• Title/Summary/Keyword: measuring units

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A Historical Study of Non-standard Weight and Measuring Units (역대(歷代) 약물(藥物) 비표준(非標準) 계량단위(計量單位)의 고찰(考察))

  • Yun, Sung-Joong;Moon, Young-Choon;Kim, Ji-Hoon;Jung, Gi-Eun;Kim, Yun-Kyung
    • Herbal Formula Science
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    • v.24 no.4
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    • pp.335-351
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    • 2016
  • Objective : This study was done to clarify ambiguous non-standard weight and measuring units in medical classics. Methods : Using medical classics and research dissertations, we studied the basic definitions of weight and measuring units and the types of non-standard weight and measuring units. We compared non-standard weight and measuring units in the reference literatures, to determine the dose of herbs in the prescriptions. Results : There are three types of units in non-standard weight and measuring units. These are 'Quantity measuring unit', 'Resembrance measuring unit', and 'Eye measuring unit'. And we found historical efforts and progresses for proper ways to convert non-standard weight and measuring units to standard weight and measuring units. Conclusions : This research will be the basic data for the standardization of prescriptions. Additional study was still required for precise weighing and measuring in Korean medicine and pharmacy.

A Study on Historical and Cultural Viewpoints of Traditional Measuring Units Conversion (전통적인 길이 척도 환산에 대한 역사·문화적 재고)

  • Lee, DongMyung;Kim, JaeHyo;Kang, YeonSeok;Ko, HoKyoung
    • The Journal of Korean Medical History
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    • v.23 no.2
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    • pp.15-22
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    • 2010
  • Currently, in Korea, all lengths are written in "meter" unit, and the non-statutory measuring units are banned for use. However, in some fields, traditional measuring units are widely used with necessary modifications, and people in such fields raise varying arguments on conversion to "meter" unit. This research examines traditional measuring units from historical and cultural viewpoints, and provides suggestions on how to improve consistency and standardization for more accurate and effective exchangeof scientific opinions.

A Study on the Units of Measuring Scale in Hwangnyongsa Temple Planning (황룡사 가람계획 척도 연구)

  • Kim, Sookyung
    • Journal of architectural history
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    • v.25 no.4
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    • pp.65-73
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    • 2016
  • This paper aimed to identify the units of measuring scale in Hwangnyongsa temple planning with the published excavation survey reports. Hwangyongsa temple site was planned under Silla Capital's urban planning in 6~7C, its full size was $800{\times}800$, and main temple was $400{\times}515$ of Goguryeo's system of measurement. Main hall was located in the center of Hwangnyongsa temple site, and its location could be seen that there was the arrangement of main temple divided into 3 : 2. Building plan measuring units proved to be 351~356mm and 294~ 296mm by analyzing measured data of remains. Lecture hall and Wooden pagoda were rebuilt by using the ancestors' units of measuring scale again and Bell hall was not planned by Tang's system of measurement in middle of 8C. In this respect, it would be important to have a deliberate attitude and lay down stereotypes on research of the units of measuring scale in ancient architecture.

3차원 인체측정기 IBS-2000에 관한 연구

  • Park Yun Chang;Jo Gi Heon
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2005.05a
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    • pp.77-80
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    • 2005
  • In this paper we write to the result of measuring human body shape method-ibs-2000 for human body shape measurement. The size measurement units and measuring speed is very inportant to efficiency of human body shape measurement units. By polygonal mirror system, the size measurement units and measuring time can be retrench.

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Developement of Measuring Units of Space Motion Accuracy in Machining Center (Machining Center의 공간정도 측정장치의 개발)

  • Kim, Young Seuk;Namgung, Suk
    • Journal of the Korean Society for Precision Engineering
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    • v.12 no.2
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    • pp.37-47
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    • 1995
  • In recent years, it has been variously developed for testing the accuracy of circular motion of NC machine tools, for example Telescoping Ball Bar Method by Bryan, Circular test Method by Knapp and $r^{-{\theta} }$ Method by Tsutsumi etc., but these methods are all 2-dimentional measuring methods on plane. These simple methods of circular motion accuracy test of NC machine tools have been studied by many reserchers as above, but it is not yet settled in the code of measuring methods of motion errors of NC machine tools, because of errors of measuring units and sensors, and also especially the difficulties of centering of measuring units and the spindle of machining center. In this paper, in use of 2 rotary encoders and 1 magnetic type linear scale with resolution of 0.5 .mu. m, it has become possible for measuring of 3 dimentional space motion accuracy.

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Investigation on the Students' Abilities of Reading Scales and Conceptions Related with Measuring Instruments and Units (초.중학생의 눈금 읽기 능력 및 측정 도구와 단위에 관련된 개념 조사)

  • Soh, Jong-Ah;Jong, Hee-Kyong;Jung, Yong-Jae
    • Journal of The Korean Association For Science Education
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    • v.20 no.1
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    • pp.1-11
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    • 2000
  • This study investigated both elementary and middle school students' abilities of reading scales and students' conceptions of measuring instruments and units. Seventy two students with 5th grade, sixty nine students with 7th grade, and eighty students with 9th grade were participated. Performance tests and written questionnaires were used. To assess their scale reading abilities, individual performance test was used. Every student should measure length of an envelope, temperature of water, volume of water, etc. And to find out students' conceptions related with measuring instruments and units, written questionnaires with pictures and photographs were used. Some of the students' abilities of reading scales were considerably poor. The results of a two-plate-balance and measuring-cylinder were worse than those of a ruler, a spring-balance, and a thermometer. Many of the students had misconceptions related with measuring instruments. Some of them did not know exactly the meaning of volume, or mass, or force. So they did not know what to measure with the measuring instruments. Also students were confused with several units of volume, force, weight and mass.

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Effects of the Power Transmission Units on the Rotational Accuracy of A Hydrostatic Spindle (동력전달요소에 따른 유정압 주축의 회전정밀도에 관한 연구)

  • Park, C.H.;Ryu, G.W.;Jung, Y.G.
    • Journal of the Korean Society for Precision Engineering
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    • v.12 no.2
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    • pp.59-68
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    • 1995
  • In this study, the effects of the power transmission units on the rotational accuracy are investigated experimentally in a hydrostatic spindle. The effects of warm up time, unbalancing and the position of measuring sensor are pre-examined for the determination of measuring conditions. The misalignment of the power transmission units and the vibration excited by the fluctuation of belt are considered as the dominant parameters of error motion. The variation and scatter of run out at the range of 0 to 3,000rpm in rotational speed are appropriated for the camparison of availabilities of the transmission units to precision spin- dles.

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The Effect of Geographic Units of Analysis on Measuring Geographic Variation in Medical Services Utilization

  • Kim, Agnus M.;Park, Jong Heon;Kang, Sungchan;Hwang, Kyosang;Lee, Taesik;Kim, Yoon
    • Journal of Preventive Medicine and Public Health
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    • v.49 no.4
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    • pp.230-239
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    • 2016
  • Objectives: We aimed to evaluate the effect of geographic units of analysis on measuring geographic variation in medical services utilization. For this purpose, we compared geographic variations in the rates of eight major procedures in administrative units (districts) and new areal units organized based on the actual health care use of the population in Korea. Methods: To compare geographic variation in geographic units of analysis, we calculated the age-sex standardized rates of eight major procedures (coronary artery bypass graft surgery, percutaneous transluminal coronary angioplasty, surgery after hip fracture, knee-replacement surgery, caesarean section, hysterectomy, computed tomography scan, and magnetic resonance imaging scan) from the National Health Insurance database in Korea for the 2013 period. Using the coefficient of variation, the extremal quotient, and the systematic component of variation, we measured geographic variation for these eight procedures in districts and new areal units. Results: Compared with districts, new areal units showed a reduction in geographic variation. Extremal quotients and inter-decile ratios for the eight procedures were lower in new areal units. While the coefficient of variation was lower for most procedures in new areal units, the pattern of change of the systematic component of variation between districts and new areal units differed among procedures. Conclusions: Geographic variation in medical service utilization could vary according to the geographic unit of analysis. To determine how geographic characteristics such as population size and number of geographic units affect geographic variation, further studies are needed.

A Bibliographieal Study on the Main Dishes (주식류(主食類)의 문헌적(文獻的) 고찰(考察) -(1670년${\sim}$1943년에 발간된 우리말 조리서를 중심으로)-)

  • Jang, Hae-Jin;Lee, Hyo-Gee
    • Journal of the Korean Society of Food Culture
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    • v.4 no.3
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    • pp.201-211
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    • 1989
  • In this treatise, the kinds of main dishes and the frequency of them, and the materials, the variation of recipe, the measuring units, the cooking utensils, and the measuring terms, which used for making main foods were studied from the books published from 1670 to 1943 in Korea. 1. Main dishes were classified as Bap, Zook: Am-Zook, Mee-Um: Yue-Yi: Won-Mi, Guck-Soo: Naeng-Myun, Man-Doo: Duck-Guk: Soo-Jae-Bee. 2. There were 115 kinds of main dishes including 21 kinds of Bap and Yack-Bap, and 34 kinds of Zook and Am-Zook, 11 kinds of Mee-Um, Yue-Yi and Won-Mi, and 21 kinds of Man-Doo, Duck-Guk and Soo-Jae-Bee. 3. There were 41 kinds of measuring units used for making main dishes including 17 kinds of volume units, 3 kinds of weight units, 14 kinds of quantity units, 4 kinds of units for length, thickness, and 3 kinds of the others. 4. There were 62 kinds of cooking utensils among which Ssot (iron-pot) was the most widely used, but nowadays the most of them were rarely used due to automatization and mechanization of living tools. 5. All cooking terms were 148 kinds including 52 kinds of terms for the preparing process, 24 kinds of terms for the mixing process, 30 kinds of terms for the making-shape process, 18 kinds of terms for the heating process, 16 kinds of terms for the chopping process, and 8 kinds of terms for the setting process.

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On Assessing Inter-observer Agreement Independent of Variables' Measuring Units

  • Um, Yong-Hwan
    • Journal of the Korean Data and Information Science Society
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    • v.17 no.2
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    • pp.529-536
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    • 2006
  • Investigators use either Euclidean distance or volume of a simplex defined composed of data points as agreement index to measure chance-corrected agreement among observers for multivariate interval data. The agreement coefficient proposed by Um(2004) is based on a volume of a simplex and does not depend on the variables' measuring units. We consider a comparison of Um(2004)'s agreement coefficient with others based on two unit-free distance measures, Pearson distance and Mahalanobis distance. Comparison among them is made using hypothetical data set.

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