Showing papers by "Eindhoven University of Technology published in 1970"
TL;DR: In this article, the authors investigated the mechanism determining the mass transfer at a gas evolving electrode, and determined the thickness of the Nernst diffusion layer as a function of the current density for both hydrogen and oxygen evolving on horizontal and vertical electrodes in acid as well as in alkaline solutions.
184 citations
TL;DR: In this paper, it was shown that under precisely controlled conditions retention indices of apolar substances on apolar stationary phases can be reproduced to 0.03 units, which is of particular importance because of the lower precision of index data on polar stationary phases.
41 citations
TL;DR: When MeOH was substituted for H2O as the solvent in isotachophoresis (formerly displacement electrophoresis), mixts of NH4+, K+, Na+, and Li+ were resolved.
35 citations
TL;DR: In this paper, the authors used counterflow to separate small differences in mobility of an ion in a mixture in too great an amount, which normally causes "mixed zones" that can be resolved by use of counterflow.
32 citations
TL;DR: In this paper, an electric diagram is given for an aluminum thermostat in which the capillary is mounted, which makes balancing of thermocouples 1,2 unnecessary.
31 citations
TL;DR: In this paper, the authors investigated the mechanism of chlorine evolution on a graphite anode in acid chloride solution and showed that the activation energy of the Heyrovsky reaction and also of the chlorine evolution at the reversible potential at 1 atm chlorine is 8·4 ± 0·3 Kcal/mole molecular chlorine.
27 citations
TL;DR: Electrophoretic methods using gel or paper for separating amino acids or their derivatives are being investigated and various approaches are described.
18 citations
TL;DR: In this article, it was shown that the atomic chlorine is adsorbed on the surface of the crystallites inside the graphite and its diffusion coefficient is D = 2.4 X 10 t-3 exp (-4500/ RT ) cm 2 /s.
18 citations
TL;DR: In this paper, the mechanism of the electrochemical bromine evolution at a graphite electrode is elucidated, and it is shown that bromines are formed according to the Volmer-Heyrovsky mechanism.
18 citations
TL;DR: In this article, a single-phase liquid energy exchange experiments have been carried out in (1) a transparent test section containing two adjacent simplified reactor subchannels at low pressure and (2) a high pressure rig with a test section consisting of four heated cluster elements close to average PWR operating conditions.
16 citations
TL;DR: In this article, it is established that the molecular chlorine is formed according to the Volmer-Heyrovsky mechanism, the rate of r.g. is determined by an equilibrium between the diffusion of atomic chlorine out of the graphite and the formation of molecular chlorine.
TL;DR: In this article, the beam transport system for the Eindhoven AVF-cyclotron is described, and the analysis is restricted mainly to a 90° deflecting subsystem composed of two 45° magnets and three magnetic quadrupole lenses.
TL;DR: In this paper, the elution of an inert gas peak from capillary columns is directly measured with a flame-ionisation detector operating at reduced hydrogen and air flow rates, and no significant diferences in "dead times" obtained from different inert gases are found.
Abstract: The elution of an inert gas peak from capillary columns is directly measured with a flame-ionisation detector operating at reduced hydrogen and air flow rates. Under the conditions tested the inert gases give negative signals. No significant diferences in “dead times” obtained from different inert gases are found. Experimental values deviate from the measured methane elution time and even more from “dead times” calculated from the logplot of n-alkanes.
TL;DR: In this article, the usual equation to calculate the antenna noise temperature meets various objections, and a new equation is introduced, which is based on a new approach to calculate antenna noise.
Abstract: The usual equation to calculate the antenna noise temperature meets various objections. A new equation is introduced.
TL;DR: In this article, heat transfer in a centrifugal film evaporator with a conical heating surface is analyzed. And the relation between film thickness of the evaporating liquid film and the radial distance from the cone apex is derived.
01 Jan 1970
TL;DR: In this article, the phase angle between the accelerating dee-voltage and the particle bunches was measured using an inductive pick-up coil inside the cyclotron.
01 Jan 1970
TL;DR: In this paper, the use of pivot bearings combined with a moving table in balance constructions was discussed and the results of measurements concerning the sensitivity (0.12 µg) and reproducibility of such a moving-table balance were discussed.
Abstract: At the 5th and 6th Conferences of this series the possibilities of using pivot bearings combined with a moving table in balance constructions were indicated. The present paper deals with the use of such a balance incorporating mechanical feedback. The results of measurements concerning the sensitivity (0.12 µg) and reproducibility of such a moving-table balance are discussed.
01 Jan 1970
TL;DR: In this article, the diffusion coefficient of vapors in gases is determined by recording the loss of weight of a small bucket containing a liquid evaporating through a narrow vertical tube, where the suspension wire is placed in the axis of the tube.
Abstract: Determination of the diffusion coefficient of vapors in gases by Stefan’s method leads to results of rather low reliability. Improvement can be attained by using a recording microbalance. The determination is performed by recording the loss of weight of a small bucket containing a liquid evaporating through a narrow vertical tube. The suspension wire is placed in the axis of the tube. In the case of very narrow tubes (O < 10−3 m), tube and container are weighed as a whole.