• Title/Summary/Keyword: Control experiment

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Euglena의 첨가가 산란계의 생산성 및 계란의 품질과 지방산 조성에 미치는 영향

  • 최선우;백인기
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2001년도 제18차 정기총회 및 학술발표 PROCEEDINGS
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    • pp.56-57
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    • 2001
  • In Experiment 1, two hundred eighty 32wks old ISA brown layers were assigned to seven dietary treatments for 4weeks. Each treatment was consisted of 4 replications with 10 birds per replication. Control diet was formulated 10%CP 2,750KcalME/kg. Euglena bleached(DHA enriched) at the level of 0.5, 1.0, 2.0% in the diet. In Experiment 2, three hundred 84wks old ISA brown layers were assigned to seven dietary treatments: T1; Control, T2; T1 + Euglena bleached(DHA enriched)0.5%, T3; T1 + Euglena gracilis(DHA enriched)0.5%, T4; T1 + Euglena gracilis(DHA enriched)1.0%, T5; T1+Euglena gracilis(DHA enriched)2.0%. In Experiment 1, 2.0% Euglena bleached treatment showed highest DHA level in Egg yolk(P<0.05). In Experiment 2, 0.5% Euglena bleached treatment showed highest DHA level in Egg yolk(P<0.05).

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The experimental study on the influence of chamber music teaching on the mental health of college students in music universities

  • Wu, Tianyi
    • International Journal of Advanced Culture Technology
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    • 제10권4호
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    • pp.277-285
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    • 2022
  • Purpose of the study To study the effects of teaching chamber music courses on the mental health of college students in music schools. The key to the results is as follows. There was a significant difference in the total level of mental health between the experimental and control classes after the experiment. The total level of mental health of male and female college students in the experimental class had significant differences after the experiment, respectively. There was no significant difference in the ten factors of scl-90 in the control class before and after the experiment, while there was a significant difference. in the ten factors of scl-90 in the experimental class before and after the experiment. The experimental teaching of chamber music courses improves the mental health level of female college students better than male college students. We have come to understand Teaching chamber music courses can significantly improve the mental health of college students in music schools.

다구찌 기법과 요인실험의 실험 데이터의 산포 크기에 따라 결과 변화 고찰 (Study on the Result Changes with the Size of the Variance in Taguchi Method and Factor Experimental)

  • 이상복
    • 품질경영학회지
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    • 제41권1호
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    • pp.119-134
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    • 2013
  • Purpose: The purpose of this paper is to show whether the results are changed with respect to the variance of the data, by analysis of data obtained from the Taguchi experimental techniques and general experiment. Because which cannot be prove by mathematical Formula, through experimental examples will show. Methods: Taguchi experiments were carried out with paper Helicopter experiment. Experimental Data are obtained by special designed Drop Test Equipment. While Experimental value arbitrarily changed, we looked at how Significant control Factor of Taguchi Methods and Factor experiments are changed. This process cannot be expressed as a Mathematical formula, but showed as a numerical example. Results: Saw significant changes in the factors when data is outside a certain range of the experimental data. By Test of Equivalence Variance, Experiment data is verified reliability. To find the Control Factor, Taguchi Method is better than the general experiment. Conclusion: We know that a Significant Factor is changed with the range of Variance of Experiment Data. The value of this paper is verified change process with Numerical Data obtained Experiment.

Histomorphometric Study of Implants Initially Stabilized through Bone Graft Packing into the Osteotomy before Implant Placement in Case of Wide Defects

  • Lee, Wang-Jae;Hong, Ki-Seok
    • Journal of Korean Dental Science
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    • 제4권2호
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    • pp.67-72
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    • 2011
  • Purpose: This study sought to evaluate the effects of bone graft wedging on the initial stability of implants in bone sites of unfavorable quality. Materials and Methods: Three male beagle dogs were used in this study. Osteotomies were performed with parallel drills (${\O}4.1{\times}10mm$), and fixtures (${\O}3.3{\times}8mm$) were placed. The control group was given implants without bone graft. Experiment group A was given implants with minimal initial stability using autobone grafts, whereas experiment group B was given xenografts. Groups were also divided by healing times at 4, 8, and 12 weeks. Results: All implants in the control group failed to osseointegrate. On the other hand, all implants in the experiment groups were clinically well-maintained during the entire experiment period. After 4, 8, and 12 weeks, bone-to-implant contact (BIC) ratio and implant stability quotient (ISQ) increased in the experiment groups. The differences between experiment groups A and B were not statistically significant, however. Conclusion: In unfavorable bone regions for dental implants, bone graft packing into the osteotomy prior to implant placement secured minimal initial stability and showed reasonable BIC ratios and ISQ values throughout the study period.

생균제의 급여가 육계의 생산성과 장내 미생물의 변화에 미치는 영향 (Effect of Feeding Probiotics on Performance and Intestinal Microflora of Broiler Chicks)

  • 류경선;박홍석
    • 한국가금학회지
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    • 제25권1호
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    • pp.31-37
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    • 1998
  • Two experiment were conducted to evaluate the feeding value of probiotics for the broiler chicks. Basal diets based on corn and soybean meal with no supplemental probiotics contained 21% dietary crude protein for the first 3 weeks and 19% for the rest of two weeks. In experiment 1, 0.2 % probiotics containing 2X 10 6 cfu /ml of Saccharomyces cerevisiae(S), Clostridium butyricum(C), Lactobacillus acidophilus(L), Bacillus polyfermenticus(B) were respectively supplemented to control groups. Two hundred day-olo chicks were randomly assigned to five treatments which had four replicates of 10 chicks each per treatment. Weight gain, feed consurnption, feed conversion ratio (FCR) were weekly measured for 5 weeks. The number of intestinal microflora was examined at the end of experiment. In experiment 1, Weight gain and feed intake of chicks fed probiotics exhibited a significant response compared to those of control for the first three weeks(P<0.01). Weight gain of S or C treatments was higher than that of control for the rest of two weeks, whereas it was significantly lower in L and B treatments than S or C treatments (P<0.01). Chicks fed S or C was significantly increased weight gain(P <0.05) compared to that of control at five weeks of age. FCR of C treatment seemed to improve relative to other supplemental probiotics groups, but was not significantly different. The number of intestinal anaerobes and Lactobacillus in large intestine of chicks fed probiotics supplements was significantly decreased compared to control groups(P<0.01). In experiment 2, there were six treatments: Ti, control; T2, 0.2%S; T3, 0.2%S + 0.2%C; T4, 0.2%S + 0.2%L; T5, 0.2%S + 0.2%B; T6, 0.2%S + 0.1%C + o.i%L + 0.1%B. Control diet based on corn soybean meal contained 21% CP and 3,2OOca1 /g ME with no probiotics. There were four replicates of 10 chicks each per treatment. Weight gain of chicks fed probiotics tended to increase compared to control groups, but were not significantly different between them. FCR was also improved in probiotics treatments. However, there were no significant differences between probiotics supplementation and control groups. The results of these experiments indicated that dietary supplemental probiotics improved weight gain, feed efficiency for the first three weeks of young broiler chicks, whereas supplementation of C, L, B combined probiotics to young broiler chicks was not superior to those of single or two probiotics.

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중학교 가정과 교육 의복재료 단원을 위한 실물 교육자료 개발 및 적용 (Development and Application of Swatch Materials for Clothing and Textiles Education in Middle School)

  • 김지선;홍경화
    • 한국가정과교육학회지
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    • 제26권1호
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    • pp.55-68
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    • 2014
  • 본 연구는 중학교 기술 가정교과 의복재료 단원의 수업에서 적용할 수 있는 의복재료 실물 교육자료집과 지도안을 개발함으로써 의복재료 수업 시 학습자의 의복재료에 대한 흥미와 이해를 높일 수 있는 교수 학습매체를 개발하는데 목적을 두었다. 이를 위해 중학생 수준의 의복재료 실물 교육자료집과 학습지, 지도안을 개발하여 실제 수업에 적용하고 그 효과를 분석하였다. 수업 적용은 실물 교육자료집을 활용하여 수업한 실험집단과 의복재료 실물 교육자료집을 활용하지 않고 수업한 통제집단의 수업에 대한 학습흥미도, 학습수용태도, 학업성취도를 비교 분석하였다. 본 연구 결과는 다음과 같다. 첫째, 의복재료 실물 교육자료집을 활용한 실험집단이 의복재료 실물 교육자료집을 활용하지 않은 통제집단보다 학습흥미도가 높았다. 둘째, 의복재료 실물 교육자료집을 활용한 실험집단이 의복재료 실물 교육자료집을 활용하지 않은 통제집단보다 학습수용태도가 높았다. 셋째, 의복재료 실물 교육자료집을 활용한 실험집단이 의복재료 실물 교육자료집을 활용하지 않은 통제집단보다 학업성취도가 높았다.

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The Effect of Automatic Environmental Control by Image Analysis System on the Performance of Pigs in Different Seasons

  • Chang, D.I.;Park, C.S.;Lee, H.S.;Lee, B.D.;Chang, H.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권5호
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    • pp.681-685
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    • 2000
  • A computer software was developed in our laboratory to automatically control the pigs environment by the image analysis system (IAS), which monitors and analyzes the pig's behavior and feeds the results back to the computer hardware. Three feeding trials were conducted with growing pigs ($L{\times}Y$) to test the effectiveness of the IAS under various seasons. In all three trials, the open-sided conventional pens with half-slatted floor were used as controls; for the IAS treatment, fully-slatted floors were used in the windowless pens. Experiment 1 was conducted in the winter for 30 d with 24 growing pigs. There were two treatments (Conventional vs. IAS), and three pens (replicates) per treatment. During the growing period, the feed efficiency was significantly (p<0.05) improved by the IAS. In addition, the pigs reared under the IAS during the growing period displayed better growth rate during the finishing period than did the pigs reared under the conventional conditions. Experiment 2 was conducted in the summer for 30 d with 24 growing pigs. The experimental design was the same as Experiment 1. During the finishing period, all the pigs were kept in conventional open-sided pens until their market weights to evaluate their carcass characteristics. During the growing period, the growth rate and feed efficiency of the pigs in the IAS was better than those of the control pigs. In addition, various carcass characteristics were significantly improved by the IAS rearing during the growing period. Experiment 3 was conducted with 30 growing pigs for 30 d in the spring. The experimental design was the same as Experiment 1. No difference was found in growing performance between the control and IAS pigs. It could be concluded that the IAS is effective in providing optimum conditions for the growing pigs in summer and winter seasons. In addition, providing an optimum environment during the growing period results in improved growth rate, feed efficiency, and carcass qualities for the finishing pigs.

심박변이도를 통한 침자극과 스트레스의 상관관계 연구 (A Study on the Relationship with Acupuncture Stimulation and Stress Using Heart Rate Variability)

  • 이승기;박경모;최우진
    • 동의신경정신과학회지
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    • 제15권1호
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    • pp.197-209
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    • 2004
  • Objectives : The purpose of this case-control research was to investigate the effects of acupuncture stimulation on autonomic nervous system for patients with HRV and to find out relationship with anti-stress effects. Methods : The study group consists of 24 patients with self-recognition of stress as the case group, and 20 normal person as the control group by similar age. We measured HRV of case and control groups before acupuncture stimulation, prick acupuncture in Hegu(LI4), Taichong(Liv3), Shenme(H7), Neiguan(P6), Zusanli(S36). After treating for 20 minutes, measurement values of HRV and PSV were compared for pre-acupuncture and post-acupuncture. Results : 1. LF norm, HF norm, LF/HF between the case and control groups were significant different in HRV before acupuncture stimulation in the 1st experiment. 2. HRT, SDNN, SDSD, LF norm, HF norm, and LF/HF of the case group were significant different in HRV after acupuncture stimulation in the 1st experiment. HRT of the case group was significantly different in HRV after acupuncture stimulation in the 1st experiment. 3. LF norm, HF norm, LF/HF of the case group were significant different between the 1st and 2nd experiment in HRV before acupuncture stimulation. 4. LF norm, HF norm, and LF/HF were significant different between the 1st and 2nd experiment in HRV of patients whose symptoms improved. But HRV of patients whose symptoms unimproved didn't show significant difference. Conclusion : The results suggest that acupuncture stimulation is associated with changed activity in the sympathetic and parasympathetic nervous system. Measurement values of HRV is suitable to estimate the activity of automatic nervous system.

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다리의 지방감소를 위한 보행형태 변화에 관한 연구 (Gait Type Change for Decrease of Leg's Fatness)

  • 배성수;이해덕;원중영;윤창구;최흥식
    • 대한물리치료과학회지
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    • 제4권1호
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    • pp.303-313
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    • 1997
  • We developed the shoes which is specially designed to decrease the leg's fatness during walking and to improve the body figure. The analysis of the gait cycle and the shoes gave changes at the swing phase. We examined the results to 30 girl students of Yeong Dong Junior College for 5 weeks from 27, October to 29, Nobember in 1996, and the results were also obtained in decrease of their thigh's size in circumference. The results of the analysis are as followings; 1) After experiment circumference of the right thigh was decreased 0.04cm in noncontrol group and significantly decreased 1.04 cm in control group(p<0.01). 2) After experiment circumference of the left thigh was decreased 0.27 cm in noncontrol group and significantly decreased 1.17cm in control group(p<0.01). 3) After experiment circumference of the right calf of the leg decreased 0.09 cm in noncontrol group and significantly decreased 0.54 cm in control group(p<0.01). 4) After experiment circumference of the left calf of the leg decreased 0.21 cm in noncontrol group and significantly decreased 0.47 cm in control group. 5) After experiment body weight were not changed significantly in both group. In these results, if the people want to exercise the analysis of fat in the thigh, put on the shoes which improves the body figure and do daily work, and it will be naturally decreased the fat in thigh and they will maintain the beauty lines of the legs. There weren't any changes in the body weight while the fat of thigh in circumsference was analysed and decreased. It means that because the weight of the fat is very light, there weren't any changes in body weight.

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