Removal of High Concentration of Methyl tert-Butyl ether in Synthetic Wastewater by Employing High Frequency Ultrasound Waves

INTRODUCTION : B scan makes use of high frequency ultrasound waves which are reected back and are converted to electric signals. The data which is not available from the clinical examination can be visualised by using the ultrasound B-scan. It is of immense visual prognostic value to modify the surgical plan in eyes who have hazy media. AIM : Evaluation of posterior segment using ultrasound B scan(US-B) in patients with dense lens changes Co relation of the type of dense lens changes with different posterior segment pathologies. METHODOLOGY : Study sample : 100 Study period : 1st July 2019 to 31st June 2020 Study duration :12 months Study area :All the patients presenting to Ophthalmology OPD at Meenakshi medical college and research institute , Kanchipuram ,Tamil Nadu. RESULTS : Majority of the B-scans turned out to be normal in dense lens changes. Posterior vitreous detachment, Asteroid hyalosis and Retinal detachment are the common abnormalities seen in the decreasing order of their occurrence.

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High frequency ultrasound waves for degradation of amoxicillin in the presence of hydrogen peroxides for industrial pharmaceutical wastewater treatment

Global NEST Journal ◽

10.30955/gnj.001413 ◽

2014 ◽

Vol 16 (5) ◽

pp. 805-813 ◽

Cited By ~ 1

Keyword(s):

Hydrogen Peroxide ◽

Wastewater Treatment ◽

Pharmaceutical Industry ◽

High Frequency ◽

Degradation Rate ◽

Wastewater Effluent ◽

High Frequency Ultrasound ◽

Pharmaceutical Wastewater ◽

Ultrasound Waves ◽

Frequency Ultrasound

<div> Amoxicillin degradation with and without high frequency ultrasound waves of 2.4 MHz has been investigated. The concentration of amoxicillin was selected to be similar to that of outlet wastewater effluent concentration in pharmaceutical industry namely 50 and 100 ppm. The application of ultrasound waves together with the addition of hydrogen peroxide H2O2 increased the rate of degradation of antibiotic amoxicillin. The doses of H2O2 used were 5, 2, 1, and 0.1 ml in a solution of 50 ml of amoxicillin. The study showed that ultrasound waves and H2O2 had improved amoxicillin degradation. The ultrasound has improved the degradation rate more than two times in comparison to amoxicillin solution without ultrasound waves. This degradation rate has been achieved within 90 minutes.  </div>

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Ovarian imaging in the mouse using ultrasound biomicroscopy (UBM): a validation study

Reproduction Fertility and Development ◽

10.1071/rd08295 ◽

2009 ◽

Vol 21 (4) ◽

pp. 579 ◽

Cited By ~ 13

Author(s):

Carmen N. Mircea ◽

Marla E. Lujan ◽

Rajesh S. Jaiswal ◽

Jaswant Singh ◽

Gregg P. Adams ◽

...

Keyword(s):

Validation Study ◽

High Frequency ◽

Ultrasound Biomicroscopy ◽

Human Reproduction ◽

Corpora Lutea ◽

High Frequency Ultrasound ◽

Perfect Agreement ◽

Ultrasound Waves ◽

Imaging Tool ◽

Frequency Ultrasound

The mouse is a well accepted model for studies of human reproduction despite little being known about follicle dynamics in this species. Longitudinal studies of mouse folliculogenesis have been hampered by the lack of an appropriate imaging tool. Ultrasound biomicroscopy (UBM) may overcome this obstacle as it confers near-microscopic resolution through the use of high-frequency ultrasound waves. The objective of the present study was to determine whether UBM could be used to count and measure ovarian follicles and corpora lutea (CL) reliably in mice. Ovaries of 25 adult CD-1 mice were imaged using a 55-MHz transducer and then excised and processed for histology. Follicles and CL were counted and measured from digitally stored UBM cine-loops and photographed histological sections. Differences between techniques were assessed by Bland-Altman agreement analyses. Follicle counts yielded by the two techniques varied by only ± 1 follicle when follicles ranged between 300 and 499 μm. Perfect agreement among counts was evident when follicles were >500 μm. The total number of CL was accurately estimated using UBM; however, the number of 350–699 μm CL was underestimated and the number of CL ≥700 μm was overestimated. In conclusion, UBM can be used reliably to count and measure follicles in mice.

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