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Journal of Materials Science & Technology 2023年第3期134卷 132-141页

作者： Hui-Ya Wang Xiao-Bo Sun Yue Xin shu-hao yang Peng-Fei Hu Guang-Sheng Wang School of Chemistry Beihang UniversityBeijing 102206China Research Institute of Aero-Engine Beihang UniversityBeijing 102206China

Lightweight and high-efficiency absorbing materials equipped with tunable electromagnetic properties are the foremost important factors for driving applications of 5 G smart era and military ***-ulated by the remarkable merits of heterogeneous interface engineering,a series of unique flower-like Co-based multiphases nanostructures were successfully synthesized through identical hydrothermal method,and subsequently anchored on the Ti_(3)C_(2)T_(x)*** suitable metal ion modulation is feasible to regulate the components,heterogeneous interfaces and defects for tailoring the electromag-netic parameters and microwave absorption(MA)***,the permittivity decreases of CMOT(CoO/MCo_(2)O_(4)/Ti_(3)C_(2)T_(x),M=Fe,Cu,Zn)composites proceed gradually in the order of Fe^(2+),Cu^(2+),Zn^(2+),while the MA performance with tunable absorption peak could be modulated *** asobtained CFOT-12(10 wt%),CCOT-15(10 wt%)and CZOT-15(15 wt%)exhibit excellent MA capacity with a minimum reflection loss(RL_(min))of-41.06,-52.67,-52.52 dB and corresponding effective absorption bandwidth(EAB)of 3.68,4.48,3.92 GHz at 2.10,1.90,1.80 mm,*** work expands a novel approach to construct multicomponent heterostructure for tuning the EM parameters and absorbing property,as well as realize the high efficient and light weight.

关键词： Heterogeneous interface Modulation MXene High-efficiency absorbing materials Lightweight

3D Ultralight Hollow NiCo Compound@MXene Composites for Tunable and High-E cient Microwave Absorption

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Nano-Micro Letters 2021年第12期13卷 322-336页

作者： Hui-Ya Wang Xiao-Bo Sun shu-hao yang Pei-Yan Zhao Xiao-Juan Zhang Guang-Sheng Wang Yi Huang School of Chemistry Beihang UniversityBeijing 100191People’s Republic of China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048People’s Republic of China School of Materials Science and Engineering Nankai UniversityTianjin 300350People’s Republic of China

The 3D hollow hierarchi-cal architectures tend to be designed for inhibiting stack of MXene flakes to obtain satisfactory lightweight,high-e cient and broadband ***,the hollow NiCo compound@MXene networks were prepared by etching the ZIF 67 template and subsequently anchoring the Ti_(3)C_(2)Tx nanosheets through electrostatic *** electromagnetic parameters and microwave absorption property can be distinctly or slightly regulated by adjusting the filler loading and decoration of Ti_(3)C_(2)Tx *** on the synergistic e ectsof multi-components and special well-constructed structure,NiCo layered double hydroxides@Ti_(3)C_(2)Tx(LDHT-9)absorber remarkably achieves unexpected e ective absorption bandwidth(EAB)of 6.72 GHz with a thickness of 2.10 mm,covering the entire *** calcination,transition metal oxide@Ti_(3)C_(2)Tx(TMOT-21)absorber near the percolation threshold possesses minimum reflection loss(RLmin)value of-67.22 dB at 1.70 mm within a filler loading of only 5 wt%.This work enlightens a simple strategy for constructing MXene-based composites to achieve high-e cient microwave absorbents with lightweight and tunable EAB.

关键词： 3D hollow hierarchical architecture Tunable EAB High-performance microwave absorption Ultralight

Designing Symmetric Gradient Honeycomb Structures with Carbon‑Coated Iron‑Based Composites for High‑Efficiency Microwave Absorption

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Nano-Micro Letters 2024年第11期16卷 224-241页

作者： Yu Zhang shu‑hao yang Yue Xin Bo Cai Peng‑Fei Hu Hai‑yang Dai Chen‑Ming Liang Yun‑Tong Meng Ji‑hao Su Xiao‑Juan Zhang Min Lu Guang‑Sheng Wang School of Chemistry Beihang UniversityBeijing 100191People’s Republic of China School of Electronics and Information Zhengzhou University of Light IndustryZhengzhou 450002People’s Republic of China School of Chemical Engineering Northeast Electric Power UniversityJilin 132000People’s Republic of China College of Chemistry and Materials Engineering Beijing Technology and Business UniversityBeijing 100048People’s Republic of China

The impedance matching of absorbers is a vital factor affecting their microwave absorption(MA)*** this work,we controllably synthesized Material of Institute Lavoisier 88C(MIL-88C)with varying aspect ratios(AR)as a precursor by regulating oil bath conditions,followed by one-step thermal decomposition to obtain carbon-coated iron-based *** the precursor MIL-88C(Fe)preparation conditions,such as the molar ratio between metal ions and organic ligands(M/O),oil bath temperature,and oil bath time,influenced the phases,graphitization degree,and AR of the derivatives,enabling low filler loading,achieving well-matched impedance,and ensuring outstanding MA *** MOF-derivatives 2(MD_(2))/polyvinylidene Difluoride(PVDF),MD_(3)/PVDF,and MD4/PVDF absorbers all exhibited excellent MA properties with optimal filler loadings below 20 wt%and as low as 5 wt%.The MD_(2)/PVDF(5 wt%)achieved a maximum effective absorption bandwidth(EAB)of 5.52 GHz(1.90 mm).The MD_(3)/PVDF(10 wt%)possessed a minimum reflection loss(RL_(min))value of−67.4 at 12.56 GHz(2.13 mm).A symmetric gradient honeycomb structure(SGHS)was constructed utilizing the high-frequency structure simulator(HFSS)to further extend the EAB,achieving an EAB of 14.6 GHz and a RL_(min) of−59.0 *** research offers a viable inspiration to creating structures or materials with high-efficiency MA properties.

关键词： MIL-88C(Fe) Fe/Fe_(3)O_(4)/Fe_(3)C@C Controllable preparation Symmetric gradient honeycomb structure Microwave absorbing

A cellulose-based lithium-ion battery separator with regulated ionic transport and high thermal stability for extreme environments

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Nano Research 2025年第1期18卷 315-322页

作者： Kun-Peng yang Song Xie Zi-Meng Han hao-Cheng Liu Chong-Han Yin Wen-Bin Sun Zhang-Chi Ling Huai-Bin yang De-Han Li Qing-Fang Guan shu-Hong Yu Department of Chemistry New Cornerstone Science LaboratoryInstitute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Institute of Innovative Materials Department of Materials Science and EngineeringDepartment of ChemistrySouthern University of Science and TechnologyShenzhen 518055China

Separators play a critical role in lithium-ion ***,the restrictions of thermal stability and inferior electrical performance in commercial polyolefin separators significantly limit their applications under harsh ***,we report a cellulose-assisted self-assembly strategy to construct a cellulose-based separator massively and *** an ultrahigh ionic conductivity in electrolytes of 3.7 mS·cm^(-1) and the ability to regulate ion transport,the obtained separator is a promising alternative for high-performance lithium-ion *** addition,integrated with high thermal stability,the cellulose-based separator endows batteries with high safety at high temperatures,greatly expanding the application scenarios of energy storage devices in extreme environments.

关键词： lithium-ion batteries bio-inspired materials battery separators cellulose nanofiber ultrahigh ionic conductivity high safety

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基于乌龙江大桥的预应力配筋方案优化研究

河南科学 2016年第11期34卷 1863-1868页

作者：舒彬郝付军杨敏陕西铁路工程职业技术学院陕西渭南714000 长安大学西安710000 云南省公路科学技术研究院昆明650051

多跨度连续箱梁桥采用水平向直线预应力筋和竖向预应力筋相结合,取消下弯筋,施工方便;但竖向预应力筋较短,预应力损失较大,主拉应力实际上不能完全抵消,腹板斜截面容易出现裂缝,影响结构的正常使用.曲线预应力筋较长,后期预应力损失较小... 详细信息

多跨度连续箱梁桥采用水平向直线预应力筋和竖向预应力筋相结合,取消下弯筋,施工方便;但竖向预应力筋较短,预应力损失较大,主拉应力实际上不能完全抵消,腹板斜截面容易出现裂缝,影响结构的正常使用.曲线预应力筋较长,后期预应力损失较小.乌龙江大桥采用了主要依靠曲线预应力抵抗主拉应力和竖向预应力作为安全储备的配筋方式,大桥实测和分析表明其有效预应力可靠性高,在设计中应加以推广.

关键词：腹板斜裂缝主拉应力竖向预应力筋水平直线预应力筋曲线预应力筋

Biomedical titanium alloys and their additive manufacturing

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Rare Metals 2016年第9期35卷 661-671页

作者： Yu-Lin hao shu-Jun Li Rui yang Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences

Titanium and its alloys have been widely used for biomedical applications due to their better biomechanical and biochemical compatibility than other metallic materials such as stainless steels and Co-based alloys.A brief review on the development of the b-type titanium alloys with high strength and low elastic modulus is given and the use of additive manufacturing technologies to produce porous titanium alloy parts,using Ti-6Al-4V as a reference,and its potential in fabricating biomedica replacements are discussed in this paper.

关键词： Beta titanium alloys High strength Low elastic modulus Additive manufacturing Biomedical application

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期 300-302页

作者： Ze-Min Lin Mai Xiang Wen-Hui Wei shu-Hui Fan Li Chen Jie Wang Xiao-Qian yang Chun-hao yang Shi-Jun He Jian-Ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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An overview of biofuel power generation on policies and finance environment,applied biofuels,device and performance

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第4期8卷 534-553页

作者： yang yang Zhilin Tian Yuanfeng Lan shu Wang hao Chen School of Automobile Chang'an UniversityXi'an 710064China ETEC Department&MOBI Research Group Vrije Universiteit BrusselBrussel 1050Belgium

The prices of fossil fuels,the gap between energy supply and demand,energy security,environmental issues,and the reduction of greenhouse gas emissions commonly promote the development of biomass power generation in *** to direct biomass combustion power generation and biogas power generation,liquid biofuel power generation has better application *** and finance environment of countries and organizations have promoted the extensive application of biofuel power generation in recent years,especially in *** of internal combustion engine,gas turbine and fuel cell on the stationary power station and mobile generation shows that gas turbine is the main generator-set,the fuel cell is the fastest-growing and future generator-set,while the engine is the first choice in transport and low power generation *** the second,third and fourth generation biofuels,biomethanol,bioethanol,biodiesel and others have been researched and widely used in power *** addition,power generation performance and emissions have been improved to some extent after biofuels *** the future,combined heat and power(CHP)generation and integrated gasification combined cycle(IGCC)is imperative development trends of power generation for higher energy and exergy *** based on the various generating facilities will be the next choice and direction of energy use trends for transport.

关键词： Biofuel Biomass liquid fuel Power generation Emission

Effect of flue gas recirculation technology on soot and NO formation in the biomass pyrolysis-combustion system

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Science China(Technological Sciences) 2023年第4期66卷 945-955页

作者： yang Yu ZHENG shu HE YuZhen LIU hao LU Qiang National Engineering Research Center of New Energy Power Generation North China Electric Power UniversityBeijing 102206China

Pyrolysis of biomass followed by combustion of pyrolytic vapors to replace fossil fuels is an economic low-carbon ***,the polycyclic aromatic hydrocarbons and N-containing species in biomass pyrolysis vapors result in the soot and NO *** flue gas recirculation(FGR)technology,having the potential to reduce the soot and NO emissions,was introduced to the biomass pyrolysis-combustion *** addition,it was numerically studied by simulating the biomass pyrolysis vapors based co-flow diffusion flames with CO_(2)*** the experimental and simulated results showed that the FGR had significant suppression effects on the soot *** the FGR ratio(i.e.,CO_(2)addition ratio)increased from 0%to 15%,the experimental and simulated soot volume fraction respectively decreased by 32%and 21%,which verified the models used in this *** decrease in OH concentration caused by the CO_(2)addition was responsible for the decrease in the decomposition rate of A2(A2+OH=A2–+H_(2)O).Hence,more benzo(ghi)fluoranthene(BGHIF)was generated through A1C_(2)H–+A2→BGHIF+H_(2)+H,leading to the increase in inception *** decrease in benzo(a)pyrene(BAPYR)concentration was the major factor in the decrease in soot condensation ***,the decrease in the C_(2)H_(2) and OH concentrations was responsible for the decrease in the HACA surface growth ***,the simulated results showed that the NO concentration decreased by 0.4%when the content of CO_(2)was increased by 1 vol.%.The decrease in OH concentration suppressed the NO formation via decreasing reaction rates of N+OH=NO+H and HNO+OH=NO+H_(2)O and enhanced the NO consumption via increasing reaction rate of HO_(2)+NO=NO_(2)+OH.

关键词： biomass pyrolysis vapors biomass pyrolysis-combustion system flue gas recirculation NO emission soot reduction

A constitutive model incorporating particle breakage for gravelly soil-structure interface under cyclic loading

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Science China(Technological Sciences) 2022年第12期65卷 2846-2855页

作者： CUI hao XIAO yang shu ShanZhi HE Xiang LIU HanLong School of Civil Engineering Chongqing UniversityChongqing 400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityChongqing 400045China Kiewit 10055 Trainstation CircleLone TreeCO 80124USA

Under cyclic loading,particle breakage occurs at gravelly soil-structure interface,resulting in the decrease of interface strength and the increase of normal *** on the theory of critical state soil mechanics,the modified Cam-Clay model(MCC)was extended to the plane strain condition of the interface,the state parameter was introduced and the influence of particle breakage on the critical state line was considered,and the cyclic constitutive model for gravelly soil-structure interface considering particle breakage was established by using the non-associated flow ***,the established cyclic constitutive model was used to simulate large-scale cycle direct shear tests of Zipingpu rockfill-steel interface and Zipingpu rockfill-concrete interface under constant normal load(CNL)and constant normal stiffness(CNS),*** simulation results show that under the CNL cyclic loading path,there is little difference between the cyclic shear stress considering particle breakage and that without particle breakage,but the normal displacement considering particle breakage is larger than that without particle breakage,and the difference increases with the increasing number of cycles and normal stress;Under the CNS cyclic loading path,with the increase of the number of cycles,the cyclic shear stress and cyclic normal stress considering particle breakage is significantly smaller than that without particle breakage,and the shear contraction of normal displacement becomes more *** general,the simulation results are closer to the experimental results when particle breakage is considered.

关键词： gravelly soil-structure interface particle breakage cyclic loading constitutive model