Ultrasound imaging provides a non-invasive method of investigating the breast during lactation and this paper will review ultrasound techniques used during lactation along with normal and abnormal appearances of the lactating breast. Works With.The lactating breast produces milk of a complex composition that is tailored for the optimal growth and development of the term infant, yet the knowledge regarding pathology and treatment of the lactating breast is limited compared to that of the non-lactating breast. For single-zone modeling, use Xfh ® Ultra, our general-purpose fired heater program. Additional combustion and convection section modules allow evaluation of a complete process fired heater. X fh uses a Hottel zoning method to calculate localized radiant and process side performance. Simulate the performance of cylindrical and box heaters. X vib considers fluidelastic instability and vortex shedding mechanisms for both straight tubes and U-tubes. XvibĬalculate flow-induced vibration for a tube in a shell-and-tube exchanger using a rigorous finite element based algorithm. X spe models cocurrent and countercurrent spiral flow (Type I exchangers). Rate and simulate single-phase spiral plate exchangers using an incremental model with HTRI-validated heat transfer and pressure drop correlations. X phe contains a port maldistribution model that calculates the flow through each plate channel. Rate, simulate, and design plate-and-frame exchangers using user-defined plate types or plates selected from an internal manufacturers’ databank.
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