Due to an error in the preparation of Figure 7F,H, there was a large area of overlap (from different fields of confocal microscopy) in the originally published article. The control MCR-1 was erroneously placed under the microscope at the positions corresponding to the 2nd control mcr-4 and the gene of interest nmcr-1.
The aim of this study was to develop a model that predicts the gas solubility and the sorption and desorption kinetics in polymer granulates over large temperature and pressure intervals. Besides the part predicting the solubility and diffusivity, the model involves the simultaneous solution of the diffusion equation and the heat equation in three dimensions using a finite element method (FEM). When the temperature-and pressure-dependent solubility of a specific polymer/gas combination is not known, an improved version of the non-equilibrium lattice fluid model (NELF) is used to predict the solubility. The improvement of the NELF model includes the use of Hansen's solubility parameters, and it uses pressure− volume−temperature (PVT) data from two new empirical models, which accurately estimate polymer densities over a wide range of temperatures and pressures. The new solubility model predicted the solubility−pressure data of N 2 in poly(ethyl methacrylate) and N 2 and CH 4 in polycarbonate (PC) at pressures below 4.5 MPa, without using any adjustable interaction parameters. The model was used to predict the solubility of N 2 in poly(ether-ether-ketone) (PEEK) and PC at a very high pressure (67 MPa). Experimental N 2 solubility data were obtained with a specially built reactor yielding high pressure and temperature. For PEEK, it was possible to predict the very high pressure solubility using a gas−polymer interaction parameter obtained from data taken at low pressures. In addition, a new free-volume-based diffusivity model requiring no adjustable interaction parameters was developed, and it successfully predicted the desorption kinetics of N 2 from PEEK and PC.
Qualitative and quantitative analysis of the raw granite rocks acquired from deposits in the Hunza district, Gilgit area of Pakistan were studied using laser-induced breakdown spectroscopy (LIBS) and laser ablation time-of-flight mass spectrometry (LA-TOF-MS). The optical emission spectra of the granite rocks used in artificial jewelry and for flooring tiles show the emission lines of (Si, Ca, K, Fe, Mg, Al, Na, and Li) and (Si, Ca, K, Fe, Mg, Al, Ti, Na, Ba, and Li), respectively. The mass spectra of these granite rocks were also studied with the LA-TOF-MS, revealing analogous elemental compositions. The results obtained using LIBS and LA-TOF-MS for the raw granite samples display their ability as powerful and complementary tools for the compositional analysis of the geological samples.
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