yrammuS 要概103Thidarat Bunsri104Wanlop Chutipong105Hasballah ZakariaRecycled Spent Dry Batteries for Low Cost Zinc and Manganese Coating Solution (Project 2018)Population and density estimates of the threatened Fishing cat (Prionailurus viverrinus) in human modified wetlands (Project 2018)Mobile Non-invasive Hemoglobin Measurement for Maternal Health Monitoring (Project 2018)73Rep. Grant. Res., Asahi Glass Foundation (2019)The contents of potassium, ammonium and chloride in gel catalyst of powder of alkaline batteries are 1.50, 0.40 and 2.00%, respectively, while the powder of carbon-zinc batteries are 0.01, 3.80 and 4.20%, respectively. The neutral leaching can remove approximately 85% of electrolyte from the powder of batteries. The paste is acidic leached at pH of 4 by sulfuric acid, and followed by alkaline precipitation. The pH at 7, the zinc can be precipitated. Finally, the slurry is adjusted the pH to 9-10 to precipitate the manganese. The powder of alkaline batteries has presented the oxides of manganese and zinc at contents of 36.6 and 37.4%, respectively. The powder of carbon-zinc batteries has contained the zinc and manganese contents of 30.0 and 12.0%, respec-tively. According to the XRD, the zinc and manganese can be recovered at 70% and 100 % from the powder of alkaline and carbon-zinc batteries, respectively.Fishing cat ranges over South and Southeast Asia but their populations appear to have declined significantly due to habitat loss and retaliatory killing. We provided the first population and density estimates of Fishing cat in mainland Southeast Asia. Estimated density appears to be relatively high compared with other estimates across the species range suggesting that this site of Thailand may be a population stronghold. Similar efforts targeting Fishing cat in recently confirmed locations should also be attempted in order to better assess their global population status for long term survival.Currently, accurate and reliable hemoglobin concentration measurement uses invasive methods that require a blood sample. Non-invasive methods offer a better alternative because it has low risk of infection and more comfort. A non-invasive hemoglobin measurement for anemia diagnosis based on optical spectroscopy was developed in this work. This method measured the hemoglobin concentration in real time and also portable in size. The system utilized LED and photodiode as optical sensor placed on the fingertip to read photoplethys-mography signal. The microcontroller used to control operation and calculate the hemoglobin concentration which then recorded in a mobile application for maternal health monitoring. ). For hemoglobin measurement application from fingertip 4 combination of wavelengths at 460nm (blue), 515nm (green), 620nm (red) and 940nm (infrared) can be used. The RMS error of the developed device was 1.53gr/dL and the maximum error was 3.7gr/dL. The precision of the device was 0.254gr/dL.
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