TIET Newsletter
Jan 2016
In this Issue
  • Customized Knee Replacement, Courtesy Of A 3–D Printer
  • Bridging Nanoparticles Create Reversible Colour Change for Displays
  • 3-D Printing Helped Save Babies Conjoined From Chest To Pelvis
  • TIET Updates

Humans have been using the earth and the natural world as the source of products and services for their needs. These resources are vital to the survival and development of the human population. But the unmindful and avaricious approach in exploitation of the earth has led to severe damage to the natural world and brought catastrophic results and climate change is one of them. Science has made enormous inroads in understanding climate change and its causes, and is beginning to help develop a strong understanding of current and potential impacts that will affect people today and in coming decades. This understanding is crucial because it allows decision makers to place climate change in the context of other large challenges facing the nation and the world. There are still some uncertainties, and there always will be in understanding a complex system like Earth's climate. Nevertheless, there is a strong, credible evidence, documenting that climate is changing and largely due to human activities. While much remains to be learned, the basic issue of climatic change need a serious scientific debate and also a careful evaluation of alternative explanations.

Customized Knee Replacement, Courtesy Of A 3–D Printer
After D.C. resident Christina Starr was hit by a motorcycle in 2009, three surgeons told her not to return to ballet class. After five years of cortisone shots, she started looking into getting a knee replacement, and was surprised when the surgeon Chris Cannova offered something she hadn't heard before–a customized knee replacement made using a 3-D printer. Two days after the surgery this August, she walked out of the hospital without crutches, and six weeks later, she returned to dance class.

The 3-D printers are machines that produce physical objects by spraying ultra-thin layers of material on top of one another. In recent years, the medical industry has been using printers to create a variety of products from artificial heart valves to skin grafts. Some are even experimenting with printing entire organ. Surgeon Cannova and his partner are among the first surgeons in the Washington area using knee implants made with a 3-D printer, and they have used them in hundreds of operations in the past two years.

The medical significance of Cannova's technique lies in the ability to customize a new knee for each patient. Most surgeons go into a knee surgery with seven possible knee sizes, and pick the one that appears to be the closest fit while the patient is on the surgical table. Then they chip away at different parts of the bone until the implant fits, potentially leaving the patient with years of discomfort if the size isn't quite right.

Bridging Nanoparticles Create Reversible Colour Change for Displays
A method for building tiny "drawbridges" could allow engineers to use standard electrical switching techniques to construct colour displays from pairs of nanoparticles that scatter different colours of light. The chemical bridges can be created and eliminated simply by applying or reversing a voltage. Researchers from Rice University's Smalley-Curl Institute said it is the first method demonstrated to produce dramatic, reversible colour changes for devices built from light-activated nanoparticles.
Stained-glass makers have long employed the light-scattering properties of tiny gold nanoparticles to produce glass with rich red tones. Though metal nanoparticles scatter bright light, researchers have found it difficult to use them to produce dramatically different colours. The Rice team's method for colour switching incorporates pairs of metal nanoparticles that absorb light energy and convert it into plasmons. Each plasmon scatters and absorbs a characteristic frequency of light, and even minor changes in the wavelike sloshing of a plasmon shifts that frequency. The greater the change in plasmonic frequency, the greater the difference between the colours observed.

Gold nanoparticles are particularly attractive for display purposes because, depending upon their shape, they can produce a variety of colours. They are also extremely stable, and even though gold is expensive, a small quantity can produce an extremely bright colour.

3–D Printing Helped Save Babies Conjoined From Chest To Pelvis
Kneatayle Hope and Adeline Faith Mata are even more unique than any average identical twins. The Texan girls were born conjoined, which only happens about once in every 200,000 live births. And they were very conjoined–conjoined from chest to pelvis. This case was unique in the extent of fusion, Rajesh Krishnamurthy, chief of radiology research and cardiac imaging at Texas Children's Hospital, said in a statement. It was one of the most complex separations ever for conjoined twins. Krishnamurthy and his colleagues presented a study on the case at the Radiological Society of North America's annual meeting.

For performing this operation, a 3-D model of the conjoined twins was created to understand the complexity of operation and help surgeons prepare for the girls' separation surgery. The girls had thoraco-omphalo-pyopagus -- which means they were connected from the chest all the way down to their shared pelvis. Conjoined twins occur when a single fertilized egg -- destined to become a pair of identical babies -- fails to completely split into two. Separation surgery is no longer the death sentence to one twin that it once was, but it's still a risky operation -- especially if important organs are shared. But the hospital's surgical team managed to separate and save both infants during a 26-hour surgery in February, when they were just 10 months old. Now, the girls are both living at home.
  • TIET has signed up with Donaldson India for a structural analysis project. TIET will perform structural analysis of support structure for air filtration system installed at the plant of Maruti Suzuki India Pvt Ltd, Gurgaon.

  • TIET joined hands with COWI India, a leading service provider in the field of Digital Mapping & GIS applications, Photogrammetry, bridges & tunnels, marine structures, roads & airports. TIET has been signed up for providing training on AutoCAD Plant 3D to their design team.

  • TIET is in talks with colleges/universities for jointly launching its one year Post Graduate Certificate Programs (PGCP) for Civil and Mechanical Design engineers.

Textbook Overview
CADCIM Technologies publishes textbooks on Computer Aided Design, Manufacturing, and Engineering (CAD/CAM/CAE), Civil, GIS, Animation, and Computer Programming software... More

New Releases
CADCIM announces the release of SOLIDWORKS 2016 for Designers, 14th Edition; CATIA V5-6R2015 for Designers, 13th Edition; Solid Edge ST8 for Designers, 13th Edition; AutoCAD Electrical 2016 for Electrical Control Designers, 7th Edition; NX 10.0 for Designers, 9th Edition; MAXON CINEMA 4D Studio R17: A Tutorial Approach; AutoCAD LT 2016 for Designers, 11th Edition; SOLIDWORKS 2016: A Tutorial Approach; Adobe Flash Professional CC 2015: A Tutorial Approach; Pixologic ZBrush 4R7: A Comprehensive Guide; ... More

Upcoming Textbooks
Our team of authors is currently working on the new and latest releases of various software packages and will soon come up with  Exploring Oracle Primavera P6 v7.0; NX Nastran 9.0 for Designers; Learning SOLIDWORKS 2016: A Project based Approach; Exploring Raster Design 2016 for Image Processing; Exploring ETabs 2016; Exploring RISA 3D... More

***The news items contained in this newsletter have been compiled from various publications and restructured to make our readers familiar with emerging technologies. TIET does not claim any copy right of these items.

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