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Design of multifunctional interfaces on ceramic solid electrolytes for high-performance lithium-air batteries

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Green Energy & Environment 2025年第1期10卷 183-192页

作者： Yunxin Shi Ziyang guo Changhong Wang Mingze Gao Xiaoting Lin Hui Duan Yonggang Wang Xueliang Sun College of Energy Material and Chemistry College of Chemistry and Chemical EngineeringInner Mongolia UniversityHohhot010021China Department of Mechanical and Materials Engineering Western UniversityLondonONN6A 5B9Canada Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New EnergyiChEM(Collaborative Innovation Center of Chemistry for Energy Materials)Fudan UniversityShanghai200433China Eastern Institute for Advanced Study Eastern Institute of TechnologyNingboZhejiang315100China

High-energy-density lithium(Li)–air cells have been considered a promising energy-storage system,but the liquid electrolyte-related safety and side-reaction problems seriously hinder their *** address these above issues,solid-state Li–air batteries have been widely ***,many commonly-used solid electrolytes generally face huge interface impedance inLi–air cells and also showpoor stability towards ambient air/Li ***,we fabricate a differentiating surface-regulated ceramic-based composite electrolyte(DSCCE)by constructing disparately LiI-containing polymethyl methacrylate(PMMA)coating and Poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP)layer on both sides of Li_(1.5)Al_(0.5)Ge_(1.5)(PO_(4))_(3)(LAGP).The cathode-friendly LiI/PMMA layer displays excellent stability towards superoxide intermediates and also greatly reduces the decomposition voltage of discharge products in Li–air ***,the anode-friendly PVDF-HFP coating shows low-resistance properties towards ***,Li dendrite/passivation derived from liquid electrolyte-induced side reactions and air/I-attacking can be obviously suppressed by the uniformand compact composite *** a result,the DSCCE-based Li–air batteries possess high capacity/low voltage polarization(11,836mAh g^(-1)/1.45Vunder 500mAg^(-1)),good rate performance(capacity ratio under 1000mAg^(-1)/250mAg^(-1) is 68.2%)and longterm stable cell operation(~300 cycles at 750 mA g^(-1) with 750 mAh g^(-1))in ambient air.

关键词： Li-air batteries Li_(1.5)Al_(0.5)Ge_(1.5)(PO_(4))_(3) Polymers Composite electrolyte Ambient air

Synthesis and Crystal Structure of 4-Azido-2,2,6,6-Tetramethylpiperidine-1-oxyl Free Radical

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Chinese Journal of Structural Chemistry 2006年第2期25卷 127-130页

作者： ZHOU bao-Han CHEN Yun-feng YIN guo-Dong WU An-Xin Key Laboratory of Pesticide and Chemical Biology Ministry of Education College of Chemistry Central China Normal University Wuhan 430079 China

The title compound 4-azido-2,2,6,6-tetramethylpiperidine-l-oxyl （C9H17N4O, Mr = 197.27） has been synthesized and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to triclinic, space group P1^- with a = 5.8464（12）, b = 8.2476（17）, c = 11.954（2） A°, a = 101.973（4）, β = 97.186（3）, γ, = 100.232（3）°, V = 546.98（19） ,A°^3, Z = 2, Dc= 1.198 g/cm^3, μ（MoKa） = 0.082 mm^-1, F（000） = 214, R = 0.0495 and wR = 0.1355 for 1677 observed reflections with I 〉 2σ（I）. X-ray analysis reveals that the six-membered ring adopts a chair conformation and the bond length of N（1）-O（1） is 1.2838（19）A°.

关键词： crystal structure nitroxide radical synthesis

Microstructures and tensile properties of as-cast Mg-5Sn-1Si magnesium alloy modified with trace elements of Y,Bi,Sb and Sr

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China Foundry 2021年第1期18卷 9-17页

作者： He-shuai Yu Xue-feng guo Hong-bao Cui School of Materials Science and Engineering Henan Polytechnic UniversityJiaozuoHenan454000China Henan International Joint Research Laboratory for High-Performance Light Metallic Materials and Numerical Simulations Henan Polytechnic UniversityJiaozuoHenan454000China

The microstructures and mechanical properties of as-cast Mg-5 Sn-1 Si magnesium alloy modified with trace elements Y,Bi,Sb and Sr were investigated and *** show that the microstructure of the as-cast Mg-5 Sn-1 Si alloy consists ofα-Mg,Mg_(2) Si,Mg_(2) Sn and Mg_(2)(Si_xSn_(1-x))*** adding 0.8 wt.%Y,0.3 wt.%Bi,0.9 wt.%Sb and 0.9 wt.%Sr,respectively into the Mg-5 Sn-1 Si magnesium alloy,Mg_(24)Y_(5),Mg_(3) Bi_(2),Mg_(3) Sb_(2) and Mg_(2) Sr phases are precipitated *** elements can refineα-Mg grain and Chinese scriptshaped Mg_(2) Si *** efficiency of different trace elements onα-Mg grain and Mg_(2) Si phase is *** element has the best refinement effect,followed by Sb and Bi,while Y has the least refinement ***-5 Sn-1 Si-0.9 Sr alloy has higher tensile properties than the other three modified *** refinement mechanism of Y,Bi and Sr elements on Mg-5 Sn-1 Si magnesium alloy can be explained by the growth restriction factors and the solute *** Mg-5 Sn-1 Si-0.9 Sb alloy,the heterogeneous nuclei of Mg_(3) Sb_(2) phase is the main reason for the refinement of grains and second phases.

关键词： magnesium alloy Mg-5Sn-1Si alloy Y Bi Sb Sr Mg2Si phase

Gadget Configfs的研究及在USB虚拟串口的应用

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现代电子技术 2025年第2期48卷 46-50页

作者：张怡鲍爱达郭鑫刘昕沂中北大学仪器与电子学院山西太原030051 中北大学信息与通信工程学院山西太原030051

针对Linux下通过USB Gadget框架将USB接口模拟成其他USB设备时存在设备配置信息修改不方便的问题,可以使用Configfs动态配置USB设备。文中介绍了USB Gadget的框架与原理,重点分析了Configfs的主要数据结构和内部实现机制,给出了使用Conf... 详细信息

针对Linux下通过USB Gadget框架将USB接口模拟成其他USB设备时存在设备配置信息修改不方便的问题,可以使用Configfs动态配置USB设备。文中介绍了USB Gadget的框架与原理,重点分析了Configfs的主要数据结构和内部实现机制,给出了使用Configfs在用户模式配置USB设备的具体方法,并在***6ULL平台上将Gadget功能驱动层已有的串口功能驱动程序使用Configfs进行配置后,实现了将USB接口虚拟成USB串口设备。经过测试,虚拟串口设备传输正常,为开发人员在USB Gadget下使用Configfs配置USB设备提供了参考。

关键词：虚拟串口 USB Gadget Configfs Linux 串口设备 I.MX6ULL

A Verifiable Trust-Based CP-ABE Access Control Scheme for Cloud-Assisted Renewable Energy Systems

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Computers, Materials & Continua 2025年第1期82卷 1211-1232页

作者： Jiyu Zhang Kehe Wu Ruomeng Yan Zheng Tian Yizhen Sun Yuxi Wu Yaogong guo Department of Control and Computer Engineering North China Electric Power UniversityBeijing102206China State Grid Information&Communication Company of Hunan Electric Power Corporation Changsha410118China State Grid Hunan Electric Power Corporation Chenzhou Power Supply Branch Chenzhou423000China

Renewable Energy Systems(RES)provide a sustainable solution to climate warming and environmental pollution by enhancing stability and reliability through status acquisition and analysis on cloud platforms and intelligent processing on edge servers(ES).However,securely distributing encrypted data stored in the cloud to terminals that meet decryption requirements has become a prominent research ***,managing attributes,including addition,deletion,and modification,is a crucial issue in the access control scheme for *** address these security concerns,a trust-based ciphertext-policy attribute-based encryption(CP-ABE)device access control scheme is proposed for RES(TB-CP-ABE).This scheme effectivelymanages the distribution and control of encrypted data on the cloud through robust attribute key *** introducing trust management mechanisms and outsourced decryption technology,the ES system can effectively assess and manage the trust worthiness of terminal devices,ensuring that only trusted devices can participate in data exchange and access sensitive ***,the ES system dynamically evaluates trust scores to set decryption trust thresholds,thereby regulating device data access permissions and enhancing the system’s *** validate the security of the proposed TB-CP-ABE against chosen plaintext attacks,a comprehensive formal security analysis is conducted using the widely accepted random oraclemodel under the decisional q-Bilinear Diffie-Hellman Exponent(q-BDHE)***,comparative analysis with other schemes demonstrates that the TB-CP-ABE scheme cuts energy/communication costs by 43%,and scaleswell with rising terminals,maintaining average latency below 50ms,ensuring real-time service *** proposed scheme not only provides newinsights for the secure management of RES but also lays a foundation for future secure energy solutions.

关键词： Access control renewable energy systems(RES) ciphertext-policy attribute-based encryption(CP-ABE) security

Temporal changes in the spinal cord transcriptome after peripheral nerve injury

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Neural Regeneration Research 2020年第7期15卷 1360-1367页

作者： Jian Weng Dong-Dong Li bao-guo Jiang Xiao-feng Yin Department of Orthopedics and Trauma Peking University People's HospitalBeijingChina Department of Bone&Joint Surgery Peking University Shenzhen HospitalShenzhenGuangdong ProvinceChina Department of Surgery the 517th Hospital of the People's Liberation ArmyXinzhouShanxi ProvinceChina

Peripheral nerve injury may trigger changes in mRNA levels in the spinal *** key mRNAs is important for improving repair after nerve *** study aimed to investigate changes in mRNAs in the spinal cord following sciatic nerve injury by transcriptomic *** left sciatic nerve denervation model was established in C57 BL/6 *** left L4–6 spinal cord segment was obtained at 0,1,2,4 and 8 weeks after severing the sciatic *** expression profiles were generated by RNA *** sequencing results of spinal cord mRNA at 1,2,4,and 8 weeks after severing the sciatic nerve were compared with those at 0 weeks by bioinformatic *** identified 1915 differentially expressed mRNAs in the spinal cord,of which 4,1909,and 2 were differentially expressed at 1,4,and 8 weeks after sciatic nerve injury,*** results indicated that the number of differentially expressed mRNAs in the spinal cord was highest at 4 weeks after sciatic nerve *** mRNAs were associated with the cellular response to lipid,ATP metabolism,energy coupled proton transmembrane transport,nuclear transcription factor complex,vacuolar proton-transporting V-type ATPase complex,inner mitochondrial membrane protein complex,tau protein binding,NADH dehydrogenase activity and hydrogen ion transmembrane transporter *** these mRNAs,Sgk1,Neurturin and Gpnmb took part in cell growth and *** analysis showed that these mRNAs were mainly involved in aldosterone-regulated sodium reabsorption,oxidative phosphorylation and collecting duct acid *** assessment indicated that these mRNAs were associated with inflammation and cell morphology *** findings show that the number and type of spinal cord mRNAs involved in changes at different time points after peripheral nerve injury were *** number of differentially expressed mRNAs in the spinal cord was highest at 4 weeks after sciatic nerve *** results

关键词： deep sequencing expression profile gene therapy mRNAs nerve regeneration peripheral nerve injury RNA sequencing sciatic nerve injury spinal cord transcriptome

Combination of fruquintinib with venetoclax for the treatment of colorectal cancer

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Oncology Research 2025年第1期33卷 225-234页

作者： WEI ZHANG WEICHENG WANG RUI WANG XIAO HAN LIJUN ZHU WENJIE guo YANHONG GU Department of Oncology The First Affiliated Hospital of Nanjing Medical UniversityNanjing210029China State Key Laboratory of Pharmaceutical Biotechnology School of Life SciencesNanjing UniversityNanjing210023China Department of Oncology The Affiliated Taizhou People’s Hospital of Nanjing Medical UniversityTaizhou225300China

Background:As a novel blocker of vascular endothelial growth factor receptor(VEGFR),fruquintinib has been approved for treating colorectal cancer(CRC).However,its dosage and therapeutic efficacy are limited by its widespread adverse ***,recognized as the initial inhibitor of B-cell lymphoma protein 2(BCL2),has shown potential in boosting the effectiveness of immunotherapy against *** study investigated the efficacy and mechanisms of fruquintinib combined with venetoclax in treating *** and Materials:We developed a colon cancer mouse model with the CT26 colon cell line to demonstrate fruquintinib and venetoclax’s efficacy against *** we employed various techniques to evaluate different aspects of the experimental *** was used to detect cell proliferation and angiogenesis in tumor *** blot analysis was utilized to examine the occurrence of cell apoptosis,and flow cytometry to quantitate immune cells within the tumor ***,immunofluorescence was employed to measure cytokine ***:The strongest inhibition on tumor growth was achieved by the combination of fruquintinib with venetoclax,as opposed to individual drug *** was found to amplify the impact of fruquintinib,leading to decreased cancer cell proliferation,increased cancer cell apoptosis,lowered angiogenesis,better vascular structure normalization,and improved immune cell ***:Our findings indicate that the addition of venetoclax enhances the impact of fruquintinib on vascular normalization and modulation of the tumor immune *** study presents the justification for utilizing the fruquintinib and venetoclax combination in treating *** holds promise in being assimilated into anticancer medications for CRC.

关键词： Colorectal cancer(CRC) B-cell lymphoma protein 2(BCL2) Venetoclax Vascular endothelial growth factor receptor(VEGFR) Fruquintinib Anti-angiogenesis Immunotherapy

Exosomes:the next-generation therapeutic platform for ischemic stroke

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Neural Regeneration Research 2025年第5期20卷 1221-1235页

作者： Wenjing Yin Hongyin Ma Yang Qu Jiaxin Ren Yingying Sun Zhen-Ni guo Yi Yang Stroke Center Department of NeurologyFirst Hospital of Jilin UniversityChangchunJilin ProvinceChina Neuroscience Research Center Department of NeurologyFirst Hospital of Jilin UniversityChangchunJilin ProvinceChina

Current therapeutic strategies for ischemic stroke fall short of the desired objective of neurological functional ***,there is an urgent need to develop new methods for the treatment of this *** are natural cell-derived vesicles that mediate signal transduction between cells under physiological and pathological *** have low immunogenicity,good stability,high delivery efficiency,and the ability to cross the blood–brain *** physiological properties of exosomes have the potential to lead to new breakthroughs in the treatment of ischemic *** rapid development of nanotechnology has advanced the application of engineered exosomes,which can effectively improve targeting ability,enhance therapeutic efficacy,and minimize the dosages *** in technology have also driven clinical translational research on *** this review,we describe the therapeutic effects of exosomes and their positive roles in current treatment strategies for ischemic stroke,including their antiinflammation,anti-apoptosis,autophagy-regulation,angiogenesis,neurogenesis,and glial scar formation reduction ***,it is worth noting that,despite their significant therapeutic potential,there remains a dearth of standardized characterization methods and efficient isolation techniques capable of producing highly purified *** optimization strategies should prioritize the exploration of suitable isolation techniques and the establishment of unified workflows to effectively harness exosomes for diagnostic or therapeutic applications in ischemic ***,our review aims to summarize our understanding of exosome-based treatment prospects in ischemic stroke and foster innovative ideas for the development of exosome-based therapies.

关键词： blood–brain barrier electroacupuncture engineering exercise exosomes ischemic stroke mesenchymal stem cells microglia neuroprotection stents

MAST QUADRANT可扩张管下单侧椎弓根钉置入与椎体间融合治疗腰椎退变性疾病

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中国组织工程研究与临床康复 2011年第39期15卷 7311-7314页

作者：孙郁雨崔志明保国锋李卫东徐冠华王玲玲崔颖储惊蛰南通大学第二附属医院脊柱外科江苏省南通市226001

背景:腰椎后路椎体间融合治疗腰椎退变性疾病,能够恢复椎间隙高度、维持腰椎生理前凸、提供腰椎的即刻稳定性及取得较高的椎间骨性融合率。目的:验证运用MAST QUADRANT可扩张管通道微创系统行单侧椎弓根钉置入并椎体间融合治疗腰椎退变... 详细信息

背景:腰椎后路椎体间融合治疗腰椎退变性疾病,能够恢复椎间隙高度、维持腰椎生理前凸、提供腰椎的即刻稳定性及取得较高的椎间骨性融合率。目的:验证运用MAST QUADRANT可扩张管通道微创系统行单侧椎弓根钉置入并椎体间融合治疗腰椎退变性疾病的适应证及有效性。方法:在3.0cm的微创切口内放置MAST QUADRANT可扩张管,应用单侧椎弓根钉内固定加椎体间融合治疗腰椎退变性疾病患者32例。结果与结论:患者置入内固过程中未发生硬膜囊撕裂、神经根和大血管等副损伤。随访3个月以上。置入3个月后JOA评分明显高于置入前(P<0.01),目测类比评分显著低于置入前(P<0.01)。X射线片显示椎间隙骨密度均逐渐增加,未发现椎间融合器移位、假关节、内固定松脱或折断等并发症,亦无炎症、过敏等不良反应。

关键词：微创脊柱融合术椎弓根内固定腰椎腰椎退变性疾病