• 한국축산식품학회지
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• 제37권5호
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• pp.663-669
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• 2017

This study were estimated the contribution of carcass traits to unit price, to analyze the marbling score as a categorical variable rather than a numerical variable, and to develop an optimal model that also includes the holiday effect and the raising period. The data for this study were acquired from the Quality Evaluation of the Korea Institute for Animal Products, and consisted of the trading records of 1,613,699 heads at 12 wholesale markets from 2010 to 2014. The unit price of a cow was estimated from the following parameters: -52.50 Won/mm, $8.93Won/cm^2$, 7.20 Won/kg, and -1.04 Won/day for backfat thickness, eye muscle area, carcass weight, and raising period, respectively. Parameters for the dummy variables of marbling scores varied from 0 to 8328.74 Won/kg, which means that each marbling score grade had a different price value. The unit price of a steer was estimated from the following parameters: - 92.12 Won/mm, $20.22Won/cm^2$, 1.30 Won/kg, and -1.72 Won/day for backfat thickness, eye muscle area, carcass weights, and raising period, respectively. Parameters for dummy variables of marbling scores varied from 0 to 7338.80 Won/kg, which means that the grades of each marbling score had different price values. The unit price of sales during traditional holidays was significantly higher (827.71 Won/kg for cows, and 645.15 Won/kg for steers) than during non-holidays.We conclude that the use of categorical values for marbling scores would be needed to evaluate the price of Hanwoo beef using multiple regression analysis based on carcass traits and environmental factors.

• 한국식품영양과학회지
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• 제39권9호
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• pp.1313-1319
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• 2010

일품벼에서 유래된 신형질미의 취반 및 가공 등 용도개발을 위한 목적으로 백미와 현미에 대한 성분 분석 및 물리적 특성을 분석한 결과, 원품종인 일품벼과 신형질미인 고아미2호, 백진주, 설갱의 이화학적 특성은 품종 간에 유의한 차이를 보였다. 고아미2호는 고 아밀로스 품종으로 분류되며, 난소화성 다당류의 함량도 높게 나타난 반면에, 백진주는 저아밀로스 품종으로 반 찰벼의 특성을 보였다. 지방산은 백미와 현미에서 linoleic acid와 oleic acid가 전체 지방산의 70~75%를 차지하는 양질의 기름으로서, 백미는 linoleic acid가 현미에는 oleic acid 함량이 높은 경향을 보였다. 한편, 고아미2호는 palmitic acid 함량이 가장 높아서 다른 품종과 다소다른 지방산 조성을 나타내었다. 백미의 주요 아미노산은 aspartic acid, glutamic acid, cysteine, hydroxy lysine이고, 현미에서는 cysteine을 제외한 aspartic acid, glutamic acid, hydroxy lysine인 것으로 나타났다. 쌀 품종의 호화특성을 DSC로 분석한 결과, 호화에 필요한 흡열엔탈피는 반 찰성인 백진주가 가장 높고, 다음은 설갱, 일품, 고아미2호 순으로, 고아미2호가 가장 낮은 흡열엔탈피을 보였다. 취반미의 식미치는 일품벼가 가장 높았으나, 밥의 텍스쳐를 분석한 결과, 고아미2호의 경도가 가장 높고, 일품, 백진주, 설갱 순으로 경도가 낮아지는 것으로 분석되었다. 신형질미 중에서, 고아미2호 취반미는 푸석한 조직감을 보여 다른 품종과는 현저히 다른 특성을 나타내므로, 고아미2호는 취반용 쌀로서 이용하기 보다는 가공용 기능성 곡류 소재로서 활용 가능성이 높으며, 반면에 백진주와 설갱은 원품종인 일품과 비교했을 때 취반용과 가공용도에 모두 적합할 것이다.

• 지능정보연구
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• 제15권4호
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• pp.79-98
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• 2009

인터넷기업에 대한 기업가치 평가에 대한 새로운 평가방식의 필요성과 전통적인 기업가치 평가모형의 한계를 인식하여 미래의 기회가치를 나타내고, 시장성, 고객확보 능력, 기술력, 마케팅 능력 등을 종합적으로 대변해 줄 수 있는 변수로써 웹 트래픽(web traffic)이 많은 연구의 대상이 되고 있다. 웹 트래픽 정보는 인터넷기업 가치에 대한 중요한 경제적 의미를 가지고 있다. 왜냐하면 웹 교통량이나 방문객의 확보 없이는 현재 및 미래의 매출로 전환될 수 있는 고객관계를 만들어 가기가 불가능하기 때문이다. 본 연구의 주요 목적은 인터넷기업의 웹 트래픽 정보가 기업가치에 영향을 미치는지 실증적으로 연구하는 것이다. 이를 위해 인터넷기업의 경우 중요한 가치동인이라고 생각되는 웹 트래픽 정보의 가치관련성을 재무정보와 함께 Ye and Finn(1999)의 로그선형모형으로부터 도출된 Hand(2000a)의 분석모형을 이용하여 실증적으로 검증하였다. 연구결과 첫째, 순방문자수, 방문횟수, 페이지뷰 등 모든 웹 트래픽 변수들이 기업가치에 유의한 양의 결과를 가지고 있는 것으로 나타났다. 이는 인터넷기업의 가치 평가시 재무정보와 함께 웹 트래픽 정보도 중요한 결정 요인임을 의미한다. 둘째, 웹 트래픽의 네트워크 효과에 대한 분석에서는 순방문자수, 방문횟수, 페이지뷰 변수의 네트워크 효과는 기업가치에 유의한 정(+)의 관계를 가지고 있다는 것을 알 수 있었다.

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.1221-1233
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• 2016

Purpose: To investigate any potential association between wine and breast cancer risk. Materials and Methods: We quantitatively assessed associations by conducting a meta-analysis based on evidence from observational studies. In May 2014, we performed electronic searches in PubMed, EmBase and the Cochrane Library to identify studies examining the effect of wine drinking on breast cancer incidence. The relative risk (RR) or odds ratio (OR) were used to measure any such association. Results: The analysis was further stratified by confounding factors that could influence the results. A total of twenty-six studies (eight case-control and eighteen cohort studies) involving 21,149 cases were included in our meta-analysis. Our study demonstrated that wine drinking was associated with breast cancer risk. A 36% increase in breast cancer risk was observed across overall studies based on the highest versus lowest model, with a combined RR of 1.0059 (95%CI 0.97-1.05) in dose-response analysis. However, 5 g/d ethanol from wine seemed to have protective value from our non-linear model. Conclusions: Our findings indicate that wine drinking is associated with breast cancer risk in a dose-dependent manner. High consumption of wine contributes to breast cancer risk with protection exerted by low doses. Further investigations are needed for clarification.

• 건축역사연구
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• 제8권3호
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• pp.23-38
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• 1999

The purpose of this study is to analogize the appearance of Korean Ancient Architecture in view of the Stone Remains from 3 Kingdom Period to Unificated Shilla Period. But in these period, there is no building remains but some stupas and fine arts. Especially, there are many architectural appearance and revealing signature in these Historical Stone remains. Architectural elements which are analogized by stone remains what has value as historical materials by preservation of original form from 3 Kingdom Preiod to Unificated Shilla Period are as follows : 1) Platform, the representative characteristic of Korean traditional architecture, was frame structure and accumulate structure. And circular or square footing stood a same shape column on it is put on the platform. 2) In the case of column, there used entasis column and inclined column and circular chamfer technique was applied on the top side of it. Upper side of column, capital and head pentrating tie that small bearing block was put on the center of it was joined. And longitu야nal rest(長舌) supported a cross beam. Capital and small bearing block had no bottom heel, and heel side was curved and straight. Centered bracket structure was often used, and multi bracket structure is not used yet. Inward incline technique was used. 3) Inward opening pair door which had lintel, threshold, doorjamb was usually used, Fixing stone was used for structural safety, and circular handle and lock was used for decoration. Handrail was used on the edge of wooden floor for decorative effect and safety. 4) Square rafter and circular rafter were used in the same period and so did flying rafter. Double eaves and single eave were used in the same period but, single eave was usually used. In this period, square rafter was usually used. This would be studied more by comparing with Japanese wooden architecture. 5) Hipped roof was used and half-hipped roof was not used yet. In front of th hip, there are small sculpture called Jap-Sang(雜像), and windbell was hang on the end of the hip rafter. Concave roof tile, convex roof tile, round eaver tile, decorative tile at end of roof ridge were used. Lotus style was well used on the face of roof tile for decoration. From the results of this study, wooden architecture of Unificated Shilla period was simple compare to Koryo dynasty and Chosun dynasty but, it had some brilliant character. It was hard work that analogized the form of non-existent wood architecture of Ancient Korean period by restricted stone remains. But, in addition to the results of this study and research of old documentations, more study should be go on.

• 한국공간정보시스템학회 논문지
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• 제12권1호
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• pp.66-75
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• 2010

항공사진이나 다중분광영상을 활용하여 도로 지도를 제작할 경우 최근에 건설된 도로에 대한 지도의 업데이트가 너무 늦어 일반 수요자의 수준을 고려한 서비스를 제공하지 못하는 한계가 있다. Google Earth에서는 RGB값에 의거한 이미지가 아주 높은 주기 해상도를 가지고 무료로 제공되고 있기 때문에 도로를 추출하기 주요 데이터로 부상되고 있다. 본 연구는 Google Earth로 도로를 추출하기 위한 최적의 RGB 표준값과 범위값을 추적하는 의도로 출발하였다. 5개의 사례연구지역에 대해 Google Earth RGB 영상을 활용하여 도로를 추출할 수 있는 능력에 대해 검증이 이루어졌다. 수동 검출을 통해 Google Earth 이미지에서 RGB 대푯값을 각각 126, 125, 127을 도출하였고, 도로의 특성을 감안한 대푯값 범위를 분석하여 RGB값 각 25%, 30%, 19%가 최적인 것을 알 수 있었다. 아울러 Google Earth 이미지의 디스플레이 축척간에 RGB 표준값과 범위값이 큰 차이가 없음을 확인할 수도 있었다. 기존연구에서 활용된 다양한 알고리즘이 RGB 화소값의 최적구간을 추적할 수 있었으며 61cm 공간해상도를 가진 Quickbird RGB 데이터가 다양한 형태의 도로를 추출할 수 있다는 것이 확인되었다.

• Journal of Ginseng Research
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• 제44권4호
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• pp.580-592
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• 2020

Background: Radix et Rhizoma Ginseng (thereafter called ginseng) has been used as a medicinal herb for thousands of years to maintain people's physical vitality and is also a non-organ-specific cancer preventive and therapeutic traditional medicine in several epidemiologic and preclinical studies. Owing to few toxic side effects and strong enhancement on body immunity, ginseng has admirable application potential and value in cancer chemoprevention. The study aims at investigating the chemopreventive effects of ginseng on cutaneous carcinoma and the underlying mechanisms. Methods: The mouse skin cancer model was induced by 7,12-dimethylbenz[a]anthracene/12-O-tetradecanoylphorbol-13-acetate. Ultraperformance liquid chromatography/mass spectrometry was used for identifying various ginsenosides, the main active ingredients of ginseng. Comprehensive approaches (including network pharmacology, bioinformatics, and experimental verification) were used to explore the potential targets of ginseng. Results: Ginseng treatment inhibited cutaneous carcinoma in terms of initiation and promotion. The content of Rb1, Rb2, Rc, and Rd ginsenosides was the highest in both mouse blood and skin tissues. Ginseng and its active components well maintained the redox homeostasis and modulated the immune response in the model. Specifically, ginseng treatment inhibited the initiation of skin cancer by enhancing T-cell-mediated immune response through upregulating HSP27 expression and inhibited the promotion of skin cancer by maintaining cellular redox homeostasis through promoting nuclear translocation of Nrf2. Conclusion: According to the study results, ginseng can be potentially used for cutaneous carcinoma as a chemopreventive agent by enhancing cell-mediated immunity and maintaining redox homeostasis with multiple components, targets, and links.

• International Journal of Quality Innovation
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• 제8권1호
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• pp.40-75
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• 2007

In the early industrial age which with high intensity of machine and labor, using financial measurement index was good enough to tie in company's mechanization and philosophy of management and been in efficiency. But being comply with "New Economic age," a new economic environment is full of knowledge and information, the enterprise competition had changed from tangible assets, plants to intangible innovation ability of knowledge. As recognizing the new tendency by enterprise, they value gradually the growth and influence from learning. Practice of organization learning not only needs firm structure and be in coordination with both hardware and software, but also needs an affect measurement model to offer enterprise to estimate learning performance. It's a good instrument of financial performance measure mold in the past years, But it's for measuring the past, couldn't formulate enterprise trend to future, hard to estimate investment for future, such as development of products, organization learning, knowledge management etc, as which intangible assets and knowledge ability just the key factors of being win around competition environment in the future. In 1992, Kaplan and Norton brought up Balance Scorecard (BSC) on Harvard Business Review, as an instrument helping enterprise to measure performance, which is being considered to be a most influence management instrument. It added non-financial index such as customer, internal process and learning growth besides traditional financial index, as offering enterprise an index to measure and manage intangible assets and intellectual property. As being aware of organization learning is hard to be ignored in the new economic age, this research is based on learning and growth of BSC, and citing one national material company try to let the most difficult measurement performance of organization learning, to be estimate through BSC, analyze of factor and individual case, to discuss the company how to make the related strategy and vision of organization learning to develop learning and growth of the structure of BSC, subject the matter of out put factors to be discussed, and measure the outcomes as a result of research. The research affect offers (1) the base implement procedure of carrying out BSC; (2) the reference of formulating measurement index while enterprise using BSC to estimate performance of organization learning; (3) the possibility bottleneck maybe forcing while carrying out BSC, to be an improvement or preventive for enterprise.

• Animal Bioscience
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• 제34권7호
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• pp.1105-1115
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• 2021

Objective: To conserve and utilize the genetic resources of a traditional Chinese indigenous pig breed, Liangshan pig, we assessed the genetic diversity, genetic structure, and genetic distance in this study. Methods: We used 50K single nucleotide polymorphism (SNP) chip for SNP detection of 139 individuals in the Liangshan Pig Conservation Farm. Results: The genetically closed conserved population consisted of five overlapping generations, and the total effective content of the population (Ne) was 15. The whole population was divided into five boar families and one non-boar family. Among them, the effective size of each generation subpopulation continuously decreased. However, the proportion of polymorphic markers (P_N) first decreased and then increased. The average genetic distance of these 139 Liangshan pigs was 0.2823±0.0259, and the average genetic distance of the 14 boars was 0.2723±0.0384. Thus, it can be deduced that the genetic distance changed from generation to generation. In the conserved population, 983 runs of homozygosity (ROH) were detected, and the majority of ROH (80%) were within 100 Mb. The inbreeding coefficient calculated based on ROH showed an average value of 0.026 for the whole population. In addition, the inbreeding coefficient of each generation subpopulation initially increased and then decreased. In the pedigree of the whole conserved population, the error rate of paternal information was more than 11.35% while the maternal information was more than 2.13%. Conclusion: This molecular study of the population genetic structure of Liangshan pig showed loss of genetic diversity during the closed cross-generation reproduction process. It is necessary to improve the mating plan or introduce new outside blood to ensure long-term preservation of Liangshan pig.

• Natural Product Sciences
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• 제29권2호
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• pp.74-82
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• 2023

Nepeta sibirica L. or Siberian catmint is a medicinal plant species used in Mongolian traditional medicine for curing human different disorders and veterinary practices. The previous study of the whole plant concentrated on the determination of its essential oil composition and reported that the major ones are sesquiterpenes, including nepetalactone. The aim of this study was to reveal a new biological activity of the above-ground parts of N. sibirica L. and compare the activity of different extracts correlating with the content of biologically active compounds and evaluate their toxicity. For this purpose, anti-oxidative and acetylcholinesterase inhibitory activities of the above-ground parts of N. sibirica L. aqueous and ethanol (EtOH) (40%, 70%) extracts were assayed spectrophotometrically. The aqueous extract showed positive anti-oxidative activity by both tested DPPH and FRAP assays with IC₅₀ 134.24 ± 1.42 mg/mL and FRAP value 1385.15 ± 8.12 µmol/L at 200 ㎍/mL, in contrast to 40% and 70% EtOH extracts. The 70% EtOH extract presented the highest acetylcholinesterase inhibitory activity (IC₅₀ 77.29 ± 0.38 mg/mL) followed by 40% EtOH extract (176.72 ± 0.35 mg/mL) and aqueous extract (275.41 ± 0.23 mg/mL). Total phenolics were found to be gallic acid equivalent, % 3.74 ± 0.05 (70% EtOH), 3.94 ± 0.04 (40% EtOH), and 3.79 ± 0.16 (aqueous), whereas the total flavonoids as a rutin equivalent, % as 2.01 ± 0.12, 1.44 ± 0.17 and 1.99 ± 0.02, each. The aqueous extract showed the best anti-oxidative and lowest activity against the acetylcholinesterase; however, the 70% EtOH extract showed the opposite effects than that of the aqueous. No mortality incidence was visible at various doses, indicating that the oral median lethal dose of aqueous and 70% EtOH extracts were considered greater than 5000 mg/kg. N. sibirica L. belongs to the non-toxic category of the OECD 423 classification.