Search

Your search keyword '"Yang, Kai-Jie"' showing total 43 results
Start Over Author "Yang, Kai-Jie"
43 results on '"Yang, Kai-Jie"'

1. Role of Crown in Tree Resistance Against High Winds

Author

Li, Hsin-Huei, Cheng, Yu-Chuan, Yang, Kai-Jie, Chu, Chia-Ren, and Hong, Tzay-Ming

Subjects
Physics - Fluid Dynamics, Physics - Classical Physics
Abstract

Rather than using wooden sticks to simulate the breakage of trees in high winds as in most research, we employed fresh samples with branches and leaves to certify the crucial role played by the tree crown. By using the blowdown wind tunnel with a maximum wind speed of 60 m/s, we purposely reduce the number of leaves and show that the drag force will drop by as much as two thirds when half pruned. Based on real observations, we model the leaf by an open and full cone in the presence of light and strong wind, and calculate how their corresponding cross-sectional area and drag force vary with wind speed. Different power-law relations are predicted and confirmed by experiments for these properties before and after the formation of a full cone. Compared to the empirical value of 1/3 and 3/4, our simple model gave 2/5 and 2/3 for the power-law exponent of cross-sectional area at low and high winds. Discrepancy can be accounted for by including further details, such as the reorientation of open cones and the movement of branches., Comment: 6 pages, 7 figures

Published
2021
Full Text
View/download PDF

2. Lattice symmetry assisted second order topological superconductors and Majorana patterns

Author

Pan, Xiao-Hong, Yang, Kai-Jie, Chen, Li, Xu, Gang, Liu, Chao-Xing, and Liu, Xin

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Superconductivity
Abstract

We propose a realization of the lattice symmetry assisted second order topological superconductors with corner Majorana zero modes (MZM) based on two-dimensional topological insulators (2DTI). The lattice symmetry can naturally lead to the anisotropic coupling of edge states along different directions to the in-plane magnetic field and conventional s-wave pairings, thus leading to a single MZM locating at the corners for various lattice patterns. In particular, we focus on the 2DTI with D$_{3d}$ lattice symmetry and found different types of gap opening for the edge states along the armchair and zigzag edges in a broad range of parameters. As a consequence, a single MZM exists at the corner between the zigzag and armchair edges, and is robust against weakly lattice symmetry broken. We propose to realize such corner MZMs in a variety of polygon patterns, such as triangles and quadrilaterals. We further show their potentials in building the Majorana network through constructing the Majorana Y-junction under an in-plane magnetic field., Comment: 6 pages, 4 figures, updated with the application for bismuthine

Published
2018
Full Text
View/download PDF

3. The Efficacy of Omega-3 Fatty Acids as the Monotherapy for Depression: A Randomized, Double-Blind, Placebo-Controlled Pilot Study.

Author

Wu, Suet-Kei, Yang, Kai-Jie, Liu, Wen-Chun, Malau, Ikbal Andrian, Zailani, Halliru, Chang, Cheng-Ho, Huang, Shih-Yi, Chang, Jane Pei-Chen, Chiu, Wei-Che, and Su, Kuan-Pin

Abstract

Objective: Omega-3 polyunsaturated fatty acids (n-3 PUFAs) have demonstrated protective effects in major depressive disorder (MDD) patients receiving antidepressant treatment. However, there have been a few double-blind randomized controlled trials focused on n-3 PUFAs as monotherapy in MDD, and the outcomes have been mixed. This study aimed to assess the clinical effects of n-3 PUFAs monotherapy in patients with MDD. Methods: A total of 60 patients with MDD participated in this 12-week double-blind randomized controlled trial. They were randomized to either the n-3 PUFAs group (n = 30; 3.2 g of eicosapentaenoic acid, EPA and docosahexaenoic acid, DHA per day) or the placebo group (n = 30; 3.2 g of soybean oil per day). The severity of depression was evaluated using the Hamilton Rating Scale for Depression (HRSD). Results: The n-3 PUFAs group had a significantly lower HRSD score compared with the placebo group at week 4 (p = 0.004), week 6 (p = 0.006), week 8 (p = 0.004), and week 12 (p = 0.01). The n-3 PUFAs group showed slightly higher rates for both remission (26.7% vs. 10%, p = 0.095) and response (23.3% vs. 6.7%, p = 0.145) compared with the placebo group at week 12, but these differences did not reach statistical significance. Conclusions: These findings suggested that monotherapy of n-3 PUFAs could improve depression and potentially serve as an alternative option for MDD patients. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

12. The Clinical Observation of Inflammation Theory for Depression: The Initiative of the Formosa Long COVID Multicenter Study (FOCuS)

Author

Liu, Shu-Tsen, primary, Lin, Sheng-Che, additional, Chang, Jane Pei-Chen, additional, Yang, Kai-Jie, additional, Chu, Che-Sheng, additional, Yang, Chia-Chun, additional, Liang, Chih-Sung, additional, Sun, Ching-Fang, additional, Wang, Shao-Cheng, additional, Satyanarayanan, Senthil Kumaran, additional, and Su, Kuan-Pin, additional

Published
2023
Full Text
View/download PDF

20. Compositional and Functional Adaptations of Intestinal Microbiota and Related Metabolites in CKD Patients Receiving Dietary Protein Restriction

Author

Wu, I-Wen, primary, Lee, Chin-Chan, additional, Hsu, Heng-Jung, additional, Sun, Chiao-Yin, additional, Chen, Yuen-Chan, additional, Yang, Kai-Jie, additional, Yang, Chi-Wei, additional, Chung, Wen-Hun, additional, Lai, Hsin-Chih, additional, Chang, Lun-Ching, additional, and Su, Shih-Chi, additional

Published
2020
Full Text
View/download PDF

43. On Power Allocation and Relay Selection for a Two-Way Amplify-and-Forward Relaying System.

Author

Wang, Chin-Liang, Cho, Ting-Nan, and Yang, Kai-Jie

Subjects
RAYLEIGH fading channels, AMPLITUDE modulation, COMPUTER simulation, ERRORS, TELECOMMUNICATION systems
Abstract

In this paper, we investigate power allocation and relay selection problems for a two-way amplify-and-forward (AF) relaying system. We first derive asymptotic overall symbol error probabilities (AOSEPs) for the case of one relay cooperating with two sources with respect to the second-order channel statistics for both M-ary quadrature amplitude modulation (M-QAM) and M-ary phase-shift keying (M-PSK), and then present the corresponding optimal power allocation and relay selection schemes that minimize the AOSEPs. To achieve the full diversity order, we further propose alternative power allocation and relay selection methods by simply replacing the statistical channel information of the first scheme with instantaneous one. The diversity order of the second scheme is then verified by deriving the lower and upper bounds of the corresponding asymptotic overall outage probability. Computer simulation results are also given to support the analytical results. [ABSTRACT FROM AUTHOR]

Published
2013
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results