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GUEST EDITORIAL

China Communications 2023年第2期 3-6页

作者： Yuan Wu Xu Chen Feng Lyu Xianfu Chen Xumin Huang Jie Gao Yueyue Dai Tony Q.S.Quek Yan Zhang the State Key Laboratory of Internet of Things for Smart City University of Macau the Department of Computer and Information Science University of Macau Sun Yat-sen University Sun Yat-sen University Institute of Advanced Networking and Computing Systems Sun Yat-sen University National and Local Joint Engineering Laboratory the School of Computer Science and Engineering Central South University the VTT Technical Research Centre of Finland the School of Automation Guangdong University of Technology the School of Information Technology Carleton University Huazhong University of Science and Technology Singapore University of Technology and Design(SUTD) the IEEE Communications Society Technical Committee on Green Communications and Computing(TCGCC)

With the growing maturity of the advanced edge-cloud collaboration and integrated sensing-communication-computing systems, edge intelligence has been envisioned as one of the enabling technologies for ubiquitous and l...

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Safe and economical preparation of amino acid-derived bio-based triazine char-forming agent for efficient intumescent flame retardant polypropylene

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Construction and Building Materials 2025年 484卷

作者： Xu, Yue Hu, Haojie Tao, Bin Yin, Ru Liu, Lubin Li, Bin Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials College of Chemistry Chemical Engineering and Resource Utilization Northeast Forestry University Harbin150040 China Key Laboratory of Bio-based Material Science and Technology Ministry of Education Northeast Forestry University Harbin150040 China National and Local Joint Engineering Laboratory for Ecological Utilization of Biological Resources Northeast Forestry University Harbin150040 China

Triazine intumescent flame retardant (IFR) PP composites have been widely used in electronic appliances, rail transit, and aerospace fields due to their low smoke, high efficiency and environmental friendliness. However, with the increasing attention to safe production and sustainable development, the green and safe synthesis and biomaterialization of traditional triazine char-forming agents have received extensive attention. Herein, a bio-based triazine char-forming agent N-propionyltriazine-ethylenediamine copolymer (PTEC) was successfully prepared by bio-based β-alanine and cyanuric chloride as raw materials under a pure water system for the first time. A novel bio-based IFR (BIFR) system was constructed with ammonium polyphosphate. Only 24 wt% BIFR make PP pass the UL-94 V-0 rating, and the LOI of PP/BIFR was improved to 29.7 %. Compared to pure PP, the smoke and heat release rate of PP/BIFR composites were decreased by 54.5 % and 76.2 %, respectively. The introduction of BIFR promoted the dehydration and charring of PP composites, and released many inert gases during pyrolysis, which led to the rapid expansion of composites. The formed dense and high-strength char layer exerted excellent shielding effect in the condensed phase. In addition, the PP/BIFR composites retained excellent mechanical properties, and the flexural strength and ductility were significantly improved with the addition of BIFR. This study provided a new way for the safe production and biomaterialization of triazine char-forming agents, and the prepared bio-based PP composites with excellent flame retardancy and mechanical properties showed a great application prospect in construction, building materials and other emerging fields. © 2025 Elsevier Ltd

关键词： Bending strength

Synergistic Effects of Kinetics and Lyophilicity Stimulated by Mg2+/Li+ Co-Insertion in Bi2-XsbXs2 Toward Reversible Hybrid Batteries

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SSRN 2024年

作者： Du, Yibo Wang, Zhitao Ma, Heping Si, Wenhui Wang, Wenlong Zhang, Wenming Yang, Hui Ying Chen, Song Hebei Key Laboratory of Optic-Electronic Information and Materials National & Local Joint Engineering Laboratory of New Energy Photoelectric Devices College of Physics Science and Technology Hebei University Baoding071002 China Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Material School of Materials Science and Engineering Henan Normal University Xinxiang453007 China Pillar of Engineering Product Development Singapore University of Technology and Design 8 Somapah Road 487372 Singapore Singapore

Co-intercalation type hybrid magnesium-lithium-ion batteries (MLIBs) have received widespread attention in recent years for higher electrolyte utilization and conspicuous insertion kinetics. However, the co-intercalation strategy is rarely explored in replaceable anode host structures. We propose a cation exchange strategy to optimize metal sulfide, endowing MLIBs with high specific capacity, prominent cycle stability and rate performance. Kinetics analyses combined with density functional theory (DFT) calculations demonstrate the preferential absorption of Mg2+/Li+ in Bi-Sb sites and fast migration kinetics induced by Mg2+/Li+ co-insertion. COMSOL Multiphysics simulations further prove the prominent lyophilic effect of the bimetallic sulfide in facilitate ion diffusion. In addition, the multi-step reaction mechanisms and structural evolutions are profoundly revealed by a series of ex-situ investigations. Our findings provide inspirations on exploring novel electrode materials with outstanding electrochemical performance toward large-scale energy storage applications. © 2024, The Authors. All rights reserved.

关键词： Lithium-ion batteries

Creep Prediction Model of Concrete-Filled Steel Tube under Different Core Concrete Conditions 3

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Creep Prediction Model of Concrete-Filled Steel Tube under D...

2021 3rd International Conference on Advanced Materials and Ecological Environment, AMEE 2021

作者： Xiong, Zeyu Zhang, Rongling Ma, Lina Hao, Zhaofeng Lv, Wenda Li, Wenbo School of Civil Engineering Lanzhou Jiaotong University Lanzhou China National and Local Joint Engineering Laboratory Road and Bridge Engineering Disaster Prevention Technology Lanzhou Jiaotong University Lanzhou China Lanzhou Railway Design Institute Co. Ltd. Lanzhou China

To reasonably predict the creep law of concrete-filled steel tubular (CFST) members under different working conditions, four groups of creep tests were carried out, and the creep curves of CFST specimens with defects were obtained. Based on the creep prediction formula given in the code for the design of CFST highway arch bridges issued in 2015, the creep prediction models of CFST under different core concrete conditions are studied. The results show that the concrete microcracks around the cavity defects are continuously generated and expanded during the compression process, resulting in the dislocation and sliding of the concrete. It increases the additional deformation of CFST;debonding defects hinder the redistribution of stress between the steel tube and the core concrete, weaken the interaction effect between the steel tube and the concrete, and increase the creep deformation of the core concrete. According to Different core concrete states, appropriate reference factors are selected to modify the creep prediction formula of CFST, which greatly improves the creep prediction accuracy of CFST members and defective members. © Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.

关键词： Creep

Mixing homogeneity of cement-stabilized macadam and its influence mechanism on road performance 56

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Mixing homogeneity of cement-stabilized macadam and its infl...

56th International Conference on Vibroengineering

作者： Tian, Ming Xiong, Chaobo Chen, Wei Zhou, You Liu, Bin Yunnan Dayong Expressway Construction Command Dali China China Merchants Chongqing Communications Research and Design Institute Road and Geotechnical Engineering Institute Chongqing China National Local Joint Engineering Laboratory for Road Engineering and Disaster Prevention and Reduction Technology in Mountainous Areas Chongqing China Chang’an University Highway School Shanxi Xi’an710064 China Zunyi Highway Administration Bureau of Guizhou Guizhou Zunyi563099 China

To study the effects of different mixing processes on the mixing uniformity of cement-stabilized macadam, three mixing processes, namely, ordinary static mixing, vibratory mixing and vibratory machine off-vibration mixing, are compared and studied by visual identification, coarse aggregate distribution statistics in core sample section, mixture sieving and cement dosage titration. The results show that the cement slurry produced by the vibratory mixing process has the best adhesion effect on coarse aggregate, and its variability in the number of coarse aggregate distribution in the core sample section, the key sieve passing rate of the aggregate and variability of cement dosage titration are the lowest. In conclusion, vibratory mixing can improve the homogeneity of cement-stabilized macadam, thus improve internal friction resistance and cohesion of the mixture, and enhance the road performance. Copyright © 2022 Ming Tian, et al.

关键词： Titration

Sulfated Modification, Structural Features, and Anti-Tumor Effects of Polysaccharides from Medicago Sativa L. Stems

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SSRN 2024年

作者： Lu, Xixi Xu, Shuangshuang Liu, Xuegui Gao, Pinyi Li, Danqi College of Chemical Engineering Shenyang University of Chemical Technology Shenyang110142 China Shenyang Institute of Science and Technology Shenyang110166 China Institute of Functional Molecules Shenyang University of Chemical Technology Shenyang110142 China National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology Shenyang University of Chemical Technology Shenyang110142 China Liaoning Province Key Laboratory of Green Functional Molecular Design and Development Shenyang University of Chemical Technology Shenyang110142 China

Background: Alfalfa (Medicago sativa L.), extensively cultivated in diverse regions, holds significant industrial importance due to its high yield and nutritional value. A wide range of activities has been reported for alfalfa polysaccharides, while the biological effects are often limited due to their high molecular weight and poor water solubility. Results: The study successfully sulfated water-soluble polysaccharide (APS) isolated from alfalfa stems using the chlorosulfonic acid-pyridine (CSA-Pyr) method under three distinct reaction conditions, yielding sulfation derivatives (SAPS-1, SAPS-2 and SAPS-3). The structural characteristics of APS and SAPSs were investigated through high-performance gel permeation chromatography (HPGPC), nuclear magnetic resonance spectrum (NMR), fourier transform infrared spectrum (FT-IR), and scanning electron microscope (SEM). The spectroscopic data revealed effective sulfation of APS. The molecular weights of SAPSs decreased as the degrees of substitution (DS) increased ranging from 0.10 to 0.23. In vitro activity experiments indicated that SAPSs exhibited superior anti-tumor effects compared to APS. Notably, among the three sulfated derivatives, SAPS-3 demonstrated the most potent inhibitory capacity against Hep3B cells. Conclusion: These findings underscore the efficacy of the CSA-Pyr method in enhancing anti-tumor activity, so that SAPSs can be used as a potential anti-tumor agent, providing a theoretical basis for clinical applications. Therefore, the successful utilization of alfalfa stems resources, with improved application potential for industrial and biomedical purposes, is anticipated through the development of sulfated derivatives. © 2024, The Authors. All rights reserved.

关键词： Polysaccharides

Development of Novel Ionic Covalent Organic Frameworks Composite Nanofiltration Membranes for Dye/Salt Separation

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SSRN 2023年

作者： Miao, Qiuyu Wang, Ying Chen, Dongru Cao, Ning Pang, Jinhui Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials College of Chemistry Chemical Engineering and Resource Utilization Northeast Forestry University Harbin150040 China Ministry of Education National & Local Joint Engineering Laboratory for Synthesis Technology of High-Performance Polymer College of Chemistry Jilin University Changchun130012 China

Covalent organic frameworks (COF) have desirable properties such as high porosity, low mass density, excellent heat resistance and regulatable structure, making them an ideal candidate for membrane material. The traditional methods for preparing COF composite membranes, such as interfacial polymerization, vacuum filtration, and abrasive coating, have some problems such as poor mechanical properties. Here, we fabricated high performance COF composite membranes by modified casting-precipitation-evaporation method. The designed composite membranes consisted of the ionic COF (iCOF) selective layer and the support layer are applied in dye desalination. The high permeability (~68 L h-1 m-2 bar-1), high dyes rejection (97% for RB), and low salts rejection (~ 2.86% for NaCl) are achieved by the iCOF functional layer. The as-prepared composite membranes have a hydrophilic and highly smooth surface, making them have good anti-fouling performance. In addition, the rigid pore structure of iCOF selective layer endows the composite membranes with excellent stability, the composite membranes maintain original structure under high pressure (6 bar) and ultrasonic treatment (16 kHz for 60 min). This work may open up a novel path to fabricate iCOF composite membranes, which exhibit great potential in dye desalination. © 2023, The Authors. All rights reserved.

关键词： Composite membranes

Anti-atherosclerotic effects and molecular targets of ginkgolide B from Ginkgo biloba

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Acta Pharmaceutica Sinica B 2024年第1期14卷 1-19页

作者： Weile Ye Jiaojiao Wang Peter JLittle Jiami Zou Zhihua Zheng Jing Lu Yanjun Yin Hao Liu Dongmei Zhang Peiqing Liu Suowen Xu Wencai Ye Zhiping Liu International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education(MOE)of China Jinan UniversityGuangzhou 510632China Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research College of PharmacyJinan UniversityGuangzhou 510632China State Key Laboratory of Bioactive Molecules and Druggability Assessment Jinan UniversityGuangzhou 510632China Pharmacy Australia Centre of Excellence School of PharmacyUniversity of QueenslandWoolloongabba QLD 4102Australia Sunshine Coast Health Institute and School of Health and Behavioural Sciences University of the Sunshine CoastBirtinya QLD 4575Australia National-Local Joint Engineering Lab of Druggability and New Drugs Evaluation Guangdong Provincial Key Laboratory of New Drug Design and EvaluationSun Yat-sen UniversityGuangzhou 510006China School of Pharmacy Bengbu Medical CollegeBengbu 233030China Institute of Endocrine and Metabolic Diseases the First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China

Bioactive compounds derived from herbal medicinal plants modulate various therapeutic targets and signaling pathways associated with cardiovascular diseases(CVDs),the world’s primary cause of *** biloba,a well-known traditional Chinese medicine with notable cardiovascular actions,has been used as a cardio-and cerebrovascular therapeutic drug and nutraceutical in Asian countries for *** studies have shown that ginkgolide B,a bioactive component in Ginkgo biloba,can ameliorate atherosclerosis in cultured vascular cells and disease *** clinical relevance,several clinical trials are ongoing or being completed to examine the efficacy and safety of ginkgolide B-related drug preparations in the prevention of cerebrovascular diseases,such as ischemia ***,we present a comprehensive review of the pharmacological activities,pharmacokinetic characteristics,and mechanisms of action of ginkgolide B in atherosclerosis prevention and *** highlight new molecular targets of ginkgolide B,including nicotinamide adenine dinucleotide phosphate oxidases(NADPH oxidase),lectin-like oxidized LDL receptor-1(LOX-1),sirtuin 1(SIRT1),platelet-activating factor(PAF),proprotein convertase subtilisin/kexin type 9(PCSK9)and ***,we provide an overview and discussion of the therapeutic potential of ginkgolide B and highlight the future perspective of developing ginkgolide B as an effective therapeutic agent for treating atherosclerosis.

关键词： Cardiovascular disease Atherosclerosis Ginkgo biloba Ginkgolide B Endothelial dysfunction LOX-1 PCSK9 PAF-R antagonist

Development of Novel Ionic Covalent Organic Frameworks Composite Nanofiltration Membranes for Dye/Salt Separation

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SSRN 2023年

Covalent organic frameworks (COF) have desirable properties such as high porosity, low mass density, excellent heat resistance and regulatable structure, making them an ideal candidate for membrane material. Traditional methods for preparing covalent organic framework composite membranes, such as interfacial polymerization, vacuum filtration, and covalent organic framework abrasive coating. Stand-alone COF membranes produced by the above methods usually suffer from problems such as poor mechanical properties. Here, we fabricated high performance COF composite membranes by modified casting-precipitation-evaporation method. The designed composite membranes consisted of the ionic COF (iCOF) selective layer and the support layer are applied in dye/salt separation. The high permeability (~68 L h-1 m-2 bar-1), high dyes rejection (97% for Rose Bengal), and low salts rejection (~2.86% for NaCl) are achieved by the iCOF layer. The as-prepared composite membranes have a hydrophilic and highly smooth surface, making them have good anti-fouling performance. In addition, the rigid pore structure of iCOF selective layer endows the composite membranes with excellent stability, the composite membranes maintain original structure under high pressure (6 bar) and ultrasonic treatment (16 kHz for 60 min). This work may open up a novel path to fabricate iCOF composite membranes, which exhibit great potential in dye/salt separation. © 2023, The Authors. All rights reserved.

关键词： Sodium chloride