Degradation models are central to the lifetime prediction of electromagnetic relays. Coefficients degradation under accelerated test (ADTs) can be obtained experimentally, and it is customary map these coefficients back those describing actual by so-called Arrhenius model. However, for some components, such as springs in relays, model only appropriate over a certain ADT temperature range, which...

WDM based dynamic bandwidth allocation schemes are proposed as potential future-proof upgrade solutions for access PON systems. The schemes represent cost-efficient ways to exploit the virtually unlimited bandwidth afforded by passive optical architectures whilst remaining fully compatible with the IEEE Ethernet standard for the first mile (EFM 802.3ah).

This paper presents the correlation analysis between lightning flashes and rainfall rate of a thunderstorm when flash flood event happened in Melaka on 11 August 2020. Four types data have been collected from electric field mill (EFM), fast antenna (FA) system, constant altitude plan position indicator (CAPPI) radar world wide location network (WWLLN). Two storms detected by EFM occurred 04:00:...

Vancomycin-resistance in enterococci (VRE) is associated with isolates within ST18, ST17, ST78 Enterococcus faecium (Efm) and ST6 Enterococcus faecalis (Efs) human adapted lineages. Despite of its global spread, vancomycin resistance rates in enterococcal populations greatly vary temporally and geographically. Portugal is one of the European countries where Tn1546 (vanA) is consistently found i...

OBJECTIVE To compare electronic fetal heart rate (FHR) monitoring characteristics between appropriate for gestational age (AGA) fetuses and small for gestational age (SGA) fetuses and to determine whether SGA fetuses have specific abnormalities at second-trimester electronic fetal monitoring (EFM), using nonstress test. METHODS Among 953 children born from 1993-1996, we identified 500 singlet...

Graphene oxide (GO) has emerged as a multifunctional material that can be synthesized in bulk quantities and can be solution processed to form large-area atomic layered photoactive, flexible thin films for optoelectronic devices. This is largely due to the potential ability to tune electrical and optical properties of GO using functional groups. For the successful application of GO, it is key t...

Contemporary organizations recognize the importance of lean and green production to realize ecological economic benefits. Compared with existing optimization methods, multi-task multi-objective reinforcement learning (MT-MORL) offers an attractive means address dynamic, multi-target process-optimization problems associated Energy-Flexible Machining (EFM). Despite recent advances in learning, re...

The multiple-input multiple-output (MIMO) characterization of a cable of twisted pairs merits attention and measurement for studies in ethernet in first mile (EFM) efforts. Quads or other groups of twisted pair within a cable may be combined for better transmission/duplexing: The interaction between lines within a subgroup or the entire cable can be exploited to improve performance and reduce t...

This paper introduces two new coding schemes, probabilistic reasoning models (PRM) and enhanced FLD (Fisher linear discriminant) models (EFM), for indexing and retrieval of large image databases with applications to face recognition. The unifying theme of the new schemes is that of lowering the space dimension ("data compression") subject to increased fitness for the discrimination index.