Introduction: Mercury is unique among the terrestrial planets for its low mass (3.302x10 kg) and high average density (5.427 g/cc) that together imply an iron-rich composition. Meaningful interplanetary comparisons of bulk composition, through bulk density, require the removal of self-compression effects to determine decompressed density (zero pressure and 300K, STP). The methodologies used in ...

The emission spectrum of mercury has a notable line at about 365 nm under both low and medium-high pressure conditions. A simple filter based on a solution of dysprosium ions, Dy(3+), is shown to be very useful for applications of Hg-light sources where this line is unwanted. The presented filter is cheap, robust, and stable towards degradation or bleaching - even under intense irradiation. The...

This paper describes an experimental study aimed at evaluating the influence of soil microstructure on air permeability in compacted clay. Air measurements, estimated using gas pressure decay method, were carried out for a wide range compaction states. The evolution during wetting and drying paths was also evaluated. results show that, increase as-compacted degree saturation, may either or decr...

The microstructure and interfacial transition zone characteristics of Portland cement mortars prepared with a polynaphthalene sulfate (PNS) superplasticizer at relatively high dosages (0.8%, 1.5% by mass of cement) and varying sand-to-cement ratios (0.5, 1.0, 1.5) were investigated, using AC impedance spectroscopy, mercury intrusion porosimetry, helium pycnometry and two electrical conductance ...

A high-resolution, three-dimensional (3D) image of the interior of the sedimentary rock was obtained by means of nano-focus X-ray computer tomography (X-ray CT). Using computational methods to analyze the 3D microstructure of the rock, we presented the tortuosity and geometrical constrictivity. We also presented results on the tritiated water (HTO) diffusion tests and a mercury intrusion porosi...

The rapid and precise element measurement of trace species, such as mercury, iodine, strontium, cesium, etc. is imperative for various applications, especially for industrial needs. The elements mercury and iodine were measured by two detection methods for comparison of the corresponding detection features. A laser beam was focused to induce plasma. Emission and ion signals were detected using ...

We have developed numerical methods and performed numerical simulations of the proposed Muon Collider target. The target will be designed as a pulsed jet of mercury interacting with strong proton beams in a 20 Tesla magnetic field. A numerical approach based on the method of front tracking for numerical simulation of magnetohydrodynamic flows in discontinuous media was implemented in FronTier, ...

Amalgam has, ever since its introduction 150 years ago, been the subject of recurrent controversies because of its mercury content. Amalgam is an unstable alloy and continuously gives off mercury (Hg) in the form of gas, ions and abraded particles (Stock, 1939 a, Radics et al., 1970, Mocke, 1971, Till and Wagner, 1973, Svare et al., 1981). Amalgam contains an especially cor-rodible gamma-2-phas...

BACKGROUND Populations which diet is rich in seafood are highly exposed to contaminants such as mercury, which could affect cardiovascular risk factors OBJECTIVE To assess the associations between mercury and blood pressure (BP), resting heart rate (HR) and HR variability (HRV) among French Polynesians METHODS Data were collected among 180 adults (≥ 18 years) and 101 teenagers (12-17 years)...