Image via Wikipedia
A research project at the Vienna University of Technology (TU Vienna) has paved way to smallest and affordable printers,producing 3-D objects.Several scientific fields have to come together, to design a 3D-printer. The device was assembled by mechanical engineers in the research group of professor Jürgen Stampfl, but also the chemical research by the team of professor Robert Liska was of crucial importance: first, chemists have to determine which special kinds of synthetic material can be used for printing.
The basic principle of the 3D-printer is quite simple: The desired object is printed in a small tub filled with synthetic resin. The resin has a very special property: It hardens precisely where it is illuminated with intense beams of light. Layer for layer, the synthetic resin is irradiated at exactly the right spots. When one layer hardens, the next layer can be attached to it, until the object is completed. This method is called “additive manufacturing technology.” “This way, we can even produce complicated geometrical objects with an intricate inner structure, which could never be made using casting techniques,” Klaus Stadlmann explains. He developed the prototype together with Markus Hatzenbichler.
This is a preview of Tissue Engineering:The World’s Smallest 3-D Printer. Read the full post (553 words, 2 images, estimated 2:13 mins reading time)
Below given are certain notes in microcontrollers which will help you enhance your basic knowledge in microcontrollers starting from the very basic concepts these notes help in undersatnding the in depth knowledge about 8051
Its good for students as well as lecturers who are new for this field.
Permanent link to this post
(61 words, 1 image, estimated 15 secs reading time)
This article will interface you with the step by step things required when you are about to make your own Pulse oximeter.
Principles of Pulse Oximetry Technology:
The principle of pulse oximetry is based on the red and infrared light absorption characteristics of oxygenated and deoxygenated hemoglobin. Oxygenated hemoglobin absorbs more infrared light and allows more red light to pass through. Deoxygenated (or reduced) hemoglobin absorbs more red light and allows more infrared light to pass through. Red light is in the 600-750 nm wavelength light band. Infrared light is in the 850-1000 nm wavelength light band.
This is a preview of HOW TO MAKE A PULSE OXIMETER?-BIOMEDICAL FINAL YEAR PROJECTS. Read the full post (985 words, 4 images, estimated 3:56 mins reading time)