LTCC integrated miniature Rb discharge lamp module for stable optical pumping in miniature atomic clocks and magnetometers
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Tunnelling experiments have played an essential role in the development and verification of theories for superconductivity. They are usually interpreted within the so-called semiconductor model, in which the tunnelling current is given by the convolution o ...
Surface vanadia species formed on vanadia/titania catalysts consisting of 0.2-2.6 monolayers (ML) of VOx have been characterized by FT-Raman spectroscopy under controlled atm., temp.-programmed redn. in hydrogen (TPR), and soly. in dild. HNO3. Three types ...
A new type of air-water heat pump has been developed with the aim to cover an extended application range in high temperature residential heating (for retrofitting existing oil or gas boilers in hydronic heating systems). The base heat output is about 10 kW ...
The properties of Pb1-xCaxTiO3 (x=0-30) thin films for applications in point-detectors and arrays can be further improved ii porous, low-dielectric constant layers are being Used. Both 2-methoxyethanol and 1,3-propanediol based solution precursors were use ...
Dislocation dynamics in a Ni-3(Al, Ta) single-crystal alloy have been studied by means of mechanical spectroscopy at intermediate temperatures, that is in the temperature range of the flow stress anomaly. The mechanical loss of specimens predeformed at 300 ...
The efficient thermal control of buildings is a complex problem. Non controlled perturbations like user behaviour and meteorological conditions can change much with time and make this task difficult. This work proposes considering the building as a 'living ...
A new technique is presented for the prepn. of DSA type electrodes. In this technique, the precursor is rapidly decompd. on the substrate by treatment in an induction electromagnetic field. The effects of the rapid heating of H2IrCl6.6H2O precursor on Ti s ...
A complex heating and cogeneration plant including two 3.9 MWth ammonia heat pumps and two 3 MWel gas turbines with heat recovery boilers and three storage tanks of 66 GJ has been in operation since 1986. The heating surface is actually about 280’000 m2 an ...
Piezoelectric coefficients and electric field-induced strains are investigated in Ca-modified PbTiO3 (PCT) films deposited by sol-gel technique. The microstructural evolution and related electromechanical properties are studied as a function of Ca content ...
Several years ago it has been demonstrated experimentally and verified theoretically that Vuilleumier heat pump systems (a combination of a Stirling engine with a Stirling heat pump) can be supercharged periodically by means of an attached resonance tube, ...