• Title/Summary/Keyword: case-controlled study

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Case Study for Interactive Artwork Based on Monophony and Polyphony by Mikhail Bakhtin (인터랙티브 예술 작품에서 바흐친의 단성성과 다성성 사례 연구)

  • Oh, Je-ho
    • The Journal of the Korea Contents Association
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    • v.22 no.8
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    • pp.191-199
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    • 2022
  • This paper proposes a new aesthetic methodology analyzing the objectives and activity of audience members through the application of the concept of monophony and polyphony to interactive artwork. Monophony and polyphony were new methods for analyzing the voices of speakers in literature as Mikhail Bakhtin, a Russian aesthetic theorist, proposed. This paper proposes a new methodology for analyzing structure and the elements of monophony and polyphony in interactive artwork based on previous studies. Through this new methodology, I have analyzed a total of 9 interactive artworks. As a result, I have found detailed elements of monophony and polyphony in those artworks. This paper also proposes new findings: non-controlled types and controlled types appeared in the interactive artwork under the concept of polyphony. Through these new findings, artists and researchers can apply objectives and activities in interactive artwork through the participation of audience members, thereby leading to new aesthetics in interactive artwork.

A Study of Optimization in the Queue, Finite Population (유한모집단 대열기법에 의한 최적화 연구)

  • 오충환
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.1 no.1
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    • pp.37-44
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    • 1978
  • The purpose of this study is to search for an efficient application method in solving delay-phenomenon problems which influence upon total production cost through case study. The method of this study is an experimental study based on cutting time data in lead cutting operations from "Lead Cutting Machine (Stripper)" and its service rate data from a large electronic products company which utilizes conveyor line system for the products "Car Stereo" The procedure of this experimental study is as follows; 1) Using loading(Man-Hour) analysis technique j,1 order to analyse and evaluate Production capacity, efficiency, operation and idle rate assembly charge, waiting and service cost -when its are controlled by stripper operator(server) 2) Establishing adequate waiting time model of finite population caused by the interference of 4 stripper machine which is drawn from mathematical statistics testing, that is, goodness of fit test in the waiting and service rate and to search for optimal solution by utilizing the above mentioned model The experimental result was that amount to 8,546,618won Per year was brought down, that is, by optimum point, it shows a decrease as compared with Present point. The major limitation of this experimental study is that the Queue in the Finite Population, so to speak. it comes from the interference of 4 stripper machine dealt with this case were limited only on the Car Stereo conveyor line. Further study of application of this application method to the areas such as material handling, personnel management marketing and transportation management is strong1y recommended.trong1y recommended.

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Systematic Review of Selection of Acupoints in Domestic Clinical Studies Related to Nuchal Pain (국내 경항통 연구에서의 경혈 선정에 관한 계통적 연구)

  • Lee, Hyung Eun;Lee, Eun Jung;Oh, Min Seok
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.27 no.6
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    • pp.698-704
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    • 2013
  • The purpose of this study is to figure out which acupoints are selected to treat nuchal pain and attempt to analyze the meaning of those acupoints in current clinical trials. We searched ten electronic databases and manually checked related Korean journals and references. We included randomized controlled trials(RCT), clinical controlled trials(CCT), case reports/series, and literature reviews using acupojnts to treat nuchal pain. We investigated the frequency of selected acupoints. We included 31 articles in this study. The most frequently adopted acupoints were GB20(77.41%), followed by GB21(61.29%). In distribution according to meridian system, BL was the most(25.60%), followed by Extra points of Dong-Shi(12.19%). Selected acupoints for treat nuchal pain were considered to be affected by flow of meridian system. It is necessary for more studies to provide clinical guideline of acupoint selection.

Trends of Meridian-Based Psychotherapy - Review of Researches on Emotional Freedom Technique (EFT) (감정자유기법(EFT)의 연구를 중심으로 본 경락기반심리요법의 동향)

  • Kim, Sang Young;Yin, Chang Shik;Choi, In Won;Kim, Jong-Woo
    • Journal of Oriental Neuropsychiatry
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    • v.24 no.spc1
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    • pp.89-100
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    • 2013
  • Objectives : The purpose of this study is to investigate the researches about regarding Emotional Freedom Technique (EFT) and to understand the trends of Meridian-based Psychotherapy. Methods : Every article relevant to EFT was obtained from 'Pubmed' and Korean journal databases. Keywords used for searching included 'EFT' and 'Emotional freedom technique'. Results : 1) 5 reviews, 11 randomized controlled trials, 3 controlled trials, 1 single group comparative study and 4 case studies were searched. 2) Anxiety disorders were most frequently studied with EFT. Other studies included insomnia, depression and pain symptoms. EFT interventions were attempted in many different protocols and assessed with various tools. 3) Review articles indicated that meridian-based psychotherapies, such as EFT, are based on the meridian theory of oriental medicine. They evaluate EFT positively for its effectiveness on psychiatric diseases. Conclusions : EFT is increasingly studied and used in clinical practice of various fields. Objective evaluation tools and standardized intervention protocols are needed for the development of a new guideline for EFT.

A Study on the Environmental control methods Expression in Korean Traditional Residence - Focusing on the courtyard-type - (한국전통 주거건축에 나타난 환경조절방식에 관한 연구 - 중정형을 중심으로 -)

  • Lee, Sun-Min;Hur, Bum-Pall
    • Korean Institute of Interior Design Journal
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    • v.19 no.3
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    • pp.128-135
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    • 2010
  • In this paper, traditional residential architecture in South Korea appear to approach environmental regulation as part of ecological architecture of regional climate controlled environment, according to the characteristics and spatial arrangement, and material to the environment was described as a controlled manner. The scope of this study was not large scale housing construction from traditional chusagotaek, yunjeunggotaek, yangjindang, dokrakdang target was the case. Focusing on examples extracted from Korea first eco-friendly characteristics of traditional residential architecture is an extension of nature to explore space and yard space, and South Korea by way of environmental control that appears in traditional architecture, waterproof, moisture, solar radiation, sunlight, ventilation and air Attributes such as environmental regulation and environmental regulation of space, place and manner of materials were described. Korea's research through more traditional residential architecture of the environmental control and a wide range of environmentally friendly eco-construction was that appeared natural to use energy efficiently, it had been available. Later appeared on the Korea traditional architecture through research on environmental control of environmentally friendly ways to navigate and take advantage of the elements, through continuous research and eco-friendly construction to realize the traditional South Korea could provide a prototype of the modern, I thought I'd had.

A Study on the Propagation of Harmonic Current in the Traction Power Supply System (철도 전력공급시스템에서의 고조파전류 확대현상에 관한 연구)

  • Oh, K.H.;Chang, S.H.;Han, M.S.;Lee, C.M.;Shin, H.S.
    • Proceedings of the KIEE Conference
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    • 1998.07c
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    • pp.908-910
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    • 1998
  • Modern AC electric car has PWM(Pulse Width Modulation) -controlled converters, which give rise to higher harmonics. The current harmonics injected from AC electric car is propagated through power feeding circuit. As the feeding circuit is a distributed constant circuit composed of RLC, the capacitance of the feeding circuit and the inductance on the side of power system cause a parallel resonance and a magnification of current harmonics at a specific frequency. The magnified current harmonics usually brings about various problems. That is, the current harmonics makes interference in the adjacent lines of communications and the railway signalling system. Furthermore, in case it flows on the side of power system, not only overheating and vibration at the power capacitors but also wrong operation at the protective devices can occur. Therefore, the exact assessment of the harmonic current flow must be undertaken at design and planning stage for the electric traction systems. From these point of view, this study presents an approach to model and to analyse traction power feeding system focused on the amplification of harmonic current. The proposed algorithm is applied to a standard AT(Auto-transformer)-fed test system in which electric car with PWM-controlled converters is running.

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A Study on the Countermeasures to Suppress Harmonics in the Traction Power Supply System (철도 급전시스템에서의 고조파 해석 및 대책 연구)

  • 오광해;이장무;창상훈;한문섭;김길상
    • Proceedings of the KSR Conference
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    • 1999.11a
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    • pp.318-325
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    • 1999
  • Modern AC electric car has PWM(Pulse Width Modulation)-controlled converters, which give rise to higher harmonics. The current harmonics injected from AC electric car is propagated through power feeding circuit, As the feeding circuit is a distributed constant circuit composed of RLC, the capacitance of the feeding circuit and the inductance on the side of power system cause a parallel resonance and a magnification of current harmonics at a specific frequency. The magnified current harmonics usually brings about various problems. That is, the current harmonics makes interference in the adjacent lines of communications and the railway signalling system. Furthermore, in case it flows on the side of power system, not only overheating and vibration at the power capacitors but also wrong operation at the protective devices can occur. Therefore, the exact assessment of the harmonic current flow must be undertaken at design and planning stage for the electric traction systems. From these point of view, this study presents an approach to model and to analyse traction power feeding system focused on the amplification of harmonic current The proposed algorithm is applied to a standard AT(Auto-transformer)-fed test system in which electric car with PWM-controlled converters is running.

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A Systematic Review of Acupuncture for Oculomotor Nerve Palsy

  • Ku, Yong Ho;Kang, Jae Hui;Kong, Hae Jin;Ryu, Hwa Yeon;Lee, Hyun
    • Journal of Acupuncture Research
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    • v.36 no.2
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    • pp.59-71
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    • 2019
  • Acupuncture treatment for oculomotor nerve palsy has been increasing recently. This study analyzed randomized controlled trials (RCTs) and case reports, using the Cochrane risk of bias tool to investigate the efficacy of acupuncture therapy for oculomotor nerve palsy. This analysis was performed on March 7, 2019, using online databases (PubMed, Cochrane, NDSL, OASIS, CNKI) where 208 articles were retrieved. Of these, there were 18 case reports and 18 RCTs that matched the inclusion criteria, of which 32 studies used acupuncture as the primary intervention, 1 used pharmacopuncture, 1 used fire-needling, and 1 used electroacupuncture. The most commonly used acupoints were BL1, BL2, ST2, TE23, Ex-HN5, LI4, GB14, ST36, GB20 and GB1. Significant findings were reported in all RCTs. Six adverse events were reported in 3 RCTs, with no effect on the outcome. No side effects were reported in the case reports. The risk-of-bias analysis showed that the articles did not report the experimental protocol used and it was not clear whether the study was blinded. Hence, it was difficult to assess the risk of bias. Analysis of 36 studies showed that acupuncture therapy for oculomotor nerve palsy was effective in many cases. It was difficult to evaluate the potential bias.

The Trends in Clinical Trials about Effects of Acupuncture on Anxiety, Depression and Mental Stress - In Medline, Pubmedcentral & Oriental Medicine Journal since 2004 - (침치료가 불안, 우울 및 정신적 스트레스에 미치는 효과에 대한 임상시험 연구 경향 - 2004년 이후의 Medline, Pubmedcentral 논문 검색과 국내 한의학 학술지 중심으로 -)

  • Kang, Hee-Chul;Lee, Seung-Gi
    • Journal of Oriental Neuropsychiatry
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    • v.20 no.4
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    • pp.137-148
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    • 2009
  • Objectives : The purpose of this study is to review the recent trends in the clinical trial studies that have been published since 2004. Methods : We reviewed the Medline & Pubmedcentral databases by using searching word of "acupuncture". Then 20 articles were selected within total 803 articles. In oriental medicine journals in Korea, we investigated 6 journals represented Korean Oriental medicine and chose 13 articles. Results & Conclusions : 1. We found 33 articles in journals. 2. The patterns of study were as follows: Randomized Controlled Trials(18), Single case series clinical study(9), Case-Control clinical study(4), Randomized crossover Trial(1) and Prospective Clinical analysis(1). 3. The fields of study were as follows: Combined anxiety, depression & other psychiatic symptoms(18), Stress & heart rate variablity(5), The single study of anxiety(5), The single study of depression(3), Stress & pupil variablity(1), Stress and heart rate & pupil variablity(1). 4. The methods of acupuncture were as follows: Acupuncture on points of 14 meridians(24), Auricular acupuncture(3), Electro acupuncture(2) and Both Auricular & Electro acupuncture(1). 5. Stomach meridian(足陽明胃經) and ST36(足三里) were used mostly.

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Review on Laser or LED Therapy for the Photobiomodulation of Diseases of the Cerebral Nervous System (뇌신경질환에 사용된 레이저 및 광선치료에 대한 임상 연구 고찰)

  • Lee, Kyung-Goo;Shin, Jong-Hun;Lee, Kyung-Jin;Sun, Seung-Ho;Han, Chang-Ho;Jang, In-Soo
    • The Journal of Internal Korean Medicine
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    • v.35 no.4
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    • pp.546-555
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    • 2014
  • Objectives: Recently, many studies have reported beneficial effects from the application of laser and light-emitting diode (LED) therapy for cerebral nervous disease. Transcranial laser therapy and LED therapy may be an effective method to treat diseases of the cerebral nervous system. This study aims to discuss the possibility of laser and LED therapy for cerebral nervous disease by reviewing literature about its effectiveness. Methods: We searched papers using PubMed, Science Direct, CINAHL, KTKP, Oasis and NDSL, using the keywords "Laser therapy, low-level", "Transcranial laser", "Transcranial light emitting diode" and "stroke", "traumatic brain injury", "dementia", "anxiety", "cognitive", "emotional effects", "psychiatric disorder", "multiple sclerosis", "Parkinson's disease". The search range included randomized controlled trials (RCTs) and clinical case series. Reviews and animal experiments were not included. Studies not matched with inclusion criteria were excluded. Results: A total 1,119 studies were found. 1,100 were excluded from scanning titles and abstracts and finally 9 articles were selected. Among the 9 articles, 5 were RCTs, one was a controlled study, and the other 3 were case reports. They reported that transcranial laser therapy and LED treatment had beneficial effects from photobiomodulation to the cerebral nervous system. Clinical evaluation factors showed favorable trends. Conclusions: Transcranial laser therapy and LED therapy seem to be effective to the cerebral nervous system and they may be a favorable choice for cerebral nervous disease.