Abstract: A scattered-light spectroscopy system for collecting light scattered from a sample, e.g. Raman-scattered light, to produce a spectrum of the sample, includes a cylindrical cell for holding the sample that is transparent and coated on either its inside surface or outside surface with a reflective coating, e.g. aluminum. The reflective coating has an opening for aligning with an aperture in a spectrometer for receiving the sample-scattered light. Light from a source such as a laser illuminates the sample to produce a scattered light having a first part received directly at the opening and a second part reflected by the reflective coating one or more times prior to arrival at the opening, thereby adding to the total scattered light entering the aperture of the spectrometer to improve its collection efficiency.

Abstract: A sequential sampling tool that executes advanced sequential protocols on a portable platform. The system includes a computer and software code compiled with well-known statistical and graphical user interface packages. The sampling and testing tool supports SPRT, 2-SPRT, and sequential Bayes sampling protocols for a variety of statistical distributions, including Bernoulli, binomial, Poisson, negative binomial, and normal distributions. The user has easy access to properties of the statistical design, such as average sample size curve, the operating characteristic curve, and the Type-1 and Type-2 error rates. The system also displays two boundary lines for the design, and allows the user to plot and visualize each observation point one-at-a-time as each sample unit is taken and counted.

Abstract: A molded plastic article having improved electromagnetic interference (EMI) shielding properties. The article includes a plastic layer and an outer film layer over the plastic layer. The outer film layer has an inner surface adjacent to and bonded to the plastic layer and an outer surface opposed to the inner surface. The plastic layer and outer layer are electrically conductive. Preferably the outer layer has higher conductivity than the plastic layer.

Abstract: A molded plastic article having improved electromagnetic interference (EMI) shielding properties. The article includes a plastic layer and an outer film layer over the plastic layer. The outer film layer has an inner surface adjacent to and bonded to the plastic layer and an outer surface opposed to the inner surface. The plastic layer and outer layer are electrically conductive. Preferably the outer layer has higher conductivity than the plastic layer.