• Title/Summary/Keyword: collection periods

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Physicochemical Characteristics and Nutritional Components of Goroshoe (Acer mono Max.) Sap with Collection Periods (고로쇠 수액의 유출시기별 이화학적 특성과 영양성분)

  • Jeong, Su-Jeong;Lee, Chang-Hyeon;Kim, Hyun-Young;Lee, Sang-Hoon;Hwang, In-Guk;Shin, Chang-Seob;Park, Eui-Seok;Lee, Jun-Soo;Jeong, Heon-Sang
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.10
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    • pp.1482-1487
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    • 2011
  • This study evaluated the physicochemical characteristics and nutritional components of Goroshoe (Ace rmono Max.) sap related with collection periods. The changes of browning index, turbidity, pH, total acidity, organic acids, free sugar, crude protein, crude ash, and minerals were investigated. Browning index and turbidity were slightly increased, while pH and total acidity were not changed as collection periods increased. Citric acid decreased slightly from 0.081 to 0.045 mg/mL at middle collection periods. Malic acid also decreased from 0.494 to 0.416 mg/mL at middle collection periods but then afterward increased to 0.674 mg/mL as collection periods increased. Sucrose decreased from 1.759 to 1.000%, while fructose increased from 0.023 to 0.044% as collection periods increased. Crude protein increased remarkably from 0.80 to 17.49 mg% as collection periods increased. Crude ash decreased slightly from 0.04 to 0.03% at middle collection periods, and then increased afterward to 0.06% as collection periods increased. Potassium increased from 13.43 to 49.75 mg/L as collection periods increased. These results indicate that the useful components of Goroshoe sap increased with increasing collection periods, but turbidity could be reduced.

REACTION TIME, SEMEN OUTPUT AND SEMEN QUALITY OF BUFFALO BULLS AFTER PRE-COLLECTION INJECTION OF PROSTAGLANDIN F2 ALPHA (PGF2 ALPHA)

  • Capitan, S.S.;Antiporda, G.S.;Momongan, V.G.
    • Asian-Australasian Journal of Animal Sciences
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    • v.3 no.4
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    • pp.343-346
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    • 1990
  • A study was conducted to determine the effect of prostaglandin $F_2$ alpha ($PGF_2$ alpha) on the reaction time and seminal characteristics of buffalo bulls. Semen was collected from three Murrah bulls in three periods: pre-treatment, treatment and post-treatment. During the treatment period each bull was administered 2 ml $PGF_2$ alpha (Synchrocept, Fenprostalene) im, 1 hour prior to semen collection. In the post-treatment, semen was collected 7 days after the last injection of $PGF_2$. Semen samples were evaluated immediately after collection. Pre-collection injection of $PGF_2$ alpha has no significant effect on reaction time, semen volume, percentage motility, sperm concentration and total number of sperms per ejaculate. Fluctuations in semen color and consistency were observed. There is a significant (p<0.05) increase in the mean percentage of normal spermatozoa during the treatment and post treatment periods. Likewise, administration of PG results into a significant (p<0.05) rise on the average percentage of live sperms but this effect was not manifested in the post-treatment period. Improvement in mass activity was observed during the treatment and post-treatment periods.

Effect of Preservation Periods and Subcultures on Fruiting Body Formation of Cordyceps militaris In Vitro

  • Sung, Jae-Mo;Park, Young-Jin;Lee, Je-O;Han, Sang-Kuk;Lee, Won-Ho;Choi, Sung-Keun;Shrestha, Bhushan
    • Mycobiology
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    • v.34 no.4
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    • pp.196-199
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    • 2006
  • Effects of various preservation periods and subcultures on fruiting body formation of Cordyceps militaris were investigated using EFCC C-10995 single ascospore strains. Fruiting body formation by original strains was profuse when preserved at $4^{\circ}C$ for $5{\sim}6$ months. Fruiting from subcultures was stable till second to sixth subcultures, after which it decreased sharply. The more the colony color of subcultures changed, the less the fruiting bodies formed. Liquid inoculum preparation of single ascospore strains in the same or separate broths did not affect fruiting body formation. Similarly, two strains C-10995-3 and C-10995-6 in different numbers during liquid inoculum preparation produced similar fruiting bodies.

A Quantitative Approach to a Similarity Analysis on the Culinary Manuscripts in the Chosun Periods (계량적 접근에 의한 조선시대 필사본 조리서의 유사성 분석)

  • Lee, Ki-Hwang;Lee, Jae-Yun;Paek, Doo-Hyun
    • Language and Information
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    • v.14 no.2
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    • pp.131-157
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    • 2010
  • This article reports an attempt to perform a similarity analysis on a collection of 25 culinary manuscripts in Chosun periods using a set of quantitative text analysis methods. Historical culinary texts are valuable resources for linguistic, historic, and cultural studies. We consider the similarity of two texts as the distributional similarities of the functional components of the texts. In the case of culinary texts, text elements such as food names, cooking methods, and ingredients are regarded as functional components. We derive the similarity information from the distributional characteristics of the two key functional components, cooking methods and ingredients. The results are also quantified and visualized to achieve a better understanding of the properties of the individual texts and the collection of the texts as a whole.

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Addition of hydrochloric acid to collection bags or collection containers did not change basal endogenous losses or ileal digestibility of amino acid in corn, soybean meal, or wheat middlings fed to growing pigs

  • Lee, Su A;Blavi, Laia;Navarro, Diego M.D.L.;Stein, Hans H.
    • Animal Bioscience
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    • v.34 no.10
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    • pp.1632-1642
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    • 2021
  • Objective: The hypothesis was that apparent ileal digestibility (AID), basal endogenous losses, and standardized ileal digestibility (SID) of amino acids (AA) are not affected by adding acid to collection containers or bags used to collect ileal digesta from pigs. Methods: Twenty-four growing barrows (initial body weight: 77.8±4.5 kg) that were fitted with a T-cannula in the distal ileum were fed diets for three 7-d periods. An N-free diet and 3 diets containing corn, soybean meal, or wheat middlings as the sole source of AA were used. Within each period, each of the 4 diets were fed to 6 pigs. Among the 6 pigs, digesta from 3 pigs were collected in bags containing no HCl, whereas 40 mL of 3 N HCl was included in the bags used to collect digesta from the remaining 3 pigs. Every other bag collected from each pig was emptied into a container without adding HCl, whereas the remaining bags were added to a container along with 40 mL of 3 N HCl for each bag. All digesta were stored at -20℃ immediately after collection. Data were analyzed using a model that included feed ingredient, HCl in bags, HCl in containers, and all 2-way and 3-way interactions as fixed effects. No 3-way interactions were significant, and data were, therefore, reanalyzed independently for each diet as a 2×2 factorial. Results: There were no interactions between adding HCl to collection bags and to containers, and no effects of adding HCl to collection bags or containers for AID, basal endogenous losses, or SID of most AA were observed. Conclusion: It is not necessary to add acid to digesta collection bags or collection containers if ileal digesta are stored at -20℃ immediately after collection.

A Study on the Collection Policy of Presidential Libraries and Museums in the United States (미국 대통령기록관의 수집정책에 관한 연구)

  • Kang, Min-Jung;Lee, Seung-Hwi
    • The Korean Journal of Archival Studies
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    • no.46
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    • pp.233-286
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    • 2015
  • A Collection Policy provides a direction to an archive, but also provides a foundation for developing practical measures of planning and collecting process. In terms of a Collection Policy, it enables detail collection as regulations or codes cannot be as defined as the level of collection, thus, it allows systematic and strategic approaches in collecting former presidents' records. In the case of United States, where the same presidential system exists as South Korea, although the individual Presidential Libraries and Museums have different periods of collections, the Collection Policy was implement a half century ago that is used as a foundation data for record collection. However, the Presidential Archives in South Korea do not have a Collection Policy implemented that the collection is based on 'collection regulations' and 'collection plans.' In the comparison of the Collection Policy at the Presidential Libraries and Museums in the United States and the "collection regulation" and "collection plan" at the Presidential Archives in South Korea, it shows that while the Presidential Libraries and Museums' Collection Policy applies the characteristics of individual presidents that the collection comprises the records from more than the appointed period that it includes various personal records of relating figures, events, regions, and even personal interest; the records are written in detail to the detailed scale and procedure. On the other hand, the Presidential Archives in South Korea, the records collected based on 'collection regulations' and 'collection plans' do not sufficiently apply the individual features of the former presidents that the collections remain as general and unclear. This is due to the absence of a Collection Policy that systemizes and sustains professionalism and consistency of collection plans and procedures. Hence, this study is conducted to propose collection policy implementation measures by analyzing the Collection Policy of the Presidential Libraries and Museums in the United States and identifying implications for applying individual president characteristics.

Field measurements of natural periods of vibration and structural damping of wind-excited tall residential buildings

  • Campbell, S.;Kwok, K.C.S.;Hitchcock, P.A.;Tse, K.T.;Leung, H.Y.
    • Wind and Structures
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    • v.10 no.5
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    • pp.401-420
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    • 2007
  • Field measurements of the wind-induced response of two residential reinforced concrete buildings, among the tallest in the world, have been performed during two typhoons. Natural periods and damping values have been determined and compared with other field measurements and empirical predictors. Suitable and common empirical predictors of natural period and structural damping have been obtained that describe the trend of tall, reinforced concrete buildings whose structural vibrations have been measured in the collection of studies in Hong Kong compiled by the authors. This data is especially important as the amount of information known about the dynamic parameters of buildings of these heights is limited. Effects of the variation of the natural period and damping values on the alongwind response of a tall building for serviceability-level wind conditions have been profiled using the gust response factor approach. When using this approach on these two buildings, the often overestimated natural periods and structural damping values suggested by empirical predictors tended to offset each other. Gust response factors calculated using the natural periods and structural damping values measured in the field were smaller than if calculated using design-stage values.

A Study on Efficient Administration of Library Collections with Emphasis on Establishment of Weeding Criteria (도서관 장서의 효율적인 운영방안에 관한 연구 -장서의 폐기기준 설정을 중심으로-)

  • Lee, Un-Chul
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.4 no.1
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    • pp.103-127
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    • 1980
  • Due to the rapid growth of publications, librarians have been facing the problems caused by the shortage of stack as well as the quality deterioration of library collections. This naturally disappointed the user communities and the present library activities are weak and inadequate. It seems to the author that one of the desirable actions in remedying this problems is to weed library collections properly and regulraly. The purpose of this study is to establish weeding criteria in library collections, particulary in the fields of polictical science, economics and law In order to establish weeding criteria, shelf-time period which is the length of time that a book remains on the shelf between the last two users of a volume, was measured by examining the book cards or date-due slips of circulating books and collections which remained in the stack. The results of this study are as follows: (1) In the fields of political science economics and law, the shelf-time periods of general materials in Korean for circulation was measured. (2) This study shows shelf-time periods that vary in different subject fields. (3) Combining the shelf-time periods of books in active circulation and the total collection including books which have never been circulated, the size of library holdings which may satisfy a certain percentage of the current circulation can be estimated.

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A development of travel time estimation algorithm fusing GPS probe and loop detector (GPS probe 및 루프 검지기 자료의 융합을 통한 통행시간추정 알고리즘 개발)

  • 정연식;최기주
    • Journal of Korean Society of Transportation
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    • v.17 no.3
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    • pp.97-116
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    • 1999
  • The growing demand for the real time traffic information is bringing about the category and number of traffic collection mechanism in the era of ITS. There are, however, two problems in making data into information using various traffic data. First, the information making process of making data into the representative information, for each traffic collection mechanism, for the specified analysis periods is required. Second, the integration process of fusing each representative information into "the information" for each link out of each source is also required. That is, both data reduction and/or data to information process and information fusion are required. This article is focusing on the development of information fusing algorithm based on voting technique, fuzzy regression, and, Bayesian pooling technique for estimating the dynamic link travel time of networks. The proposed algorithm has been validated using the field experiment data out of GPS probes and detectors over the roadways and the estimated link travel time from the algorithm is proved to be more useful than the mere arithmetic mean from each traffic source.

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An Analysis of Research Trends in Korean Journals on the Role of Fathers with Young Children: Research Papers from 2000 to Present (유아기 자녀를 둔 아버지의 역할에 관한 국내학술지 연구동향 분석: 2000년이후 발표된 학술지를 중심으로)

  • Yoon, Hye-Jin;Hur, Young-Rim
    • The Korean Journal of Community Living Science
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    • v.25 no.4
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    • pp.449-460
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    • 2014
  • This study examines research trends in Korean journal articles covering the role of fathers with young children. For this study, 45 research papers published from 2000 to present were analyzed according to research periods, research topics, research types, data collection methods, and data analysis methods. First, the largest number of papers was written since 2010. Second, the largest number of papers in terms of research topics focused on the father's child-rearing involvement and behavior. Third the most frequently used research type was the quantitative study. Fourth, the most frequently used data collection method was the questionnaire method. Fifth, the most frequently used data analysis method was the frequency and mean method. Future research should consider broader age groups of father and children by using various types of data collection and analysis methods. In addition, it should be useful to scrutinize general research trends in Korean journal articles highlighting the importance of roles of fathers with young children in a rapidly changing society.