• Title/Summary/Keyword: Activity recognition

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Galectin-1 from redlip mullet Liza haematocheilia: identification, immune responses, and functional characterization as pattern recognition receptors (PRRs) in host immune defense system

  • Chaehyeon Lim;Hyukjae Kwon;Jehee Lee
    • Fisheries and Aquatic Sciences
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    • v.25 no.11
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    • pp.559-571
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    • 2022
  • Galectins, a family of ß-galactoside-binding lectins, have emerged as soluble mediators in infected cells and pattern recognition receptors (PRRs) responsible for evoking and regulating innate immunity. The present study aimed to evaluate the role of galectin-1 in the host immune response of redlip mullet (Liza haematocheilia). We established a cDNA database for redlip mullet, and the cDNA sequence of galectin-1 (LhGal-1) was characterized. In silico analysis was performed, and the spatial and temporal expression patterns in gills and blood in response to lipopolysaccharide polyinosinic:polycytidylic acid, and Lactococcus garvieae were estimated via quantitative real-time PCR. Functional assays were conducted using recombinant protein to investigate carbohydrate binding, bacterial binding, and bacterial agglutination activity. LhGal-1 was composed of 135 amino acids. Conserved motifs (H-NPR, -N- and -W-E-R) within the carbohydrate recognition domain were found in LhGal-1. The tissue distribution revealed that the healthy stomach expressed high levels of LhGal-1. The temporal monitoring of LhGal-1 mRNA expression in the gill and blood showed its significant upregulation in response to immune challenges with different stimulants. rLhGal-1 exhibited binding activity in response to carbohydrates and bacteria. Moreover, the agglutination of rLhGal-1 against Escherichia coli was observed. Collectively, our findings suggest that LhGal-1 may function as a PRR in redlip mullet. Furthermore, LhGal-1 can be considered a significant gene to play a protective role in redlip mullet immune system.

A Study on the Recognition of Parent and Kindergarten Teacher Toward the Traditional Fairy Tales (부모와 유치원 교사의 전래동화에 대한 인식)

  • 김영주;유안진;공인숙;한미현
    • Journal of Families and Better Life
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    • v.20 no.2
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    • pp.185-191
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    • 2002
  • The Purposes of this study were to improve the understanding of how the Korean traditional fairy tales were recognized, by examining the recognition of parent and teacher toward the traditional fairy tales, and to serve as the basis for teacher and parent to guide children appropriately, by developing a desirable teaching activity, using the Korean traditional fairy tales. The subject in this study were 238 parents, and 77 kindergarten teachers in Seoul, Sunchon, Chonan, Ichon and Ulsan city. And the questionnaire was used. The collected data were handled by frequency, percentage and t-test. The findings of this study were as below: These Parents and teachers thought the Korean traditional fairy tales are appropriate because of moral, ethical values, and knowledge. On the older hand, they thought these are inappropriate because of unrealistic things or image.

A Study on the Pattern Recognition Rate of Partial Discharge in GIS using an Artificial Neural Network

  • Kang Yoon-Sik;Lee Chang-Joon;Kang Won-Jong;Lee Hee-Cheol;Park Jong-Wha
    • KIEE International Transactions on Electrophysics and Applications
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    • v.5C no.2
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    • pp.63-66
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    • 2005
  • This paper describes analysis and pattern recognition techniques for Partial Discharge(PD) signals in Gas Insulated Switchgears (GIS). Detection of PD signals is one of the most important factors in the predictive maintenance of GIS. One of the methods of detection is electro magnetic wave detection within the Ultra High Frequency (UHF) band (300MHz $\~$ 3GHz). In this paper, PD activity simulation is generated using three types of artificial defects, which were detected by a UHF PD sensor installed in the GIS. The detected PD signals were performed on three-dimensional phi-q-n analysis. Finally, parameters were calculated and an Artificial Neural Network (ANN) was applied for PD pattern recognition. As a result, it was possible to discriminate and classify the defects.

Human Activities Recognition Based on Skeleton Information via Sparse Representation

  • Liu, Suolan;Kong, Lizhi;Wang, Hongyuan
    • Journal of Computing Science and Engineering
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    • v.12 no.1
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    • pp.1-11
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    • 2018
  • Human activities recognition is a challenging task due to its complexity of human movements and the variety performed by different subjects for the same action. This paper presents a recognition algorithm by using skeleton information generated from depth maps. Concatenating motion features and temporal constraint feature produces feature vector. Reducing dictionary scale proposes an improved fast classifier based on sparse representation. The developed method is shown to be effective by recognizing different activities on the UTD-MHAD dataset. Comparison results indicate superior performance of our method over some existing methods.

Optimization of State-Based Real-Time Speech Endpoint Detection Algorithm (상태변수 기반의 실시간 음성검출 알고리즘의 최적화)

  • Kim, Su-Hwan;Lee, Young-Jae;Kim, Young-Il;Jeong, Sang-Bae
    • Phonetics and Speech Sciences
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    • v.2 no.4
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    • pp.137-143
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    • 2010
  • In this paper, a speech endpoint detection algorithm is proposed. The proposed algorithm is a kind of state transition-based ones for speech detection. To reject short-duration acoustic pulses which can be considered noises, it utilizes duration information of all detected pulses. For the optimization of parameters related with pulse lengths and energy threshold to detect speech intervals, an exhaustive search scheme is adopted while speech recognition rates are used as its performance index. Experimental results show that the proposed algorithm outperforms the baseline state-based endpoint detection algorithm. At 5 dB input SNR for the beamforming input, the word recognition accuracies of its outputs were 78.5% for human voice noises and 81.1% for music noises.

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Robust Speech Recognition Using Weighted Auto-Regressive Moving Average Filter (가중 ARMA 필터를 이용한 강인한 음성인식)

  • Ban, Sung-Min;Kim, Hyung-Soon
    • Phonetics and Speech Sciences
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    • v.2 no.4
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    • pp.145-151
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    • 2010
  • In this paper, a robust feature compensation method is proposed for improving the performance of speech recognition. The proposed method is incorporated into the auto-regressive moving average (ARMA) based feature compensation. We employ variable weights for the ARMA filter according to the degree of speech activity, and pass the normalized cepstral sequence through the weighted ARMA filter. Additionally when normalizing the cepstral sequences in training, the cepstral means and variances are estimated from total training utterances. Experimental results show the proposed method significantly improves the speech recognition performance in the noisy and reverberant environments.

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Factors of Welfare Recognition toward Health Insurance and Health Care: Using 2013 Korea Welfare Panel Study (건강보험 및 보건의료에 대한 복지인식에 영향을 주는 요인: 2013년 한국복지패널 자료를 이용하여)

  • Park, Young-Hee
    • The Korean Journal of Health Service Management
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    • v.9 no.3
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    • pp.115-126
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    • 2015
  • Objectives : This research was performed to investigate the characteristics and determination factors of health care policy satisfaction and welfare recognition for health insurance & health care financing. Methods : The utilized data were 4,174 cases who responded to a welfare recognition survey in the 8th wave of the Korea Welfare Panel Study (2013). The statistical methodology used in this study is the multiple regression model. Results : The significant affecting factors of health care policy satisfaction were age, education, household income, welfare attitudes, and health status. Medical utilization & private medical insurance were not related to health care policy satisfaction. The affecting factors of health insurance reinforcement were age, health status, welfare attitudes. The affecting factors of health care financing expansion were age, economic activity type, medical utilization, welfare attitudes. The affecting factors of welfare attitudes were age, economic activity type, household income, health insurance, and health status. Conclusions : Health care policy satisfaction, health insurance reinforcement, and health care financing expansion were all affected by age and welfare attitude; but this was not the case for private health insurance. This study recommended that the Korean government provide active planning for reinforcement of health insurance and publicity of the health care system in order to accord with the prospects of people.

A Recognition Study of how Child Care Teachers Implicate National Competency Standards (국가직무능력표준(NCS)에 대한 보육교사의 인식 연구)

  • Im, Kyung Ae;Choi, Hyun Jung
    • Korean Journal of Childcare and Education
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    • v.13 no.1
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    • pp.215-232
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    • 2017
  • Objective: The purpose of this study is to explore the ways in which childcare teachers understand and implicate the standards of national competency by searching for and analyzing the awareness of it. Methods: For this, the survey was conducted on 264 child care teachers working in daycare centers. The screening tool was constructed based on the content provided in the child care field of the NCS, and the questionnaire items were developed by referring to previous research. Results: Recognition of the child care teacher's awareness of the NCS was very low. The activity of child care teachers for the category of capability proposed by the NCS showed significant differences depending on work experience. The degree of awareness of child care teachers for the category of capability proposed by the NCS showed significant differences depending on work experience. The difference between the activity of child care teachers and the degree of awareness of child care teachers for the category of capability proposed by the NCS showed significant differences. Conclusion: In the future, it is necessary for the NCS to be constantly supplemented and ensure that the capability to perform practical functions is fulfilled in daycare centers.

Improving Performance of Human Action Recognition on Accelerometer Data (가속도 센서 데이터 기반의 행동 인식 모델 성능 향상 기법)

  • Nam, Jung-Woo;Kim, Jin-Heon
    • Journal of IKEEE
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    • v.24 no.2
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    • pp.523-528
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    • 2020
  • With a widespread of sensor-rich mobile devices, the analysis of human activities becomes more general and simpler than ever before. In this paper, we propose two deep neural networks that efficiently and accurately perform human activity recognition (HAR) using tri-axial accelerometers. In combination with powerful modern deep learning techniques like batch normalization and LSTM networks, our model outperforms baseline approaches and establishes state-of-the-art results on WISDM dataset.

Effects of Chongmyung-tang on Learning and Memory Performances in Mice

  • Lee, Seoung-Hee;Chang, Gyu-Tae;Kim, Jang-Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.2
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    • pp.471-476
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    • 2006
  • Chongmyung-tang(CMT, 聰明湯), oriental herbal medicine which consists of Polygaglae Radix(遠志), Acori Graminei Rhizoma(石菖蒲) and Hoelen(白茯神) has effect on amnesia, dementia. In order to evaluate effect of CMT on memory and learning in mice, CMT extract was used for studies. This paper describes the effects of CMT extract on memory and learning processes by using the passive and active avoidance performance tests, novel object recognition task and water maze task. The CMT extract ameliorated the memory retrieval deficit induced by ethanol in the passive avoidance responses but did not affect ambulatory activity of normal mice. These results suggest that CMT has an ameliorating effect on memory retrieval impairment. CMT extract decreased spontaneous motor activity(SMA) in the latter sessions of memory registration in active avoidance responses. These results suggest that CMT has partly transquilizing or antianxiety effects. In novel object recognition task to measure visual recognition memory, CMT-administered mice enhanced in long term memory for 1-3 days. In water maze task to measure spatial learning, which requires the activation of NMDA receptors in the hippocampus, spatial learning in CMT-administered mice was faster than in wild-type mice. These results suggest that CMT enhances memory and activates NMDA receptors.