the model to estimate the quality of water in a river according to the land use. Land use data (Pungse-Myeoun and Kwangduk-Myeoun in Chonan) were produced from Landsat TM (Thematic Mapper) and topographic map. Total nitrogen(TN) and total phosphorus(TP) general indices for the degree of pollution in river were measured during 11 months. Correlations between two variables(Land use and Pollutants(TN, TP)) were explained by the regression coefficient. As a result of this study, we found that among the five types of land use, the residential area, store area and paddy have significant effects upon the quality of water in a river. The results of this study will be applied to pre-estimate the degree of pollution in river broadly and to offer basic data in establishing the land use plan and the concept on the conservation of the river in rural area.
이진희,신기일,Lee, Jin-Hee,Shin, Key-Il 한국통계학회 2007 응용통계연구 Vol.20 No.3
표본조사에서 항목무응답 발생 시 결측대체에 사용되는 일반적인 방법은 결측변수와 관계 있는 보조변수를 이용하는 것이다. 최근 이진희 등 (2006)은 2002년 강원지역의 농가경제 자료를 이용하여 표본조사에서 공간통계를 이용한 결측대체 (missing imputation) 방법을 비교하였으며, 자료들 사이에 지역적 상관이 존재할 때 이를 이용한 결측대체가 효율적임을 보였다. 본 논문에서는 이를 확장한 개념으로, 강원지역의 2000-2002까지의 월별 자료가 공간상관과 시계열상관이 존재함을 확인하고 이 관계를 결측대체에 이용하였다. 또한 공간상관과 시계열상관이 모두 존재할 경우 공간시계열 모형을 이용한 결측 대체 방법이 공간모형을 이용하였을 때에 비해 더 효율적임을 모의실험을 통해 확인하였다. It is a common practice to use the auxiliary variables to impute missing values from item nonresponse in surveys. Sometimes there are few auxiliary variables for missing value imputation, but if spatial and time autocorrelations exist, we should use these correlations for better results. Recently, Lee et al. (2006) showed that spatial autocorrelation could be efficiently used for missing value imputation when spatial autocorrelation existed, using the data from the farm household economy data in Gangwon-do, 2002. In this paper, we present au evaluation of spatial and space-time nonresponse imputation methods when there exist spatial and time autocorrelations using the monthly data during 2000-2002 from the same data previously used by Lee et al. (2006). We show that space-time imputation method is more efficient than the other through the numerical simulations.
혈뇨 환아에서 고칼슘뇨군과 비고칼슘뇨군의 혈액 및 소변화학검사와 신기능 지표들의 비교
이진희,이현승,이근영,장필상,이경일,김동언,Lee, Jin-Hee,Lee, Hyun-Seung,Lee, Keun-Young,Jang, Pil-Sang,Lee, Kyung-Yil,Kim, Dong-Un 대한소아신장학회 2007 Childhood kidney diseases Vol.11 No.2
목 적 : 육안적 또는 현미경적 혈뇨를 주소로 24시간 소변화학검사를 시행한 환아들의 의무 기록을 후향적으로 조사하여 고칼슘뇨군과 비고칼슘뇨군으로 나누어 두 군의 혈액 및 소변화학검사와 그로부터 계산된 각 용질의 배설량, 청소율, 분획배설 등에 있어서 두 군간에 차이점이 있는지 비교하였다. 방 법 : 1997년 2월부터 2007년 2월까지 10년간 가톨릭의대 의정부성모병원 소아과에서 육안 또는 현미경적 혈뇨를 주소로 24시간 소변검사를 시행한 환아 중, 단백질 배설량이 4 mg/$m^2$/시간 이상으로 단백뇨가 동반된 경우는 제외하고, 소변 칼슘 배설량이 4 mg/kg/일 이상으로 특발성 고칼슘뇨증으로 진단 받은 30명과 소변 칼슘배설량이 3mg/kg/일 미만인 비고칼슘뇨군 환아 41명을 대상으로 하여 혈액화학검사, 기본 소변검사, 24시간 소변화학검사로부터 각종 소변 용질의 배설량, 청소율, 분획배설 등을 구하여 두 군간에 차이점이 있는지를 비교 분석하였다. 결 과 : 고칼슘뇨군(30명)과 비고칼슘뇨군(41명)에서 육안적 혈뇨는 각각 24명(80%), 17명(42%)으로 고칼슘뇨군에서 육안적 혈뇨의 비가 높았다. 임의채취뇨의 Ca/Cr 비는 각각 $0.34{\pm}0.15,\;0.15{\pm}0.13$이었으며 고칼슘뇨군 30명 중 28명의 임의채취뇨 Ca/Cr 비는 0.2 이상이었고, 비고칼슘뇨군 41명 중 36명의 임의채취뇨 Ca/Cr 비가 0.2 미만이었다. 혈액화학검사에서 고칼슘뇨군과 비고칼슘뇨군의 혈청 칼슘은 각각 $9.8{\pm}0.5 mg/dL,\;9.5{\pm}0.5 mg/dL$로 고칼슘뇨군이 통계학적으로 유의하게 높았다(P=0.033). 24시간 소변의 칼슘농도는 각각 $14.7{\pm}7.7 mg/dL,\;3.3{\pm}2.2 mg/dL$로 고칼슘뇨군이 유의하게 높았고(P<0.001), 칼슘배설량도 각각 $6.1{\pm}2.9 mg/kg/$일, $1.5{\pm}0.9 mg/kg/$일로 고 칼슘뇨군에서 유의하게 높았다(P<0.001). 크레아티닌 청소율로 구한 사구체여과율은 각각 $93.7{\pm}31 mL/min,\;79.5{\pm}32.0 mL/min$로 고칼슘뇨군이 유의하게 높았다(P=0.048). 24시간 소변의 요소농도는 각각 $797{\pm}316 mg/dL,\;569{\pm}329 mg/dL$로 고칼슘뇨군에서 유의하게 높았고(P=0.015), 요소배설 량도 각각 $341 {\pm}102 mg/kg/$일, $233{\pm}123 mg/kg/$일로 고칼슘뇨군에서 유의하게 높았다(P=0.002). 나트륨 배설량은 두 군간에 차이가 없었으나 나트륨 분획배설(FENa)은 각각 $1.0{\pm}0.4%,\;1.3{\pm}0.6%$로 고칼슘뇨군에서 유의하게 낮았다(P=0.029). 소변배설량은 두 군간에 차이가 없었으나 소변의 삼투질농도는 각각 $393{\pm}103 mOsm/kg\;H_2O,\;304{\pm}96 mOsm/kgH_2O$로 고칼슘뇨군에서 더 농축된 소변을 보았다(P=0.003). 결론 :고칼슘뇨군의 소변화학검사의 가장 특징적인 소견은 요소 배설과 사구체여과율의 증가로서 이는 고칼슘뇨군이 비고칼슘뇨군에 비하여 고단백식이를 하고 있을 가능성을 시사한다. 나트륨과 칼슘은 사구체 여과가 증가함에 따라 원위세뇨관 및 집합관에 도달하는 양도 증가하고 그 곳에서 나트륨의 재흡수 기전이 매우 정교하게 이루어지는데 비하여 칼슘의 그 것은 그렇지 못하여 고칼슘뇨증을 일으켰을 가능성이 있다. 향후 고칼슘뇨 환아를 진료함에 있어서 단백질 섭취 등식이 습관의 문진과 함께 식이요법도 고려해 보아야 할 것으로 생각된다. Purpose : The purpose of this study was to investigate whether hypercalciuria patients with hematuria show different renal indices compared to non-hypercalciuria patients with hematuria. Methods : We retrospectively reviewed the medical records of patients with gross or microscopic hematuria whose blood chemistry and 24 hour urine chemistry were examined. After excluding the patients with more than $4 mg/m^2/day$ proteinuria or the patients with urinary calcium excretion between 3 and 4 mg/kg/day, we divided the patients into two groups: a hypercalciuria group whose calcium excretion was more than 4 mg/kg/day(n=30) and a non hypercalciuria group whose calcium excretion was less than 3 mg/kg/day(n=41). The urinary excretion, clearance, and fractional excretion(FE) of Na, K, Cl, Ca, P, urea, and creatinine were calculated and compared between the two groups. Results : The hypercalciuria group had more calcium excretion($6.1{\pm}2.9$ vs $1.5{\pm}0.9 mg/kg/day$), more urea excretion($341{\pm}102$ vs $233{\pm}123 mg/kg/day$), greater glomerular filtration rate(GFR) ($93.7{\pm}31.1$ vs $79.5{\pm}32.0 mL/min$) but lower FENa($1.0{\pm}0.4%$ vs $1.3{\pm}0.6%$) than the nonhyper-calciuria group, although the urinary sodium excretion was similar between the two groups. Conclusion : The greater urea excretion and GFR in hypercalciuric patients suggest that they might be on a higher protein diet than the non-hypercalciuria group. The increased glomerular filtration of sodium and calcium induced by the higher GFR in hypercalciuria would have increased their delivery to the distal tubule, where sodium is effectively reabsorbed but calcium is not, which is suggested by the lower FENa but higher FECa in hyercalciuria. It is recommended that the diet of hematuria patients be reviewed in detail at initial presentation and during treatment.
브로일러 병아리에 있어서 밀기울 , 칼슘 및 소금의 상호작용에 관한 연구
이진희,한인규,백인기 ( J . H . Lee,In K . Han,I . K . Paik ) 한국축산학회 1985 한국축산학회지 Vol.27 No.10
In order to study the interrelationships of dietary such factors as wheat bran, calcium and salt a total number of 480 broiler chicks of Hisex-Hibro strain was fed 3 × 2 × 2 factorially arranged experimental diets for 28 days. In the present experiment were used 3 levels of dietary wheat bran (0, 5, 10%), 2 levels of dietary calcium (0.9, 1.5%) and two supplemental salt levels (0.3, 1.0%). Body weight gain, daily feed intake, feed efficiency and gall bladder weight were measured. And bone calcium content, bone ash content, serum calcium content and serum sodium content were also measured. The results observed in the present study are summarized as following: 1. Body weight gain was gradually and insignificantly decreased as dietary level of wheat bran was increased, and dietary levels of calcium and salt failed to show any significant effects on the body weight gain. But high Ca × high salt gained slightly more body weight than low Ca × low salt. 2. Feed intake was significantly decreased (p$lt;0.01) as the level of wheat bran was increased. Interaction of wheat bran with dietary levels of salt or calcium were found significant (p$lt;0.01); increased level of wheat bran resulted in decreased feed intake when salt level was lowered or when calcium level was increased. 3. Feed efficiency was not affected by any combination of dietary level of the experimental materials, although high Ca × high salt groups showed slihtly improved values. 4. Weight of gall bladder was increased as dietary level of wheat bran was increased or as dietary level of calcium. was decreased (p$lt;0.05), and high salt × high Ca showed heavier gall bladder weight than low salt × low Ca. 5. Bone calcium content was not significantly affected by treatments, except decrease (p$lt;0.05) with high level of wheat bran. Bone ash retention was increased with high dietary salt level and it was more pronounced with high calcium level. 6. Serum calcium content was increased as the dietary levels of wheat bran and calcium were increased (p$lt;0.01). Serum calcium with low calcium × high salt was decreased, but with high calcium × high salt decreased. Serum sodium level was increased with increased dietary levels of calcium or salt (P$lt;0.01), and it was affected by dietary wheat bran level (p$lt;0.01) and seems to be due to interaction between dietary levels of wheat bran and salt.
의사스펙트럴법을 이용한 원형 Mindlin 평판의 동적특성 해석
이진희,Lee, Jin-Hee 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.6
A study of fee vibration of circular Mindlin plates is presented. The analysis is based on the pseudospctral method, which uses Chebyshev polynomials and Fourier series as basis functions. It Is demonstrated that rapid convergence and accuracy as well as the conceptual simplicity could be achieved when the pseudospectral method was apt)lied to the solution of eigenvalue problems. Numerical examples of circular Mindlin plates with clamped and simply supported boundary conditions are provided for various thickness-to-radius ratios.
독일어의 모음 장$\cdot$단음표기에 대한 정서법적 논쟁 고찰
이진희,Lee Jinhee 한국독어학회 2002 독어학 Vol.5 No.-
Die graphische Markierung der $Vokalquantit\"{a}t$ im Deutschen gilt als komplex und schwerlembar. Die Gemination von Konsonantbuchstaben gehort auch zu den $auff\"{a}lligsten$ Erscheinungen der deutschen Orthographie. Da hierzu verschiedene Mittel eingesetzt werden. In der Mehrzahl der $F\"{a}lle\;bleibt\;die\;Vokalquantit\"{a}t$ unbezeichnet, $Vokall\"{a}nge$ e, a, o durch Doppelvokal, bei i durch <ie> oder generell durch Dehnungs -h markiert. Das Thema ist insbesondere seit Mitte der 80er Jahre immer wieder behandelt worden und zwar unter linguistischen wie didaktischen, unter psycholinguistischen Wie schrifttheoretischen Gesichtspunkten. $Zun\"{a}chst$ versucht man, die Regelhaftigkeit der $Qunatit\"{a}tsbezeichnungen\;aus\;der\;Ber\"{u}cksichtigung$ phonotaktischer Gegebenheiten zu $begr\"{u}nden$. Und um im Datail zu untersuchen, $w\"{a}hlt$ man einen Teilaspekt der Thematik aus, die $Vokalk\"{u}rze$ und ihre Bezeichnung durch die Doppelkonsonanzschreibung: 1) der akzentbasierte Ansatz und 2) der phonembasierte Ansatz. Beide $Ans\"{a}tze$ haben gemeinsam, dass sie zwar den Datenbereich im $gro{\ss}en$ und ganzen und ganz recht gut abdecken, aber von einer Beschreibung nicht weiner $Erkl\"{a}rung$ der Wortschreibung $versto{\ss}en.\;W\"{u}nschenswert$ ist daher ein Beschreibungsansatz $f\"{u}r$ die Konsonantenverdoppelung, der zum einen sowohl die Phonem- als auch die Akzentstruktur einbezieht, Will anderen die Auswirkungen der verschiedenen Schreibungen auf den Leseprozess ins Auge fasst.