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      • 韓牛 肥育促進을 위한 Cobalt(Co) 給與效果에 關한 硏究

        尹熙燮,吳世正,姜昌鎭,金時明 건국대학교 1978 學術誌 Vol.22 No.1

        For an increase of body weight, feed efficiency, and profitability of Korean cattle fattening through the effective fattening of the Korean cattle concentrates with an addition of 0.05 mg of cobalt for test plot I, 0.05 mg of cobalt for test plot II 0.10 mg, and 0.15 mg for test plot III, per kg of concentrate were given to sampled cattle. Experiments were designed to repeat control plot and three test plots (I, II, III) five times far 140 days on the 20 cattle sampled by completely randomized design. The results of the experiments are presented in the following. I. Amount of Body Weight Gain The average weight gain per head, and weight gain per day are commonly highest in the test plot II (132.6 kg ㆍ 0.92 kg), second in the test plot I (128.5 kg ㆍ 0.91 kg), third in the test plot III (121.1 kg ㆍ 0.87 kg), and lowest in the control plot (120.4 kg ㆍ 0.87 kg). The rull hypothesis was accepted while there was no statistical significance between the test plots and the control plot, and also among the test plots. But the test plots with an addition of cobalt resulted in higher gain of body weigh comparing to that of the control plot. II. Amount of Feed Intake and Feed Effeciency The efficiency of concentrate required to increase on Kilogram of beef was highest in the test plot II 6.42 kg, second in the test plot I 6.53kg, third in the test plot III 7.00 kg, and lowest in the control plot 7.18 kg respectively. In case of flay and pellets the test plot I showed the highest weight gain, the test plot II, and III resulted in the same performance, and the control plot was the lowest one in the gain of body weight. There was no statistical significance between the test plots and control plot, and among the test plots. Thus, the test plots with ail addition of cobalt comparing to the control plot resulted in a higher feed efficiency. III. Profitability Feed costs required to increase one Kilogram of fresh meat was 636 casts won in the test plot II, 641 won in the test plot I, 685 fresh meat won in the test plot III, and 703 won in the control plot respectively. While there was no statistical significance with profitability, the test plot with an addition of cobalt required lower feed cost increase one kilogram if fresh meat comparing to the control plot. IV. Fattening outcome Of the sampled 20 cattle 18 cattle were slaughtered after 6 days from the last day of the tests. The carcass rate of the sloughtered cattle was 56.4 percent in the test plot II, 55.0 percent in the test I, 54.8 percent in the test plot III, and 54.6 percent in the control plot. There was no statistical significance with the rate of carcass, but the test plats with an addition to cobalt presented a little higher carcass rate comparing to the control plot. It was rather difficult to distinguish meat color with eyes, but comparing to the control plot the meat color of the test plots was heavily red.

      • 볏짚의 飼料價値增進에 關한 硏究 : According to Harvesting and Fertilization Control Method 施肥 및 收穫方法에 의한

        尹熙燮,吳世正 건국대학교 1981 學術誌 Vol.25 No.1

        For the improvement of the feed value of the rice straw, this experiment was carried out to sprinkle 1%(T1), 2%(T2) and 3%(T3) of the urea solution on the leaves of the rice on Sep.25(C1), Sep.30(C2) and Oct.5(C3) before 20 days of the harvest time. The species of the rice sampled in this experiment was No. 23 of Mil-Yang. The results of this experiment carried out according to this method are summarized as followings. 1.Yield of the rice straw The straw sampled was dried in the field 18 days after cutting down the rice. The results were as same as shown in the below table. (kg/a) T1 T2 T3 C1 67.65 73.20 67.56 72.6 C2 72.75 71.40 66.60 66.00 C3 57.81 64.80 65.25 76.50 * C1 : harvested on Sep. 25 C2 : harvested on Sep. 30 C3 : harvested on Oct. 5 T1 : 1% of the urea solution T2 : 2% of the urea solution T3 : 3% of the urea solution As shown in the above table, there was no statistical significance between the control plot and the test plots by the harvest time. As it was considered to be damaged by the rice locust just before finishing the experiment, the yield of C3 was a little small. 2.Protein content of the rice straw The results of analizing the protein content were as same shown in the below table. (%) T1 T2 T3 C1 5.08 6.11 8.73 10.38 C2 4.59 4.66 7.60 6.56 C3 4.35 4.33 4.89 6.02 There was a statistical significance of p<0.05 between C1 and T1, T2, T3. Especially T2 and T3 were a high level. There was a statistical significance of p<0.05 between C2 and T2, T3, between C3 and T3, no significance between C2 and T1, between C3 and T1, T2. 3.Contents of crude fat, crude fiber, nitrogen free extract, and crude ash in the rice straw There was no statistical significance between the control plot and the test plots by the harvest time, but the test plots were better in the quality and the green degree of the rice straw than the control plot. 4.Yield of the rice The rice was dried in the field 18 days after cutting down the rice and threshed. The results were as same as shown in the below table. (kg/a) T1 T2 T3 C1 64.5 62.4 63.0 61.8 C2 66.0 70.5 63.6 64.8 C3 69.6 68.1 70.8 60.3 There was no statistical significance between the control plot and the test plots by the harvest time in the yield of the rice. As mentioned above, it is clarified that for the improvement of the feed value of the rice straw, it was the best way to harvest timely on Sep.25-30 and to sprinkle 2-3% of the urea solution on the leaves of the rice to increase the content of protein and it didn't affect the yield of the rice.

      • KCI등재

        Use of Unmanned Aerial Vehicle for Multi-temporal Monitoring of Soybean Vegetation Fraction

        윤희섭,박현수,김학진,이원석,이경도,홍석영,정근호 한국농업기계학회 2016 바이오시스템공학 Vol.41 No.2

        Purpose: The overall objective of this study was to evaluate the vegetation fraction of soybeans, grown under different cropping conditions using an unmanned aerial vehicle (UAV) equipped with a red, green, and blue (RGB) camera. Methods: Test plots were prepared based on different cropping treatments, i.e., soybean single-cropping, with and without herbicide application and soybean and barley-cover cropping, with and without herbicide application. The UAV flights were manually controlled using a remote flight controller on the ground, with 2.4 GHz radio frequency communication. For image pre-processing, the acquired images were pre-treated and georeferenced using a fisheye distortion removal function, and ground control points were collected using Google Maps. Tarpaulin panels of different colors were used to calibrate the multi-temporal images by converting the RGB digital number values into the RGB reflectance spectrum, utilizing a linear regression method. Excess Green (ExG) vegetation indices for each of the test plots were compared with the M-statistic method in order to quantitatively evaluate the greenness of soybean fields under different cropping systems. Results: The reflectance calibration methods used in the study showed high coefficients of determination, ranging from 0.8 to 0.9, indicating the feasibility of a linear regression fitting method for monitoring multi-temporal RGB images of soybean fields. As expected, the ExG vegetation indices changed according to different soybean growth stages, showing clear differences among the test plots with different cropping treatments in the early season of < 60 days after sowing (DAS). With the M-statistic method, the test plots under different treatments could be discriminated in the early seasons of <41 DAS, showing a value of M > 1. Conclusion: Therefore, multi-temporal images obtained with an UAV and a RGB camera could be applied for quantifying overall vegetation fractions and crop growth status, and this information could contribute to determine proper treatments for the vegetation fraction.

      • 生菌劑의 肉鷄에 對한 成長促進效果

        尹熙燮,金昌漢,張京鎭,尹汝昌,高泰松 건국대학교 1984 學術誌 Vol.28 No.2

        In order to investigate the effect of Bacillus toyoi (Viable spore) on the growth of broilers, the utilizability of nutrients, stability of the bacteria in the diets, and the excretion of viable cells, a commercial diet (basal) added 0.02% (0.02 diet) and 0.10% (0.10 diet) of Toyocerin powder (contained Bacillus toyoi spore 109/g) in substitute for bacitracin of the basal diet were prepared. Day-old broiler chicks of White strain were fad with starters of basal, 0.02 and 0.10 diets for the four weeks and those of finishers far the next three weeks. During four weeks of starters feeding, the growth of chicks fad 0.02 diet and 0.10 diet were higher 1.4% and 1.1%, respectively, compared with those of basal diet. Feed conversions of chicks fed 0.02 and 0.10 diet showed 2.6 and 1.8% higher values than that of basal diet. But the effect of 0.02 an 0.10 diet feeding in chicks were not found during the finishers feeding. Nitrogen balance were 16-20 mg per gram of diets and protein retention were 53-63% of diets protein while experimental diets and starter and finisher feeding did not affect on the nitrogen balance and protein retention of the broilers. Nitrogen corrected metabolizable energy (MEn) were 3.273-3.287 kcal par gram of the starter diets and 3.358-3.394 kcal far the finisher diets, showing similar values among the experimental diets. And the metabolizability of starter diets were 74.5-74.8 % and those of finisher diets showed 77.3-78.5%, though significant differences were not found among the experimental diets. Also MEn value per gram protein consumed were 14.75-15.29 kcal while the values per protein retained in chicks showed 26.03-27.99 kcal. B. toyoi in starter feed and finisher feed of broiler which added 0.02 and 0.10% of Toyocerin powder was quite stable during storage at room temperature for 4 weeks. In viable cell counts in excretes, addition of 0.02 and 0.10% Toyocerin powder were almost similar to basal until the second weeks of feeding, but increased remarkably from the third weeks, and increased to 121 fold and 148 fold, respectively, than basal at the 7th weeks of feeding.

      • KCI등재

        내담자의 애착과 전이애착, 상담자의 애착과 역전이 관리능력이 작업동맹과 상담성과에 미치는 영향

        윤희섭,정현희 한국상담학회 2012 상담학연구 Vol.13 No.5

        본 연구는 총체적 모델과 애착이론에 근거하여 내담자의 애착과 전이애착, 상담자의 애착과 역전이 관리능력이 작업동맹과 상담성과에 어떤 영향을 미치는지 알아보고, 이러한 변인들 간의 관계를 살펴보는 데 목적이 있다. 연구를 위해 전국의 12개 대학 학생상담센터에서 5회기 이상 상담이 진행된 사례의 상담자 91명과 내담자 169명의 쌍 데이터를 수집하였다. 수집된 자료는 구조방정식 모형을 이용하여 분석되었다. 연구결과는 다음과 같았다. 첫째, 상담자의 애착은 작업동맹에 직접적으로 영향을 미치고 역전이 관리능력을 통해 간접적으로도 영향을 미치는 것으로 나타난 반면, 내담자의 애착이 작업동맹과 상담성과에 미치는 영향은 모두 유의하지 않은 것으로 나타났다. 둘째, 내담자의 전이애착이 작업동맹에 미치는 영향을 유의하지 않았으나, 상담성과에 미치는 영향을 유의한 것으로 나타났다. 셋째, 상담자의 역전이 관리능력은 상담성과에 영향을 미치는 것으로 나타났다. 넷째, 작업동맹이 상담성과에 미치는 영향은 유의한 것으로 나타났다. 이러한 결과는 상담에서 긍정적인 작업동맹과 상담성과를 얻기 위해서는 내담자의 특성뿐만 아니라 상담자의 특성도 함께 고려되어야함을 시사해준다. The purpose of this study was to explore the effects of client's attachment and transference(attachment to the counselor), counselor's attachment and countertransference management ability on working alliance and counseling outcome. Participants of this study were 169 clients and 91 counselors at university counseling centers. Data were analyzed by structural equation modeling analysis. Results were as follows. First, counselor's attachment not only had a direct effect but also had an indirect effect through the mediation of countertransference management ability on working alliance. However client's attachment did not have consistent effects on working alliance and counseling outcome. Second, client's transference predicted counseling outcome such as satisfaction, awareness and change. Third, counselor's countertransference management ability had an effect on counseling outcome. Fourth, working alliance had an effect on counseling outcome. These results suggest that counselor's trait as well as client's needs to be considered to promote positive working alliance and counseling outcome.

      • KCI등재

        식물명 제시가 초등학교 저학년 어린이들이 식물 인식에 미치는 효과

        윤희섭,임영득 韓國生物敎育學會 2000 생물교육 Vol.28 No.4

        The purpose of this thesis is to find out the recognition level of elementary students for plant names through putting the plant names under the plant pictures on 'Wise Life' textbook. I used 'Wise Life' textbook-with the plant names-and another textbook without the plant names separately on two second grade classes at Dongsu Elementary School, in Inchon, and gave out the survey on the plant names to the classes. Also I asked about printing plant names on the textbook to teachers experienced in teaching 'Wise Life'. To sum up the students' reaction- First. 75.85% of the with-name class and 34.77% of the without-name class knew the plant names. Girls in knew more names in the with-name class, on the other hand boys knew more names in the without-name class. Second, students in the with-name class knew names in the order of golden bell, azalea, gingko, and morning glory. Students in the without-name class knew names in the order of morning glory, dandelion. and pumpkin. Third, on the question, list as many plant name as you know, with-name class knew 8.8 names per person, without-name class 6.4 names per person. 84.54% of the plant names listed of with-name class and 22.08% of without-name class were listed in the 'Wise Life' textbook. Fourth, 94.44% with-name class students and 48.64% without-name class learned plant names through the 'Wise Life' textbook, To sum up the teachers' reaction First, 73.33% of the teachers did not instruct students with the plant names on the 'Wise Life' textbook, 20% did. Second, 66.66% made the students write the plant names under the pictures, 16.66% just mentioned it and did not made the students write under the pictures. 54.54% of the teachers who didri t instruct names used the pictures for motivation, 27.27% wasn't even interested in the pictures. Third, on the question, should textbook put names under the pictures through the 7th Education Program, 80% answered yes and 10% answered no. Above result shows that involuntary contact on plant names motivated the students and there were less misconception. And I've come to a conclusion that changing the textbook to print plant names is better for the teaching-learning process.

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