• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 A
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• pp.278-281
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• 1995

In this paper, a instantaneous speed measurement methode using a three phase sinusoidal taco-generator is described and it's simulations are developed. The proposed methode can easily detect the motor speed by using that the output voltage of taco-generator is propotion to the motor speed. Because the proposed methode consists of some calculation, the proposed system can be implemented with analog devices or micro processor conveniently. From the simulation resualts, the proposed measurement methode can acculately detect the real motor speed over wide range.

• 건축사
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• 통권639호
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• pp.102-103
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• 2022

• 한국주거학회논문집
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• 제13권1호
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• pp.29-36
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• 2002

This study was performed to investigate the awareness of Namak Eco-city, a willingness to move to an ecological city and their related variables. Data was collected through a questionnaire survey given to 491 residents who live in Mokpo, Kwangju and Muan in Chollanam Province. The awareness of Namak Eco-city was medium level and half of the respondents were not aware of that. Multiple regression analysis was conducted to estimate the effects of the variables on the awareness of Namak Eco-city. The most significant variable was the awareness of taco-city. Thirty eight percent of the respondents were willing to move to Namak Eco-City. Two variables were related with willingness to move to the city. Those who were aware of an Eco-city and had more commuting-oriented housing value had more willingness to move to the city.

• 한국정보통신학회논문지
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• 제5권3호
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• pp.563-572
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• 2001

기중기에 사용되는 모터는 모터의 회전수를 제어하기 위하여 타코제너레이터를 사용한다 타코제너레이터는 커플링을 통하여 모터와 연결되어 있으며, 모터가 회전하는 동안 커플링이 마모되어 기중기에 고장을 일으키는 요인이 되고 있다. 본 논문에서는 기중기의 고장을 감소시키기 위하여 모터 의 회전수를 전압으로 변환하는 변환기를 설계한다. 이 장치는 로타리엔코더, 회전수를 계산하는 속도 측정부, LCD 표시부 및 모터의 방향판별회로로 구성된다. 모터의 회전수-전압 변환장치는 모터의 회전수를 측정하여 RPM으로 표시하고, 모터가 6。 회전 후에 모터의 방향을 판별할 수 있다. 그리고 모터가 제한속도를 벗어나면 위험신호를 발생하는 신호와 회전방향을 전압으로 나타내는 신호를 가지고 있어 모터의 비정상적인 동작을 즉시 감지하여 주제어기에 전달한다. 구현된 변환장치는 모의실험과 실험을 통하여 기중기에서 타코제너레이터의 기능을 잘 수행하고 있음을 확인하였다.

• 한국임상수의학회지
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• 제34권5호
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• pp.356-358
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• 2017

A dog (neutered male Schnauzer, 11 years old, 8 kg) presented with recurrence of immune-mediated hemolytic anemia. Rapid whole blood transfusion was initiated, and then sudden tachycardia and dyspnea were observed. Invasive arterial blood pressure, arterial blood gas analysis, and thoracic radiograph indicated transfusion-associated circulatory overload (TACO). Persistent high blood pressure of 160-205 mmHg was observed; the thoracic radiograph revealed interstitial infiltration and a fissure line, which suggested pulmonary edema and pleural effusion. Despite furosemide administration and nasal oxygen supplementation, hypertension and respiratory distress were not completely controlled. Finally, cardiac arrest occurred and the patient expired due to TACO 24 hours after the transfusion.

• 농업과학연구
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• 제46권4호
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• pp.941-953
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• 2019

Biodiesels are being explored as a clean energy alternative to regular diesel, which causes pollution. In this study, the optimum conditions for producing biodiesel (BD) by combining beef tallow, an animal waste resource with a high saturated fatty acid content, and corn oil, a vegetable oil with a high unsaturated fatty acid content, were investigated, and the fuel properties were analyzed. Furthermore, Multivariate Analysis of Variance (MANOVA) was used to verify the optimum conditions for producing biodiesel. The influences of control factors, such as the oil blend ratio and methanol to oil molar ratio, on the fatty acid methyl ester and biodiesel production yield were investigated. As a result, the optimum condition for producing blended biodiesel was verified to be tallow to corn oil blend ratio of 7 : 3 (TACO7) and a methanol to oil molar ratio of 14 : 1. Moreover, the interaction between the oil blend ratio and the methanol to oil molar ratio has the most crucial effects on the production of oil blended biodiesel. In conclusion, the analysis results of the fuel properties of TACO7 BD satisfied the BD quality standard, and thus, the viability of BD blended with waste tallow as fuel was verified.

• 한국유기농업학회지
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• 제9권4호
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• pp.95-111
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• 2001

To carry out the Integrated Fruit Production(IFP), researches on cover crops as well the Integrated Pest Management(IPM) and the Integrated Nutrition Management(INM) should be very important. These concepts are neither clear nor connective till now. The researches on cover crops in Europe and USA are being kept within the category of IFP. Main researches on fruit trees for sustainable agriculture in Italy are new variety creation, development of growing techniques, pest and disease control, and cover crops management, etc. It is necessary of fruit industry in Korea to maintain good quality and taco-friendly fruit production. For this goal, we need international cooperation with highly developed countries in Europe. In first step, we should enlarge research areas and analyze results obtained to get farmers understood the concept of cover crop growing, Furthermore, we make researches more profoundly on cover crops growing considering tree age, mixing rates among cover crops, seeding and cutting time for cover crops, and so on. Researchers, specialists of agricultural extensions, and farmers should concentrate their opinions and conduct IFP together. The IFP should go on systematically and reach finally to get certificates internationally by the International Organization for Biological and integrated Control of Noxious Animals and Plants(IOBC) to enhance selling and exporting fruits.

• 한국조명전기설비학회지:조명전기설비
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• 제6권2호
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• pp.56-61
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• 1992

유도 전동기의 일정자속 벡터제어에서 유도전동기의 속도를 별도의 속도검출장치가 없이, 전동기의 속도를 1차측 전압과 전류 및 전동기정수에 의하여 추정하는 방법을 제시하고 전류추종형 PWM인 버터에 의하여 구동 시스템을 구성하였다. 모든 연산 및 제어회로를 마이크로프로세서에 의하여 보다 간단하게 실현시켜 유도전동기의 가변속 구동특성을 컴퓨터 시뮬레이션과 실험에 의하여 조사하였다. 속도검출장치를 이용한 경우와 연산회로에 의하여 계산된 경우의 입력 전류파형상의 차이를 조사한 결과 미소한 리플성분을 제외하고는 잘 일치하였으며, 기동 및 가감속시의 속도추종특성도 시뮬레이션의 결과와 함게 양호하게 얻어졌다.

• 대한가정학회지
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• 제39권6호
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• pp.109-122
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• 2001

This study was performed to identify the roles of residents for the environmentally sound and sustainable development, taco-polis(kologisches Bauen), eco-village and Symbiotic Housing. These buildings will achieve energy efficiency through design strategies such as passive solar heating system, natural cooling and day lighting. Their infrastructure will feature parking on the periphery, extensive pedestrian paths, outdoor ground lights that preserve stellar visibility, and environmentally sensitive technologies such as low writer use fixtures. And they will restore biodiversity while protecting the wildlife, wetlands, forests, soil, air and water. Their houses wile be designed to support home-based occupations, offering high-speed Internet access and other options to promote a localized, sustainable economy. To support and encourage the evolution of sustainable settlements, it is necessary to prepare constructing the physical facilities and the social functions relating with residents. The roles of residents are important to provide a high Quality lifestyle and to integrate a supportive social environment with a low-impact way of life. This study concluded the four main roles of residents for the sustainable of Eco-polis and Ecovillage. 1. Residents assist transition towards a sustainable society as eco-conscious consumers in the planning stage. 2. Residents live in a ecological way for the sustainable ecovillage. 3. Residents exchange information and education for increasing the community glue as a communication network. 4. Residents support and transmit their cultural vitality and tradition for the next generation. So, users are expected to encourage resident's participation in the planning, design, ongoing management and maintenance of the sustainable ecovillage.

• 한국수자원학회논문집
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• 제34권4호
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• pp.365-379
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• 2001

본 연구는 사다리식 어도에서 회유성 어류의 소상능력을 평가하기 위한 것으로서 은어와 송어를 대상으로 하여 생태수리실험을 실시한 것이다. 생태수리실험의 결과를 바탕으로 하여 하천에서 회유성 어류의 이동환경을 분석하였다. 사다리식 어도에서 회유성 어류의 소상능력에 영향을 미치는 주요 인자는 어도의 유량, 어도경사, 어도입구부의 어도와 하상 사이의 낙차이다. 사다리식 어도에서 은어의 소상은 주어진 유량에 대하여 어도경사에 좌우되고, 송어의 소상은 주어진 어도경사에서 유량에 영향을 많이 받는다. 산천어는 소하성이 거의 상실된 것을 실험을 통하여 확인할 수 있었다. 사다리식 어도에서 은어와 송어의 소상수리영역을 무차원 인자 F(sub)f 와 H(sub)h 에 따라서 설정할 수 있었다. 우리나라 동해안지역에 설치된 사다리식 어도의 소상기능은 어도의 최대경사가 매우 급하기 때문에 충분히 발휘되지 못하고 있다.