• Journal of Bio-Environment Control
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• v.11 no.4
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• pp.168-174
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• 2002

A new circulating hydroponic system was invented for oriental melons grown in the greenhouse. For developing nutrient solution management techniques, we examined the changes of nutrient contents of circulating solution in three different types of new hydroponic systems. The yield and fruit quality of oriental melons in Hydroponics were better than those in soil culture. The substrate culture was appropriate fer hydroponics of oriental melons, and NFT was turned to be the opposite due to the physiological disorder during hot seasons. Yamazaki's melon solution with EC 2.0dS.m$^{[-10]}$ was the most appropriate for oriental melons. The new circulating hydroponic system seemed to be appropriate for oriental melons because of the stable EC, pH and the macro- and micro-element contents. NO$_3$-N, Ca and Mg contents in the circulating solution kept a good balance in all types of hydroponics. However, p content, compared to other types, decreased by the degree of 1 me.L$^{[-10]}$ in perlite medium. K content showed irregular status in perlite but showed the stable status in cocopeat. Generally, microelements, except Mo, showed stable absorption in the substrate culture. However, in NET, most of the elements showed irregular absorption except B and Mn. Microelement absorption, especially Cu, Zn and Mo, decreased during hot seasons.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1998.10a
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• pp.151-155
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• 1998

본 실험은 무등산수박과 달고나수박으로 98년 4월 2일에 파종하여 4월 24일 토양과 펄라이트＋코코피트 혼합배지에 각각 정식하였다. 무등산수박과 달고나수박의 재배방법에 따른 생장결과를 보면 엽수는 달고나수박이 많은 반면 총엽면적은 무등산수박이 높게 나타났다. 생체중 및 건물중에 있어서도 달고나수박보다 무등산수박이 더 높게 나타났으며 토양재배보다 양액재배 수박이 더 월등한 생장차이를 나타내었다. 당도는 달고나 수박이 무등산수박보다 훨씬 더 높은 반면 과실무게는 무등산수박이 더 높게 나타났다. 엽병내 질소흡수량은 생육초기에는 26,000-30,000prm 정도이었고 수분후 33일에는 38,000-44,000ppm 정도로 상승하였다. 인산은 생육초기 4,000-8,800ppm 정도에서 수확기에 이르면 480-l,600ppm 정도로 감소하였다. 칼륨은 생육초기에 10,000-26,000ppm 정도였으나 수분기부터는 8,000-14,000ppm 범위로 흡수되었다. 칼슘의 흡수는 생육초기에는 앙액재배 수박이 52,000-5,700ppm 범위로 토양재배 수박의 2,700-3,900ppm 범위보다 약간 많은 것으로 나타났지만 생육이 진전됨에 따라 토양재배 수박의 흡수량이 양액재배 수박의 흡수량보다 많아지는 경향이었다. 마그네슘의 흡수는 생육초기에 토경에서 훨씬 더 용이하게 흡수되는 경향이었으나 수분기부터는 200-700ppm 범위로 일정하였다.

• The Inventors News
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• no.45
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• pp.1-16
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• 2006

'2006 여성발명 창의교실' 첫 수료식 개최/2006 대한민국 여성발명품 박람회/제12회 여성발명 우수사례 발표회/신세대 인터넷 용어, 상표 출원 증가/독창성가진 화투, 특허품으로 인정/대학 강의실에도 특허 열풍 분다/차세대 분자전자 메모리 특허 증가/교통카드 특허 이용료 협상 골머리/국제지식재산연수원, WIPO 공식 연수기관 지정/PCT, 국내단계 진입기간 31개월까지로 연장/직무발명 보상에 대한 길 더 넓어져/특허.실용신안, 권리 강화 되다/'특허행정체험단' 통해 고객 감동 실현/신규 발명교실 설치 계획 안내/사랑 확인해 주는 '연인의 잔' 발명/'무공해 플라스틱'으로 환경 사랑 나선다/중국, R&D 기지로 급부상하다/특허출원 실적, 대학별 빈부 격차 심해져/삼성,SDI,OLED 특허 출원 세계 최다/한국여성발명협회, 홈페이지 전면 개편/특허청, 국방과학연구소와 업무협력협정 체결/브랜드 경영 열풍, 지자체에도 분다/'DMB 기술표준과 전략적 특허분석' 발간/지렁이로 화장품, 비누 발명/건강 상식/시중 은행, 월드컵 미끼상품 못판다/역사 속의 발명품/하루 10문 발명교실/특허Q&A/조정숙 코코허브 대표/수원 매현중학교 발명교실/파마머리 발명, 올해로 1백주년/아이디어 착상 및 발명 기법/창의성은 우리의 밥줄이다/야마모토의 추잉껌/PSP진동기술 특허소송 소니패배/내셔널반도체, 특허 장난꾼 잡는다/특허청, '제7회 반도체 설계 공모전' 개최/KAIST 학생들, 특허청에서 '연구노트' 작성법 전수/특허법원, 전국법원 중 처음으로 구술변론 도입/한국여성발명협회 회원사 발명품 가이드/'2006 전국 발명표어 공모대회' 공고

• The monthly packaging world
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• s.285
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• pp.82-94
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• 2017

2016년 우수디자인(GD)상품선정 시상식이 지난해 12월 14일코리아디자인센터 컨벤션홀에서 열렸다. '우수디자인(GD)상품선정제도'는 1985년부터 산업디자인진흥법 제6조에 의거하여 상품의 경제성, 사용성, 환경친화성, 심미성 등을 종합적으로 심사하여 디자인이 우수한 상품과 서비스에 GD마크를 부여하는 제도로, 산업통상자원부가 주최하고 한국디자인진흥원이 주관하고 있다. GD마크는 우수한 디자인 상품 개발을 장려하여 국가경쟁력을 확보하고 국민 삶의 질을 향상시키는 것을 목표로 선정하고 있다. 또한 창의 디자인강국 구현을 위해 세계적 인증가치를 구축하고, 유니버설디자인, 서비스디자인, 전통시장 산업단지 디자인을 고도화(우수디자인 선정 장려 등)함으로써 사회적 문제해결과 지속가능한 창조경제 실현에 그 의의가 있다. 올해 선정대상품목은 제품, 커뮤니케이션, 포장, 공간환경, 서비스 등의 부문에서 39개 항목으로 출품됐다. 포장 부문은 소비자제품, 식음료, 뷰티/헬스, 의료, 산업/B2B, 기타 포장 등 6개 항목으로 구성됐다. 올해 포장 부문에서는 플러긴스의 STONE JEJU CANDLE이 국무총리상을, 엘지전자(주)의 LG Sound 360 패키지가 산업통상자원부장관상을, 유씨엘(주)의 아꼬제, (주)퍼스트마켓의 코코스타 핸드모이스쳐 팩, (주)웰코스의 후르디아 크림이 조달청장상을, 일동홀딩스(주)의 그녀는 프로다, 삼성전자(주)의 삼성 모바일 액세서리 패키지 시리즈, 피치앤드의 피치앤드는 KIDP원장상을, (주)유니베라의 남양알로에 맥스피는 중소기업청장상 등을 수상했다. 다음에 우수디자인으로 선정된 포장부문 제품들을 살펴보도록 한다.

• Korean Journal of Soil Science and Fertilizer
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• v.40 no.3
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• pp.189-195
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• 2007

Using fractal dimensionality theory proposed by Riew and Sposito (1991), we attempted to analyze quantitatively the characteristics of porous distribution for built-in soils in the mini-lysimeter and artificial seed-bed media. The 2" stainless core soil samples were taken from lysimeter soils. Artificial seed-bed media were compacted in the acrylic core filled with raw materials consisted of cocopeat, zeolite and perlite. N (Constant number of partitioned group size smaller media volumes) and r (Self-similarity ratio) parameters consisting of fractal dimension D=log(N)/log(1/r) were obtained by Excel Programme using the Riew and Sposito's fractal model. The pore distribution of tested media was screened in pore size and its occurring frequency. The results reveal that the distribution range of pores is wider in the lysimeter soils than in the seed-bed media, while average size of pores in the media is smaller in lysimeter core soils than in seed-bed media.

• Journal of the Korea Organic Resources Recycling Association
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• v.23 no.2
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• pp.61-66
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• 2015

In this study, manufacture of kitchen garden soil and its application on the growth of Lettuce has been performed. The optimal ratio of various raw materials for pH, total nitrogen, phosphate, cations, and salt content was found to be 49 : 35 : 10 : 5 : 1(w/w) in peatmoss, livestock manure, cocopeat, zeolite, and microbial fertilizer, respectively. In the growth experiment using Lettuce, the manufactured soil obtained 21% & 20% increase in leaf length and width, 17% increase in chlorophyll, and 22% in biomass, compared to the control.

• Journal of Bio-Environment Control
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• v.16 no.1
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• pp.27-31
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• 2007

The experiment has investigated the effects of blending rate of waste rockwool in nursery media on growth of Marygold 'Yellow boy' plug seedlings. A commercial plug medium containing 10% zeolite, 10% vermiculite, 5% perlite, 10% peatmoss and 65% cocopeat was used as the control, and the other media compounded with 10% of zeolite, vermiculite, perlite and peatmoss and 10, 30, and 50% of waste rock-wool. There was not significant difference in germination rate ot Marygold between treatments. Plant height, number of leaves, stem diameter and leaf area were higher in commercial plug medium and compound nursery media containing 50% of waste rockwool than 30 or 10% of waste rockwool. Fresh weight and dry weight of shoot and root increased in the treatment of commercial plug medium and the medium of 50% waste rockwool than 10 and 30% of waste rockwool. These results suggested the possibility of utilization of waste rockwool for medium components of plug seedlings.

• The Korean Journal of Mycology
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• v.44 no.3
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• pp.127-131
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• 2016

Unusual mushrooms were observed in strawberry and sweet pepper greenhouses in the Hwasun area of Korea in September 2015. The mushrooms usually grew on beds in the greenhouses, frequently along with vegetables. The identity of the mushrooms in the greenhouses and effects of the mushrooms on the growth and quality of vegetables were investigated. Mushroom specimens collected were identified based on their morphological and molecular characteristics. The mushroom specimens collected from the strawberry greenhouse were identified as Leucocoprinus birnbaumii and L. ianthinus, and those from the sweet pepper greenhouse as Gymnopilus lepidotus. These were the first observations of L. ianthinus and G. lepidotus in Korea. The results revealed that the mushrooms originated from coco peat media used for the beds in the greenhouses. The mushrooms did not affect the growth and quality of the two vegetables.

• Journal of Bio-Environment Control
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• v.22 no.1
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• pp.1-6
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• 2013

This study was conducted to examine the effects of coir, peatmoss, and red clay (20%) + peatmoss (80%) media on quality and drainage solution in hydroponics of Solanum lycopersicum 'Mascara'. The tomato seedlings were planted in media on 29 April, and supplied with Yamazaki's tomato solution of EC $2.0dS{\cdot}m^{-1}$ and pH 6.5. Tomato fruits were harvested from 13 June to 24 August. Drainage amount decresed when solar radiation and air temperature were high. However, drainage amount were not different among coir, peatmoss, and red clay + peatmoss media. The EC of drainage in red clay + peatmoss medium was higher than that in other media during the cultivation period. Also, soild state and available moisture content was more in red clay + peatmoss mediun than in coir or peatmoss media. The soluble solids of tomato fruits increased by 10~17% at $5.5^{\circ}Brix$ in red clay+peatmoss medium compared with $5.0{\sim}4.7^{\circ}Brix$ in coir or peatmoss media. Also, the acidity of fruits was the highest to 0.66% in red clay + peatmoss medium than the others. The total yield of fruits in red clay + peatmoss medium increased significantly by 9.1% at 8,428 kg than at 7,725 kg in peatmoss medium, and ratio of marketable yield was higher than the other media. Therefore, red clay (20%) + peat moss (80%) medium is recommend for growth and quality of fruits in hydroponics of Solanum lycopersicum 'Mascara'.

• Horticultural Science & Technology
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• v.31 no.2
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• pp.173-178
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• 2013

Experiments were conducted to investigate the optimum concentration of nutrient solution for strawberry 'Maehyang' bred domestically for exportation in hydroponics. Nutrient solutions for strawberry, which was made by Yamazaki, were supplied electrical conductivity (EC) 0.6, 0.8, 1.2, and $1.8dS{\cdot}m^{-1}$ after planting on cocopeat medium during the experiment period. Growth of shoot of strawberries did not show any statistical differences among treatments. Fruit length showed the longest in EC 0.8 and $1.2dS{\cdot}m^{-1}$, followed by 0.6 and $1.8dS{\cdot}m^{-1}$ in the first and third cluster. It showed the shortest in EC $1.8dS{\cdot}m^{-1}$ in the second cluster but there were no significant differences among treatments in the fourth cluster. Fruit diameter did not show significant differences among treatments in the first and second cluster but was the longest in the lowest concentration EC $0.6dS{\cdot}m^{-1}$ in the third cluster. The shortest was in EC $1.8dS{\cdot}m^{-1}$ in the fourth cluster. The heaviest mean fruit weight appeared in EC 0.8 and $1.2dS{\cdot}m^{-1}$, and the lightest was in EC $1.8dS{\cdot}m^{-1}$ in the first cluster and also lightest in EC $1.8dS{\cdot}m^{-1}$ but no significant differences was found among other treatments in the second & third cluster. Also the fruit weight was significantly light in plants grown in EC $1.8dS{\cdot}m^{-1}$ than $0.6dS{\cdot}m^{-1}$ in the fourth cluster. Soluble solids content of fruit was the highest in EC $0.6dS{\cdot}m^{-1}$ in all cluster. As a result, we came to the conclusion that the optimum EC for strawberry 'Maehyang' was EC 0.8 - $1.2dS{\cdot}m^{-1}$ during low temperature season. This result will be utilized as an indicator for strawberry hydroponics.