• 생물환경조절학회지
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• 제10권4호
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• pp.237-243
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• 2001

무가온 촉성재배시 멀칭재료가 참외 생육과 품질에 미치는 영향을 구명하기 위하여 토양 멀칭재료로 하우스외피복 재활용필름, 배색 P.E. 필름, 녹색 P.E. 필름과 대조구로 투명 P.E. 필름을 설치하여 지온의 변화와 생육, 과실품질 등을 조사하였다. 토양 5cm 깊이의 일.월중 지온은 하우스외피복 재활용필름에서 높았으나 광 투과율이 낮은 녹색 P.E필름에서 낮았다. 토양 심도별 야간지온은 녹색 P.E. 필름은 토양 깊이 20cm에서 나머지 필름은 토양 깊이 5cm에서 가장 높았으며, 멀칭 재료별 지온차는 깊이 내려갈수록 점차 감소되었다. 정식 후 30일의 초장과 절수는 지온이 높은 하우스외피복 재활용필름이 유의하게 높았으며, LAI, CGR, RGR도 높은 경향을 보였다. 정식 후 30일의 잡초 발생량은 큰 차이가 없었으나 정식 후 90일에는 투명 P.E.필름에서 많았다. 과실 수확은 하우스외피복 재활용필름에서 빨라 투명 P.E.필름보다 2일 단축되었으나, 과중, 과장, 당도 등 과실특성은 큰 차가 없었다. 하우스외피복 재활용필름에서 상품수량은 2,426kg.10a$^{-1}$로 투명 P.E. 필름보다 6% 증수되었다.

• 한국강구조학회 논문집
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• 제17권3호통권76호
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• pp.347-356
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• 2005

최근 들어 강구조 공장건축은 상당부분 P.E.B.시스템으로 지어지고 있으나 관련기술이 대부분 외국에서 수입된 것으로 전용프로그램(예, MBS, LTI 등)에만 의존하고 있고 국내의 설계지침이 없어서 AISC-ASD에 의해 설계하고 있다. 또한 P.E.B.골조의 구조적 거동을 검토한 연구 및 H형강을 이용한 요소기술 개발이 부족한 실정에 있다 특히, 기둥-보(rafter) 접합부는 Extended type end plate에 의한 접합에만 의존하여 과다설계의 경향이 있으므로. 접합부에 대한 구조적 검토가 필요하다. 따라서 이 연구에서는 P.E.B.시스템 공장건물에서 H형강-보(rafter)의 접합부(Extended/Flush type)의 구조성능을 실험적으로 평가하여 구조적, 경제적으로 우수한 P.E.B. 시스템 골조의 설계를 위한 기초자료를 제공하고자 한다.

• Asian-Australasian Journal of Animal Sciences
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• 제26권8호
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• pp.1089-1101
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• 2013

Effects of varied dietary energy densities on immune response and performance of Muzzafarnagari lambs were ascertained in a 180-d study. Animals (n = 24), in three groups, were fed diets providing 100% (100E), 80% (80E) or 70% (70E) of their metabolizable energy requirement. Mean nutrient digestibilities varied significantly among treatments. Nitrogen intake was lower (p<0.01) in the 70E. Nitrogen retention, was reduced (p<0.001) in 80E and 70E vs 100E. The average daily gain (p<0.001) was $47.01{\pm}4.23$, $13.54{\pm}1.72$ and $-16.67{\pm}8.24$ g for 100E, 80E and 70E, respectively. Hemoglobin concentration, haematocrit, total and differential leukocyte counts were lower (p<0.001) for 80E and 70E than for 100E with a similar trend (p<0.05) for serum glucose and total protein. Serum cortisol was reduced (p<0.001) with decreased energy availability. Antibody titre to Brucella abortus S19 showed an initial reduction in 80E and 70E vs 100E. Delayed-type hypersensitivity response was lower (p<0.001) in 80E and 70E vs 100E, accompanying a lower (p<0.001) nitric oxide production by the peripheral lymphocytes. It is concluded that the reduced dietary energy density significantly affects the growth performance and immune response of lambs.

• Journal of Nutrition and Health
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• 제31권9호
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• pp.1385-1393
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• 1998

The hypoglycemic effects of butanol(BuOH) fraction of Polygonatum odoratum with vitamin E in streptozotocin(STZ)-induced diabetic rats were investigated. Sprague-Dawley rats weighing 200-230g were devided into five groups, and four groups induced diabetes mellitus by the STZ injection(45mg/kg b.w.) into the tail vein : Normal, diabetic-control, and three diabetic experimental groups(p. odoratum group, P. od-vit. E group and Vit. E group). All groups were fed on a AIN-76 diet, and the experimental groups were orally administered with the BuOH fraction of Polygonatum odoratum(500mg/kg b.w.) and vitamin E(10mg/kg b.w.) for 14 days. The body weight, diet intake and organ weights were monitored. The plasma levels of glucose, insulin, cholesterol, triglyceride, HDL-cholesterol and aspartate and alanine aminotransferase activities were analyzed. The levels of glycogen in liver and muscle, cholesterol in liver were determined. The malondialdehyde(MDA) levels in liver, kidney and lung were assayed. The body weight loss was seen in P. odoratum group, P. od-vit. E group, Vit. E group and diabetic control group, while the loss in P. odoratum group was much less than that in the diabetic control group. The plasma glucose levels were significantly lowered in P. odoratum group compared to diabetic control group. The plasma insulin levels were noticeably higher in P. odoratum and Vit. E groups. The rats in P. odoratum and P. od-vit. E group showed higher liver glycogen levels than in the diabetic control group. The MDA levels in liver, kidney and lung were also significantly reduced in P. od-vit. E and Vit. E groups compared to the diabetic control group. The results suggest that the administration of BuOH fraction of Polygonatum odoratum along with vitamin E reduced blood glucose levels and peroxidative tissue damage in STZ-induced diabetic rats, showing the possibility of preventive and therapeutic use of the wild edible plant to the diabetes mellitus. (Korean J Nutrition 31(9) : 1385-1393, 1998)

• 한국가축번식학회지
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• 제24권2호
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• pp.163-170
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• 2000

본 연구는 rBST, vitamin E 및 selenium (Se)의 투여가 한우 종모우의 혈액성분 및 호르몬의 농도변화에 미치는 영향을 검토하였다. 1. rBST 투여구, Vit. E 투여구 및 Se 투여가 한우 종모우의 혈액성분에 미치는 효과를 조사한 결과, 혈중 albumin의 함량은 Se 투여구가 대조구, rBST 투여구 및 Vit. E 투여구보다 통계적으로 유의하게 높은 함량을 나타났으며 (P＜0.05), 혼합투여구는 여타구 (대조구, rBST 투여구 및 vitamin E 투여구)보다 통계적으로 유의하게 높게 나타났다 (P＜0.05). 혈중 BUN (Blood Urea Nitrogen)과 creatinine의 함량은 rBST 투여구가 여타구보다 통계적으로 유의하게 높게 나타났다 (P＜0.05). 혈중 total protein 함량은 rBST 투여구, Se 투여구 및 혼합투여구가 대조구보다 통계적으로 유의하게 높은 함량을 나타냈다 (P＜0.05). 혈중 calcium, cholesterol, glucose, inorganic phosphoros 의 함량은 투여구간에 차이가 없었다 (P＞0.05). 2. rBST, Vit. E 및 Se 투여가 한우 종모우의 혈중내 호르몬의 변화에 미치는 효과를 조사한 결과, 혈중 estradiol의 농도는 Se 투여구와 혼합투여구가 여타구 (대조구, rBST 투여구 및 Vit. E 투여구 )보다 다소 높게 나타났지만 유의차는 인정되지 않았으며 (P＞0.05), 혈중 testeserone의 농도는 투여구간에 커다란 차이는 없었다 (P＞0.05).

• 대한수학회논문집
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• 제9권3호
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• pp.669-670
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• 1994

Let $E \to M$ be a hermitian holomorphic vector bundle over a compact (complex) hermitian manifold M of complex dimension n, and let $$ d"_p(E) : 0 \to A^{p,0}(E) \to A^{p,1}(E) \to \cdots \to A^{p,n}(E) \to 0$$ be the Dolbeault complex. Then $A^{p,q}(E)$ become a prehibert space so that the formal adjoint $\delta"$ of $d"$ and the "Laplacian" $\Delta" = \delta" d" + d" \delta"$ are defined.quot; d" + d" \delta"$ are defined.;$ are defined.

• Archives of Pharmacal Research
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• 제11권1호
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• pp.33-40
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• 1988

Two new nitro analogs of tranylcypromine, (E)-2-(p-nitrophenyl)cyclopropylamine ((E)-p-NTCP) and (E)-2-(m-nitrophenyl)cyclopropylamine ((E)-m-NTCP) were synthesized in order to examine the effect of aromatic nitro substitution on the MAO-inhibitory activity of 2-phenylcyclopropylamines. The compounds were obtained by treating t-butyl (E)-2-(p-nitrophenyl) cyclopropanecarbamate and t-butyl (E)-2-(m-nitrophenyl)cyclopropanecarbamate with p-toluenesulfonic acid in $CH_3$CN. Inhibitions of rat brain mitochondrial MAO-A and B by the compounds were examined using serotonin and benzylamine as the substrate at both in vitro and ex vivo levels. It was found from in vitro measurements that (E)-p-NTCP at $6.0{\times}10^{-5}M$ elicited merely 22.5% inhibition against MAO-B without any effect on MAO-A. In contrast, (E)-m-NTCP showed fair degrees of inhibitions of MAO-A and B with $IC_{50}$ values, $2.5{\times}10^{-7}M\;and\;1.4{\times}10^{-6}M$, respectively. It was also noted from (E)-m-NTCP that m-nitro substitution caused a shift of selectivity of the inhibition toward MAO-A. According to ex vivo measurements at 1.5, 3, 6, and 12 hr following the administration of a dose of 0.015 mmol/kg, i.p. to the rats, the inhibition percents of MAO-A by (E)-m-NTCP were 58.6, 63.7 63.6, and 46.6%, slightly lower than those observed by tranylcypromine. Whereas, (E)-m-NTCP at the same dose level did not show significant inhibitions against both MAO-A and MAO-B. Possible reasons for the difference in potencies between (E)-m-NTCP and (E)-p-NTCP were sought in relation to differing electron withdrawing effects of m- and p-substituents which will influence electron density of the side chain amino functions and the partitions.

• Journal of applied mathematics & informatics
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• 제29권1_2호
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• pp.451-457
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• 2011

The function f(z) = $e^{p(z)}$ where p(z) is a polynomial of degree n has 2n Julia lines. Julia lines of $e^{p(z)}$ divide the complex plane into 2n equal sectors with the same vertex at the origin. In each sector, $e^{p(z)}$ has radial limits of 0 or innity. Main results of the paper are concerned with maximum curves of $e^{p(z)}$. We deal with some properties of maximum curves of $e^{p(z)}$ and we give some examples of the maximum curves of functions of the form $e^{p(z)}$.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제68차 하계학술대회논문집 31권2호
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• pp.587-590
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• 2023

게임 시장은 신기술과 함께 꾸준한 발전을 해왔다. 최근 NFT, 블록체인, 메타버스, XR, AI, P2E등 새로운 기술과 신개념이 홍수처럼 쏟아져 이슈가 되면서, 산업계와 학계는 자연스럽게 그 어느 때 보다 활발한 연구가 진행되고 있다. 하지만, P2E는 예전부터 유사한 형태로 존재해왔음에도 불구하고, 규제에 발목이 잡혀있으며, 유저들은 우회하는 방식을 통해 P2E게임을 플레이 하거나, P2E전용 게임이 아닌 게임에 대해서도 많은 현금거래를 하고 있다. P2E게임 규제 실효성과 플레이어들의 인식에 대해 연구하고자 하고자 한다.

• Journal of applied mathematics & informatics
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• 제38권5_6호
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• pp.591-600
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• 2020

This work is a continuation of our investigations for p-adic analogue of the alternating form Dirichlet L-functions $$L_E(s,{\chi})={\sum\limits_{n=1}^{\infty}}{\frac{(-1)^n{\chi}(n)}{n^s}},\;Re(s)>0$$. Let L_p,E(s, t; χ) be the p-adic Euler L-function of two variables. In this paper, for any α ∈ ℂ_p, |α|_p ≤ 1, we give a power series expansion of L_p,E(s, t; χ) in terms of the variable t. From this, we derive a power series expansion of the generalized Euler polynomials with negative index, that is, we prove that $$E_{-n,{\chi}}(t)={\sum\limits_{m=0}^{\infty}}\(\array{-n\\m}\)E_{-(m+n),{\chi}^{t^m}},\;n{\in}{\mathbb{N}}$$, where t ∈ ℂ_p with |t|_p < 1. Some further properties for L_p,E(s, t; χ) has also been shown.