Clustering provides an effective way for prolong5 ing the lifetime of a wireless sensor network. Current clus6 tering algorithms usually utilize two techniques, selecting 7 cluster heads with more residual energy and rotating clus8 ter heads periodically, to distribute the energy consumption 9 among nodes in each cluster and extend the network lifetime. 10 However, they rarely consider the hot ...

Thermal management is a critical issue in integrated circuit (IC) design. With each new IC technology generation, feature sizes decrease, operating speeds increase, and package densities increase, contributing to larger power consumption and elevated die temperatures. Higher temperatures are detrimental to circuit behavior and reliability. Furthermore, hot spots due to spatially non-uniform hea...

In this paper we report on a thermoelectric generator (TEG) using thermal isolation provided by a thick porous Si layer locally formed on the Si wafer and thermocouples composed of p-doped polycrystalline Si/Al. The "hot" contacts of the thermocouples lie on the porous Si layer, while the "cold" contacts lie on bulk crystalline Si. A housing was also designed and fabricated in order to transfer...

Abstract Introduction Almost 70,000 cholecystectomies are performed each year in the United Kingdom (UK). The Association of Upper Gastrointestinal Surgery Great Britain and Ireland (AUGIS) 2016 National Institute for Health Care Excellence (NICE) 2021 Guidelines on “Gallstone disease” recommend performing a Laparoscopic Cholecystectomy (LC) within 7 days admission hot gallbladder. We aimed to ...

Zusammenfassung Der Beitrag beschäftigt sich mit der Parametrierung der nichtlinearen Zustandsregelung durch Interconnection and Damping Assignment Passivity Based Control (IDA-PBC). Die Struktur der geregelten Strecke als Port-Hamilton (PH) System ist physikalisch motiviert und beruht auf der Speicherung, dem Austausch und der Dissipation von Energie. Die Wirkung der Entwurfsparameter in den v...

The aim of this work is to develop a die material selection criterion for aluminum hot stamping applications. has been based on the back-to-back comparison set reciprocating friction and wear tests. Three representatives belonging different families have selected study: cold steel, cast iron. These tool materials combined with an exemplary member from two heat treatable families: 2XXX 6XXX. Eac...