Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Tuesday, July 17, 2012

Project Topics for Computer Science Students

One amazing thing about final year projects is that it can boost or mar your overall CGPA. So it's best to endeavor to make your project earn you nothing less than a B. This thread is dedicated to providing tips to assist undergraduates offering the course of computer science in any of our higher institutions of learning.

Getting a Project Topic:

Obviously, this is the first thing that one should think of. But the problem is how to go about it. Many students will search the web, libraries or other sources looking for topics that they could use. Sadly, after a topic might have been found, many students fail to fully understand the purpose for which the project was intended for. They only get to discover this during their project defense when the examining Project Co-coordinator points out this fact to them, but by then, its too late for excuses. The Marks are awarded... and its never an Alpha.

The thing about choosing a project title is that you should know what the title's all about! Only then can you begin to carry out research on it in the right dirction! Choose a title that is clear to you, that you understand. If its too Abstract for you, forgo it and look for one you can explain in your sleep to your curious younger brother when woken up at 1:00 am at night.

Choosing the best topic for your Project Defense: Okay, so you've picked a topic. You understand its aims and objectives intuitively. Is there any thing else that you need to know that can help you decide if the topic you have chosen is the best one for you?

Here's a tip.

Choose a topic that will solve something in your immediate environment. That way you will get more marks as you are targeting real-life issues in your society and you it will be viewed that you are using the knowledge gained from your soon-to-concluded-education to contribute to the developmental uplifting of your immediate environment.

Try not to choose a topic like:

"An Adaptive Programming Model for Fault-Tolerant Distributed Computing"

It may sound good and all but does it solve the immediate problems experience in a developing third world country like ours? Most of the topics that we gather online come from sources which belong to the developed world. The developed Nations have overcome the issues of constant electricity, cheap and affordable internet services and a conducive environment for living. So the type of project that their students will be solving will be research topics to discover new ways and algorithms for solving already existing solved problems like the one in the topic I gave above: Already there are many Adaptive Programming Models in existence but this project seeks to create one that will over come the problems associated with the already existing models. This project will be of use to the environment of the Developed World, since almost every aspect of their society is based on the computer, hence it makes sense to create models that will make them more fault tolerant so that they can function more efficiently. In many developing Nations like ours, where not even 2% of our society is based on the workings of the computer, of what real use will such a topic have for us? Why seek to improve a model that is not even in operation in our immediate environment? We have to think of this when choosing topics for our Final Year Projects.

Now consider this topic:

'Online NAFDAC Registration and Verification Solution"

Ever bought a drug and discovered that it did not work for you? Yet if you checked for the NAFDAC registration number you would see one. How can you be sure that the number wasn't just printed on the drug's container and is a fake one? Is there any way you can be sure that the NAFDAC registration number you see is real? How can you verify that claim? Is there an easily accessible medium by which ordinary members of the public like you and I can check to see if a drug has been registered without going through tedious bureaucratic procedures? If the drug cannot be verified is there a way we can report the fake drug to NAFDAC?

Looking at the above, we can clearly see that we have a problem predominant in our society that has yet to be solved. Why go perfecting algorithms and models when your people are in danger of consuming fake drugs-an issue that you can tackle with your acquired knowledge of computer science?

Now if you were a Nigerian Computer Science Professor and two students came up with their project titles, one the Model Improvement Title and the other, the NAFDAC Verification Title, which of the two titles would you believe if implemented would aid the Nigerian society more? Your guess is as good as mine!

Need to find similar topics relevant to our environment like the one above? Check Here


View the original article here

Saturday, July 7, 2012

The Science Behind 3D Printing

3D printing is pretty interesting in my opinion; it's going to lead to a change in the way that we do things in a wide variety of industries. First off, what is 3D printing? 3D printing is a fascinating form of manufacturing technology in which almost any shape can be created out of a wide variety of materials. These materials range anywhere from ABS plastic, ceramics, glass filled nylon, rubber like material, wax casts, stainless steel, Inconel, cobalt chrome, silver, platinum, and even gold. There are tons of materials to choose from! In fact, over 60 materials exist in the world of 3D printing. Anyways, let's jump back to the actual process of 3D printing. For this process to work, a design has to be created before anything can happen. This design will be the blueprint for the actual product itself. Various softwares can be used to create these computer files. Just a few to think about would be 3DS Max, Maya, Blender, Autodesk products, and Tinkercad. There are definitely other softwares that work in this 3D printing process.

Regardless, a design will be created from one of various softwares. This design will then be sent to a technician, or the operator that runs the 3D printer itself. This design will be plugged into the computer of the 3D printer, and it will manufacture the product in accordance to the design. Keep in mind, the technician will also have to choose the correct machine, lay out the files, and start the printer. Other than that, the printing process is pretty automated.

When the process starts, dependent on the style of 3D printing, a layer by layer process will begin. The printer will begin laying down layers of material to create the design. These layers of material can sometimes be a fraction of the diameter of a human hair. As in less than 20 microns! That's a fraction of a millimeter! The detail levels can go very high in a variety of situations. Back to the actual process. The machine will take into account the dimensions and schematics of the design previously created, and it will bring it into existence, one layer at a time. Various processes involve shooting ultraviolet lights at liquid resins, laser melting powder, adhesive sprays on powder, and FDM printing. FDM printing is probably the most popular. This process involves shooting strands of plastic through a heated extruder. Think of a hot glue gun shooting out glue, where the hot part is the extruder, and the glue consists of various materials. The 3D printer will use a computer aided manufacturing (CAM) system to create products. This means that the computer within the machine will tell the extruder exactly where to go, and where to melt material.

This process will continue layer by layer until a final product emerges. Dependent on the style, there are some post production requirements in which the technician will have to clean the model. Some styles of 3D printing call for the technician to dust off excess powder, dip the piece into strong bonding chemicals like epoxy, or add various finishes. Well, basically, that's the 3D printing process!

If you enjoyed this article, you might what else is new with 3D Printing, or possibly you'd like to join a 3D Printing Community,


View the original article here