꽃바구니에 사용된 절화, 절지 및 절엽의 종류와 특성

박윤점,허북구,윤재길,강호종 한국화훼연구회 2002 화훼연구 Vol.10 No.2

꽃바구니 127개를 대상으로 사용된 절화, 절지 및 절엽의 종류와 특성을 조사하였다. 꽃바구니는 절화 1종만으로 꽂은 것이 36.0%, 2종류로 꽂은 것이 37.7%로 2종류 이하가 73%나 차지하였다. 절화 1종만으로 꽂은 꽃바구니 중 43.5%는 소국을, 27.5%는 장미, 17.8%는 백합을 이용하였다. 절화 2-3종이 조합을 이룬 꽃바구니에서는 소국, 장미, 안개꽃, 백합의 사용이 많았다. 꽃바구니에 사용된 절화 형태는 매스플라워 37.2%, 필러플라워 30.3%, 폼플라워 22.4%, 라인플라워 10.1%였다. 꽃바구니에 사용된 절화의 색 조합은 단색만 사용된 꽃바구니가 39.9%, 2색이 사용된 것이 43.1%였으며, 3색 이상이 사용된 꽃바구니는 17.0%였다. 꽃바구니에 사용된 절화의 길이는 폼플라워와 매스플라워는 21-50cm, 라인플라워는 31-60cm, 필러플라워는 10-40cm가 많았다. 꽃바구니에 사용된 절지 및 절엽중에 1종류만 사용된 것이 45.9%, 2종이 사용된 것이 37.5%, 3종이상이 사용된 것이 12.5%였으며, 아스파라거스, 편백, 사스레피나무가 많이 사용되었다. 꽃바구니에 사용된 절지 및 절엽의 형태는 필러폴리지가 56.3%, 매스폴리지가 25.1%, 폼폴리지가 15.0% 순이였다. Kinds and characteristics of cut flower, cut branch and cut foliage used for flower baskets were investigated. Flower baskets using olny 1 cut flower is 36% and 2 kinds of cut 37%. Among flower baskets using 1 species of cut flower, 43.5% used spray chrysanthemu, rose, Gypsophila and lily. Among gorms of cut flowers for flower basket, mass flower is 37.2%, filler flower 30.3%, form flower 22.4%. Among colors of cut flowers for flower basket, only 1 color is 39.9%, 2 colors 43.1% and above 3 colors 17%. Length of cut flower used for flower basket is 21-50cm in form and mass flower, 31-60cm in line flower, 10-40cm in filler flower. As for cut branch and cut foliage used for flower basket, only mainly Asparagus, Chamaecyparis and Eurya. As for cut branch and cut foliage used for flower basket, filler foliage is 56.3%, mass foliage 25.1% and form foliage 15%.

온실의 구조적 장애물이 무선통신 성능에 끼치는 특성 규명

권구범, 이재현, 연윤호 忠北大學校 農業科學硏究所 2017 農業科學硏究 Vol.33 No.1

The use of environmental measurement sensors and wireless communication for automatic control in agriculture was increased. The poor reliability of wireless communication were a disadvantage when the system controled in a couple of greenhouses or installed complex structures in a greenhouse. In this study, the effect of structural obstacle in the greenhouse was analyzed on wireless communication. The measurement of wireless communication was calculated by the types of material on obstacle. Because environmental factors such as crops and soil may affect wireless communication in the greenhouse, measurements were conducted in a thermo- hygrostat with constant temperature and humidity. The materials of the obstacle such as vinyl, plywood, acrylic plate, paper box, and heat insulation were performed with different layers (from 1 to 7 layers). The data communication rates between transmission and receiver unit were 100% for ZigBee system in case of 3 vinyls, 2 acrylics and 2 paper boxes. When the number of materials (i.e. vinyl, arcylic, and paper box) was increased, the data communication rates were reduced. However, the data communication rates were partly reduced at more than one of materials in case of plywood and insulation. As the number of layers were increased, the number of loss data were increased and the transmission rate were decreased.

치과용 심미 수복 재료들의 색상 연구를 통한 새로운 치과용 색체계의 제안

오윤정,박수정,김동준,조현구,황윤찬,오원만,황인남 대한치과보존학회 2007 Restorative Dentistry & Endodontics Vol.32 No.1

본 연구는 새로운 치과용 색체계 개발을 목적으로 현재 치과에서 사용되고 있는 Vita shade를 사용하는 9 제조사의 12종의 광중합형 복합레진과 1종의 치과용 도재의 색상을 diffuse/8° 수광 방식을 사용하는 분광색체계 (MiniScan XE plus, Model 4000S, Hunter Lab, USA)를 이용해 D65 표준광과 10도 관찰자 시야 하에서 CIE L^(*)a^(*)b^(*) 값을 측정하고 색상 범위를 분석하였다. 분석한 정보를 color sorting system을 응용한 CNU Cons Dental Color Chart의 색상 표현 방식인 T###에 치과용 수복 재료들의 범위를 적용하여 다음의 결과를 얻었다. 측정된 L^(*)a^(*)b^(*)값의 분포를 분석해 보면 L^(*)값은 80.40과 52.70 사이에, a^(*)값은 10.60과-3.60 사이에, 그리고 b^(*)값은 28.40과 2.21 사이에 분포한다. L^(*)값의 평균값은 67.40, 중앙값은 67.30이며, a^(*)값은 2.89와 2.91, b^(*)값은 14.30 과 13.90 이다. 이러한 분석을 토대로 CNU Cons Dental Color Chart의 T###의 첫 번째 숫자에 해당하는 L^(*)값의 각 숫자간의 차이는 2.0으로, 그리고 2번째 숫자인 a^(*)값의 각 숫자간의 차이는 1, 그리고 세 번째 숫자인 b^(*)값의 각 숫자간의 차이는 2로 정하였다. T555에 해당하는 L^(*)값의 범위는 66.0이상, 68.0미만으로, a^(*)값의 범위는 3이상 4미만으로, b^(*)값의 범위는 14이상 16미만으로 결정하였다. The purpose of this study is to develope new dental color-space system. Twelve kinds of dental composites and one kind of dental porcelain were used in this study. Disk samples (15 ㎜ in diameter, 4 ㎜ in thickness) of used materials were made and sample’s CIE L^(*)a^(*)b^(*) value was measured by Spectrocolorimeter (MiniScan XE plus, Model 4000S, diffuse/8° viewing mode, 14.3 ㎜ Port diameters, Hunter Lab. USA). The range of measured color distribution was analyzed. All the data were applied in the form of T### which is expression unit in CNU Cons Dental Color Chart. The value of L^(*) lies between 80.40 and 52.70. The value of a^(*) are between 10.60 and 3.60 and b^(*) are between 28.40 and 2.21. The average value of L^(*) is 67.40, and median value is 67.30. The value of a^(*) are 2.89 and 2.91 respectively. And for the b^(*), 14.30 and 13.90 were obtained. The data were converted to T### that is the unit count system in CNU-Cons Dental Color Chart. The value of L^(*) is converted in the first digit of the numbering system. Each unit is 2.0 measured values. The second digit is the value of a^(*) and is converted new number by 1.0 measured value. For the third digit b^(*) is replaced and it is 2.0 measured unit apart. T555 was set to the value of L^(*) ranging from 66.0 to 68.0, value of a^(*) ranging from 3 to 4 and b^(*) value ranging from 14 to 16.

海外直接投資에 따른 「컨트리 리스크」評價에 관한 硏究

金圭昌,李洪閏 대구효성가톨릭대학교 1996 연구논문집 Vol.52 No.1

Since 1981, Korean enterprise's foreign direct investments have rapidly increased over 100% as compared with previous year. These foreign direct investments were mainly invested in overseas marketing for export promotion or extraction industries for raw material acquisition. The purpose of this study is to guide the Korean enterprise's to recognize country risk which they are confronted in host countries. Analysis of the host country environment before investment will give good opportunity and good profit to investing companies, And country risk assessment will minimize or avoid losses where they are involved or invested. In this study, I tried to analyze factors which compose the environment and economic or non-economic constraints to enterprises in host countries. With these factors, I studied techniques which were developed by enterprises and international banks to assess country risk. Country risk assessment enables to plan counter-strategies against level of country risk to executives or middle managers of enterprises. Therefore, I presented the counter-strategies which enterprises developed for high-risked host countries and how they adopted them in investment decision making. But I only presented the conceptional framework of country risk and introduced foreign enterprises techniques in this paper and could not contribute to Korean enterprises developing unique techniques. I suggested that Korean enterprises, which have no analysis staff and no counter-strategies available eventhough they are already involved and invested in developing countries.

마이크로파에 의한 WC의 합성 및 특성에 관한 연구

강성구,정윤중 明知大學校 産業技術硏究所 2005 産業技術硏究所論文集 Vol.24 No.-

Tungsten carbide(WC) powders were synthesized by self-propagating high temperature synthesis(SHS) chemical furnace that microwave heating system. Attempt to find the optimal condition for synthesis of tungsten carbide(WC), the effects of molar ratio between carbon and tungsten, compaction pressure, pellet thickness and heating time of microwave on synthesis were investigated. Powder was synthesized in Ar atmosphere. Chemical fuel was Ti-C mixed powder. Compositional and structural characterization of these powders was carried out by scanning electron microscope(SEM) and x-ray diffraction(XRD). Powder characterization was carried out by the measurement of particle size distribution with laser-particle size analyzer. Tungsten carbide(WC) obtained by microwave depend very much on the mole ratio between carbon and tungsten and heating time of microwave given in a product, i.e. Optimum molar ratio of synthesized powder was tungsten : carbide = 1 : 1.5, pellet thickness 10㎜, compaction pressure l500Psi and microwave heating time was 60sec after propagation to best condition powder. By optimizing the synthesis conditions, it is possible to fabricate tungsten carbide(WC) powders which have little secondary phases.

꽃집 및 꽃 전문 온라인 쇼핑몰의 품목별 매출 실태조사

허북구,박윤점,윤재길,박상현 한국화훼연구회 2002 화훼연구 Vol.10 No.2

광역시 소재 꽃집 10곳과 서울 소재 꽃전문 온라인 쇼핑몰 3곳의 매출실태를 조사하였다. 꽃집의 매출액은 절화상품(65.0%), 관엽식물(19.3%), 난(14.8%), 기타(0.9%)순으로 많았으며, 품목별로는 경조화환(32.5%), 꽃바구니(23.4%), 관엽식물(19.3%), 난(14.8) 순으로 많았다. 온라인 쇼핑몰의 매출액은 절화상품(87.6%), 난(5.8%), 관엽식물(3.4%), 기타(3.2%)순이었으며, 품목별로는 꽃바구니(37.0%), 박스플라워(23.5%), 꽃다발(20.1%), 난(5.8%) 순으로 많았다. 판매건수는 꽃집의 경우 꽃바구니(28.1%), 꽃다발(20.8%), 관엽식물(15.0%)의 비율이 높았으며, 꽃 전문 온라인쇼핑몰은 꽃바구니(34.44%), 박스플라워(27.2%), 꽃다발(23.2%)의 비율이 높았다. 판매단가는 품목에 관계없이 꽃 전문 온라인 쇼핑몰이 꽃집 보다 비싸게 조사되었다. 꽃집에서 꽃 판매 형태는 가정용 절화는 100% 꽃다발은 77%가 직접 방문에 의해 판매되었고, 꽃바구니, 꽃다발, 박스플라워는 80%이상이 전화주문에 의해 구매된 것으로 나타났다. This survey was conducted to investigate the actual condition of flower sale in shopping mall for flower and flower shop, which is located in some metropoltan cities. In the case of flower shop. rate of selling amount is 65% for cut flower, 19.3% for foliage plant, 14.8% for orchid and 0.9% for others. Among the cut flowers, wreath for celebration or condolence account for 32.5%, flower basket 23.4%. foliage plant 19.3% and orchid 14.8%. In the case of online shopping mall, rate of selling amount is 87.6% for cut flower, 5.8% for orchid and 3.4% foliage plant. Number of sale, in flower shop, was very high orderly at flower basket(28.1%), bouquet(20.8%) and foliage plant(15%). However, shopping mall showed that number of sale was high at flower basket(34.4%), box flower(27.2%) orderly. Sale price was higher in online shopping mall than in flower shop independent on items. Form of flower sale, in flower shop, was appeared that 100% for home and 77% for bouquet were soled by visiting, above 80% of flower basket, bouquet and box flower were soled by telephone.

화훼꽃말의 표준화를 위한 화훼꽃말의 종류와 유래에 관한 연구

박윤점,허북구,서춘순,송채은,정주연 韓國植物ㆍ人間ㆍ環境學會 1999 인간식물환경학회지 Vol.2 No.1

This survey was carried out to investigate kinds and origins of flower languages of common flowering plants and standardize them. A flowering plant has about 5 kinds of flower languages. Differnt literatures have different flower languages for the same flowering plant. So differnt flower languages need to have standard flower languages. Flower languages originate from shape(8.0%) > color(7.5%) > characteristics(4.4%) > mythology and legend(4.9%) > scientific name(2.3%) > flowering time(1.8%) > perfume(0.9%) > and others(1.7%). The origin of 68.5% of flower languages was found to be obscure.

레진모형 근관에서 Ni-Ti 파일로 근관성형 후 거타퍼챠콘의 근관내 삽입깊이에 대한 연구

조현구,황윤찬,황인남,오원만 大韓齒科保存學會 2007 Restorative Dentistry & Endodontics Vol.32 No.6

본 연구는 레진모형 만곡근관에서 여러 가지 엔진구동형 Ni-Ti파일로 근관성형 후,같은 경사도를 가진 수종의 거타퍼챠콘을 적용시 근관 내 삽입 깊이에 대해 비교, 분석해보고자 시행하였다. 레진 모형근관으로 J자의 근관형태가 재현된 ENDO-TRAINING BLOCK 50개를 사용하여 각각 10개씩 1) ProFile .04 taper #25, 2) ProFile .06 taper #25, 3) ProTaper F2, 4) HEROShaper .04 taper #25, 5) HEROShaper .06 taper #25 파일로 최종 근관성형 하였다. 거타퍼챠콘은 META (META Biomed, Korea), Sure-Endo (SUREDENT, Korea) 그리고 DiaDent (DiaDent Group International Inc., Canada)의 .04 및 .06 경사도의 콘을 사용하였으며 선택된 거타퍼챠콘의 직경 및 경사도를 측정하였다. ProFile과 HEROShaper로 성형한 레진블록에는 사용된 Ni-Ti 파일의 경사도에 맞는 제조회사별 .04 및 .06 경사도의 거타퍼챠콘을 10개씩 근관에 적용하였으며, ProTaper로 성형한 레진블록에는 경사도와 무관하게 제조회사별 .04 및 .06 경사도의 거타퍼챠콘을 10개씩 적용하였다. 거타퍼챠콘을 근관 내 적용한 상태에서 스캐너를 이용하여 이미지를 얻은 후 이미지 분석 프로그램을 사용하여 근첨에서 거타퍼챠콘 첨부까지의 거리를 측정하였고 다음의 결과를 얻었다. HEROShaer를 이용하여 근관성형 한 경우 ProFile 및 ProTaper보다 거타퍼챠콘의 근관 내 적합성이 우수하게 나타났으며, 근관성형 시 .04 taper HEROShaper로 근관성형 후에는 META 거타퍼챠콘 및 Sure-Endo 거타퍼챠콘을, .06 taper HEROShaper로 근관성형 후에는 DiaDent 거타퍼챠콘을 마스터콘으로 사용시 근관 내 적합성이 우수하게 나타났다. 따라서 근관성형 후 사용한 Ni-Ti 파일과 같은 경사도를 가진 거타퍼챠콘이 근관에 알맞게 위치되는 것은 아니며 근관충전 시 적절한 마스터콘의 선택이 필요함을 시사한다. The purpose of this study was to evaluate the insertion depth of several brands of master gutta percha cones after shaping by various Ni-Ti rotary files in simulated canals. Fifty resin simulated J-shape canals were instrumented with ProFile, ProTaper and HEROShaper. Simulated canals were prepared with ProFile .04 taper #25 (n = 10), .06 taper #25 (n = 10), ProTaper F2 (n = 10), HEROShaper .04 taper #25 (n = 10) and .06 taper #25 (n = 10). Size #25 gutta percha cones with a .04 & .06 taper from three different brands were used: DiaDent; META; Sure-endo. The gutta percha cones were selected and inserted into the prepared simulated canals. The distance from the apex of the prepared canal to the gutta percha cone tip was measured by image analysis program. Within limited data of this study, the results were as follows 1. When the simulated root canals were prepared with HEROShaper, gutta-percha cones were closely adapted to the root canal. 2. All brands of gutta percha cones fail to go to the prepared length in canal which was instrumented with ProFile, the cones extend beyond the prepared length in canal which was prepared with ProTaper. 3. In canal which was instrumented with HEROShaper .04 taper #25, Sure-endo .04 taper master gutta percha cone was well fitted (p < 0.05). 4. In canal which was instrumented with HEROShaper .06 taper #25, META .06 taper master gutta percha cone was well fitted (p ( 0.05). As a result, we concluded that the insertion depth of all brands of master gutta percha cone do not match the rotary instrument, even though it was prepared by crown-down technique, as recommended by the manufacturer. Therefore, the master cone should be carefully selected to match the depth of the prepared canal for adequate obturation.

개불과 넙치의 혼합 사육시 성장과 사육환경의 변화

김용구,박일웅,안윤근,배애란,최상덕 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-

This present study was conducted to determine the effects of sea water quality and sediment quality on growth and body composition in poly culture system, Paralichthys olivaceus and Urechis unicinctus. The seawater temperature of the experimental groups was ranges of 17.1~23.8℃, the lowest in 0 day and the highest in 70 day. The concentration of COD was 1.2~1.6㎎/ℓ, DIN 6.19~28.89㎎/ℓ in the D group. Mean IL concentration was 5.42~5.07% and it was maximum in 0 day and relatively minimum 70day. The concentration of AVS was 0.36~0.22㎎/g-dry, COD 4.36~4.08㎎/g-dry in the D group. Growth and feed intake of fish were affected by diets and feeding frequencies(P<0.05). There were differences at all experimental groups especially C group and control group but A, B group and C, D group were not difference. The lowest increased body weight was observed 4.7g in the D experimental group and the highest experimental group was observed 8.6g in the C group.

허브식물의 속명 어원에 관한 조사분석

허북구,박윤점,이일병,윤재길 한국화훼연구회 2002 화훼연구 Vol.10 No.2

원예치료용으로도 다수 이용되고 있는 허브식물의 특성 파악과 정확한 구분, 교육 및 연구에 효율적으로 이용할 수 있는 기초자료 수립측면에서 허브식물 97종의 속명 어원을 조사하였다. 허브식물의 속명 유래를 조사한 결과 성분 및 용도(27.8%), 언어명(23.7%), 형태(13.4%), 신화(7.2%), 향기(6.2%), 생육습성(6.2%), 색깔(5.2%), 인명(4.1%), 기타(00%)에서 유래된 것 순이었다. 성분 및 용도에서 유래된 것은 주로 약리 작용에서 유래된 비율이 높았다. 언어명에서 유래된 것은 주로 고대 그리스 및 로마시대의 식물명이었다. 형태에서 유래된 것은 허브식물의 잎과 줄기, 꽃 및 뿌리가 속명의 유래원이었다. 신화에서 유래된 것은 주로 기쁨이나 약효와 관련된 것이었다. 향기에서 유래된 것은 식물의 전체 혹은 종자에서 냄새가 나는 것에서 유래되었다. 생육습성은 자생지역이나 개화습성, 덩굴성 등의 특성이 반영되어 있었다. 기타 식물의 꽃, 잎, 뿌리의 색깔과 왕의 이름, 맛 지명, 벌, 꽃이 아름다운데서 유래된 것이 있었다. The derivation of genera names in 97 herb plants were investigated to obtain the basis information useful for understanding the characteristics of herbs, classifying correctly, teaching and researching about them. Most genera names were derived from constituent and utilization(27.8%), and followed by language(23.7%), morphological characters(13.4%), myth(7.2%), odor(6.2%), color(5.2%) and human's name(4.1%) orderly. Genera names derived from constituent and utilization were originated mostly from medicinal effect, and those from language name were mostly originated from the plant names of Greek and Rome. Genera names derived from myth were mostly originated from delight and medicinal effect, and those from oder were originated from order of whole plant or seed. Genera names derived from growth habit indicate the character of flowering habit, native location and vine. The others of genera names were originated from the color of flower, leaf and root, king's name, taste, place name and flower beauty.