이유시기가 한우 송아지의 발성빈도에 미치는 영향

이규호,유정원,김상욱,정왕용,이원현,이상락,Lee, Kyu-Ho,Yu, Jung-Won,Kim, Sang-Wook,Jung, Wang-Yong,Lee, One-Hyun,Lee, Sang-Rak 한국축산환경학회 2014 한국축산시설환경학회지 Vol.20 No.4

This study was conducted to investigate the effect of weaning period on the vocalization frequency of Hanwoo calf. Twelve Hanwoo calves were allocated into 4 groups, control (forced weaning on 90days) and treatment (weaning on 70, 90 and 120days with 5 adaptation days). After weaning, behavior and vocalization of Hanwoo calves were recorded on 3 consecutive days with closed circuit television (DTC-R5254, Digite Co., Ltd., Korea) and digital audio tape recorder (SR-900, Idamtech Co., Ltd., Korea). Vocalization frequency of Hanwoo calf were not significance difference with control and treatment group. Thus, additional studies of feed intake and body weight gain were needed to determine the weaning period of Hanwoo calves.

난용계(卵用鷄) 육성기(育成期)의 선택채식(選擇採食)에 관(關)한 연구(硏究)

이규호,이덕수,Lee, K.H.,Lee, D.S. 한국가금학회 1994 韓國家禽學會誌 Vol.21 No.1

본(本) 연구(硏究)에서는 난용계(卵用鷄) 육성기(育成期) 사료비(飼料費)를 절감(節減)할 수 있는 새로운 사양체계(飼養體系)를 개발하기 위한 기초자료를 얻기위하여 각종 선택채식방법(選擇採食方法)에 의해 육성기의 사료(飼料) 및 영양소(營養素) 섭취(攝取) 형태(形態)를 조사하였다. 선택 채식시험을 위하여 옥수수사료, 대두박사료, 밀기울사료 그리고 대두박+어분사료를 각각 만든 후 배합사료(配合飼料)를 급여하는 대조구(對照區)(C)와 옥수수-대두박사료 선택채식구($T_1$), 옥수수-대두박-밀기울사료 선택채식구($T_2$), 옥수수-대두박+어분-밀기울사료 선택채식구($T_3$)등 4개 처리에 유색난용계(有色卵用鷄) 초생추(初生雛) 380수를 공시(供試)하여 육성기간(育成期間)(0~20주령) 동안 시험(試驗)한 결과(結果)는 다음과 같다. 1. 선택채식구(選擇採食區)들의 육성기간중 평균체중(平均體重)은 대조구(對照區)에 비해 억제(抑制)되었으며 특히 성장초기에 현저히 억제(抑制)되어 대조구(對照區) 체중(體重)(100%) 대비 6주령에 70%, 14주령에 81%, 20주령에 88%로 억제(抑制)되었다. 2. 육성기간(育成期間)중 사료섭취량(飼料攝取量)은 대조구(對照區)(100%)에 비해 $T_1$은 86%로 적었으나 선택채식사료(選擇採食飼料) 중에 밀기울이 포함된 $T_2$(106%)와 $T_3$(112%)는 대조구(對照區)보다 오히려 많았다. 3. 선택채식구(選擇採食區)들의 육성기간(育成期間)중 에너지와 단백질(蛋白質) 섭취량(攝取量)은 선택채식방법(選擇採食方法)에 따라 차이가 있었으나 평균적으로 대조구(對照區)에 비해 각각 11%와 9% 정도 적었다. 4. 육성기간중 섭취(攝取)된 사료(飼料)의 대사에너지 수준(水準)은 모든 처리에서 성장기별(成長期別) 차이(差異)는 없었으며 대조구(對照區)(C)가 2,900 kcal/kg인데 비해 옥수수-대두박사료 선택채식구(選擇採食區)인 $T_1$은 3,200 kcal/kg정도로 매우 높았으며 선택채식사료중에 밀기울이 포함된 $T_2$와 $T_3$는 2,300 kcal/kg내외로 극히 낮았다. 한편 섭취된 사료의 단백질수준(蛋白質水準)은 대조구(對照區)가 2~6주령에 18%, 6~14주령에 15%, 14~20주령에 12%였는데 비해 선택채식구(選擇採食區)들 ($T_1$, $T_2$ 및 $T_3$)은 모두 선택채식(選擇採食) 방법(方法)이나 성장기에 관계없이 12~13%정도로 매우 낮았다. 결론적(結論的)으로 난용계(卵用鷄) 육성기(育成期)에는 육성기(育成期) 체중(體重)을 효과적(效果的)으로 조절(調節)하고 사료비(飼料費)를 절감(節減)할 수 있는 사료체계(飼料體系)의 근본적인 개선(改善)이 필요하다고 생각된다. A dietary self-selection study was carried out to get information for the improvement of feeding systems of egg-type growing pullets. Corn diet, soybean meal diet, wheat bran diet and soybean meal+fish meal diet were individually prepared for self-selection regime and 380 day-old chicks of a brown egg strain were offered either a control grower diet(C) or one of the 3 self-selection regime consisted of corn-soybean meal diet ($T_1$), corn-soybean meal-wheat bran diet($T_2$) and corn-soybean meal+fishmeal-wheat bran diet($T_3$) during 20 weeks of the growing period. Compared with pullets fed control diet(C), those fed the self-selection diets($T_1$, $T_2$ and $T_3$) were smaller in body weight at 20 weeks of age by 12% and consumed less energy and protein by 11% and 9%, respectively. Calculated metabolizable energy levels of feed consumed during the growing period were about 3,200 kcal/kg in $T_1$ and 2,300 kcal/kg in $T_2$ and $T_3$ and dietary protein levels were about 12~13% in all self-selection diets ($T_1$, $T_2$ and $T_3$) regardless of pullet age. The results of the study suggest that the conventional feeding system of egg-type growing pullets should be improved in order to control the body weight effectively and to reduce the cost of grower feed.

출연(연) 30년, 그 역할과 비전

이규호,Lee, Gyu-Ho 한국과학기술단체총연합회 2003 과학과 기술 Vol.36 No.11

육성기 사료의 양적 제한급여가 육용종계의 발육 및 산란성에 미치는 영향

이규호,김덕교 ( K . H . Lee,D . K . Kim ) 한국축산학회 1974 한국축산학회지 Vol.16 No.4

The effect of feed restriction during the rearing period on sexual maturity, performance in the laying house and economy was studied using 305 birds of broiler breeder pullet. During the rearing period(7∼24 weeks of age) feed was offered 80%, 75%, 70%, and 65% of feed consumption of full fed group. From 25 weeks of age all groups were fed ad libitum The results obtained are summarized as follows: 1. Body weight of 65% restricted group at 24 weeks of age was 73% of that of ad libitum group. At 45 weeks of age it was 85% of that of full fed group and not yet recovered completely. 2. Feed consumption of restricted groups from 25 to 50 weeks of age was somewhat more that of control group. However, there was no significant difference. 3. The degree of sexual maturity examined by weight of reproductive organ, length of fallopian tube and weight of comb and wattle at 21 weeks of age was extremely delayed with groups of feed restriction. The skeleton, however, almost equally developed between ad libitum and restricted groups. 4. The first egg production (days to 50% egg production) was delayed 1∼2 weeks with the restricted feeding. 5. Hen-day egg production was improved as the degree of restriction became intensive and 65% restricted group had the best result. The production of egg over 53g(hatchable egg) showed the same tendency. 6. Egg size was not affected by treatment. 7. Feed cost required for lkg egg production was the highest with the ad libitunz group and was decreased as the degree of feed restriction increased. The same tendency was obtained for the feed cost for 1 hatchable egg (over53g) Summarizing all of the da-ta, it was suggested that in broiler breeder the feed restriction should be below 65% of ad libitum group during the rearing period(7∼24 weeks of age), and the body weight at 24 weeks of age should be kept at the level of less than 70% of the control in order to get better performance during the laying period.

HARP의 Data Coherency 유지에 관한 연구

이규호,Lee, Gyu-Ho 한국전자통신연구원 1988 전자통신 Vol.10 No.3

HARP(High-performance Architecture for Risc-type Processor)는 한국전자통신연구소에서 개발하고 있는 고유 모델의 RISC형 32비트 CPU이다. HACAM은 HARP의 캐쉬 메모리 및 MMU를 1칩의 VLSI로 구현한 것으로서 virtual cache 구조를 갖는다. Virtual cache 시스팀에서는 synonym문제가 수반되는데, 이 문제는 multitasking을 하는 single CPU 시스팀에서도 발생하지만, multiprocessor 시스팀에서는 데이터 coherency 문제와 함께 해결하여야 되기 때문에 더욱 어렵다. 본 논문에서는 HACAM이 virtual cache 구조로 구현하게 된 배경 및 이의 타당성을 논하였고, 아울러 virtual cache 구조를 갖기 때문에 발생하는 synonym 문제를 설명하고, 이의 해결 방안을 제시하였다.

IP기반 차세대 통합네트워크를 위한 시험기 시스템 연구

이규호,성길영,Lee, Kyou-Ho,Sung, Kil-Young 한국정보통신학회 2008 한국정보통신학회논문지 Vol.12 No.11

본 논문은 차세대 네트워크로 진화과정에서 IP기반의 실시간 서비스를 통합하는 차세대 통합네트워크를 위한 시험기시스템에 관한 연구내용과 결과를 제시한 것이다. 호 제어처리 및 데이터전달 체계의 연동을 위한 차세대통합 네트워크의 각 구성요소들의 프로토콜 기능과 처리능력의 시험기시스템 설계를 위한 효과적인 방안과 그 타당성을 논의한다. 그리고 시스템에 요구되는 기능별 블록을 추출하고, 각 기능블록간 동작흐름을 포함하는 상위 수준의 시스템 구조를 제안하고, 이에 기반한 시스템과 세부기능들의 설치 및 구현 결과를 제시한다. This paper studies a system design of testifying next generation convergence network. Next generation convergence network includes such elements as not only various gateway systems interworking with conventional PSTN(Public Switched Telephone Network) but also various protocols communicating between gateway systems and softswitches or gateway controllers. Discussed are an effective system solution to verify functionalities and performance of protocols professing. From such discussion, the study identifies functional blocks and operational flows required for establishing a test system, and then with a basis of these proposes a system architecture. Finally this paper presents system design results and its implemented functional details.

Is Intratympanic Dexamathasone Injection Effectivefor the Treatment of Idiopathic SuddenSensorineural Hearing Loss?

이규호,류성훈,Hyung Min Lee,박수경,김형종,장지원 대한청각학회 2015 Journal of Audiology & Otology Vol.19 No.3

Background and Objectives: The purpose of this study is to identify the effectiveness of intratympanic (IT) steroids when used as an initial therapy in sudden sensorineural hearing loss (SSNHL), and when it is used as a salvage therapy in a refractory SSNHL. Subjects and Methods: This retrospective study included 122 patients with SSNHL. First, patients were divided into three groups according to the initial treatment; IT steroid, systemic steroid and combined (systemic and IT steroid) groups. Second, patients were divided into two groups according to the salvage treatment in a refractory SSNHL; IT steroid and the control (non IT group). Fifty eight patients who did not respond to initial therapy were included in the second analysis. Hearing was assessed immediately before the treatment and 2 weeks, 4 weeks and 3 months after the treatments. Hearing recovery was defined as an improvement of >15 dB and the final hearing of 25-45 dB in the audiogram. Results: When we analyzed the hearing recovery in initial treatment, the comparison of audiogram among three groups did not result in significantly different outcomes. There were no differences in the recovery rate in 2 and 4 weeks throughout all the frequencies. Also, the analysis of the salvage treatment demonstrated that neither IT steroid group nor control group was significantly effective in treating the refractory SSNHL. Conclusions: The results suggest that initial treatment of SSNHL with IT steroid alone is as effective as systemic steroid alone or a combination therapy. Also, salvage IT steroids for refractory SSNHL did not have any additional beneficial effects Background and Objectives: The purpose of this study is to identify the effectiveness of intratympanic (IT) steroids when used as an initial therapy in sudden sensorineural hearing loss (SSNHL), and when it is used as a salvage therapy in a refractory SSNHL. Subjects and Methods: This retrospective study included 122 patients with SSNHL. First, patients were divided into three groups according to the initial treatment; IT steroid, systemic steroid and combined (systemic and IT steroid) groups. Second, patients were divided into two groups according to the salvage treatment in a refractory SSNHL; IT steroid and the control (non IT group). Fifty eight patients who did not respond to initial therapy were included in the second analysis. Hearing was assessed immediately before the treatment and 2 weeks, 4 weeks and 3 months after the treatments. Hearing recovery was defined as an improvement of >15 dB and the final hearing of 25-45 dB in the audiogram. Results: When we analyzed the hearing recovery in initial treatment, the comparison of audiogram among three groups did not result in significantly different outcomes. There were no differences in the recovery rate in 2 and 4 weeks throughout all the frequencies. Also, the analysis of the salvage treatment demonstrated that neither IT steroid group nor control group was significantly effective in treating the refractory SSNHL. Conclusions: The results suggest that initial treatment of SSNHL with IT steroid alone is as effective as systemic steroid alone or a combination therapy. Also, salvage IT steroids for refractory SSNHL did not have any additional beneficial effects

Preparation of poly(vinyl alcohol)-coated Composite Nanofiltration Membranes on Various Support Membranes

이규호,김인철,Lee Kew-Ho,Kim In-Chul The Membrane Society of Korea 2005 멤브레인 Vol.15 No.1

Poly(vinyl alcohol) (PVA)이 폴리술폰 한외여과 막, 술폰화된 폴리에테르술폰, 폴리아미드 나노 막 위에 코팅된 나노 복합막을 가압법에 의해서 제조되었다. PVA는 글루터알데하이드 수용액으로 가교되었다. 모든 지지층위에 PVA 희박용액이 성공적으로 코팅되어 나노복합막이 제조되었다. 지지막 위의 친수화도가 높아짐에 따라 수투과 유량이 증가하였다. 특히 음하전을 띠는 폴리아미드 나노 복합막의 제타전위는 PVA로 코팅함으로서 감소되었다. 막 오염 실험은 양이온을 띠는 계면활성제, 휴민산, 휴민산과 칼슘이온 복합체 및 bovine serum albumin을 사용하여 실행하였다. PVA로 코팅되지 않은 폴리아미드 나노복합막은 각각의 오염물질에 의해서 심하게 오염되었다. 휴민산과 단백질에 의한 오염은 오염물질의 등전점에서 가장 심하게 발생하였다. 휴민산에 이가 양이온을 첨가함으로서 오염이 심각하게 일어났다. PVA 수용액으로 폴리아미드 나노 복합막을 코팅함으로서 막 오염이 감소되었다. PVA로 코팅된 폴리아미드 나노 복합막은 산, 염기용액에 대해 저항성을 보였다. The poly(vinyl alcohol) (PVA)-based thin film composite nanofiltration (NF) membranes were prepared by coating polysulfone ultrafiltration membranes, sulfonated polyethersulfone and polyamide NF membranes with aqueous PVA solution by a pressurizing method. The PVA was cross-linked with aqueous glutaraldehyde solution. The NF membranes coated with a very low concentration of PVA on all the support membranes was successfully prepared. With increasing the hydrophilicity of the support membranes, the water flux increased. Especially, ζ-potential of negatively charged polyamide NF membrane was reduced by coating the membrane with PVA. A fouling experiment was carried out with positively charged surfactant, humic acid, complex of humic acid and calcium ion and bovine serum albumin. A non-coated polyamide NF membrane was significantly fouled by various foulants. The fouling process when using humic acid and protein occurred at the isoelectric point. There was severe fouling when using humic acid and adding bivalent cations. By coating the polyamide NF membrane with aqueous PVA solution, fouling was reduced. The polyamide NF membrane coated with PVA was resistant to the acidic and basic solution.

차세대 통합네트워크를 위한 MEGACO 프로토콜 호 처리 시험기 연구

이규호,성길영,Lee, Kyou-Ho,Sung, Kil-Young 한국정보통신학회 2007 한국정보통신학회논문지 Vol.11 No.12

This paper discusses a tester of functionality and call processing performance, based on the MEGACO/H.248 protocol that both IETF and ITU-T recommend as a media gateway control protocol, of both a media gateway controller and an access gateway which constitute a next generation convergence network. Effective methods, a functional architecture and implementation for such testification are provided. Especially included are not only a virtual emulation function of analog subscriber lines connecting to an access gateway, but also a tester emulated as a counter system of the protocol for the testifying a media gateway controller and an access gateway system. 본 논문은 IETF와 ITU-T에서 공동으로 권고하는 미디어 게이트웨이 제어 프로토콜인 MEGACO/H.248 기반의 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이의 호 처리 성능 및 기능시험 연구에 관한 내용이다. 기존 PSTN망에서 서비스되고 있는 음성 트래픽을 IP망으로 통합하는 차세대 통합네트워크의 핵심적인 구성요소로서 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이의 호 처리 성능 및 기능을 시험하기 위한 효과적인 방법 및 시험 시스템 구조에 관한 연구로, 특히 시험 환경 구축을 위해 액세스 게이트웨이에 접속되는 다수의 아날로그 라인들에 대한 가상 에뮬레이션 기능과, 미디어 게이트웨이 컨트롤러와 액세스 게이트웨이 시험을 위해, 프로토콜의 상대역할을 에뮬레이션하는 시험기로 동작하는 효과적인 방안과 그 타당성을 논의한다.

육용 종계의 영양소 요구량에 관한 연구 2 . 육용 종계의 단백질 요구량에 관한 연구

이규호,한인규,이상진,강태홍,김강식 ( K . H . Lee,I . K . Han,S . J . Lee,T . H . Kang,K . S . Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.3

In order to calculate the theoretical daily nutrient requirements for broiler breeder hens in relation to the weeks of age, estimates were made of daily needs for metabolizable energy, protein and amino acids using various prediction equations previously suggested by other researchers and compared each other and with the results of feeding trials. These were based on the average performance of hens on the production model calculated from the results of current studies by the author.