http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Ambisonic Rendering for Diffuse Sound Field Simulations based on Geometrical Acoustics
Pilsun Eu(유필선),Franz Zotter,Jae-hyoun Yoo(유재현),Jung-Woo Choi(최정우) 한국방송·미디어공학회 2022 한국방송공학회 학술발표대회 논문집 Vol.2022 No.11
The diffuse sound field plays a crucial role in the perceptual quality of the auralization of virtual scenes. Diffuse Rain is a geometrical scattering model which enables the simulation of diffuse fields that is compatible with acoustic ray tracing, but is often computationally expensive. We develop a novel method that can reduce this cost by rendering the large number of Diffuse Rain data in Ambisonics format. The proposed method is evaluated in a shoebox scene simulation run on MATLAB, in reference to a more faithful method of rendering the Diffuse Rain data ray-by-ray. The EDC and IACC of the binaural output show that the simulated diffuse field can be rendered in Ambisonics with only minimal deviations in energy decay and spatial quality, even with 1<SUP>st</SUP>-order Ambisonics.
Controlling spin-orbit coupling strength of bulk transition metal dichalcogenide semiconductors
이영훈,Eu Pilsun,임창영,차재훈,김성헌,Denlinger Jonathan D.,김영관 한국물리학회 2021 Current Applied Physics Vol.30 No.-
Transition metal dichalcogenide (TMD) semiconductors are attracting much attention in research regarding device physics based on their unique properties that can be utilized in spintronics and valleytronics. Although current studies concentrate on the monolayer form due to the explicitly broken inversion symmetry and the direct band gap, bulk materials also hold the capability of carrying spin and valley current. In this study, we report the methodology to continuously control the spin-orbit coupling (SOC) strength of bulk TMDs Mo1-xWxSe2 by changing the atomic ratio between Mo and W. The results show the size of band splitting at the K valley the measure of the coupling strength is linearly proportional to the atomic ratio of Mo and W. Our results thus demonstrate how to precisely tune the SOC coupling strength, and the collected information of which can serve as a reference for future applications of bulk TMDs.