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Optical coherence tomography angiography study on retinochoroidal thickness and blood flow changes after posterior scleral reinforcement surgery

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PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY 2025年 53卷 104628-104628页

作者： Mao, Yongqi Chen, Hao Tang, Yunhua Geng, Haoming zhang, fuwen Chengdu Univ TCM Eye Sch Chengdu 610084 Sichuan Peoples R China Chengdu Univ TCM Chengdu Sichuan Peoples R China Chengdu Univ TCM Ineye Hosp Chengdu Sichuan Peoples R China Key Lab Sichuan Prov Ophthalmopathy Prevent & Cure TCM Lab Chengdu Sichuan Peoples R China Retinal Image Technol & Chron Vasc Dis Prevent & C Chengdu Sichuan Peoples R China

Purpose: Based on optical coherence tomography angiography (OCTA), we investigate the effects of posterior scleral reinforcement surgery on the fundus structure and function in patients with high myopia. Methods: Retrospective clinical study. Forty cases (41eyes) of high myopia patients who underwent posterior scleral reinforcement surgery at Chengdu University of Traditional Chinese Medicine Affiliated Silver Eye Hospital from January 2022 to January 2025 were selected. Follow-up periods included postoperative 3 months, 6 months, and 1 year. Key indicators before and after surgery were compared, including best-corrected visual acuity (BCVA), axial length (AL), spherical equivalent (SE), retinal thickness (RT), choroidal thickness (CT), and Superficial retinal capillary plexus density (SCP), deep retinal capillary plexus density (DCP), choroidal vascularity index (CVI), choroidal stromal vascularity index (CSI). Results: The study included 40 patients (41 eyes), comprising 9 male patients (9 eyes) and 31 female patients (32 eyes), with a mean age of 42.05 +/- 18.71 *** the last follow-up, patients showed significantly shortened AL (P < 0.001), significantly improved BCVA (P < 0.05), and significantly increased CT (P < 0.05).SCP also exhibited significant postoperative increases (P < 0.05). Additionally,CVI and CSI showed significant postoperative elevation (P < 0.05). Conclusion: This study demonstrates that posterior scleral reinforcement achieves axial stabilization through mechanical reinforcement, mitigates vitreous traction forces on the retina and choroid, enhances visual acuity, improves choroidoretinal microcirculation, and optimizes fundus architecture.

关键词： Choroidal vascularity index Choroidal thickness Axial length OCTA Posterior scleral reinforcement surgery

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A contrastive analysis of Sb distribution in Sn-Bi-Sb solder by WDS and EDS

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MATERIALS LETTERS 2024年 371卷

作者： Li, Fusheng Wang, Zhigang Liu, Xixue Xu, Lei zhang, fuwen He, Huijun Beijing COMPO Adv Technol Co Ltd Beijing 101407 Peoples R China GRIPM Adv Mat Co Ltd Beijing 101407 Peoples R China

This work provides a contrastive analysis of Sb distribution in Sn-57Bi-1Sb solder by WDS mapping, EDS count map and EDS net map. The mapping analysis on the same region shows that the WDS mapping provides the more accurate data on the distribution of Sb compared with EDS analysis, including the concentration gradient of dissolved Sb and the fine SnSb particles with size less than 1 mu m. WDS equipped with the enhanced spectral resolution is a critical technique to separate the complex overlap spectrum, which was recommended for the Sb detection in Sb-doped solders.

关键词： X-ray techniques Electron microscopy Electronic materials Segregation

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百年中国共产党坚持以人民为中心的理论逻辑探析

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河南大学学报（社会科学版） 2022年第1期62卷 7-13,152页

作者：张富文上海大学马克思主义学院上海200444

中国共产党在百年的历史征程中,形成了坚持以人民为中心的内在理论逻辑。以人民为中心的理论生成于新民主主义革命时期,是人民解放论为目的、人民主体论为动力、人民上帝论为立场的有机统一。以人民为中心的理论发展于新中国成立以后,... 详细信息

中国共产党在百年的历史征程中,形成了坚持以人民为中心的内在理论逻辑。以人民为中心的理论生成于新民主主义革命时期,是人民解放论为目的、人民主体论为动力、人民上帝论为立场的有机统一。以人民为中心的理论发展于新中国成立以后,主要表现为人民万岁论为基本立场、人民主权论为核心内容、人民公仆论为执政理念的有机结合。以人民为中心的理论恢复发展于改革开放以后,是人民思想解放论为前提、人民物质利益论为核心、人民共同富裕论为目标的有机融合。以人民为中心的理论深化于党的十三届四中全会以后,集中体现为人民利益代表论为执政方向、人民民主论为政治保障和人的全面发展论为发展目标的辩证统一。以人民为中心的理论强化于党的十六大以后,党鲜明地提出了以人为本,是权为民所用、情为民所系、利为民所谋的内在统一。以人民为中心的理论创新于党的十八大以后,党的十八大明确提出了以人民为中心的思想理念,形成了人民至上、人民主体、人民共享、人民评判“四位一体”的内在统一理论逻辑。

关键词：中国共产党百年以人民为中心理论逻辑

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Shaking table test for externally-hung self-centering rocking wall structure

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BULLETIN OF EARTHQUAKE ENGINEERING 2021年第2期19卷 863-887页

作者： Li, Xiangmin zhang, fuwen Tian, Kun Wang, Zhuolin Jiang, Lu Dong, Jinzhi Shanghai Res Inst Bldg Sci Co Ltd Shanghai Key Lab Engn Struct Safety Room 211Bldg Jianke75 South Wanping Rd Shanghai 200032 Peoples R China

This paper proposes an innovative externally-hung self-centering rocking wall (ESRW) structural system for retrofitting existing reinforced concrete structures. Reinforced corbels are installed on the columns of an existing structure to which rocking walls having unbonded post-tensioned tendons are connected using H-shaped connectors. The seismic performance and self-centering ability of the ESRW were investigated through a series of shaking table tests. For comparison, an unretrofit control structure (UCS) was also tested. The UCS was severely damaged under peak ground acceleration (PGA) = 1.2 g test conditions: some reinforcing bars were fractured and the UCS was close to collapse. For the ESRW, the damage was significantly reduced: there were only minor cracks appearing at PGA = 1.5 g test conditions and no damage appeared at the corners of the rocking walls. The maximum story drift and residual deformation of the ESRW were reduced 88% and 92%, respectively, relative to the UCS test. The ESRW structure showed desirable seismic performance and self-centering characteristics during shaking table tests.

关键词： Self-centering structure Rocking wall Shaking table test Dynamic response Externally-hung

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Experimental study on longitudinal embedding performance of bolted engineered bamboo connections

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CONSTRUCTION AND BUILDING MATERIALS 2024年 411卷

作者： Leng, Yubing Wang, Mingqian Xu, Qingfeng Harries, Kent A. zhang, fuwen Liu, Kewei Shanghai Res Inst Bldg Sci Co Ltd Shanghai Key Lab Engn Struct Safety Shanghai 200032 Peoples R China Univ Pittsburgh Dept Civil & Environm Engn Pittsburgh PA 15260 USA Int Bamboo & Rattan Org Beijing 100102 Peoples R China 75 South Wanping Rd Shanghai Peoples R China

This paper summarizes the experimental results of longitudinal embedding tests of bolted engineered bamboo connections. Six groups of bolted engineered bamboo connection specimens were prepared and tested monotonically up to failure. Test variables were bolt diameter and type of engineered bamboo: laminated bamboo or bamboo scrimber. Connection stiffness and embedding strength of the specimens of bamboo scrimber were greater than those of the specimens of the laminated bamboo - reflecting the difference in material density. Embedding strength of the laminated bamboo was insensitive to bolt diameter whereas embedding strength of the bamboo scrimber decreased with an increase of the bolt diameter. It was shown that in order to accurately model bolt embedding into bamboo, a foundation model is required. Reduction factors for strength and modulus for such a model were calibrated using experimental results. A parametric study addressing friction and foundation model size is presented.

关键词： Engineered bamboo Bolted connection Embedding performance Calibration of foundation model

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马克思恩格斯关于人与自然关系理论的革命性变革

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当代世界社会主义问题 2022年第2期 13-27页

作者：张富文上海大学马克思主义学院高校中国共产党伟大建党精神研究中心上海大学分中心上海200444

马克思恩格斯实现了人与自然关系理论的革命性变革。一是本体论上人与自然关系的本原变革,实现了从机械自然到辩证自然、从精神自然到实在自然、从直观自然到人化自然的革命性变革;二是实践观上人与自然关系的整体变革,以科学实践观为基... 详细信息

马克思恩格斯实现了人与自然关系理论的革命性变革。一是本体论上人与自然关系的本原变革,实现了从机械自然到辩证自然、从精神自然到实在自然、从直观自然到人化自然的革命性变革;二是实践观上人与自然关系的整体变革,以科学实践观为基础,实现了从两极到中介的人与自然关系的现实变革;三是历史观上人与自然关系的历史变革,自然以生产劳动为中介构成人类生活历史图景,人与自然辩证统一于劳动实践的历史过程,自然史和人类史是对立统一的有机整体;四是资本霸权下人与自然关系断裂的批判,人和自然遭受资本霸权奴役,造成人和自然之间物质变换断裂,加剧了人与自然之间对立;五是人与自然关系和解的前瞻,人与自然关系和解在共产主义社会才能实现,是自然主义和人道主义、劳动解放和自然解放辩证统一的过程,是必然王国向自由王国跃进的螺旋式上升的长期历史过程。

关键词：马克思恩格斯人与自然革命性变革

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新时代脱贫攻坚的人民共享原则

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中共福建省委党校（福建行政学院）学报 2022年第4期 29-37页

作者：张富文上海大学马克思主义学院

新时代脱贫攻坚形成了许多宝贵的经验,其中坚持以人民为中心,实现人民共享是最重要的经验之一。新时代脱贫攻坚的实践活动蕴含了人民共享的基本原则,人民共享是新时代脱贫攻坚的价值规范与实践引导。新时代脱贫攻坚的人民共享原则是全... 详细信息

新时代脱贫攻坚形成了许多宝贵的经验,其中坚持以人民为中心,实现人民共享是最重要的经验之一。新时代脱贫攻坚的实践活动蕴含了人民共享的基本原则,人民共享是新时代脱贫攻坚的价值规范与实践引导。新时代脱贫攻坚的人民共享原则是全民共享、全面共享、共建共享、渐进共享的“四位一体”的有机统一。新时代脱贫攻坚体现了全民共享的基本立场、全面共享的基本内容、共建共享的实现方式、渐进共享的历史进程。全民共享、全面共享、共建共享、渐进共享在新时代脱贫攻坚中形成了相互依存、相互联系、相互作用、相互转化的有机整体,要在深化拓展、巩固脱贫攻坚成果中不断推动全体人民共同富裕取得更为明显的实质性进展。

关键词：脱贫攻坚全民共享全面共享共建共享渐进共享

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Seismic performance evaluation of a five-story column-and-beam glulam frame with steel-timber buckling restrained braces

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JOURNAL OF BUILDING ENGINEERING 2023年 80卷

作者： Wang, Mingqian Zhou, Bochang Harries, Kent A. Chen, Xi zhang, fuwen Xu, Qingfeng Shanghai Res Inst Bldg Sci Co Ltd Shanghai Key Lab Engn Struct Safety Shanghai 200032 Peoples R China Shanghai Sheshan Natl Geophys Observ Shanghai Peoples R China Univ Pittsburgh Dept Civil & Environm Engn Pittsburgh PA 15260 USA 75 South Wanping Rd Shanghai Peoples R China 87 Lanxi Rd Shanghai Peoples R China

This paper summarizes the results of numerical simulation and fragility analysis of a five-story column-and-beam glulam frame with chevron steel-timber buckling restrained braces (BRBs). Key parameters of the rotational behavior of the bolted beam-to-column connections and column base connections were modeled and calibrated using shaking table test results. Prediction methods of the stiffness and capacity of the steel-timber BRBs were proposed and validated with the test results. An FEM model of the glulam frame with steel-timber BRBs was developed to capture the frame seismic response and validated using shaking table test results. The FEM model which considered damping change and damage accumulation achieved good agreement with shaking table test results, with the modelling errors of displacement amplitude for most condi-tions less than 15 %. Fragility analysis of the frame was conducted based on the validated FEM model. The probability of exceeding the collapse prevention limit state under the VII-rare earthquake excitations was reduced to close to zero when steel-timber BRBs were used. This study demonstrates the potential for using glulam frames with steel-timber BRBs in Chinese VII seismic regions.

关键词： Column-and-beam glulam frame Steel-timber BRBs Shaking table tests FEM analysis Fragility analysis

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Puerarin Attenuates Iron Overload-Induced Ferroptosis in Retina through a Nrf2-Mediated Mechanism

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MOLECULAR NUTRITION & FOOD RESEARCH 2024年第4期68卷 2300123-2300123页

作者： Song, Qiongtao Jian, Wenyuan zhang, Yuanyuan Li, Qiang Zhao, Ying Liu, Rong Zeng, Yan zhang, fuwen Duan, Junguo Chengdu Univ TCM Eye Sch 37 Twelve Bridge Rd Chengdu 610075 Sichuan Peoples R China Chengdu Univ TCM Ineye Hosp 8 Xinghui Rd Chengdu 610084 Sichuan Peoples R China Key Lab Sichuan Prov Ophthalmopathy Prevent & Cure 37 Twelve Bridge Rd Chengdu 610075 Peoples R China Guangzhou Ineye Vis Hlth Innovat Inst 2 Fenghuang 3rd Rd Guangzhou 510555 Guangdong Peoples R China Hebei Key Lab Integrat Med Liver Kidney Patterns 326 Xinshi South Rd Shijiazhuang 050200 Hebei Peoples R China

ScopeAge-related increases in retinal iron are involved in the development of retinal degeneration. The recently discovered iron-dependent mechanism of cell death known as ferroptosis has been linked to a wide range of pathologies. However, its role in iron overload-induced retinal degeneration is still uncertain. Puerarin has been associated with retinal protection. The purpose of this research is to determine how puerarin prevents retinal ferroptosis under iron overload *** and resultsModels of iron overload in Kunming mice, 661W cell, and ARPE-19 cell are established. Increased iron deposition significantly worsens retinal pathology, decreases cell viability, and induces ferroptotic changes. Puerarin mitigates iron overload-induced ferroptosis by decreasing excessive iron through the regulation of iron handling proteins and lowering lipid peroxidation through the inhibition of cyclooxygenase 2 expression and activation of the nuclear factor-E2-related factor 2 (Nrf2) signaling pathway and downstream ferroptosis-related proteins (solute carrier family 7 member 11, glutathione peroxidase 4 and heme oxygenase-1). The protective effect of puerarin on ferroptosis is diminished by the Nrf2-specific inhibitor *** findings suggest targeting ferroptosis may be a novel strategy for the management of retinal degeneration. Puerarin may exert some of its ocular benefits by attenuating ferroptosis. Puerarin ameliorates retinal pathology, increases retinal cell viability, and protects against ferroptotic changes such as increased iron deposits and enhanced lipid peroxidation. Potential antiferroptotic methods include decreasing excessive iron by regulating iron handling proteins and lowering lipid peroxidation by inhibiting COX2 expression and activating the Nrf2 signaling pathway as well as other downstream ferroptosis-related proteins (GPX4, SLC7A11, and HO-1).image

关键词： ferroptosis iron overload Nrf2 Puerarin retinal degeneration

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Enhanced thermoelectric properties of Ag doped Cu2S by using hydrothermal method

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JOURNAL OF ALLOYS AND COMPOUNDS 2022年 919卷 1页

作者： Yue, Ziwei Zhou, Wei Ji, Xiaoliang zhang, fuwen Guo, Fu Beijing Univ Technol Fac Mat & Mfg Beijing 100124 Peoples R China Beijing Univ Technol Key Lab Adv Funct Mat Minist Educ Beijing 100124 Peoples R China Gen Res Inst Nonferrous Met Natl Engn Res Ctr Nonferrous Met Composites Beijing 100088 Peoples R China Beijing Union Univ Coll Robot Beijing 100101 Peoples R China

Harvesting waste heat into electricity through thermoelectric (TE) material can make a great contribution to reducing energy consumption and environment pollution. Cu2S has proved itself to be a highly promising TE material, whereas the poor electrical property restricts its practical application. Therefore, the way to improve its electrical property by doping elements with high carrier concentration in an environmental-friendly method accelerate its application. Herein, Ag nanoparticles are incorporated into a p-type Cu2S (Ag/Cu2S) by a facile hydrothermal method to improve the thermoelectric properties. The introduction of Ag can effectively tune the carrier concentration, resulting in a high power factor of 1698 mu W m(-1) K-2;meanwhile, Ag doping can also enhance the phonon scattering, further reducing the thermal conductivity. Eventually, a ZT(max) peak value & AP;1.4 @ 773 K is achieved in the 0.5 wt% Ag-doped Cu2S samples. The design principle for Ag/Cu2S composites opens up a new pathway for the synthesis and application of thermoelectric material.(c) 2022 Elsevier B.V. All rights reserved.

关键词： Thermoelectric material Cu2S Hydrothermal method Ag nanoparticles

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