Journal of My Life : 3집 이야기 (3rd Vol. Story)

Hello again everyone ! Woow.. Today is very hot and also very tiring. I have a little time between my busy schedule to tell a story to all of you.

Now, I will tell you a story about Reliability. Today, I have a lecture about statistic engineering and reliability. My lecturer said that if we talk about reliability, we can't separate it with a system. Why ? Because system's reliability is what we talk about. But, maybe some of us don't know what system is. System is a set of component / attribute which is ordered to do specific function.

We also talk about success. There are two kinds of success. Success in technical and success in business. Chance of technical success is reliability.

Reliability of the system (like a structure, car, bike, etc.) will be weaken as time goes. But, with Repair and Maintenance, reliability can be maintained even not 100% as the new one. And the system must have maintainability character which means the system has a maintenance period and repairing period as short as possible. So the availability of the system can be guaranteed.

Okay, this is my story about reliability. Do you confuse with the story ? Me too, you are not alone. Hahahaa =)) But don't worry ! If I have an easy story to tell, I will tell it to you. It's time to back to my busy schedule. See you everyone ! =)

Journal of My Life : 2집 이야기 (2nd Vol. Story)

안녕하세요, 여러분 ! Hello everyone !

Today is a busy day. Even busier than yesterday. But alhamdulillah everything is okay. Now, I will tell you a story about FEM (Finite Element Method) and the softwares.

Finite Element Method is one of numerical technique to solve an complex equation which (almost) impossible to solve it with analytical technique. It can used to solve structural analysis, Dynamic or Motion analysis, fluid flow, fluid-structure interaction, etc. There are many softwares which use FEM as their processes. But, the core is only 2. They are general purpose and specific purpose softwares.

General purpose softwares are softwares which can solve any application of FEM like structure stresses, car deforms, etc. Of course general purpose softwares are more expensive than specific purpose softwares because of their versatility. The examples of these softwares is ANSYS, NASTRAN, SAP, etc.

Specific purpose softwares are softwares which can solve only specific application or problem of FEM. Generally, we can build our own program with FORTRAN, Turbo Pascal, or Visual Basic to solve FEM problem. Because of their simple process, this softwares is cheaper than general purpose softwares.

Okay, this is my story about FEM and its softwares. Because tomorrow will be a busy day too. I must take a rest soon and prepare for tomorrow. See you everyone ! 안녕히계세요 !

Journal of My Life : 1집 이야기 (1st Vol. Story)

Hello Hello Hello ! 안녕하세요, 친구들 !

In this first day of lecture, Suddenly, I got a task from my lecturer to find a journal and I have to analyze it and give both comments and summary. But, How to analyze it ? Okay, I will tell you. Please be patient.

Okay, the task is about "Using Descriptive Statistic". So, what's descriptive statistic ? Referring to all source which I read before, descriptive statistic is methods which related to collecting and presenting some data so that data can give important informations to readers. Descriptive statistic only give data's informations without giving any conclusions about the data's parent. With descriptive statistic, we can get informations such as mean, median, modus, deviation, etc.

Now, we know what's the meaning of "Descriptive Statistic". So, let me do the task now and I will tell you other things about what I'm studying. 파이팅 !

See You ! 안녕히계세요 !