NDJ Sustainable
Engineering,  LLC


We develop engineering software for customers to satisfy their specifial needs that OEM software cannot easily address.

Engineering Software Development

Pre- and postprocessing for 2D/3D data analysis; Image processing software; Specialized VBA for excel sheets; Smart phone apps; Webservices; Online Database, etc.

    Programming Skills

  • NDJSE, LLC is specialized in finite element programming in C++ and FORTRAN.
  • We have extensive experience in creating graphic user interface (GUI) for 2D/3D scentific data preprocessing and postprocessing.
  • Our skillset also includes programming languages such as PHP, VBA, LUA, Java, C# etc.
  • We frequently use OPENGL, FOX-TOOLKIT, CORONA SDK to make high quality products very efficiently.
  • If you ever need database for your engineering software, we are also good at SQL, MySQL, and Access etc.
  • We have extensive experience in multiple platforms, including Windows, Unix and Smart Phones.

    Digital Image Processing Software

    To illustrate our comprehensive skills, one of our projects is for digital image processing. A software package, ImageParser, is developed to generate an FEM mesh from 3-D tomographic medical images. This software uses a semi-automatic method to detect ROIs from the context of image including neighboring tissues and organs, completes segmentation of different tissues, and meshes the organ into elements.

  • The finite element method (FEM) is a powerful mathematical tool to simulate and visualize the mechanical deformation of tissues and organs during medical examinations or interventions. It is yet a challenge to build up an FEM mesh directly from a volumetric image partially because the regions (or structures) of interest (ROIs) may be irregular and fuzzy.
  • The ImageParser is shown to build up an FEM model for simulating the mechanical responses of the breast based on 3-D CT images. The breast is compressed by two plate paddles under an overall displacement as large as 20% of the initial distance between the paddles. The strain and tangential Young's modulus distributions are specified for the biomechanical analysis of breast tissues.
  • The ImageParser can successfully extract the geometry of ROIs from a complex medical image and generate the FEM mesh with customer-defined segmentation information
  • The ImageParser can successfully detect tumor tissues using the Strain and Tangent Young's Modulus Distribution: the distribution of von Mises strain shown in Figure(a) and Tangent Young's modulus shown in Figure (b) for the layers at z = 69, 78, 87 mm are illustrated. Because the tumor is much harder than other tissues, the Tangent Young's modulus is obviously higher and the strain is lower than those at the neighoring region.
contact ndjse LLC Services

Application Field

  • Solar Energy
  • Transportation System
  • Nuclear Energy
  • Oil/Gas Industry
  • Mechanical System
  • Civil Engineering