Recently Bassan and Spizzichino (1999) have given some new concepts of multivariate aging for exchangeable random variables, such as a special type of bivariate IFR, by comparing distributions of residual lifetimes of dependent components of different ages. In the same vein, we further study some properties of concepts of IFR in the bivariate case. Then we introduce concepts of bivariate DMRL a...

PURPOSE Intraoral fluoride-releasing (IFR) devices provide elevated levels of fluoride in the mouth for extended periods of time. However, retention and protection of the devices have posed major challenges for clinical applications. The objectives of this study were to develop new methods for retaining and protecting IFR devices in the mouth and to assess their effects on salivary fluoride lev...

Several recent experiments involving relativistic electron beam (REB) transport in plasma channels show two density regimes for efficient transport; a low-density regime known as the ion-focused regime (IFR) and a high-pressure regime. The results obtained in this paper use three separate models to explain the dependency of REB transport efficiency on the plasma density in the IFR. Conditions f...

Fire disaster is the major factor to endanger the public and environmental safety. People lost their life during fire disaster mainly be attributed to the dense smoke and toxic gas under combustion, which hinder the escape of people and the rescue of firefighters under fire disaster. The smoke suppression effect of several transitional metals oxide on the epoxy resin treated with intumescent fl...

We compared the accuracy and utility of 3 infrared (IFR) thermographs fitted with axillary digital thermometers used to measure temperature in febrile and afebrile children admitted to an emergency triage room.A total of 184 febrile and 135 afebrile children presenting to a triage room were consecutively evaluated. Axillary temperature was recorded using a digital electronic thermometer. Simult...

Accelerating MR scan is of great significance for clinical, research and advanced applications, and one main effort to achieve this is the utilization of compressed sensing (CS) theory. Nevertheless, the existing CSMRI approaches still have limitations such as fine structure loss or high computational complexity. This paper proposes a novel iterative feature refinement (IFR) module for accurate...

This study seeks to explore the perceptions of users regarding Internet financial reporting (IFR) practices in Jordan. A questionnaire survey of 200 possible participants of four different user-groups was conducted to investigate their perceptions regarding the usefulness and usability of IFR as a source of information in Jordan. 114 received responses were analysed using the Kruskal-Wallis tes...

AIMS Reperfusion is mandatory to salvage ischaemic myocardium from infarction, but also induces additional reperfusion injury and contributes to infarct size (IS). Gentle reperfusion (GR) has been proposed to attenuate reperfusion injury, but this remains contentious. We now investigated whether (i) GR reduces IS and (ii) GR is associated with the activation of reperfusion injury salvage kinase...

Fractional flow reserve (FFR) is the ratio of distal coronary pressure to aortic pressure (Pd/Pa) across a stenosis measured during maximal hyperemia, most commonly achieved by the intracoronary or intravenous administration of adenosine. Multiple studies have demonstrated that FFR-guided revascularization improves clinical outcomes compared with angiographic guidance alone. This has resulted i...

Abstract Intumescent flame retardants (IFR) are widely used in the field of retardant polypropylene (PP), but their efficiency and smoke suppression properties need to be further improved. Herein, a Ni‐Al LDH (layered double hydroxide) is obtained successfully by coprecipitation microwave hydrothermal technique as synergist improve flame‐retardant smoke‐suppression triazine‐based IFR. The resul...