Ke Wang

A high-throughput strategy converts elemental powders into Ag ₂ Se thermoelectric alloys and devices within a minute, achieving a high power factor of 2.35 mW m ⁻¹ K ⁻² and a peak zT of 1.1, offering a scalable pathway for thermoelectric manufacturing.

Optimized via machine learning, extrusion printed thermoelectric materials (BiSbTe) achieve an ultrahigh zT of 1.3 at room temperature.

This work demonstrates a remarkable room-temperature figure of merit zT of 1.3 for BiSbTe-based composites with excellent reproducibility using a scalable, low-cost ink processing technique.

Although photography was introduced to China relatively late, the speed of its development is by no means inferior to that of any other country. Under the influence of photography, China has also given birth to a large number of masters of documentary photography who record the current state of life. Documentary people photography can portray people and people, people and living environment realistically. Under the background of today's social development, part of the precious culture and traditional way of life in rural areas are quietly disappearing. For this reason, a representative rural area in Shandong Province is selected for video recording and analysis, exploring how the choice of shooting environment and the use of light can be more conducive to the presentation of people's images. Comparison and analysis with masters' works will be made to improve the practical application of people's image shooting techniques. To convey the concept of caring for the elderly by analyzing the images.

Ke Wang, Xin Ge, Jiayi Wang, Yuqi Zhang, Yu Zhao. Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2023.

To achieve highly dynamic jumps of legged robots, it is essential to control the rotational dynamics of the robot. In this paper, we aim to improve the jumping performance by proposing a unified model for planning highly dynamic jumps that can approximately model the centroidal inertia. This model abstracts the robot as a single rigid body for the base and point masses for the legs. The model is called the Lump Leg Single Rigid Body Model (LL-SRBM) and can be used to plan motions for both bipedal and quadrupedal robots. By taking the effects of leg dynamics into account, LL-SRBM provides a computationally efficient way for the motion planner to change the centroidal inertia of the robot with various leg configurations. Concurrently, we propose a novel contact detection method by using the norm of the average spatial velocity. After the contact is detected, the controller is switched to force control to achieve a soft landing. Twisting jump and forward jump experiments on the bipedal robot SLIDER and quadrupedal robot ANYmal demonstrate the improved jump performance by actively changing the centroidal inertia. These experiments also show the generalization and the robustness of the integrated planning and control framework.

Both data-driven clinical decision support system (CDSS) and patient similarity are important topics in healthcare informatics to facilitate precision medicine. However, approaches to combine both are less studied. In this study, we proposed a framework of data-driven CDSS for patient similarity and presented a case study describing a prototype system for acute coronary syndrome patients.