http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 金在河 (검색결과 237 건)
- 무료
- 기관 내 무료
- 유료
-
Fatigue Damage Spectrum을 이용한 궤도차량의 진동환경 비교
김재하,최병민,우호길 한국군사과학기술학회 2000 한국군사과학기술학회지 Vol.3 No.1
This paper provides the test results of tracked vehicle at each driving condition and life cycle. Fatigue Damage Spectrum(FDS) has evaluated with the Power Spectrum Density(PSD) and the life time of equipment. Finally, provisional vibration qualification test level is evaluated.
-
-
鄭昌朝,趙漢玉,金洙賢,金在河 제주대학교 방사능이용연구소 1985 연구보고 Vol.1 No.-
柑橘의 貯藏性 向上을 爲한 ?? 線 照射가 濟州産 溫洲柑橘에 미치는 影響을 調査하였다. 溫洲柑橘 4個 系統을 10,000Ci, ?? 線源을 利用 0, 50, 100, 150Krad水準으로 照射하여 92日間 半地下式 貯藏庫에 貯藏, 調査한 結果를 要約하면 아래와 같다. 1. 貯藏終了時까지의 柑橘 累積腐敗率은 中生系인 米澤(T₂) 74.32%, 早生溫洲(T₁) 69.67%, 中晩生系林溫洲(T₃) 61.79%와 晩生系 靑島(T₄)가 64.33%였다. 反面 서울地域의 腐敗率은 D-72에서 T₁; 28%, T₃; 25% 및 T₄; 24%로 濟州地域에 比해 越等히 낮았다. 柑橘의 腐敗는 貯藏初期에 徐徐히 增加하나 照射後 59日부터는 急激히 上昇하기 始作하였다. 腐敗率과 柑橘系統 사이에는 高度의 相關關係가 있었으며 貯藏性은 T₃와 T₄가 가장 우수하였다 ??. 高放射線 照射水準(100, 150Krad)은 貯藏中期까지 柑橘貯藏에 效果가 있었으나 照射 76日 以後에는 對照區와 差가 없었다. 2. 放射線 照射는 貯藏期間中 柑橘의 酸度를 減少 시켰으며 平均 酸度는 T₁; 1.01%, T₃; 1.01%, T₄; 0.84% 및 T₂; 0.77%로 柑橘系統 및 照射線量間에는 高度(P<0.01)의 有意差가 認定되었다. 3. 모든 處理區에서 還元糖과 全糖含量은 增加하고 있었으나 統計的 有意性은 없었고 50Krad照射區에서만은 對照區에 比해 有意的(P<0.01)으로 減少하고 있었다. 糖度는 T₁,T₄가 T₂, T₃에 比하여 높았으며 高線量水準(100, 150Krad)에서 Control에 比해 有意的인 減少가 있었다(P<0.01). Ascorbine 酸含量은 모든 處理區에서 貯藏時期가 經過됨에 따라 減少하였으며 高照射線量水準에서 對照區에 比해 有意的인 減少가 있었다(P<0.01). A study was conducted to evaluate the effect of ?? irradiation on the preservation of Satsuma mandarin in Cheju Island. Four varieties (S. m. early, S. m. Komezawa, S. m. Hayashi and S. m. Aoshima) were irradiated using 10,000 Ci, ?? ray with dosages of 0, 50, 100 and 150Krad. During 92 days of storage the effects of irradiation on mandarin properties were as follows; 1. At the end of storage period the accumulated fruit rotting percentage were S. m. Komezawa (T₂); 74.32%, S. m. early (T₁); 69.67%, S. m. aoshima (T₄); 64.33% and S. m. Hayashi (T₃); 61.79%. The rottings steadily increased from the early stage of storage and rapid spoilage continued after 59 days of irradiation. A high correlation existed between fruit rotting and varieties (T₃; Y=0.78x-15.30, T₄; Y=0.79x-12.29, T₁; Y=0.93x-9.01 and T₂; Y=0.79x-13.49). High dosages (100 and 150 Krad) improved fruit preservation during the mid storage stage. However 76 days after high dose irradiation there was no significant difference a rotting between irradiated fruit and the control. 2. Irradiation decreased acidity of fruit during storage (P<0.01). The mean acidities of examined varieties were T₁; 1.01%, T₃; 1.01%, T₄; 0.84% and T₂; 0.77%. A significant differences were observed in acidity between varieties and dosages (P<0.01). 3. With one exception in all treatments, the increase in free and total sugar content was not statistically significant. The exception was the 50 Krad treatment where the total sugar content decreased. T₁and T₄showed slightly higher value of Brix than T₂and T₃and were significantly (P<0.01) decreased by higher dosage. The ascorbic acid content in all treatments decreased with length of storage and also decreased significantly with a higher dosage.
-
-
-
吳德鐵,金在河 濟州大學 海洋資源硏究所 1980 해양과환경연구소 연구논문집 Vol.4 No.-
1979年 12月부터 1980年 1月까지 濟州港域의 6個所 海水를 採水하여 水層別로 Total Coliform(TC ), Fecal Coliform(FC) 및 General Bacteria (GB) 를 調査하고 pH, 水溫, 氣溫등도 함께 側定하였다. 水溫은 平均 15∼16.75℃ 였으며 陸水의 流入이 많은 곳은 表面數가 深層水보다 낮았다. pH는 陸水의 流入이 가장 많은 Site 4가 가장 낮아서 平均 7.83이였고 Site 1이 平均 8.33으로 가장 높았으며 全體的으로 全期間동안 7.7∼8.6 사이였다. TC, FC 數는 Site 4가 가장많아 100ml當 各各 86,166, 9,208이고 GB는 ml 當 52,496 個體였으며, 가장 낮은 쪽은 Site 1로서 各各 100ml當 245,81 및 ml당 425 個體였다. 水層別로는 採水場所에 따른 差異는 있으나 모든 곳이 다 表層이 越等히 많았다. FC와 TC 比率은 全般的으로 4.46에서 37.9% 사이였다. 調査된 資料를 分析할때 多量의 奮便性 細菌이 濟州市 下水를 通하여 濟州港으로 流入되고 있음이 나타났고, Salmonella 등 病原性 細菌의 存在가 예상되어 下水의 處理가 要望된다. Distribution of total coliform bacteria (T. C), fecal coliform bacteria ( F C ) and general bacteria ( G. B) together with pH, water temperature and air temperature were surveyed periodically from December 1979 to January 1980 at six sites in Jeju Harbor. The sampling was done form both surface and bottom level for each sites. The average water temperature throughout the period of investigation was 15℃∼16.75 ℃. It was indicated that at the estuary where a large amount of inland water is flowing in, the temperature of surface water showed lower than bottom layer. The lowest and the highest pH showed at site 4 and site 1 whose value were 7.83 and 8.33 respectively. Overall pH value throughout the investigation period was between 7.7 and 8.6. The highest viable counts of TC, FC and GB were observed on site 4 with 86, 166/100ml, 9,208/100ml and 52,496/ml respectively, while the lowest counts were on site 1 with 245/100ml, 81/100ml and 425/ml respectively. Differences in counts between surface and bottom were not much agreeable throughout the tested sites, but surface levels were remarkably higher than bottom for every sites. The ratio of Fecal colifom to Total coliform (Fc:Tc) were ranged from 4.46 % to 37. 9 %. Reviewing the data obtained in this investigation, it is obvious that a large amount of fecal bacteria are flowing into Jeju harbor through untreated city sewage. Therefore, it is desirable to set up sewage disposal facilities in order to prevent serious pollution problems with pathogenic bacteria such as Salmonella, Vibrio etc.
-
-
김재하,Kim, Jae-Ha 대한약리학회 1994 대한약리학잡지 Vol.30 No.2
In rat atrium the characteristics of purinergic receptors were investigated by observing the effects of some purinergic receptor agonists and antagonists on action potential and contractile force. The statistically significant effects of $ATP(10^{-6}{\sim}10^{-3}M)$ and adenosine $(10^{-6}{\sim}10^{-3}M)$ on normal action potential characteristics were a dose-dependent shortening of action potential duration $(APD_{90})$ by both agents and hyperpolarization by $ATP(10^{-4},10^{-3}M)$. $CAP(10^{-8}{\sim}10^{-4}M)$, an $A_1$ adenosine receptor agonist, shortened $(APD_{90})$ markedly in a dose-dependent manner and these effects were almost abolished by $DPCPX\;(10^{-6}\;M), an $A_1$, adenosine receptor antagonist, but not affected by $DMPX(2{\times}10^{-6}\;M)$, an $A_2$ adenosine receptor agonist. On the other hand, CGS $21680(10^{-7}{\sim}10^{-4}M)$, an $A_2$ adenosine receptor agonist, elicited a slight shortening of $(APD_{90})$ and these effects were inhibited by DPCPX but persisted in the presence of DPMX. Adenosine $(10^{-6}{\sim}10{\-4}\;M)$ decreased the basal contraction of atrial muscle in a dose-dependent manner and these effects were not inhibited by DMPX but by DPCPX. These results suggests that purinergic receptor agonists depress the cardiac activity by a short ening of action potential duration and this effect is mostly mediated by $A_1$ adenosine receptors in rat atrium.
-
-
eArticle연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
