Nouvelle technique d'hyperthermie interstitielle à 27 MHz
International audience
An Interlaboratory Test of pH Measurements in Rainwater
Published in Journal of Research of the National Bureau of Standards
An interlaboratory test of pH measurements in rainwater has been conducted. Various types of electrodes and junction materials were used in this test. The results of this exercise verify that there are significant differences in the pH values of low ionic strength solutions reported by various laboratories. Other work suggests that these difference...
Etude expérimentale des réactions de transfert de charges sur électrodes semiconductrices : oxydoréduction des anions co...
Ce travail concerne l'étude expérimentale des réactions de transfert de charges à l'interface électrode semiconductrice électrolyte aqueux. La voltamétrie cyclique dans le noir et sous éclairement a permis d'étudier les réactions d'oxydoréduction des anions complexes Fe(CN)3-/4-6 et Co(CN)3-/4-6 sur les électrodes de tellurure de zinc et de cadmium...
A discharge coordinate detection system
A device is described which makes it possible to record the coordinates of the spots of recurrent electrical discharges. These discharges are produced between electrodes which are separated by a small gap filled with an insulating liquid. Conditioning effects occurring in the liquid dielectric are presumed to modify the discharge pattern. An initia...
Balances à quartz résonnants de grande sensibilité fonctionnant en ultravide et à très basse température : Application à...
Nous décrivons un dispositif expérimental destiné à l'étude des interactions entre les gaz et les solides à très basse température. Le système de mesure proprement dit est constitué de six quartz résonnants. Cinq quartz très sensibles à la masse déposée sur leurs électrodes, permettent de mesurer la variation du nombre d'atomes condensés ; le sixiè...
Electrode Potentials in Fused Systems X. Measurement of Cation Concentration in Molten Salts Using Glass Membrane Electr...
Published in Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
A potentiometric method utilizing glass membrane reference electrodes in a concentration cell for the continuous measurement in situ of molten salt composition is presented. Relevant data for the AgCl-NaCl, AgBr-NaBr, and Ag2SO4-Na2SO4 systems are given. Using cells of the type M 1 | M 1 A ( a R ) , M 2 A ( a R ′ ) | glass | M 1 A ( a 2 ) , M 2 A (...
De glaselektrode en de bepaling van den zuurgraad van den grond
Comparison of guinea pig electroretinograms measured with bipolar corneal and unipolar intravitreal electrodes
Published in Documenta Ophthalmologica
This study considers the precision and accuracy of bipolar corneal electrodes compared with unipolar intravitreal methods in collecting electroretinographic (ERG) recordings from a small animal. Flash ERGs were obtained from 9 adult guinea pigs on three occasions. Corneal bipolar (Burian-Allen) electrodes were used to collect data on the first two ...
