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  • Shedding New Light on Photocatalyst Performance Part 1: Surface Area and Pore Size Analysis
    of this two-part Note. Part 1 focuses on how selected physical properties of photocatalysts (surface area and pore structure) affect their performance. Part 2 extends the discussion to include chemical properties (chemisorption capacity and reactivity) of photocatalysts.
  • SMD Resistor Thermal Analysis
    in temperature due to conduction through each thermal impedance between the film and the ultimate "perfect heatsink." This relationship is shown in the block diagram titled "Figure 1." A typical example of this relationship applied to a surface mount resistor is shown in "Figure 2." A detailed analysis
  • Designing Atmospheric-Pressure Plasma Sources for Surface Engineering of Nanomaterials
    target cells for analysis. Additionally,. the complex sample handling required by these techniques. may compromise gene expression, contaminate samples,. reduce cell populations, as well as add to experimental time. and cost [5]. Since DEP response, the resultant motion of a particle. due to its
  • Combining Size and Shape Analysis
    (proportional to. the ratio of the particle's area to the particle's. perimeter squared), particle orientation, and. fiber curl, as shown in figure 1. These parameters are particularly useful for. quantifying a particle's shape anisotropy and. describing the particle's surface area. regularity.
  • Types Of Gas Chromatograph
    Gas chromatograph is a commonly used chromatographic product. In addition to quantitative and qualitative analysis, it can also determine the physical and chemical constants such as the partition coefficient, activity coefficient, molecular weight, and specific surface area of the sample
  • Packaging Simulation Answers the Need for Speed
    By Adrian Possumato, Global Manager - Pharmaceutical Market, Multisorb Technologies Figure 1 shows the adsorption isotherms for a drug product (light blue line), a molecular sieve desiccant (red line) and a silica gel desiccant (dark blue line). The analysis would also have to calculate the surface
  • Characterizing Coarse Particles with Dual EDS Detectors (.pdf)
    Performing EDS analysis on a specimen with coarse particles on the surface can be difficult because of shadowing effects as shown in the schematic in figure 1. However, this effect can be mitigated in two different ways. One is to collect a set of maps from an area, rotate the sample 180
  • A Spectroscopy Guide for PAT
    , crushability, surface area, porosity, morphology and particle size distribution of excipients and APIs. Standard physical testing, while accurate, is slow and labor-intensive. Means are needed to make rapid, multivariate measurements on solid materials. This suggests spectroscopy. This article

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