CLEANING PERFORMANCE OF MEGASONIC MULTI-FREQUENCY OPERATING IN THICKNESS MODE TRANSDUCERS
Published In: 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN APPLIED SCIENCE AND ENVIRONMENTAL TECHNOLOGY
Author(s): M.J. GOODSON , T. SEBASTIAN , TERRY LIM , VETRIMURUGAN
Abstract: A multi-frequency megasonic system (360/470 kHz) with thickness mode transducers was developed to remove the nano-dimensional and sub-micron particles more effectively from various surfaces and the results obtained are compared with the conventional megasonic system operating with only single frequency. The multi-frequency transducers are piezoelectric transducers operating in thickness mode at different operating frequencies. To assess cleaning ability, the maximum cleaning potential tests were performed and almost 30% cleaning improvement was achieved as compared to 470 kHz and almost 4% improvement was achieved as compared to 360 kHz megasonic system operating with thickness mode transducers for the parts tested. Uniformity of the multi-frequency megasonic cleaning system was measured using ppbTM probe. The results revealed that the cavitation activity was more uniform throughout the entire cleaning system even at the edges and corners of the system employing multi-frequency. The un
- Publication Date: 08-May-2016
- DOI: 10.15224/978-1-63248-097-2-44
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DETECTION AND HAPLOTYPE ANALYSIS OF DEFECTIVE APOLIPOPROTEIN B-100 R3500Q MUTATION IN FAMILIAL HYPERCHOLESTEROLEMIA IN VIETNAMESE PATIENTS BY AS-PCR (ALLELE SPECIFIC PCR)
Published In: 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN APPLIED SCIENCE AND ENVIRONMENTAL TECHNOLOGY
Author(s): LAO DUC THUAN , LE HUYEN AI THUY , TRUONG KIM PHUONG
Abstract: Familial defective Apolipoprotein B-100 (Apo B-100) was caused by the R3500Q mutation of the Apo B gene resulting in a glutamine substitution for the arginine residue, consequently, decreased binding of LDL to the LDL receptor. In current study, a total of 40 blood samples were collected from hyperlipidemia, which were confirmed by the concentration of cholesterol over 5.2 mmol/L. AS PCR (allele specific PCR) was carried to analyze the R3500Q mutation, then, confirmed by PCR sequencing. As the results, 27 of 40 (counting for 67.50%) cases were identified being R3500Q mutation. In which, the prevalence of heterozygote and homozygous in this selected population was 25 of 27 (counting for 92.59%), and 2 of 27 (counting for 7.41%), respectively. By PCR sequencing, results were totally according to results of AS PCR analyzation. Giving clearly evidence, two peaks were observed corresponding to two alleles, one allele sequence is G and another is A, that concluded as heterozygote (G→A transi
- Publication Date: 08-May-2016
- DOI: 10.15224/978-1-63248-097-2-46
- Views: 0
- Downloads: 0