Saturday, 3 November 2012

Bioelectronic Talk

For the fifth class, we had a talk about Bioelectronic delivered by Dr. Azran. He’s doing PhD about Sonication Decellularization. He has been in Japan almost 15 years since he was in Diploma.

Firstly, Dr. Azran taught us about block diagram in Control System and some kind of electric circuit. Oh maybe I as a ex-Diploma student can recall a bit what I’ve learned before when I was in Diploma.




Example of Control System's block diagram




Example of electric circuit (OP Amp)


After that, he told us about his research about Sonication Decellularize. Actually this research is all about cell. He trying to find out how human cell could be regenerate to a new cell such as your skin has a cut, a wound or something like that. 


                                             


The aim of the study is to investigate the sonication decellularization efficiency and its relation with ultrasonic power output and dissolved oxygen (DO) concentration in different detergent solution. In the study, He used aorta samples to evaluate sonication decellularization efficiency, which assessed treatment duration, sonication power and SDS detergent with/without saline. The treated samples were evaluated histologically by Hematoxylin Eosin (HE) staining and scanning electron microscopic (SEM) photographs. The concentration of DO was monitored to identify the effect of sonication on cavitation-related DO concentration in the solution. From histological results, the sonication decellularization efficiency was better than the other preparation methods. Decellularization efficiency was tended to increase significantly when DO value decreasing after 6 hours of treatment. In conclusion, he conclude that sonication treatment can be used to prepare the complete decellularized scaffolds in short treatment time.




He actually has done to do his research that’s why he came to MJIIT to present his research to us because he wanted to expose us about Bioelectronic. Bioelectronic is one of SMJE elective course instead of Automation Electronic and Embended Electronic.




The best part of his speech was, I was interested about something in his speech which is about human DNA. Actually, we as a human being have a lot of similarities until you found the differentiation 0.1 percent of DNA cell. That 0.1 percent will differentiate you and other people and same, as your family.

He also told us about the winner of Nobel Prize 2012, who is Shinya Yamanaka because of his research about his discovery that mature cells can be reprogrammed to become Pluripotent.



Shinya Yamanaka

Born : 1962, Osaka, Japan
Affiliation at the time of the award : Kyoto University, Kyoto, Japan, Gladstone Institutes, San Francisco, CA, USA
Prize motivation : "for the discovery that mature cells can be reprogrammed to become pluripotent"

Then after that, you Mr. Kamal gave us a new assignment that we have to do a poster about Software Engeineering. When he gave us what we have todo, I was like ‘wow’ because it will be my new expererience to do assignment in poster. Me and groupmate will try our best to make sure this assignment succeed.

Thursday, 25 October 2012

5th Class.

And this week we learned about Ultiboard. En. Redzuan taught us about it and after that we have to take a test.


Actually Ultiboard is an electronic Printed Cicuit Board  Layout program which is part of a suiteof circuit design programs, along with Multisim.

Rapidly prototype printed circuit boards (PCBs) with Ultiboard. The flexible Ultiboard design environment accelerates design with automated functionality while maintaining precision with manual control. You can export to industry standard formats like Gerber and DXF. In addition, complete integration to NI Multisim allows for comprehensive design annotation and access to advanced circuit simulation technology. Ultiboard benefits include the following :

1.Flexible environment optimized for rapid design and accurate part or copper placement
2.Engineer-friendly interface for laying out and routing PCBs
3.Seamless integration with Multisim to ensure accurate transfer of simulated designs
4.Comprehensive database of connector footprints for custom designing NI hardware and test platforms
5.Easy export to industry-standard Gerber or DXF formats for prototyping and fabrication

The reasons why we have to learn about Ultiboard are :

1. Faster Simulation and Prototyping with the NI Circuit Design Suite
2. Simulation and Prototyping with the NI Circuit Design Suite
3. Easier Custom Design for NI Hardware with Ultiboard Power Pro
4. Academic Design with Ultiboard Education Edition

In this lesson, we have to know how to proceed step by step to make sure our project will be working.

First step : PCB Design Fundamentals ( Take it from Multisim )

Example

Second step :  Customizing the Board Outline.


Example

Third step : Part Placement


Example

Fourth step : Routing



Example

Fifth step : Finalizing a Design for Fabrication


Example

Sixth step : Exporting Gerbers


Example

The final touch :  3 Demension ( 3D )


Friday, 5 October 2012

4th Class.

Before we went through our lessons, Dr Kamal gave marks for feedbacks from the blog we did before. I got only 17 marks ! Too low man. Wake up call wake up call. 


For 4th class, mr. Redzuan introduced us about Mulitisims. This kind of software used to design some electric circuits before we proceed to the next level.

Actually Multisims is the software that easier for you to design electric circuits, I mean we took it from hardcopy (in papers) transfered to softcopy. We use Multisims version 10.






This example i took from our last lessons.



Thursday, 4 October 2012

3rd Class.

For this class, we have discussed about Resistors.



Resistor has no polarities. There are 3 ways how to know power of the resistor which are colour code, printed code and by using multimeter.

1 - Colour Code.


2 - Printed Code.


3 - Multimeter.



Friday, 28 September 2012

2nd Class

We've been discussing about dividing all students with 2 groups which are group 1 and group 2. Mr. redzuan has been decided that group 1 will be attend at 8 AM and group 2 at 10 AM for next week,. This timetable will be exchanged in rotation. Former diploma students have been given privilege to choose which group we want to join. So I've decided to be in group 2.

1st Class

Second Intake.

Harap maaf, kehadiran saya tidak wujud lagi pada ketika ini kerana saya adalah mahasiswa dari kemasukan yang kedua -,-