ADVANCES IN WIRELESS COMMUNICATION AND NETWORKING (WiCoN)
15th June to 26th June, 2009
ACCOMMODATION
All the participants from AICTE approved institutions will
be provided with free of charge boarding and lodging
facilities within NITC campus.
ABOUT CALICUT
Calicut is a major centre of higher education, learning and
research in Kerala. It is the hometown of institutions of
national importance including NITC, IIMK, DOEACC, and
CWRDM. Direct trains to most of the major cities in India
connect Calicut. It is also well connected by road to
Mangalore, Bangalore, Ooty, Coimbatore, Cochin,
Trivandrum, etc. Calicut also has an International Airport
about 45 km away from NIT Calicut.
ABOUT NITC
National Institute of Technology Calicut is one of the premier
technical institutions in India. NITC is set in a picturesque
landscape at the foothills of the Western Ghats, located on
the Calicut-Mukkam road, about 22km from Calicut City.
The institute offers eight undergraduate and twenty four
postgraduate programmes apart from Ph.D. programmes
offered in different departments. The institute has excellent
infrastructure in computing, information technology,
laboratories and library including hi-tech Nalanda digital
library. Round the clock internet access is available for all
staff and students.
ABOUT ECE DEPARTMENT@ NITC
The ECE Department offers undergraduate programme in
Electronics and Communication Engineering, graduate
programmes in Telecommunication, Signal Processing,
Electronic Design & Technology, and Microelectronics &
VLSI and research programme leading to Ph.D. Degree. The
major research activities are in the areas of Communication
and signal processing.
COURSE OBJECTIVE
Last fifteen years have witnessed a tremendous growth in
the way people communicate each other. Since its modest
beginning in the 80’s with the analog cellular system and
later in 90’s with the digital cellular systems, wireless
communication systems have evolved from country/
manufacturer specific technologies to organized and
standardized technologies deployed worldwide aimed at
meeting the demand of global markets. While the second
generation cellular systems were capable of supporting only
voice and limited data transfer, the third and upcoming 4G
cellular systems are capable of providing data rates from
2Mbps to as high as 1Gbps. Parallel to the developments in
2G and 3G cellular wireless systems, Wi-Fi and Wi-MAX
standards are evolved to facilitate very high data rate wireless
connectivity to fixed and limited mobility services and the
standardization activities of mobile Wi-MAX, which is
expected to change the wireless world, is at the final stage.
The key technologies that enabled the wireless revolution
are Wideband CDMA, OFDM, Space-Time Coding, MIMO
Systems and their combinations. The signal processing
challenges of today’s communication receivers are
tremendously complex. The course addresses some of the
basics of these technologies, the signal processing issues,
key topics in networking and standardization activities in
current and next generation wireless systems. The course
topics are selected to provide both an overview as well as
some insight into the research issues being undertaken in
this area.
COURSE CONTENT
Evolution of wireless communication systems
An overview of Physical layer
Channel modeling
Technologies for broadband wireless access:
Spread Spectrum & CDMA
OFDM & Multicarrier CDMA
Space Time Coding & MIMO Systems
MIMO-OFDM & OFDMA
Ultra-Wide Band (UWB)
IEEE 802.11 Standards: Architecture, protocols and
enhancements
Wireless Sensor Networks
IEEE 802.16 Standards
Timing and Frequency synchronization in OFDM
Channel estimation and equalization in OFDM
Mobile Adhoc Networks (MANETS)
Cognitive Radio & IEEE 802.22 Standards
Audio & Video Coding for Wireless Communication
RESOURCE PERSONS
The faculty for the course will be from National Institute
of Technology Calicut, IIT’s/IISc and industry.
ELIGIBILITY
The course is open to teachers from AICTE approved
Engineering Colleges with a basic qualification in ECE/
CSE/EEE.
REGISTRATION FEE
A registration fee of Rs. 300/- has to be paid (refundable
only if not selected or the course is attended fully on selection)
through a crossed demand draft, drawn in favor of
“COORDINATOR, FDP ON WICON 2009” payable at State
Bank of India, CREC Chathamangalam Branch (Code 2207).
HOW TO APPLY
Application in the attached form or in a similar format duly
recommended/sponsored by the Head of the Institution along
with the DD for the registration amount should reach the
coordinator by 30th April 2009. Application forms can also
be downloaded from NITC website (www.nitc.ac.in).
Selection shall be on a first come first serve basis subject
to NITC norms. You shall be intimated about your
participation status through e-mail by 15th May, 2009.
ADDRESS FOR CORRESPONDENCE
Sri S.M. Sameer/Dr A.V. Babu
Coordinator, FDP on WiCoN
Department of Electronics & Communication Engineering
National Institute of Technology
Calicut - 673601, Kerala.
Phone: 0495-2286720/2286706
Email: sameer@nitc.ac.in, babu@nitc.ac.in
Sunday, April 26, 2009
Studies on Influence of Process methodologies on Mechanical properties of Al-Si-Mg alloys
Studies on Influence of Process methodologies on Mechanical properties of Al-Si-Mg alloys
Name of Research Scholar : N.H. Siddalingaswamy (P 05 0008 ME)
Title : Studies on Influence of Process methodologies on Mechanical properties of Al-Si-Mg alloys
Research Supervisors : Dr. M.A. Joseph, Asst. Professor, MED Dr. N.M. Nagarajan, Professor (Rtd.), MED
Date, Day and Time : First Presentation : 30th April 2009, Thursday, 4:15 pm
Second Presentation: 11th May 2009, Monday, 4:15 pm
Venue : MED Seminar Hall
National Institute of Technology Calicut
Department of Mechanical Engineering
Ph.D. Open Seminar Announcement
ABSTRACT
Aluminium-Silicon-Magnesium cast alloys have become potential engineering materials for
automotive, aerospace, defence and other general engineering applications due to their high specific
strength and specific modulus, low coefficient of thermal expansion (CTE), good thermal
conductivity, good resistance to corrosion and oxidation. Properties of Al-Si-Mg cast alloys mainly
depend on the shape, size and size distribution of second phase particles, as well as the
morphologies and amounts of intermetallic phases present in the matrix, which in turn depend on
the composition of alloy and solidifying conditions. Many researchers and material scientists have
been endeavouring over the past four decades for effective process variations towards achieving
improved mechanical properties of this alloy system. Significant efforts have been directed during
the last decade towards determining the effect of modification and heat treatment for obtaining
improved mechanical properties of Al-Si-Mg alloys. However, the combined effect of modification,
vibration during solidification and heat treatment on the properties has not been closely examined.
The present work deals with the following:
i. Modification of the alloy,
ii. Grain refinement by vibration during solidification,
iii. Heat treatment,
iv. Evaluation of Mechanical properties,
v. Wear behaviour and
vi. Machinability of Al-Si-Mg and Al-Si-Mg-Cu cast alloys.
The specific objectives of the present work are:
· To study the mechanical properties such as Tensile strength, Hardness and
Toughness, Wear behaviour and Machinability of hypoeutectic, eutectic and
hypereutectic Al-Si-Mg cast alloys with and without copper (minor) addition.
· To study the effect of mould material (sand and graphite) on the mechanical,
wear and machinability properties of cast alloys.
· To study the individual and combined effect of modification, vibration during
solidification and heat treatment on the mechanical, wear, and machinability
properties of the cast alloys.
· To perform simulation studies (using widely used commercial code) and
validate the same with experimental cooling curve studies of the
solidification of the cast alloys.
The test castings were prepared using sand and graphite moulds. Test specimens for the
characterisation studies were prepared from the castings made in different conditions. Tests have
been carried out to find the strength, wear, and machinability properties as per ASTM standards.
The metallurgical characterization has been made using Optical and Scanning Electron Microscope
(SEM).
Test results revealed that Al-Si-Mg alloys without modification or vibration during
solidification show low tensile strength, hardness and toughness, while considerable increase in
the above properties are observed in the alloys with combined effect of modification, vibration and
heat treatment. The enhancement in the properties is more pronounced with minor addition of
copper.
The results of wear studies with different conditions exhibit the dependence of silicon
morphology (eutectic), shape and size distribution of both -Al grains (hypoeutectic) and primary
silicon (hypereutectic), apart from inter metallic compounds of Al-Si-Mg cast alloys. The reduction
in wear rates of cast alloys can be attributed to the presence of hard silicon particles in high silicon
content alloys, which restrict the dislodging of the mating surface. Wear rate is high in un-modified
specimens and least in modified-vibrated and heat treated specimens.
The machinability characteristics of Al-Si-Mg cast alloys were evaluated using lathe under
dry environment with constant feed rate, cutting speed and depth of cut using un-coated, PVD and
CVD diamond coated turning inserts. Surface roughness of machined alloys under different
conditions was quantified using Ra m) and Rz m) parameters with the help of surface roughness
tester. Improved machinability and good surface finish are obtained in the case of modified-vibrated
and heat treated cast alloys. Also, results revealed that the cutting forces are high for un-coated and
PVD insert where as substantially low for CVD diamond insert. Such low cutting forces for CVD
diamond insert could be due to the poor affinity of diamond for non-ferrous materials like Al-Si-Mg
cast alloys. The improvements in properties observed in the present studies are mainly due to the
variations in microstructure brought in by the effect of modification, vibration and heat treatment
apart from alloy composition.
The cooling curve studies and simulation studies were conducted to have a better
understanding of the solidification phenomenon on the properties of the alloys under unmodified,
modified and modified-vibrated conditions.
Name of Research Scholar : N.H. Siddalingaswamy (P 05 0008 ME)
Title : Studies on Influence of Process methodologies on Mechanical properties of Al-Si-Mg alloys
Research Supervisors : Dr. M.A. Joseph, Asst. Professor, MED Dr. N.M. Nagarajan, Professor (Rtd.), MED
Date, Day and Time : First Presentation : 30th April 2009, Thursday, 4:15 pm
Second Presentation: 11th May 2009, Monday, 4:15 pm
Venue : MED Seminar Hall
National Institute of Technology Calicut
Department of Mechanical Engineering
Ph.D. Open Seminar Announcement
ABSTRACT
Aluminium-Silicon-Magnesium cast alloys have become potential engineering materials for
automotive, aerospace, defence and other general engineering applications due to their high specific
strength and specific modulus, low coefficient of thermal expansion (CTE), good thermal
conductivity, good resistance to corrosion and oxidation. Properties of Al-Si-Mg cast alloys mainly
depend on the shape, size and size distribution of second phase particles, as well as the
morphologies and amounts of intermetallic phases present in the matrix, which in turn depend on
the composition of alloy and solidifying conditions. Many researchers and material scientists have
been endeavouring over the past four decades for effective process variations towards achieving
improved mechanical properties of this alloy system. Significant efforts have been directed during
the last decade towards determining the effect of modification and heat treatment for obtaining
improved mechanical properties of Al-Si-Mg alloys. However, the combined effect of modification,
vibration during solidification and heat treatment on the properties has not been closely examined.
The present work deals with the following:
i. Modification of the alloy,
ii. Grain refinement by vibration during solidification,
iii. Heat treatment,
iv. Evaluation of Mechanical properties,
v. Wear behaviour and
vi. Machinability of Al-Si-Mg and Al-Si-Mg-Cu cast alloys.
The specific objectives of the present work are:
· To study the mechanical properties such as Tensile strength, Hardness and
Toughness, Wear behaviour and Machinability of hypoeutectic, eutectic and
hypereutectic Al-Si-Mg cast alloys with and without copper (minor) addition.
· To study the effect of mould material (sand and graphite) on the mechanical,
wear and machinability properties of cast alloys.
· To study the individual and combined effect of modification, vibration during
solidification and heat treatment on the mechanical, wear, and machinability
properties of the cast alloys.
· To perform simulation studies (using widely used commercial code) and
validate the same with experimental cooling curve studies of the
solidification of the cast alloys.
The test castings were prepared using sand and graphite moulds. Test specimens for the
characterisation studies were prepared from the castings made in different conditions. Tests have
been carried out to find the strength, wear, and machinability properties as per ASTM standards.
The metallurgical characterization has been made using Optical and Scanning Electron Microscope
(SEM).
Test results revealed that Al-Si-Mg alloys without modification or vibration during
solidification show low tensile strength, hardness and toughness, while considerable increase in
the above properties are observed in the alloys with combined effect of modification, vibration and
heat treatment. The enhancement in the properties is more pronounced with minor addition of
copper.
The results of wear studies with different conditions exhibit the dependence of silicon
morphology (eutectic), shape and size distribution of both -Al grains (hypoeutectic) and primary
silicon (hypereutectic), apart from inter metallic compounds of Al-Si-Mg cast alloys. The reduction
in wear rates of cast alloys can be attributed to the presence of hard silicon particles in high silicon
content alloys, which restrict the dislodging of the mating surface. Wear rate is high in un-modified
specimens and least in modified-vibrated and heat treated specimens.
The machinability characteristics of Al-Si-Mg cast alloys were evaluated using lathe under
dry environment with constant feed rate, cutting speed and depth of cut using un-coated, PVD and
CVD diamond coated turning inserts. Surface roughness of machined alloys under different
conditions was quantified using Ra m) and Rz m) parameters with the help of surface roughness
tester. Improved machinability and good surface finish are obtained in the case of modified-vibrated
and heat treated cast alloys. Also, results revealed that the cutting forces are high for un-coated and
PVD insert where as substantially low for CVD diamond insert. Such low cutting forces for CVD
diamond insert could be due to the poor affinity of diamond for non-ferrous materials like Al-Si-Mg
cast alloys. The improvements in properties observed in the present studies are mainly due to the
variations in microstructure brought in by the effect of modification, vibration and heat treatment
apart from alloy composition.
The cooling curve studies and simulation studies were conducted to have a better
understanding of the solidification phenomenon on the properties of the alloys under unmodified,
modified and modified-vibrated conditions.
Recent Advances in Materials and Processing Technologies
Recent Advances in Materials and Processing Technologies
RESOURCE PERSONS
Note: All correspondence through email only
The lectures will be delivered by eminent scientists
from R & D labs, industry persons and faculty from
IISc, IITs and NITT.
ELIGIBILITY & REGISTRATION
Faculty from AICTE approved institutions are
eligible to participate.
Participants from Industries, Govt / Semi-Govt.
organization and Institutions not approved by the
AICTE are also eligible, provided they meet their
TA/DA, etc.
ö Faculty members : Rs. 500/-
(refundable)
ö Other members : Rs.2000/-
Registration can be made with the course
coordinators in the prescribed application form
along with crossed Demand Draft in favor of
"Director, NITT" payable at Tiruchirappalli.
TRAVEL AND ACCOMMODATION
Selected faculty members from AICTE approved
Institutions will be paid maximum AC-3 tier to and
fro journey by shortest route from their respective
place of work on production of travel tickets.
Boarding and lodging will be provided in the
college hostels.
IMPORTANT DATES
Last date for receiving the Completed
registration form : 22.05.2009
Notification regarding selection : 25.05.2009
ABOUT THE COURSE
Dr. B. Ravisankar,
Course Co-ordinator
Materials have paved way for civilization and
engineering excellence. Today, advanced, special
purpose strategic, nano, bio, smart and futuristic
materials dictate the technological and
supremacy of the country. An integrated multi
disciplinary approach involving planning,
processing, characterization and adoption of
these materials is need of the hour. The success
journey of the mission CHANDRAYAN - 1 is
clearly proving the importance of the materials
technology.
The aim of this programme is to provide an
environment where experts from research
institutions, professionals from industry and
academia collaborate to identify and address
pivotal multidisciplinary issues in materials and
its processing technologies. It is planned to give
more insight into materials field and provides a
deeper knowledge of the importance of
materials and its applications. We believe that
faculty attending this programme will enhance
their knowledge in broad aspects so that better
input will be transferred to the student
community.
TOPICS TO BE COVERED
ö Aerospace materials ö Automobile materials
ö Boiler grade Materials ö Nuclear Materials
ö Steels and cast irons ö Light alloys
ö Superalloys ö Bulk Metallic Glasses
ö Metal Matrix Composites ö Ceramics & Polymers
ö Nano Materials ö Bio Materials
ö Magnetic and Electronic Materials
ö Welding and its allied processes
ö Foundry & Metal Casting ö Metal Forming
ö Corrosion Engineering ö Powder Metallurgy
ö Surface Engineering & Tribology
ö Process Modeling
ADDRESS FOR CORRESPONDANCE
Dept. of Metallurgical and Materials Engineering
National Institute of Technology,
Tiruchirappalli - 620015, Tamilnadu.
Email : brs@nitt.edu Mobile : 94430 22544
RESOURCE PERSONS
Note: All correspondence through email only
The lectures will be delivered by eminent scientists
from R & D labs, industry persons and faculty from
IISc, IITs and NITT.
ELIGIBILITY & REGISTRATION
Faculty from AICTE approved institutions are
eligible to participate.
Participants from Industries, Govt / Semi-Govt.
organization and Institutions not approved by the
AICTE are also eligible, provided they meet their
TA/DA, etc.
ö Faculty members : Rs. 500/-
(refundable)
ö Other members : Rs.2000/-
Registration can be made with the course
coordinators in the prescribed application form
along with crossed Demand Draft in favor of
"Director, NITT" payable at Tiruchirappalli.
TRAVEL AND ACCOMMODATION
Selected faculty members from AICTE approved
Institutions will be paid maximum AC-3 tier to and
fro journey by shortest route from their respective
place of work on production of travel tickets.
Boarding and lodging will be provided in the
college hostels.
IMPORTANT DATES
Last date for receiving the Completed
registration form : 22.05.2009
Notification regarding selection : 25.05.2009
ABOUT THE COURSE
Dr. B. Ravisankar,
Course Co-ordinator
Materials have paved way for civilization and
engineering excellence. Today, advanced, special
purpose strategic, nano, bio, smart and futuristic
materials dictate the technological and
supremacy of the country. An integrated multi
disciplinary approach involving planning,
processing, characterization and adoption of
these materials is need of the hour. The success
journey of the mission CHANDRAYAN - 1 is
clearly proving the importance of the materials
technology.
The aim of this programme is to provide an
environment where experts from research
institutions, professionals from industry and
academia collaborate to identify and address
pivotal multidisciplinary issues in materials and
its processing technologies. It is planned to give
more insight into materials field and provides a
deeper knowledge of the importance of
materials and its applications. We believe that
faculty attending this programme will enhance
their knowledge in broad aspects so that better
input will be transferred to the student
community.
TOPICS TO BE COVERED
ö Aerospace materials ö Automobile materials
ö Boiler grade Materials ö Nuclear Materials
ö Steels and cast irons ö Light alloys
ö Superalloys ö Bulk Metallic Glasses
ö Metal Matrix Composites ö Ceramics & Polymers
ö Nano Materials ö Bio Materials
ö Magnetic and Electronic Materials
ö Welding and its allied processes
ö Foundry & Metal Casting ö Metal Forming
ö Corrosion Engineering ö Powder Metallurgy
ö Surface Engineering & Tribology
ö Process Modeling
ADDRESS FOR CORRESPONDANCE
Dept. of Metallurgical and Materials Engineering
National Institute of Technology,
Tiruchirappalli - 620015, Tamilnadu.
Email : brs@nitt.edu Mobile : 94430 22544
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