• Title/Summary/Keyword: (reinforcement and reduction method)

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The Study of Saamchimbeop's Method of Reinforcement and Reduction (사암침법(舍巖鍼法)의 보사수기법(補瀉手技法)에 관한 연구(硏究))

  • Ahn, Jeong-Ran;Lee, In-Seon
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.2
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    • pp.113-123
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    • 2009
  • Objectives : The purpose of this study is what Saamchimbeop's method of reinforcement and reduction. Methods : 1. We reffered to the Bo-Sa method of DongeuiBo-gam(東醫寶鑑), Uihakim-mun(醫學入門), Uihakjeong-jeon(醫學正傳), Chimgugyeongheom-bang(鍼灸經驗方), Biaoyou-fu(標幽賦) in Cimgudaeseong(鍼灸大成), Nei-Jing(內經). 2. We make a conjecture that Zheng(正), Ying(迎), Sui(隨), Xie(斜) Yingzheng(迎正), Duo(奪), Zhenghuoxie(正或斜), Wen(溫), Liang(凉), JongYang-Inyin (從陽引陰) in Saamchimbeop are another expression of method of reinforcement and reduction and compared with the method of reinforcement and reduction of DongeuiBo-gam(東醫寶鑑), Uihakim-mun(醫學入門), Uihakjeong-jeon(醫學正傳), Chimgugyeongheom-bang(鍼灸經驗方), Biaoyou-fu(標幽賦) in Cimgudaeseong(鍼灸大成), Nei-Jing(內經). Results : 1. Zheng(正) and Xie(斜) are angle of acupuncture manipulation. The descending inserting of Yang-meridian is acupuncture manipulation for the Tonifying effect(補法) and the direct inserting of Yin-meridian is the Dispersing effect(瀉法). 2. JongYang-Inyin(從陽引陰) is the contralateral acupuncture. 3. Ying(迎) and Sui(隨) in the Saamchimbeop are same meaning the method of reinforcement and reduction(補瀉手技法). 4. Saamchimbeop's the final aim is the Wen-Liang(溫凉) according to the disease strong and weak in the Ohaeng-seo of Saam-acupuncture. Conclusions : Saamchimbeop's method of reinforcement and reduction is reinforcement-reduction by lifting and thrusting the needle, breathing reinforcement-reduction method, reinforcing and reducing achieved by rapid and slow insertion and withdrawing of the needles, reinforcement and reduction by opening and closing of needles with contralateral acupuncture by Yin-meridian or Yang-meridian. Saamchimbeop's the final aim is the Wen-Liang(溫凉) according to the disease strong and weak.

A Study on the Meaning of Theory that Acupuncture has no Reinforcement -Focusing on the method of reinforcement and reduction in Huangdineijing- (침무보법(鍼無補法)의 의미에 대한 고찰(考察) -『황제내경(黃帝內經)』의 보사법(補瀉法)을 중심으로-)

  • Yun, Ki-ryoung;Baik, Yousang;Jang, Woo-chang;Jeong, Chang-hyun
    • Journal of Korean Medical classics
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    • v.31 no.2
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    • pp.141-153
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    • 2018
  • Objectives : Acupuncture therapy's reinforcement and reduction method is now widely used in the clinical practices. Meanwhile, there has been a voice of concern since the past that acupuncture has no reinforcement. This thought has not been given enough discussion, and the paper attempts to remedy this absence and verify the validity of the concern. Methods : The acupunctural reinforcement and reduction method found in the Huangdineijing is reviewed, and a number of medical books that discuss the idea of lack of reinforcement in acupuncture are studied. Results : Huangdineijing describes the acupunctural unique feature of reduction. The text explains that acupuncture work in a way that is different that medicine, and thus cannot be used for a disease based on deficiency. In addition, it warned the loss of the primordial qi when needling oneself. Reinforcement in the reinforcement and reduction technique as described in Huangdineijing mainly revolves around preventing the loss of the primordial qi. Conclusions : The purpose of the acupunctural reinforcement and reduction is to control the body's disproportional qi deficiency and excess, where some parts of the body has more qi than others. The reinforcement in "acupunctural reinforcement and reduction method" and the reinforcement in "acupuncture only has reduction and no reinforcement" within the thought of "acupuncture has no reinforcement" are different in that one deals with controlling the imbalance of qi in body, and the other deals with dispelling the deficiency by flowing the qi in the viewpoint of entering and out. This calls for a need to establish the proper acupunctural points, numbers, and times for each disease based on the theory of "acupuncture has no reinforcemen."

Improvement of Constructability of Coping by Reduction of Reinforcement Amount (철근량 저감을 통한 코핑부 시공성 향상)

  • Park, Bong-Sik;Park, Sung-Hyun;Cho, Jae-Yeol
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.1577-1582
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    • 2011
  • Recently rapid construction of bridge is a main interest in construction. A research on rapid construction of pier coping is urgently needed because pier, which is a bridge understructure, directly affect lane reduction and increase of social cost. Precast assembly method and pre-assembly method are the main subjects of rapid construction. But these researches have focused not on reduction of reinforcement amount, but on modifying production method of coping. Reinforcement amount of design specification is as much as that of coping under constructing. So different approach is needed for reduction of reinforcement amount. In this paper, design of pier coping using strut-tie model was proposed for reduction of reinforcement amount and improvement of constructability. Railway bridge pier coping under constructing was analyzed using a finite element method and designed using strut-tie model.

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Nonlinear Seismic Analysis for Performance Assessment of Hollow RC Bridge Columns with Reinforcement Details for Material Quantity Reduction (물량저감 중공 철근콘크리트 교각의 성능평가를 위한 비선형 지진해석)

  • Kim, Tae Hoon;Lee, Seung Hoon
    • Journal of the Earthquake Engineering Society of Korea
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    • v.18 no.5
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    • pp.221-230
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    • 2014
  • The purpose of this study is to investigate the seismic performance of hollow RC bridge columns with reinforcement details for material quantity reduction. The proposed reinforcement details provide economy, are rational and shorthen the construction periods. The accuracy and objectivity of the assessment process can be enhanced by using a sophisticated nonlinear finite element analysis program. Solution of the equations of motion is obtained by numerical integration using Hilber-Hughes-Taylor (HHT) algorithm. The adopted numerical method gives a realistic prediction of seismic performance throughout the input ground motions for several test specimens investigated. As a result, the proposed reinforcement details for material quantity reduction develop equal performance to that required for existing reinforcement details.

The Design and Practice of Disaster Response RL Environment Using Dimension Reduction Method for Training Performance Enhancement (학습 성능 향상을 위한 차원 축소 기법 기반 재난 시뮬레이션 강화학습 환경 구성 및 활용)

  • Yeo, Sangho;Lee, Seungjun;Oh, Sangyoon
    • KIPS Transactions on Software and Data Engineering
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    • v.10 no.7
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    • pp.263-270
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    • 2021
  • Reinforcement learning(RL) is the method to find an optimal policy through training. and it is one of popular methods for solving lifesaving and disaster response problems effectively. However, the conventional reinforcement learning method for disaster response utilizes either simple environment such as. grid and graph or a self-developed environment that are hard to verify the practical effectiveness. In this paper, we propose the design of a disaster response RL environment which utilizes the detailed property information of the disaster simulation in order to utilize the reinforcement learning method in the real world. For the RL environment, we design and build the reinforcement learning communication as well as the interface between the RL agent and the disaster simulation. Also, we apply the dimension reduction method for converting non-image feature vectors into image format which is effectively utilized with convolution layer to utilize the high-dimensional and detailed property of the disaster simulation. To verify the effectiveness of our proposed method, we conducted empirical evaluations and it shows that our proposed method outperformed conventional methods in the building fire damage.

Performance Assessment of Hollow Precast Segmental Bridge Columns with Reinforcement Details for Material Quantity Reduction (조립식 물량저감 중공 철근콘크리트 교각의 성능평가)

  • Kim, Tae-Hoon;Park, Dong-Kyu;Lee, Jae-Hoon;Shin, Hyun-Mock
    • Journal of the Earthquake Engineering Society of Korea
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    • v.20 no.1
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    • pp.33-43
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    • 2016
  • This study investigates the performance of hollow precast segmental bridge columns with reinforcement details for material quantity reduction. The proposed triangular reinforcement details are economically feasible and rational, and facilitate shorter construction periods. The precast segmental bridge columns provides an alternative to current cast-in-place systems. We tested a model of hollow precast segmental bridge columns under a constant axial load and a quasi-static, cyclically reversed horizontal load. We used a computer program, Reinforced Concrete Analysis in Higher Evaluation System Technology (RCAHEST), for analysis of reinforced concrete structures. The used numerical method gives a realistic prediction of performance throughout the loading cycles for hollow precast segmental bridge column specimens investigated. As a result, proposed reinforcement details for material quantity reduction was equal to existing reinforcement details in terms of required performance.

Hollow Reinforced Concrete Bridge Column Systems with Reinforcement Details for Material Quantity Reduction: II. Experiments and Analyses (물량저감 철근상세를 갖는 중공 철근콘크리트 교각 시스템: II. 실험 및 해석)

  • Kim, Tae-Hoon;Kim, Ho-Young;Lee, Jae-Hoon;Shin, Hyun-Mock
    • Journal of the Earthquake Engineering Society of Korea
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    • v.18 no.1
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    • pp.9-18
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    • 2014
  • The purpose of this study is to investigate the seismic behavior of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction and to provide the details and reference data. Five hollow reinforced concrete bridge columns were tested under a constant axial load and a cyclically reversed horizontal load. The accuracy and objectivity of the assessment process can be enhanced by using a sophisticated nonlinear finite element analysis program. The adopted numerical method gives a realistic prediction of seismic performance throughout the loading cycles for several the investigated test specimens. This study documents the testing of hollow reinforced concrete bridge column systems with reinforcement details for material quantity reduction and presents conclusions based on the experimental and analytical findings.

A Study on the Effect of Interaction between Acupuncture at Shinmun(HT7) and Subject's Cold or Heat Tendency on Heart Rate Variability (신문혈(神門穴) 자극(刺戟)과 한열성향(寒熱性向)의 교호작용(交互作用)이 심박변이도(心博變移度)에 미치는 영향(影響))

  • Kim, Dong-Hoon;Yang, Dong-Hoon;Kim, Eun-Jung;Nam, Dong-Woo;Park, Yeon-Cheol;Park, Young-Jae;Lee, Sang-Chul;Park, Young-Bae
    • Journal of Acupuncture Research
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    • v.23 no.1
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    • pp.25-38
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    • 2006
  • Objectives : Acupuncture has been widely used in oriental medicine. The aim of this research is to study how does the interaction between reinforcement-reduction by twirling nine and six and subject's cold or heat tendency effect on Heart Rate Variability. Methods : We divided our subjects into 3 groups at random and classified subjects by their cold or heat tendency using questionnaire for cold-heat patternization. Group 1 is acupuncture at shinmun(HT7) reinforcement group, 2 is acupuncture at shinmun(HT7) reduction group, 3 in acupuncture at hapkok(LI4) group. According to their group, we acupunctured. Before and after acupuncture Heart Rate Variability raw data were measured during 5 minutes. LF, HF, LF norm HF norm were calculated. We analyzed these data using 3-way repeated ANOVA, Paired student T-Test. Results : 3-way repeated ANOVA showed significant interaction among LF, each group and subject's cold heat tendency(p<0.05). Paired student T-Test showed significant differences between before and after acupuncture at shinmun(HT7) reinforcement method in cold tendency men and acupuncture at shinmun(HT7) reduction method in heat tendency men(p<0.05). Conclusion : These results suggest that acupuncture at Shinmun(HT7) has an effect on declining sympathetic nerve function and has an effect on stabilizing mind through Interaction between reinforcement-reduction by twirling nine and six and subject's cold or heat tendency. We propose that more prudent care is needed about subject's cold or heat tendency and acupuncture technique of reinforcement-reduction to achieve the most suitable treatment effect.

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Load bearing capacity reduction of concrete structures due to reinforcement corrosion

  • Chen, Hua-Peng;Nepal, Jaya
    • Structural Engineering and Mechanics
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    • v.75 no.4
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    • pp.455-464
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    • 2020
  • Reinforcement corrosion is one of the major problems in the durability of reinforced concrete structures exposed to aggressive environments. Deterioration caused by reinforcement corrosion reduces the durability and the safety margin of concrete structures, causing excessive costs in managing these structures safely. This paper aims to investigate the effects of reinforcement corrosion on the load bearing capacity deterioration of the corroded reinforced concrete structures. A new analytical method is proposed to predict the crack growth of cover concrete and evaluate the residual strength of concrete structures with corroded reinforcement failing in bond. The structural performance indicators, such as concrete crack growth and flexural strength deterioration rate, are assumed to be a stochastic process for lifetime distribution modelling of structural performance deterioration over time during the life cycle. The Weibull life evolution model is employed for analysing lifetime reliability and estimating remaining useful life of the corroded concrete structures. The results for the worked example show that the proposed approach can provide a reliable method for lifetime performance assessment of the corroded reinforced concrete structures.

Self-Organized Reinforcement Learning Using Fuzzy Inference for Stochastic Gradient Ascent Method

  • K, K.-Wong;Akio, Katuki
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.96.3-96
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    • 2001
  • In this paper the self-organized and fuzzy inference used stochastic gradient ascent method is proposed. Fuzzy rule and fuzzy set increase as occasion demands autonomously according to the observation information. And two rules(or two fuzzy sets)becoming to be similar each other as progress of learning are unified. This unification causes the reduction of a number of parameters and learning time. Using fuzzy inference and making a rule with an appropriate state division, our proposed method makes it possible to construct a robust reinforcement learning system.

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