(ii) stability of solution over a reas-onable period of time shall be designated as operational standards in aqueous solution ofspecified concentration. Their number is in principle unlimited but values are availablenow for 15 solutions. The values of pH(OS) are assigned by comparison with the ...
Photochemical reactions are a powerful tool in (bio)materials design due to the spatial and temporal control light can provide. To extend their applications in biological setting, the use of low-energy, long wavelength light with high penetration propertiesis required. Further regulation of the photo...
(C) Operating principle for glucose sensing. When the device is on (top), VpH = −1 V, the Pd contact absorbs H+ from the solution and increases its pH. At high pH, the Au/Co3O4 contact is in its more reactive CoO2 oxidized state. With Vg = 0.5 V, the CoO2...
coli cells with ESR and its mutants expressed were performed in a 1 × 1 cm cuvette with a stirrer using pH electrode (Orion 8103B Ross semi-micro) and a pH meter (pH-673, Russia) connected to digital multi-meter Metex 365D (Republic of Korea). A 300 W halogen lamp in combination ...
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A mechanical integraph has been developed which plots continuously the integral of the product of two functions. It uses the principle of the electrical integrating watthour-meter combined with a moving table. Errors of the machine have been reduced to an average of 1 per cent. for common ...
- 《Journal of the Mechanical Behavior of Biomedical Materials》 被引量: 15发表: 2013年 A skin friction meter, using the viscosity balance principle, suitable for use with flat or curved metal surfaces (based on thickness measurement) An oil film is placed on a surface over which gas is ...
PH meter, electric device used to measure hydrogen-ion activity (acidity or alkalinity) in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode. The pH-responsive electrod
The whitebacked planthopper (WBPH), has become a devastating pest for rice crops, causes serious yield losses each year, and urgently needs biological control. Here, we developed a WBPH-resistant rice cultivar by overexpressing the OsF3H gene. A genetic
Particle size (z-average diameter) and polydispersity index (PdI) were measured at 25 °C by Malvern Zetasizer Nano ZS (Malvern Instruments, UK) following dynamic light scattering principle40. The instrument carries a 4 mW He–Ne laser that operates at 633 nm wavelength. The measurement was co...