• Title/Summary/Keyword: Li Chan

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Correlates of Susceptibility to Smoking among Secondary School Students in Kota Tinggi District, Johor, Malaysia

  • Hock, Lim Kuang;Ghazali, Sumarni Mohd;Cheong, Kee Chee;Kuay, Lim Kuang;Li, Lim Hui;Ying, Chan Ying;Huey, Tay Chien;Yee, Lai Wai;Ying, Ong Shiau;Yen, Yeo Lay;Abdullah, Norhamimah;Wymen, Seet;Ibrahim, Normala
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.11
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    • pp.6971-6978
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    • 2013
  • Background: Smoking among adolescents has been linked to a variety of adverse and long term health consequences. "Susceptibility to smoking" or the lack of cognitive commitment to abstain from smoking is an important predictor of adolescent smoking. In 2008, we conducted a study to determine the psycho-sociological factors associated with susceptibility to smoking among secondary school students in the district of Kota Tinggi, Johor. Materials and Methods: Two thousand seven hundred students were randomly selected by proportional stratified sampling. Analyses on 1,736 non-smoking students revealed that prevalence of adolescents susceptible to smoking was 16.3%. Results: Male gender (aOR=2.05, 95%CI= 1.23-3.39), poor academic achievement (aOR 1.60, 95%CI 1.05-2.44), ever-smoker (aOR 2.17, 95%CI 1.37-3.44) and having a smoking friend (aOR 1.76, 95%CI 1.10-2.83) were associated with susceptibility to smoking, while having the perception that smoking prohibition in school was strictly enforced (aOR 0.55, 95%CI 0.32-0.94), and had never seen friends smoking in a school compound (aOR 0.59, 95%CI 0.37-0.96) were considered protective factors Conclusions: These results indicate that follow-up programmes need to capitalise on the modifiable factors related to susceptibility to smoking by getting all stakeholders to be actively involved to stamp out smoking initiation among adolescents.

Development of active discharge tester for high capacity lithium-ion battery (대용량 리튬 이온 배터리용 Active 방전시험기의 개발)

  • Park, Joon-Hyung;Yunana, Gani Dogara;Park, Chan Won
    • Journal of Industrial Technology
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    • v.40 no.1
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    • pp.13-18
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    • 2020
  • Lithium-ion batteries have a small volume, light weight and high energy density, maximizing the utilization of mobile devices. It is widely used for various purposes such as electric bicycles and scooters (e-Mobility), mass energy storage (ESS), and electric and hybrid vehicles. To date, lithium-ion batteries have grown to focus on increasing energy density and reducing production costs in line with the required capacity. However, the research and development level of lithium-ion batteries seems to have reached the limit in terms of energy density. In addition, the charging time is an important factor for using lithium-ion batteries. Therefore, it was urgent to develop a high-speed charger to shorten the charging time. In this thesis, a discharger was fabricated to evaluate the capacity and characteristics of Li-ion battery pack which can be used for e-mobility. To achieve this, a smart discharger is designed with a combination of active load, current sensor, and temperature sensor. To carry out this thesis, an active load switching using sensor control circuit, signal processing circuit, and FET was designed and manufactured as hardware with the characteristics of active discharger. And as software for controlling the hardware of the active discharger, a Raspberry Pi control device and a touch screen program were designed. The developed discharger is designed to change the 600W capacity battery in the form of active load.

Wrist Wearable Device for the Measurement and Analysis of Physiological Signals (생체신호 측정 및 분석을 위한 손목 착용형 단말기)

  • Im, Jae Joong;Li, Ming Kui;Hwang, Chan Song
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.12 no.6
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    • pp.65-73
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    • 2012
  • Wrist wearable device for the measurement of pulse rate, ECG, and activity during normal daily life, which could be used for the continuous monitoring and remote transmission of acquired data, was developed. Pressure sensor, device attached electrodes, and 3-degree accelerometer were used. Analysis algorithm and firmware program were established for providing diagnostic information for the users. Results of this study, possible for the management of health report and transmission of the results through bluetooth by wearing simple personal wrist device, could be used for the development of portable device in the u-healthcare environment.

A Hardware Design of Feature Detector for Realtime Processing of SIFT(Scale Invariant Feature Transform) Algorithm in Embedded Systems (임베디드 환경에서 SIFT 알고리즘의 실시간 처리를 위한 특징점 검출기의 하드웨어 구현)

  • Park, Chan-Il;Lee, Su-Hyun;Jeong, Yong-Jin
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.46 no.3
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    • pp.86-95
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    • 2009
  • SIFT is an algorithm to extract vectors at pixels around keypoints, in which the pixel colors are very different from neighbors, such as vertices and edges of an object. The SIFT algorithm is being actively researched for various image processing applications including 3D image reconstructions and intelligent vision system for robots. In this paper, we implement a hardware to sift feature detection algorithm for real time processing in embedded systems. We estimate that the hardware implementation give a performance 25ms of $1,280{\times}960$ image and 5ms of $640{\times}480$ image at 100MHz. And the implemented hardware consumes 45,792 LUTs(85%) with Synplify 8.li synthesis tool.

A Study on the Principles of Prescriptions of the King Fire and the Premier Fire of Saam Acupuncture (사암침법(舍岩鍼法) 화열문(火熱門)의 군화방(君火方)과 상화방(相火方)에 대한 연구)

  • Sagong, Hee chan;Lim, Lark cheol;Kang, Jung Soo
    • Journal of Haehwa Medicine
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    • v.13 no.1
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    • pp.27-38
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    • 2004
  • Saam acupuncture has an evident principles of prescription based on acupuncture tonification and purgation of Nan-gyeong but many prescriptions of Saam acupuncture are not typical patterns. Therefore it is difficult to understand principles of those prescriptions. Understanding the principles of any prescription means understanding the physiology and pathology of that prescription and it have an important role in selecting the best prescription and taking the most effective treatment. This paper studies principles of prescriptions of the king fire and the premier fire. The theoretical authorities of analysis are Nan-gyeong, works of Joo dan-gye and Li dong-won and Uihakimmun. The damage of fire to mentality is very intensive and severe. The prescriptions of the king fire and premier fire have a good effect on diseases by fire. The fire of human body are two types, the king fire and the premier fire but the water of human body is only one and then inferior to fire. The fire superior to the water is unstable and the fire influences rapidly and intensively on four elements, wood, earth, metal, water. So the control of the water is the key to treat the disease by fire. Considering the attack and the treatment of disease, heart and liver are attacked with a disease by fire in its early stage and kidney and lung are the key to treatment. Consequently the pathology of the disease by fire is corresponding to the theory- Yang Sufficient, Yin Deficient- of Joo dan-gye. It seems that the theory of Joo dan-gye influenced on the medical theory of Saam Acupuncture. On that account I believe that the study of medical theories of the Geum and Won Dynasty that various medical theories appeared is very available.

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An Action Unit co-occurrence constraint 3DCNN based Action Unit recognition approach

  • Jia, Xibin;Li, Weiting;Wang, Yuechen;Hong, SungChan;Su, Xing
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.3
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    • pp.924-942
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    • 2020
  • The facial expression is diverse and various among persons due to the impact of the psychology factor. Whilst the facial action is comparatively steady because of the fixedness of the anatomic structure. Therefore, to improve performance of the action unit recognition will facilitate the facial expression recognition and provide profound basis for the mental state analysis, etc. However, it still a challenge job and recognition accuracy rate is limited, because the muscle movements around the face are tiny and the facial actions are not obvious accordingly. Taking account of the moving of muscles impact each other when person express their emotion, we propose to make full use of co-occurrence relationship among action units (AUs) in this paper. Considering the dynamic characteristic of AUs as well, we adopt the 3D Convolutional Neural Network(3DCNN) as base framework and proposed to recognize multiple action units around brows, nose and mouth specially contributing in the emotion expression with putting their co-occurrence relationships as constrain. The experiments have been conducted on a typical public dataset CASME and its variant CASME2 dataset. The experiment results show that our proposed AU co-occurrence constraint 3DCNN based AU recognition approach outperforms current approaches and demonstrate the effectiveness of taking use of AUs relationship in AU recognition.

Anti-Inflammatory and Antioxidant Effects of Clam Worm Extract in Macrophage RAW264.7 Cells (갯지렁이와 지렁이 추출물의 항염증 및 항산화 효과 비교)

  • Kim, Se-woong;Sapkota, Mahesh;Li, Liang;Yang, Ming;Park, Chan-il;Soh, Yunjo
    • Korean Journal of Pharmacognosy
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    • v.47 no.2
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    • pp.150-157
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    • 2016
  • Earth worm (Eisenia andrei) and clam worm (Perinereis linea) have been used as anti-bacterial and anti-inflammatory agent. However, it is unclear how they exerted their physiological effects in macrophages. In this experiment, the anti-inflammatory and antioxidant effects of clam worm extract (CWE) and earth worm extract (EWE) in RAW264.7 cells were examined by measuring MDA, catalase, SOD, GSH-Px and inflammatory cytokines (nitric oxide, iNOS, interleukin-$1{\beta}$ and tumor necrosis factor-${\alpha}$). Treatment with CWE significantly increased the activities of catalase, SOD and GSH-Px in RAW264.7 cells and decreased the level of MDA. Interestingly, treatment with CWE induced more activities of SOD than EWE. In addition, CWE decreased NO production, iNOS, COX-2, TNF-${\alpha}$ and IL-$1{\beta}$ in RAW264.7. The EWE also decreased NO production and iNOS, but increased COX-2 and IL-$1{\beta}$ suggesting that CWE could be better resources for anti-inflammatory and antioxidant agent than EWE. Taken together, these results indicate that CWE has the potential as a natural antioxidant and a therapeutic for inflammation-related diseases.

The Prevalence and Genotype of Human Papillomavirus from Patients with Genital Warts in Eastern Guangdong Province

  • Luo, Zhao-Yun;Chen, Qiang;Yang, Hui;Lin, Min;Chen, Chan-Yu;Yang, Chun;Yang, Li-Ye
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.14
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    • pp.5675-5679
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    • 2015
  • Background: Low-risk human papillomavirus (LR-HPV) infection is the main cause of genital warts. LRHPV genotypes 6 and 11 are associated with genital warts, but there have only been a few published studies about the genotype-specific prevalence of HPV in genital warts in China. The objective of our study was to assess the prevalence of HPV genotypes for clinical cases involving both men and women and to evaluate the potential benefit of a quadrivalent (genotypes 6, 11, 16, and 18) HPV vaccine in eastern Guangdong province of China. Materials and Methods: A total of 696 eligible patients with genital warts were enrolled during the period Aug 2009 through Oct 2014. Specimens were collected from genital warts, the HPV GenoArray test was used for HPV detection and genotyping, which could detect 21 HPV genotypes, including genotypes 6, 11, 16, and 18. Results: Among the 696 cases, 675 samples were successfully genotyped. The median age of patients was 32.1 years (range, 16-67 years). The most prevalent genotypes were HPV-6 (285/675, 42.2%), HPV-11 (265/675, 39.3%), HPV-52 (52/675, 7.7%), HPV-16 (51/675, 7.56%), HPV-81 (50/675, 7.40%) and HPV-58 (37/675, 5.48%). Low-risk genotypes predominated, with a prevalence of 96.59%. The cumulative prevalence of genotypes 6 and 11 was 78.7% (531/675), the cumulative prevalence of genotypes 16 and 18 was 11.6% (78/675), and the cumulative prevalence of genotypes 6, 11, 16, and 18 was 82.5% (557/675). Conclusions: Our results provide strong evidence that, in eastern Guangdong, different from Western countries, the most prevalent low risk HPV genotypes in patients with genital warts are 6, 11 and 81. The quadrivalent HPV vaccine could prevent 82.5% of genital warts in eastern Guangdong.

Development and Application of Telephone Counseling Services for Care of Patients with Colorectal Cancer

  • Lin, Wen-Li;Sun, Jia-Ling;Chang, Shu-Chan;Wu, Pei-Hua;Tsai, Tsung-Chih;Huang, Wen-Tsung;Tsao, Chao-Jung
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.2
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    • pp.969-973
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    • 2014
  • Background: The number of colorectal cancer (CRC) patients in Taiwan has increased in recent years; therefore, the effective dissemination of information related to symptom care has become especially important. Previous studies indicated that the physical and psychological status of cancer patients can be effectively improved by telephone counseling services (TCS). Thus, determining the most effective means of establishing a TCS to support the clinical practice of oncology has become a crucial goal for nursing. The purposes of this study were to analysis the content of the TCS for CRC and explore stratification of the TCS. Materials and Methods: The study design was retrospective. A total of 850 calls were made to CRC patients in the cancer center of Southern Taiwan during the period of January 2007- December 2011. A structure questionnaire was adopted to analysis satisfaction. Results: Responses provided by the TCS included information regarding nutrition, side effects resulting from chemotherapy and pain. Moreover, 28.7% of CRC patients needed advanced treatment. More than 90% satisfaction with all aspects of the calls was found. Conclusions: The TCS coulkd be shown to provide an effective means by which to expand the reach of nursing care to different times, places and patients, allowing for greater cost efficiency and more rapid service.

Experimental Study on the Behavior of Hybrid Beam-Column Joints Consisted of Reinforced Concrete Column and Steel Beam (철근콘크리트 기둥 및 철골보로 구성된 복합구조의 접합분 거동에 관한 실험적 연구)

  • Choi, Keun-Do;You, Young-Chan;Lee, Li-Hyung
    • Journal of the Korea Concrete Institute
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    • v.15 no.2
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    • pp.297-304
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    • 2003
  • This paper presents the test results of RCS(Reinforced Concrete Steel) beam-column joint with various types of transverse reinforcements such as small-column-type transverse reinforcements, four-piece ㄱ-shape assembled hoops and four-piece ㄱ-shape welded hoops. Five interior beam-column joint specimens were tested to examine the seismic performance and the shear strengths. From the test results, it was found that all the specimens sustained their strength at large levels of story drift(${\theta}$=0.035) without significant loss of strength and stiffness. Therefore it was concluded that the seismic performance and shear strength of the proposed RCS joint are at least the same as those of the specimen with conventional reinforcing details. Also, the contribution of the outer panel to the shear strength of the joint should be evaluated by the compression strut mechanism rather than compression field mechanism.