Inaccuracies in Rotameters, caused by static charges, seem to be relatively common. Inaccuracies can be of a very serious order. Charges outside the tubes can be removed easily by antistatic spray. Charges inside the tube are very difficult to remove except by dismantling the apparatus or by the use of a radioactive pistol. Charges have been measured and are much larger than had been supposed a...

What we know: In preschool children, small-volume spacers perform better than large-volume spacers. Detergent is the best antistatic agent for spacers, increasing lung delivery two- to threefold, but it must not be rinsed off. A mouthpiece should be used in children aged 2-3 years or older, as lung delivery is two- to threefold higher for oral inhalation than nasal inhalation (ie, by mask). Inh...

With the aggravation of fire and smoke pollution, it is urgent to develop green, lower-cost high-performance Foamed Wood–Plastic Composite (FWPC) meet standards antistatic flame retardant in practical application. Therefore, FWPCs were prepared by compression molding this study. High-density polyethylene (PE-HD) Salix wood flour used as main raw materials, azodicarbonamide (AC) was foaming agen...

A diverse set of wearable technologies has become readily available to the community over the past few years. To current standards, wearable devices incorporate high-performance electronics that have been miniaturized so that they’re relatively unobtrusive when worn on the human body. Typical forms include wrist watches; headworn displays, and devices integrated into jewelry. In some cases, tho...

We consider algebraic varieties de)ned by the vanishing of all minors of a )xed size of a rectangular matrix with indeterminate entries such that the indeterminates in these minors are restricted to lie in a ladder shaped region of the rectangular array. Explicit formulae for the Hilbert function of such varieties are obtained in (i) the rectangular case by Abhyankar (Rend. Sem. Mat. Univers. P...

agent technology is an emerging and promising research area in software technology, which increasingly contributes to the development of value-added information systems for large healthcare organizations due to its capability to automatically modify themselves in response to changes in their operating environment. multi agent system (mas) approach is the construction of a complex system as a se...

In this paper we prove two extrapolation theorems for related weights. The theorems proved by C. Segovia and J.L. Torrea in [C. Segovia and J.L. Torrea, Weighted inequalities for commutators of fractional and singular integrals. Publ. Mat. 35 (1991) 209-235] are adapted for one-sided weights. We apply these extrapolation theorems to improve weighted inequalities for commutators (with symbol b d...

Intrinsically conducting polymers (ICPs) have been considered for use in various applica‐ tions. One of the most important applications of these materials which are attracting consid‐ erable attention in the most recent times is in corrosion protection of oxidizable metals [1]. The effective use of conducting polymers for corrosion protection of metals can be carried out by different methods; l...