|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Collaborative Offloading Method for Digital Twin Empowered Cloud Edge Computing on Internet of Vehicles显示文摘Digital twinning and edge computing are attractive solutions to support computing-intensive and servicesensitive Internet of Vehicles applications.Most of the existing Internet of Vehicles service offloading solutions only consider edge–cloud collaboration,but the collaboration between small cell eNodeB(SCeNB)should not be ignored.Service delays far lower than offloading tasks to the cloud can be obtained through reasonable collaborative computing between nodes.The proposed framework realizes and maintains the simulation of collaboration between SCeNB nodes by constructing a digital twin that maintains SCeNB nodes in the central controller,thereby realizing user task offloading positions,sub-channel allocation,and computing resource allocation.Then an algorithm named AUC-AC is proposed,based on the dominant actor–critic network and the auction mechanism.In order to obtain a better command of global information,the convolutional block attention mechanism(CBAM)is used in the digital twin of each SCeNB node to observe its environment and learn strategies.Numerical results show that our experimental scheme is better than several baseline algorithms in terms of service delay. | Linjie Gu Mengmeng Cui Linkun Xu Xiaolong Xu | 2023 | Tsinghua Science and Technology2023，28，3： | 1 |
| 2 | Anisotropic MOF-on-MOF Growth of Isostructural Multilayer Metal–Organic Framework Heterostructures显示文摘Isostructural MOFs with similar crystallographic parameter are easily available for MOF-on-MOF growth and possible to form core–shell structure by isotropic growth.However,due to well-matched cell lattice,selective growth in isostructural MOF heterostructures remains a great challenge for engineering atypical MOF heterostructures.Herein,an anisotropic MOF-onMOF growth strategy was developed to structure a range of multilayer sandwich-like ZIF-L heterostructures via stacking isostructural ZIF-L-Zn and ZIF-L-Co alternately with three-,five-,seven-,and more layer structures.Moreover,these heterostructures with highly designable feature were fantastic precursors for fabricating derivatives with tunable magnetic and catalytic properties.Such strategy explores a novel way of achieving anisotropic MOF-on-MOF growth between isostructural MOFs and opens up new horizons for regulating the properties by MOF modular assembly in versatile functional nanocomposites. | Zhida Gu Wenlei Zhang Ting Pan Yu Shen Peishan Qin Peng Zhang Xiaohan Li Liwei Liu Linjie Li Yu Fu Weina Zhang Fengwei Huo | 2021 | Research2021，，1： | 1 |
| 3 | Anisotropic MOF-on-MOF Growth of Isostructural Multilayer Metal–Organic Framework Heterostructures显示文摘Isostructural MOFs with similar crystallographic parameter are easily available for MOF-on-MOF growth and possible to form core–shell structure by isotropic growth.However,due to well-matched cell lattice,selective growth in isostructural MOF heterostructures remains a great challenge for engineering atypical MOF heterostructures.Herein,an anisotropic MOF-onMOF growth strategy was developed to structure a range of multilayer sandwich-like ZIF-L heterostructures via stacking isostructural ZIF-L-Zn and ZIF-L-Co alternately with three-,five-,seven-,and more layer structures.Moreover,these heterostructures with highly designable feature were fantastic precursors for fabricating derivatives with tunable magnetic and catalytic properties.Such strategy explores a novel way of achieving anisotropic MOF-on-MOF growth between isostructural MOFs and opens up new horizons for regulating the properties by MOF modular assembly in versatile functional nanocomposites. | Zhida Gu Wenlei Zhang Ting Pan Yu Shen Peishan Qin Peng Zhang Xiaohan Li Liwei Liu Linjie Li Yu Fu Weina Zhang Fengwei Huo | 2022 | Research2022，，1： | 0 |
| 4 | Toxicity of silicon dioxide nanoparticles with varying sizes on the cornea and protein corona as a strategy for therapy显示文摘The human cornea is exposed directly to particulate matter(PM) in polluted air. This exposure can cause eye discomfort and corneal injury. Ultrafine PM(diameter <100 nm) is thought to be particularly harmful to health, but there is limited research investigating its toxicity to the eye. In this study, we evaluated toxicity differences among 30-, 40-, 100-and 150-nm silicon dioxide nanoparticles(SiO_2 NPs) on the cornea. A 24-hour in vitro exposure of primary human corneal epithelial cells(hCECs) to ultrafine(30 and 40 nm) SiO_2 NPs produced toxicity, as evidenced by cell membrane damage, reduced cell viability,increased cell death and mitochondrial dysfunction. In vivo exposure to the same nanoparticles produced observable corneal injury. These effects were more severe with ultrafine than with fine(100 and 150 nm)SiO_2 NPs. Common antioxidant compounds, e.g., glutathione, did not protect the cornea from SiO_2 NP-induced damage. However, foetal bovine serum(FBS) did significantly reduce toxicity, likely by forming a protective protein corona around the nanoparticles. This finding suggests that FBS(or its derivatives) may be a useful clinical therapy for corneal toxicity caused by ultrafine particulates. | Dayu Sun Linji Gong Jing xie Xianliang Gu Yijian Li Qinglin Cao Qiyou Li Luodan A. Zhanjun Gu Haiwei Xu | 2018 | Science Bulletin2018，63，14： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员