77 research outputs found

    Reference-free Coating Thickness Quantification using Laser Thermography under Various Exterior Temperature Conditions

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    This paper presents a reference-free paint-thickness visualization method using thermography. When thermal-waves generated by a continuous-wave laser are applied to a paint-surface, the thermal-waves propagate through the paint-layer and the resultant thermal-waves are measured by an infrared camera. The propagating characteristics of thermal-waves through the paint-layer are altered from the changes on the thickness of paint-layer. Accordingly, the alternation can be mapped as the paint-thickness regardless of varying exterior temperature conditions by analysing the phase and amplitude of the thermal-waves acquired by the infrared camera, and the accuracy of the thickness quantification can be further enhanced by additional image processes

    Bioresorbable intracranial pressure sensors for clinical applications

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    Made available in DSpace on 2018-09-04T20:47:21Z (GMT). No. of bitstreams: 3 SHIN-DISSERTATION-2018.pdf: 10706149 bytes, checksum: 076b7d36ec3e32d13b604e1d8770232d (MD5) LICENSE.txt: 4206 bytes, checksum: 05000b2b1391da56c8d3b9fbd561a96c (MD5) PROQUEST_LICENSE.txt: 4552 bytes, checksum: 3c98c2da813d0b6ec912a6ba17cafbf0 (MD5) Previous issue date: 2018-04-19Embargo set by: Seth Robbins for item 107429 Lift date: 2020-09-04T20:47:38Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107429 Lift date: 2020-09-04T20:50:11Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 107429 on 2020-09-05T09:15:26Z.Monitoring pressure in organ systems such as the brain, eye, and blood vessels form an essential diagnostic basis for assessment of patient health and progression of diseases such as traumatic brain injury, hydrocephalus, glaucoma, and hypertension. Conventional sensor technologies designed for precise, continuous monitoring of pressure are available in the form of accurate, implantable devices that must be surgically extracted after use, the procedures of which are costly and can expose the patient to significant pain and risks for complications. These permanent electronic hardware may also act as a nidus for infection, via biofilm formation along percutaneous wires, and provoke immune-mediated inflammatory responses. Here, we report materials, device structures, and fabrication strategies for bioresorbable pressure sensors, in which all of the constituent materials dissolve in biofluids over well-defined periods of time, with biologically benign end products, that can address these disadvantages.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01The student, Jiho Shin, accepted the attached license on 2018-04-18 at 09:04.The student, Jiho Shin, submitted this Dissertation for approval on 2018-04-18 at 09:46.This Dissertation was approved for publication on 2018-04-19 at 09:25.DSpace SAF Submission Ingestion Package generated from Vireo submission #12336 on 2018-08-31 at 17:29:4
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