Here, you can find “HOSIS” a seismic isolator with a utility patent from China National Administration of Intellectual Property (CNIPA), “MetaClimber,” a project applying AI to competitive climbing to help beginners refine technique, “Under the Microscope,” a microscopy photography collage, a filmed interview with a postdoctorate research fellow at LAMOST (an astronomical observatory) on the birth and death of stars, chemistry demos, and my beginning explorations into astronomy as a little girl…

Through BubbleLAB, I aspire to inspire more teens to engage in self-exploration. Poiesis is, to me, the greatest euphoria of science; but who knows? Maybe that thought will change with the next project too.

Welcome to                              !

The birth of the universe

Integration begins with separation

The birth of the universe

Breed

Horizontal Omnidirectional Seismic Isolation System
(HOSIS): Proposal of a New Method of Seismic Isolation
Using Rolling-Type Sliding mechanism and Air Ring Dampers

Invention patent number: 202210316208.9

Abstract: In this paper, we propose a horizontal omnidirectional isolation system (HOSIS) which has a higher isolation capacity and vertical tensile capacity than the laminated rubber isolator currently in use for seismic isolation. The design consists of a horizontal omnidirectional isolator, which allow for the isolation of horizontal seismic waves by realizing free rolling and slip, jointly applied with a vertical tensile isolator, which support load. We begin by presenting five designs of the horizontal omnidirectional isolator: HOSIS-I, HOSIS-M, HOSIS-C, HOSIS-S, HOSIS-AVSD. HOSIS-I, M, and C differ in the placement of rolling balls, allowing for different capacities of shock isolation; HOSIS-S is a simplified design aimed for rural application with marked reductions in volume and cost, and HOSIS-AVSD inserts an anti-stretch
device to prevent pull during times without seismic response.

Each variation is complemented by a mechanical model, material optimizations, and a design scheme with consideration to physical parameters. The design for the vertical tension device is detailed in the subsequent sections, and the joint application of the two components in engineering practice is brought forward for future experimentation. The five variations which allow for varying degrees in isolation capacity make the system suitable to be applied to buildings of all dimensions. Its characteristics of low-cost, easy construction and maintenance, and long service life allow for ready popularization in infrastructure in both urban and rural environments. Finally, this paper concludes that HOSIS offers significant advantages over the classical methods of seismic isolation and suggests the development of this technology as a fruitful direction for future research.

Shuonan Yu,  Lei Yu

December 2021

我是段落。点击这儿添加你的文字并编辑它，非常容易。-双击进行编辑

我是段落。点击这儿添加你的文字并编辑它，非常容易。-双击进行编辑

Follow Shuonan(Bubble) to visit the National Astronomical Observatory of the Chinese Academy of Sciences. 

Go into LAMOST to explore the origins of stars and the universe.

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) is a special quasi-meridian reflecting Schmidt telescope located in Xinglong Station of national Astronomical Observatory, China. LAMOST optical system consists of a reflecting Schmidt Ma at the northern end, a spherical primary mirror Mb at the southern end and a focal surface in between. Mb has a size of 6.67m×6.05m, which consists of 37 hexagonal spherical sub-mirrors, each of them having a diagonal diameter of 1.1m and a thickness of 75mm. Ma is 5.72m×4.40m, which consists of 24 hexagonal plane sub-mirrors, each of them having a diagonal diameter of 1.1m and a thickness of 25 mm. Both the primary mirror and the focal surface are fixed on their ground bases, and the reflecting corrector tracks the motion of celestial objects. Hence, the celestial objects are observed around their meridian passages. The light collected is reflected from Ma to Mb, again reflected by Mb and forms image of the observed sky on the focal surface. The light of individual objects is fed into the front ends of optical fibers accurately positioned on the focal surface, and then transferred into the spectrographs fixed in the room underneath, to be dispersed into spectra and recorded on the CCD detectors, respectively and simultaneously. The overall concept and key technical innovations makes it a unique astronomical instrument in combining a large aperture with a wide field of view. The available large focal surface accommodates up to 4000 fibers, by which the collected light of distant and faint celestial objects down to 20.5 magnitudes is fed into the spectrographs, promising a very high spectrum acquiring rate of several ten-thousands of spectra per night.

At COOLSCIENCE,

I want to show all kinds of super cool scientific experiments I have in BubbleLAB! 

Investigation of the Habitability of Mars in Specific to
Surface Temperature and Hydrogen Escape

Shuonan Yu

May 2021

Abstract: This investigation attempts to examine the habitability of Mars should scientists consider landing a settlement on Mars in 2033. As living conditions on a planet are contingent on the geology and resources available, many factors play an integral role in determining whether Mars can be a “second home” to the human race. In the scope of this investigation, Mars’ habitability is examined against two criteria: the surface temperature of Mars and the rate of hydrogen escape. To accomplish this goal, this paper is structured into four sections: first, a descriptive synthesis of  existing research into planetary habitability is performed to discover all criteria which make a planet habitable.

Second, the equation of Mars’ orbit is computed to locate Mars’ apoastron and periastron. Third, the surface temperature of Mars at each apsis is calculated to provide a range in which this temperature varies per orbit. The maximum rate of hydrogen escape is also calculated to predict the number of years left before the depletion of all atmospheric hydrogen. At last, these results are assessed against the habitability criteria to conclude that Mars offers a habitable environment in the short-term, but it may not be a suitable candidate for a long-term human settlement such as the one planned in 2033 due to the exposure to HZE-charged particles and predicted depletion of atmospheric hydrogen after 383.72 years. 

我是段落。点击这儿添加你的文字并编辑它，非常容易。-双击进行编辑

MetaCLIMBER

Research on evaluation and optimization of rock climbing movements based on AI and deep learning

and the creation of climbing meta-universe

Shuonan Yu

September 2022

Kick-off: Since entering the 2020 Tokyo Olympic Games, sport climbing, known as "ballet on the wall", has developed at an unprecedented speed all over the world. According to statistics, more than 10 million new climbers have entered climbing gyms around the world in 2021. But at the same time, the total number of qualified climbing coaches worldwide is no more than 10,000, and they are mainly distributed in countries with advanced climbing technology, such as Japan, the United States and European countries. in addition, the novel coronavirus pandemic since 2020 has seriously restricted the international exchange of coaches. It is precisely because of these increasingly prominent problems of lack of coaches, uneven distribution and reduced communication that many new climbers are unable to get immediate and correct climbing learning guidance, resulting in high incidence of sports injuries, slow progress and even loss of enthusiasm.

After studying in Japan in 2020, I began to systematically and deeply study the advanced Japanese climbing theory and movement techniques, and applied its training system to my daily climbing training in Japan. In early 2022, combined with my 7 years' experience in climbing learning, training, competition, climbing trend research and international exchange of climbing culture, I studied and put forward a set of rock climbing self-training methods, I hope this set of methods will become a self-training guide for climbers to improve their climbing level efficiently, systematically and continuously.

In July 2022, I returned to China to compete in the sport climbing finals of the Shandong Games. In in-depth communication with Chinese climbers, I found that there is an urgent need for some kinds of self-training tool which can consult immediately, quantitatively evaluate and intuitively provide advice on movement optimization to climbers.

Is it possible to form a digital model and algorithm of the climbing self-training system using AI and deep learning to create a meta-universe of climbers?

Is it possible to use climber's smartphone to link between real and virtual climbing? Is it possible that the system automatically generates a meta-coach for climbers while the climbers have their own virtual characters in meta-universe?

Through the smartphone screen, is it possible to intuitively present to the real-world climbers the process of meta-coaches guiding their own climbing in the meta-universe, so as to enable the meta-coaches to guide real climbers instantly, quantitatively and intuitively?

With this whim, I visited and consulted experts in the fields of AI, deep learning and image recognition, and began to form a team to lead and carry out this interdisciplinary innovation project: the research on evaluation and optimization of rock climbing movements based on AI and deep learning and the creation of climbing meta-universe. I named this innovative project: MetaCLIMBER.

The above videos is a set of MetaCLIMBER Demo Run currently developed. It shows meta-climber and meta-coach automatically identified and generated by the system using AI and deep learning, digital models and algorithms based on "rock climbing, from beginner to proficiency".

My team and I repeatedly climbed the route and fed hundreds of climbing videos to the system to train the MetaCLIMBER. After training and deep learning, the system automatically generates the movements sequence of the meta-coach on the movements sequence of the meta-climber, and displays the automatically synthesized video to the climber immediately through MetaCLIMBER APP.

Climber plays the video to visually compare the position, posture, body center of gravity, force sequence, and the spatial

relationship with the wall between the meta-climber and the meta-coach, so as to quickly find the problem of his own climbing and determine how to improve the movements.

The outline of the meta-climber is blue, and 17 green dots mark the center of gravity of the body and the main joints related to rock climbing. The outline of the meta-coach is white, and 17 red dots mark the center of gravity of the body and the main joints related to rock climbing.

The five interfaces from left to right are the five interfaces of the MetaCLIMBER APP in smartphone, which are different from the climbers' personalized settings in the MetaCLIMBER APP according to their own needs.

My team and I will update and upload the new Demo Run dynamically according to the latest progress of the project.

Explore

Engineering Innovation

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