송이 (松이) ( Armillaria matsutake Ito et Imai ) 인공재배에 관한 연구

박종열,박광우 ( Chong Yawl Park,Kwang Woo Park ) 한국산림과학회 1980 한국산림과학회지 Vol.50 No.1

This experiment was carried out to know the effects of artificial apawning of Armillaria matsutake in the Pinus densiflora stands. The results obtained were as followed: 1. The inoculation experiment resulted in only the development of hypha in the spore-spread plot and there appeared 2 fruit bodies in the spore injection plot and 4 fruit bodies in the hypha-transplanted plot. 2. The spore flushing plot method was considered a recommendable one in view of labor problem. 3. It was seemed that Armillaria matsutake was not a commensal fungus but a parasitic ectotrophic mycorhiza to pine trees since pine trees in the Armillaria matsutake-appearing plot grew remarkably slow comparing with the non-appearing plot. 4. Armillaria matsutake appearance only in 20 to 60 year-old pine trees seems to have a correlation with a special matter. Therefore the experimenter thinks that Armillaria matsutake spores must be inoculared only with 20 to 60 year-old pine trees.

정색반응에 (呈色反應) 의한 싸리속의 분류학적 연구

박종열(Chong Yawl Park),이창복(Tchang Bok Lee) 한국산림과학회 1972 한국산림과학회지 Vol.14 No.1

It has intended to identify the members of the Genus Lespedeza in Korea by a chemical colour reaction, and the following five species of the Genus Lespedeza grown in the garden have been used in this experiment. 1. Lespedeza bicolor Turcz 2. Lespedeza bicolor var. melanantha (Nak.) T. Lee 3. Lespedeza cyrtobotrya Miq. 4. Lespedeza japonica var. intermedia Nakai 5. Lespedeza maritima Nakai 6. Lespedeza maximowiczii Schneider 7. Lespedeza maximowiczii var. tomentella Nakai A few drops of each solution of K₂Cr₂O_r. Fe SO₄·7H₂O, Fe Cl₃, KH₂OO₄, KMnO₄, NH₄OH, and HCl was added to the methanol extracts of wood dust to get the specific colour reaction. HCl-infused wood was also used for the identification of L. bicolor var. melanantha and L. bicolor. The results can be summarized as the following key; 1. Chrome lemon by K₂Cr₂O_7 = 2 1. Sun flower yellow by K₂Cr₂O_7 == Lespedeza maximowiczii var. tomentella Nakai 2. KH₂PO₄ System white by KH₂PO₄; golden yellow by FeCl₃ = 3 2. Cream colour by KH₂PO₄ = 6 3. Oyster white by NH₄OH; corn colour by FeSO₄·7H₂O = 4 3. Cream colcur by NH₄OH = 5 4. Van dyke brown by KMnO₄; sea shell pink by HCl injection under heating == Lespedeza japonica var. intermedia Nakai 4. Sepia colour by KMnO₄; honey colour by HCl injection under heating == Lespedeza maritima Nakai 5. Golden red by FeSO₄·7H₂O; andover green by HCl-infused wood dust == Lespedeza bicolor var. melanantha (Nak.) T. Lee 5. Yellow ochre by FeSo₄·7H₂O; sand warm gray by HCl-infused wood dust == Lespedeza bicolor Turcz 6. Amber green by FeCl₃ == Lespedeza cyrtobotrya Miq. 6. Leather brown by FeCl₃ == Lespedeza maximowiczii Schneider

한국산 잣나무의 펄프화에 관한 연구 (Ⅰ) - 열처리가 크라프트 펄프화에 미치는 영향 -

박종열 ( Chong Yawl Park ) 한국산림과학회 1983 한국산림과학회지 Vol.61 No.1

This study was carried out to find the effect of heat treatment on the pitch content and the properties of the kraft pulp produced from Pinus koraiensis. In the results of this experiments, the heat treatment with 40℃ showed the best result in the yields and the pitch contents of kraft pulp of the woods from both artificial and natural stands. Other properties, however, were not improved. They were rather deteriorated with heat treatment. Therefore, it needs to select, the heat treatment conditions according to the properties of raw material, the pulping methods and the final use of pulp.

스테키히트 시험용 자동발색인지 시스템 개발을 위한 기초 연구(II) -자동 발색 인지 원리를 적용한 발색 자동인지시스템-

김재옥,김철환,박종열,권오철,Kim, Jae-Ok,Kim, Chul-Hwan,Park, Chong-Yawl,Kwon, Oh-Chul 한국펄프종이공학회 2005 펄프.종이기술 Vol.37 No.1

Stockigt sizing test, which is readily affected by individual tester's bias as well as testing conditions in recognizing red coloration, had to be modified to improve its reliability and reproducibility. The novel testing system with the automatic recognizing program of red coloration was developed with the auxiliary equipments including an automatic liquid dispenser and a specimen shifter. The analysis program used a hue value of a droplet image in recognizing a point of time on red coloration instead of RGB values that are not similar to human perception of color. Hue was more sensitive in recognizing the red coloration of a droplet than the other two factors, Saturation and Value. During the test, the program records the time consumed up to a specific hue value of a droplet on a specimen. Differently from the conventional test, the automatic test could obtain a reliable and reproducible sizing degree with a minor error. Furthermore, the Stockigt sizing degree measured by the automatic system showed great correlations with contact angle and Hercules sizing degree. It means that such great correlations will contribute to the development of an integrated measuring system capable of predicting contact angle, surface tension, surface energy and Hercules sizing degree of paper and paperboards through the Stbckigt sizing test. It was meaningful to note that the automatic system for Stbckigt sizing test might be able to used to predict contact angle, Hercules and Cobb sizing degree, based upon the high correlation coefficients.

색채 목가구 개발을 위한 천연염료의 이용에 관한 연구(제3보) -천연염색 밤나무 목재의 변색 방지-

문선옥 ( Sun Ok Moon ),김철환 ( Chul Hwan Kim ),김경윤 ( Gyeong Yun Kim ),정호경 ( Ho Gyeong Jung ),신태기 ( Tae Gi Shin ),김종갑 ( Jong Gab Kim ),박종열 ( Chong Yawl Park ) 한국목재공학회 2007 목재공학 Vol.35 No.3

輸入 인도네시아産材에 戴한 못(釘)의 引拔抵抗

洪秉和,朴鍾烈 慶尙大學校 1975 論文集 Vol.14 No.-

輸入 인도네시아産 6個 樹種에 對한 못(釘)의 引拔 抵抗試驗을 하여 얻은 結果는 다음과 같다. 1. 樹種別 引拔抵抗을 比較할 경우에 Eusideroxylon zwageri가 가장 크고 Kommpassia malaceensis, Sindora velutina, Shorea laevis, Shorea leprosula 그리고 Shorea assamica 順으로 나타났다. 2. 못(釘)의 打入長을 30mm와 20mm로 나눌 경우에 單位長에 對한 引拔抵抗은 打入長 30mm 경우가 컸다. 3. 打入面을 板目面, 柾目面, 木裏面 그리고 木口面으로 나눌 경우에 板目面에 打入할 경우가 引拔抵抗이 가장 크고 柾目面, 目裏面 그리고 木口面 順으로 나타났다. 4. 못(釘)의 引拔抵抗値는 比重에 크게 관여함을 알 수 있다. The withdrawal resistances of a nail on 6 imported Indonesian species of hard wood are as follows: 1. Of the comparative resistance on each species, Eusideroxylon zwageri(ULIN) has shown the greatest value, in turn, Koompassia malaccensis(MENGERIS), Sindora velutina(SINAMPAR), Shorea laevis(MERANTI BERAT), Shorea leprosula(MERANTI MERAH), and Shorea assamica(METANTIPUTIH). 2. Of the comparative resistance per unit on each piling length 20 mm and 30 mm, the latter shows the greater. 3. Among 4 sections, tangential section shows the highest value of resistance, radial section is the next, in turn inside section and cross section. 4. The specific gravity of wood specimen has great influence on the withdrawal resistance of a nail.

탄산칼슘의 첨가가 하이드로콜 보류시스템의 특성과 종이의 물성에 미치는 영향

박종열,이종우 경상대학교 농과대학 부속연습림 2001 演習林硏究報告 Vol.- No.11

A microparticle retention system of the hydrocol system have been used cationic polyacrylamide(C-PAM) and bentonite addition. This study describes the fines retention, drainage and formation of single polymer system and hydrocol system at precipitated calcium carbonate(PCC). This paper loaded PCC of various particle size and the amounts in the handsheet and measured their physical and optical properties. The results obtained are summarized as follows: 1. Single system was increased on the retention of PCC, but decreased on the drainage and formation. The hydrocol system of PCC addition was decreased more retention of PCC than single system at 0.5% C-PAM addition, but the retention was increased over C-PAM of 1.0%. that on the drainage and formation were much more increased than single system at 0.5% C-PAM addition. 2. The retention and drainage, increased as particle size of PCC, was increased but the formation was the same. As amounts of PCC was decreased, the retention, drainage and formation ware increased. 3. The hydrocol system on tensile index was much more increased than single system but those on tear index was much more decreased than hydrocol system. Both tensile and tear index was decreased but opacity was increased, as the retention of PCC increases. Tensile and tear index were decreased by the increase in both the particle size and amounts of PCC. Opacity was decreased, as the particle size of PCC being increased, but opacity was increased by the increase in amounts of PCC.

地被植物의 採種圃造成에 關한 硏究(第1報) : 播種時期가 種子生産에 미치는 影響 Effect of Sowing date on the Seed Yield of Ground Vagetation

朴鍾烈 慶尙大學校 1975 論文集 Vol.14 No.-

In order to investigate the optimum sowing date and seed yielding capacity of some valuable ground vegetation for the benifits of the establishment of seed farm, 12 different sowing dates with 10-15 days of intervals from beginning March 30 to October 18 were projected and seed yield capacities in each sowing date were examined. The results are summarized as follows. 1. The limited sowing date for both A. hilta and L. cuneata was estimated the date before May 30, for the seed production, while D. glamarata produced no seeds with in the trial year. 2. Highly significances of seed yield of A. hilta and L. cuneata were found between the different sowing dates and the maximum seed yield in the plot of the recording 72.9g, 87.4g for A. hirta and for L. cuneata. 3. Vegetative growth was inhibited when sowed later then July 1 for grasses except L. cuneata.

안료 혼합비가 도고액과 도공지 물성에 미치는 영향

김경동,박종열,김철환 경상대학교 농업생명과학연구원 2002 농업생명과학연구 Vol.36 No.2

본 연구는 도공액 설계에 있어서 안료의 종류를 달리한 도공액에서 클레이와 중질탄산칼슘의 혼합비가 도공액 및 도공지 물성에 미치는 영향을 분석하였다. 안료입자의 비표면적이 클수록 동일한 도공층 강도를 유지하기 위해서는 접착제 소요량이 많았으며 중질 탄산칼슘보다는 클레이가 접착제를 더 많이 요구되었다. 접착제의 혼합비율이 증가함에 따라 No.1 Clay의 고전단 점도는 증가한 반면 No.2 Clay는 감소하였고 GCC-95는 증가하는 경향이 있었지만 큰 변화를 보이지 않았다. 백지광택과 K&N 잉크 흡수성은 감소하는 경향을 나타내었으나 백색도는 아무런 변화를 보이지 않았다. Clay와 GCC-95가 혼합된 도공지의 물성은 중질 탄산칼슘 비율이 증가함에 따라 투기도, 백색도 와 K&N ink 흡수성은 증가한 반면 백지광택과 인쇄광택은 감소하였다. This study was carried out to investigate the effect of different kinds of coating pigments on the properties of coating colors and coated paper. The pigment with greater specific area consumed more binders in order to maintain the stable structure of a coated layer, and GCC required more binders than clay. While increased addition of coating binder with No.1 clay made a high shear viscosity raised, a high shear viscosity of No.2 clay was decreased and that of GCC-95 was rarely changed. Paper gloss and K&N ink receptivity were decreased and brightness was little changed. Brightness and K&N ink receptivity of paper coated with mixed coating color of clay and GCC-95 were improved but paper gloss and print gloss were decreased.

접착제 첨가량이 도공액과 도공지 물성에 미치는 영향

김경동,박종열,김철환 경상대학교 농업생명과학연구원 2002 농업생명과학연구 Vol.36 No.1

본 연구는 도공액 설계에 있어서 접착제가 도공액 및 도공지 물성에 미치는 영향과 3종류의 안료를 사용한 도공액에서 클레이와 중질 탄산칼슘의 혼합비가 도공액 및 도공지 물성에 미치는 영향을 분석하였으며 그 결과는 다음과 같다. 안료입자의 비표면적이 클수록 동일한 도공층 강도를 유지하기 위해서는 접착제 소요량이 많았으며 중질 탄산칼슘보다는 클레이가 접착제를 더 많이 필요로 하였다.접착제의 혼합비율이 증가함에 따라 No.1 Clay의 고전단 점도는 증가한 반면 No.2 Clay는 감소하였고 GCC-95는 증가하는 경향이나 큰 변화를 보이지 않았다. 백지광택과 K&N ink 흡수성은 감소하는 경향이나 백색도의 변화는 보이지 않았다. Clay와 GCC-95가 혼합된 도공지의 물성은 중질 탄산칼슘 비율이 증가함에 따라 투기도, 백색도와 K&N ink 흡수성은 증가한 반면 백지광택과 인쇄광택은 감소하였다. In this study, the effect of latex on coating colors and coated paper properties was investigated. Also the optimum dosage of latex for commercial coated paper was carried out using three kinds of pigment. The effect of the ratio of clay and ground calcium carbonate on coating colors and coated paper properties was studied with triangular coordinates. From the result, it can be said ; More latex was needed to get the good coating strength in case of higher specific surface area. And the clay required more latex than the ground calcium carbonate. The high shear viscosity was increased for No.1 clay when the amount of latex was increased, but it was decreased for No.2 clay. However, it was almost the same as ground calcium cafbonate. Paper gloss and K&N ink receptivity were decreased with the increase of latex content, but brightness showed no difference. Compared to control coating color(No.1 clay : No.2 clay : GCC-95 = 15 : 25 : 60), latex was needed 14.0, 13.0, and 10.5 pph for No.1 clay, No.2 clay and GCC-95, respectively, to keep the same pick strength with control. In the case of using clay and ground calcium carbonate, the porosity, brightness and K&L ink receptivity were increased, but paper gloss and print gloss were decreased with the increase of ground calcium carbonate. It can be said that the pigment ratios of 0-40% for No.1 clay, 10-50% for No2 clay and 50-60% for GCC-95 are needed to get properties of 85-86% for brightness, 73-76% for paper gloss and 90-91% print gloss. Estimated brightness, paper gloss and print gloss were similar to predicted values with triangular coordinates for control coating color(No.1 clay : No.2 clay : GCC-95 = 15 : 25 : 60).