| บทคัดย่อโครงการ |
Abstract.
This presentation will cover case studies of two major ground improvement projects undertaken in South East Asia. The case studies will be on ground improvement works for the Changi Airport reclamation project in Singapore and that for a high-speed railway project in Malaysia.
The Changi Land Reclamation Project in the Republic of Singapore involved the reclamation of a total land area of 25 km for a new airport runway, taxiways and associated facilities. This presentation will provide an overview of the land reclamation and ground improvement works at the project (1992 till 2008). The usage of prefabricated vertical drains, field instrumentation, and deep compaction of reclamation sands in this project will be discussed.
Abstract.
Now a days a number of theoretical researches are conducted based on the so-called ab initio methods. Unfortunately most of them are using parameters to fit to the experimental observations, and have no power of prediction. We have been trying to establish a theoretical formulation which has no parameters from experiments. The method is all-electron full-potential mixed-basis ab initio simulation program, TOMBO. By applying TOMBO we can produce reliable database for machine learning for materials informatics. For example, band-bap engineering to predict new LED has been performed using DFT, which is theoretically not applicable to excited states. "Engineering" should be based on the well established theory. We have developed GW approximation with DFT, which is known to be possible to estimate low lying excited states. All materials, from molecules to human body are composed of atoms, which follow the quntum mechanics. Even the fastest supercomputer can not solve the Schrodeinger equation for realistic materials. Many models have been constructed to reduce computation and to easily understand the phemomena. These should satisfy necessary conditions for the manybody problem, such as Virial Theorem. We have proved that Hubbard model etc, two levels models, violate the Virial Theorem and incorrect. Based on our strategy we can change the situation of explanation of experimental data to prediction of new materials; Theory First, which is the standard in elementary particle physics. We can win the game with experimentalists in inaterials research. This work has been supported by HPCI |
