植栽密度가 리기다소나무苗의 生長에 미치는 影響

權泳徹 진주산업대학교 1980 論文集 Vol.18 No.-

리기다소나무 1­-1苗를 生産하는데 보다 더 效果的인 方法을 模索하고자 本大學의 苗圃場에서 리기다소나무 1年生苗를 植栽密度別로 床替하여 生長狀態를 試驗한 結果를 要約하면 다음과 같다. 1. 植栽密度가 낮은 C區, D區 및 E區는 植栽密度가 높은 A區와 B區보다 生育空間이 比較的 넓어서 苗高生長이 좋았다. 2. 根元徑生長도 植栽密度가 낮은 C區, D區 및 E區가 좋았다. 3. 枯死率은 各區 모두 僅少하게 나타났으며, 植栽密度와는 關係가 없었다. 4. 리기다소나무 1­-1苗의 養苗는 合格苗의 得苗本數가 많고 得苗比率이 比較的 높은 C區로 床替하는 것이 1年生苗의 損失이 적고 床替하는 勞動力도 節約된다고 생각된다. These studies were carried out know the effective way in order to produce 1-­1 Pinus rigida seedlings, and therefore they were transplanted as each planting density in this college's forestry seedbed and were investigated the growth by planting desity. The results are summarized as follows; 1. In the case of C. plot, D. plot, and E. plot of low planting density the top height growth was shown better than A. plot and B, plot of high planting density owing to have large width. 2. The root caliper growth was also showed to be good in C. plot, D. plot and E. plot of low panting density. 3. In the case of each plot, there was a similar ratio of withering and death and it was not related to planting density. 4. Based on the above-­mentiond results, it was concluded that 1-­1 Pinus rigida seedling should be transplanted at C. plot gainning much seedling by standing test and for that reason the expenses and labors were subtracted by it.

床替密度가 삼나무苗의 生長에 미치는 影響

權泳徹 진주산업대학교 1981 論文集 Vol.19 No.-

삼나무 1-1苗를 生産하는데 보다 더 效果的인 방법을 摸索하고자 本大學의 苗圃場에서 삼나무 1年生苗를 密度別로 床替하여 生長狀態를 試驗한 結果를 要約하면 다음과 같다. 1. 床替密度가 낮은 C區, D區 및 E區는 床替密度가 높은 A區 및 B區보다 苗高生長이 좋았다. 2. 根元徑生長도 C區, D區 및 E區가 좋았다. 3. 床替密度가 높은 A區와 B區는 9月과 10月에 苗木이 많이 枯死되었으며, 枯死率도 높았다. 4. 삼나무 1-1苗의 養苗는 合格苗의 得苗本數가 많고 得苗比率이 比較的 높은 C區로 床替하는 것이 1年生苗의 損失이 적고 床替하는 勞動力도 節約된다고 생각된다. These studies were carried out investigate the effective way in order to produce 1-1 Japanese Ceder(Cryptomeria japonica D. Don) seedings, and therefore they were transplanted 1-0 Japanese Ceder seedings as each density in this College’s forestry seedbed and the growth were investigated by transplanting density. The results were summarized as follows. 1. In the case of C. plot, D. plot and E. plot of low transplanting density the height growth was shown better than A. plot and B. plot of high transplanting density. 2. The root caliper growth was also showed to be good in C. plot, D. plot, and E. plot of low transplanting density. 3. In A. plot and B. plot of high transplanting density was dead extremely much on September and October, and withering dead ratio was high. 4. Based on the above- mentiond results, it was concluded that 1-1 Japanese Ceder seedlings should be transplanted in C. plot gaining much seedling by standing test and for that reason the expenses and labors were subtracted by it.

植栽密度가 海松苗의 生長에 미치는 影響

權泳徹,尹在根 진주산업대학교 1979 論文集 Vol.17 No.-

海松 1-1苗를 生産하는데 보다 더 效果的인 方法을 摸索하고져 本 大學의 苗圃場에서 海松 1年生苗를 植栽密度別로 床替하여 生長狀態를 試驗한 結果를 要約하면 다음과 같다. 1. 植栽密度가 낮은 C區, D區 및 E區는 植栽密度가 높은 A區와 B區보다 生育空間이 比較的 넓어서 苗高生長이 좋았다. 2. 根元徑生長도 植栽密度가 낮은 C區, D區 및 E區가 좋았다. 3. 各區 모두 僅少한 枯死率을 나타내었으나, 植栽密度와는 關係가 없었다. 4. 海松 2年生苗의 養苗는 合格苗의 得苗比率이 높은 C區로 床替하는 것이 1年生苗의 損失이 적고 床替하는 勞動力도 節約된다고 생각된다. These studies were carried out know the effective way in order to produce 1-1 Black pine (Pinus thunber gii Parlatore) seedlings, and therefore they were transplanted as each planting density in this college's forestry seedbed and were investigated the growth by planting density. The results are summarized as follows. 1. In the case of C. plot, D. plot and E. plot of low planting density the top height growth was shown better than A. plot and B. polt of high planting density owing to have large width. 2. The root caliper growth was also showed to be good in C. plot, D. plot and E. plot of low planting density. 3. In the case of each plot, there was a similar ratio of withering and death and it was related to planting density. 4. Based on the above-mentiond results, it was concluded that 1-1 Black pine seedling should be transplanted at C. plot gainning much seedlings by standing test and for that reason the expenses and labors wre substracted by it.

植栽密度가 落葉苗의 生長에 미치는 影響

權泳徹 진주산업대학교 1976 論文集 Vol.14 No.-

落葉松 1-1苗를 生産하는데 보다 더 效果的인 方法을 模索하고져 本校의 苗圃場에서 落葉松 1年 生苗를 植栽密度別로 床替하여 生長狀態를 試驗한 結果를 要約하면 다음과 같다. 1. 植栽密度가 높은 D區와 E區는 生育空間이 比較的 넓고 受光狀態가 良好하여 植栽密度가 높은 A區, B區, C區보다 苗高生長이 좋았다. 2. 根元徑生長도 植栽密度가 낮은 D區와 E區가 좋았다. 3. 植栽密度가 높은 A區는 10月에 苗木이 가장 많이 枯死되었으며, 枯死率도 가장 높았다. 4. 落葉松 1年生苗는 合格苗의 得苗本數와 得苗比率이 比較的 좋은 D區로 床替하는 것이 1年生苗의 損失이 적고 床替하는 勞動力도 節約된다고 생각한다. This study was carried out to inguiry the effective way producing Larch (Larix gmelimi var principis-rupprechtii(Mays)Pilger)seedlings(l-1), and there fore was transplanted Larch seedung(1-0) as each planting density in this forestry seedbed and was investigated growth of seedlings. The results obtained were as fo1lows. 1. In D. p1ot and E. Plot of low plantng density the height growth of seedling was made a good record owing to have large width and sound 1ight than A. plot, B. plot and C'plot of high p1anting density. 2. Diameter growth of seedling was made a good record in D.Plot and E.Plot of low pianting density. 3. In A. pIot of high planting density the Larch seedling was dead extremely much on octobober and withering dead ratio was higest. 4. I conclude that Larch seedling(1-0) is had to transplant at D. plot of good seedling as possible of standing the test and good ratio as possible and that is substracted laber transplanting Larch seedling(1-0) with using few seedling.

間伐이 소나무의 直徑成長에 미치는 影響 : Pinus densiflora S. et Z.

權泳徹,趙顯端 진주산업대학교 1982 論文集 Vol.20 No.-

本 硏究는 소나무天然林에서 間伐이 소나무의 直徑成長에 어떤 影響을 미쳤는가를 調査한 것이다. 그 結果를 要約하면 다음과 같다. 1. 間伐區(B)와 無間伐區(A)는 幼令林分에서는 거의 비슷한 成長을 하였으나 15年以後부터 平均年輪幅과 年領의 平均斷面積과 年輪의 累加斷面績이 無間伐區보다 間伐區가 急進的으로 增加된 것으로 보아 15年때에 間伐이 實施된 것으로 사료된다. 2.. 間伐區는 無間伐區보다 平均年輪幅은 약 1.5倍로, 年輪의 平均斷面績은 1.9倍로, 年輪의 累加斷面績은 1.7倍 以上으로 成長하였으므로 間伐이 소나무의 直徑成長에 크게 影響한 것으로 생각된다. This study was carried out to determine the effect of thinning on the diameter growth of the natural regenerated forest of pine tree (Pinus densiflora S. et Z.) The results obtained were as follows; 1. The thinning plot(B) and non thinning plot(A) were shown growth rate of both similarly in brush stage, but since after 15 years the thinned plot was shown more increment than unthinned plot about the average annual ring width, average cross section area of annual ring and accumulated cross section area related to tree age. Therefore I conclude that may be better thinned at 15 years. 2. The thinning plot was shown growth rate of 1.5 times of average annual ring width, 1.9 times of average cross section of annual ring and 1.7 times of accumulated cross section area related to tree age than the non thinning plot. It was assumed that this tendency would be caused by the thinning.

Metasequoia(Metasequoia glyptostroboides Hu et Cheng)의 揷木에 關한 硏究

權泳徹 진주산업대학교 1975 論文集 Vol.13 No.-

速成樹인 Metasequoia의 效果的인 繁殖法을 模索하기 爲하여 5가지 揷土에다 植物生長調整劑(NAA)의 濃度別로 揷木하여 發根成績을 調査하였는데 그 結果를 要約하면 다음과 같다. 1. 揷土別로는 揷穗를 눈이 트기 前에 採取하여 赤土50%와 모래 50%의 揷土에 揷木한 것이 成績이 優秀하였다. 2. 植物生長調整劑(NAA)의 濃度別로는 그 成績에 差異는 없으나, 處理區가 無處理區에 比해 成績이 優秀하였다. 3. Metasequoia의 揷木은 揷穗를 눈이 특기 前에 採取하여 赤土 50%와 모래 50%의 揷土에 植物生長調整劑(NAA)를 處理하여 揷木하는 것이 좋았다. These experiments were carried out to know effective breeding of Metasequoia with five cutting soils. Those were cut with kinds of plant growth regulator NAA in concentration and were investigated to root. The results were summarized as follows: 1. It was made a good record to cut in 50% red soil and 50% sandy soil with cuttings in not bud about cutting soils. 2, About concentration of NAA it was not showed to be different by record, but the treatment soil was obtained good result in comparison with natural soil. 3. The better way of cutting of Metasequoia is cut in 50% red soil and 50% sandy soil to treat plant growth regulator NAA in not bud.

백서에서 치아이동 후 보정기간 동안 교합이 치주조직섬유의 재형성에 미치는 영향

정권희,박영준,이기헌,황현식 대한치과교정학회 2003 대한치과교정학회지 Vol.33 No.2

본 연구는 실험적 치아이동 후 보정기간 동안 교합이 치주조직섬유의 물리적 강도에 미치는 영향을 알아보고자 시행되었다. 체중 200g 내외의 Sprague-Dawley계 백서 수컷에서 상악 양측 제1대구치와 2대구치 사이에 교정용 고무줄을 삽입하여 4일 동안 치아를 이동시킨 다음, 각 실험동물의 하악 좌측 베1, 2, 3대구치를 발치하여 우측은 대합치가 있는 교합측으로, 좌측은 비교합측으로 구분하였다. 상악 제1대구치와 2대구치 사이의 인접면에 유지구를 형성하고 광중합형 레진으로 채워 보정을 시행한 후 시작 0일, 4일, 8일, 12일, 16일 또는 20일 경과한 후 백서를 희생시킨 다음, 만능물성 시험기를 이용하여 상악 제1대구치를 발치할 때 필요한 최대인장강도를 측정 좌우간 비교 분석하여 다음과 같은 결과를 얻었다. 1. 교합측은 비보정군에서 보정 4일, 8일, 12일, 16일, 20일군으로 갈수록 최대인장강도사 증가하였고, 보정 12일군 이후부터 통계적으로 유의한 차이를 보였다(p<0.05). 2. 비교합측은 비보정군에서 4일, 8일, 12일, 16일, 20일군으로 갈수록 최대인장강도가 증가하는 경향을 보였으나 통계적으로 유의한 차이를 보이지 않았다(p<0.05) 3. 교합측과 비교합측의 최대인장강도를 비교한 결과 보정 8일군까지 통계적으로 유의한 차이를 보이지 않았으나 (p>0.05), 보정 12일군 이후 보정 20일군까지 통계적으로 유의한 차이를 보였다(p<0.05). 이상의 결과는 실험적 치아이동 후 보정기간 동안 교합이 치주조직 섬유의 재형성에 영향을 미침으로 보정장치의 선택, 기간설정 등 보정계획서 교합에 대한 고려가 필요함을 시사하였다. The purpose of this study was to valuate the effect of occlusion on the mechanical strength of periodontal fibers during retention periods after experimental tooth movement. In the Sprague-Dawley male rats weighing 200g or more, the intraoral elastics were inserted into the both right and left interproximal space between upper first and second molars for tooth movement. After 4 days later, the left lower first, second, and third molars were extracted for differentiating the non-occlusal side from the occlusal side in the same mouth. At the same time the elastics were removes and than light cured resin was placed in the space between upper first and second molard following undercut was made for retention bilaterally. From the beginning of retention, 7 rats were sacrificed at 0, 4, 8, 12, 16, 20 days respectively. For evaluating of magnitude on the mechanical strength of periodontal tissue, the maximal shear load of the upper first molars were measured bilaterally during extraction using Instron Universal Testing Machine. The results of this study were obtained as follows : 1. In the occlusal side, the maximal shear load was increased from no retention to retention 20 days group as time was going and statistically difference was shown from retention 12 days group (p<0.05). 2. In the non-occlusal side, the maximal shear load was increased slightly from no retention 20 days group as time was going but there was no statistically difference (p>0.05) 3. The result compared with the maximal shear load between occlusal and nonocclusal side showed no statistically difference until retention 8 day group (p>0.05), but showed statistically difference from retention 12 day to 20 day group (p<0.05). These results show that occlusion had an effect on mechanical strength of the periodontal fibers during retention periods after experimental tooth movement; therefore, it is suggested that occlusion should be considered while the retainer types and retention period are planned.

한국인의 간과 콩팥조직 내 수은 함유량의 참고치

최병선,박영주,권일훈,홍연표,박정덕 한국환경독성학회 2002 환경독성보건학회지 Vol.17 No.2

This study was conducted to investigate the reference value of mercury (Hg) in liver and kidney of Korean population. The mercury concentration in 244 'sudden and unexpected death' autopsies (male: 180, female: 64) aged from 0 to87 years was analyzed. The concentration of mercury was measured by atomic absorption spec(Perkin -Elmer Model 5100) with mercury/hydride generating system (FIAS 400). The contents of mercury in liver and kidney fitted well the log-normal distribution rather than normal distribution. Geometric mean concentration of mercury in liver and kidney was 0.115 ㎍/g wet weight and 0.149 μg/g wet weight, respectively. Geometric mean concentration of mercury in female was higher than in male (p<0.01). The mercury content in liver and kidney increased with age up to the forties and slightly decreased there-after, The regression model of mercury deposit in liver and kidney by age was predicted as the following equation : Log KHg=-1.0576+0.0045·Age -0.0001·Age²+0.0873·Sex, Log KHg=-1.0576+0.0152·Age-0.0002·Age²+0.1935·Sex. The liver burden of mercury was estimated to be 158.3~161.3μg in male and 163.0-166.9 ㎍ in female. The kidney burden of mercury was estimated to be 42.0~42.9 ㎍ in male and 55.5 ∼57.1 μg in female.

A Study on the Physicochemical Properties Alteration of Aloe Saponaria Fermentation

Kweon, Do-Yeong,Kang, Min-Woo,Park, Jong-Min,Kim, Jong-Soon,Kwon, Soon-Goo,Choi, Won-Sik The Korean Society of Industry Convergence 2020 한국산업융합학회 논문집 Vol.23 No.6

This research focuses on the physicochemical characteristic of fermentation of Aloe Saponaria. The fermentation process applied in this study had 2 variation, depends on the aloe part as the materials (bottom, middle, and tip) and the initial sugar content (24% and 0%) used. Tests are conducted using uinkin fermented powder, sugar, salt, and distilled water as fermenting agent. The results indicate that change in physicochemical properties of aloe's skin was larger than in aloe's gel as fermentation materials. In contrast, there was no significant change in aloe's leaf during the process. A lso, aloes with intial sugar condition of 24% show better results than which without sugar addition in fermentation.

Symbolic Red & Natural Green in Public Environment

Yeong Jae KWEON 한국색채학회 2022 International Invitation Exhibition of Color Works Vol.- No.-