![[PukiWiki]](image/c60.png "[PukiWiki]")
Here is a daily log for Jakob Grzesik from 2017.6.5 to 2017.8.5 in Saito Lab in Tohoku Univ. #contents *Daily schedule (tentative) [#w23992ea] - 09:00-09:30 Begin climbing to campus - 09:30-09:35 Succumb to burning feeling in calves and take a break - 09:35-10:00 Resume climb to lab - 10:00-11:00 Finishing/continuing any work from previous day - 11:00-12:00 Discussion with Shoufie-san - 12:00-13:00 Lunch - 13:00-13:30 Prepare for daily report presentation - 13:30-14:30 Meeting with Saito-sensei - 14:30-18:30 Start working on work for tomorrow's presentation and updating Pukiwiki *Goal of the project [#v6c2b76f] - Synchronization of particle motion *Questions and Answers [#cf2dce22] This section is for posting questions from Haihao-san and answers from other group members. - Please list here with some simple reasons or details. - For every problem, give a tag double asterisks (**) in the code so that it will appear in the table of contents. - For the answer, give a tag triple asterisks (***) in the code below the problem in order to make a proper alignment. - List from new to old. **Q: (Placeholder) [#p895f04e] ***A: (Placeholder) [#q305cf42] *Report [#l307fb28] This part is basically written by Yakub-san. Any other people can add this. Here the information should be from new to old so that we do not need to scroll. **August 5 [#h9a635cd] To do: **August 4 [#d370623d] To do: **August 1-3 [#s77b287e] **July 31 [#k90f3d81] **July 29 [#y8811abb] **July 28 [#c922bf6b] **July 27 [#w6ee8469] **July 26 [#d1b2261b] **July 25 [#uda7e806] To do: **July 24 [#l2d6ba8a] **July 22 [#pbc05874] To do: **July 21 [#gbb2670e] To do: **July 19-20 [#j9ab6ad8] **July 15-18 [#ue289e64] **July 14 [#oae71d85] To do: **July 13 [#kd97c6c6] To do: **July 12 [#y50629bc] **July 11 [#n6035f32] To do: **July 10 [#m4606a45] **July 8 [#z4842272] To do: **July 7 [#k5bd683e] To do: **July 3-6 [#o2ba5fb8] **July 1 [#le5bcf24] **June 30 [#e7852171] To do: **June 29 [#z0c582d9] To do: **June 28 [#g9cdd8df] To do: **June 27 [#kbbb7e86] **June 26 [#z40e08bc] **June 24 [#sc1d1c33] To do: **June 23 [#v7050c05] **June 22 [#t9d0a840] To do: **June 21 [#a66d9fdc] To do: **June 20 [#t023b203] To do: **June 18 [#y0774c6e] **June 17 [#xc697d1e] To do: **June 16 [#n78ac706] To do: **June 15 [#r9bce1de] To do: **June 14 [#a7b2b2af] To do: **June 13 [#x5e79f4d] To do: **June 9 [#cde372e6] **June 8 [#i5309127] - Solved problem for HW and did some more exercises with Lagrangian mechanics and ODEs. - Learned about an example of synchronization phenomenon with Saito-sensei. Involved first getting equations of motion using Lagrangian mechanics, then applying Linear Algebra and differential equations. Ended up with - Worked on deriving Euler-Lagrange equation in systems with non-conservative forces. To do: - Begin learning how to plot equations effectively. JSXGraph looks very promising, but difficult to learn. - Design programs to numerically solve differential equation systems. Start off with Euler's method, than build upon that to do the Runge Kutta method. - Solidify understanding of EL in non-conservative situation to the extent that I can follow and present the derivation. **June 7 [#p0ecbca1] - Walked to campus, took the right path, so it only took about 25 mins to make it to the lab. - Plotted results for last night's HW with varying parameters. - Practiced getting equations of motion for more complicated systems using Lagrangian Mechanics. - Considered systems with damping forces and modelled motion using differential equations. To do: - Apply linear algebra and ODEs to solve a general second order differential equations problem. - Learn how to solve ODEs and linear algebra questions using python(Start with Euler's approximation method). **June 6 [#u2633c67] - Walked to campus, got lost at campus. Took about 45 mins. - Finished working on HW about action and the Euler Lagrange equation - Worked on learning about differential equations. - Worked on applying Lagrangian mechanics to double pendulum. - Had lunch with Nulli-san at Espace Ouvert - First "experiment": synchronization of vegetable can movement within a box due to forces exerted while carrying it and walking at a certain pace. To do: - Solve equations of motion for a box on a spring with some initial external force over a fixed period of time, both before and after external force is removed. - Numerically solve ODEs in Python(perhaps using numpy and scipy packages). **June 5 [#x0e34f61] - Shoufie-san picked me up from Urban Castle Kawauchi, took me to campus by subway (International Center -> Aobayama, 250 yen ~20 mins total) - Nugraha-sensei helped me set up lab server access, mail client, etc. - Got a quick bento lunch on campus and ate with Saito-sensei who played his ukulele - Learned about Lagrangian mechanics, specifically in the context of a simple pendulum. - Learned a bit about the general solutions to second-order differential equations. To do: - Learn what "action" in physics is - Derive the Euler-Lagrange Equation
