This study aims to assess the potential and limits of an advanced inversion method to estimate pollutant precursor sources mainly from observations. Ozone, sulphur dioxide, and partly nitrogen oxides observations are taken to infer source strength estimates. As methodology, the four–dimensional variational data assimilation technique 5 has been generalised and employed to include emission rate ...

Fault geometry, depth, and slip distribution of the Sanriku-oki earthquake of December 28, 1994 (Ms 7.5) are estimated from seismic waveforms, geodetic measurements, and tsunami waveforms, and compared with those of the 1968 Tokachi-oki earthquake (Mw 8.2), the most recent large earthquake in the epicentral region. Seismic wave inversions indicate a shallowly dipping thrust type mechanism and t...

An experimental study of the phase inversion behavior of liquid-liquid dispersion has been conducted in a spray extraction column for systems of toluene / water, n-hexane/water, CCl4/water, toluene /water + glycerol (25 % wt), toluene + CCl4 (25 % wt) / water and toluene / acetic acid (5 % wt)/water. The effects of physical properties, mass transfer and column geometry...

INTRODUCTION Chronic functional instability--characterized by repeated ankle inversion sprains and a subjective sensation of instability--is one of the most common residual disabilities after an inversion sprain. However, whether surgical reconstruction improves sensorimotor control has not been reported to date. The purpose of this study was to assess functional improvement of chronic ankle in...

Firstly, we prove a functional relation for the Tornheim double zeta function. Using this functional relation, we obtain simple proofs of some known formulas for special values of Tornheim and Euler-Zagier double zeta functions. Secondly, we obtain functional relations for Witten zeta functions by using a double L-values relation. By these functional relations, we obtain new proofs of known res...

We present a neural method that computes the inverse kinematics of any kind of robot manipulators, both redundant and non-redundant. Inverse kinematics solutions are obtained through the inversion of a neural network that has been previously trained to approximate the manipulator forward kinematics. The inversion provides difference vectors in the joint space from difference vectors in the work...

Circular DNAs excised by immunoglobulin K chain gene rearrangements were cloned and characterized. 16 of 17 clones examined were double recombination products containing aVKJK rearrangement (coding joint) as well as the reciprocal element (signal joint) of another Vfc-JK rearrangement . These products suggested multiple recombination, primary inversion, and secondary excision . In primary event...

Circular DNAs excised by immunoglobulin K chain gene rearrangements were cloned and characterized. 16 of 17 clones examined were double recombination products containing aVKJK rearrangement (coding joint) as well as the reciprocal element (signal joint) of another Vfc-JK rearrangement . These products suggested multiple recombination, primary inversion, and secondary excision . In primary event...

Instability of the subtalar joint can follow inversion stress injuries to the lateral ankle and hindfoot. Ligaments involved in the injury include the calcaneofibular, lateral talocalcaneal, cervical, interosseous talocalcaneal, or a combination. Although the problem most often occurs in conjunction with lateral ankle instability, it may be an isolated problem and it is not corrected equally we...