영일니암지대(迎日泥岩地帶) 식생불생육지(植生不生育地)의 토양성질에 관한 연구

정인구 한국임학회 1979 한국산림과학회지 Vol.43 No.1

1. 영일 이암지대에는 제3기층의 연질암으로서 기암이 양파풍화형태를 이루고 있으므로 일단 황폐되면 건조가 심하여 임목생장이 불량한 토양이었으나 식혈을 깊게 파고 비료를 충분히 사용함으로써 이암지대 식생조성이 가능하다.(73'년도 임학회 발표) 2. 그러나 이암중에서도 영일 및 의창지구에 간혹 식생이 전혀 생육할 수 없는 극소 지형이 있으므로 이 지역의 토양을 분석한 결과 반토질 토양으로서 pH 2.1∼3.0 가용성 Al 0.15∼0.3%, SO₄ 0.400∼1,452ppm이었다. 3. 즉 pH가 초강산성으로 인하여 Al의 함량이 많아지고 SO₄가 지질에서 용출되는 극소지형에서는 식물생육이 불가능한 것임이 밝혀졌다. 4. 또한 초강산성으로 인하여 토양중의 P, Ca, Mg, Mo의 성분이 이용할 수 없게 됨으로 부족하게 되며 반면에 Al, Mn이 과잉흡수 됨으로 인하여 과잉독해(Toxicity) 작용을 일으켜 식물이고사하게 된다. 5. 이암지대의 여하한 토양에서는 Al 20ppm이상에서는 불용성인 산알미늄(AlPO₄)이 생기므로 인산 결핍증이 뚜렷이 나타난다(안고초, 개솔새 아까시나무) 6. 보통 토양중의 유황 함량은 10∼15ppm 정도가 식물 생육에 양호하나 본 지역에는 SO₄ 1,452ppm 까지도 검출됨으로 pH 2.1의 초강산성이 된 것이다.

밤나무 생장 및 밤수량에 미치는 시비효과(施肥效果)에 대한 연구

정인구,서호석,강창호 한국임학회 1981 한국산림과학회지 Vol.51 No.1

本 試驗은 20萬ha나 되는 밤나무 造林地에 對한 合理的인 土壤管理를 爲한 施肥試驗으로서 그 結果는 다음과 같다. 1. 施肥水準에 따라 밤나무 生育上에 差異가 있었으며 肥種을 달리한 境遇도 同一水準間에는 生育上에 差異가 있었으나 밤나무 專用複肥가 落果率을 顯著히 減하였다. 卽, 落果率은 專用複肥區 0.2∼0.7%, 一般複肥區 37∼50%, 單肥配合肥料區가 46%, 無施肥區, 62%이었다. 따라서 成熟結果가 많아져서 專用複肥區 63∼82毬果/本, 一般複肥區 25∼39 毬果/本, 單肥配合區 26毬果/本, 無施肥區 12毬果/本 이었다. 2. 밤 收穫量도 專用複肥區中 標準區가 2,888g/本, 倍量區가 3,307g/本으로서 가장 많았으며 一般 複肥區中 標準區에서 467g/本, 倍量區가 1,173g/本이었으며 單肥配合區 151g/本을 生産하였다. 3. 1980年度의 밤收穫은 無施肥區, 一般複肥標準區, 單位配合區에서는 1979年度 밤收量 보다도 적은 것은 1980年度에 日氣不順, 日照量 不足 現象인 것으로 思料되나 施肥量이 많은 倍量區와 專用複肥區에서는 日照量 不足 現象을 克服하고 增收되었으며 特히 專用複肥區에서는 3倍以上 밤이 增收되었다.

밤나무 시비시험 (Ⅱ) - 일조량부족과 (日照量不足) MgO 의 시비효과 -

정인구,강신우,이명선 ( In Koo Chung,Sin Woo Kang,Meong Sun Lee ) 한국산림과학회 1982 한국산림과학회지 Vol.58 No.1

During the two-years(1979 to 1980) fertilization trial on 4-year-old chestnut tree plantations. total insolation was diminished in 1980 because of unseasonable weather. In every fertilization treatment plot, especially in the NPK-fertilized plot with mannesium, growth of trees and yield of chestnuts have been increased significantly. The results obtained are as follows: 1) The growth in the NPK-fertilized plot with boron and magnesium was 20 percent higher than in plots fertilized with NPK alone. 2) Although there was some frost damage to trees on November 14, 1979, the 1979 weather was otherwise normal and daily insolation averaged 7 hours from June through september, The 1979 fertilization indices for chesnut yield were 167 for NPK with boron and 207 for NPK with magnesium, as compared with the base index of 100 for NPK alone. 3) In 1980, the second year of the fertilization trial, unseasonable weather decreased the average daily insolation from June through September to 3.8 hours. Under such conditions, the fertilization indices for chestnut yield were 620 for NPK with boron and 741 for NPK with magnesium, and Boron, as compared to the base index of 100 for NPK alone; i.e. the yields of plots treated with NPK and magnesium were 21 percent higher than for plots with NPK and boron and 7 times the yields for plots with NPK alone, But in the trial plot of NPK, yield of chestnut in 1980 decreased compared with 1979, 4) All test plots had natural magnesium levels lower than 0.8me/100gr., and the treatments with NPK and magnesium would have been less apparent on soils with higher magnesium level. The spectacular effects of treatment with NPK and magnesium during periods of low insolation may result from increased chlorophyll production and corresponding increases in active carbon assimilation, which should play an important role in carbohydrate formation.

전자빔 리소그래피에서의 레지스트 내부 에너지 분포에 대한 전산모사 프로그램의 제작

정인구,정희준 한양대학교 이학기술연구소 2007 이학기술논문지 Vol.10 No.-

전자소자의 집적화에 대한 계속적인 요구를 해결할 수 있는 반도체 소자 미세 패턴 제작의 핵심은 lithography 기술이다. 여러 가지 패턴형성 방법 중에 가장 강력한 나노패터닝 기술인 electron beam lithography 방법의 경우 복잡하고 반복적인 전자와 resist 구성 원자의 산란을 고려해야 하므로 최종적인 패턴의 정확한 예측 및 노광 조건의 최적화에 힘든 문제가 있다. 본 논문에서는 이러한 문제점을 보완할 수 있는 Monte Carlo method를 이용하여 electron beam lithography 에서의 resist 내부 에너지 분포 형상에 대한 전산모사 프로그램을 제작하였다. 결과로서 전자빔의 가속전압, 전자빔의 입사량, 기판과 기판위에 입혀진 resist 구성 원자의 종류 및 밀도에 따른 resist 내부 에너지 분포의 변화를 알 수 있었다. As one of key technological lithography tools, electron beam lithography requires considerably complicated multiple electron scattering process to predict the final pattern formation and the corresponding processing condition. In this paper, we developed a simulation software to show the energy distribution inside resist materials by employing Monte Carlo method The simulation information renders us to predict the pattern shapes and its modification as a function of electron acceleration voltage, beam dose and resist material composition.

한국의 대표적인 산림토양통에 (山林土壤統) 대한 중요 조림수종의 (造林樹種) 시비효과 (施肥效果) 분석에 관한 연구 (Ⅰ)

정인구,김창호 ( In Koo Chung,Chang Ho Kim ) 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1

This experimentation aims to study on the characterics of tree growth by forestry land soil system and the effect of applied fertilizer by kind of tree for obtaining basic data on application of fertilizer to forestry land and to further investigate the restriction factor of tree growth by soil system for promoting more effective application of fertilizer to forestry area. 1. The characteristics of tree growth by soil system showed that tree growth was worst on erosive soil, bad on red or red and yellow soil and generally good on brown soil. 2. With regard to Black Locust, the restriction factor of its growth appeared the content of P₂O_5 in the soil and the less the content of P₂O_5 is in the soil, the worse its growth was and its growth was bad on clay soil. 3. The growth of pinus seems closely related with the content of K₂O in the soil and the growth of PH was bad on neutral or alkali soil and good on weak-acid soil. Its growth greatly depended upon the content of OM or FN. 4. As Suwon Poplar is a kind of tree requiring for a special soil, its growth required for fertile soil and the content of O. MN P₂O_5 K₂O was proportional to its growth. 5. The growth of Black Locust, pinus and Suwon Poplar was good on the soil containing much sand but bad on the soil containing much clay.

한국산림토양의 이화학적성질과 임목성장에 관한 연구

정인구 한국산림과학회 1978 한국산림과학회지 Vol.39 No.1

N/A

밤나무 시비처방(施肥處方)과 밤증수(增收)에 관한 연구

정인구,김규헌,심경용,홍연표 한국임학회 1981 한국산림과학회지 Vol.51 No.1

科學的인 施肥處方으로 밤나무 造林地에 對한 土壤管理技術의 底邊擴大 普及과 農山村의 所得增大를 圖謀하고서 1979年부터 1980年까지 2年間 實施한 結果는 다음과 같다. 1. 밤나무 造林面積은 1968∼1980年까지 196,399ha이니 밤收穫量은 1979年度에 42,000M/T, 1980年度에 44,000M/T에 不過한 實情이며 ha當 平均 收穫量은 224㎏으로서 2.8입/ha에 反하여 施肥示範團地의 밤收穫量은 1979年度 選定分은 16.8입/ha이고 1980年度 選定分은 平均 11.0입/ha이었다. 2. 糧穀 933余萬石을 導入하는 比際에 約 200,000ha나 되는 밤나무 造林地를 科學的인 肥培管理를 撤底히 實施하여 밤收穫의 劃期的인 增收로서 農山村의 山地所得增大는 勿論 代用食品 開發에도 크게 寄與하도록 해야만 할 것이다.

현행 중등 체육 교육과정의 체조 교육내용 고찰

정인구 한국교원대학교 학교체육연구소 1997 학교체육연구소지 Vol.4 No.1

경력단절여성의 계획된 우연역량이 창업의지에 미치는 영향에 관한 연구 :개인 환경요인의 조절효과를 중심으로

정인구,양동우 한국벤처창업학회 2020 벤처창업연구 Vol.15 No.5

Recently, Start-ups has been emphasized as part of a career-breaking women returning to society policy. To this Policy, the relationship between the planned happenstance skills and the entrepreneurial intentions of a career-breaking woman was investigated, and the successful role model as an individual environmental factor and the moderating effect of social support forces was verified. The results of the survey analysis of 139 women who have experienced career cut-offs in the metropolitan area and Dae-gu and Gyeong-buk are as follows; First, the planned happenstance skills of career-breaking women affect a positive effect on the entrepreneurial intentions. Second, it was found that the moderating effect of the successful role model does not appear in the relationship between the planned happenstance skills of a career-breaking woman and the entrepreneurial intentions. Third, it was found that there was no moderating effect of the social support forces in the relationship between the planned happenstance skills and the entrepreneurial intentions of a career-breaking woman. Last, It was found that the entrepreneurial intentions, which is a personal psychological characteristic for career-breaking women is more directly affected than personal environments. In order to increase career-breaking women's the entrepreneurial intentions, it is necessary to develop psychological skill-building programs which can enhance the accessibility of start-ups and raise the perception of Start-ups. In addition, it is necessary to continuously expand exposure opportunities such as role models and success stories which succeeded in starting a business after a career break and to expand social support forces that can help with courage, advice, and change management to discover opportunities of start-ups. 최근 경력단절여성의 사회 복귀 정책의 일환의 하나로 창업으로의 진로가 강조되고 있다. 이를 위해 본 연구에서는 경력단절여성의 계획된 우연역량이 창업의지에 미치는 영향에 대하여 연구하였다. 개인의 환경요인인 성공적 역할모델과 사회적 지원세력의 조절효과를 검증하였다. 경력단절 경험이 있는 여성 139명을 대상으로 실증분석 한 결과는 다음과 같다. 첫째, 경력단절여성의 계획된 우연역량이 창업의지에 긍정적 영향을 주었다. 둘째, 경력단절여성의 계획된 우연역량과 창업의지와의 관계에서 성공적 역할모델은 조절효과는 나타나지 않는 걸로 검증되었다. 셋째, 경력단절여성의 계획된 우연역량과 창업의지와의 관계에서 사회적 지원세력의 조절효과는 나타나지 않는 걸로 검증되었다. 경력단절여성들에게는 개인 환경요인의 조절효과 보다는 개인의 심리적역량인 계획된 우연역량이 창업의지에 직접적인 영향을 미치는 것으로 확인되었다. 경력단절여성의 창업의지를 높이기 위해서는 창업의 접근성을 높이고 창업에 대한 인식을 높일 수 있는 심리적 역량강화 프로그램의 개발이 필요하다. 또한, 경력단절여성의 창업의지의 고취는 계획된 우연역량을 향상시키는 노력과 동시에 경력단절 후 창업에 성공한 역할모델과 성공사례 발굴 등의 노출 기회를 지속적으로 확대할 필요가 있고, 창업기회를 발견할 수 있도록 용기, 조언, 변화 관리에 도움을 줄 수 있는 사회적 지원세력을 확대해 나가는 것이 필요하다.

황폐임야가 수해참상에 미치는 영향 : 천보산과 인접 죽엽산을 중심으로 Observed at Chonbo and the neighbouring Mt . Jook - yop area

정인구 한국임학회 1966 한국산림과학회지 Vol.5 No.1

1. On 13 September 1964 a storm raged for 3 hours and 20 minutes with pounding heavy rainfalls, and precipitation of 287.5 mm was recorded on that day. The numerous landslides were occured in the eroded forest land neighbouring Mt. Chunbo, while no landslides recorde at all on Mt. Jookyup within the premise of Kwangnung Experiment Station, the Forest Experiment Station. 2. Small-scalled Landslides were occured in 43 different places of watershed area (21.97 ha.) in which the survey had already been done, in and around Mt. Chunbo (378 m a.s.l.). The accumulated soil amount totaled 2,146,56 ㎥ due to the above mentioned landslides, while soil accumulated from riverside erosion has reached to 24,168.79 ㎥, consisting of soils, stones, and pebbles. However, no landslides were reported in the Mt. Jook yup area because of dense forest covers. The ratio of the eroded soil amount accumulated from the riversides to that of watershed area was 1 to 25. On the other hand, the loss and damage in the research area of Mt. Chonbo are as follows: 28 houses completly destroyed or missing 7 houses partially destroyed 51 men were dead 5 missing, and 57 wounded. It was a terrible human disaster However, no human casualties were recorded at all, 1 house-completly destroyed and missing, 2 houses-partially destroyed. Total : 3 houses were destroyed or damaged, in The area of Mt. Jookyup 3. In the calculation of the quanty of accumulated soil, the or mula of $quot;V=1/3h (a+√ab+b)$quot; was used and it showed that 24, 168.79m of soil, sands, stones and pebbles carried away. 4. Average slope of the stream stood 15 at the time of accident and well found that there was a correlation between the 87% of cross-area sufferd valley erosion and the length of eroded valley, after a study on regression and correlation of the length and cross-area. In other works, the soil erosion was and severe as we approached to the down-stream, counting at a place of average (15。1′) and below. We might draw a correlation such as $quot;Y=ax-b$quot; in terms of the length and cross-area of the eroded valley. 5. Sites of char-coal pits were found in the upper part of the desert-like Mt. Chunbo and a professional opinion shows that the mountain was once covered by the oak three species. Furthermore, we found that the soil of both mountains have been kept the same soil system according to a research of the soil cross-area. In other words, we can draw out the fact that, originally, the forest type and soil type of both Mt. Chunbo (378m) and Mt. Jookyup (610m) have been and are the same. However, Mt. Chunbo has been much more devastated than Mt. Jookyup, and carried away its soil nutrition to the extent that the ratios of N. P₂O_5K₂O and Humus C.E.C between these two mountains are 1:10:1:5 respectively. 6. Mt. Chunbo has been mostly eroded for the past 30 years, and it consists of gravels of 2mm or larger size in the upper part of the mountain, while in the lower foot part, the sandy loam was formulated due to the fact that the gluey soil has been carried and accumulated. On the hand, Mt. Jookyup has consitantly kept the all the same forest type and sandy loam of brown colour both in the upper and lower parts. 7. As for the capability of absorbing and saturating maximum humidity by the surface soil, the ratios of wet soil to dry soil are 42.8% in the hill side and lower part of the eroded Mt. Chunbo and 28.5% in the upper part. On the contrary, Mt. Jookyup on which the forest type has not been changed, shows that the ratio in 77.4% in the hill-side and 68.2% in the upper part, approximately twice as much humidity as Mt. Chunbo. This proves the fact that the forest lands with dense forest covers are much more capable of maintaining water by wood, vegitation, and an organic material. The strength of dreventing from carring away surface soil is great due to the vigorous network of the root systems. 8. As mentioned above, the devastated forest land cause not only much greater devastation, but also human loss and property damage. We must bear in mind that the eroded forest land has taken the valuable soil, which is the very existence of origin of both human being and all creatures. As for the prescription for preventing erosion of forest land, the trees for furtilization has to be planted in the hill,side with at least reasonable amount of aertilizer, in order to restore the strength of earth soil, while in the lower part, thorough erosion control and reforestation, and establishments along the riversides have to be made, so as to restore the forest type.