• Title/Summary/Keyword: Cure monitoring

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Molding Quality Evaluation on Composite Laminate Panel for Railway Vehicle through Cure Monitoring using FBG Sensors (광섬유 FBG 센서기반 성형 모니터링을 통한 철도 차량용 복합재 내장재 패널의 성형 품질 평가)

  • Juyeop Park;Donghoon Kang
    • Composites Research
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    • v.36 no.3
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    • pp.186-192
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    • 2023
  • Recently, in the field of railway vehicles, interest in the use of composite materials for weight reduction and transportation efficiency is increasing. Accordingly, research and commercialization development to apply composite materials to various vehicle parts are being actively conducted, and evaluation is conducted centering on post-measurement such as mechanical performance evaluation of finished products to verify quality when composite materials are applied. However, the analysis of heat and stress generated during the molding process of composite materials, which are factors that greatly affect manufacturing quality, is insufficient. Therefore, in this study, in order to verify the molding quality of composite parts for railway vehicles, the molding quality analysis was conducted for the two types of composite interior panels (laminate panel and sandwich panel) that are most actively used. To this end, temperature and strain changes were monitored during the molding process by using an FBG fiber optic sensor, which is easy to apply to the inside of the composite, and the residual strain value generated after molding was completed was measured. As a result, it was confirmed that overheating and excessive residual stress did not occur, thereby verifying the excellent molding quality of the composite interior panel for railway vehicles.

The Fabrication Method of Fiber Bragg Grating Sensor with Various Grating Length and Signal Characteristics of Reflected Spectra with Grating Length (다양한 격자 길이를 갖는 광섬유 브래그 격자 센서의 제작 기법과 격자 길이에 따른 반사 스펙트럼 특성 연구)

  • 강동훈;홍창선;김천곤
    • Composites Research
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    • v.17 no.4
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    • pp.32-39
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    • 2004
  • Among many fiber optic sensors, FBG sensors are being studied more actively than any other sensor due to good multiplexing capabilities. Recently, the application fields of FBG sensors are mainly focused on the composite materials through embedding rather than attaching on the surface. However, there are many limitations on the embedding FBG sensors into composite materials because of the birefringence effects which is induced when FBG sensors are not embedded parallel to the reinforcing fiber. In this study, the fabrication method of FBG sensors with various grating length that are easy to fabricate with good multiplexing capabilities and more stable from the birefringence effects are investigated. The signal characteristics of the FBG sensors are also verified through the cure monitoring of 2 kinds of composite materials.

Chronic Myeloid Leukemia - Prognostic Value of Mutations

  • Kaleem, Bushra;Shahab, Sadaf;Ahmed, Nuzhat;Shamsi, Tahir Sultan
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.17
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    • pp.7415-7423
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    • 2015
  • Chronic myeloid leukemia (CML) is a stem cell disorder characterized by unrestricted proliferation of the myeloid series that occurs due to the BCR-ABL fusion oncogene as a result of reciprocal translocation t(9;22) (q34;q11). This discovery has made this particular domain a target for future efforts to cure CML. Imatinib revolutionized the treatment options for CML and gave encouraging results both in case of safety as well as tolerability profile as compared to agents such as hydroxyurea or busulfan given before Imatinib. However, about 2-4% of patients show resistance and mutations have been found to be one of the reasons for its development. European Leukemianet gives recommendations for BCR-ABL mutational analysis along with other tyrosine kinase inhibitors (TKIs) that should be administered according to the mutations harbored in a patient. The following overview gives recommendations for monitoring patients on the basis of their mutational status.

The Importance of Nutritional Assessment and Dietary Counseling in Infants and Young Children with Common Illnesses (소아의 흔한 질병 상황에서 식이, 영양의 중요성)

  • Jeong, Su-Jin
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.14 no.1
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    • pp.33-44
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    • 2011
  • The influence of nutrition during early life on physical growth as well as mental development has been thoroughly discussed in the literature. The physical dimensions of the body are greatly influenced by nutrition, particularly during the period of rapid growth in early childhood. Nutritional status affects every pediatric patient's response toillness. Good nutrition is important for achieving normal growth and development. It is indicated that permanent impairment of the central nervous system may result from dietary restriction of imbalance during certain periods of life. If children under 3 years of age show a good nutritional status, it may be assumed that they are well nourished. Several common diseases of children such as iron deficiency, chronic constipation and atopic dermatitis are known food related diseases. Patients with chronic illness and those at risk of malnutrition should have detailed nutritional assessments done. Components of a complete nutritional assessment include a medical history, nutritional history including dietary intake, physical examination, anthropometrics (weight, length or stature, head circumference, midarm circumference, and triceps skinfold thickness), pubertal staging, skeletal maturity staging, and biochemical tests of nutritional status. The use of age, gender, and disease-specific growth charts is essential in assessing nutritional status and monitoring nutrition interventions. Nutrition assessment and dietary counseling is helpful for the cure of disease, and moreover, the prevention of illness.

Mobile u-healthcare system in IEEE 802.15.4 WSN and CDMA network environments

  • Toh, Sing-Hui;Lee, Seung-Chul;Lee, Hoon-Jae;Do, Kyeong-Hoon;Chung, Wan-Young
    • Journal of Sensor Science and Technology
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    • v.18 no.5
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    • pp.337-342
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    • 2009
  • This paper describes a robust mobile u-healthcare system with multiple physiological signs measurement capability in real time with integration of WSN(wireless sensor network) technology and CDMA(code division multiple access) network. A cellular phone receives health data in WSN and performs local physiological signs analysis at a phone processor, and then transmits abnormal data to server for further detail or precise health signal evaluation by a medical doctor over a CDMA network. Physiological signs of the patients are continuously monitored, processed and analyzed locally at cellular phone process to produce useful medical information for diagnosis and tracking purposes. By local simple analysis in cellular phone processor we can save the data transmission cost in CDMA network. By using the developed integrate ubiquitous healthcare service architecture, patients can realize self-health checking so that the prevention actions can be taken earlier. Appropriate self-monitoring and self-management can cure disease and relieve pain especially for patients who suffer from chronic diseases that need long term observation.

A Study on the Management System of Bioterrorism by the Phases of Crisis Management (위기관리단계별 생물테러 관리체계에 관한 연구)

  • Kim, Chang-Ho;Lee, Kwang-Lyeol
    • Korean Security Journal
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    • no.13
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    • pp.113-144
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    • 2007
  • The entire world has lived in terror threatened by new-terrorism since the 9.11 terror. Having appeared since 9.11, new-terrorism is new kind of terror targeting victims at random. Bioterrorism is one good example. Since bioterrorism happens secretly, it's hard to identify. The case becomes even harder to detect if it takes the form of a new epidemic. This study set out to apply the four phases of crisis management regarding outbreak and measures of SARS, the latest new epidemic, and to prepare against bioterrorism taking the form of a new epidemic, It also shows the efforts to study what to prepare and what kind of actions to take in case of bioterrorism by applying the four phases. There results demonstrate that the preventive measures against bioterrorism include arranging terror-related laws and identifying and monitoring expected pathogenic organs. In the preparation phases, they should integrate the related agencies, prepare for the standard operating procedures(SOP), execute integrated training sessions among the related agencies, and secure the necessary resources such as vaccine, cures, and exploration devices. In the response phases, they need to set up a rapid diagnosis system, quarantine and then cure the patients, and pursue cooperation from the media and promotions and further an international cooperation system to take appropriate measures. And the final recovery phases should involve offering emergency support by checking the situations and engaging in activities to prevent another terror attack by providing counseling, exchanging information, and analyzing and evaluating the causes.

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Analysis of ITX from Commercial Carton Packs in Korean Market (국내 유통 종이팩 포장재 중 Isopropylthioxanthone(ITX) 분석)

  • Eom, Mi-Ok;Yoon, Hae-Jung;Choi, Hyun-Cheol;Jeon, Dae-Hoon;Kim, Hyung-Il;Sung, Jun-Hyun;Park, Na-Young;Lee, Eun-Joon;Sung, Duk-Hwa;Lee, Young-Ja
    • Journal of Food Hygiene and Safety
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    • v.22 no.2
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    • pp.88-92
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    • 2007
  • Isopropylthioxanthone(ITX) is used as a photoinitiator In UV-cured inks, triggering the radical polymerization of the acrylic component of such inks and thus causing the liquid ink film to cure. Recently ITX was detected in carton packed food in Italy. In order to cope with risk issues of overseas and acquire monitoring data on ITX, we have established the method using HPLC/FLD for ITX analysis after reviewing parameters of the analytical methods. Limit of detection (LOD) and limit of quantification (LOQ) were 0.02 ppb and 0.1 ppb, and linearity and RSD (%) were 0.9991 and 1.09, respectively. We have investigated ITX levels migrated to food on 87 commercial products packed in carton and ITX was not detected any food. Therefore it is supposed that UV-cured ink containing ITX as photoinitiator is not currently used in printing of carton pack in Korea.

Risk associated with Adverse Events of Folk Medicine Reported in the Internet News Articles (인터넷 신문기사로 본 민간요법 유해사례의 위험성)

  • Park, Jeong Hwan;Mun, Sujeong;Kim, Sungha;Bae, Eun Kyung;Lee, Sanghun
    • The Journal of the Korea Contents Association
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    • v.15 no.1
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    • pp.357-365
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    • 2015
  • Folk medicine is traditionally passed down to cure disease, and adverse events (AEs) of folk medicine are any unfavorable and unintended discomforts temporally associated with the use of folk medicine. The aim of this study was to analyze AEs types and risks of folk medicine through the internet news articles. Included in this analysis are all articles on the topic of folk medicine and AE reported in the top 3 online news websites (NAVER, DAUM and NATE) determined by InternetTrend$^{TM}$(www.internettrend.co.kr). It was searched in the last five years (between 1 January 2009 and 28 February 2014). In total, 18 AEs articles of 973 news articles met our inclusion criteria. A total of 27 people were experienced AEs associated with use of folk medicine. Age was from 4 months to 76 years old, and it was occurred in both men and women. Folk medicine that caused AEs in twice or more was therapy that patient taking the dictamnus or aconitum of toxic herbal medicines, vinegar therapy of external use to topical skin, and cupping or bee sting therapy by practitioners. Death as a kind of serious AEs was 11 people, and 10 people were died after treatment by unqualified practitioner. Folk medicine that is popular and widely used in Korea is actively interacted with information on the internet, so it apt to misuse and abuse without guidance of health professionals. Aspects of health care system, we point out that the need for government and medical society establish not only correct health information plan and promotion of risk but also system as reporting and monitoring of AEs by folk medicine.