• 제목/요약/키워드: Draw-off

검색결과 60건 처리시간 0.026초

급수기구 발생음의 실험실 측정방법 제2부 : 수도꼭지와 혼합꼭지의 부착방법 및 작동조건 (Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 2: Mounting and operating conditions for draw-off taps and mixing valves)

  • 정갑철;양관섭;김선우
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2003년도 추계학술대회논문집
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    • pp.861-863
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    • 2003
  • The method of measurement for laboratory tests on noise emission from appliances and equipment used in water supply installations is specified in ISO 3822-1. This part of standard gives detailed descriptions for mounting and operating draw-off taps and mixing valves in such laboratory test. Draw-off taps and mixing valves are the most common kind of appliance used in water supply installations.

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교내 실습실의 유니트체어의 수관관리에 관한 융합연구 (A Convergence Study on Waterline Management of Unit Chair in Dental Hygiene Laboratory)

  • 최정옥
    • 한국융합학회논문지
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    • 제10권10호
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    • pp.27-31
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    • 2019
  • 본 연구의 목적은 교내 실습실의 유니트체어 수관의 바이오필름을 채취하여 미생물을 분석하고, 기존적인 물빼기방법과 소독제를 사용하는 방법을 적용하여 미생물 수의 변화를 비교하고자 실시하였다. 교내의 수관으로부터 샘플을 채취한 후 R2A배지를 이용하여 배양하였다. 미생물 동정을 거쳐 분리된 미생물의 균종을 분석하였다. 물빼기에 대한 미생물 감소를 확인하기 위해 30초, 60초, 120초 간격으로 샘플을 채취하였고, 소독제의 효과를 확인하기 위해 소독 후 샘플을 채취하였다. 이렇게 수거된 샘플을 통해 얻은 미생물의 정량적 비교는 SPSS 프로그램을 이용하였다. 결과에서 동정된 균주는 총 8개로 나타났으며 대부분 그람음성인 Sphingomonas 계열로 확인되었다. 60초의 물빼기를 통해 미생물의 수가 급감하는 것을 확인하였고, 소독 즉시 미생물은 검출되지 않았다. 본 연구에서 제시된 방법과 결과를 바탕으로 소홀하게 관리될 수 있는 유니트체어의 수관을 관리함으로써 교차 감염을 예방하고 체계적인 관리가 가능할 것이다.

인터넷 쇼핑몰의 온라인.오프라인 균형전략에 대한 연구 (Balancing Shopping Mall Strategies on the On-line vs. on the Off-line)

  • 조남재;박상혁
    • 정보기술과데이타베이스저널
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    • 제7권1호
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    • pp.83-97
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    • 2000
  • Internet-based retail business spreads rapidly in Korea. Companies are trying to develop and use various strategic capabilities. The strategies employed by those companies include activities related to the design of shopping sites, market positionsing, facilitation of purchasing process, payment mechanism, and the provision of various consumer services. However, the success of these strategies depends on various environmental factors and internal capability of the companies. Especially, balancing activities performed on-line with those performed off-line is suggested to be essential. In this study, we examined three successful Internet shopping mall companies and compared them to draw useful guidelines for balancing shopping mall strategies - on - line vs. off - line. These three companies were selected because they are all considered sucessful by now, but brought different backgrounds.

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미국 네브라스카주립대학의 하우징 페어와 캠퍼스 주변 학생주거에 관한 연구 (A Study on the Housing Fair and Student Housing of Off-UNL campus)

  • 최장순
    • 한국농촌건축학회논문집
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    • 제16권2호
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    • pp.9-18
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    • 2014
  • UNL housing fair started 14 years ago and is hosted by the Daily Nebraskan. An annual event, the housing fair is expected to draw anywhere between 500 and 1,000 UNL students according to Daily nebraskan. It's manager coordinates with sponsors to determine each company's ad campaign for the every semester. Sponsors generally find the housing fair an effective tool because it brings them face-to-face with students especially inclined to seek out new living options. So this study is to analyse UNL housing fair to provide students potions. Students can learn about places to live off-campus by attending UNL housing fair. When housing fair is opened by Daily Nebraskan, the place is abuzz with students investigating off-campus living options. In addition, property management companies also are available to inform students of their policies and practices. Also this study is to analyse the housing life of UNL off-campus students. Therefore this study has been focused on the surrounding residential areas, their apartment sites and their apartments for UNL students.

한국 금융구조형 전자화폐 모델에 대한 연구 (Study of Electronic Money for Korean Finantial Situation)

  • 최승우;김용득
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2001년도 하계종합학술대회 논문집(5)
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    • pp.173-176
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    • 2001
  • In this treatise information communication indust based change phenomenon of payment system of money explain and study and compare way ago value that use electronic comnunity of the world and presented correct electron money model in real condition of our country. Draw payment way that consider particular situation and korean situation and that wi introduce electron money model of the world and analyze merits and demerits and is money here upon. Electron money introduction of smart card way that support all off-line and on-line that I currency and the nearest topology here direction must is insisting and relate in use of this or presenting value of money flowchart and draw the validity and hangup by introducing electronic mono model who is presenting in Kyong-gi Province and Su-won current and go forward group. Proposed suitable electron money system in Korea situation by proposing money form and model of payment system that can satisfy all this at 1 situation and physical special quality of mon by conclusion and clarify flow of the value.

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곡류단절지에 입지한 마을의 경관특성 -삼지마을을 사례로- (The Landscape Characteristics of Village Located in the Meander cut-off Area -The Case of Samji Village-)

  • 임의제;최기수
    • 한국조경학회지
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    • 제28권2호
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    • pp.108-121
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    • 2000
  • This study seeks what kind of factors influence to locate dwellings and to establish scenic spots in nature by a case study focused on a meandering stream. The study specially concentrates on the interrelationship between both residences and beautiful sceneries and a meander cut-off-area that reveals a special topographical characteristics, located at Samji village in Youngyang-eup, Youngyang-gun, Koungsangbuk-do. The meander cut-off area, developed at the middle or upper reaches of a river, often makes up specific landscapes such as precipitous cliffs, sheer cliffs and caves. And the area where is specially created by sudden change of flow due to erosion ;perceived by the cut surface to be the most beautiful scenic spot. These beautiful landscapes were used to be called as Dae, Dam or Gul and managed by Confucian scholars who enjoy refined taste and devote themselves to the study in nature. Moreover, the Ku-Hado-literary means the area of ex-flow-made the scholars' lving with a well prepared basis for agriculture where supplied a cornucopia of organic matters and water. The merit of agriculture made it possible that the scholars became economically independent, and the fact might be the essential point why the meander cut-off area took noticed. Actually, Cho-family has been in Smaji Village for generations, producing a large number of scholars and keeping the actual power of the region. The physical shape of the meander cut-off area, cozily surrounded by mountains, is considered as a good place for the dwelling due to the influence of traditional sight of view for location and P'ungsuchiri which is known as Feng Shui in China and geomancy in the western world. It is a fruit in it own way that we could find the ancestors' discernment and wisdom from this study, who have lived their lives adapting themselves to the given natural environment and also utilizing the nature wisely. But this is a current-argued study on the meander cut-off area. Follow-up studies have to be continued about the landscapes of the meander streams and the meander cut-off areas scattered all over the country except Samji Village and draw the characteristics from the comparative analysis.

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Switching Characteristics of Amorphous GeSe TFT for Switching Device Application

  • 남기현;김장한;조원주;정홍배
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2012년도 제42회 동계 정기 학술대회 초록집
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    • pp.403-404
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    • 2012
  • We fabricated TFT devices with the GeSe channel. A single device consists of a Pt source and drain, a Ti glue layer and a GeSe chalcogenide channel layer on SiO2/Si substrate which worked as the gate. We confirmed the drain current with variations of gate bias and channel size. The I-V curves of the switching device are shown in Fig. 1. The channel of the device always contains amorphous state, but can be programmed into two states with different threshold voltages (Vth). In each state, the device shows a normal Ovonic switching behavior. Below Vth (OFF state), the current is low, but once the biasing voltage is greater than Vth (ON state), the current increases dramatically and the ON-OFF ratio is high. Based on the experiments, we draw the conclusion that the gate voltage can enhance the drain current, and the electric field by the drain voltage affects the amorphous-amorphous transition. The switching device always contains the amorphous state and never exhibits the Ohmic behavior of the crystalline state.

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아므르불가사리(Asterias amurensis)의 배우자를 이용한 남해해역 연안해수의 생물학적 수질평가 (Biological Evaluation of off-shore Water Quality in Southern Coastal Waters with Asterias Aurensis Gametes)

  • 유춘만;박지인;조기안;주현수;박종천;나명석
    • 한국환경과학회지
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    • 제8권1호
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    • pp.1-6
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    • 1999
  • This study was carried out to evaluate off-shore water quality and to draw marine pollution map to Southern sea in Korea by bioassay using gametes and early development system of Asterias amurensis. From the bioassay, it was determined that the water qualites of Southern sea maintained the grade II, because development of A. amurensis were moderately inhibited. However, Sunchon, Kwangyang, and Jinhae Bay belonged to grade III, because development of A. amurensis were strongly inhibited. This could be due to the inflows of several river systems and poor water circulation. The water quality at Yosu island was the grade I, because A. amurensis were not inhibited in its early development.

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New Calendar, Old Social Class, and Buddhist Tradition: A Case Study of Wekmasuk Wundauk U Latt and His Family Members

  • Oo, Myo
    • 수완나부미
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    • 제12권1호
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    • pp.131-142
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    • 2020
  • This article explored how the introduction of the Gregorian calendar transformed the Buddhist traditional practices of a noble class family who lost power in the royal court during the emergence of the British in Upper Myanmar. It examined in micro-level, the said changes by way of Wekmasuk Wundauk U Latt's diary, which recorded the social and economic conditions of Mandalay, then the capital of the Myanmar kingdom, from 1886 to 1898. When Burmese kings reigned in Mandalay, the court closed on Sabbath day, when the Buddhist Burmese went to monasteries to fulfill religious obligations. The introduction of the Gregorian calendar turned Sunday into a regular day off, which left Sabbath day to be used for more work. This prevented the then noblemen to attend to monastic duties as they had to use the day, for example to go to the bank to draw their pension. This research reveals that the Gregorian calendar has transformed the day off from "holy day" to "holiday."

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A study on Development of Footwear Shape Scanner for Off-Line Robot Path Programming

  • Lho, Tae-Jung;Song, Se-Hoon;Ju, Hyun-Woo;Lee, Jung-Wook;Cho, Jae-Kung;Ahn, Hee-Tae
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.808-812
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    • 2003
  • We need a lot of manpower and we can cut down a labor cost by applying industrial robots the footwear bonding automation process. In this study, we suggest how to program off-line robot path along a shoe's outsole shape in the footwear bonding process by 5-axis microscribe system like robot arms. This microscribe system development consists 5-axis microscribe mechanics, signal processing circuit, and PC with software. It is the system for making database of a shoe's outsole through the movement of a microscribe with many joints. To do this, first read 5-encoders' pulse values while a robot arm points a shoe's outsole shape from the initial status. Then, calculate a relative shoe's outsole by Denavit-Hatenberg's (D-H) direct Kinematics of known length of links and coordinate values. Next, calculate the encoders' pulse values of the robot arm's rotation and transmitting the angle pulse values to the PC through a circuit. Finally, it is able to display a shoe's outsole at real-time by computing the Denvavit-Hantenberg's (D-H) direct kinematics in the PC. With the coordinate values calculated above, we can draw a bonding gauge-line on the upper. Also, we can make off-line robot path programming compute a shoe's bonding area on the upper. These results will be effectively applied for programming a robot path on off-line and automatically.

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