• Title/Summary/Keyword: Naked-eye

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PDA Sensors for the Detection of Pathogenic Bacteria and Hazardous Substances (병원성미생물 및 유해물질 검출을 위한 PDA 센서)

  • Lim, Min-Cheol;Kim, Young-Rok
    • Journal of Dairy Science and Biotechnology
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    • v.29 no.2
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    • pp.43-49
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    • 2011
  • The increasing number of analytes in concern and the alarming health and environmental consequences have required effective means of monitoring for safety control. Biosensors offer advantages as alternatives to conventional analytical methods because of their inherent specificity, simplicity, and quick response. Colorimetric biosensor, one of biosensor group, is one of the easiest and the most convenient methods because detection can be done using naked eye. Recently, a novel method for rapid detection and read-out of specific immunoassays with naked eye using polydiacetylene (PDA) was developed. Polydiacetylene has recently been in the limelight as a transducing materials because of its special features that allow optical transduction of sensory signals and inherent simplicity and ease of use in supramolecular chemistry. Various forms of PDA are used as a sensor platform for detection of various biological analytes such as viruses, DNA, proteins, bacteria and hazardous molecules.

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Implementation of Automatic Detection System for CCFL's Defects based on Combined Lighting (조합조명 기반 CCFL 불량판별 자동화 시스템 구현)

  • Moon, Chang-Bae;Ahn, Young-Hoon;Lee, Hae-Yeoun;Kim, Byeong-Man;Oh, Duk-Whan
    • Journal of Korea Society of Industrial Information Systems
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    • v.15 no.2
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    • pp.69-81
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    • 2010
  • A Cold Cathode Fluorescent Lamp(CCFL) is used as a LCD Monitor's backlight widely. The most common way to check CCFL's defects is an examination with the naked eye. This naked eye examination can cause an examination inconsistency and an industrial disaster. To examine CCFL defects, a shooting equipment and a defect detection algorithm are necessary. This paper shows the shooting environments for checking CCFL and presents some CCFL defect detection algorithms. As a result of experiments, our implementations showed 98.32% of successful defect detection of CCFL.

The Effects of Alcohol on Eye Refraction (알코올이 눈의 굴절에 미치는 영향)

  • Lee, Hak-Jun
    • Journal of Korean Ophthalmic Optics Society
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    • v.6 no.2
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    • pp.139-144
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    • 2001
  • This paper was investigated the change of naked visual acuity and the full corrective refractive powers of alcoholicity for 0, 0.05 and 0.1. We research the prescriptions for 9 males and females 9 aged 20 above years. The naked visual acuity was decreased with increasing alcoholicity. Most of tested patients, the spherical refractive powers was also decreased with increasing alcoholicity. The change of the cylinder refractive power was uniformity. For the astigmatism axis. there were many changes.

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Clinical validation of ImmuneCheck IgE for the rapid detection of serum total IgE (총 IgE의 신속한 정량 측정을 위한 ImmuneCheck IgE의 임상적 유용성)

  • Lee, Shinhaeng;Choi, Jinyoung;Choe, Eunju;Lee, Sang Chul;Park, Kyung Hee;Lee, Jae-Hyun;Park, Jung-Won
    • Allergy, Asthma & Respiratory Disease
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    • v.6 no.6
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    • pp.310-314
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    • 2018
  • Purpose: Conventional serum IgE assay was costly, required the skills of expert, and relied heavily on expensive equipment. Quantitative measurement of total IgE using Point of Care Test (POCT) device can be the solution for these limitations. This study evaluated and validated the reproducibility of ImmuneCheck IgE. Methods: This study included 120 patients of allergic diseases such as allergic rhinitis, asthma, drug allergy, food allergy, atopic dermatitis, or anaphylaxis. The reliability of POCT ImmuneCheck IgE was evaluated by comparing results from the naked eye and from the Q-Reader. Intratest reproducibility and intertest correlation were analyzed using intraclass correlation coefficient (ICC). Results: Of the 120 enrolled patients, 51 were males and 69 were females. The ages ranged from 19 to 84 years, with an average age of 51.5 years. The concentration of serum total IgE measured by Phadia ImmunoCAP IgE ranged from 5.95 to 5,000 IU/mL. ICC for Intratest reproducibility of ImmuneCheck IgE by naked eye and by Q-Reader were 0.991 (P< 0.001) and 0.989 (P< 0.001), respectively. In addition, intertest correlation between ImmuneCheck IgE and Phadia ImmunoCAP IgE results of naked eye and Q-Reader were 0.968 (P< 0.001) and 0.948 (P< 0.001), respectively. Conclusion: The ImmuneCheck IgE was reproducible and highly correlated with conventional Phadia ImmunoCAP IgE assay. This result suggests that ImmuneCheck IgE can be a useful tool for rapid and precise detection of total IgE.

Amblyopia Derived from Astigmatism in a Child Improved by Long-term Acupuncture Treatment: A Case Report (난시로 발생된 약시를 가진 소아에 대한 장기간 침 치료 1례)

  • Kim, Jun-Dong;Seo, Gwang-Yeel;Kim, Joong-Ho;Kim, Bong-Hyun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.35 no.1
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    • pp.58-62
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    • 2022
  • Objectives : The aim of this study is to report the effect of long-term acupuncture on a amblyopia derived from astigmatism. Methods : A 39-month-old-female child presented with decreased visual acuity with simple astigmatism and amblyopia in the left eye. She took long-term acupuncture treatment once or twice a week for almost four years. And the autorefractor follow-up were conducted per every 6 months. Results : At the initial visit, naked eye visual acuity was 0.1/0.7(OD/OS), Sph. +0.00D, Cyl. -2.25D, AXIS 148° in the right eye, and Sph. +0.00D, Cyl. -0.25D, AXIS 49° in the left eye. After acupuncture treatment for about 4 years without correctional glasses, the visual acuity of the right eye was 1.0, the right eye had Sph. +0.00D, Cyl -0.50D, AXIS 146°, and the left eye had Sph. -0.25D, Cyl -0.50D, AXIS 154°. The visual acuity was maintained until 1 year follow up as 0.9/1.0(OD/OS). Conclusions : This study shows the possibility of using acupuncture treatment for amblyopia derived from astigmatism.

A Visual Inspection System for Printing Detects using Perimetric Mask and Generalized Symmetry Transform Algorithm (주변 마스크와 일반화 대칭변환 알고리듬을 이용한 인쇄물 검사 시스템)

  • 기명석;이칠우
    • Proceedings of the IEEK Conference
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    • 2000.11d
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    • pp.223-226
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    • 2000
  • In this paper, we report detects system algorithm, adapted a perimetric mask and a generalized symmetry system, to detect a transformable material and find out a minute error cannot be noticed by a naked eye. In this thesis, supposed a stable detecting system applied a general image processing theory and perimetric mash algorithm to detect badness. And finally, detected some vague errors with the application of symmetry transform algorithm that accumulate a symmetry of minute error and put stress on it.

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A Development Auto Inspection System for Panel of Motor Body on the Variable Light Environment (가변 조명 환경에서 차체 패널 자동검사시스템 개발)

  • 이용중;신신범;윤진수;김형조;이양범
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.106-106
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    • 2000
  • This study is to embody automatic inspection system of motor body panel by visual system. since it is inefficient to examine the adhesion condition of components with the naked eye, picture processing algorithm is presented to replace the existing manual inspection process with an automatic inspection process. The developed automatic inspection system presents the examination method of the adhesion condition of components with a ixed camera, which leads to an increase of the productivity and a reduction of manufacturing cost.

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Development Auto Inspection System for Body Panel Using Visual Sensor (시각센서를 이용한 차체 패널 자동검사 시스템 개발)

  • 이용중;이형우;권석근
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2000.10a
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    • pp.51-56
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    • 2000
  • This study is to implement automatic inspection system of motor body panel by visual system. since it is inefficient to examine adhesion condition of components with the naked eye, image processing algorithm is presented to replace the existing manual inspection process with an automatic inspection process the developed automatic inspection system presents tile examination method of the adhesion condition of components with a pixed camera, which leads to an increase of the productivity and a reduction of manufacturing cost

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Eye Movements Produced by the Inferior Oblique Muscle in the Rabbits (가토(家兎)에 있어서 하사근(下斜筋)의 작용(作用)으로 초래(招來)되는 안구운동(眼球運動))

  • Kim, Jae-Hyub
    • The Korean Journal of Physiology
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    • v.11 no.2
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    • pp.73-78
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    • 1977
  • In urethane anaesthetized rabbits, reflex contraction of the inferior oblique muscle of a unilateral rye was evoked by the stimulation of a relevant vestibular canal nerve. Eye movement evoked by the inferior oblique muscle contracion was carefully observed with naked eyes, and recorded by means of the electrooculographic and electronystagmographic methods. The following results were obtained. 1) Contraction of the inferior oblique muscle evoked by a canal nerve excitation produced excycloduction of the eyeball associated with depression (downward rotation) instead of elevation. 2) Such depression of the eyeball was demonstrated even after the resection of the inferior oblique muscle. These experimental evidences indicate that tile rotatory action (secondary action of the muscle) of the inferior oblique muscle in the rabbits is apparently different in its direction from those already reported in the binocular animals such as cat, dog and monkey.

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