I didn’t know that k0 proposed by Jozsef Jaky (1944) is an analytical result instead of empirical one. In many text books, even including the ** text book, it is presented as an empirical formula.
I doubt that few people actually read the reference from
Jaky, ‘ause it is in Hungarian. This is very similar to the case of Reuss (1809),
which was published in French.
Nowadays, introduction part of most papers, theses or dissertations, is presented in a way of piling up references without reading any of them. The only purpose is probably to flatter the potential reviewers like “see, I cited your work”.
For work with strong innovation, please be confident enough
to refer to “本文不必参考任何文献”（钱伟长，2002）
However, in most cases, the authors 怂ed and cited some references like “土力学教材”、“数理方程课本”,
in order to be published.
In classical ballet, artistic creativity is combined with strict discipline. Bacteriologist Emmanuelle Charpentier knows this all too well. Trained in classical ballet and piano, she says it’s not a bad background to have as a researcher citing this as the source of her meticulous accuracy and persistence through repetitive efforts. And, she adds, a scientist needs to cultivate her/his artistic side, be creative and a little bit crazy — at least sometimes.
Leisure: “I have been very busy with work in recent years and even more as a result of all the attention surrounding CRISPR-Cas9, but I really try to keep up with other interests too, such as sporting activities. I am very much interested in culture, art and design. I can at least find the time to listen to music while working, walking and thinking, and I enjoy listening to debates by philosophers and sociologists that question the world and our society. This is where I find my energy and balance.” Best mode of transport: “Bike! I cycle wherever I am – Paris, New York, Vienna, Umeå, Braunschweig – and currently on a daily basis in Berlin.”
“I was and remain very passionate about the MIMS concept at Umeå University. It focuses on a very high level of education and research, with regard to both high-quality research and insight into how to promote fundamental research and the education of postgraduate students in the long term. The concept also takes into account that good research takes time and requires good working conditions in which a community pools its energy and the administrative burden is small. I appreciate that The Nordic EMBL Partnership for Molecular Medicine gave me the academic freedom I needed.”
These photos remind me my time in Tsinghua. The slogan on the auditorium indicates that these photos must be made many years ago. I love the straight road between the second gate and the west gate with ginkgo trees along both sides. There is a lotus pool beside the road, which is famous because of the article “The Moonlight in the Lotus Pond”. This article was in our text book of middle school in my age, I am not sure if this is still the case now.
Today’s news that Chang’e 5 landed on the moon and planning to
bring a sample of lunar soil back, called to my memory of my time in Tsinghua.
As I remember this Chang’e mission started about 15 years ago, almost the same time that I started in Tsinghua. If you are not a soil mechanics expert, you may not be able to imagine how this mission could be linked to soil mechanics. Actually, at the very beginning of the Chang’e mission, we were involved. The first task was to estimate the response of soil to the reentry capsule when it landed as planned somewhere in Inner Mongolia. (The planned landing spot for Chang’e 5 this time is still in Inner Mongolia.) The second task was to build a test area in Beijing, modelling the soil in Inner Mongolia, so that some experiment could be carried out in Beijing instead of Inner Mongolia. During those time, discussion on lunar soil sampling project already began, it is about 15 years ago. Now, finally, we see this mission carried out.
To model soil that does not exist on the earth is difficult. Our focus is on the mechanical behaviours of soil so that to provide basis for design of sampling machine and lunar vehicle. Some of issues that need to be considered include low gravity (1/6 of earth), vacuum condition and dry condition. The issue of gravity is especially concerned, because it effects confining pressure so that effects the strength. And this issue effects design of some experiments . For example, when design a triaxial test, distribution of confining stress due to the size of soil sample is always neglected, but when the confining stress is very low, this kind of difference due to soil sample size may not be negligible.
