Displaying 25191 - 25200 of 37748

Photovoltaic diodes based on iodine- and bromine-doped pentacene single crystals as well as thin films (TFs) have been prepared.

At moderate temperatures in flowing gas, pentacene undergoes a disproportionation reaction to produce 6,13-dihydropentacene (DHP) and a series of polycondensed aromatic hydrocarbons, including the

It is difficult to deposit a very thin polymer layer onto a fiber-shaped substrate from solution because the high interfacial energy can lead to dewetting.

High K titanium oxide-polystyrene nanocomposite (TiO2-PS) has been blended with polystyrene (PS) to generate gate dielectric films with permittivities ranging from 2.5 to 8 in order to investigate

A detailed description of a current rural crossbar system.

Making effective use of the well-established Pentaconta switching equipment and techniques, the A1 system has been developed to fit in the public telephone network of North America.

The system uses cross-bar type multiswitches as selectors and special electromagnetic relays of high contact capacity for building up the associated units; markers, receivers, translators and so on

Describes the functioning and application of line concentrators which use the Pentaconta crossbar switch, a 14 detection bar multi-selector serving 52 outlets.

The remote line units which are described in general terms are large capacity concentrators intended for use in low telephone density areas; they provide the same facilities as the large automatic

Initially outlines the switching characteristics of Pentaconta system.

Explore more

Video

AI-enhance wireless reliability: joint source and channel coding for robust 6G air interface

Podcast

A 2025 recap of "a bit of tech"