Category Archives: Just a Note

Terkadang malas mencatat, tapi mau mengetik, dan sebaliknya. juga terkadang malas dua-duanya. :p

Compile a Fortran Code


Again, I blog about “how-to” thingie. Not to teach anyone, but I need to find such notes easily. I post this notes, as when i started doing my assignment which included coding and compiling, i forgot how to compile a … Continue reading

Posted in Engineering, Just a Note, Numerical Method | Tagged , , | 1 Comment

Reservoir Operation Simulation (01)


As tomorrow we’ll have an exam in Water Resource Management class, i’d like to write about a simple reservoir simulation. Basically, in designing a reservoir operating rule, we can do two types of steps: (1) Simulation, and (2) Optimization. Simulation … Continue reading

Posted in Engineering, Excel, Just a Note, Software | Tagged , | 4 Comments

Shield Diagram


  File pdf : Quiz 1. 2012_01_03 *posted as supporting graphics for open channel hydraulics (03 January 2012)

Posted in Engineering, Just a Note | Tagged , | 7 Comments

Hidrograf Satuan (Unit Hydrograph) dari Data Terukur


iseng2, mari kita catat tentang Metode Polinomial dan Metode Collins di sini. Beberapa cara menentukan hidrograf satuan (Unit Hydrograph) dari data terukur, diantaranya adalah dengan Metode Polinomial, dan Metode Collins. Tentu saja masih dengan mengingat asumsi & teori hidrograf satuan. … Continue reading

Posted in Engineering, Excel, Hydrology, Just a Note, Software | Tagged , , | 12 Comments

Rankine Half Body


Example of Rankine Half Body Solution. *I’ll edit this post later.. Contoh Rankine Half Body *Grafik menyusul gan 😉 Thanks

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Doublet (Source & Sink ) : (1)


untuk penyelesaian persoalan doublet (gabungan dari source dan sink), dilakukan perhitungan superposisi terhadap keduanya, di suatu titik P (x,y). Untuk menyelesaikan ini, let’s back to our math, misalnya: turunan cos x = – sin x turunan Ln (x) = 1/x … Continue reading

Posted in Engineering, Just a Note | Tagged , , | 1 Comment

ummm… i think i did it wrong… @_@


Hummm… This morning, just few seconds before i woke up, i remember about my exam. The Numerical Method Exam, which should be my favourite subject ever.aaaiih,,, forget it forget it forget it forget it… [mantra spell :-D] -.- i think … Continue reading

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Numerical Simulation of Flow and Local Scour around Srandakan Bridge Piers


Abstract Riverbed degradation in Progo River had caused the failure of Srandakan Bridge I, which is located in Bantul Regency, Yogyakarta Special Province, in April 2000. Simulations were performed to simulate the supercritical flow in one-dimensional model. As the velocity … Continue reading

Posted in Engineering, Just a Note, SMS, Software | Tagged , , , , | 2 Comments

miss this….!! :D


So… I did my undergraduate final thesis using SMS (Surface Water Modelling System) Software. Not using the famous RMA2, i used the FESWMS module. Why….??? i choose the module because of two reason. First, because i wanted to simulate a … Continue reading

Posted in Engineering, Just a Note, SMS, Software, WMS | Tagged , , , | 4 Comments

standard deviation and standard error


okey.. “Standard error itu apa?” pertanyaan ini muncul ketika membahas statistik deskriptive hasil pengolahan otomatis dari excel melalui Data Analyst add-on nya. Mulailah googling, as usual, dan terpilihlah penjelasan favorit versi saya:

Posted in Engineering, Just a Note, Statistic | Tagged , , | 1 Comment