• Title/Summary/Keyword: Screening Time

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Test Method for Guided Missile Cable ESS(Environmental Stress Screening) Based on MIL-HDBK-344A (MIL-HDBK-344A 기반의 유도탄 내부 케이블 ESS 시험 방안)

  • Lee, Dae-Hyun;Lee, Jung-Min;Oh, TaeckKeun;Lee, Hong-Beom;Jung, JunYoung
    • Journal of Advanced Navigation Technology
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    • v.25 no.5
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    • pp.313-319
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    • 2021
  • In this paper, the ESS test based on the MIL-HDBK-344A is introduced, and the purpose of the ESS test of the guided missile internal cable, and the specification and test method are confirmed. The ESS test configuration consists of environmental stimulation of temperature circulation and random vibration. Based on the procedure in the handbook, the ESS test specification setting and test configuration of the guided missile internal cable are presented, and the jig for the ESS test of the guided missile internal cable for the vibration test was produced. The probability of detecting a defect determined through the screening strength(SS) was set to match the reliability of a one-time guided missile, and also introduced the inspection method and considerations for the cable inside the guided missile during the ESS test.

Surface Mass Imaging Technique for Nano-Surface Analysis

  • Lee, Tae Geol
    • Proceedings of the Korean Vacuum Society Conference
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    • 2013.02a
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    • pp.113-114
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    • 2013
  • Time-of-flight secondary ion mass spectrometry (TOF-SIMS) imaging is a powerful technique for producing chemical images of small biomolecules (ex. metabolites, lipids, peptides) "as received" because of its high molecular specificity, high surface sensitivity, and submicron spatial resolution. In addition, matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) imaging is an essential technique for producing chemical images of large biomolecules (ex. genes and proteins). For this talk, we will show that label-free mass imaging technique can be a platform technology for biomedical studies such as early detection/diagnostics, accurate histologic diagnosis, prediction of clinical outcome, stem cell therapy, biosensors, nanomedicine and drug screening [1-7].

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Nematocidal Screening of Essential Oils and Herbal Extracts against Bursaphelenchus xylophilus

  • Elbadri, Gamal A.A.;Lee, Dong-Woon;Park, Jung-Chan;Yu, Hwang-Bin;Choo, Ho-Yul;Lee, Sang-Myeong;Lim, Tae-Heon
    • The Plant Pathology Journal
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    • v.24 no.2
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    • pp.178-182
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    • 2008
  • Five essential oils and 15 herbal extracts were evaluated to control Bursaphelenchus xylophillus in laboratory. The essential oils from clove plant (Syzygium aromaticum), mustard (Brassica integrefolia), thyme (Thymus vulgaris), and Pelargonium inquinans were found to be highly promising and gave excellent control of the nematodes at all the time of exposure. Among them, the least one gave 91.3% mean mortality rate at 24 hours of exposure time, which is highly significant from the control. While in the second study, most of the methanol (Desmodium caudatum, Paulownia coreana, Auckulandia lappa, Sophota flavescens, Aloe sp., Rheum palmatum, Zingiber officinale, Magnolia officinalis, and Eugenia caryophyllata), hexane (Torreya nucifera, Pharbitis nil, Prunus mume, Melia azedarach, and Xanthium strumarium), and hot water (Cinnamomum cassia) herbal extracts killed the nematodes, but in varying degrees compared to the control. Only one extract was found to be promising viz Magnolia officinalis which found to be statistically different from the control and gave mean mortality of 72, 82.3, and 85.3 % for 24, 48, and 72 hours exposure, respectively. Further screening was conducted for M. officinalis with concentrations of 1,000, 100, and 10 ppm against the same species of nematode with the same time of exposure. However, it gave an excellent result for 1,000 ppm for all time of exposure, whereas for the 100 and 10 ppm it gave mean mortality of 39.5 and 25.8% for the time 72hrs, respectively that were statistically different from the control.

Epidemiological Features of Human Papillomavirus (HPV) Infection among Women Living in Mainland China

  • Li, Jing;Huang, Rong;Schmidt, Johannes E.;Qiao, You-Lin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.7
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    • pp.4015-4023
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    • 2013
  • Cancer of the cervix is the third most common cancer in women worldwide, more than 85% of the cases occurring in developing countries such as China. In China, since a national cancer registry is already set up but with geographically limited data generated, the burden of cervical cancer is believed to be underestimated. High-risk human papillomavirus (HR-HPV) prevalence among women attending routine cervical cancer screening programs has been shown to correlate well with cervical cancer incidence rates based on independently obtained HPV prevalence data as well as findings for the worldwide cervical cancer burden. Therefore, reviewing data on HR-HPV prevalence in population-based screening studies and hospital-based case studies will be important in the context of better understanding the cervical cancer burden and for the evaluation of the potential impact of HPV vaccination in the country. With the advent of prophylactic vaccines, significant progress is likely to be made in cervical cancer prevention. This article reviews available data on the HPV epidemiology over a 12-year time period (2001-2012) in mainland China under different epidemiological aspects: by age group of study population, by ethnicity, by geographic area, as well as time period. The authors also review the potential acceptability of HPV vaccination among Chinese women.

Enhanced effect extraction of Antioxidant substance Homoorientin from Pseudosasa japonica and Phyllostachys bambusoides leaves using Ultrasonic wave system (초음파를 이용한 이대와 왕대 잎으로부터 항산화물질 Homoorientin의 추출효율 향상)

  • 이광진;신용국;김영식
    • KSBB Journal
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    • v.24 no.2
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    • pp.189-194
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    • 2009
  • In this work, antioxidant substance homoorientin from Pseudosasa japonica and Phyllostachys bambusoides leaves wereextracted using ultrasonic system, and analyzed by reversed-phase high performance liquid chromatography (RP-HPLC) on-line ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) antioxidant screening method. Also, the various experimental variables were the frequency and time of ultrasonic system. From the results, homoorientin was high extracted at the experimental condition of low frequency 35 kHz and time 60 min. And the content of homoorientin in Phyllostachys bambusoides was remarkably higher than that in the Pseudosasa japonica extract.

Normative Data of the Yonsei Dual Task Cognitive Screening Test (Y-DuCog) for Korean Older Adults and Characteristics of Cognitive Function (국내 고령자의 Y-DuCog 표준치, 인지기능에 관한 연구)

  • Kwak, Hosoung
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.4
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    • pp.59-66
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    • 2020
  • Purpose : This study aimed to present normative data for older Korean adults completing the Yonsei dual task cognitive screening test (Y-DuCog) and identify changes in cognitive function on the Montreal Cognitive Assessment - Korean (MoCA-K) with age. Methods : From May 2019 to August 2019, 195 healthy adults aged ≥60 years participated in this study. All participants completed the Y-DuCog to assess their dual-task performance and the MoCA-K to assess their cognitive function. Participants were divided into three groups based on their age: 60~69 years, 70~79 years, and ≥80 years. Results : The results of the Y-DuCog showed that dual-task performance time, effect, and correct response rate decreased significantly with age (p<.001). Scores from the three groups showed differences on all items (p<.001). Cognitive function on the MoCA-K also decreased significantly with age (mean score ± standard deviation [SD]; 27.33 ± 2.61 in subjects aged 60~69 years; 24.82 ± 3.20 in subjects aged 70~79 years; and 22.10 ± 4.91 in subjects aged ≥80 years; p<.001). Conclusions : Occupational therapists should be aware of the decline in cognitive function and dual-task performance time, effect, and correct response rate in older adults and consider interventions to treat this decline. Further studies are needed with larger groups of participants to examine factors, such as sex and education, that may impact dual-task performance and cognitive function.

Comparison of Feasibility of Touch-Based Cognitive Training Games in Community Elderly and Elderly with Minor Dementia

  • Jung, Seung-Hwa;Oh, Seon-Jin;Park, Hyun-Ju;Park, Dae-Sung
    • Physical Therapy Rehabilitation Science
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    • v.11 no.2
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    • pp.154-164
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    • 2022
  • Objective: The purpose of this study is to select a cognitive training game that can evaluate five cognitive domains and to study their validity with existing cognitive evaluation tools. Design: Methods: Delphi survey was conducted through the 2nd questionnaire for 30 experts to select games suitable for training 5 cognitive domains. Five cognitive training games and Mini Mental State Examination - Korea(MMSE-K), and cognitive impairment screening test(CIST) were conducted for 82 elderly in the community. Pearson correlation analysis was performed to find out the correlation of the three tests. The ROC curve was used to calculate the selection criteria for the game results for the screening evaluation of the presence or absence of mild cognitive impairment. Results: The coefficient of variation to evaluate the stability of the Delphi survey was less than 0.50 in most game items. The 'correct answers' and 'level' of the five final selected game items showed a statistically significant positive correlation with the CIST and MMSE-K scores. CIST score and 'time' of all game items except 'number making_time' showed a statistically significant negative correlation. Conclusions: The validity of the cognitive training program using smart devices was evaluated, and the criteria for classifying the cognitive domain and distinguishing the presence or absence of cognitive impairment were confirmed.

Abnormality on Liver Function Test

  • Kang, Ki-Soo
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.16 no.4
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    • pp.225-232
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    • 2013
  • Children with abnormal liver function can often be seen in outpatient clinics or inpatients wards. Most of them have respiratory disease, or gastroenteritis by virus infection, accompanying fever. Occasionally, hepatitis by the viruses causing systemic infection may occur, and screening tests are required. In patients with jaundice, the tests for differential diagnosis and appropriate treatment are important. In the case of a child with hepatitis B virus infection vertically from a hepatitis B surface antigen positive mother, the importance of the recognition of immune clearance can't be overstressed, for the decision of time to begin treatment. Early diagnosis changes the fate of a child with Wilson disease. So, screening test for the disease should not be omitted. Non-alcoholic fatty liver disease, which is mainly discovered in obese children, is a new strong candidate triggering abnormal liver function. Muscular dystrophy is a representative disease mimicking liver dysfunction. Although muscular dystrophy is a progressive disorder, and early diagnosis can't change the fate of patients, it will be better to avoid parent's blame for delayed diagnosis.

A screening study of human factors variables in designing multimedia information retrieval systems (정보습득용 멀티미디어 시스템의 인간공학적 설계변수 선별)

  • 김미정;한성호
    • Proceedings of the ESK Conference
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    • 1995.10a
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    • pp.56-61
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    • 1995
  • Multimedia systems present information by using various media, for example, video, sound, music, animation, movie, etc., in addition to the text which has long been used for conveying the information. Among many multimedia applications, the multimedia information retrieval systems commercialized in the form of multimedia encyclopedia CD-ROMs, benefit by using various media for their ability to present information in an efficient and complete way. But using various media may cause end users' confusion and furthermore, poor user-interface design often exacerbates the systems. For appropriate design of the user interface of multimedia information retrieval systems, we investigated the characteristics of the multimedia information retrieval systems and listed 35 variables that might affect the usability of the user interface. And we selected 10 variables through some procedures such as brainstorming, literature survey, expert opinion, relevance analysis and feasibility analysis, in order to perform a screening study which will remarkably reduce the cost and time in conducting subsequent human factors experiments.

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Reasons for Variation in Sensitivity and Specificity of Visual Inspection with Acetic Acid (VIA) for the Detection of Pre-Cancer and Cancer Lesions of Uterine Cervix

  • Parashari, Aditya;Singh, Veena
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7761-7762
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    • 2013
  • Alternative strategies such as visual inspection of cervix with acetic acid, are real time, economical and easily implemented methods for cervical cancer screening. However, variable sensitivity and specificity have been observed in various community based studies. The possible reasons could include variation in man power training, light source used for visualization, and preparation of diluted (4-5%) acetic acid and its storage. A standardized protocol for training, teaching material (easy to understand in the local language) for trainees, supervision and reinforcement by intermittent and supplementary training to check the quality of their observation, a standard protocol for preparation dilute acetic acid and its storage and a standard good light source (equivalent to day light) are needed to minimize the variation in sensitivity and specificity of VIA in community settings.