• 생물환경조절학회지
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• 제5권1호
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• pp.15-22
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• 1996

오이(샤프 1호)와 암면, 톱밥, 버미큘라이트+펄라이트+피트모스를 1:1:1(이하 체적비임), 펄라이트+피트모스 1:1, 펄라이트+훈탄 7:3, 왕겨와 10mesh 이하로 분쇄한 왕겨 7:3의 비율로 각각 혼합한 배지를 공시하여 배지의 물리성과 작물의 생육 및 수량을 조사하였다. 함수율은 10 mesh 이하로 분쇄한 왕겨에서 42.5%로써 타 배지에 비하여 높았고, 펄라이트와 훈탄을 7:3으로 혼합한 배지에서 31.8%로써 타 배지에 비하여 낮았다. 초장, 엽수, 생체중 및 건물중 등의 생육은 버미큘라이트+펄라이트+피트모스를 1:1:1로 혼합한 배지에서 왕성하였으며, 상품과율 및 수량도 생육과 같은 경향을 나타내었다. K를 제외한 식물 체내 모든 무기양분의 함량은 버미큘라이트+펄라이트+피트모스를 1:1:1로 혼합한 배지에서 높았으며, K의 함량은 펄라이트+훈탄 7:3에서 타 배지에 비하여 높았다.

• 생물환경조절학회지
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• 제9권3호
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• pp.146-150
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• 2000

본 시험은 단고추 자루식 양액재배시 육묘일수에 따른 생육, 수량에 미치는 영향을 구명하고자 풋트당 2주로 하여 육묘일수 20일, 30일, 40일, 50일, 60일 처리구를 두고 재배를 요약하면 다음과 같다. 묘 소질은 육묘일수가 길수록 묘 생육이 좋았고 정식후 개화일 빨랐으나 평균 개화소요일수는 30일묘에서 48일로 가장 짧았고 다음으로 20일묘 순이었다. 뿌리활력은 20일과 30일묘에서 양호하였고 1차측근수는 30일묘가 1.5mm 이하 굵기의 뿌리수가 106.5개로 가장 많았으며 1차 측근장도 1,085cm로 가장 길었다. 정식후 생육은 엽중, 그중,경중 모두 30일묘에서 좋았으며, 수량은 수확초기에는 육묘일수가 긴 60일과 50일묘에서 수량이 많았으나 재배기간이 길어질수록 30일과 40일묘에서 수확량이 많았고 총수량도 많았다.

• 한국버섯학회지
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• 제9권3호
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• pp.101-104
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• 2011

잣버섯 재배를 위해 도입육성된 솔향의 적정 균사생육 온도는 $26{\sim}32^{\circ}C$이었다. 재배적 특성에 있어서 배양일수는 30일, 초발이소요일수 7일, 생육일수는 6일로 총 재배일수가 43일이었으며, 갓색은 연노랑색이었다. 미송톱밥+옥분(90:10)의 배지에 봉지재배로 3차에 걸친 생산력 검정시험을 수행한 결과 수량은 115g이었으며, DNA 다형성 검정결과 GMLL66035와는 다른 국내 고유의 자생균주로 확인되었다.

• 대한환경공학회지
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• 제32권10호
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• pp.928-935
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• 2010

폐 목재 소각 보일러 배가스로부터 질소산화물을 저감하기 위하여 설치된 선택적촉매환원 공정의 시운전 중에 전단에 설치된 여과포의 일부 소실이 발생되었다. 여과포 소실에 따른 불완전 연소 가스는 2단으로 설치된 저온 탈질촉매 표면을 미연탄소로 침적시켜 촉매의 탈질 효율을 급격히 저감시켰다. 활성 저하의 원인 분석을 위하여 XRD, EDX, BET, TGA, SEM 등 다양한 특성 분석을 실시하였다. 재생 방법으로 산 세척, 초음파 수 세척, 공기 중 소성의 방법을 적용한 결과, 공기분위기에서 $450^{\circ}C$로 2시간 소성하는 것이 최적조건 임을 밝혀내었다. 재생된 촉매는 2 cm ${\times}$ 2 cm ${\times}$ 10 cm(촉매 무게 10 g) Honeycomb 촉매 시료를 이용하여 활성을 측정한 결과 사용 전 촉매와 동일한 수준의 활성인 $180^{\circ}C$에서 NOx저감 효율 100%를 나타내었다.

• Animal Bioscience
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• 제34권10호
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• pp.1632-1642
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• 2021

Objective: The hypothesis was that apparent ileal digestibility (AID), basal endogenous losses, and standardized ileal digestibility (SID) of amino acids (AA) are not affected by adding acid to collection containers or bags used to collect ileal digesta from pigs. Methods: Twenty-four growing barrows (initial body weight: 77.8±4.5 kg) that were fitted with a T-cannula in the distal ileum were fed diets for three 7-d periods. An N-free diet and 3 diets containing corn, soybean meal, or wheat middlings as the sole source of AA were used. Within each period, each of the 4 diets were fed to 6 pigs. Among the 6 pigs, digesta from 3 pigs were collected in bags containing no HCl, whereas 40 mL of 3 N HCl was included in the bags used to collect digesta from the remaining 3 pigs. Every other bag collected from each pig was emptied into a container without adding HCl, whereas the remaining bags were added to a container along with 40 mL of 3 N HCl for each bag. All digesta were stored at -20℃ immediately after collection. Data were analyzed using a model that included feed ingredient, HCl in bags, HCl in containers, and all 2-way and 3-way interactions as fixed effects. No 3-way interactions were significant, and data were, therefore, reanalyzed independently for each diet as a 2×2 factorial. Results: There were no interactions between adding HCl to collection bags and to containers, and no effects of adding HCl to collection bags or containers for AID, basal endogenous losses, or SID of most AA were observed. Conclusion: It is not necessary to add acid to digesta collection bags or collection containers if ileal digesta are stored at -20℃ immediately after collection.

• International Journal of Computer Science & Network Security
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• 제24권2호
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• pp.158-168
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• 2024

There is hardly any person in modern times who has not taken soft drinks instead of drinking water. The rate of people taking soft drinks being surprisingly high, researchers around the world have cautioned from time to time that these drinks lead to weight gain, raise the risk of non-communicable diseases and so on. Therefore, in this work an image-based tool is developed to monitor the nutritional information of soft drinks by using deep convolutional neural network with transfer learning. At first, visual saliency, mean shift segmentation, thresholding and noise reduction technique, collectively known as 'pre-processing' are adopted to extract the location of drinks region. After removing backgrounds and segment out only the desired area from image, we impose Discrete Wavelength Transform (DWT) based resolution enhancement technique is applied to improve the quality of image. After that, transfer learning model is employed for the classification of drinks. Finally, nutrition value of each drink is estimated using Bag-of-Feature (BoF) based classification and Euclidean distance-based ratio calculation technique. To achieve this, a dataset is built with ten most consumed soft drinks in Bangladesh. These images were collected from imageNet dataset as well as internet and proposed method confirms that it has the ability to detect and recognize different types of drinks with an accuracy of 98.51%.

• 한국의류산업학회지
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• 제12권3호
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• pp.364-371
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• 2010

The purpose of this study is to weigh the students' backpacks of middle school in daily use and to analyse their physiological responses and subjective senses when carrying backpack in order to promote healthy and comfort school life of girl middle school students. Two female students were subjects who answered the questionnaires on two types of backpack and their metabolism, perspiration and the changes of skin temperature were measured in constant environment chamber, $25{\pm}1$ and $49{\pm}10$% RH. They walked on the treadmill carrying the backpack with the increment of backpack weight, 2 kg, 4 kg to 6 kg. When the backpack increases to 6 kg, the discomfort parameters and responses increases rapidly. Comparing with general type, improved type of backpack showed good results in physiological responses, but not in subjective senses, such as the ease of movement, pain, or total preference, specially in 2 kg and 4 kg. The girl students prefer the general type of backpack which is of fashion and small, when it weighs light such as 2 kg or 4 kg, while they prefer the improved bag which is functional when it is heavy as 6 kg. The longer wearing time of the medium weight, for example, 4 kg without feeling or recognition of any discomfort due to fashion style, might cause the students' posture and health weaker or more vulnerable to the problems.

• 한국염색가공학회지
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• 제34권4호
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• pp.241-249
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• 2022

As for military backpacks in Korea, utility backpack products equipped with various functions along with comfort and convenience are being developed. As a result, the volume and weight of the backpack increase, and many lightweight studies of the materials forming the backpack are being conducted. This study is a basic study on frame lightweight using fiber-reinforced composites to deal with aluminum, a back frame that maintains the shape of a backpack and provides stability when worn by combatants. As is known, only fiber-reinforced composites have sufficient light weight and mechanical properties, but the mechanical properties were reviewed by drilling holes to maximize the light weight. Tensile strength and flexural strength were measured by drilling 6mm, 12mm, 18mm, and 24mm holes, and the tensile strength and flexural strength were measured when 1, 3, 5, and 7 holes of 12mm were increased. As a result, even when the number of holes was increased, tensile strength did not change significantly, and the flexural strength showed to be higher in the case of 3 holes and 5 holes than in the case of 1 hole.

• Asian-Australasian Journal of Animal Sciences
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• 제4권2호
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• pp.177-182
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• 1991

Nutrient evaluation of sago fibre showed that the fibre has potential and could be utilized as feed for ruminants. However, as a source of nutrients, it has limitations arising from low intake, digestibility, crude protein and minerals content. The present study showed that the sago fibre is low in crude protein (3.3%) and high in neutral detergent fibre (72.5%) and acid detergent lignin (25.8%) contents. Treatment of sago fibre with urea increased the crude protein content from 3.3 to 16.7%. Both urea and sodium hydroxide treatment decreased the neutral detergent fibre level from 72.5 to 59 and 56.5%, respectively. Rumen degradation of sago fibre by nylon bag showed that both urea and sodium hydroxide treatments increased dry matter and organic matter disappearance of the fibre significantly. In vivo digestibility of 2% urea treated sago fibre was 47.5% and intake of the fibre was 1.57% of body weight of the lamb.

• 한국균학회지
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• 제36권1호
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• pp.26-30
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• 2008

잎새버섯을 연중 안정적으로 생산할 수 있는 배지를 개발하기 위하여 주재료로 참나무톱밥, 미루나무톱밥 등 4종, 영양원으로 건비지, 미강 등 4종을 혼합하여, 혼합비율별 5처리로 시험을 수행하여 배지재료 및 배지조성별 이화학적 특성을 분석하고 균사배양 및 수량적 특성을 조사한 결과는 다음과 같다. 배지재료별 pH는 참나무톱밥과 참나무칩이 $3.4{\sim}3.5$, 건비지와 옥수수피가 $4.7{\sim}4.8$로 비교적 낮게 나타났고 조지방 함량은 미강이 17.1%로 가장 높았으며, 질소함량은 건비지기 3.2%로서 가장 높게 조사되었다. 배지조성별 pH는 T2, T3, T5 처리가 $4.3{\sim}4.6$으로 T1, T4에 비해 낮았으며, 조지방 함량은 미강의 함량이 많은 T4가 높았고, 질소함량은 T2가 건비지가 12% 함유되어 높게 나타났으며 따라서 C/N율은 T2에서 상대적으로 낮게 나타났다. 배지조성별 용적밀도는 T1이 $0.233g/cm^3$로 $T2{\sim}T5$의 $0.205{\sim}0.214\;g/cm^3$에 비해 높았으나, 공극률은 처리간의 유의적인 차이가 없었다. 균사 배양일수는 T2, T5가 26일로 T1(관행)에 비해 6일 정도 짧았으며, 균사배양 완성율도 각각 98 95%로 우수하였다. T2의 초발이 소요일수는 8일로 관행의 15일보다 7일 정도 짧아 전체 재배일수가 13일가량 단축되었으며, 수량은 338 g/1.5kg 봉지로 T1(관행) 대비 2.3배 증수되었다. 배지의 이화학성 특성중 수량에 영향을 미치는 요인을 찾기위해 상관분석을 실시한 결과 pH, 조지방함량, 질소함량 순으로 나타났다.