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The study on ShanghanLun PingMaiFa (1) (『상한론(傷寒論)·평맥법(平脈法)』에 관한 연구(1))

  • Choi, Jin-Young;Park, Kwang-Cheon;Jeong, Han-Sol;Ha, Ki-Tae;Shin, Sang-Woo
    • The Journal of Korean Medical History
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    • v.25 no.2
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    • pp.63-96
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    • 2012
  • The PingMaiFa chapter, which is the second chapter of SongBon ShangHanLun, is the scholarly description(專論) of the pulse and pathological mechanism but has not been studied and published yet. This study is about article 1-13 which is the first part of The PingMaiFa chapter. We compared the original texts within the editions, comparing and analyzing the annotations of successive dynastic medical group. The articles of The SongBon ShangHanLun PingMaiFa chapter 1-13 is consisted as is shown: article 1 states about the general features of normal pulse (平脈) and its physiological mechanism and the morbid pulses (病脈) caused by wind, cold, retained fluid, pain and heat vexation, article 1,10 state about the normal pulses of Five viscera (lung, heart, spleen, liver and kidney) and their manipulations in pulse taking, article 2 states about the differentiations of deficiency and excess syndrome according to pulse conditions, article 3, 4 state about the estimation of good prognoses and a factitious disorder by the combination of pulses and symptoms, article 6 states about Latent qi (伏氣) and its diagnostic features, article 5 states about inspection and listening examination as co-diagnostic methods of the pulse diagnosis, article 7, 8, 9 state that the emotions, such as fear and shame, and the dietary are important factors to consider for making diagnosis, article 11 states about the overwhelming pulse (相乘脈) which indicates the abnormal correlations between five phases and appears in four patterns as the dissolute(縱), the unrighteous(橫), the unfavorable(逆) and the favorable(順), article 12 states about 6 harmful pulses(殘賊脈), which are string-like pulse(弦脈), tight pulse(緊脈), floating pulse(浮脈), slippery pulse(滑脈), sunken pulse(沈脈), rough pulse(澁脈), article 13 states about "JaeGoe"(災怪) which is an unexpected response after treatment and it comes because of the formulas that had before. Throughout all these articles, The PingMaiFa chapter not only offers great value for Pulse-taking diagnosis, but also leads to a better understanding of clinical applications.

Reprocessing of fluorination ash surrogate in the CARBOFLUOREX process

  • Boyarintsev, Alexander V.;Stepanov, Sergei I.;Chekmarev, Alexander M.;Tsivadze, Aslan Yu.
    • Nuclear Engineering and Technology
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    • v.52 no.1
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    • pp.109-114
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    • 2020
  • This work presents the results of laboratory scale tests of the CARBOFLUOREX (CARBOnate FLUORide EXtraction) process - a novel technology for the recovery of U and Pu from the solid fluorides residue (fluorination ash) of Fluoride Volatility Method (FVM) reprocessing of spent nuclear fuel (SNF). To study the oxidative leaching of U from the fluorination ash (FA) by Na2CO3 or Na2CO3-H2O2 solutions followed by solvent extraction by methyltrioctylammonium carbonate in toluene and purification of U from the fission products (FPs) impurities we used a surrogate of FA consisting of UF4 or UO2F2, and FPs fluorides with stable isotopes of Ce, Zr, Sr, Ba, Cs, Fe, Cr, Ni, La, Nd, Pr, Sm. Purification factors of U from impurities at the solvent extraction refining stage reached the values of 104-105, and up to 106 upon the completion of the processing cycle. Obtained results showed a high efficiency of the CARBOFLUOREX process for recovery and separating of U from FPs contained in FA, which allows completing of the FVM cycle with recovery of U and Pu from hardly processed FA.

A study on the classification systems of the Shu-mu Da-wen (서목답문의 분류체계에 관한 연구)

  • 박재혁
    • Journal of Korean Library and Information Science Society
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    • v.27
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    • pp.171-209
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    • 1997
  • The results of the study can be summarized as follows. The Shu-mu Da-wen was selected and compiled by Zhang Zhi Dong at the end of Qing Dynasty as a reading list for students preparing for the state examination and for the purpose of choosing the best from several versions. Whether it was compiled and edited by Zhang was in dispute. But it is almost certain that Zhang was the main editor because Shu-mu Da-wen showed his political, educational and scientific thoughts and knowledge distinctively. The followings are characteristics of Shu-mu Da-wen being compared with Si-ku Quan-shu Zong-mu Ti-yao. 1. In Jing-bu, the Confucian classics are divided into Zheng-jing Zheng-zhu and 'Lie-chao Jing-zhu Jing-shuo Jing-ben kao-zheng. Zheng-shi lei is divided into Zheng-shi fen he ke ben and Zheng-shi zhu bu biao pu kao-zheng. It is the special sorting method to include Du-ben lei in Jing-bu and Chu xue du-ben in Bie-lu in order to provide first learners for reading order. 2. Shi-bu included Gu-shi newly and Di-li lei is divided into Gu Di-li and Jin di-li in Shi-bu. Tian-wen Suan-fa lei is divided into Zhong-fa and Xi-fa in Zi-bu. Zhang distinguished between old books and contemporary ones to find out the origin and include newly published books in the East and the West. 3. Zhou-Qin zhu-zi is newly added to Zi-pu. In Ji-pu, Bie-ji and Zong-ji are categorized according to their style and period respectively. This show the new sorting method which added classifying system concerning academic development. It is the prominent feature in the compiling system to make Bie-lu and Cong-shu respective chapters. With those characteristics the Shu-mu Da-wen had been edited and published several times. It had a wide effect not only on compiling methods of cataloging afterwards and but also on classification systems before decimal classification was introduced in China.

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Synthesis of Organic EL Materials with Cyano Group and Evaluation of Emission Characteristics in Organic EL Devices (시안기를 가진 유기 EL 물질들의 합성 및 유기 EL 소자에서의 발광특성평가)

  • Kim, Dong Uk
    • Journal of the Korean Chemical Society
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    • v.43 no.3
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    • pp.315-320
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    • 1999
  • Novel electroluminescent materials, polymer material, PU-BCN and low molar mass material, D-BCN with the same chromophores were designed and synthesized. A molecular structure of chromophore was composed of bisstyrylbenzene derivative with cyano groups as electron injection and transport and phenylamine groups as hole injection and transport. Device structures with PU-BCN and D-BCN as an emission layer were fa-bricated, which were a single-layer device(SL), Indium-tin oxide(ITO)/emission layer/MgAg, and two kinds of double-layer devices which were composed of ITO/emission layer/oxadiazole derivative/MgAg as a DL-E device and ITO/triphenylamine derivative/emission layer/MgAg as a DL-H device. The two emission materials, PU-BCN and D-BCN with the same emission-chromophore were evaluated as having excellent performance of charge injection and transport and revealed almost the same emission characteristics in high current density. EL emission maximum peaks of two material were detected at about 640 nm wavelength of red emission region.

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Artificial Neural Network with Firefly Algorithm-Based Collaborative Spectrum Sensing in Cognitive Radio Networks

  • Velmurugan., S;P. Ezhumalai;E.A. Mary Anita
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.17 no.7
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    • pp.1951-1975
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    • 2023
  • Recent advances in Cognitive Radio Networks (CRN) have elevated them to the status of a critical instrument for overcoming spectrum limits and achieving severe future wireless communication requirements. Collaborative spectrum sensing is presented for efficient channel selection because spectrum sensing is an essential part of CRNs. This study presents an innovative cooperative spectrum sensing (CSS) model that is built on the Firefly Algorithm (FA), as well as machine learning artificial neural networks (ANN). This system makes use of user grouping strategies to improve detection performance dramatically while lowering collaboration costs. Cooperative sensing wasn't used until after cognitive radio users had been correctly identified using energy data samples and an ANN model. Cooperative sensing strategies produce a user base that is either secure, requires less effort, or is faultless. The suggested method's purpose is to choose the best transmission channel. Clustering is utilized by the suggested ANN-FA model to reduce spectrum sensing inaccuracy. The transmission channel that has the highest weight is chosen by employing the method that has been provided for computing channel weight. The proposed ANN-FA model computes channel weight based on three sets of input parameters: PU utilization, CR count, and channel capacity. Using an improved evolutionary algorithm, the key principles of the ANN-FA scheme are optimized to boost the overall efficiency of the CRN channel selection technique. This study proposes the Artificial Neural Network with Firefly Algorithm (ANN-FA) for cognitive radio networks to overcome the obstacles. This proposed work focuses primarily on sensing the optimal secondary user channel and reducing the spectrum handoff delay in wireless networks. Several benchmark functions are utilized We analyze the efficacy of this innovative strategy by evaluating its performance. The performance of ANN-FA is 22.72 percent more robust and effective than that of the other metaheuristic algorithm, according to experimental findings. The proposed ANN-FA model is simulated using the NS2 simulator, The results are evaluated in terms of average interference ratio, spectrum opportunity utilization, three metrics are measured: packet delivery ratio (PDR), end-to-end delay, and end-to-average throughput for a variety of different CRs found in the network.

The impact of fuel depletion scheme within SCALE code on the criticality of spent fuel pool with RBMK fuel assemblies

  • Andrius Slavickas;Tadas Kaliatka;Raimondas Pabarcius;Sigitas Rimkevicius
    • Nuclear Engineering and Technology
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    • v.54 no.12
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    • pp.4731-4742
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    • 2022
  • RBMK fuel assemblies differ from other LWR FA due to a specific arrangement of the fuel rods, the low enrichment, and the used burnable absorber - erbium. Therefore, there is a challenge to adapt modeling tools, developed for other LWR types, to solve RBMK problems. A set of 10 different depletion simulation schemes were tested to estimate the impact on reactivity and spent fuel composition of possible SCALE code options for the neutron transport modelling and the use of different nuclear data libraries. The simulations were performed using cross-section libraries based on both, VII.0 and VII.1, versions of ENDF/B nuclear data, and assuming continuous energy and multigroup simulation modes, standard and user-defined Dancoff factor values, and employing deterministic and Monte Carlo methods. The criticality analysis with burn-up credit was performed for the SFP loaded with RBMK-1500 FA. Spent fuel compositions were taken from each of 10 performed depletion simulations. The criticality of SFP is found to be overestimated by up to 0.08% in simulation cases using user-defined Dancoff factors comparing the results obtained using the continuous energy library (VII.1 version of ENDF/B nuclear data). It was shown that such discrepancy is determined by the higher U-235 and Pu-239 isotopes concentrations calculated.

Improved Resource Allocation Model for Reducing Interference among Secondary Users in TV White Space for Broadband Services

  • Marco P. Mwaimu;Mike Majham;Ronoh Kennedy;Kisangiri Michael;Ramadhani Sinde
    • International Journal of Computer Science & Network Security
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    • v.23 no.4
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    • pp.55-68
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    • 2023
  • In recent years, the Television White Space (TVWS) has attracted the interest of many researchers due to its propagation characteristics obtainable between 470MHz and 790MHz spectrum bands. The plenty of unused channels in the TV spectrum allows the secondary users (SUs) to use the channels for broadband services especially in rural areas. However, when the number of SUs increases in the TVWS wireless network the aggregate interference also increases. Aggregate interferences are the combined harmful interferences that can include both co-channel and adjacent interferences. The aggregate interference on the side of Primary Users (PUs) has been extensively scrutinized. Therefore, resource allocation (power and spectrum) is crucial when designing the TVWS network to avoid interferences from Secondary Users (SUs) to PUs and among SUs themselves. This paper proposes a model to improve the resource allocation for reducing the aggregate interface among SUs for broadband services in rural areas. The proposed model uses joint power and spectrum hybrid Firefly algorithm (FA), Genetic algorithm (GA), and Particle Swarm Optimization algorithm (PSO) which is considered the Co-channel interference (CCI) and Adjacent Channel Interference (ACI). The algorithm is integrated with the admission control algorithm so that; there is a possibility to remove some of the SUs in the TVWS network whenever the SINR threshold for SUs and PU are not met. We considered the infeasible system whereby all SUs and PU may not be supported simultaneously. Therefore, we proposed a joint spectrum and power allocation with an admission control algorithm whose better complexity and performance than the ones which have been proposed in the existing algorithms in the literature. The performance of the proposed algorithm is compared using the metrics such as sum throughput, PU SINR, algorithm running time and SU SINR less than threshold and the results show that the PSOFAGA with ELGR admission control algorithm has best performance compared to GA, PSO, FA, and FAGAPSO algorithms.

Spectrum Sensing Techniques for Cognitive radio-A Review

  • Matin, Mohammad A.
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.8 no.11
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    • pp.3638-3654
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    • 2014
  • Cognitive Radio (CR) users need to sense the environment or channel at regular time interval for sharing the spectrum band of the primary users (PUs). Once find the spectrum idle, CR users start their transmission through it. Even while transmitting, they need to continue the sensing process so that they can leave the spectrum immediately whenever find a PU wanting to use the band. Therefore, detecting PUs is one of the main functions of cognitive radio before transmission and higher the detection probability ensures better protection to the primary users. However, it is not possible to attain a high detection probability (or a low miss detection probability) and low false alarm probability simultaneously as there is a tradeoff between false alarm probability ($P_{fa}$) and the probability of detection ($P_d$). In this paper, the author has provided a comprehensive study on different sensing techniques and discussed their advantages and disadvantages. Moreover, it is expected that, with this article, readers can have a through understanding of sensing techniques in CR and the current research trends in this area.

The Study on Correlation between the Forward Head Posture and Spinal Alignment (전방머리자세(Forward Head Posture)의 정도와 척추 만곡 변형의 상관관계)

  • Jung, Hyun-Woo;Shin, Woo-Suk;Kim, Doo-Hee;Park, Won-Hyung;Cha, Yun-Yeop;Ko, Youn-Seok;Lee, Jung-Han;Chung, Won-Suk;Shin, Byung-Cheul;Song, Yun-Kyung;Go, Ho-Yeon;Sun, Seong-Ho;Jeon, Chan-Yong;Jang, Bo-Hyoung;Ko, Seong-Gyu
    • Journal of Korean Medicine Rehabilitation
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    • v.23 no.4
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    • pp.195-202
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    • 2013
  • Objectives This study was designed to investigate the correlation between the forward head posture and the spinal alignment. Methods We examined the whole spine x-rays of the 144 student sample. We measured the Craniovertebral angle (CVA), Cervical angle (CA), Thoracic kyphotic angle (TKA), lumbar lordosis angle (LLA) and Ferguson's angle (FA) of the students. We then analyzed the relationship between these angles. Results CVA had correlation with CA, but it was weak. There was significant correlation between CVA and TKA. There were no significant correlation among CVA, LLA and FA. Conclusions According to above results, there is a negative relationship between the CVA and the TKA - in that higher CVAs yielded lower TKAs. But CVA had no significant correlation with LLA or FA.

'ekayāna' on Wonhyo(617-686) and Euisang(625-702) : A vision for Com-transcendency(包越 powol) (포월(包越)의 이념)

  • Lee, Jong-Cheol
    • Journal of the Daesoon Academy of Sciences
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    • v.17
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    • pp.73-92
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    • 2004
  • The present article deals with the concept 'ekayāna' as the spirit of the times in the period of Unifying War in Shilla, which is embodied in the thought of Wonhyo and Euisang. This article is divided into five sections. Section I introduces the background of research history regarding the spirit of the age during the Unifying War, and explaines the reason why we adopted two thinkers such as Wonhyo and Euisang, especially the concept 'ekayāna' of the two as a subject for inquiry. Section II discusses on the hermeneutical difference between the Chinese Faxiang sect and Wonhyo regarding the interpretation of one passage from Saṃdhinirmocana-Sūtra, in which the relation between ekayāna and triyāna is explained. It is noteworthy that Faxiang sect places emphasis on the differentiation of triyāna, but Wonhyo gives emphasis to equality of ekayāna. Section III refers to the hermeneutical horizons of Wonhyo which is connoted in the interpretation of Saṃdhinirmocana-Sūtra, especially focusing on the concept 'ekayāna'. Here we can make a conclusion as follows; Firstly, the 'ekayāna' in Wonhyo is immanent in 'triyāna' and at the same time transcendental from 'triyāna', so to speak 'com-transcendetal' with 'triyāna'. Secondly, there is inseparable and unmixable relation between 'ekayāna' and beings. In another words, 'ekayāna' is śūnyatā. Thirdly, 'ekayāna' is a kind of universal truth(普法 pŭ fă) in that it offers the benefit to open and develop the immanent buddhadhātu of all living lives. In addition to Wonhyo's thought on ekayāna, section IV refers to the concept 'ekayāna' of Euisang. On Euisang, 'ekayāna' is 'the perfect teaching(圓敎 yuán jiào)' and 'pratītyasamutpāda'. From this point of view, we can conclude that the thought on ekayāna between the two, Wonhyo and Euisang is not different, and completely coherent. As a result, as it is concluded in section V, it is also clear that ekayāna has 'com-transcendental' relation to triyāna. Therefore we can safely make a conclusion that the spirit of the times in the period of Unifying War in Shilla among the leading thinkers is the vision for 'com-transcendency'.

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