Madhawa's Blog

i'm Madhawa Ranga following BSc. in Materials Science and Engineering at the University of Moratuwa.

Materials science – Wikipedia, the free encyclopedia March 28, 2008

Filed under: Uncategorized — madhawa.h @ 9:22 am

Materials science – Wikipedia, the free encyclopedia

 

My design – Improvement to the traditional cane tea collector

Filed under: design,designs,engineering,innovations,tea,tea collector — madhawa.h @ 8:54 am
This is a design I and 3 of my friends suggest for improvement of the traditional cane tea collector.

Question
The traditional cane tea collector basket used in the tea industry is becoming increasingly unpopular among the new generation of state workers. There is a need for an improved basket that will overcome the disadvantages of the traditional basket. What are the factors you have to consider in developing a new design solution for collecting fresh tea leaves plucked by the state workers?

Main factors which should be considered

 Preserve the freshness of the leaves
 Comfortability of the collector
 Higher capacity, to collect more tea leaves at a time
 Easy and compact in transportation and storage of the baskets

Disadvantages/weaknesses of the traditional cane tea collector

 The basket is heavy, because it is made out of cane
 Because of the round shape, the basket can rotate around it when it is hanged on the back/around the head
 Low life time
 Incomfortability to the collector (can cause pains in back and/or neck)
 Difficulty in storing the baskets because the baskets are handmade and can be in various sizes

Solutions we decided

 New basket will be made by nylon strings (with spaces on the wall)
 Air can circulate through the spaces on the wall, so that the leaves will not braise
 That will reduce the weight of the basket
 Nylon has more life time than cane
 The new design can be stored in a small space, because it can be folded

 The shape of the basket is changed to a shape which will not waggle around the user
 The round shape is changed in to a shape where wore surface will touch the user’s back

 The shape of the basket changed to comfort the user
 That will reduce the pains the user will face

 

Remember…. March 19, 2008

Filed under: Remember.... — madhawa.h @ 8:10 am

NEVER CRY FOR ANY RELATION IN LIFE
BECAUSE FOR THE ONE WHOM YOU CRY
DOES NOT DESERVE YOUR TEARS
AND THE ONE WHO DESERVES
WILL NEVER LET YOU CRY……………..

TREAT EVERYONE WITH POLITENESS
EVEN THOSE WHO ARE RUDE TO YOU,
NOT BECAUSE THEY ARE NOT NICE
BUT BECAUSE YOU ARE NICE…………………..

NEVER SEARCH YOUR HAPPINESS
IN OTHERS
WHICH WILL MAKE YOU
FEEL ALONE,
RATHER SEARCH IT IN YOURSELF
YOU WILL FEEL HAPPY
EVEN IF YOU ARE LEFT ALONE………………….

ALWAYS HAVE
A POSITIVE ATTITUDE IN LIFE.
THERE IS SOMETHING POSITIVE
IN EVERY PERSON.
EVEN A STOPPED WATCH IS RIGHT
TWICE A DAY………………………………

HAPPINESS ALWAYS LOOKS SMALL
WHEN WE HOLD IT IN OUR HANDS.
BUT WHEN WE LEARN TO
SHARE IT,
WE REALIZE HOW BIG AND PRECIOUS IT IS!……………..

 

Life is Short

Filed under: jpeg,life,poems — madhawa.h @ 8:00 am

 

A fish is crying

Filed under: eating fish flesh,fish,sinhala poems — madhawa.h @ 7:57 am

 

Does Love Need a Reason

Filed under: Uncategorized — madhawa.h @ 7:51 am

Some people never understand
Once a lady when having a conversation with her lover, asked:

Lady : Why do you like me..? Why do you love me?
Man : I can t tell the reason.. but I really like you..
Lady :
You can t even tell me the reason… how can you say you like me? How can you say you love me?
Man :
I really don t know the reason, but I can prove that I love U.
Lady :
Proof? No! I want you to tell me the reason. My friend s boyfriend can tell her why he loves her but not you!
Man :
Ok..ok!!! Erm… because you are beautiful,

because your voice is sweet,
because you are caring,

because you are loving,

because you are thoughtful,

because of your smile,

because of your every movements.

The lady felt very satisfied with the man s answer.
Unfortunately, a few days later, the Lady met with an accident and went in comma.
The Guy then placed a letter by her side,

Darling,Because of your sweet voice that I love you…Now can you talk? No! Therefore I cannot love you.
Because of your care and concern that I like you..Now that you cannot show them, therefore I cannot love you.

Because of your smile,because of your every movements that I love you..

Now can you smile? Now can you move?No, therefore I cannot love you…

If love needs a reason, like now,There is no reason for me to love you anymore.

Does love need a reason?

NO!Therefore,
I still LOVE YOU…

True love never dies for it is lust that fades away. Love bonds for a lifetime but lust just pushes away"

 Immature love says: 'I love you because I need you.' Mature love says 'I need you because I love you.'

 

Equipments we have at "THe Department of materials Science and Engineering" March 5, 2008

Filed under: Uncategorized — madhawa.h @ 12:32 pm

Equipments we have at our department

  • Scanning Electron Microscope (SEM)
  • X-ray Defractrometer (XRD) 
  • TG/DTA, TMA, DSC thermal analyzer  
  • IR Spectrophotometer
  • Ultrasonic Flaw Detector
  • Optical Polarizing Microscope
  • Melt flow Indexer 
  • Brookfield Viscometer 
  • Computer controlled Universal Testing Machine 
  • Andreasen Pipette Apparatus 
  • Temperature modulated DSC  
  • Impact Testing Machine
  • Hardness Testing Machines for Rockwell and Vickers Method.


MICROSCOPY

Optical, Polarizing and Scanning Electron Microscopy

POLYMER & CERAMIC ANALYSIS

X – Ray Diffractometer, Infrared Spectrometry, Melt Flow Index, and Abrasion Testing

MECHANICAL TESTING

Hardness testing, Tensile testing, Compressive Strength, high temp. Creep testing, Fatigue testing 

NON-DESTRUCTIVE TESTING
Ultrasonic Testing Dye Penetrate Testing, Eddy Current Testing

FOUNDRY
Salt Spray Tester

CERAMICS
Ball mill, Blunger, Filter press, Pug mill, Gas fired furnace


H.Madhawa Ranga

 

Department of Materials Science and Engineering – University of Moratuwa – Sri Lanka

Filed under: engineering,mateials science,materials,university of moratuwa — madhawa.h @ 11:28 am

University of Moratuwa is the only university in Sri Lanka which conducts a Bsc. Engineering degree program in the field of materials engineering. The students who follow this four year program of studies, which is conducted by the “Department of Materials Science and Engineering“, have the opportunity of specializing in the areas of ceramics, metals and/or polymers.

in addition to its main function of producing materials engineers to the industry, the department’s objectives extend to providing assistance to the Sri Lankan industry in the form of technical advice, research, providing testing facilities, and technical training. The qualified staff in the department of materials engineering as well as the other staff members in the university has the expertise to advice on most of the technical problems encountered by the industry.

Long-term industrial problems are generally studied by the students as final year research projects under the supervision of a senior staff member. There is also provision for those who work in the industry to register for a postgraduate study program such as M.Sc. M.Eng. or M.Phil. by research. The research topic may be selected on an industrial problem encountered by the industry and may be carried out under the supervision of department staff utilizing the facilities available in the department and the industry. This is because, in industry the problems encountered are multifaceted and industry-university liaison is very essential to solve such problems.

A wide range of equipments and facilities are available in the department for teaching and research purposes. Some of the equipments available in the department are Scanning Electron microscope, X-ray Deffractometer, thermal analysis unit, optical microscopes, infra-red spectrometer, mechanical testing equipments.

History of “The Department of Materials Science and Engineering”

The Department of Materials Engineering presently the only academic body in Sri Lanka offering undergraduate studies in materials engineering, began as Department of Materials Science, a division of School of Applied Science, which was established in April 1974 with the assistance of British Government when a link-arrangement referred to as Katubedda-Leeds Link, was forged between the University of Moratuwa & University of Leeds.