Free engineering downloads

For a project of any kind it is most important to be able to describe the problem quickly and clearly. An innovative requirements development and analysis tool VR (Visual Requirements) is a practical, low-cost / low-risk solution for defining software, user interfaces, system components, processes, dashboards, information sources, etc. It can also be used as a general information management tool, for example, to organize ideas or references.

VR leverages lucid and efficient information structures that enable very productive work. For example, designing a website, we frequently find that the same field has to appear on several screens - where to keep the requirements related to this field and how to find them? Or, some scenarios or algorithms may have many identical elements - how to make the updates to these elements only once? Some requirements belong to use cases but also have to appear in supplementary specifications - what is the best way to deal with this?

VR provides simple effective functionality to:
* Build requirements as a set of linked diagrams that are easy to read and navigate
* Present a product in multiple views: concept view, use case view, user interface view, concept view, workflow view, and others
* Define use cases visually
* Create coherent intertwined structures with common elements, such as use cases, screen mockups, algorithms
* Instantly inquire about location, content and properties of concepts, data items, requirements; find elements by name, concept, substring; etc.
* Analyze your model, e.g. find orphan elements, compare diagrams, compare requirements, trace requirements, etc.
* Create reports using easy integration with Word and other tools
* Estimate size and effort using Use Case Points
* Etc.
VR is an evolutionary tool that is user friendly right from the start. Engage VR to dramatically increase the productivity of your work, the quality of your work products and the maturity of your process.
Tags: requirements, management, tool, development, definition, requirments, concept, based, visual, engineering, estimation, use, case, requirements management tool, requirements development tool, requirements definition tool, concept-based requirements tool, visual requirements tool, requirements engineering tool, use case, …

Resistor Values is an electrical engineering program that will calculate the value of a 4 band resistor. Resistor Values will determine the value of a resistor based on the color bands or the reverse, it can display the color bands of a resistance value entered by the user. The trial version of Resistor Values is limited to resistance values of 1000 Ohms (1 KOhm) or less. The registered version shows resistor values up to 99000000 Ohms or 99 MOhms.
Tags: resistor, values, color, code, electrical, engineering, circuit, resistors, calculator, colors, resistor values, resistor color code, electrical engineering, color code, resistor calculator, resistor colors, resistor color code calculator, …

PHex is an easy to use tool which domonstrates the thermal calculations of Gasketed Plate Heat Exchangers, The plate dimensions and materials can be entered, this includes the size of plate heat exchanger and chevron angle (25 to 65 degrees). List of main features: 1- User friendly and easy to use with ability to save/load data. 2- Estimate the Physical properties of more than 1450 components; the database has the ability to estimate Thermal Conductivity, Density, Heat Capacity and Viscosity. The database also included critical properties, boiling and melting points. 3- Estimate mixture properties. 4- Create you own database of Plates and Components. You can add your fluid physical properties and load the data to your project with a click of a button and more... 5- Chose between S.I. or English U.S. units of measurements. 6- Temperature and Flow rate estimation in the event of insufficient data. 7- Heat load required (clean or fouled) calculations. 8- Duty clean / dirty calculations 9- Total effective area calculation. 10- Surface area calculation. 11- Number of plates calculations. 12- Overall Coefficient (clean / dirty) calculations. 13- Pressure drop Channel/Port/Total for Hot side and Cold side Calculations. 14- Plate heat exchanger dimension calculations. 15- Velocity through ports, Mass velocity through channel/ports calculations. 16- Reynolds and Nusselt numbers calculations. 17- Heat transfer coefficient calculations 18- Summary of results with image to help in understanding.
Tags: chemical, engineering, gasketed, plate, heat, exchanger, design, …

VeryPDF PCL Converter quickly converts PCL and PXL print files to Adobe Acrobat PDF files as well as TIF, TIFF, JPG, JPEG, BMP, PCX, PXL files. This is not a raster based conversion. VeryPDF PCL Converter can be used to create either bitmap files (PCX, TIF, JPEG, BMP etc.) at various resolutions or searchable PDF files.

VeryPDF PCL Converter is the fastest and most accurate converter of PCL, PXL, PX3 to PDF, TIFF and other distribution formats. Integrate high-volume batch conversion into your server-based application or workflow.

VeryPDF PCL Converter Features:
1. Standalone software, Adobe Acrobat and Reader NOT required!
2. Convert LaserJet PCL and PXL to PDF (Portable Document Format), PCL to PDF, PXL to PDF.
3. Convert PCL5e, PCL5c and HP-PCL print files, and vector graphics to searchable PDF, the output PDF files are fully searchable in Acrobat and can be indexed in Acrobat Catalog.
4. Now you can convert your LaserJet PCL print files to industry standard PDF (Portable Document Format), PDF documents can be viewed and printed using the Adobe Acrobat range of products, distribute your print files around the Internet or your company Intranet for easy viewing, searching and printing.
5. Turns laser printer output files (PCL, PXL, PX3) into raster image files and vector documents (PDF, TIF, TIFF, JPG, JPEG, BMP, PCX, PXL) without need the third part products.
6. Smallest PDF file size within conversion.
7. Indispensable in the development of Windows electronic form applications that use HP PCL form overlays or as a tool for developers of HP PCL4/5/5e/5c + PCL XL (PCL6) applications on Windows platform.
8. It is convenient and easy to operate, and documents can be directly dragged from Windows Explorer and converted fast.
9. Support sorting on file name when conversion in batch.
10. Support single file process, single directory process, multi-level directory process and many other process way.

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DTM Data Modeler is a CASE tool for database developers that supports both forward and reverse engineering. It is an easy-to-use tool allowing you to work both with logical and physical data models in the form of an entity-relationship diagram.
Tags: database, case, tool, design, data, modeling, schema, designer, database case tool, database design, data modeling, database modeling, database schema, database designer, …

Easy to use software demonstrates the chemical design & rating calculations of Shell and Tube Heat Exchangers.Unlike other tools, ensures that calculations are performed step by step to help in understanding the design calculations...etc
Tags: heat, exchanger, design, rating, shell, tube, process, chemical, engineering, …

Easy to use software demonstrates the procedures to estimate the net present value of industrial process plants. the calculation involves, fixed capital investment, operating labour,utility costs,raw materials & profits and production costs and m
Tags: process, industrial, economics, chemical, engineering, management, net, present, value, update, plant, cost, estimates, net present value, …

Senomix Timesheets is the easiest networked time tracking software for engineering and project-based offices. All features are installed in minutes to let you track time, project progress or export data to QuickBooks, MYOB or Peachtree.
Tags: time, tracking, timesheet, tracker, timesheets, sheet, quickbooks, time tracking, time tracker, time sheet, timesheet tracking, …

Zend Guard, with its key components of Encoding, Obfuscating and Licensing, protects your PHP applications from reverse engineering, unauthorized customization, unlicensed use and redistribution. Zend Guard helps you distribute your PHP apps securely
Tags: encode, encoder, obfiscation, obfiscate, license, manager, generator, php, license manager, license generator, …

ODEcalc (tm): An Ordinary Differential Equation (ODE) Calculator! Nonlinear ODEs. State your equation, boundary/initial value conditions & it solves your problem. Plots solution y & derivative ydot versus x. Calculus Programming demo applicat
Tags: ode, calculator, differential, equations, science, engineering, teaching, ordinary, calculus, programming, ode calculator, differential equations, ordinary differential equations, calculus programming, …