• Title/Summary/Keyword: jade

Search Result 177, Processing Time 0.026 seconds

Development of an algorithm for the separation of ECG from mixed EMG signal (ICA를 이용한 근전도에 첨가된 심전도 신호 분리 알고리즘의 개발)

  • Lee, J.;Kwon, O.Y.;Lee, K.J.
    • Proceedings of the KIEE Conference
    • /
    • 2002.07d
    • /
    • pp.2687-2689
    • /
    • 2002
  • 본 연구는 환자의 근육 상태를 표면 근전도(EMG, Electrocardiogram)를 통해 정량적으로 평가한 결과를 기반으로 적응 전기치료를 수행 시, 근전도 정량평가에 영향을 주는 심전도 신호를 독립요소 해석(ICA, Independent Component Analysis)을 이용하여 획득된 신호로부터 분리함으로써, 정확한 근전도 정량평가를 할 수 있도록 하는 것을 목적으로 한다. 실험 방법은 소스(source)를 근전도와 심전도 2개로 가정하고, 4 채널을 통하여 획득된 신호를 10 Hz-500 Hz의 대역통과 필터를 이용하여 필터링한 후, 1000 sample/sec로 샘플링하여 센서로 사용하였으며, JADE(Joint Approximate Diagonalization of Eigen-matrices) 알고리즘을 통하여 근전도 신호와 심전도 신호를 분리하였다. 알고리즘의 permutation ambiguity와 scaling ambiguity 특성 문제를 해결하기 위하여, 분리된 신호의 주파수 분석을 통하여 심전도와 근전도 신호로 구분하였으며, 인식된 근전도 신호의 크기를 센서 신호를 기준으로 복원하였다. 결론적으로 아날로그 및 디지털 필터와 달리 근전도의 신호의 왜곡을 극소화하면서도 심전도 신호를 분리해 냄으로써, 근전도를 통한 근육상태의 효과적인 평가가 가능하게 되었다.

  • PDF

Construction of Location based Guide System in Ubiquitous Hospital Environment (u-병원환경에서 위치기반 가이드 시스템 구축)

  • Choi, Jae-Hyeong;Jeong, Chang-Won;Joo, Su-Chong
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2010.06b
    • /
    • pp.318-323
    • /
    • 2010
  • 최근 병원이 주체가 되어 유비쿼터스 인프라를 구축하여, 이를 기반으로 병원 구성원뿐만 아니라 환자에 이르기까지 다양한 병원 정보 서비스를 제공하기 위한 연구와 시범사업이 이루어지고 있는 추세이다. 본 논문에서는 u-병원 환경에서 위치기반 가이드 시스템을 제안한다. 제한한 시스템의 소프트웨어 구조는 기존 연구되었던 분산객체그룹프레임워크(Distributed Object Group Framework)와 JADE(Java Agent DEvelopment Framework)를 기반으로 한다. 특히, RFID를 이용한 실내 위치 추적 기술과 본 연구실에서 연구해온 분산 프레임워크를 바탕으로 병원을 대상으로 하여 환자의 위치에 따르는 각 검사실의 위치와 검사에 필요한 정보를 제공한다. 이를 위해 시스템을 구성하는 전체 시스템 구조와 구성요소 간 상호작용에 대해 기술하였다. 그리고 물리적인 환경을 보이고 시스템의 수행과정을 모바일 디바이스상의 사용자 GUI를 통해 보였다.

  • PDF

Synthesis of four-bar linkage motion generation using optimization algorithms

  • Phukaokaew, Wisanu;Sleesongsom, Suwin;Panagant, Natee;Bureerat, Sujin
    • Advances in Computational Design
    • /
    • v.4 no.3
    • /
    • pp.197-210
    • /
    • 2019
  • Motion generation of a four-bar linkage is a type of mechanism synthesis that has a wide range of applications such as a pick-and-place operation in manufacturing. In this research, the use of meta-heuristics for motion generation of a four-bar linkage is demonstrated. Three problems of motion generation were posed as a constrained optimization probably using the weighted sum technique to handle two types of tracking errors. A simple penalty function technique was used to deal with design constraints while three meta-heuristics including differential evolution (DE), self-adaptive differential evolution (JADE) and teaching learning based optimization (TLBO) were employed to solve the problems. Comparative results and the effect of the constraint handling technique are illustrated and discussed.

Ahn Min-young's Jade-like Sijo, Emotion Coding by Orchid

  • Park, Inkwa
    • International Journal of Advanced Culture Technology
    • /
    • v.7 no.1
    • /
    • pp.199-208
    • /
    • 2019
  • Today, mankind is falling in serious stress. So there are various way that heal men as human psychology, philosophy, medical science etc. And in recent years, interest in literature therapy has been focused to heal the human sense of spirit. In the future, we will be able to treat our spirit sense with AI Emotion. The treatment process can be induced by the system of emotion coding which AI Emotion deliver Emotion signals to Human body. For this study, we used the Ahn Min-young's Sijo. The reason is that his Sijo is useful this study of the Emotion Coding. As the result, Ahn Min-young's emotion coding created the codes as if amino acid codes. We must continue this research. Then our literature therapy could grow and contribute to human well-being.

Autophagy in the uterine vessel microenvironment: Balancing vasoactive factors

  • Lim, Hyunjung Jade
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.47 no.4
    • /
    • pp.263-268
    • /
    • 2020
  • Autophagy, which has the literal meaning of self-eating, is a cellular catabolic process executed by arrays of conserved proteins in eukaryotes. Autophagy is dynamically ongoing at a basal level, presumably in all cells, and often carries out distinct functions depending on the cell type. Therefore, although a set of common genes and proteins is involved in this process, the outcome of autophagic activation or deficit requires scrutiny regarding how it affects cells in a specific pathophysiological context. The uterus is a complex organ that carries out multiple tasks under the influence of cyclic changes of ovarian steroid hormones. Several major populations of cells are present in the uterus, and the interactions among them drive complex physiological tasks. Mouse models with autophagic deficits in the uterus are very limited, but provide an initial glimpse at how autophagy plays a distinct role in different uterine tissues. Herein, we review recent research findings on the role of autophagy in the uterine mesenchyme in mouse models.

A Cooperative Multiagent System for Enhancing Smart Grid Performance

  • Mohammad A Obeidat
    • International Journal of Computer Science & Network Security
    • /
    • v.23 no.2
    • /
    • pp.164-172
    • /
    • 2023
  • Sharing power data between electrical power grids is crucial in energy management. The multi-agent approach has been applied in various applications to improve the development of complex systems by making them both independent and collaborative. The smart grid is one of the most intricate systems that requires a higher level of independence, reliability, protection, and adaptability to user requests. In this paper, a multi-agent system is utilized to share knowledge and tackle challenges in smart grids. The shared information is used to make decisions that aid in power distribution management within the grid and with other networks. The proposed multi-agent mechanism improves the reliability of the power system by providing the necessary information at critical times. The results indicate that the multi-agent system operates efficiently and promptly, making it a highly promising candidate for smart grid management.

An Implementation of Context Aware Server Based on Multi-Reasoning (다중 추론기반 상황인식 서버의 구현)

  • Jeong, Jang-Seop;Ki, Byung-Wook;Bang, Dae-Wook
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2010.11a
    • /
    • pp.1770-1773
    • /
    • 2010
  • 최근 웹상에 존재하는 데이터와 정보들을 사람뿐만 아니라 기계의 컴퓨터 프로그램이 이해할 수 있도록 시멘틱 추론을 기반으로 표현하는 방법은 날로 발전하고 있다. 그렇지만 상황인식 시스템을 구성하는 요소들의 모호성과 복잡성 해결을 위해 다양한 연구가 진행되고 있음에도 불구하고, 기존의 방법들은 주로 규칙기반 추론방법만 적용하여 구현함으로써 정보의 신뢰성과 정확성 확보에 있어 불합리한 요소와 추론의 한계가 많은 것이 현실이다. 따라서 본 논문에서는 단일 추론의 한계를 보완하기 위하여 온톨로지 추론, 규칙 추론 또는 확률 추론을 상황에 따라 선택할 수 있는 다중 추론기반 상황인식 서버를 제안하고, OWL 온톨로지 및 자바기술, JADE 이동 에이전트 그리고 $Prot{\acute{e}}g{\acute{e}}$-OWL API로 구현하는 과정과 성능분석 결과를 설명한다.

Injury of Neurons by Oxygen-Glucose Deprivation in Organotypic Hippocampal Slice Culture (뇌 해마조직 절편 배양에서 산소와 당 박탈에 의한 뇌신경세포 손상)

  • Chung, David Chanwook;Hong, Kyung Sik;Kang, Jihui;Chang, Young Pyo
    • Clinical and Experimental Pediatrics
    • /
    • v.51 no.10
    • /
    • pp.1112-1117
    • /
    • 2008
  • Purpose : We intended to observe cell death and apoptotic changes in neurons in organotypic hippocampal slice cultures following oxygen-glucose deprivation (OGD), using propidium iodide (PI) uptake, Fluoro-Jade (FJ) staining, TUNEL staining and immunofluorescent staining for caspase-3. Methods : The hippocampus of 7-day-old rats was cut into $350{\mu}m$ slices. The slices were cultured for 10 d (date in vitro, DIV 10) and and exposed to OGD for 60 min at DIV 10. They were then incubated for reperfusion under normoxic conditions for an additional 48 h. Fluorescence of PI uptake was observed at predetermined intervals, and the cell death percentage was recorded. At 24 h following OGD, the slices were Cryo-cut into $15{\mu}m$ thicknesses, and Fluoro-Jade staining, TUNEL staining, and immunofluorescence staining for caspase-3 were performed. Results : 1) PI uptake was restricted to the pyramidal cell layer and DG in the slices after OGD. The fluorescent intensities of PI increased from 6 to 48 h during the reperfusion stage. The cell death percentage significantly increased time-dependently in CA1 and DG following OGD (P<0.05). 2) At 24 h after OGD, many FJ positive cells were detected in CA1 and DG. Some neurons had distinct nuclei and processes while others had fragmented nuclei and disrupted processes in CA1. TUNEL and immunofluorescent staining for caspase-3 showed increased expression of TUNEL labeling and caspase-3 in CA1 and DG at 24 h after OGD. Conclusion : The numerous dead cells in the slice cultures after OGD tended to display apoptotic changes mediated by the activation of caspase-3.

A Study on Luxury Prohibition of Korean Personal Ornaments (한국장신구의 사치 금제 고찰)

  • 추원교
    • Archives of design research
    • /
    • v.2 no.1
    • /
    • pp.43-62
    • /
    • 1989
  • The luxury is the expression of human being's ornament instinct. In this study, in order to grasp the moulding system of the Korean's personal ornaments, the process of luxury prohibition was reviewed to search for to which direction the ornaments developed in the frame of the prohibited style connected closely to the character of the personal ornaments. The proiod was fixed from the old society to the late Chosun dynasty era. The beginning of the luxury in Korea seems to be the start of the luxury burial at the time of funeral in the age of Koguryo., In the era of Koguryo, 10th year of King Dongmyung (B. C. 28), in the era of Baekje, 27th year of King Koi(260), the prohibition of dress regulation and the style of dress were conducted. The prohibition of personal ornaments in Silla was started from King Bup:Heung, and in the 9th year of King Heung-Duk, the prohibition was conducted in order to correct the luxury of the nobles and set up the social discipline. In the 11 th of King Il-Sung-Ni-Sa-Kum, the use of gold, silver and jade was prohibited in the civilian circles. The prohibition of Silla was succeeded to Koryo era, and in the 7th year of King Kwangjong(956), the system of Baekgwan Gongbok(uniform for government officials) was set up, and the system of Sasek Gongbok(four color official uniform) was set up in the 11 th year of the same King, and the prohibition of the personal ornaments such as crown and band is considred to have been conducted. The prohibition of gold and silver was conducted in the first year of King Sungjong(982), and in the 4th year of King Chungryul(l260), the order of wearing the dress and hat in accordance with the Yusan dynasty and the Mongolian customs were widely circulated in the royal court and vivilian circles. The strong influence of Mongolia made the taste of the traditional personal ornaments laste. The personal ornaments were used for the nobles until the age of the Unified Sillar but even the common people could use them in case they were rich, and such a circumstances made the use of foreign goods inflated. The prohibition of Koryo era was aimed at the prohibition of the foreign goods of luxury, and the classification of the social status.In the age of Chosun Dynasty, the production of gold and silver was feeble indeed but the oute reason of the prohibition was to eradicate the luxurious tendency, elevate the custom of eradicate the luxurious tendency, elevate the custom of thrift, and moreover, the gold, silver and jade were no the products of Korea and the prohibition was conducted but the true reason was afor the tribute tt China and the classification of status. The prohibition of Chosun dynasty was conducted first in the June of the 3rd year of King Taejo The major contents of prohibition was no use of gold, silver and jade, coral, agate, amber, etc. of th, wives of the Dang-Sang-Kwan (Court Nobleman) or their sons and daughters, and the same pheno menon was common even at the time of marriage. The people engaged in the secret trade there of wert beheaded. The personal ornaments in the prohibition were the pendent trinket, Binyo (crossbar) ceremonial ornamental hat, ring, earring, ornamental knife, hat string, hat ornament, belt, etc. Thl luxurious marriage expenses out of the luxury was severe, and lose of the marriageable age because 0 non-preparing the marriage goods was the national evil. The prohibition oC luxury was hard to bt kept to the nobles or rich people, the same as old days and present days. The prohibition of th{ luxury and personal ornaments of Korea had nothing to do with the commons, and it was limited tc the nobles and rich people. The prohibition was aimed to cultivating the custom of frugality by eradicating the luxurious atmosphere, but it was chiefly due to the tribute to the China and tht discrimination of the. status. We can say that the recent personal ornament was the flower of handi craft industry bloomed in the prohibition and regulation.

  • PDF

Quality Characteristics of Sliced Raw-fish Washed by Different Methods during Storage (세척방법에 따른 생선회의 저장 중 품질특성)

  • Oh, Seung-Hee;Jung, Yoo-Kyung;Kim, Su-Hyun;Kim, Soon-Dong
    • Food Science and Preservation
    • /
    • v.14 no.6
    • /
    • pp.571-577
    • /
    • 2007
  • Storage characteristics of fresh and thawed sliced raw fish (flounder and rockfish) washed in different solutions (tap water, A; jade water, B; 0.2% chitosan-ascorbate (CA), C; 0.03 ppm ozone water, D; 1.5% vinegar containing jade water, E; 1.5% vinegar and 0.2% CA containing jade water, F) at $10^{\circ}C$ were investigated. Changes in pH and acidity of thawed sliced raw fish (TS) during storage were lower than for fresh sliced raw fish (DS). The total microbial content (log cfu/g) of A stored for 3 days in DS was 6.7 (which represented an increase of 1 log cycle compared with day zero), but was 5.50 in B, 3.23 in C, 4.90 in D, 2.40 in E and 1.77 in F, the latter similar to counts at day zero. The degree of microbial contamination of DS and TS followed the order F > E > D > C > B > A in flounder, and F > E > C > D > B > A in rockfish. In general the hardness and chewiness of TS was less than for DS. While the effect of CA on TS texture was not significant in flounder, the effect showed in rockfish. For DS, the appearance in B, C and D was relatively good, as was freshness. Fishiness of flavor was in the order A > B > F > E > D > C. Overall acceptability of flounder and rockfish treated with C was better than treatment with the other washing agents. For TS the appearance of flounder and rockfish were good in B and C. The freshness of flounder and rockfish were in the order of D > C > B > A > E > F and D > C > B > A > E > F, respectively. Fishiness of the flavor of sliced raw fish was lowest in D, which also provided the best overall acceptability.