국내 Holstein 종의 유생산에 미치는 환경효과 보정계수 추정

고문석(M . S . Ko),이학교(H . K . Lee),신영수(Y . S . Sin),조윤연(Y . Y . Cho),김내수(N . S . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.11

This study was carried out to estimate the coefficients for the adjustment of environmental effects on milk yield. The 2,438 lactation records of Holstein Cows which had raised at National Animal Breeding Institute from (1969 to 1985 were used in this analysis. The parities, the season within parity and the month of age within parity at parturition of cows were included to the environmental factors for the adjustment. 1. The parity, season and year showed highly significant(p (0.01) effects on milk yield. 2. The total milk yield of the season Ⅰ (Nov.-Apr.) appeared about 300㎏ higher than those of the season Ⅱ (May.-Oct.) within each parity. The coefficients for the season`s were estimated on the basis of the season Ⅰ . The factors for season 11 were 1.09, 1.07 and 1.04, in 1st, 2nd and 3rd to 4th parity, respectively. 3. The adjustment factors on different parities were 1.00, 0.932 and 0.817 on the basis of the first parity and 1.147, 1.069 and 1.00 on the basis of the third and fourth parity. 4. The linear regression of milk yield for ages at calving were estimated Y₁= 2,272.6 + 72.7 X₁,Y₂= 3,701.0 + 23.5 X₂, Y₃= 3,827.3 + 19.3 X₃, in 1st, 2nd and 3rd and 4th parity respectively. The adjustment factors were made on the basis of 26 month for the first parity and it ranges from 1,024 at 24 month to 0.85 at 36 month. The factors for 2nd parity which ranged from 1.03 at 34 month to 0.93 at 54 month were based on 40 month and those of third and fourth parity which ranged from 1.05 at 46 month to 0.93 at 77 month were based on 59month. 5. The milk yield adjusted by proposed factors were estimated 5,011㎏ for the first parity, 5,087㎏ for the second and 5,018㎏ for the third and fourth. On the other hand when same data were adjusted by DHIA factors the milk yield were estimated 5,384㎏, 5,167㎏ and 5,072㎏ respectively. This showed that the proposed factors adjusted raw data more uniformly among parities than those of DHIA factors.

양파 재배 생력기계화 정식기계 개발

민영봉,문성동,하종규,문경규,김도완,박중춘,정한택,제성룡,우철노,강환규,신광식,김성환,성경현,한규정,서전규,하인종 경상대학교 시설원예연구소 1999 施設園藝硏究 Vol.6 No.-

乳牛에 있어서 産乳能力에 影響을 미치는 空始期效果에 관한 硏究

池卨夏,申英秀,李學敎,高文石,吳鳳國,孫始煥 서울대학교농과대학농업개발연구소 1988 서울대농학연구지 Vol.13 No.2

This study was carried out to estimate relationships between days open and milk yield at 305 day and according to season of freshing. Data used for this study included a total of 3,266 sets of 305day lactation records of Holstein cows tested milk yield performance in National Animal Breeding Institute from 1971 to 1987. Parity, year at calving and days open showed highly significant (p<0.01) effects on actual and age-corrected milk yields in the first season of refreshing. Days open affected on age-corrected milk yield significantly (p<0.05) and parity and year at calving also effected significanty (p<0.01) on milk record in the second season of refreshing. As days open increased from 20 to 200days, actual and age-corrected milk yield increased from 4,998kg and 5,415kg to 5,290kg and 5,702kg in the frist season, respectively. In the second season, actual and age-corrected milk yields were also affected by period of days open. (Key words : Days open, milk yield)

여대생의 월경불편감 정도와 식습관에 관한 연구

김선영,김준희,김찬영,박정우,신선미,안선영,이민혜,이정아,임미선,전현정 이화여자대학교 간호과학대학 2010 이화간호학회지 Vol.- No.44

Purpose: This study was done to identify the correlation between the menstrual discomforts and dietary habits of young university women in order to provide the basic needs and make improvements on the quality of life for women. Method: The Menstrual Discomfort Questionnaire (MDQ) and Nutrition Diagnosis for Health were the tools used. The participants were 279 female university students in Seoul. Result: Factors related to MDQ were found to be the VAS scores (r=.361, p=.002), menstrual discomfort according to stress consciousness (F=3.756, p=.025), experiences of taking medicine (F= 4.130 p= .043), the types of residential forms (F=6.197, p=.000), recognition of menstrual period (F=5.466, p=.020), eating breakfast, the frequency of carbohydrates intake (F=5.28, p=.006), the frequency of vegetable intake, seaweed and mushrooms (F=4.98, p=.008). As a result of the study, there is a correlation between menstrual discomforts of female university students and dietary habits. Conclusion: In order to decrease the discomforts of the menstrual cycle that usually includes pain and bloating a well-balanced dietary habit is needed. A balance diet includes grain, vegetables, and mushroom should be taken in normal meals. We should confine the dietary habits that form severe menstrual discomfort in people and give them recommendations for ideal dietary habits that would ideally decrease the pain caused by menstruation. Therefore it is necessary that the education program and nursing mediation should be developed as a program that would aid in decreasing menstrual discomforts. In future studies, a similar study with at a larger scale should be conducted with more recommended specified nutritional assessment.

Kinase activity-independent suppression of p73α by AMP-activated kinase α (AMPKα)

Lee, Y-G,Lee, S-W,Sin, H-S,Kim, E-J,Um, S-J Macmillan Publishers Limited 2009 Oncogene Vol.28 No.7

Although p73α induces many of the same cellular events as p53, it is structurally distinct from p53 in that it possesses a unique COOH-terminal domain. To dissect the function of this domain, we performed yeast two-hybrid screening of a HeLa cDNA library using residues 552–636 of p73α as bait. Among the clones that showed a specific interaction with p73α was AMP-activated protein kinase α (AMPKα). Additional yeast two-hybrid assays indicated that the βγ-binding domain of AMPKα is critical for the interaction with p73α. The interaction was further confirmed in vitro by glutathione S-transferase pull-down, and in vivo by immunoprecipitation and immunofluorescence microscopy. Transient coexpression of AMPKα resulted in downregulation of the effect of p73α, but not of p53, on various p53-responsive promoters. Chromatin immunoprecipitation indicated p73α-dependent recruitment of AMPKα to the p21WAF1 promoter. Treatment with 5-aminoimidazole-4-carboxamide ribonucleotide, an agonist of AMPKα, and expression of dominant-negative versions of AMPKα revealed that the repression of p73α was independent of AMPKα kinase activity. In addition, cisplatin-induced growth repression was impaired when AMPKα was overexpressed. Upon the knock down of AMPKα by siRNA, the induction of p21WAF1 by p73α was significantly increased. Taken together, these data indicate that AMPKα specifically regulates p73α by a direct interaction without affecting its phosphorylation status. From these data, we speculate that AMPKα may provide a molecular clue to understand the repressive role of the C-terminus of p73α in transcription and DNA damage response.Oncogene (2009) 28, 1040–1052; doi:10.1038/onc.2008.452; published online 15 December 2008

한우에 있어서 Rosette Inhibition Test 에 의한 조기 임신인자(Early Pregnancy Factor)의 검출

성환후,백광수,고응규,신기준,박용윤,신원집 한국축산학회 1997 한국축산학회지 Vol.39 No.4

Early pregnancy factor(EPF) is one of the pregnancy associated proteins, and it is detected in senun of many pregnant animals shortly after fertilization. The present study was conducted to establish a system of early pregnancy by EPF detection in Hanwoo cows. The EPF activity was measured by the rosette inhibition test on day 15 after artificial insemination or non-insemination. The rate of rosette formation between Hanwoo lymphocytes and sheep red blood cells was significantly(P$lt;0.05) higher compared to that between Hanwoo lymphocytes and goat, or rabbit red blood cells. The rosette formation between lymphocytes suspension and sheep red blood cells with anti-lymphocytes was not significantly(P$lt;0.05) changed until 5∼20 min. of culture, and then decreased dramatically by 30 min. There were significant(P$lt;0.05) differences in the rosette inhibition titer(RIT) between pregnant and non-pregnant Hanwoos on day 15 after artificial insemination. The results indicate that the expression of early pregnancy factor by the rosette inhibition test might be used to diagnosis of early pregnancy in Hanwoo.

쑥분말 급여가 이유자돈의 생산성과 분의 유해가스 발생량에 미치는 영향

김영민,김재황,김삼철,이문도,신재형,고영두 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.4

This study was conducted to investigate the effect of dietary wormwood powder (Artemisia montana Pampan; WP) supplementation on growing performance and fecal nexious gas cmission in weanling pigs. One hundred and twelve pigs were alloted into four treatments and offered for 4 weeks one of the diets supplemented with 0% (control), 0.5% (0.5), 1.0% (1.0) and 2.0% (2.0) WP. Each treatments has four replicate with 7 pigs per replicate. ADG, ADFI and F/G were improved by 1.0 and 2.0 WP supplementation during 0d ~ 14d feeding. Feed intake of 1.0 WP diet was higher (P<0.05) than any other diet during 15d ~ 28d feeding. But there were no differences among the other treatments in the weight gain and feed conversion. During the whole feeding period, daily weight gain and feed intake of pigs fed 1.0 and 2.0 treatments were higher than those of pigs fed control and 0.5 diet. DM digestibility was significantly (p<0.05) higher in weanling pigs fed 0.5, 1.0 and 2.0 WP than that of the control. The protein digestibility was significantly improved in 1.0 wP treatment and the phosphorus digestibility was improved in 2.0 WP treatment. Excretion of nitrogen and phosphorus was significantly (P<0.05) decreased by 2.0 treatment than control. Emission of fecal ammonia after 48 hours storage in viny1 bag dramatically decreased by all the treatments except control. However, there was no statistical difference in fecal hydrogen sulfide emission among treatments. In conclusion, this study suggested that the dietary 1.0∼2.0 supplementation of WP can improve productivity of pigs decrease fecal NH_(3) and H_(2)S gas emission.

TMS320C31을 이용한 얼굴 검출용 하드웨어 구현

박일용,진경찬,채승표,원철호,손병기,신장규,조진호 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

The real-time pattern recognition is widely used in the image recognition or auto sentry systems to be implemented by the DSP chip which is adequate for real-time processing. The pattern recognition can be performed by two methods, i.e. the feature-based matching and template one mainly. Generally, the feature-based matching, such as DLM(dynamic linking matching), is very difficult to utilize as a software for the development of real-time processing system. So as to be possible for real-time processing is the template matching desirable. In this paper, we have proposed the image acquisition and processing system for face detection. By applying the PCA(principal component analysis), we made the template to be matched with the input image acquired by the implemented system. And then the face region could be extracted from the input image by the computations of the Euclidean distances between the template and the sub-images. The system, which is based on the TMS320C31 DSP chip, consists of the video signal A/D, D/A converter, image acquisition part, and DSP part.

복합 생균제 첨가가 육계 생산성, 유해가스 발생량 및 맹장내 균총에 미치는 영향

고영두,신재형,김삼철,김영민,박기동,김재황 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.4

This study was carried out to investigate the effect of probiotics on the performance, nutrients digcstibility, noxious gas emission and microflora population on the cecum of broilers. A total of 120 broilers, consisted of 4 treatments X 3 replicates X 10 broilers per replicated, were fed the experimental diets containing 0, 0.1, 0.3 and 0.5% probiotics for 5 weeks. Broilers fed the diets containing 0.1 and 0.3% probiotic had higher (p<0.05) body weight gain and feed conversion than those of the others from the 3rd to 4th week. Broilers fed 0.3% probiotic had higher (p<0.05) body weight gain and feed conversion than those of the other levels from the 5th to 6th week. Broilers fed the diets containing 0.1% and 0.3% probiotic had higher (p<0.05) body weight gain and feed conversion than those of the others from the 2nd to 6th week. Dry matter digestibility was significantly (p<0.05) improved with 0.3% probiotic. Emission of ammonia and sulfate hydrogen gas was significantly (p<0.05) decreased at 6th week. However, there was no (p<0.05) difference at the levels of 0, 0.1, 0.3 and 0.5% at the 4th weeks. There was an increase in the lactobacillus sp, but there was decrease in the microflora population of coliforms in the cecum of broiler with 0.1% and 0.3% probiotics. These results indicated that the compound probioties of 0.1 ~ 0.3% were effective in the body weight gain, feed conversion, nutrients digestibility, noxious gas emission and microflora population on the cecum in broilers.

디지탈 신호처리기를 사용한 산업용 로봇(SM5)의 실시간 적응제어

장영희,정동연,신행봉,한성현 慶南大學校 附設 工業技術硏究所 1998 硏究論文集 Vol.16 No.-

본 논문에서 제안되는 적응제어시스템의 구조는 기준모델적응제어의 원리를 토대로 직접 리아프노브 방법(direct Lyapunov method)을 적용하여 제어시스템의 안정성 해석 및 적응제어칙을 유도한다. 제어기의 기본구조는 극배치(pole-placement)방법에 의해 설계되는 피이드백 제어기와 역모델(inverse model)을 적용한 시변 피이드포워드 제어기 그리고 공칭작동점(nominal perating point)에 대한 적응보조신호로 구성되는 새로운 구조의 적응제어기를 설계한다. 매니플레이터의 링크 및 관성파라미터의 불확실성, 부하변동으로 인한 매니플에이터의 역학적 특성의 변화, 제어기의 실현시 수반되는 기계적 오차 및 계산시간의 지연 등의 제반 외부 조건의 병화에 대하여 능동적으로 적응할 수 있으므로써 항상 고정도의 견실한 제어성능을 유지됨을 입증함으로써 제안된 제어기의 견실성을 입증한다. 구체적인 실험은 시뮬레이션을 통해 자료를 바탕으로 직접 개발한 TMS320C31 어셈블리 S/W를 FARA SM5 SCARA 형 로보트에 적용시켜 실험 하였다. 실험 결과를 통한 성능의 신뢰성 확인은 FARA SM5 SCARA형 로보트의 기존의 제어기인 PID 제어기와 개발된 적응 제어 알고리즘의 제어성능을 비교 분석하는 방법으로 진행하였다. This paper presents a new approach to the design of adaptive control system using DSPs(TMS320C31) for robotic mampulators to achieve trajectory tracking by the joint angles. Digital signal processors are used in implementing real time adaptive control algorithms to provide an enhanced motion control for robotic manipulators. In the proposed control scheme, adaptation laws are derived from the improved Lyapunov second stability analysis method based on the adaptive model reference control theory. The adaptive controller consists of an adaptive feedforward controller, feedback controller, and PID type time-varying auxillary control elements. The proposed adaptive control scheme is simple in structure, fast in computation, and suitable for implementation of real-time control. Moreover, this scheme does not require an accurate dynamic modeling, nor values of manipulator parameters and payload. Performance of the adaptive controller is illustrated by simulation and experimental results for a SCARA robot(SM5) made in samsung electronics company in Korea.