Giyoung is the most beautiful woman in the world as you can see from the picture.
I am sure you will agree with me without any hesitation. She is a
Ardenwood Pet Hospital.
Obviously, she loves animal. Her favorite animal inlcudes cows, shih tzu, and goats.
Currently, she plays a role of bodyguard for Lang at home.
As you can guess from the fact that she loves animal, she has very warm sweet heart like chocolate.
I love her so much and am thankful to God who gave her as my wife to me.
Grace is an adorable and strong kid. She grows fast, which keeps reminding me of wonders of life and importance of time.
In the evening, coming back from school, I enjoy watching her playing:
dancing, clapping, calling mom and dad, walking, smiling, playing soccer, crying, and staring back at me of course.
She brings joy and love, which I cannot afford with any amount of money, to me.
She has her own
Youngsoo Choi, Charbel Farhat, Walter Murray, and Michael Saunders. A practical factorization of a Schur complement for PDE-constrained distributed optimal control. SIAM Journal on Scientific Computing. submitted in July 2013.
Papers in Preparation
Youngsoo Choi, Philip Avery, Walter Murray, and Charbel Farhat. A SAND method with the generalized alpha method for nonlinear dynamic PDE-constrained optimization problems. International Journal for Numerical Methods in Engineering.
Youngsoo Choi, Walter Murray, and Michael Saunders. Novel preconditioners for a small regularization in PDE-constrained optimal control problems. Numerical Linear Algebra with Applications.
Teaching assistant for numerical optimization
in Winter 2011-2012.
Teaching assistant for numerical linear algebra (CME302) in Fall 2008-2009.
With Prof. Farhat (January 2013 through Current)
I am currently working with Prof. Farhat in AA department of Stanford University.
We are developing an efficient solver for PDE-constrained optimization problems with reduced order model.
With Prof. Murray (January 2010 through December 2012)
I worked with Prof. Murray for my Ph.D. degree.
We developed an efficient numerical optimization algorithm that fits well for PDE-constrained problems.
PDE-constrained optimization occurs in many engineering fields,
such as shape optimization of flight wing to minimize drag or maximize lift,
flow control problems, parameter identification problems, and many more optimal control problems.
We closely worked with Prof. Farhat's group and used structural PDE code, AERO-S.
With Prof. Wein (June 2009 through January 2010)
I was lucky to have chance to do research with Prof. Wein and published a
in journal. This paper has been selected as one of the 2010 Best Papers for Risk Analysis.
This project was mainly to build a model under the virtual senario
(terrorist attacks Washington D.C. with nuclear bomb and Goverment has limited policy to control evacuee).
I solved the Partial Differentail Equation (PDE) model for evacuee through car and algebraic equations for pedestrains.
Also, I estimated the number of death and injury due to the effects of nuclear bomb.
We strongly hope that there will be no nuclear attack anywhere in the world.
However, if there is one, we hope that this paper will paly a major role in Goverment's decision making and save more people.
Also hope that the paper can be a base for a future related research.
News articles about this paper can be found as they follow:
With Prof. Aquino (May 2005 through May 2007)
When I was an undergraduate student in Cornell University,
I had a fruitful research experience to work with Prof. Wilkins.
He introduced a new world of research to a boy of country style,
especially numerical methods of solving a mathematical problem.
For the conference paper listed above,
I created a finite element mesh for a human artery immersed in fluid.
"If you are not allowed to laugh in heaven I don't want to go there" (Martin Luther, 1483-1546).
"God ... will not judge us as if we had no difficulties to overcome. What matters is the sincerity and perseverance of our will to overcome them" (C.S. Lewis).
"Use everything as if it belonged to God. It does. We are his stewards" (unknown).
"The only thing we learn from history is that we don't learn from history" (Friedrich Hegel, 1770-1831).
"God's plan for us is not immunity from struggle, but victory through struggle. In this victory we must appropriate what God has already established" (Adrian Rogers, 1931-2005).
"The strongest argument for Christianity is Christians, when they are drawing life from God. The strongest argument against Christianity? Also Christians, when they become exclusive, self-righteous, and complacent" (Sheldon Vanauken, 1914-1996).
"Honesty is not pretending we are better than we are, but acknowledging the truth about what we are" (John Stott, 1921–2011).
"Faith means we need to let God initiate by command and promise. Too often we want to take over, rather than having a trusting readiness to let God work his will. Then the trouble starts" (Eugene Peterson, born November 6, 1932).
"Victorious Lord, help me to realize that because I am in You, the battle has already been won. I am not struggling in my life for victory, but from victory."
"Lord, You died that I might live. You suffered that I might be made whole. You shed Your blood that I might be cleansed from sin. Hallelujah, what a Savior!"