BW를 이용하여 느타리를 재배함에 있어 면실박을 대체 할 수 있는 재료를 찾기 위해 시험이 진행되었다. 일반성분 분석에서 BW가 면실박에 비해 단백질 함량은 다소 떨어졌으나 자실체의 생육특성에서 BW 혼합 시 대조구와 수량 등의 생육특성이 유사함을 확인할 수 있었고, 자실 체의 구성아미노산 조성 확인결과 처리구 간 아미노산의 함량은 큰 차이를 나타나지 않았다. 따라서 BW가 느타리 배지제작에 있어 면실박을 대체하여 사용될 수 있을 것으로 판단된다.

In this study, we determined the effect of different concentrations of Cd on the growth of Pleurotus ostreatus mycelia, which was confirmed using PDA, PDB, and a column test. The efficacy of treatment was evaluated using Cd at two concentrations, 10 ppm and 100 ppm. The extent of mycelial growth on PDA and PDB was similar to that observed in the untreated groups and those treated with 10 ppm Cd. However, it was found that the mycelial growth was suppressed in a system treated with Cd at concentrations of 100 ppm. Moreover, the extent of mycelial growth observed upon conducting a column test was similar to that obtained using PDA and PDB. When the composition of free amino acids in PDB was determined, their levels in the group treated with 100 ppm Cd were found to be similar to those of the control. However, the amounts of 15 amino acids in the group treated with 10 ppm of Cd had increased compared to those detected in the control.

표고 시설재배에 있어 적정 상대습도를 구명하여 고품질 버섯생산 데이터를 제시하기 위해 상대습도를 달리 처리한 결과는 다음과 같다. 상대습도에 따른 생육특성을 조사한 결과, 갓의 명도값은 RH65%에서 높았고, 적색도는 RH95%에서 높았으며, 황색도는 상대습도 간 유의적 차이가 나타나지 않았다. 갓의 경도는 RH95%에서 높은 경향이었다. 갓직경은 RH95%에서 높게 측정되었고, 갓두께는 RH95%에서 높았다. 대길이의 경우 유의적 차이가 나타나지 않았지만 상대습도가 증가할수록 대길이가 증가하는 경향을 보였으며, 대직경은 RH95%에서 높게 측정되었다. 수량은 RH95%에서 유의적으로 높게 측정되었다. 화고발생률은 상대습도가 낮아질수록 높게 조사되었다. 위의 결과를 통해 RH95%에서 표고 자실체의 크기, 수량이 높게 조사되었지만 버섯의 갓색이 어둡고 화고 발생 비율이 낮은 결과를 나타내어 시설재배에서 고품질의 화고 버섯을 생산 할 수 있는 상대습도는 65%와 85%인 것으로 판단되었다.

In this study, we investigated the morphological characteristics and antioxidant ability of mushroom cultivar Lentinula edodes ‘Nongjingo’ fruiting bodies after exposure to various light conditions. Color differences between mushrooms treated with mixtures of LED light revealed that mushrooms displayed lighter color shades when compared to the control group (fluorescent light treated mushrooms). Redness increased and yellowness decreased after exposure to all treatments other than the fluorescent control. Measurement of growth characteristics of ‘Nongjingo’ fruiting bodies showed increases after exposure to all mixed LED treatments. In addition, the uniformity of fruiting bodies was higher when using LED light compared to fluorescent light. The measurement of stem diameters did not show a significant difference between the treatments, however, diameters were slightly larger with exposure to white-green LED. Moreover, stem length was longer in the mixed LED treatments when compared to those exposed to fluorescent light. Examination of the ratio of stem diameter to stem length revealed that the diameter of the stem was greater than the length. The antioxidant activity of water extracts made from Nongjingo fruiting bodies grown under mixed LED conditions was compared to those from mushrooms grown under fluorescence light conditions. The highest antioxidant activity was observed from mushrooms treated with white LED; however, no significant difference was found between mushrooms exposed to white-green LED compared to white-blue LED. The treatment showed higher antioxidant ability than vitamin C. Our results confirm that treatment of white LED and white-blue LED affects the growth and antioxidant ability of Nongjingo mushroom fruiting bodies.

LED 혼합광에 따른 표고 품종별 특성을 1주기를 기준으로 조사한 결과 다음과 같다. ‘산조701호’의 경우 백 색광 보다 white+green에서 수량이 147g으로 가장 많았고, 유효경수도 4.7개로 백색광원 보다 많았다. 갓크기 는 white+blue에서 60.1로 다른 처리구에 비해 가장 컸고, 갓굵기도 26.4mm로 가장 컸다. 대길이와 대굵기는 처리구 모두 크게 차이가 나지 않았다. 갓의 명도값은 white+green에 34.4로 다른 처리구에 비해 다소 높았으 며, 황색도와 적색도에서는 크게 차이가 나지 않았다. 갓의 경도값도 처리간 차이가 크게 발생하지 않았다. ‘농진고’의 경우 수량은 white+green에서 80.3g으로 가장 많았고, 유효경수도 1.2로 다른 처리구에 다소 많은 경향이었다. 갓직경은 white+blue에서 68.3mm로 가장 컸고, 갓굵기는 white+green에서 24.8mm로 다른 처리구 에 비해서 크게 나타났다. 대길이는 white+green에서 43.3mm로 가장 컸고, 대직경은 White에서 16.1mm로 가 장 컸다. 갓의 명도, 황색도, 적색도는 모두 크게 차이가 나지 않았으며, 갓의 경도도 처리간 차이가 크게 발 생하지 않았다. 이상의 결과 수량성과 유효경수는 ‘산조701호’와 ‘농진고’ 모두 white+green에서 우수한 결과 가 나타났으나 갓의 생장특성에서는 다소 다른 차이가 나타났다.

In this study spent mushroom substrate has ingredient raising rice bed soil. spent mushroom substrates are organiccontent is 60.72% were nitrogen - phosphoric acid - potassium is 1.39 - 0.89 - 0.81% of the chemical characteristics determine.Post-harvested mushroom substrates of the stabilization process, the temperature of the 20 days time progress in the pH of therise and fall of temperature down were germination index also 77, as identified, Spent mushroom substrate bed soil for raisingrice Ingredient to take advantage of the 20 days or more stabilization process needed to be investigated. Rice seed germinationcharacteristic is in the common bed soil for raising rice ingredients manufactured control group and the comparison in spentmushroom substrate is 10% or less of a mixed experimental population of the germination rate is 82% was more than averagedays to germination and germination energy, even a statistical significant difference is or control group than good level was ok.Growth initial also spent mushroom substrate is 10% or less of a mixed experimental population of shoot dry matter (top) andgrave less than control group higher as confirmed spent mushroom substrates are bed soil for raising rice ingredients are likely totake advantage of the high, as was the judge.

A computational fluid flow analysis of a car has been accomplished to explain the lift characteristics according to the changes of wiper angle and car speed. The present study established the process to get the lift coefficient distribution on the whole range of a wiper operating angle. From the result of the present research, it could be seen that the lift coefficient of a wiper with the lower wiper angle had relatively smaller magnitude. On the other hand, the lift coefficient with the wiper angle near 45° was relatively larger than that with the other wiper angles. The present study also verified the usefulness of the lift coefficient that the lift distributions of various car speeds could be derived from the result of a lift coefficient distribution for only a car speed.

Generally, the characteristics of battery cover has been effected on the expected life span and durability of battery. In this study, the heat shield performance of battery cover was investigated experimentally. Also, the cooling effect of battery for each conditions(material and structral conditions of battery cover) was investigated. As the results, the heat shield performance for heating case is excellent in the case of thickness increasing of battery cover. The characteristics for heating case is more effected on the thermal damage than that of cooling case.

An insulator is widely used for automobile parts to protect the thermal damage and noise from the engine. In this paper, the heat shield performance of insulator in the automobile parts has been investigated experimentally. Also, the experimental results are compared with the numerical analysis. It was tested for the effects of heating temperature and insulator material on heat shield performance. As a results, in the range of heating temperature 95℃∼175℃, the heat shield performance is enhanced with increasing heating temperature. Furthermore, glass wool and Formed mat have similar heat shield performance. So, it is very effective to use the glass wool as insulator in the range of 95℃∼175.

This study was carried out to investigate the changes in the amount of 20 free amino acids in PDB (Potato Dextrose Broth) medium during the incubation period while cultivating Lentinula edodes. The total incubation period was 90 days, and the total amount of free amino acids was confirmed every 45 days. Among the 18 kinds of amino acids whose increase and decrease patterns were confirmed, 10 amino acids were increased compared to that in the control, among which cysteine increased from its initial value of 9,889 ± 3 μg/L to 12,909 ± 2 μg/L at 45 days and 29,256 ± 4 μg/L at 90 days. Six amino acids with decreased expression patterns were identified. Arginine decreased to 83,751 ± 2 μg/L after 45 days from its initial value of 161,787 ± 1 μg/L and to 79,055 ± 7 μg/L at 90 days.

고해상도의 지형 데이터는 용량이 크기 때문에 GPU메모리에 데이터 전체를 적재할 수 없다. 따라서 out-of-core기반의 방법이 많이 사용된다. 그러나 보조기억장치의 대역폭 한계로 인하여 실시간으로 지형을 렌더링하기 어렵기 때문에 GPU로 웨이블릿 변환을 수행하여 압축된 DEM 데이터를 전송한 후 압축 해제하여 렌더링 하는 방법이 사용된다. 하지만 이 방법은 텍스처로부터 주기적으로 값을 읽어와 정점을 변환하고 메쉬를 생성해야하므로 비효율적이다. 이 논문에서는 웨이블릿 압축된 근사 계수 값을 정점의 속성으로 저장하고 기하 쉐이더에서 압축을 해제해 지형을 효율적으로 렌더링 하는 기법을 제안한다. 제안하는 방법은 근사 계수 값을 정점의 속성으로 주어 지형 텍스처의 전송량을 줄일 수 있다. 또한 지형 텍스처로부터 별도의 업로드 과정 없이 메쉬의 생성이 가능하므로 오버헤드가 발생하지 않아 효율적인 렌더링이 가능하다.

대용량 지형 데이터는 전체를 CPU나 GPU메모리에 적재할 수 없기 때문에 하드디스크와 같은 보조기억장치에서 필요한 부분을 읽어와 렌더링하는 out-of-core기반의 방법이 사용된다. 하지만 out-of-core 기반의 방법은 하드디스크로부터 GPU메모리까지 데이터를 읽어올 때 대역폭한계로 인해 데이터의 전송시간이 길어진다. 이 논문에서는 Direct Compute를 이용하여 대용량 지형 데이터를 GPU에서 웨이블릿 기법으로 압축한 후 계수들을 이미지의 RGBA채널에 대응시켜 저장하고 렌더링 단계에서 이를 압축 해제하여 사용하는 방법을 제안한다. 이 방법은 GPU를 이용하여 압축된 지형 데이터를 빠르게 압축 해제해 사용함으로써 데이터의 전송량을 줄이고 웨이블릿 계산을 병렬적으로 수행하므로 전체 렌더링 시간을 단축할 수 있다.

Numerical study is conducted to predict effects of radiative heat loss and fuel composition in synthetic gas diffusion flame diluted with CO₂. The existing reaction models in synthetic gas flames diluted with CO₂ are evaluated. Numerical simulations with and without gas radiation, based on an optical thin model, are also performed to concrete impacts on effects of radiative heat loss in flame characteristics. Importantly contributing reaction steps to heat release rate are compared for synthetic gas flames with and without CO₂ dilution. It is also addressed that the composition of synthetic gas mixtures and their radiative heat losses through the addition of CO₂ modify the reaction pathways of oxidation diluted with CO₂.

The coal gasification fuel is important to replace petroleum fuel. Also they have many benefits for reducing the air pollution. Measurements on the combustion characteristics of synthetic gas from coal gasification have been conducted as compared with LPG in constant volume combustion chamber. The fuel is low caloric synthetic gas containing carbon monoxide 30%, hydrogen 20%, carbon dioxide 5%, and nitrogen 45%. To elucidate the combustion characteristics of the coal gasification fuel, the combustion pressures, combustion durations, and pollutants(NOx, CO2, CO) are measured with equivalence ratios(ø), and initial pressures of fuel-air mixture in constant volume chamber. In the case of the coal gasification fuel, maximum combustion pressure and NOx concentration are lower rather than LPG fuel. However CO and CO2 emission concentration are similar to that of LPG fuel.