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박태식,김성환,김남정,유지윤,박귀태,Park, Tae-Sik,Kim, Seong-Hwan,Kim, Nam-Jeung,Yoo, Ji-Yoon,Park, Gwi-Tae 한국전기전자학회 1997 전기전자학회논문지 Vol.1 No.1
The purpose of this paper is to realize robust vector control of an induction motor without speed sensor. In order to do it, the speed of an induction motor is estimated using model reference adaptive system(MRAS) and two rotor flux observers which have robustness to the parameter variation are employed as the reference model and the adjustable model in MRAS speed estimator. The MRAS-based overall control scheme has been implemented on 2.2kW induction motor control system and it is verified that the proposed speed sensorless control scheme is more stable and robust than the conventional schemes. 본 논문의 목적은 유도 전동기의 속도 센서 없는 견실한 벡터 제어의 구현에 있다. 이를 위해 MRAS(Model Reference Adaptive System)를 사용하여 유도 전동기의 속도를 추정하였고 파라미터 변동에 견실한 두 개의 회전자 자속 관측기를 설계하여 MRAS 속도 추정기에 기준 모델과 추정 모델로 사용하였다. MRAS에 근거를 둔 전체 제어 기법은 2.2kW 유도 전동기의 벡터 제어 드라이브를 사용하여 실현되었으며, 본 논문에서 제한한 속도 센서 없는 벡터 제어 기법이 기존의 속도 센서 없는 제어 기법에 비해 보다 안정하고 견실함을 증명하였다.
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환경개선을 위한 녹화수목재배의 (綠化樹木裁培) 현황 및 경영분석과 전망
박태식,김태욱 ( Tai Sik Park,Tae Wook Kim ) 한국산림과학회 1977 한국산림과학회지 Vol.34 No.1
The study was made to give some helpful information for policy-making on ornamental tree cultivation by doing a survey on general situations, management analysis, and future prospects of the ornamental tree growing. The study was carried out through literature studies related to the subject, questionaire surveys, and on-the-spot investigation. The questionaire surveys could be divided into two parts: pre-questionaire survey and main-questionaire survey. In the pre-questionaire survey, the researchers intended to identify the total number of ornamental tree growers, cultivation areas in size and their locations. The questionaires were sent to each town and county administration authorities, forest cooperatives, and related organizations through-out the nation. The main-questionaires were prepared for detailed study and the questionaires were sent to 200 tree growers selected by option by taking considerations of the number of tree growers and the size of cultivating areas in regions. The main findings and some information obtained in the survey were as follows: 1. The total land for ornamental tree growing was amounted to 1,873.02 hectares and the number of cultivators was totaled to 2,717. 2. The main occupations of the ornamental tree growers were found in horticulture (41.9%), agronomy (25.9%), officialdom (11.3%), animal husbandry (6.5%), business circle(4.8%), and forestry (3.2%) in sequence. 3. The ornamental trees were cultivated mostly upperland (54.8), forest land (19.4%), rice paddy (11.3%) and others. 4. The educational training of the tree growers seemed quite high. The results of the survey indicated that a large number of tree growers was occupied by college graduates (38.7%), and then high school graduates (34.7%), middle school graduates (12.9%) in order. 5. The tree farming was undertaken as a side-job (41.9%) rather than main-job (23.4%), but a few of respondents rated as subsidiary-job (18.6%). 6. The management status classified by the rate of hired labors used was likely to belong to three categories: independant enterprise management (41.9%); half independant management (31.5%); and self-management (32.4%). 7. The majority of the tree growers sold their products to the consumers through middle-man channel (48.4%), or directly to the house-holder and detailers (13.7%), but a few of the respondents answered that they disposed of their products by bidding (11.2%) or by direct selling to the contractors (4.8%). 8. The channel cf marketing seemed somewhat complicated. The results of the survey were as : (1) producers -$gt;consumers (22.6%) (2) producers -$gt;field middle-men-$gt;consumers (33.1%) (3) producers -$gt;field middle-men-$gt;first stage brokers-$gt; consumers (15.3%) (4) producers -$gt;field middle-men-$gt;second stage middle-men-$gt;brokers-$gt;consumers (5.7%) (5) producers -$gt;field middle-men-$gt;third stage middle-men-$gt;second stage middlemen-$gt;brokers-$gt;consumerd (4.8%) 9. It was responded that the margin for each stage of middle-men or brokers was assumed to be 30-50%(33.1%), 20-30%(32.3%),50-100%(9.7%), and 100-200%(2.4%) in sequence. 10. The difference between the delivery price of consumers and field selling price of the producers seemed quite large. Majority of producers responded that they received half a price compared to the consumers prices. 11. About two thirds of the respondents opposed to the measure of $quot;Law on Preservation and Utilization of Agricultural Land$quot; in which says that all the ornamental trees grown on flit agricultural lards less than 8 degrees in slope must be transplanted within three years to other places more than 8 degrees in slope. 12. The tree growers said that they have paid rather high land taxes than they ought to pay (38.7%), but come responded that land tax seemed to be appropriate (15.3%), and half of the respondents answered $quot;not known$quot;. 13. The measures for the standardization of ornamental three by size we
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A Clinical Effect of Electro-Acupuncture Stimulation Therapy on TMD Patients
박태식,박준상,고명연,Park, Tae-Sik,Park, June-Sang,Ko, Myung-Yun The Korean Academy of Orofacial Pain and Oral Medi 2000 Journal of Oral Medicine and Pain Vol.25 No.3
측두하악장애의 치료에 이용되는 저주파 전자침 자극요법의 임상적 효과를 평가하기 위하여 치료를 시행한 28명과 치료를 전혀 시행하지 않은 10명의 대조군을 대상으로 치료전과 치료 2주 후에 경혈점의 압력통각역치와 임상지수를 측정하여 다음과 같은 결론을 얻었다. 1. 환자군에서 저주파 전자침 자극요법을 시행하기 전과 후의 임상지수가 유의하게 변화하였다(P<0.001). 2. 환자군에서 저주파 전자침 자극요법을 시행하기 전과 후의 압력통각역치는 G2, G21, Li4, S2, S3, S8, Si19 및 T17에서 유의하게 증가하였다(P<0.05). 3. 대조군에서 임상지수와 압력통각역치는 실험 전후에 차이가 없었다. 4. 환자군의 임상지수가 대조군에 비하여 유의하게 변화하였다 (P<0.05). 본 연구는 저주파 전자침 자극요법의 주관적 뿐만 아니라 임상적인 효과를 보여줌으로써 측두하악장애환자의 치료에서 저주파 전자침 자극요법이 유용한 방법임을 제시하였다.
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우리의 수고와 고생을 기억하시오: 1테살 2,9-12 풀이
박태식(Park, Tae-Sik) 서강대학교 신학연구소 2008 신학과 철학 Vol.- No.13
테살로니카 전서 2장 9-12절의 분석을 통해 바오로의 두 가지 사상, 즉 '자급 선교'와 '사도직 정의'를 살펴보았다. 무릇 사도는 밥벌이에 전전긍긍해서는 안 된다. 언제라도 일을 해서 먹고살 준비가 되어 있어야만 한다. 그리고 외적 권위 따위에 한눈팔지 말고 교우들을 하느님의 나라로 인도하는 데 총력을 기울여야 마땅하다. 바오로의 소신과 순수함은 세계화되어 가는 과정에 놓여있던 그리스도 교회의 청량제 역할을 했다. 하지만 그 후로 교회의 모습은 많이 달라졌다.사목자들은 의례 대가를 받았고 교계 제도도 체계화되었다. 역사가 흐르면서 때로는 필요성에 따라 때로는 인간의 이기심이 발동한 결과이다. 그러나 아무리 오늘날과 당시의 상황에 현격한 차이가 있다고 하더라도 도를 지나쳐서는 곤란하다. 세상이 아무리 바뀌어도 우리의 정신은 여전히 바오로에 머물러 있어야 한다. 겉보기로 교세를 과시하는 시대는 하루빨리 지나가야 한다. The following monograph is about the St. Paul's two Ideas of 'Self-supported Mssionary' and 'Definition of apostle'. The analysis of 1 Thess 2:9-12 is helpful for us to understand his ideas. In the interest of the Gospel, according to St Paul's faith, the apostle should give up the payment and do his best in practice, not depends on the authority. Witii this faith St Paul opened the future of Christianity. It is obvious today that the catholic church must follow and realize the vision of our great apostle St. Paul.
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