Search Results - "Qiwei Feng"

Sixth-Order Compact Finite Difference Method for 2D Helmholtz Equations with Singular Sources and Reduced Pollution Effect by Qiwei Feng, Qiwei Feng, Bin Han, Bin Han, Michelle Michelle, Michelle Michelle

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Deep learning of feature representation with multiple instance learning for medical image analysis by Yan Xu, Tao Mo, Qiwei Feng, Peilin Zhong, Maode Lai, Chang, Eric I-Chao

“…This paper studies the effectiveness of accomplishing high-level tasks with a minimum of manual annotation and good feature representations for medical images…”
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Analysis of medical impoverishment and its influencing factors among China's rural near-poor, 2016-2020 by Feng, Qiwei, Che, Yi, Yi, Shuying, Wang, Ying, Chen, Wen, Xia, Xinbin

“…This study investigates the determinants of medical impoverishment among China's rural near-poor, aiming to enhance public health services and establish…”
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Phlogopite 40Ar/39Ar Geochronology for Guodian Skarn Fe Deposit in Qihe–Yucheng District, Luxi Block, North China Craton: A Link between Craton Destruction and Fe Mineralization by Qiwei Feng, Mingbo Gao, Chao Fu, Siyuan Li, Yadong Li, Jilei Gao, Ming Ma, Zhaozhong Wang, Yidan Zhu, Binglu Wu, Zhuang Duan, Zhicai Dang

“…The Guodian Fe deposit is representative of the newly discovered Qihe–Yucheng high-grade Fe skarn ore cluster, Luxi Block, eastern North China Craton (NCC)…”
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Geochronological, Geochemical and Sr-Nd-Pb-Hf Isotopic Constraints on the Petrogenesis of Pyroxene Diorites in the Sanchahe Iron-Gold Deposit, Western Shandong by Ming Ma, Chao Zhang, Yadong Li, Mingbo Gao, Jilei Gao, Siyuan Li, Qiwei Feng, Jian Li, Cui Tao, Yankui Liu

“…The Sanchahe iron-gold deposit in western Shandong province is located in the southeast of the North China Craton. The skarn type of iron-gold deposit (without…”
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Ore Geology, Fluid Inclusion, and S- and Pb-Isotopic Constraints on the Genesis of the Chitudian Zn-Pb Deposit, Southern Margin of the North China Craton by DUAN, Shigang, XUE, Chunji, CHI, Guoxiang, LIU, Guoyin, YAN, Changhai, FENG, Qiwei, SONG, Yaowu

“…The Chitudian Zn‐Pb ore deposit, Luanchuan, Henan province, was recently discovered in the southern margin of the North China Craton. The Zn‐Pb orebodies are…”
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Sixth-order hybrid finite difference methods for elliptic interface problems with mixed boundary conditions by Feng, Qiwei, Han, Bin, Minev, Peter

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A high order compact finite difference scheme for elliptic interface problems with discontinuous and high-contrast coefficients by Feng, Qiwei, Han, Bin, Minev, Peter

“…•We construct a high order compact 9-point finite difference scheme for the numerical solutions on uniform meshes for elliptic interface problems with…”
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Compact 9-point finite difference methods with high accuracy order and/or M-matrix property for elliptic cross-interface problems by Feng, Qiwei, Han, Bin, Minev, Peter

“…In this paper we develop finite difference schemes for elliptic problems with piecewise continuous coefficients that have (possibly huge) jumps across fixed…”
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Sixth order compact finite difference schemes for Poisson interface problems with singular sources by Feng, Qiwei, Han, Bin, Minev, Peter

“…Let Γ be a smooth curve inside a two-dimensional rectangular region Ω. In this paper, we consider the Poisson interface problem −∇2u=f in Ω∖Γ with Dirichlet…”
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Cyclin-Dependent Kinase Inhibitor 2b Mediates Excitotoxicity-Induced Death of Retinal Ganglion Cells by Tawarayama, Hiroshi, Feng, Qiwei, Murayama, Namie, Suzuki, Noriyuki, Nakazawa, Toru

“…Glutamate excitotoxicity seems to contribute to retinal ganglion cell (RGC) death in various eye diseases, but the underlying molecular mechanisms are not…”
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Air-Calcined Fe/Ni-Based Metal–Organic Framework Nanosheets for Oxygen Evolution Reactions by Zhang, Shengkang, Xiao, Yu, Feng, Qiwei, Lei, Ziqiang

“…The oxygen evolution reaction (OER) plays a pivotal role in the hydrolysis process of zinc–air batteries. Consequently, it is essential to develop cathode…”
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Distinct Numerical Solutions for Elliptic Cross-Interface Problems Using Finite Element and Finite Difference Methods by Feng, Qiwei

“…In this paper, we discuss the second-order finite element method (FEM) and finite difference method (FDM) for numerically solving elliptic cross-interface…”
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Ecel1 Knockdown With an AAV2-Mediated CRISPR/Cas9 System Promotes Optic Nerve Damage-Induced RGC Death in the Mouse Retina by Sato, Kota, Shiga, Yukihiro, Nakagawa, Yurika, Fujita, Kosuke, Nishiguchi, Koji M, Tawarayama, Hiroshi, Murayama, Namie, Maekawa, Shigeto, Yabana, Takeshi, Omodaka, Kazuko, Katayama, Shota, Feng, Qiwei, Tsuda, Satoru, Nakazawa, Toru

“…To assess the therapeutic potential of endothelin-converting enzyme-like 1 (Ecel1) in a mouse model of optic nerve crush. Ecel1 expression was evaluated with…”
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A Derivative-Orthogonal Wavelet Multiscale Method for 1D Elliptic Equations with Rough Diffusion Coefficients by Feng, Qiwei, Han, Bin

“…In this paper, we investigate 1D elliptic equations $-\nabla\cdot (a\nabla u)=f$ with rough diffusion coefficients $a$ that satisfy $0<a_{\min}\le a\le…”
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Reduced glutathione level in the aqueous humor of patients with primary open-angle glaucoma and normal-tension glaucoma by Sato, Kota, Saigusa, Daisuke, Kokubun, Taiki, Fujioka, Amane, Feng, Qiwei, Saito, Ritsumi, Uruno, Akira, Matsukawa, Naomi, Ohno-Oishi, Michiko, Kunikata, Hiroshi, Yokoyama, Yu, Yasuda, Masayuki, Himori, Noriko, Omodaka, Kazuko, Tsuda, Satoru, Maekawa, Shigeto, Yamamoto, Masayuki, Nakazawa, Toru

“…Glaucoma is a leading cause of blindness worldwide in older people. Profiling the aqueous humor, including the metabolites it contains, is useful to understand…”
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Author Correction: Reduced glutathione level in the aqueous humor of patients with primary open-angle glaucoma and normal-tension glaucoma by Sato, Kota, Saigusa, Daisuke, Kokubun, Taiki, Fujioka, Amane, Feng, Qiwei, Saito, Ritsumi, Uruno, Akira, Matsukawa, Naomi, Ohno-Oishi, Michiko, Kunikata, Hiroshi, Yokoyama, Yu, Yasuda, Masayuki, Himori, Noriko, Omodaka, Kazuko, Tsuda, Satoru, Maekawa, Shigeto, Yamamoto, Masayuki, Nakazawa, Toru

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Sixth-Order Hybrid Finite Difference Methods for Elliptic Interface Problems with Mixed Boundary Conditions by Feng, Qiwei, Han, Bin, Minev, Peter

“…In this paper, we develop sixth-order hybrid finite difference methods (FDMs) for the elliptic interface problem $-\nabla \cdot( a\nabla u)=f$ in…”
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Compact 9-Point Finite Difference Methods with High Accuracy Order and/or M-Matrix Property for Elliptic Cross-Interface Problems by Feng, Qiwei, Han, Bin, Minev, Peter

“…In this paper we develop finite difference schemes for elliptic problems with piecewise continuous coefficients that have (possibly huge) jumps across fixed…”
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Hybrid Finite Difference Schemes for Elliptic Interface Problems with Discontinuous and High-Contrast Variable Coefficients by Feng, Qiwei, Han, Bin, Minev, Peter

“…For elliptic interface problems with discontinuous coefficients, the maximum accuracy order for compact 9-point finite difference scheme in irregular points is…”
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