• The Inventors News
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• no.48
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• pp.1-16
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• 2006

축사/발명 유비쿼터스 선도하는 언론 지향/'발명하는 사람들' 창간 4주년 맞다/'발명하는 사람들' 창간 4주년을 축하합니다/반도체 공정분야 특허 출원 급증/운동화에도 웰빙 바람/공기청정기 특허출원 꾸준한 증가/차세대 반도체 특허, 회로.응용 분야에 집중/맥주, 이제 병이 아닌 플라스틱 용기에/특허고객콜센터, 품질인증 획득/특허청,'찾아가는 특허검색서비스' 제공/직무발명보상 개정법 관련 세미나/'쟁점별 특허소송 가이드북'제작/특허청 연구회, 고객감동 경영의 밑거름/한국특허정보원,2006 한국서비스대상 공공부문 대상 수상/현대차, 특허침해 찾으면 로열티 10% 지급/나이키 짝퉁, 한해 3백60만 켤레 적발/특허청, 자동차부품연구원과 업무협약/휴대용 포토 프린터 특허 출원 증가/역사 속의 발명품/하루 10분 발명교실/특허Q&A/한국여성발명협회 13년 발자취/미니인터뷰/이공계 대학교수 대상 특허정보 세미나 개최/실용신안 등록출원, 우선심사 대상 확대/자료 수집을 소홀히 마라/특허청 간부진, 고객 현장 속으로/삼성, 중국 저명상표로/포스코, 특허시스템 가동/도미다의 원너 커트/월마트, 짝퉁 '펜디' 판매로 망신살/일본, '지적재산권 입국' 계획 마련/미국-유럽연합, 짝퉁 퇴치 나선다/특허청, 자체 브랜드 '특허로' 첫상표출원/인청 부평지식재산센터, 발명가 초청강연회 개최/'2006 피츠버그 국제전' 에서 국내 발명가 수상/세계 최고 4대 건강식품/특허법원, 책 제목 출판사 소유로/한국여성발명협회 회원사 발명품 가이드/'2006년 여대생 발명캠프'/

• The monthly packaging world
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• s.260
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• pp.45-55
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• 2014

최근 환경오염과 생태학적 환경문제가 사회적 중요한 관심사로 인식되고 있다. 포장디자인에 있어서도 재활용과 재사용에 대한 요구와 함께 스티로폼이나 플라스틱을 대체하는 친환경 포장용기와 생분해성 필름 등의 포장재의 개발과 생산이 점차 증가하고 있다. 이러한 사회적 배경에서 본 연구에서는 환경친화적 포장디자인의 개발을 위한 가이드라인 설정을 목적으로 하고 있다. 연구내용은 환경친화적 디자인의 개념과 에코 포장디자인 적용범주, 국내외 에코패키지의 동향 및 포장재 현황을 살펴보고, 각종 정책과 규정 및 관련지침 등의 이론적 자료들을 근거로 일반적으로 고려되고 있는 에코패키지의 기본 방향과 체크리스트를 분석하였으며 이에 따른 가이드 라인 및 수행 절차를 고찰하였다. 에코 패키지의 기본방향은 첫째, 포장디자인의 제작, 사용, 폐기에 이르는 전과정에서 환경측면을 고려해야 하며 둘째, 비용과 품질, 시장성, 디자인 등 다중요소를 고려해야 한다. 셋째, 디자인 부서와 제품설계부서, 생산부서, 환경팀 등 조직 내의 다른 시스템과 기능적으로 협력하여야 하며 넷째, 기업의 다른 여러 가지 환경 활동을 통해 잠재적인 소비자와 시장을 확대할 수 있다는 것이다. 가이드라인의 내용은 자원 절감과 물질 사용량 절감, 재활용성 확대, 에너지 효율 향상, 유해 물질 저감과 안전성 확보, 폐기 효율성을 중심으로 하고 있다. 환경 친화적 포장디자인의 실천을 통해 환경영향성을 개선하고 비용을 감소시키며 소비자의 이미지 개선에도 기여할 것으로 기대된다.

• Korean Journal of Food Science and Technology
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• v.22 no.6
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• pp.686-689
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• 1990

For the monitoring of kimchi fermentation states, pressure detecting sensor and monitoring device were designed and fabricated. The system was consisted of an air tight fermenting tube(31.5 ml), strain gauge type pressure sensor and signal processing device built with operational amplifier and A/D converter, and interfaced to personal computer. Chiness cabbage kimchi was fermented in the plastic container($150{\times}220{\times}160mm$) at $25^{\circ}C\;and\;30^{\circ}C$. The fermentation was monitored with fermenting tubes containing kimchi. The pressure based kimchi fermentation curve was constructed and showed a typical kimchi curing curve having 2 stepwise pressure increasing pattern.

• Journal of the Korea Organic Resources Recycling Association
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• v.11 no.4
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• pp.57-65
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• 2003

Livestock farming is one of several industries that have faced criticism because of its impact on the water quality, soil contamination and air pollution. The livestock feces can cause some environmental problems. The best way to treat the feces is to recycle the manure as an organic fertilizer after fermentation or composting. This study was carried out to investigate the characteristics of composting of manure in several composting conditions. The variations of physicochemical characteristics of each compost piles containing different level of air volume were analyzed throughout the composting period. In this study, pigs manure compost piles mixed with saw dust were composted in 110L of laboratory scale plastic vessels and $1.5m^3$ of small cubic wooden composting vessels for 60days. The compost piles were ventilated continuously with air pump throughout the composting duration. The air volume ventilated into the piles was regulated by chock valve attached to the inlet pipe. The ventilation level was adjusted by 20, 50, 100, 150 and $200L/m^3/mim$, respectively. The highest temperature of the compost increased to $72^{\circ}C$ during composting period. After 20days from beginning of fermentation, concentrations of $H_2S$, $CH_3SH$, DMS and DMDS generated from compost piles were 29, 16, 6 and 5ppb in blow in state compost pile, conversely, in blow out state compost pile, the parameters were 32, 24, 15 and 14ppb, respectively.

• Journal of radiological science and technology
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• v.40 no.1
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• pp.19-25
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• 2017

The aim of this study was to evaluate Magnetic Resonance Imaging safety by measuring the translational attraction, torque and susceptibility artifact for Bone-Anchored Hearing Aid (BAHA) implant at 1.5 T and 3.0 T MRI by standard criteria. In vitro assessment tools were made of acrylic-resin by American Society for Testing and Materials (ASTM) F2052-06 and F2119-07 standard. Translational attraction of BAHA implant was measured by the maximum deflection angle at 96 cm position, where the magnetically induced deflection was the greatest. The torque was assessed by the qualitative criteria of evaluating the alignment and rotation pattern, when the BAHA implant was positioned on a line with $45^{\circ}$ intervals inside the circular container in the center of the bore. The susceptibility artifact images were obtained using the hanged test tool, which was filled with $CuSO_4$ solution. And then the artifact size was measured using Susceptibility A rtifact Measurement (SA M) software. In results, the translational attraction was 0 mm at both 1.5 T and 3.0 T and the torque was 0(no torque) at 1.5 T, and +1(mild torque) at 3.0 T. The size of susceptibility artifacts was between 13.20 mm and 38.91 mm. Therefore, The BAHA implant was safe for the patient in clinical MR environment.

• Journal of Bio-Environment Control
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• v.30 no.3
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• pp.244-249
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• 2021

The hydroponic culture for growing 'Duke' blueberry was evaluated in a protective greenhouse provided with similar environmental conditions to the conventional blueberry cultivations. One year old 'Duke' blueberry bushes planted in 180 L containers filled with 130 L peat moss and 40 L pearlite (v/v) were selected for the experiment. A nutrient solution consisted with NO₃-N 4.6, NH₄-N 3.4, PO₄-P 3.3, K 3, Ca 4.6, and Mg 2.2 mmol^-1 was supplied to the plants, comparing non-hydroponic treatment (provided with only underground water). Hydroponic culture increased number of shoot per bush by 18% and total shoot length by 24% compared with non-hydroponic culture. Total dry weight of a bush increased in the hydroponic with vigorous root growth 1.4-fold more than the non-hydroponic. Higher concentrations of inorganic elements and organic compounds were found in the hydroponic, indicating active nutrient absorption of the bush. The hydroponic produced high yield similar to adult bush from 4 years old age, maintaining the yield until 8 years old age. The findings of this study indicated that hydroponic cultivation systems will be useful for growing blueberry crop.

• Journal of Bio-Environment Control
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• v.29 no.2
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• pp.130-140
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• 2020

This study was conducted in order to closely examine about optimum shading for superior seedling production a container seedling of Tetradium daniellii, which is being increased the demand for a seedling due to being used for alternative energy, ecological restoration and honey plant. The experiment of investigating the optimum shading on T. daniellii was carried out by using plastic container types (350 ml/cavity) for the forestry facility cultivation. The shading level was treated with full sunlight and with 35%, 55%, 75% of the full sunlight. As a result of having surveyed height and root collar diameter growth of a containerized seedling in T. daniellii, a case of the shading experiment showed a noticeably high value was indicated in the full sunlight. It was surveyed that the stronger shading level leads to the lower growth value. Root development was most active in full sunlight. Dry matter production, it was investigated to be the highest in full sunlight. It was surveyed to be the similar tendency to the outcome of height and root collar diameter growth. QI, which is index of showing the quality of a seedling, stood at 0.98 in full sunlight, thereby having been investigated to be the highest. As for the chlorophyll content in a seedling, the highest chlorophyll content was indicated in the 75% shading treatment with the relatively highest shading level. The photosynthetic rate and the water use efficiency were surveyed to be the highest in full sunlight with 8.48 μmolCO₂·m^-2s^-1, 1.40 μmolCO₂·mmolm^-1H₂O, respectively. As a result of surveying the whole experiment, optimum shading level for superior seedling production a container seedling of T. daniellii is determined in full sunlight (0%). It is expected that this will be used as a basic data for mass production.

• Food Science and Preservation
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• v.21 no.2
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• pp.239-245
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• 2014

This study was performed to provide fundamental information regarding the quality change of buckwheat soksungjang (BWS) during its storage. BWS was divided into three different containers (pot, plastic, and glass) and was stored at three different temperatures (5, 15, and $25^{\circ}C$), and the changes in pH, acidity, amino-type nitrogen, total bacterial count, and chromaticity were examined during the storage period. The pH (0 day, pH 4.37) and acidity (0 day, 2.93% acidity) of the samples, except at the 15 and $25^{\circ}C$ pots, did not show any significant change during storage, but 98 days after storage, the pH values of the 15 and $25^{\circ}C$ pots were pH 5.6 and 7.4, and their acidity values were 1.85 and 0.71%, respectively. At 98 days, the amino-type nitrogen of the $25^{\circ}C$ plastic sample had slightly increased to $0.75{\pm}0.01%$, and that of the $25^{\circ}C$ pot had drastically risen to $0.92{\pm}0.01%$. It was also shown that little change in the total bacterial count was found during the experiment period in every sample. The chromaticity results confirmed that the L (lightness), a (redness), and b (yellowness) values of the $25^{\circ}C$ pot sample showed relatively large changes during storage compared to the other samples. These results suggest that the desirable storage temperature of BWS is in the range of $5-15^{\circ}C$, and that a glass container is the most suitable container for BWS as it can reduce the quality alteration during storage.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.49 no.6
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• pp.487-490
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• 2004

Methods for culturing bean sprouts could be divided into two main groups of overspraying and underwatering according to water supplying. The study was done to measure the effect of water supplying method on growth of mungbean sprouts and temperatures inside their culture boxes. The morphological characters, fresh and dry weights were measured on the 6th day after culturing, but temperatures of the boxes were recorded daily by dataloggers. Lateral roots was not formed in the under-watering method (UM) while partially done in the over-spraying method (OM). OM had longer hypocotyl but UM had longer root compared to the other. Two water supplying methods, however, had nearly similar total length adding hypocotyl and root lengths, diameters of middle and upper parts of hypocotyl. OM showed more total fresh weight than UM mainly resulting from increment of hypocotyl fresh weight. The fresh weight increment in OM was caused by relatively higher temperature of culture box compared to UM.

• Korean journal of applied entomology
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• v.50 no.1
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• pp.55-63
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• 2011

This study was conducted to develop an artificial diet for the mugwort looper, Ascotis selenaria (Lepidoptera: Geometridae), which is an insect pest to leaves of citrus (Citrus unshiu). Corn and soybean powder were selected as main nutrient sources for larvae of A. selenaria after several diets consisted of wheat germ, corn, kidney bean and/or soybean were tested for larval development and survival. A higher amount of the main nutrients in the diet increased the larval survivorship. Addition of yeast and cholesterol in diet increased the larval survivorship. Finally the composition of diet was decided as followings; corn 100 g, soybean 100 g agar 25 g, Brewers' yeast 30 g, cholesterol 0.5 g, Vanderzant vitamin mixture 2 g, Wesson's salt mixture 2 g, sorbic acid 2 g, ascorbic acid 2 g, and methyl-4-hydroxybenzoate 2.5 g, and distilled water 1 liter. Development periods of larvae and pupae, survival rate and fecundity of A. selenaria reared on the diet were not significantly different with those on the host plant, citrus leaves. Larvae of early instars were reared in a group, while larvae of later instars (5-6th) were reared individually. Adult mating was conducted in a plastic cage and an oilpaper covered with a gauze was provided as an oviposition site.