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Theta Oscillations Support Prefrontal-hippocampal Interactions in Sequential Working Memory

Neuroscience Bulletin 2024年第2期40卷 147-156页

作者： Minghong Su Kejia Hu Wei Liu yunhao Wu Tao wang Chunyan Cao Bomin Sun Shikun Zhan Zheng Ye Institute of Psychology Chinese Academy of SciencesBeijing 100101China Department of Psychology University of Chinese Academy of SciencesBeijing 100049China Department of Neurosurgery Center for Functional NeurosurgeryRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Institute of Neuroscience Center for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai 200031China

The prefrontal cortex and hippocampus may support sequential working memory beyond episodic memory and spatial *** stereoelectroencephalography(SEEG)study investigated how the dorsolateral prefrontal cortex(DLPFC)interacts with the hippocampus in the online processing of sequential *** patients with epilepsy(eight women,age 27.6±8.2 years)completed a line ordering task with SEEG recordings over the DLPFC and the *** showed longer thinking times and more recall errors when asked to arrange random lines clockwise(random trials)than to maintain ordered lines(ordered trials)before recalling the orientation of a particular ***,the ordering-related increase in thinking time and recall error was associated with a transient theta power increase in the hippocampus and a sustained theta power increase in the DLPFC(3–10 Hz).In particular,the hippocampal theta power increase correlated with the memory precision of line ***,theta phase coherences between the DLPFC and hippocampus were enhanced for ordering,especially for more precisely memorized ***,the theta band DLPFC→hippocampus influence was selectively enhanced for ordering,especially for more precisely memorized *** study suggests that theta oscillations may support DLPFC-hippocampal interactions in the online processing of sequential information.

关键词： Sequential working memory Hippocampus Dorsolateral prefrontal cortex Theta oscillations Stereoelectroencephalography(SEEG) Phase coherence Granger causality

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Possible negative influences of increasing content of cerium on activity and hydrothermal stability of Rh/ceria-zirconia three-way catalysts

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Journal of Rare Earths 2021年第7期39卷 797-804,I0002页

作者： Tianming Huang Meiqing Shen Guanghao Cheng yunhao wang Jianqiang wang Wei Li Se HOh Gongshin Qi Ming Yang Jun wang Key Laboratory for Green Chemical Technology of State Education Ministry School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300350China State Key Laboratory of Engines Tianjin UniversityTianjin 300350China Chemical and Materials Systems Laboratory General Motors Global Research and Development30470 Harley Earl BlvdWarrenMl 48092USA

The activity and hydrothermal stability of the Rh/Ce_(x)Zr_(1-x)O_(2)(x=0,0.05,0.3,0.5) model three-way catalysts for gasoline vehicle emissions control were investigated in this *** the Rh/Ce_(x)Zr_(1-x)O_(2) samples with different Ce/Zr ratios,the Rh/ZrO_(2) sample exhibits a significantly better activity and hydrothermal stability than the rest of the *** impacts of having more Ce components in the Rh/Ce_(x)Zr_(1-x)O_(2) catalysts are associated with the strong Rh-O-Ce interaction that tends to over stabilize the rhodium species.A significant amount of such rhodium atoms can be found in the bulk of the support oxides after a hydrothermal aging at 1050℃ with 10% H_(2)O in air for 12 ***,the sintering of rhodium on the surface of Rh/ZrO_(2) catalysts is the main reason for the catalyst deactivation during the hydrothermal *** findings provide an example where high dispersion of supported metal induced by strong metal-support interactions does not necessarily lead to high catalytic activity.

关键词： Rh catalysts CeO_(2)-ZrO_(2) Emission control reactions Activity Hydrothermal stability Rare earths

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Troy: Efficient Service Deployment for Windows Systems

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Chinese Journal of Electronics 2024年第1期33卷 313-322页

作者： Deyu ZHANG Yu XIE Mucong XU En CHENG Xiaoyan KUI Bangwen HE yunhao LI School of Computer Science and Engineering Central South University

The modern university computer lab and kindergarden through 12th grade classrooms require a centralized solution to efficiently manage a large number of desktops. The existing solutions either bring virtualization overhead in runtime or requires loading a large image over 30 GB leading to an unacceptable network latency. In this work, we propose Troy which takes advantage of the differencing virtual hard disk techniques in Windows *** such, Troy only loads the modifications made on one machine to all other machines. Troy consists of two modules that are responsible to generate an initial image and merge a differencing image with its parent image, respectively. Specifically, we identify the key fields in the virtual hard disk image that links the differencing image and the parent image and find the modified blocks in the differencing images that should be used to replace the blocks in the parent image. We further design a lazy copy solution to reduce the I/O burden in image merging. We have implemented Troy on bare metal machines. The evaluation results show that the performance of Troy is comparable to the native implementation in Windows, without requiring the Windows environment.

关键词： Runtime Image synthesis Merging Loading Metals Hard disks Virtualization

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Development of Chinese herbal medicine for sensorineural hearing loss

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Acta Pharmaceutica Sinica B 2024年第2期14卷 455-467页

作者： yunhao Wu Jingwen Zhang Qiuping Liu Zhuang Miao Renjie Chai Wenyong Chen State Key Laboratory of Bioelectronics Department of Otolaryngology Head and Neck SurgeryZhongda HospitalSchool of Life Sciences and TechnologyAdvanced Institute for Life and HealthJiangsu Province HighTech Key Laboratory for Bio-Medical ResearchSoutheast UniversityNanjing 210096China Department of Otolaryngology-Head and Neck the Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510120China Department of Otolaryngology-Head and Neck Surgery Affiliated Hospital of Jiangnan UniversityWuxi 214000China Department of Otolaryngology Head and Neck Surgery Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengdu 610000China Co-Innovation Center of Neuroregeneration Nantong UniversityNantong 226001China Institute for Stem Cell and Regeneration Chinese Academy of ScienceBeijing 100085China Beijing Key Laboratory of Neural Regeneration and Repair Capital Medical UniversityBeijing 100069China

According to the World Health Organization’s world report on hearing,nearly 2.5 billion people worldwide will suffer from hearing loss by 2050,which may contribute to a severe impact on individual life quality and national *** hearing loss(SNHL)occurs commonly as a result of noise exposure,aging,and ototoxic drugs,and is pathologically characterized by the impairment of mechanosensory hair cells of the inner ear,which is mainly triggered by reactive oxygen species accumulation,inflammation,and mitochondrial *** recent advances have been made in understanding the ability of cochlear repair and regeneration,there are still no effective therapeutic drugs for *** herbal medicine which is widely distributed and easily accessible in China has demonstrated a unique curative effect against SNHL with higher safety and lower cost compared with Western *** we present trends in research for Chinese herbal medicine for the treatment of SNHL,and elucidate their molecular mechanisms of action,to pave the way for further research and development of novel effective drugs in this field.

关键词： Sensorineural hearing loss Chinese herbal medicine Molecular mechanism Active ingredients Prescriptions Ototoxic drugs Noise Hair cells

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Design Optimization of a Self-circulated Hydrogen Cooling System for a PM Wind Generator Based on Taguchi Method

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CES Transactions on Electrical Machines and Systems 2024年第2期8卷 170-176页

作者： Gaojia Zhu yunhao Li Longnv Li IEEE School of Electrical Engineering Tiangong UniversityTianjin 300387China

With the continuous improvement of permanent magnet(PM)wind generators'capacity and power density,the design of reasonable and efficient cooling structures has become a *** paper proposes a fully enclosed self-circulating hydrogen cooling structure for a originally forced-air-cooled direct-drive PM wind *** proposed hydrogen cooling system uses the rotor panel supports that hold the rotor core as the radial blades,and the hydrogen flow is driven by the rotating plates to flow through the axial and radial vents to realize the efficient cooling of the *** to the structural parameters of the cooling system,the Taguchi method is used to decouple the structural *** influence of the size of each cooling structure on the heat dissipation characteristic is analyzed,and the appropriate cooling structure scheme is determined.

关键词： Permanent magnet wind generator Hydrogen cooling Taguchi method Fluidic-thermal coupled fields

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Employee Stock Ownership Plans and Stock-price Informativeness

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China & World Economy 2024年第3期32卷 162-190页

作者： Yuehua Zuo Xin Huang Xiaojun Liu yunhao Dai School of Economics Huazhong University of Science and TechnologyChina School of Economics and Modern Economics Research Center Huazhong University of Science and TechnologyChina

This study examines the impact of employee stock ownership plans(ESOPs)on stock-price informativeness in Chinese stock *** findings indicate that firms implementing ESOPs experienced an average 11.89 percent increase in stock-price *** plans improved stock-price informativeness through increased external attention and *** event study shows that ESOPs gave rise to an announcement effect,driven by anticipated performance improvements and the novelty associated with ESOPs.A mechanism analysis demonstrates that the implementation of ESOPs attracted market attention,and the increased market supervision resulting from this mitigated the moral hazards of management associated with *** with more positive signals exerted a greater ***,ESOPs that prioritized management incentives gained more recognition in the *** the incentive effects of ESOPs were weaker than those of equity incentive plans and the ESOPs lost novelty over time,the annual announcement effect diminished *** findings underscore the necessity of strengthening ESOP incentives for continued optimization of priceefficiency.

关键词： announcement effect corporate governance employee stock ownership plan stock-price informativeness

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Enhancing Photovoltaic Performance of Nonfused-Ring Electron Acceptors via Asymmetric End-Group Engineering and Noncovalently Conformational Locks

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Chinese Journal of Chemistry 2024年第5期42卷 485-490页

作者： Bo Liu Congqi Li Xiaobin Gu Yinghui Han Zhixiang Wei yunhao Cai Xin Zhang Hui Huang Yanping Huo School of Chemical Engineering and Light Industry Guangdong University of TechnologyGuangzhouGuangdong510006 China College of Materials Science and Opto-Electronic Technology & Center of Materials Science and Optoelectronics Engineering & CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of SciencesBeijing100049 China College Resources and Environment University of Chinese Academy of SciencesBeijing100049 China Center for Excellence in Nanoscience (CAS) & Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS) National Center for Nanoscience and TechnologyBeijing100190 China

By employing the asymmetric end-group engineering,an asymmetric nonfused-ring electron acceptor(NFREA)was designed and *** with the symmetric analogs(NoCA-17 and NoCA-18),NoCA-19 possesses broader light absorption range,more coplanarπ-conjugated backbone,and appropriate crystallinity according to the experimental and theoretical *** organic solar cells based on J52:NoCA-19 exhibited a power conversion efficiency as high as 12.26%,which is much higher than those of J52:NoCA-17(9.50%)and J52:NoCA-18(11.77%),mainly due to more efficient exciton dissociation,better and balanced charge mobility,suppressed recombination loss,shorter charge extraction time,longer charge carrier lifetimes,and more favorable blend film *** findings demonstrate the great potential of asymmetric end-group engineering in exploring low-cost and high-performance NFREAs.

关键词： Organic solar cells Nonfused-ring electron acceptors Asymmetric end-group engineering Noncovalently conformational locks Low-cost acceptors

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Target-adaptive optical phased array lidar

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Photonics Research 2024年第5期12卷 904-911页

作者： yunhao FU BAISONG CHEN WENQIANG YUE MIN TAO HAOYANG ZHAO YINGZHI LI XUETONG LI HUAN QU XUEYAN LI XIAOLONG HU JUNFENG SONG State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China Peng Cheng Laboratory Shenzhen 518000China

Lidar based on the optical phased array(OPA)and frequency-modulated continuous wave(FMCW)technology stands out in automotive applications due to its all-solid-state design,high reliability,and remarkable resistance to ***,while FMCW coherent detection enhances the interference resistance capabilities,it concurrently results in a significant increase in depth computation,becoming a primary constraint for improving point cloud density in such perception *** address this challenge,this study introduces a lidar solution leveraging the flexible scanning characteristics of *** proposed system categorizes target types within the scene based on RGB ***,it performs scans with varying angular resolutions depending on the importance of the *** results demonstrate that,compared to traditional scanning methods,the target-adaptive method based on semantic segmentation reduces the number of points to about one-quarter while maintaining the resolution of the primary target ***,with a similar number of points,the proposed approach increases the point cloud density of the primary target area by about four times.

关键词： optical lidar coherent

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Orbital-Ordering Driven Simultaneous Tunability of Magnetism and Electric Polarization in Strained Monolayer VCl_(3)

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Chinese Physics Letters 2024年第4期41卷 126-131页

作者：郭的坪王聪王侣锦陆赟豪吴骅张妍宁季威 Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China Zhejiang Province Key Laboratory of Quantum Technology and Device State Key Laboratory of Silicon MaterialsDepartment of PhysicsZhejiang UniversityHangzhou 310027China Laboratory for Computational Physical Sciences(MOE) State Key Laboratory of Surface Physicsand Department of PhysicsFudan UniversityShanghai 200433China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China

Two-dimensional(2D)van der Waals magnetic materials have promising and versatile electronic and magnetic properties in the 2D limit,indicating a considerable potential to advance spintronic *** predictions thus far have not ascertained whether monolayer VCl_(3) is a ferromagnetic(FM)or anti-FM monolayer;this also remains to be experimentally *** theoretically investigate the influence of potential factors,including C_(3) symmetry breaking,orbital ordering,epitaxial strain,and charge doping,on the magnetic ground *** first-principles calculations,we predict a collinear type-Ⅲ FM ground state in monolayer VCl_(3) with a broken C_(3) symmetry,wherein only the former two of three t_(2g)orbitals(a_(1g),e_(g2)^(π)and e_(g1)^(π))are *** atomic layer thickness and bond angles of monolayer VCl_(3) undergo abrupt changes driven by an orbital ordering switch,resulting in concomitant structural and magnetic phase *** doping to the underlying Cl atoms of monolayer VCl_(3) without C_(3) symmetry simultaneously induces in-and out-of-plane *** can achieve a multiferroic phase transition if combined with the discovered adjustments of magnetic ground state and polarization magnitude under *** establishment of an orbital-ordering driven regulatory mechanism can facilitate deeper exploration and comprehension of magnetic properties of strongly correlated systems in monolayer VCl_(3).

关键词： monolayer symmetry orbital

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自然在何种意义上具有目的性--重审黑格尔的自然观

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理论与现代化 2022年第1期 94-104页

作者：王运豪南开大学哲学院

黑格尔的自然在何种意义上具有目的性,这似乎存有疑义。黑格尔批判了对自然的外在的、主观的解释,并表明了自然的能动性与统一性,这阐发出自然本身的内在目的。但是自然并不能充分体现对他物的自发的认识,因而并未体现出内在目的的核心... 详细信息

黑格尔的自然在何种意义上具有目的性,这似乎存有疑义。黑格尔批判了对自然的外在的、主观的解释,并表明了自然的能动性与统一性,这阐发出自然本身的内在目的。但是自然并不能充分体现对他物的自发的认识,因而并未体现出内在目的的核心即自由。自然目的性只是符合内在目的,但并非出于内在目的,黑格尔进一步展现出康德对“出于”与“符合”的区分。因此,自然目的无法体现内在目的的本质,黑格尔的自然目的只是一种弱的目的性。

关键词：自然自由目的性黑格尔

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