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하남규,이보현,김태영,김종은,서광석 한국전기전자재료학회 2001 전기전자재료학회논문지 Vol.14 No.3
The conductive polymers, polyaniline (PANI) emeralidin base and 3,4-polyethylene dioxythiophene(PEDOT) were synthesized and coated on the PET film dealt with acryl type primer to study the electromagnetic shielding effectiveness. When both PANI and PEDOT were coated on the PET film dealt with acryl type priemer, their surface properties such as he adhesive increased. For PANI, when blended with the binder such as PMMA, it adhesive and surface hardness increased, too. The visible light transmittance decreased, while the electromagnetic shielding effectiveness increased, when coated thickness of PANI and PEDOT increased. For PANI, the electromagnetic shielding effectiveness increased as its surface resistance decreased. For PANI, when the surface resistance was 140 Ω/$\square$, the shielding effectiveness was found to be 11 dB in the far field, and 13 dB in the near field at 1 GHz. For PEDOT, when the surface resistance was 200 Ω/$\square$, the shielding effectiveness was found to be 3 dB in the far field, and 7dB in the near field.
시설파프리카에서 양봉꿀벌과 서양뒤영벌의 화분매개활동 효과
이상범,하남규,윤형주,박인균,이경용,강호성,황석조,Lee, Sang-Beom,Ha, Nam-Gyu,Yoon, Hyung-Joo,Park, In-Gyun,Lee, Kyeong-Yong,Gang, Ho-Sung,Hwang, Seok-Jo 한국응용곤충학회 2008 한국응용곤충학회지 Vol.47 No.3
시설파프리카에서 양봉꿀벌은 온도, 조도 그리고 자외선량이 증가하고 습도가 감소하는 오전 11:00부터 15:00, 서양뒤영벌은 오전 09:00에서 11:00에 방화활동수가 가장 많았다. 방화시간은 양봉꿀벌과 서양뒤영벌 방사구가 각각 5.8초와 6.9초로 같은 수준이었으며, 착과율은 각각 94%수준으로 관행구(환풍기사용) 92%보다 2% 높았다. 생산물조사에서 양봉꿀벌과 서양뒤영벌 방사구가 관행구보다 과실의 무게, 길이, 당도, 종자수에서 보다 좋은 성적을 보였다. 따라서 경제성분석(재배기간 10개월/2,310 $m^2$)에서 양봉꿀벌과 서양뒤영벌 방사구가 관행구(팬가동)에 비하여 $7,700{\sim}8,520$천원(10% 이상)의 이익을 가져옴으로서 화분매개곤충을 방사한 효과가 뚜렷하게 나타났다. This study was surveyed the effects by pollinating activity of Apis mellifera and Bombus terrestris released in the paprika vinyl-houses. The foraging activity and behaviour of A. mellifera and B. terrestris visited on the paprika flowers were nearly alike. The pick times of pollinating activity by A. mellifera and B. terrestris were showed the hightest at 11:00 and 15:00, and 09:00 to 11:00, respectively. The rate of fruit set by A. mellifera and B. terrestris released for pollinating paprika were same level with 94%, and these rate were higher than the fruit setting rate which was 92% by fan operated. The qualities of paprika produced by pollinators released were higher than those by fan operated. And weight per fruit, number of seeds per fruit and economical profit per 2,310 $m^2$ were over 10% higher than those by fan operated. Therefore the economical effects by the pollinating activities of A. mellifera and B. terrestris released in the paprika vinyl-houses were obviously demonstrated.
崔周鎬,文炳圓,河南圭 진주산업대학교 농업기술연구소 1994 農業技術硏究所報 Vol.7 No.-
晋州産業大學校 有蠶實驗室에서 1993年 8月부터 10月까지 大成蠶, 富農蠶, 白屋蠶을 供試品種으로 하여 稚蠶 人工飼料育 및 桑葉育에 의한 生育 및 收量을 比較 究明하고자 本 試驗을 實施하여 그 結果를 要約하면 다음과 같다. 1. 經過日數는 人工飼料育에서 桑葉育보다 2일 程度 길었다. 2. 人工飼料育에 비하여 桑葉育이 1萬頭 收繭量은 1.2∼2.8kg 程度 많았으며, 1ℓ當 고치의 數는 桑葉育에서 4∼8個 程度, 品種間에는 富農蠶이 적은 傾向이었다. 3. 全繭重 및 繭層重은 桑葉育에서 무거운 傾向이었으며, 繭層比率은 비슷한 傾向이었으나 白玉蠶은 桑葉育에 비하여 人工飼料育에서 낮았다. 4. 繭長 및 繭幅은 암·수 共히 桑葉育에서 길거나 넓었다. 5. 화용비율은 人工飼料育에서 높았으며, 品種間에 있어서는 白玉蠶이 높은 傾向이었다. The purpose of this study is to examine the growth and the cocoon yield of the artificial diet group and the mulberry leaf diet group. The subjects of experiment were Te-sung-jam, Bu-nong-jam and Peck-ock-jam. The study was conducted from August to October, 1993 in the Jam-breeding plot of Chinju National University. 1. The larva progression term of the artificial diet group was 2 days longer than the mulberry leaf diet group. 2. The 20,000 head cocoon yield of the mulberry leaf diet group was larger than that of the artificial diet group. The number of cocoon in the mulberry leaf diet group was 4-8. Bu-nong-jam tended to be relatively small. 3. The cocoon weight and cocoon layer weight tended to be heavier in the mulberry leaf diet plot. The percentage of cocoon layer weight was almost the same, but the artificial diet group was lower than that of the mulberry leaf diet in Peck-ock-jam. 4. The cocoon length and width of both was longer and wider than those of the others. 5. The paration rate of both was longer and wider than that of the others. 6. The paration rate of the artificial diet group was high, of the three jams. Peck-ock-jam tended to be high.
崔周鎬,文柄圓,河南圭 진주산업대학교 농업기술연구소 1995 農業技術硏究所報 Vol.8 No.-
1994年 8月부터 9月까지 白玉蠶, 大成蠶을 供試品種으로하여 누에의 齡別 人工飼料育에 의한 生育 및 數量을 比較 糾明하고자 본 試驗을 實施하여 그 結果를 要約하면 다음과 같다. 1. 經過日數에 있어서 壯蠶期의 葉質不良으로 因하여 全齡 人工飼料育의 5齡 經過日數가 1日 5時間 짧았으며 全齡經過에서도 4時間 程度 짧았다. 2. 化용比率에 있어서는 人工飼料에 의한 飼育期間이 길수록 높아 人工 飼料에 의한 飼育에서 蠶作이 安定되었다. 3. 全繭重은 人工飼料에 의한 飼育期間이 길수록 가벼운 傾向이었으나 특히 全齡 人工飼料育에 比하여 4齡 人工飼料育에 있어서 顯著하게 낮았다. 4. 單繭重에 있어서는 人工飼料飼育 期間이 길수록 가벼운 傾向으로 全齡 人工飼料育에 있어서 顯著하게 낮았다. 5. 繭層比率에 있어서도 人工飼料에 의한 飼育期間이 길수록 낮은 傾向이었다. The purpose of this experiment the growth and yield of cocoons bred by artificial feed at each instar period. The period of experiment was from August until September 1994. And the experimental subjects were Paekok-jam and Taesung-jam. The results obtained are as follows: As to the number of passage days, because of the bad quality of mulberry leaf, the number of the fifth-instar-period passage days was 1 day and 5 hours short in the artificial-feed bred cocoon at total instar period. The total-instar-period passage was also 4 hours short. The pupation rate was higher according as the artificial-feed-breeding period was long. So the artificial feed enabled more stable cocoon breeding. The total cocoon weight was lighter according as the artificial-feed-bred period was long. Especially, it was markedly light in the fourth-instar-period artificial-feed-bred cocoons. The silk weight was lighter according as the artificial-feed-bred period was long. And it was outstandingly light in the total-instar-period artificial-feed-bred cocoons. The percentage of cocoon layer weight was also lower according as the artificial-feed-bred period was long.