형태별 구리 및 아연 급여가 비육돈의 생산성, 영양소 소화율, 도체 및 육질 특성에 미치는 영향

김영화,유종상,박준철,정현정,조진호,진영걸,김해진,김인철,이상진,김인호,Kim, Y.H.,Yoo, J.S.,Park, J.C.,Jung, H.J.,Cho, J.H.,Chen, Y.J.,Kim, H.J.,Kim, I.C.,Lee, S.J.,Kim, I.H. 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.1

This study investigated the effects of copper and zinc sources on growth performance, nutrient digestibility, carcass traits and meat characteristics in finishing pigs. Dietary treatments included 1) inorganic copper ($CuSO_4{\cdot}5H_2O$ 30ppm), 2) organic copper (Cu-methionine, 30 ppm), 3) inorganic zinc (ZnO, 80 ppm) and 4) organic zinc (Zn-methionine, 80 ppm). ZnO treatment improved the ADFI (average daily feed intake) compared to Cu-met and Zn-met treatments (p<0.05) during 5 weeks of treatment. However, during the entire experimental period, the ADG (average daily gain), ADFI and F:G ratio (feed conversion ratio) were not significantly different among the treatments (p>0.05). DM and N digestibility were not significantly different among the treatments after 5 weeks (p>0.05). At the end of the experiment, DM and N digestibility were decreased with Zn-met treatment relative to the other three treatments. The pH value of meat from $CuSO_4$ treated pigs was greater than Zn-met and ZnO treated pigs (p<0.05). Sensory evaluation was carried out for randomly selected (n = 16) paired loin samples. Meat color levels were increased (p<0.05) with Cu treatments compared to Zn treatments. $CuSO_4$ decreased the marbling of meat relative to the other treatments (p<0.05). The firmness was greater with ZnO treatment compared to Cu-met and ZnO treatments (p<0.05). These results indicate that inorganic Zn can improve growth performance, however, inorganic Cu and Zn are as effective as organic Cu and Zn at improving nutrient digestibility, carcass traits and meat quality. This form of organic additive can be friendlier to the environment than inorganic supplements.

여러가지 신뢰도에 근거한 자동차 보험료 예측

김영화,김미정,김명준,Kim, Yeong-Hwa,Kim, Mi-Jung,Kim, Myung-Joon 한국통계학회 2011 응용통계연구 Vol.24 No.2

Credibility theory is one of the most important theories of actuarial science to calculate the proper insurance premium. In this paper, the rule of relative exposure volume, the square root rule, the B$\"{u}$hlmann credibility and B$\"{u}$hlmann-Straub credibility with the basic concept of credibility have been introduced, Also, we estimate new premiums based on these methods for real data. As a result, the rule of relative exposure volume provides the highest accuracy. 합리적인 보험료를 책정하기 위해 사용되는 신뢰도 이론은 보험통계학의 중요한 주요 이론 가운데 하나이다. 본 논문에서는 신뢰도 이론의 기본 개념과 함께 유효대수 법칙, 제곱근 법 칙, B$\"{u}$hlmann 신뢰도, B$\"{u}$hlmann 신뢰도, B$\"{u}$hlmann-Straub 신뢰도 등을 소개하였다. 또한 이러한 방법들에 근거하여 새로운 보험료를 실제 자료를 시용하여 예측하였다. 결론적으로, 유효대수 법칙이 가장 정확한 예측력을 보였다.

Relationship Between Academic Stress and College Life Adaptation for Dental Hygiene Students: Focus on Self-efficacy, Burnout, Social Support

( Ji-yeon Oh ),( Jong-hwa Jang ) 융합연구학회 2018 융합연구학회지 Vol.2 No.1

The purpose of this study is to investigate the academic stress, self efficacy, burn out, social support and college life adaptation of dental hygiene students and their correlations with related factors influencing college life adaptation. A total of 265 students were selected as stratified sampling methods at the universities in which the department of dental hygiene was established nationwide. From September 1, 2015 to October 22, 2015, the self report questionnaire was used. The main variables were college life adaptation, academic stress, self efficacy, burn out, social support, and analyzed using SPSS 21.0. College life adaptation was 5.17 out of 9 points, academic stress was 2.88 points out of 6 points, self efficacy, burn out, and social support were 3.35, 2.60, and 3.54 out of 5, each respectively. Self efficacy and stress due to task and class were significant influences on individual-emotional adaptation in college life adaptation. In the case of college environment adaptation, exhaustion, self efficacy and social support were significant influencing factors. In the case of social adaptation, self efficacy and social support were significant influencing factors. Overall, academic stress and college life adaptation were closely related, and social psychological factors such as burn out, self efficacy and social support were mediated. Therefore, it is suggested that it should be applied to college education in order to increase adaptation of dental hygiene students, to reduce academic stress and burn out, and to develop intervention strategies that can enhance self efficacy and social support.

비구, 비체(鼻涕), 비색(鼻塞), 비연(鼻淵)의 침구치료(鍼灸治療)에 관(關)한 문헌적(文獻的) 고찰(考察)

김영화,이병렬,Kim, Young Wah,Lee, Byung Ryul 대전대학교 한의학연구소 2000 한의학연구소 논문집 Vol.8 No.2

About the acupuncture & moxibustion therapy of allergic rhnitis, nasal discharge(鼻涕), stuffy nose(鼻塞), and rhinorrlea with turbid discharge(鼻淵), the results are obtained as follows: 1. It appeared that the reasons for allergic rhnitis are the lung's contacting to Wind-Coid(風寒), Damhwa(痰火), and accumulated fever of stomach, the reasons for nasal discharge(鼻涕) is the Cold-Hot of a lung. the reasons for stuffy nose(鼻塞) is the harmonization of the Lung(肺氣), the reasons for the rhinorrlea with turbid discharge(鼻淵) are the heat of the Brain(腦熱), heat of the Gallbladder(膽熱), most probably. 2. When we do a acupuncture & moxibustion therapy for the allergic rhnitis, we used P'ungmun(風門), Shinjong(神庭), mostly. For the nasal diacharge(鼻涕) ; Yonghyang(迎香), P'ungmun(風門), Sangsong(上星) and Sugu(水溝) were the most useful acupuncture point. For the stuffy nose(鼻塞) ; Sangsong(上星), Yonghyang(迎香), Hapkok(合谷), and Sugu(水溝) were used most frequently. For the rhinorrlea with turbid discharge(鼻淵); Sangsong(上星), Hapkok(合谷), Yonghyang(迎香), and P'ungji(風池) were the best acupuncture point. 3. Concerning the frequencies of the acupuncture & moxibustion therapy for these four symptoms, Bladder Meridian(膀胱經) and Governor Vessel Meridian(督脈) were the most useful ones. As to the acupuncture point, Sangsong(上星), Yonghyang(迎香), Sugu(水溝) and Hapkok(合谷) were used most repeatedly.

유방 X-선 촬영술에서 한국 여성의 적정 압박력에 대한 고찰과 촬영 조건 비교

김영화,김긍식,권영갑,Kim Young Wha,Kim Keung Sik,Kwon Young Kap 대한방사선사협회 2002 대한방사선사협회지 Vol.28 No.1

Purpose : For the woman, compression of breast during mammogram introduce pain that woman used to have fear for mammogram. Therefore, the purpose of this study was to determine the adequate and minimized compression power for mammogram with maintaining th

돼지고기 품질 고급화 생산 사양기술

김영화,Kim, Yeong-Hwa 한국단미사료협회 2006 피드저널 Vol.4 No.6

돼지고기 생산은 소비자의 구매 욕구에 따라야 하는데, 국민소득 증대와 건강에 대한 관심고조로 고품질 안전 돈육 생산의 필요성이 그 어느 때보다 절실히 요구되는 시점이다. 이런 시대적 요청에 따라 정부에서도 품질이 고급화된 돼지고기를 생산하기 위한 방안으로 브랜드돈육 육성에 박차를 가하고 있다. 2005년에는 농림부와 농협중앙회가 주관한 제 3회 우수 축산물 브랜드 경진대회를 개최한 바 있고, 2005년에는 『소비자 문제를 연구하는 시민의 모임』이 농림부로부터 우수 축산물브랜드 인증기관으로 승인 받아 한우 13개소, 돼지 12개소 브랜드 생산업체를 인증하였고, 2006년에는 닭이 신규로 추가되어 3개 축종에 대해 브랜드 인증사업이 진행 중에 있다. 금후에도 브랜드 인증과 관련된 사업은 정부나 소비자단체에서 지속적으로 추진될 것으로 전망되므로 양돈 생산농가와 업체에서는 브랜드 돈육을 생산할 수 있는 노력을 꾸준히 실천해야 할 것으로 생각된다. 브랜드 돈육 생산은 종돈, 사료, 사양기술 등을 통일하고 돼지고기의 품질을 높이며, 돈육을 소비자의 식탁까지 안전하게 유통시키고, 브랜드관리에 최선을 다하는 체계화된 일련의 사업이라 할 수 있다. 이런 시점에서 돼지고기 품질 고급화 생산을 위한 사양기술 방안에 대하여 살펴볼까 한다.

블럭방법에 근거한 영상의 적응적 대비증폭 알고리즘

김영화,Kim, Yeong-Hwa 한국데이터정보과학회 2011 한국데이터정보과학회지 Vol.22 No.3

The noise caused by a variety of reasons worsens the quality of input image when we use the images reproducing device. The basic difficulty to solve this problem is that the noise and the signal are difficult to be distinguished. Contrast enhancement such as unsharp masking is one of the most important procedures to improve the quality of input images. The conventional unsharp masking enhances the images by adding their amplified high frequency components. The noise component of the input images, however, also tends to be amplified due to the nature of the unsharp masking. This paper considers the block approach for detecting niose and image feature of the input image so that the unsharp masking could be adaptively applied accordingly. Simulation results show that it is made possible to enhance contrast of the image without boosting up the noisy components by applying the proposed algorithm. 영상 구현 장치를 사용할 때, 여러가지 이유로 인하여 발생하는 잡음은 화질을 악화시키는 문제를 발생시킨다. 이러한 문제를 해결하는 과정에서의 근본적인 어려움은 영상에서 보존해야 할 신호와 제거해야할 잡음을 구분하는 것이 쉽지않다는 것이다. 언샵 마스킹과 같은 대비증폭 과정은 영상을 개선하는데 사용되는 매우 중요한 방법이다. 이 방법을 사용하면 증폭된 고주파 성분이 원래의 영상에 더하여 영상이 개선되는 효과를 얻는데, 언샵 마스킹의 특성으로 인하여 잡음 성분도 강화되어 또렷하게 부각되는 문제가 발생한다. 본 연구에서는 입력 영상에서 신호와 잡음을 효과적으로 구별하여 적응적으로 적절한 언샵 마스킹 처리를 할 수 있는 블럭방법을 제안한다. 모의실험 결과, 제안한 알고리즘을 적용함으로써 잡음 성분을 증폭시키지 않으면서 전체적인 영상의 질을 개선할 수 있는 것이 가능한 것을 확인하였다.

Isolation and characterization of autoflocculating mutants of cyanobacterium Arthrospira platensis

김영화,Young-Hwa Kim,Hyun-Jin Park,이상훈,이재화 한국화학공학회 2013 Korean Journal of Chemical Engineering Vol.30 No.2

Harvesting microalgae is a major concern for mass culture in industry. Flocculation is an easy and effective way to harvest microalgae. However, flocculation using chemical flocculants is not feasible for scaling-up due to their toxicity. As an alternative technique, mutation breeding of autoflocculating microalgae strain has been reported in this study. We characterized autoflocculating mutants of Arthrospira platensis (A. platensis) by ethyl methane sulfonate (EMS). The cells of mutants were aggregated during the culture and dry cell weight increased 1.2- to 1.8-fold compared to the wild type. Autoflocculation was induced highly at an optimal pH level of 9 and the flocculation efficiency reached almost 90%. Mutants showed higher flocculation efficiency irrespective of the addition of chemical flocculants. Thus, it is definitely useful to harvest microalgae using autoflocculating mutants in large-scale culture without any drawbacks of harvested algal biomass.

일본의 농촌용수개발 사업제도와 수변환경 정비사례 소개

김영화,Kim Young Hwa 한국관개배수위원회 2005 한국관개배수논문집 Vol.12 No.1

관수로시스템의 유속계수 추정기법에 관한 연구

김영화,임재식,박영진,Kim Young-hwa,Lim Jae-sik,Park Young-jin 한국관개배수위원회 1996 한국관개배수논문집 Vol.3 No.2

To make a real hydraulic simulation model, Hazen-Williams' coefficient must be calibrated using the measured discharges and hydraulic head loss. In this paper, calibrating method of Hazen-Williams' coefficient was proposed for pipeline system. The calibra