대전시 도시숲의 식생 및 토양특성에 관한 연구

김동일 ( Dong Il Kim ),박관수 ( Gwan Soo Park ),김길남 ( Gil Nam Kim ),김현숙 ( Hyoun Sook Kim ),이항구 ( Hang Goo Lee ),박범환 ( Beom Hwan Park ),이상진 ( Sang Jin Lee ),강길남 ( Kil Nam Kang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.2

This study was conducted to suggest appropriate methods for management of urban forest after investigating the present condition and problems of urban forests by analyzing vegetation and soil properties in urban forests in the Daejeon. On the basis of our research, Pinus rigida dominate Gyejoksan and Bomunsan. Pinus densiflora dominate Wolpyeong park and Quercus acutissima dominate Namsun park. On the basis of our result of analysis of soil chemical properties, all investigated areas have low pHs, available phosphates and exchangeable cations. They indicate that the soil of those areas have been acidifying progressively. Soil hardness measurements were conducted to know the conditions of trampled soils and the results of them show that soil hardness in Namsun park was higher than the others. This indicates that human interference affect the health of the urban forest.

The Effect of Abdominal Visceral Fat, Circulating Inflammatory Cytokines, and Leptin Levels on Reflux Esophagitis

( Su Youn Nam ),( Il Ju Choi ),( Kum Hei Ryu ),( Bum Joon Park ),( Young Woo Kim ),( Hyun Beom Kim ),( Jeongseon Kim ) 대한소화기기능성질환·운동학회 2015 Journal of Neurogastroenterology and Motility (JNM Vol.21 No.2

Background/Aims Although adipocytes secrete inflammatory cytokines and adipokines, their role in reflux esophagitis is controversial. We investigated the association between visceral fat and inflammatory cytokines or adipokines in reflux esophagitis. Methods Abdominal visceral fat and cytokines were measured in 66 individuals with reflux esophagitis and 66 age- and sex-matched controls. The mean values for visceral fat and cytokines were compared in cases and controls. Second, correlations between visceral fat and inflammatory cytokines were measured. Finally, multiple logistic regression models for odds ratios (ORs) and 95% confidence intervals (CIs) were used to estimate the effects of visceral fat and cytokines on reflux esophagitis. Results Visceral fat, leptin, interleukin (IL)-6, and IL-1β were higher in reflux esophagitis compared to controls. Visceral fat showed a strong positive correlation with IL-6 (r = 0.523, P < 0.001), IL-8 (r = 0.395, P < 0.001), and IL-1β (r = 0.557, P < 0.001), and a negative correlation with adiponectin (r = -0.466, P < 0.001). With adjusted analysis, visceral fat/100 (OR, 4.32; 95% CI, 2.18-8.58; P < 0.001) and leptin (OR, 1.36; 95% CI, 1.10-1.69; P = 0.005) independently increased the risk of reflux esophagitis, but the effects of other cytokines were abolished. Conclusions Visceral fat may increase the risk of reflux esophagitis by increasing the levels of inflammatory cytokines. Leptin showed a positive association with reflux esophagitis that was independent of visceral fat. (J Neurogastroenterol Motil 2015;21:247-254)

콩의 개화기전후 공급과 수용부위의 무기영양성분함량 및 흡수량에 대한 질소의 효과

박재홍,송범헌,이철원,손석용,김홍식,박상일 忠北大學校 農業科學硏究所 2002 農業科學硏究 Vol.19 No.-

This study was conducted to examine the nitrogen effects on the uptaken amounts and utilization of mineral nutrients between source and sink tissues at major growth stages before and after the flowering stage with different nitrogen levels Hwangkeum cultivar(Glycine max L Mereill) was cultivated under five different mtrogen levels, 0, 2, 4, 6, 8 N kg/10a Comparing contents of total-N with different plant tissues at major growth stages before and after the flowering, total-N contents of leaves was gradually decreased from the flowering to the beginning maturity, while it of pod was continuously increased from the full seed to the beginning maturity Total-N content was higher in the treatment of 4 N Kg/10a that those of others The uptaken amount of N determined with different growth stage was rapidly increased maturity Higher proportion of uptaken N were into the leaves at the full seed stage, and they were transported from the leaves into pod at the beginning maturity stage Comparing major mineral elements of the leaves and the pod with different N leaves, in case of the leaves, the content of Fe, Mn, and Zn was decreased throughout the growth stages, whereas the content of Ca and Mg was decreased from the flowering to the full seed and then it was increased after the full seed stage In case of pod, the content of K, Fe, Mn, Zn, and Na was decreased from the flowering to the beginning maturity, while contest of Mg was increased.

콩의 개화기 전후 공급과 수용부위의 생장반응과 수량에 대한 질소의 효과

박재홍,송범헌,이철원,손석용,김홍식,박상일 忠北大學校 農業科學硏究所 2002 農業科學硏究 Vol.19 No.-

This study was conducted to examine the nitrogen effects on the growth responses, the nodulation, and the distribution of dry weight of plant tissues at major growth stages before and after the flowering stage, and to evaluate the yield components and yields with different nitrogen levels. Hwangkeum cultivar(Glycine max L mereill) was cultivated under five different nitrogen levels, 0, 2, 4, 6, 8, N Kg/10a. Stem length and branching number, which were investigated with different N levels at major growth stages, were rapidly increased for 14days for before and after the flowering stage compared to the other growth stages. They were clearly higher with treatment of 2 and 4 N kg/10a than those of other N treatments. Pod number was slightly increased from the flowering to beginning maturity. It was the highest in the treatment of 2 N Kg/10a. Comparing grain number per pod with different N levels, two grains per pod was much higher in all N treatments except for the treatment of 6 N Kg/10a. Dry weight of shoot(including leaf, stem, and pod) was rapidly increased from the flowering stage to the full seed stage and then gradually increased after the full seed stage, whereas the dry weight of root(including the nodule and root) was rapidly increased until to full pod stage and then linearly decreased from the full pod stage until the beginning maturity stage. Comparing dry weight with different N levels, the dry weight of shoot was the highest in the treatment of 4 N Kg/10a, while it of root was the highest in the treatment of 2N Kg/10a. The dry weight of nodule was the highest, 13.1 Kg/10a, at full pod stage. Comparing the dry weight of nodule with different N levels, it was increased to the application amount of 4 N Kg/10a and then clearly decreased with more application amount of N than 4 Kg/10a. The yield components which were mostly affected to the yield were pod number per plant and grain number per plant. They were 57.5 and 106.1, respectively, with treatment of 4 N Kg/10a, which showed the highest yield, about 266 Kg/10a. Comparing yield index with different N levels to the control, the yields with treatment of 2 and 4 Kg/10a were increased to 21% and 34%, respectively.

대절토 암반사면의 안정화 검토 및 현장계측 분석

박범준,류권일,고영헌,김팔규 忠南大學校 産業技術硏究所 2003 산업기술연구논문집 Vol.18 No.2

We investigated the stability of rock slope caused by large-scale cutting on construction of rapid-transit railway. Applying anchor method in order to build the up, we analyzed the stability using long-term measurement. Slope stability analysis is established by STABL 5M and DIPS as basic programs. Field measurement is required to prove the stability of rock slope which results from the reinforcement corresponding to slope stability analysis. Thus, we used one ground inclinometer and 8 load-cells for the measurement system.

인체이동에 관한 운동역학적 분석 I

박수일,변범수 한국운동역학회 1994 한국운동역학회지 Vol.4 No.2

During walking, jogging and sprinting, the support time, stride time of both legs and maximal ground reaction forces was investigated using dynamic strain amplifier and repicorder with strain gages for six male college students(3 nonathletes:3 athletes) in the department of physical education. The results this study seem to be the followings: 1. The greater the speed, the more the support time, nonsupport time and stride time was decreased. But it was shown that the nonsupport time during jogging was longer rather than one during walking. 2. Difference between the support time and nonsupport time of right and left leg shown a significant relationship during walking and jogging. whereas it was not shown significantly during sprinting in most subjects. 3. Maximal reaction forces of heel and forefoot were 1.34 BW: 1.38 BW(heel : forefoot) during walking and 1.32 BW: 2.04 BW during jogging and also were 2.49 BW(forefoot) during sprinting, respectively. 4. The % time of maximal ground reaction forces of heel and forefoot were 19.44% time : 79.83% time(heel : forefoot) during walking and 9.96% time : 43.92% time during jogging and also 53.70% time(forefoot) during sprinting.

지방자치단체 웹 사이트 구축 전략 연구 : 관광정보 안내를 중심으로

송기범,박일록,유도삼 조선대학교 통계연구소 1999 統計硏究所論文誌 Vol.1 No.1

Many people can get various services from Internet by spreading of rapid provision of the high quality and low price of personal computer in recent development of network communication. WEB service especially did a great job of spreading the use of Internet and as a result, many works are in the progress of constructing successful WEB sites over the world. Each local autonomous entities in Korea analyze the aspect of Home-page, suggest the case of foreign country, the effective way of constructing of Home-page and the way of advertising Home-page to set up successful WEB sites. The effort is well shown to suggest an effective solution for constructing local autonomous entity's tourism publicity. indicating the problem of present local autonomous entity's Home-page and the solution especially with the tourist information.

논에서 물과 양분관리에 따른 메탄(CH_4), 아산화질소(N_2O) 배출 특성

김건엽,박상일,송범헌,신용광 한국환경농학회 2002 한국환경농학회지 Vol.21 No.2

물관리방법을 달리한 상시담수와 간단관개에서 메탄과 아산화질소의 배출 양상과 서로 다른 종류의 유기물원 및 질소비료 시용에 따른 메탄과 아산화질소 배출을 비교하고 저감 할 수 있는 방법을 찾기 위해 본 시험을 실시하였다. 물관리방법으로는 상시담수 (이앙∼출수 35일까지 담수)와 이앙 35일 이후 중간낙수한 간단관개 (중간낙수기간 20일),그리고 시비방법으로는 토양을 검정한 시비량인 토양검정, 토양 검정시비량+볏짚 돈분액비, LCU 완효성비료 그리고 N을 시용하지 않은 대조구 등을 처리하여 메탄 및 아산화질소 배출량을 측정하였다. 메탄 배출량은 간단관개보다 상시담수에서 높았고, 아산화질소 배출량은 이와 반대로 나타났다. 유기물과 비료시용 종류에 따른 메탄과 아산화질소 배출량은 액비와 검정시비+볏짚시용구에서 가장 높았으며, LCU 완효성비료구에서 가장 낮았다. 지구온난화잠재력으로 환산한 온실가스 배출은 물관리 조건에서 상시담수가 간단관개보다 170∼208% 높았으며, 요소를 시용하고 상시담수를 기준 한 것과 간단관개로 물 관리하여 각 처리에 따라 온실가스 배출을 비교하면 요소는 41.4%, LCU 완효성비료 55.8%로 온실가스 배출을 줄일 수 있는 것으로 나타났다. 그리고 비료이용효율은 LCU완효성비료, 액비>검정시비+볏짖>검정시비 순이었다. Emission of methane and nitrous oxide affected by nitrogen fertilizer materials were measured simultaneously in rice paddy fields under flooding and intermittent irrigation in 2000. Studies focused on mitigating CH_4 emission from rice paddy fields are summarized and the possibilities and limits applied to world's rice cultivation are discussed. The mitigation options are water management, soil amendments, organic matter management, different tillage, rotation, and cultivar selection. Altering water management, in particular promoting midseason aeration by short-term drainage, is one of the most promising strategies, although these practices may be limited to the rice paddy fields where the irrigation system is well prepared. The test site was divided into two water managements: a continuously flooded plot which was maintained flooded by constant irrigation from May to September, and an intermittently drained plot in which short-term (20days) draining practices were performed one times during the flooding period. By total emission of GHGs converted by global warming potential (GWP), flooding plots were higher 170~208% than intermittent irrigation plots. For emission of GHGs in fertilizer materials, it was high in the order of Swine slurry>Urea+Rice straw>Urea>LCU. Basing on GHGs emission of urea fertilization under flooding as baseline GWP of urea fertilization and Latex-coated urea under intermittent irrigation showed lower GHGs emission by 41.4% and 55.8%, respectively. In this case fertilizer use efficiency (kg unhulled rice/kg of applied N) were 18.2~20.2 and 18.7~19.0 and 9.3 and 5.8~6.6 for Swine slurry and LCU and Urea+Rice straw and Urea in the continuously flooded and intermittently drained plot.

디지털 이미지 보호를 위한 효과적인 웨이브릿 변환

홍성표,박영옥,송기범,배일호,이준 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

The use of digital imaging technique and digital contents based on internet has grown rapidly for last several years, and the needs of digital image protection become more important. For the purpose of copyright protection on digital image, the verification of authentication techniques like content authentication, ownership authentication, illegal copy and etc are needed. Digital watermarking, the invisible encryption technique to insert digital watermark into image, the sophisticated perceptual information should be used for providing transparency and robustness of images on watermarking process. In this paper, we implement the algorithm for preventing forged attack, ownership protection and authentication by transforming the wavelet algorithms in frequency domain in terms of human visual system.

팥바구미 저항성 녹두의 작물학적 특성

이구환,정승근,박상일,송범헌,조용구,김홍식 忠北大學校 農業科學硏究所 2002 農業科學硏究 Vol.19 No.-