• Title/Summary/Keyword: Measuring unit

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The Design of an Automatic System for Dairy Cattle Breeding I - The Choice of Temperature Sensor for Body Temperature Measuring - (낙농의 자동화 시스템 구성 I - 체온 감지 온도센서의 선정 -)

  • 김형주;정길도;한병성;김용준;김동원;김명순
    • Journal of Biosystems Engineering
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    • v.23 no.1
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    • pp.83-90
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    • 1998
  • In this paper the automatic system for dairy cattle has been desisted such as body temperature measuring unit, feed supplying unit and temperature control unit. Since e disease is strongly related to the body temperature of cattle, early detection of the abnormal temperature would prevent the severe problems which nay occur in dairy farms. An electronic component AD590J is used as temperature sensor for the system, The device is highly robust against the noise since the output signal is the current so it can be applied to a long distance sensing The resolution of signal is 0.1$^{\circ}C$ and the current is 10㎷ Also 12-bit A/D converter is desisted fir interfacing the sensor with a one-chip microprocessor. A temperature measuring experiment using the developed system has been done for measuring the temperature of human beings and the system was proven to be useful for measuring the body temperature of dairy cattle properly. A geared AC motor is used for the feed supplying unit The heater and fm are used as temperature control unit. The feed supplying unit and temperature control unit are well operating in the laboratory experiment.

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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 Field Measuring Study on the Thermal Environment of Human Surrounding in the Classroom Equipped with Ceiling Unit (천장형 유닛을 설치한 교실 내의 인체 주변 온열환경에 관한 실측연구)

  • Cho Sung-Woo;Im Young-Bin;Lee Kyung-Hee
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.18 no.3
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    • pp.240-246
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    • 2006
  • This paper performed to investigate on vertical temperature distribution, effective draft temperature (ETD) and PMV (Predicted Mean Vote) in the classroom, which is located YangSan city (Kyungsangnam-Do), Korea, is equipped with ceiling unit. The vertical temperature difference between F.L+10 cm (ankle) and F.L+120 cm (neck) of a measuring point which is adjacent corridor in the classroom showed about $1^{\circ}C$ but of measuring point which is adjacent outdoor expressed up to $4^{\circ}C$, The effective draft temperature (ETD) is -2.3 and -0.52 and 0.67 at near ceiling unit but is 1.2 and 3.3 at far from ceiling unit. The PMV of total classroom showed the range of 'Cold' and 'Slightly Cold.' Therefore, to achieve comfort condition in the classroom is equipped with ceiling unit, the location of ceiling unit and discharge angle and discharge distance from ceiling unit are very important elements.

Implementation of Measuring Modules & Data Processing Unit for Unmanned Remote Supervisory System (무인 원격감시 시스템용 계측 모듈 및 데이터 처리장치의 구현)

  • Park, Jung-Hoon;Hong, Sung-Hoon;Seo, Kang-Myun;Kang, Moon-Sung
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2209-2211
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    • 2001
  • Unmanned remote supervisory system consists of data processing unit and measuring systems-temperature measuring module, humidity measuring module and human body sensing module. The data processing unit to collect and process informations of each measuring modules has functions of data communication between a mobile cellular-telephone and measuring systems.

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New Metric For Short-Range Uniformity of AMOLEDs

  • Arkhipov, Alexander;Lee, Baek-Woon;Park, Kyong-Tae;Kim, Chi-Woo;Lee, Jin-Seok
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.488-491
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    • 2008
  • The variations of the TFT characteristics in AMOLEDs result in the decrease of the uniformity of the displays. Measurement of the long-range uniformity (LRU) is straightforward. However, there is no method for measuring the short-range uniformity (SRU) yet. Quantifying the SRU is important in evaluating various TFT backplanes and compensation circuits. We propose new methods for measuring SRU.

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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 Comparison of Noise Level by Noise Measuring Methods (소음측정방법에 따른 평가소음도 비교)

  • Shim, Chur Goo;Roh, Jae hoon;Park, Jung Gyun
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.5 no.2
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    • pp.128-136
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    • 1995
  • The purpose of this study is to evaluate the difference of noise level according to noise measuring methods in the noisy working environments. Sound pressure level(SPL), equivalence sound level(Leq) and personal noise exposure dose(Dose) in the fifty-nine unit workplaces of the twenty-eight industries were measured and relating factors which were affected noise level were investigated. The results were as follows ; 1. The noise levels were $88.70{\pm}5.68dB(A)$ by SPL, $89.07{\pm}5.41dB(A)$ by Leq and $89.07{\pm}5.69$ by Dose. The differences of noise levels by three measuring methods were statistically significant(P<0.001) by repeated measure ANOV A. 2. Comparing with noise levels by general classes of noise exposure, noise levels of continuous noise were $89.14{\pm}5.19dB(A)$ by SPL, $89.45{\pm}4.65dB(A)$ by Leq and $90.04{\pm}5.09$ by Dose. Noise levels of intermittent noise were $87.90{\pm}6.52dB(A)$ by SPL, $88.40{\pm}6.63dB(A)$ by Leq and $90.10{\pm}6.80$ by Dose. The differences noise level of noise measuring methods by general classese of noise exposure were statistically not significant by repeated measure ANOV A. 3. Interaction between general classese of noise exposure and noise measuring methods for noise level was not statistically significant by repeated measure ANOVA. And the noise level by noise measuring methods were statistically significant by repeated measure ANOV A(P<.001) 4. Comparing with noise levels by unit workplace size, noise levels of large unit workplace were $90.73{\pm}5.87dB(A)$ by SPL, $91.32{\pm}5.50dB(A)$ by Leq and $91.82{\pm}6.06$ by Dose and noise levels of middle unit workplace were $88.31{\pm}5.26dB(A)$ by SPL, $88.41{\pm}4.83dB(A)$ by Leq and $89.69{\pm}5.05$ by Dose. And noise levels of small unit workplace were $94.89{\pm}4.10dB(A)$ by SPL, $85.35{\pm}4.11dB(A)$ by Leq and $86.87{\pm}4.98$ by Dose. The noise level differences of noise measuring methods by unit workplace size were statistically significant by repeated measure ANOV A(P<.05). 5. The noise level by noise measuring methods were statistically significant by repeated measure ANOV A(P<.001). But Interaction between workplace size and noise level measuring methods for noise level was not statistically significant by repeated measure ANOVA. According to the above results, there was a difference of the noise level among the three measuring methods. Therefore we must use the personal noise exposure dose using by noise dose meter, possible, to prvent occupational hearing loss in noisy working environment.

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A Basic Study of Cane To Assist Blind Walker with ultrasonic Sensor (초음파 센서를 이용한 시각장애자용 보행유도 지팡이에 관한 기초연구)

  • Kim, S.Y.;Kim, D.W.
    • Proceedings of the KIEE Conference
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    • 2002.11c
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    • pp.411-413
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    • 2002
  • In this paper we researched about the ultrasonic cane which aids the blind to walk. We used ultrasonic in recognizing the object and implemented pulse counting method in measuring the distance. The distance measuring system consists of transmitter unit, receiver unit and micro-processor. We used broadband ultrasonic sensors in transmitter unit and receiver unit. The blind is able to recognize the distance between obstacles and himself as it used a vibration system.

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Measurement of 3D Spreader Position Information using the CCD Cameras and a Laser Distance Measuring Unit

  • Lee, Jung-Jae;Nam, Gi-Gun;Lee, Bong-Ki;Lee, Jang-Myung
    • Journal of Navigation and Port Research
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    • v.28 no.4
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    • pp.323-331
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    • 2004
  • This paper introduces a novel approach that can provide the three dimensional information about the movement of a spreader by using two CCD cameras and a laser distance measuring unit in order to derive ALS (Automatic Landing System) in the crane used at a harbor. So far a kind of 2D Laser scanner sensor or laser distance measuring units are used as comer detectors for the geometrical matching between the spreader and a container. Such systems provide only two dimensional information which is not enough for an accurate and fast ALS. In addition to this deficiency in performance, the price of the system is too high to adapt to the ALS. Therefore, to overcome these defects, we proposed a novel method to acquire the three dimensional spreader information using two CCD cameras and a laser distance measuring unit. To show the efficiency of proposed method, real experiments are performed to show the improvement of accuracy in distance measurement by fusing the sensory information of the CCD cameras and a laser distance measuring unit.

Implementation of Unmanned Remote supervisory System having Multipurpose Measuring Modules

  • Park, Jung-Hoon;Hong, Sung-Hoon;Kang, Moon-Sung
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.132.1-132
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    • 2001
  • In this paper, we have studied for development of unmanned remote supervisory system using mobile communication network, not wire network, not to be affected by space or distance. The unmanned remote supervisory system consists of data processing unit main part and measuring systems (modules part)-temperature measuring module, humidity measuring module and human body sensing module. The data processing unit to collect and process informations of each measuring module has the functions of data communication between a mobile cellular telephone and measuring systems. Each measuring module has supervisory and warning functions for a target of supervision. And then we have designed each system and evaluated accuracy and reliability of the combined total system.

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