Manhole covers must provide adequate strength and durability over the intended service life. In addition to operating loads, lifespan of cast-iron manhole is strongly influenced by conditions installation cover placement after opening or closing. These can include a vertical displacement from plane carriageway during settlement terrain around afterwards. After closing cover, lid often only part...

Modern hardware systems are required to be robust, resilient and long-life, and thus they have to be adaptive to possibly changing requirements and operating conditions. This covers not only the data processing functions but also control, and even timing and power operation. For example, such systems will be increasingly powered by ambient sources (energy harvesting) and will experience a wide ...

EISUKE SAKURAI MAJOR APPLIANCE PRODUCTS ENGINEERING LABORATORY TOSHIBA CORPORATION 4-1, UKISHIMA-CHO KAWASAKI-KU, KAWASAKI 210 JAPAN A rolling piston type rotary compressor was modified for measurement of dynamic pressures in the compression and suction chambers, and instantaneous ~ngular position of the shaft. The compressor connected with a compressor load stand was tested at three different ...