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Growing curly graphene layer boosts hard carbon with superior sodium-ion storage

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Nano Research 2023年第7期16卷 9299-9309页

作者： minghao song Qiang song Tao Zhang Xiaomei Huo Zezhou Lin Zhaowen Hu Lei Dong Ting Jin Chao Shen Keyu Xie State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072China Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of EducationSouthwest University of Science and TechnologyMianyang 621010China Department of Applied Physics and Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHong Kong 999077China

Benefiting from the distinctive ordering degree and local microstructure characteristics,hard carbon(HC)is considered as the most promising anode for sodium-ion batteries(SIBs).Unfortunately,the low initial Coulombic efficiency(ICE)and limited reversible capacity severely impede its extensive ***,a homogeneous curly graphene(CG)layer with a micropore structure on HC is designed and executed by a simple chemical vapor deposition method(without catalysts).CG not only improves the electronic/ionic conductivity of the hard carbon but also effectively shields its surface defects,enhancing its *** particular,due to the spontaneous curling structural characteristics of CG sheets(CGs),the micropores(≤2 nm)formed provide additional active sites,increasing its *** used as a sodium-ion battery anode,the HC-CG composite anode displayed an outstanding reversible capacity of 358 mAh·g^(-1),superior ICE of 88.6%,remarkable rate performance of 145.8 mAh·g^(-1)at 5 A·g^(-1),and long cycling life after 1000 cycles with 88.6%at 1 A·g^(-1).This work provides a simple defect/microstructure turning strategy for hard carbon anodes and deepens the understanding of Na+storage behavior in the plateau region,especially on the pore-filling mechanism by forming quasi-metallic clusters.

关键词： hard carbon sodium-ion battery curly graphene pore-filling mechanism superior sodium-ion storage

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394A湿式四缸体消失模工艺研究

铸造工程 2024年第S1期48卷 42-44页

作者：轩世成何帅伟都永杰宋明昊于继峰一拖(洛阳)铸锻有限公司河南洛阳471003

为实现消失模工艺生产394A四缸体,经过对产品结构进行详细分析,浇注工艺采用倾斜顶注式浇注系统,组模采用半自动热胶粘合机粘合白模,涂料浸涂采用KY-Ⅱ型涂料。经过生产调试,铸件产品的质量达到了图纸技术要求,满足客户需求。

关键词：湿式四缸体倾斜顶注热胶粘合

Cross-Modal Graph Semantic Communication Assisted by Generative AI in the Metaverse for 6G

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Research 2024年第2期7卷 19-27页

作者： Mingkai Chen minghao Liu Congyan Wang Xingnuo song Zhe Zhang Yannan Xie Lei Wang Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and TelecommunicationsNanjng 210003China State Key Laboratory of Organic Electronics and Information Displays&Institute of Advanced Materials(IAM) Nanjing University of Posts and TelecommunicationsNanjing 210023China

Recently, the development of the Metaverse has become a frontier spotlight, which is an important demonstration of the integration innovation of advanced technologies in the Internet. Moreover, artificial intelligence (AI) and 6G communications will be widely used in our daily lives. However, the effective interactions with the representations of multimodal data among users via 6G communications is the main challenge in the Metaverse. In this work, we introduce an intelligent cross-modal graph semantic communication approach based on generative AI and 3-dimensional (3D) point clouds to improve the diversity of multimodal representations in the Metaverse. Using a graph neural network, multimodal data can be recorded by key semantic features related to the real scenarios. Then, we compress the semantic features using a graph transformer encoder at the transmitter, which can extract the semantic representations through the cross-modal attention mechanisms. Next, we leverage a graph semantic validation mechanism to guarantee the exactness of the overall data at the receiver. Furthermore, we adopt generative AI to regenerate multimodal data in virtual scenarios. Simultaneously, a novel 3D generative reconstruction network is constructed from the 3D point clouds, which can transfer the data from images to 3D models, and we infer the multimodal data into the 3D models to increase realism in virtual scenarios. Finally, the experiment results demonstrate that cross-modal graph semantic communication, assisted by generative AI, has substantial potential for enhancing user interactions in the 6G communications and Metaverse.

关键词： modal frontier guarantee

Enhancing photodynamic inactivation via tunning spatial constraint on photosensitizer

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Science China Chemistry 2024年第2期67卷 652-663页

作者： Chong Li minghao Han Ji Gao Shuxian Wang song-Bo Lu Yaxi Li Zhao Liu Chen Zhang Zhaojin Wang Fangliang Wang Yuang Sun Chun Loong Ho Kai Wang Yun Shen Kai Li Shenzhen Key Laboratory of Smart Healthcare Engineering Guangdong Provincial Key Laboratory of Advanced BiomaterialsDepartment of Biomedical EngineeringSouthern University of Science and TechnologyShenzhen518055China Department of Chemical and Environmental Engineering University of California RiversideRiverside92521USA Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen518055China

The critical factor of spatial constraint,provided by the external confinement(e.g.,matrix),is often overlooked during photodynamic inactivation,despite playing a crucial role in determining the molecular photophysical process and subsequent antipathogen ***,as a proof-of-concept model,we employed two types of polymers with varying interaction energies with dopants to investigate the intrinsic relationship between spatial constraint and the essential excited-state behaviors of doped photosensitizer(4-(2-(5-(4-(diphenylamino)phenyl)thiophen-2-yl)ethyl)-1-methylquinolin-1-ium iodine,TPP).Through experimental investigation and theoretical calculations,we found that TPP tends to remain in the excited state for a shorter dwell time under weaker spatial constraints due to less restricted molecular motion in polyurethane(PU) ***,the singlet oxygen(^(1)O_(2)) generated from doped-TPP shows a 9.23-fold enhancement in PU than in the polyvinylchloride(PVC) *** light irradiation,the PU@TPP nanofiber can efficiently eliminate the coronavirus MHV-A59(≥99.9997%) at a 220,000-fold higher concentration than the infected *** antibacterial efficacy has also been demonstrated,with a killing rate of ≥99%.

关键词： photodynamic antibacterial singlet oxygen triphenylamine nanofiber

Study on Application of BIM Technology in Power Engineering Costing

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Study on Application of BIM Technology in Power Engineering ...

Co掺杂诱导Co_(x)P-Ni_(2)P双金属位点与酸协同作用实现高效加氢脱氧

作者： minghao song North China Electric Power University

With the power grid company entering the period of fine management, the control of power engineering cost has been paid more and more attention, and it is very urgent to strengthen engineering project cost management. Aiming to effectively control the construction cost of power engineering projects and maximize the benefits of power supply enterprises and relevant units, this paper attempts to study the feasibility of using BIM Technology in the field of power engineering cost management. Based on analysis of the main problems in each link of power engineering cost management, we apply BIM technology to propose the costing management mode based on BIM technology in different stages.

关键词： BIM Power engineering Costing management

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燃料化学学报（中英文） 2024年第9期52卷 1327-1335页

作者：司明浩王帅苟晓梅宋华东北石油大学化学化工学院黑龙江大庆163318

高效加氢脱氧催化剂的开发是生物油提质升级的关键。以介孔SiO_(2)为载体,在Ni_(2)P活性相基础上,通过Co掺杂制备了Co_(x)P-Ni_(2)P双金属位点与酸性位点并存的Co_(x)P-Ni_(2)P/SiO_(2)-y催化剂(y为初始P/(Ni+Co)物质的量比),采用XRD、... 详细信息

高效加氢脱氧催化剂的开发是生物油提质升级的关键。以介孔SiO_(2)为载体,在Ni_(2)P活性相基础上,通过Co掺杂制备了Co_(x)P-Ni_(2)P双金属位点与酸性位点并存的Co_(x)P-Ni_(2)P/SiO_(2)-y催化剂(y为初始P/(Ni+Co)物质的量比),采用XRD、BET、XPS、H_(2)-TPR、NH3-TPD、Py-FTIR和TEM技术表征了催化剂的结构和化学性质,并以间甲酚为模型化合物,考察了Co掺杂以及P/M物质的量比对Ni2P/SiO_(2)催化剂加氢脱氧性能的影响。结果表明,Co的掺杂不仅新增了活性位点Co_(x)P,还优化了Ni_(2)P的电子结构,进而提高了催化剂的加氢脱氧(HDO)活性。在Co_(x)P-Ni_(2)P/SiO_(2)-y催化剂中,P/M物质的量比为0.5的Co_(x)P-Ni_(2)P/SiO_(2)-0.5催化性能最好,在275℃,2 MPa,1 h的反应条件下,间甲酚转化率达到98.7%,对脱氧产物甲基环己烷(MCH)的选择性达到95.6%,且Co_(x)P-Ni_(2)P/SiO_(2)-y催化剂上的HDO反应过程以先加氢后脱氧(HYD)路径为主。

关键词：生物油加氢脱氧磷化镍 Co掺杂间甲酚

离子液体脱除模拟油中挥发酚的多尺度模拟与研究

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化工学报 2023年第9期74卷 3654-3664页

作者：宋明昊赵霏刘淑晴李国选杨声雷志刚北京化工大学化工资源有效利用国家重点实验室北京100029 中南大学能源科学与工程学院湖南长沙410083 石河子大学新疆兵团化工绿色重点实验室新疆石河子832003

对离子液体萃取模拟油中的苯酚和苯甲酚进行了多尺度模拟,基于COSMO-RS模型筛选了萃取效果良好的离子液体,并计算了离子液体和挥发酚的σ-profile以及混合物的超额焓用以探究体系极性与非理想性。通过量子化学计算与分子动力学模拟计算... 详细信息

对离子液体萃取模拟油中的苯酚和苯甲酚进行了多尺度模拟,基于COSMO-RS模型筛选了萃取效果良好的离子液体,并计算了离子液体和挥发酚的σ-profile以及混合物的超额焓用以探究体系极性与非理想性。通过量子化学计算与分子动力学模拟计算了挥发酚和离子液体的静电势、弱相互作用,以及径向分布函数和空间分布函数等参数,旨在了解离子液体与挥发酚之间的相互作用机理。设计了离子液体萃取脱除模拟油中挥发酚工艺流程,结合灵敏度分析进一步优化了工艺条件,计算结果证实了使用离子液体脱除挥发酚的可行性与先进性。

关键词：离子液体挥发酚分子模拟构效关系萃取

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基于时间生成对抗网络的风电随机场景预测

智慧电力 2023年第8期51卷 59-66页

作者：贾梦瑶王玉玮宋明浩华北电力大学经济管理系河北保定071003

由于风电出力的随机性和时间相关性,利用常规的短期点或区间预测方法所得到的风电数据,无法支撑高比例风电接入下电力系统的鲁棒调度和可靠运行。提出一种基于时间生成对抗网络(TimeGAN)的风电随机场景预测模型。首先,将风电样本分解为... 详细信息

由于风电出力的随机性和时间相关性,利用常规的短期点或区间预测方法所得到的风电数据,无法支撑高比例风电接入下电力系统的鲁棒调度和可靠运行。提出一种基于时间生成对抗网络(TimeGAN)的风电随机场景预测模型。首先,将风电样本分解为静态和时间序列数据,并搭建嵌入、复现、生成和判别网络结构;其次,以静态和时间序列数据为样本,联合训练嵌入和复现网络;最后,以嵌入网络输出为样本,对抗训练生成和判别网络,并将生成网络输出反馈至嵌入-复现训练以检验时间序列拟合效果。以最小化重构、有监督和无监督损失为目标,模型深度学习风电时间特性并预测随机场景。算例验证了所提模型的有效性。

关键词：风电出力随机场景预测时间生成对抗网络可视化降维信息学习能力

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车载控制网络及其协议比较

汽车工程 2005年第2期27卷 225-229页

作者：宋明浩阳宪惠清华大学自动化系北京100084

介绍现阶段车载网络结构,在探讨汽车控制实时性、可靠性要求的基础上,论述了几种用于汽车的时间触发协议及其通信方式,分析比较了它们的技术特点,指出了车载控制网络的技术发展方向。

关键词：车载控制网络网络结构汽车时间触发协议通信方式