한국산의 죽류(竹類)에 관한 연구(제10보) : Phyllostachys reticulata 의 굴곡시험에 대하여

정현배 한국임학회 1967 한국산림과학회지 Vol.6 No.1

The bamboo is a plant whose culm grows straight up. This growing characteristics has been widely utilized in industry and craft. But the developments of handcraft making and horticultural techniques in recent years become to demand the bent bamboo culms. This study has been conducted at the experimental grove located at Hyundae Ri, Okkye Myun, Myungju Gun, Kangwon Do since 1960. Although it has been known that the secret for which bamboo shoots complet growth within 40 odd days lies in their rhizomes, this writer felt the bamboo culm sheath might be another factor in addition. Hence some were stripped of sheath in this bending study as the following : 1. Time of sheath stripping. 2. Direction of sheath stripped for arbitrary bending. 3. Accuracy of bending following the size (growth) of bamboo shoots. The following results were obtained : 1. Bamboo shoots begin to appear in April. But the bamboo shot up in June showed the best bending result with 68% of bending efficiency. 2. Bending of the culm was facilitated by stripping off the sheath located on the side of the direction toward which bending was desired. By doing this, the culm could be bent as much as 90 degrees. But the culm totally stripped of sheath could be bent in any direction. 3. In order to determine the accuracy of bending of bamboo shoots growing, sheath were stripped off the shoots of which height ranged from 10 centimeter to 150 centimeters. The shoots with height of 110 centimeters showed the best result with 90%.

사각죽조성(四角竹造成)에 관(關)한 연구(硏究)

정현배,Chong, Hyon-Pae 한국산림과학회 1970 한국산림과학회지 Vol.10 No.1

한국(韓國)에 산(?)하는 죽종(竹種)은 19종(種)이 분포(分布)되고 있으나 이중(中) 유용종(有用種)은 수종(樹種)에 불과(不過)하며 그 중(中)에서도 Phyllostachys속(屬)이 주(主)로 해태(海苔)의 생산원재(生?原材) 또는 죽세가공품(竹細加工品)의 재료(材料)로서 다각도(多角度)로 사용(使用)되고 있어 69년도(年度)에만도 전라(全羅) 남도(南道)에서 가공품(加工品)을 생산(生?)하여 10여국(餘國)에 2억(億)4백만(百萬)원의 외화(外貨)를 벌어 들였다. 동남아(東南亞)의 특산(特?)인 죽류(竹類)는 문화(文化)의 발달속도(發達速度)에 따라 가공품(加工品)의 생산기술(生?技術)이 향상(向上)되고 재료(材料)의 생산(生?)이 증가(增加)되면 국가(國家)의 산업발전(?業發展)에 도움이 되리라 믿어 본인(本人)은 원형(圓形)으로만 사용(使用)하던 죽(竹)을 사각(四角)으로 조성(造成)하여 거기에 아름다운 무늬를 삽입하여 죽세가공품(竹細加工品) 생산(生?)에 또는 건축(建築)에 있어서 실내(室內)장식등에 크게 사용(使用)될 수 있으리라 믿어 이 시험(試驗)에 착수(着手)하였든 바 그 결과(結果)로서 죽순(竹筍)의 목통직경(目通直經)은 클수록 성적(成積)이 좋아 직경(直經) 7.5cm는 72%의 성공율(成功率)을 나타냈으며(Fig. 5참조(參照)) 죽순(竹筍)의 길이는 30cm정도(程度)의 것이 100%의 사각죽(四角竹)이 완성(完成)되었다(Fig. 6참조(參照)). 고정(固定)되어가는 강도(强度)의 변화(變化)는 기일(期日)이 지날수록 강(强)하여져갔으며 우기(雨期)와 Lux의 차(差)에는 별지장(別支障)이 없었다(Fig. 7. 8참조(參照)). 임의(任意)로 죽재(竹材)를 생장당시(生長當時)에 구부리기 위(爲)한 굴곡시험(屈曲試驗)은 90도(度)까지는 구부릴 수 있었다.(Fig. 10) 약품처리(藥品處理)에 의(依)한 무늬삽입 시험에 있어서는 약품(藥品)의 종류(種類)와 배합방법(配合方法)(Table. 2)에 따라서 Fig. 12. 13. 14와 같이 무늬에 차이(差異)가 생겼으나 착색(着色)과 삽입에는 완전(完全)히 성공(成功)하였다. 이 결과(結果)에 따라 앞으로 사각죽(四角竹)을 다량생산(多量生?)하면 가공품제작(加工品製作)에 크게 이용(利用)되어 국가산업발전(國家?業發展)에 이바지 되리라 믿는다. There are 19 species of bamboo in Korea, among which few are of commercial value. The Phyllostachys has wide range of utilization, for sea weed production, industrial production of various bamboo wares, etc. The total export from Chenla-Namdo to some more than ten countries was recorded 204,000,000 won worth in 1969. As civilization develops so does the techniques of bamboo works, and they in turn accelerate the demand for bamboo wood of better quality. In the light of this trend, the author attempted to make bamboo plants to develope a quadragular culm with elaborate design as disired instead of the original round one, with the expectation that it might be widely welcomed by hand workers, interior decorators. Here are some facts found out in this experiment: 1). The greater the diameter of the shoot at the eye level was, the better result was brought, and as shown in Fig. 5 the rate of success was 72% with the shoots of 7.5 cm thick. 2). The shoots of 30 cm in length showed 100% of success, developing into a desired quadrangular culms without fail(See Fig. 6). 3). The intensity of wood fiber increased as time lapsed, without receiving any influence by the weather (See Fig. 7, 8). 4). During the growing, the culm proved to be flexible enough to bend up to 90 degree (See Fig. 9). 5). In an attempt to promote the value of bamboo by decoration, the author tried to impress rectangular indents on the culm. The indention using a qudangular board 1cm smaller in width than the shoot diameter gave 100% success (See Fig. 10). 6). Design experiment was also successful both in coloration and impressing and the resulting designs delicately depended on the kinds of chemicals used and their combination (Table 2) (See Fig. 12, 13, 14). With the above mentioned findings, the author concludes that the mass production of quadrangular bamboo culm is quite a promissing as an new industry to develope bamboo works to a more valuable one. This research was carried out with the research fund provided by the Ministry of Education in 1969.

[주요 발언] “주민자치다운 주민자치 이뤄지도록 힘쓸 것”

정현배 한국자치학회 2020 월간 주민자치 Vol.105 No.-

xPopulus albaglandulosa 와 그 양친의 (兩親) Pollen Mother Cell 의 Meiosis 에 관한 연구

정현배,김말숙,김정석 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1

N/A

Studies on Meiosis of PMC's in P . alba × glandulosa and Their Parents

정현배(Hyon Pae Cheung),전상근(Sang Kun Chon),김말숙(Mal Sook Kim),김정석(Chung Suk Kim) 한국산림과학회 1979 한국산림과학회지 Vol.45 No.1

N/A The chromosome behavior and it`s synapsis in the meiosis of pollen mother cell were studied on Populus alba L. as a female parent tree, Populus glandulosa Uyeki as a male parent tree and their hybrid, Populus alba x glandulosa. 1. At metaphase I, the number of nuclear plates with early separation chromosome were observed with the lowest proportion of 11.0% in Populus glandulosa and with the highest proportion of 13.0% in Populus alba x glandulosa. 2. At metaphase II, early separation chromosomes appeared with the frequency of 11.0% in Populus alba x glandulosa. But the frequency was not different with those of the parental trees. 3. At anaphase I, lagging chromosomes appeared with some high rate of 11.6% in Populus alba x glandulosa and yet the number of chromosome bridges in populus alba x glandulosa almost were not different with the partental trees. 4. At anaphase II, lagging chromosomes appeared with some high frequency of 10.2% in Populus alba x glandulosa and the chromosome bridges in Populus glandulosa appeared with the highest frequency in all studied trees. 5. The frequency of abnormal pollen sporad was the highest value of 8.2% in Populus alba x glandulosa among the studied trees. With the results, it might be assured that the chromosome segregation and it`s synapsis behaved normally in Populus alba, Populus glandulosa and Populus alba x glandulosa, and so all the studied trees could produced normal pollens.

한국산 죽류 (竹類) 에 관한 연구 ( 제6보 )

정현배 (Hyon Pae Chong) 한국식물학회 1964 Journal of Plant Biology Vol.7 No.2

CHONG, Hyon Pae (Chunchun Agricultural College) Studied on the Bamboo in Korea Ⅵ. On precreation of up-land Bamboos. Kor. Jour. Bot. Ⅶ(2):9-13. 1964. As to the up-land bamboos. I have rerorted, in my previous works, that Korea has two species in the genus or Pseudosasa, four in Pleioblastus, and other four in Sasa. In the present work, I dealt with Sasamorpha Purpurascens Nakai var. Borealis Nakai which proved the strongest vitality of all up-land bamboos yet found in various up-lands of Korea, and which might be most important from the utility view-point. This report is chiefly on its procreation. Sasamorpha Purpurascens Nakai var. Borealis Nakai can be found almost everywhere throughout the country, and its leaves and stems are much used in farms in various forms of manufacture. It is aiso welcomed as the feed for livestocks and as cover plants for aforestation, especially as the excellent means of errosion control on devastated hill sides. It is also widely accepted that it will provide, in the immediate future, abundant sources for the up-land bamboo pulp. As the first phase of my research plan on the subject, I undertook to determine the possible best way of its procreation, for which were included the experiments of inducing the growth of subterranean stems, the entire stand cutting, transplanting, reclaimed planting after burning etc. in order to observe the plant elongation, growing condition, climatical effect etc. What has been found out so far given here as follows: 1) Of the various sections of the country, Mt. Odae area gives out the most excellent Sasamorpha Purpurascens Nakai var. Borealis Nakai (the leaf weight of which is 450 gr.) and Taekwanryong area comes the next class. This species can be transplanted anywhere in the South Korea. 2) The elongation of S. p. Nakai var. Borelais begins at around the middle of May and almost completely stops by the 20th of August. 3) The best suited transplanting season is supposed to be Feb. -April, for those trantplanted during that period proved 100% of success. The next best transplanting season may be October. Rain fall does not have so much effect on transplanting as the growing season does. 4) In inducing the subterranean stems, the frowing season can be ignored. The root expansion is most amimated during the months of April-June, the most active season for water absorption. Those stems induced during the winter proves more rapid growth. 5) The entire stand cutting shows greater growth than the reclaimed planting after burning and that, the growth is most vigorous during May-July, whereas during the hottest months of Aug-Sept the growth shows only 5 ㎝. The new shoots grow slower both in the field of entire stand cutting and in the field of reclained planting after burning than in the otherwise fields.

한국산의 죽류에 (竹類) 관한 연구 ( 제5보 ) Phyllotachys reticulata ( 참대 ) 의 연명식별법에 대하여

정현배 (Hyon Pae Chong) 한국식물학회 1962 Journal of Plant Biology Vol.5 No.2

CHONG, Hyon Pae (Chonchun Agricultural Coll.) Studies on the Bamboo in Korea. Part 5. A trial method of judging the age of Phyllotachys reticulata. Kor. Jour. Bot. V(2): 13-16. 1962. Without annual ring, the bamboo can not measured by ordinary mensuration method. Other methods yet tried failed to prove the reliability. That means, as often pointed out, that the bamboo lumbering (including forest management) is not free from being precarious. Noting the fact, this author performed a series of comparative observations on a group of bamboos in different stages of growth in order to find out if there is any surer mensurability. A conclusion has been reached that the external feature of joints of branch has close connection with the age of bamboo, that the joints of the third major branch counting from the ground have, as shown in the first table, the most probability, its mean being 94.3 per cent, and that those in ages of 3 to 5 have the probability of 100 per cent, showing the far greater accuracy as compared with those in older ages. The above conclusion needs to be adjusted with the following findings; 1) When observed disregarding the joint-tongue(the remainder of the preceeding year`s sheath), the major branches show no better probability than the minor ones. 54 to 78 per cent of them shows no difference between them. Prebability is averaged by 60 per cent. 2) When in spring the old sheaths drop away from the joints, the new ones sprout out in their places and consequently the joints present an appearance of a kind of joint-ring. But since this joint-ring does not always exactly represent the plant age, some other method muat be sought after to count the age. This author noticed what is called joint-tongue the tongue-like part of triangle shape which remains at the base of the sheath of the fallen leaf. A fact was ascertained that when the number of the joint-ring coincides with that of the remaining joint-tongue, it exactly indicates the age of the plant.

한국산의 죽류에 (竹類) 관한 연구 - 죽의 (竹) 지하경에 (地下莖) 대하여 -

정현배 ( Hyon Pae Chong ) 한국임학회 1962 한국산림과학회지 Vol.2 No.1

그래픽스 API를 이용한 복셀화

정현배(Hyeon-Bae Jeong),송주환(Ju-Whan Song),최성희(Seong-Hui Choi),권오봉(Ou-Bong Gwun) 한국정보과학회 2001 한국정보과학회 학술발표논문집 Vol.28 No.2Ⅱ

본 논문은 3차원 그래픽스 시스템이 기본적으로 제공하는 프리미티브인 면(surface), 솔리드(solid)의 복셀화 및 이들을 결합한 CSG 표현의 복셀화에 대하여 고찰한다. 복셀화는 서피스로 표현된 물체의 빈 내부를 복셀로 표현하여 내부를 채우는 과정이다. 본 방법의 특징은 PC 플랫폼이 제공하는 그래픽스 API인 OpenGL을 이용하여 면, 솔리드 등을 고속으로 복셀화하여 이들을 기본 물체로 하여 불리언연산에 의해서 간단히 새로운 물체를 만들고 볼륨 환경에서 이들을 단일화된 방법으로 렌더링할 수 있는 것이다.

한국산의 죽류에 (竹類) 관한 연구

정현배 (Hyun Pae Chong) 한국식물학회 1959 Journal of Plant Biology Vol.2 No.1

1. The plant communities on Mt. Sulak, a typical alpine mountain in central Korea was researched from the standpoint of ecological survey. 2. The plant on this mountain can largely be classified into 2 categories, the warm zone (below 1100m) and the frigid zone. The former is again classified into a broad-leaved tree formation and a needle-leaved tree formation, and the latter is classified into a [broad-leaved tree formation and needle-leaved tree formation, and shrub formation. 3. The broad-leaved tree formation in the warm zone can largely be classified into a Carpinus laxiflora-syringa palibiniana var. lamibayashi association(1), a Carpinus erosa-Acer Pseudo-sieboldianum association(2), and a Quercus mongolica- Tripterygium] Regelii association(3). 4. The needle-leaved tree formation in the warm zone can also largely be classified into a Pinus densiflora- Miscanthus sinensis association(4), Abies holophylla- tripterygium regelii association (5), Pinus koraiensis- Rhododendron cshlippenbachii association(6), In the association(4), the canopy of the Pinus densiflora is gradually being occupied by the Quercus mongolica which is one kind of broad -leaved trees. 5. We can fully see a DryoPteris type of the flour layer plant type in the association (3) and also see a Sasamorpha type in the association (5). 6. The broad-leaved tree formation in the frigid zone can largely be classified into Quercus mongolica- Qhododendron schlippenbachii association (7) and Betula chinensis- Qhododendron schlippenbachii association (8). The constituents of tree and subtree layers in (7) and (8) associations are similar to those association (3), but the constituents of the shrub layer are different from those of association (3) due to the difference in height. 7. The needle-leaved formation in the frigid zone can largely be classified into Thuja koraiensis- Rodgersia podophylla var. viritis association (9) and Abies nephrolepis-Acer tschonoskii var. rubripes asscciation (10). The species of alpine plants or subalpine plants are gradully increasied in this formation. 8. The shrub formation can atso largely be classified into a Rhododendron mucronulatum- Patrinia saniculaefolia association (11) and Pinus pumila association (12). Association (12) has 1argely developed on the windy place. Association (12) was burned due to the bombing during the Korean war, but now we recoginized there occured an invasion of Tripterygium Regelii in such a Place. 9. The herb layer species which constitute the shrub formation are mostly alpine or subalpine plants of small size, and their kinds are also very few. 10. The growth of the Moss layer is especially good because of the varied conditions of the habitat. The kinds which can easily be seen are the genus of Thuidium, Haplocladium, Brachythecium, Macromitrium, Holomitrium, Atrichun, Schwetschkeopsis, Grimmia, Hedwigia, Rhynchostegium, and Mnium. 11. The genus of the Sphagnum densly grows like a mat at the acid and moisturous place above 1100m. The authors should express their thanks to father. Yang Kisup, Dean of Catholic Medical College, Prof. Yoon Doksuen, from their valuable advice. Thanks are also due to Prof. Numata, Chiba University, Prof. Takagi, Nagoya University and Prof. Ando, Hiroshima University in Japan for his kind help and identification of Bryophytes.