Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Xiuyun Zheng"'
Autor:
Xiuyun Zheng, Siqi Ding, Qin Mei, Chuan Wu, Qunyan Zhang, Chunfeng Fu, Quancheng Han, Shiyu Jin, Ruiqi Yu, Muchen Yu, Zixian Ye, Jun Shen, Jianguang Xu, Xiaoyu Liu, Tingting Wu
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-14 (2024)
Abstract Background The lateral profile is an important indicator of facial attractiveness. This study explored the general characteristics of the forehead profile and protrusion, and their relationship with related factors in structure and developme
Externí odkaz:
https://doaj.org/article/d4dd570e6a914959ac68b5c01a5db63b
Publikováno v:
BMC Ophthalmology, Vol 22, Iss 1, Pp 1-7 (2022)
Abstract Purpose To evaluate corneal densitometry after allogeneic corneal small-incision intrastromal lenticule implantation (SILI) for hyperopia. Methods A retrospective study. Thirty-one hyperopic eyes of 24 patients who underwent SILI were enroll
Externí odkaz:
https://doaj.org/article/e34e041bbde848b7868463f3577d0fbe
Autor:
Shuting Sun, Jinjin Lu, Yawen Wang, Ya Wang, Lihao Wu, Saiqiong Zhu, Xiuyun Zheng, Xueqin Lu, Hongbo Xu
Publikováno v:
Frontiers in Public Health, Vol 10 (2022)
BackgroundTo identify gender differences in factors associated with the health literacy of hospitalized older patients with chronic diseases.MethodsA total of 471 hospitalized older patients with chronic diseases in four hospitals were investigated f
Externí odkaz:
https://doaj.org/article/9ba75c4c1988464aaa38ee5e505b14d6
Publikováno v:
Journal of International Medical Research, Vol 46 (2018)
Objective Decentered flaps are rarely reported after femtosecond laser-assisted in situ keratomileusis flap procedures. We present a patient with a decentered flap after preparation of a corneal flap using the Femto LDV technique. Methods The 22-year
Externí odkaz:
https://doaj.org/article/8be0e5d7fa3c4e6bb7e1b6f010438a1d
Publikováno v:
Information, Vol 6, Iss 3, Pp 287-299 (2015)
Owing to the robustness of large sparse corruptions and the discrimination of class labels, sparse signal representation has been one of the most advanced techniques in the fields of pattern classification, computer vision, machine learning and so on
Externí odkaz:
https://doaj.org/article/c705387261d945179380850a658e9361
Publikováno v:
Journal of Ophthalmology, Vol 2016 (2016)
Purpose. To evaluate the changes in epithelial thickness profile following transepithelial photorefractive keratectomy (T-PRK) for myopia and to investigate the effect of epithelial remodeling on corneal asphericity. Methods. Forty-four patients (44
Externí odkaz:
https://doaj.org/article/07585ba3ce344b24907f1e1fdda87a02
Autor:
Xiuyun Zheng, Jiarong Shi
Publikováno v:
Algorithms, Vol 11, Iss 9, p 133 (2018)
In this paper, a modification to the Polak–Ribiére–Polyak (PRP) nonlinear conjugate gradient method is presented. The proposed method always generates a sufficient descent direction independent of the accuracy of the line search and the convexit
Externí odkaz:
https://doaj.org/article/36b5d907569e46cca2f01acca9768339
Publikováno v:
PLoS ONE, Vol 10, Iss 9, p e0138028 (2015)
In recent years, the intrinsic low rank structure of some datasets has been extensively exploited to reduce dimensionality, remove noise and complete the missing entries. As a well-known technique for dimensionality reduction and data compression, Ge
Externí odkaz:
https://doaj.org/article/d9c37faf23d4484ea55bc6564b1e070c
Publikováno v:
Entropy, Vol 19, Iss 8, p 424 (2017)
Low-rank matrix factorizations such as Principal Component Analysis (PCA), Singular Value Decomposition (SVD) and Non-negative Matrix Factorization (NMF) are a large class of methods for pursuing the low-rank approximation of a given data matrix. The
Externí odkaz:
https://doaj.org/article/21f283aa38c14e4ea51a8e027e9f3706
Publikováno v:
Algorithms, Vol 9, Iss 2, p 28 (2016)
Low-Rank Tensor Recovery (LRTR), the higher order generalization of Low-Rank Matrix Recovery (LRMR), is especially suitable for analyzing multi-linear data with gross corruptions, outliers and missing values, and it attracts broad attention in the fi
Externí odkaz:
https://doaj.org/article/7d4a8290db464650bb546cc208d17bf4