Although recent advances in analytical methods have accelerated the study of these materials, the analysis and identiRcation of ancient organic residues has a long history. An early example, in the 1920s, was the use of wet chemical techniques by the chemist Alfred Lucas to study organic material from pottery and mummiRed human remains from the tomb of Tutankhamun. Over the last 20 years or so,...

Kaersutitic amphiboles foundwithin a subset of theMartianmeteorites have lowwater contents and variably heavy hydrogen isotope compositions. In order to assess if impact shock-induced devolatilization and hydrogen isotope fractionation were determining factors in thesewater and isotopic characteristics of theMartian kaersutites, we conducted impact shock experiments on samples ofGoreMountain am...

RATIONALE The recent development of cavity ring-down laser spectroscopy (CRDS) instruments capable of measuring (17) O-excess in water has created new opportunities for studying the hydrologic cycle. Here we apply this new method to studying the triple oxygen ((17) O/(16) O, (18) O/(16) O) and hydrogen ((2) H/(1) H) isotope ratios of gypsum hydration water (GHW), which can provide information a...

Abstract The controlled focusing and transport of ion beams is paramount importance in particle accelerators , high energy beamlines, detector systems, as it determines the sensitivity resolution instruments. Therefore, essential to model beam dynamics before commissioning new instruments order optimise properties such transmission spread. In this paper, a commercial Plasma Ion Source (PIS), co...

Monaural speech separation is a significant research field in signal processing. To achieve better performance, we propose three novel joint-constraint loss functions and multiple function for monaural based on dual-output deep neural network (DNN). The DNN model not only restricts the ideal ratio mask (IRM) errors of two outputs, but also constrains relationship estimated IRMs magnitude spectr...