TIET Newsletter
July 2016
In this Issue
  • Finding A New Formula For Concrete
  • Engineers Design Programmable RNA Vaccines
  • Sensing Trouble: A New Way To Detect Hidden Damage In Bridges, Roads
  • TIET Updates

Most of the cities in our country today are characterized by high-density urban areas with lack of proper roads and parking facilities, poor public transport system, and lack of road user discipline. This causes traffic congestion, transport-borne pollution, heavy fuel consumption, poor level of service to the commuter etc. So far, only isolated approaches to solve problems on individual basis have been used in most of these cases, providing temporary solution to the problem without considering its impact on other areas. In such a situation, an integrated approach with different combinations of measures and their impact on different goal areas such as mobility, safety, environment etc need to be studied while focusing on infrastructural expansion, and proper measures need to be taken to address the traffic and transport needs and devise a comprehensive urban transport strategy for such cities.

Finding A New Formula For Concrete
In a paper published online in the journal Construction and Building Materials, the team contrasts cement paste -- concrete's binding ingredient -- with the structure and properties of natural materials such as bones, shells, and deep-sea sponges. As the researchers observed, these biological materials are exceptionally strong and durable, thanks in part to their precise assembly of structures at multiple length scales, from the molecular to the macro, or visible, level.

From their observations, the team, led by Oral Buyukozturk, a professor in MIT's Department of Civil and Environmental Engineering (CEE), proposed a new bioinspired, "bottom-up" approach for designing cement paste.

"These materials are assembled in a fascinating fashion, with simple constituents arranging in complex geometric configurations that are beautiful to observe," Buyukozturk says. "We want to see what kinds of micromechanisms exist within them that provide such superior properties, and how we can adopt a similar building-block-based approach for concrete."

"If we can replace cement, partially or totally, with some other materials that may be readily and amply available in nature, we can meet our objectives for sustainability," Buyukozturk says.

Engineers Design Programmable RNA Vaccines
MIT engineers have developed a new type of easily customizable vaccine that can be manufactured in one week, allowing it to be rapidly deployed in response to disease outbreaks. So far, they have designed vaccines against Ebola, H1N1 influenza, and Toxoplasma gondii (a relative of the parasite that causes malaria), which were 100 percent effective in tests in mice.

The vaccine consists of strands of genetic material known as messenger RNA, which can be designed to code for any viral, bacterial, or parasitic protein. These molecules are then packaged into a molecule that delivers the RNA into cells, where it is translated into proteins that provoke an immune response from the host.

In addition to targeting infectious diseases, the researchers are using this approach to create cancer vaccines that would teach the immune system to recognize and destroy tumors.

"This nanoformulation approach allows us to make vaccines against new diseases in only seven days, allowing the potential to deal with sudden outbreaks or make rapid modifications and improvements," says Daniel Anderson, an associate professor in MIT's Department of Chemical Engineering and a member of MIT's Koch Institute for Integrative Cancer Research and Institute for Medical Engineering and Science.


Sensing Trouble: A New Way To Detect Hidden Damage In Bridges, Roads
Few years back, Erik Thostenson and Thomas Schumacher, both affiliated faculty members in the University of Delaware's Center for Composite Materials, began to explore the use of carbon nanotube composites as a kind of "smart skin" for structures.

Now, they have improved on this approach with the addition of another technique called Electrical Impedance Tomography (EIT), which uses surface electrode measurements to create an image of the conductivity of a material or structure. While EIT has been used as a noninvasive medical imaging technique since 1980s, it has largely been overlooked by the structural health monitoring community.

"Although we did encounter some issues with the size of cracks being overestimated and their shapes not being well represented, overall our EIT methodology was able to detect the initiation of damage well before it was visible with infrared thermography," Schumacher says. "We are in the process of making improvements to the EIT algorithm to increase its accuracy. After that, we plan to demonstrate it in the laboratory, with an aim toward scaling it up for future monitoring of real structures."

1.  TIET provided consultancy services to MINDA Nabtesco Automotive Pvt. Ltd for Spring Brake Actuator (SBA) FE analysis in 4 Conditions (Tests) with 3.2 mm thickness Cylinder. The Static Structural Analysis was carried out on Cylinder, Piston, and Spring with three load cases and the following tests were conducted:
  • Parking Test
  • Running Test
  • Burst Test
  • Wind off Test
2.  TIET organized a 2-days workshop on Autodesk Fusion 360.
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 AutoCAD 2017: A Problem-Solving Approach, Basic and Intermediate, 23rd Edition; AutoCAD Electrical 2017 for Electrical Control Designers, 8th Edition; Exploring Autodesk Revit 2017 for Architecture, 13th Edition; Exploring AutoCAD Map 3D 2017, 7th Edition; Autodesk Inventor 2017 for Designers, 17th Edition; Autodesk 3ds Max 2017: A Comprehensive Guide, 17th Edition; Autodesk 3ds Max 2017 for Beginners: A Tutorial Approach, 17th Edition; Introduction to C++ Programming, 2nd Edition; Exploring AutoCAD Raster Design 2016; Exploring Oracle Primavera P6 v7.0; 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; MAXON CINEMA 4D R17 Studio: A Tutorial Approach, 4th Edition... 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 ETabs 2016; Exploring RISA 3D, Mold Wizard using NX 10.0; SOLIDWORKS Simulation 2016: A Tutorial Approach; Exploring Primavera P6 V8.4; Learning Oracle 12c: A PL/SQL Approach ... 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 copyright of these items.

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