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  2. Micro perforated plate - Wikipedia

    en.wikipedia.org/wiki/Micro_perforated_plate

    Traditional absorbers have many drawbacks, including pollution, the risk of fire, and problems with the useful lifetime of the absorbing material. The main reason why Micro Perforates have become so popular among acousticians is that they have a good absorption performance but without the disadvantages of a porous material.

  3. Modeling and simulation of batch distillation unit - Wikipedia

    en.wikipedia.org/wiki/Modeling_and_simulation_of...

    Aspen Plus, Aspen HYSYS, ChemCad and MATLAB, PRO are the commonly used process simulators for modeling, simulation and optimization of a distillation process in the chemical industries. [1] [2] Distillation is the technique of preferential separation of the more volatile components from the less volatile ones in a feed followed by condensation ...

  4. Aspen HYSYS - Wikipedia

    en.wikipedia.org/wiki/Aspen_HYSYS

    Aspen HYSYS (or simply HYSYS) is a chemical process simulator currently developed by AspenTech used to mathematically model chemical processes, ...

  5. List of chemical process simulators - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_process...

    This is a list of software used to simulate the material and energy balances of chemical process plants. Applications for this include design studies, engineering studies, design audits, debottlenecking studies, control system check-out, process simulation, dynamic simulation, operator training simulators, pipeline management systems, production management systems, digital twins.

  6. 10mm Auto - Wikipedia

    en.wikipedia.org/wiki/10mm_Auto

    The 10mm Auto (also known as the 10×25mm, official C.I.P. nomenclature: 10 mm Auto, [7] official SAAMI nomenclature: 10mm Automatic) [8] is a powerful and versatile semi-automatic pistol cartridge introduced in 1983. Its design was adopted and later produced by ammunition manufacturer FFV Norma AB of Åmotfors, Sweden. [12]

  7. Tuned mass damper - Wikipedia

    en.wikipedia.org/wiki/Tuned_mass_damper

    The red line shows the effect of adding a tuned mass of 10% of the baseline mass. It has a maximum response of 5.5, at a frequency of 7. As a side effect, it also has a second normal mode and will vibrate somewhat more than the baseline system at frequencies below about 6 and above about 10.

  8. Secret tunnel found on U.S.-Mexico border to be sealed off - AOL

    www.aol.com/secret-tunnel-found-u-mexico...

    The tunnel, concealed with wooden panels and hidden access through a sewer, measured approximately 300 meters on the Mexican side, with dimensions of 1.80 meters in height and 1.20 meters in width.

  9. Raschig ring - Wikipedia

    en.wikipedia.org/wiki/Raschig_ring

    Raschig rings one inch (25 mm) ceramic. A Raschig ring is a piece of tube, approximately equal in length and diameter, used in large numbers as a packed bed within columns for distillations and other chemical engineering processes. They are usually ceramic, metal, or glass and provide a large surface area within the volume of the column for ...