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Nanograded artificial nacre with efficient Energy dissipation

The Innovation 2023年第6期4卷 76-82页

作者： Yu-Feng Meng Cheng-Xin Yu Li-Chuan Zhou Li-Mei Shang Bo Yang Qing-Yue Wang Xiang-Sen Meng Li-Bo Mao Shu-Hong Yu Department of Chemistr New Comerstone 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 Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and NanotechnologyCAS Center for Excellence in NanoscienceInstitute of Solid State PhysicsChinese Academy of SciencesHefei 230031China Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China School of Mechanical Engineering Hefei University of TechnologyHefei 230009China Institute of Innovative Materials Department of Materials Science and EngineeringDepatment of ChemistrySouthem University of Science and TechnologyShenzhen 518055China

The renowned mechanical performance of biological ceramics can beattributed to their hierarchical structures,wherein structural features atthe nanoscale play a crucial role.However,nanoscale features,such asnanogradients,have rarely been incorporated in biomimetic ceramicsbecause of the challenges in simultaneously controlling the materialstructure at multiple length scales.Here,we report the fabrication of artificial nacre with graphene oxide nanogradients in its aragonite plateletsthrough a matrix-directed mineralization method.The gradients areformed via the spontaneous accumulation of graphene oxide nanosheetson the surface of the platelets during the mineralization process,whichthen induces a lateral residual stress field in the platelets.Nanoindentation tests and mercury intrusion porosimetry demonstrate that the material's Energy dissipation is enhanced both intrinsically and extrinsicallythrough the compressive stress near the platelet surface.The Energydissipation density reaches 0.159±0.007 nJ/μm^(3),and the toughnessamplification is superior to that of the most advanced cer amics.Numer-ical simulations also agree with the finding that the stress field not ablycontributes to the overall Energy dissipation.This work demonstratesthat the Energy dissipation of biomimetic ceramics can be furtherincreased by integrating design principles spanning multiple scales.This strategy can be readily extended to the combinations of other struc-tural models for the design and fabrication of structural ceramics withcustomized and optimized performance.

关键词： ceramics artificial Energy

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Mobile Energy storage technologies for boosting carbon neutrality

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The Innovation 2023年第6期4卷 132-151页

作者： Chenyang Zhang Ying Yang Xuan Liu Minglei Mao Kanghua Li Qing Li Guangzu Zhang Chengliang Wang School of Integrated Circuits Wuhan National Laboratory for Optoelectronics(WNL 0)Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Wenzhou Advanced Manufacturing Institute Huazhong University of Science and TechnologyWenzhou 325035China

Carbon neutrality calls for renewable energies,and the efficient use of renewable energies requires Energy storage mediums that enable the storage of excess Energy and reuse after spatiotemporal reallocation.Compared with traditional Energy storage technologies,mobile Energy storage technologies have the merits of low cost and high Energy conversion efficiency,can be flexibly located,and cover a largerange from miniature to large systems and from high Energy density to high power density,although most of them still face challenges or technical bottlenecks.In this review,we provide an overview of the opportunities and challenges of these emerging Energy storagetechnologies(induding rechargeable batteries,fuel cells,and electrochemical and dielectric capacitors).Innovative materials,strategies,and technologies are highlighted.Finally,the future directions are envisioned.We hope this review will advance the development of mobile Energy storage technologies and boost carbon neutrality.

关键词： neutral boosting Energy

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Comparison of the meat quality and fatty acid profile of muscles in finishing Xiangcun Black pigs fed varied dietary Energy levels

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Animal Nutrition 2022年第4期11卷 15-24页

作者： Can Yang Wenlong Wang Xiaowu Tang Ruilin Huang Fengna Li Wenxuan Su Yulong Yin Chaoyue Wen Jian Liu College of Life Sciences and Environment Hunan Provincial Key Laboratory of Biological Resources Protection and Utilization in Nanyue Mountain AreaHengyang Normal UniversityHengyangHunan 421008China Key Laboratory of Agro-ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of ScienceChangsh1Hunan 410125China Hunan International Joint Laboratory of Animal Intestinal Ecology and Health Hunan Normal UniversityChangshaHunan 410081China College of Bioengineering Hunan Vocational Technical College of Environment and BiologyHengyangHunan 421005China Key Laboratory of Animal Feed and Nutrition of Zhejiang Province College of Animal SciencesZhejiang UniversityHangzhou 310058China Xiangcun High-technology Agricultural Co.LTD LoudiHunan 417000China

To study the effects of dietary Energy level on the meat quality of different muscles in finishing pigs,400Xiangcun Black pigs(BW=79.55±4.77 kg)were randomly assigned to 5 treatments with varied calculated digestive Energy(DE)at 3,050,3,100,3,150,3,200 and 3,250 kcal/kg,respectively.Each treatment had 8replicates with 10 pigs per replicate.Meat quality,amino acid and fatty acid composition were tested in this study.No differences in average daily gain,average daily feed intake or feed-to-gain ratio(P>0.05)were observed among dietary treatments.Glycogen concentrations of longissimus dorsi(LD)muscle in DE3150was higher than those in other groups(PEnergy level increased in BF muscle(PEnergy for 4 consecutive weeks did not affect growth performance of Xiangcun Black pigs.Furthermore,LD and BF muscle respond differently to dietary Energy level,and meat quality was improved by the medium Energy level during the finishing phase.

关键词： Energy Growth performance Fatty acid Myofibrillar morphology Muscle

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Novel Energy recovery from an integrated municipal solid waste and leachate treatment system

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Waste Disposal and Sustainable Energy 2024年第1期6卷 53-61页

作者： Siti Salwa Khamis Hadi Purwanto Hamzah Mohd Salleh Alya Naili Rozhan Mohamed Abdur Rahman Mahammadsalman Warimani Noor Alam Faculty of Engineering International Islamic University MalaysiaJalan Gombak53100Kuala LumpurMalaysia Department of Engineering Management Universitas Internasional Semen IndonesiaGresikIndonesia Halalan Thayyiban Research Centre Sultan Sharif Ali Islamic UniversityBandar Seri BegawanBrunei Department of Mechanical Engineering P.A.College of EngineeringMangaloreKarnataka574153India Department of Mechanical Engineering Malaysia-Japan International Institute of TechnologyUniversity of Technology Malaysia54100Kuala LumpurMalaysia

Population growth,waste generation,and massive waste mismanagement have led to environmental catastrophe.Management of municipal solid waste(MSW)requires an efficient and sustainable integrated system.The integrated thermal processing of MSW is one of the best waste management techniques.In this study,Energy analysis of MSW is carried out based on the material and Energy balance of 2000 kg wet MSW,which contains 50%leachate.Once the leachate is removed,the dry MSW is sent for carbon content enhancement in carbonization to produce MSW-based char.Thereafter,the combustion of MSW-based char provided high heat and syngas to be used in a hydrothermal process for MSW leachate treatment.The result shows that the char fuel of MSW produces a sufficient amount of Energy,13501.29 MJ(84.55%),in the form of synthetic gas by-product,which has a big potential as an Energy source.The novelty of the proposed integrated thermal system is to produce 84.55%synthetic gas by-product,which is used for electricity production,cooking,food,and heat Energy for industrial purposes.The proposed applications of this paper offer insightful information for policymaking regarding novel MSW techniques,which are economical,Energy-efficient,and environmentally friendly.Thus,it increases the effectiveness of MSW utilization.

关键词： Energy Carbonization Hydrothermal Municipal solid waste Integrated system

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Dynamics and synchronization of neural models with memristive membranes under Energy coupling

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Chinese Physics B 2024年第5期33卷 316-322页

作者：万婧玥吴富强马军汪文帅 School of Mathematics and Statistics Ningxia UniversityYinchuan 750021China Ningxia Basic Science Research Center of Mathematics Ningxia UniversityYinchuan 750021China Department of Physics Lanzhou University of TechnologyLanzhou 730050China

Dynamical modeling of neural systems plays an important role in explaining and predicting some features of biophysical mechanisms.The electrophysiological environment inside and outside of the nerve cell is different.Due to the continuous and periodical properties of electromagnetic fields in the cell during its operation,electronic components involving two capacitors and a memristor are effective in mimicking these physical features.In this paper,a neural circuit is reconstructed by two capacitors connected by a memristor with periodical mem-conductance.It is found that the memristive neural circuit can present abundant firing patterns without stimulus.The Hamilton Energy function is deduced using the Helmholtz theorem.Further,a neuronal network consisting of memristive neurons is proposed by introducing Energy coupling.The controllability and flexibility of parameters give the model the ability to describe the dynamics and synchronization behavior of the system.

关键词： memristor neuronal model Energy synchronization

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Bond Energy enabled amine distinguishing strategy:chemo-,regioselective 1,3-diamination of(trifluoromethyl)alkenes with different amines by two C(sp^(3))-F bond cleavages

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Organic Chemistry Frontiers 2022年第5期9卷 1383-1388页

作者： Hao Zeng Hengyuan Li Chengxi Li Huanfeng Jiang Chuanle Zhu School of Chemistry and Chemical Engineering Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510640China

The methods to distinguish between amines are rarely investigated.In this article,a bond Energy enabled amine distinguishing strategy is reported.With(trifluoromethyl)alkenes as linchpins,a chemo-,regio-selective thre... 详细信息

关键词： amines alkenes Energy

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Modulating sparks in a pulse train for repetitive and Energy efficient plasma generation

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High Voltage 2023年第6期8卷 1168-1179页

作者： Bo Yin Yifei Zhu Yun Wu Institute of Aero‐Engine School of Mechanical EngineeringXi'an Jiaotong UniversityXi'anChina School of Electrical Engineering Xi'an Jiaotong UniversityXi'anChina Science and Technology of Plasma Dynamics Laboratory Airforce Engineering UniversityXi'anChina

Spark is a widely studied plasma source for active species production;however,it ex-periences unstable transitions(e.***.to a thermal arc)at high frequencies or long pulse durations.In this study,the sparks generated in a pulse train were studied and modulated based on a physics‐corrected deep learning method.Our results show that a highly repeatable and stable spark plasma source can be achieved by automatically adjusting the voltage amplitude according to the discharge frequency in a high‐frequency pulse train within the time scale of the fluid response.The influences of the electron number density increasing mode and modulated driven voltage profiles on the Energy efficiencies were also studied.

关键词： Spark pulse Energy

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Energy,exergy,economic and environmental comprehensive analysis and multi-objective optimization of a sustainable zero liquid discharge integrated process for fixed-bed coal gasification wastewater

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Chinese Journal of Chemical Engineering 2023年第6期58卷 341-354页

作者： Yanli Zhang Zhengkun Hou Dong Yao Xiaomin Qiu Hongru Zhang Peizhe Cui Yinglong Wang Jun Gao Zhaoyou Zhu Limei Zhong College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China

For a long time,China's regional water resource imbalance has restricted the development of coal chemical industry,and it is imperative to achieve zero liquid discharge(ZLD).Therefore,the game relationship between technical indicators,costs and emissions in ZLD process of fixed-bed coal gasification wastewater treatment process should be explored in detail.According to the accurate model,the simulation for ZLD of fixed-bed coal gasification wastewater treatment process is established,and this process is assessed from the perspective of thermodynamics,economy,and environment.The total Energy consumption of ZLD process before optimization is 4.032×10^(8)W.The results of exergy analysis show exergy destruction of ZLD process is 94.55%.For economic and environmental results,the total annual cost is 1.892×10^(7)USD·a^(-1)and the total environmental impact is 4.782×10^(-8).The total Energy consumption of the optimal six-step ZLD process based on multi-objective optimization is 4.028×10^(8)W.The CO_(2)content in the treated wastewater is 0.1%.This study will have an important role in promoting the establishment of the ZLD process for coal chemistry industry.

关键词： Waste water Case study Energy Exergy Economy Environment

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Electromagnetic protection strategy using adaptive Energy selective mechanism

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The Innovation 2023年第6期4卷 27-29页

作者： Peiguo Liu Hanqing Liu College of Electronic Science National University of Defense TechnologyChangsha 410073China Department of Precision and Microsystems Engineering Delft University of Technology2628CD Delft the Netherlands

Electromagnetic spaces face growing threats from both naturally occurring and artificial electromagnetic pulses;however,the current protection methodologies are still far from practical needs.To address this issue,we propose an electromagnetic protection strategy that makes use of an adaptive Energy selective mechanism.This strategy,carried out using electromag-netic metamaterials,provides in-band protection to electronic equipment with a high tolerance threshold and fast response.We propose several approaches to further enhance the protective performance of electromagnetic metamaterials.These include reconfigurable designs based on digital circuits and deep learning algorithms,as well as the adoption of nanoscale field-controlled devices made of two-dimensional(2D)phase transition materials and nanoelectromechanical systems.Our study can not only lead to a comprehensive protection sy stem with superior compatibility,but also offer reliable support for maintaining electromagnetic spatial security.

关键词： Electromagnetic selective Energy

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Research on vibration Energy harvesting technology of power equipment based on alternating magnet array

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High Voltage 2024年第2期9卷 336-345页

作者： Pinlei Lv Chengyu Fan Aijun Yang Huan Yuan Jifeng Chu Mingzhe Rong Xiaohua Wang State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong UniversityXi'anChina State Grid Sichuan Electric Power Research Institute ChengduChina

Vibration with a frequency of 100 Hz is widely distributed in the power equipment,and it can provide a new way to supply Energy for sensors by vibration Energy harvesting.The vibration Energy harvesting method based on electromagnetic induction principle was studied through the arrayed structure of magnets and coils.Static magnetic field models were established for four magnet array structures and it was found that the alternating magnet array has the largest magnetic flux and magnetic flux gradient.Based on the alternating magnet array,prototypes of Energy harvester with vertical and parallel movement mode were proposed.Through structural parameter optimisation analysis,two different Energy harvesters were fabricated and it was found that the Energy harvester with a parallel movement mode has better output performances.The Energy harvester could provide output voltage/current and power of 8.35 V/17.39 mA and 15.13 mW(matched resistance is 200Ω)at an acceleration of 5 m⋅s^(-2).The 100 mF capacitor could be charged to 2.72 V within 300 s,and the final voltage of the capacitor is greater than 3 V,which could sustainably drive commercial wireless temperature/humidity sensors.

关键词： power Energy alternating

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