检索结果-南通市图书馆

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑Life Lithium Metal Batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-Min Qin Zhongliang Li Wen‑Xia Su Jia‑Min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan yue‑Peng Cai Kang Li Qifeng zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of Li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high Li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous Li deposition and highly reversible Li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous Li+flux Lithium metal battery

在线全文

学校读者我要写书评

暂无评论

高管限薪方式与国有企业高质量发展

经济问题 2025年第1期 70-78页

作者：吴秋生郑玥臻山西财经大学会计学院山西太原030012

2009年和2015年中华人民共和国人力资源和社会保障部和国务院国有资产监督管理委员会先后出台了国有企业高管限薪规定,采取了绝对限薪和相对限薪两种不同方式,因此,有必要明晰哪一种方式更有利于促进国有企业高质量发展。以2010—2023年... 详细信息

2009年和2015年中华人民共和国人力资源和社会保障部和国务院国有资产监督管理委员会先后出台了国有企业高管限薪规定,采取了绝对限薪和相对限薪两种不同方式,因此,有必要明晰哪一种方式更有利于促进国有企业高质量发展。以2010—2023年的A股国有企业为样本进行研究,结果表明:与绝对限薪相比,相对限薪更能够促进国有企业高质量发展,且相对限薪程度越高、内部控制质量越高,上述关系越明显。进一步研究发现,相对限薪促进国有企业发展质量提高是通过降低盈余管理、提高创新效率等路径实现的,且这种作用路径在产品市场竞争度高的国有企业和实体国有企业中更明显。研究结论对合理制定和有效实施限薪政策及提高企业内部控制质量,促进国有企业高质量发展具有启示意义。

关键词：绝对限薪相对限薪全要素生产率内部控制质量

A monolithic 3D IGZO-RRAM-SRAM-integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2025年

作者： Shengzhe YAN Zhaori CONG Zi WANG Zhuoyu DAI Zeyu GUO Zhihang QIAN Xufan LI Xu zheng Chuanke CHEN Nianduan LU Chunmeng DOU Guanhua YANG Xiaoxin XU Di GENG Jinshan yue Lingfei WANG Ling LI Ming LIU Institute of Microelectronics of the Chinese Academy of Sciences University of Chinese Academy of Sciences

Abstract Compute-in-memory (CIM) based on various devices such as static random access memory (SRAM) and resistive random access memory (RRAM) and other emerging devices such as indium-gallium-zinc-oxide (IGZO) transistor, magnetoresistive RAM (MRAM), and ferroelectric RAM (FeRAM) has been explored for better performance and energy efficiency on neural networks applications. However, CIM based on a single-type device suffers a variety of non-ideal metrics to reach the simultaneous optimal accuracy, density, and energy efficiency. This work presents equivalent-ideal CIM (Eq-CIM), a monolithic 3D(M3D) IGZO-RRAM-SRAM integrated architecture for robust and efficient compute-in-memory enabling equivalent-ideal device metrics. To overcome the non-ideality (variation, endurance, temperature, etc.) of the single-type devices, system-technology co-optimization (STCO) is performed. This work highlights the non-ideality-aware functionality breakdown for robust high accuracy and simultaneous high density/efficiency, by utilizing 2T0C IGZO for temporal activation storage, RRAM for high-density weight storage, and SRAM for accurate CIM. Device-to-algorithm variation transfer is applied to analyze the system-level accuracy. We benchmark Eq-CIM architecture on CIFAR-10/ImageNet, with 5.06×storage density and 5.05×/2.45×area/energy efficiency compared with single-type-device-based CIM, and high robustness (<0.27%accuracy loss) from-40℃ to 120℃.

关键词：

Measuring Policy Performance in Online Pricing with Offline Data:Worst-case Perspective and Bayesian Perspective

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems Science and Systems Engineering 2023年第3期32卷 352-371页

作者： yue Wang Zeyu zheng Department of Computational Medicine University of CaliforniaLos AngelesCA 90095USA Institut des Hautes Etudes Scientifiques Bures-sur-YvetteEssonne 91440France Department of Industrial Engineering and Operations Research University of CaliforniaBerkeleyCA 94720USA

The problems of online pricing with offline data,among other similar online decision making with offline data problems,aim at designing and evaluating online pricing policies in presence of a certain amount of existing offline *** evaluate pricing policies when offline data are available,the decision maker can either position herself at the time point when the offline data are already observed and viewed as deterministic,or at the time point when the offline data are not yet generated and viewed as *** write a framework to discuss how and why these two different positions are relevant to online policy evaluations,from a worst-case perspective and from a Bayesian *** then use a simple online pricing setting with offline data to illustrate the constructions of optimal policies for these two approaches and discuss their differences,especially whether we can decompose the searching for the optimal policy into independent subproblems and optimize separately,and whether there exists a deterministic optimal policy.

关键词： Online pricing offline data performance measure worst-case approach Bayesian approach

Universal method for designing periodic orbits by homotopy classes in the elliptic restricted three-body problem

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Astrodynamics 2024年第1期8卷 175-188页

作者： yue zheng Min Zhao School of Electronic Engineering Xi’an Aeronautical InstituteXi’an710077China School of Aircraft Engineering Xi’an Aeronautical InstituteXi’an710077China School of Astronautics Northwestern Polytechnical UniversityXi’an710072China

The current methods for designing periodic orbits in the elliptic restricted three-body problem(ERTBP)have the disadvantages of targeting limited orbits and ergodic searches and considering only symmetric orbits.A universal method for designing periodic orbits is proposed in this ***,the homotopy classes of orbits are structured based on their topological ***,a dynamic model based on homotopy classes,ranging from the circular restricted three-body problem(CRTBP)to the ERTBP,can be built using the homotopy ***,a multi-and a single-period orbit were selected based on the resonance ***,the corresponding orbit in the ERTBP was computed by modifying the initial condition of the orbit in the *** method,without an ergodic search,can extend to any orbit,including an asymmetric orbit in the CRTBP,to the ERTBP model,and the two orbits are of the same homotopy *** of the Earth–Moon ERTBP are presented to verify the efficiency of this method.

关键词： periodic orbit elliptic restricted three-body problem(ERTBP) topology homotopy circular restricted three-body problem(CRTBP)

Indoor Pedestrian Tracking with Sparse RSS Fingerprints

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tsinghua Science and Technology 2018年第1期23卷 95-103页

作者： Qiuxia Chen Dongdong Ding yue zheng the School of Automotive and Transportation Engineering Shenzhen Polytechnic Shenzhen 518055 China the CSE Department Shanghai Jiao Tong University Shanghai 200240 China Department of Electronic Engineering Tsinghua University Beijing 100084 China

Indoor pedestrian localization is of great importance for diverse mobile applications. Many indoor localization approaches have been proposed; among them, Radio Signal Strength （RSS）-based approaches have the advantage of existing infrastructures and avoid the cost of infrastructure deployment. However, the RSS-based localization approaches suffer from poor localization accuracy when the RSS fingerprints are sparse, as illustrated by actual experiments in this study. Here, we propose a novel indoor pedestrian tracking approach for smartphone users; this approach provides a high localization accuracy when the RSS fingerprints are sparse. Besides using the RSS fingerprints, this approach also utilizes the inertial sensor readings on smartphones. This approach has two components：（i） dead-reckoning subsystem that counts the number of walking steps with off-the-shelf inertial sensor readings on smartphones and （ii） particle filtering that computes the locations with only sparse RSS readings. The proposed approach is implemented on Android-based smartphones. Extensive experiments are carried out in both srnafl and large testbeds, The evaluation results show that the tracking approach can achieve a high accuracy of 5 m （up to 95%） in indoor environments with only sparse RSS fingerprints.

关键词： localization pedestrian tracking sparse RSS fingerprints

新医科背景下基于EIP-CDIO模式的急危重症护理课程思政教学探究

在线全文

学校读者我要写书评

暂无评论

卫生职业教育 2025年第1期43卷 23-27页

作者：郑娜戴月吴晶江西卫生职业学院江西南昌330200

在分析急危重症护理课程教学现状与不足之处的基础上,结合新医科人才培养目标,提出基于EIP-CDIO模式下的急危重症护理课程思政教学理念和实施路径:构思环节,明确课程思政育人目标;设计环节,优化课程思政教学团队,重构知识点,深入挖掘知... 详细信息

在分析急危重症护理课程教学现状与不足之处的基础上,结合新医科人才培养目标,提出基于EIP-CDIO模式下的急危重症护理课程思政教学理念和实施路径:构思环节,明确课程思政育人目标;设计环节,优化课程思政教学团队,重构知识点,深入挖掘知识点中蕴含的思政元素;实现环节,运用多种教学方法,将思政元素潜移默化地融入专业知识教授过程;运作环节,构建持续性教学评价机制,促进课程思政教学效果的良性提升。

关键词： EIP-CDIO模式急危重症护理课程思政新医科

维普期刊数据库博看期刊

Three-dimensional deformation in curl vector field

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第8期13卷 565-572页

作者： Dan ZENG Da-yue zheng Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai UniversityShanghai 200072China NetEase(Hangzhou)Network Co. Ltd.Hangzhou 310052China

Deformation is an important research topic in *** are two key issues in mesh deformation:(1) selfintersection and(2) volume *** this paper,we present a new method to construct a vector field for volume-preserving mesh deformation of free-form ***-preserving is an inherent feature of a curl vector *** the field lines of the curl vector field will never intersect with each other,a mesh deformed under a curl vector field can avoid self-intersection between field *** the vector field based on curl is useful in preserving graphic features and preventing *** proposed algorithm introduces distance field into vector field construction;as a result,the shape of the curl vector field is closely related to the object *** define the construction of the curl vector field for translation and rotation and provide some special effects such as twisting and *** into account the information of the object,this approach can provide easy and intuitive construction for free-form *** results show that the approach works effectively in real-time animation.

关键词： 3D mesh deformation Curl vector field. Volume loreservin~ Self-intersection

Application of deep learning to estimate stratospheric gravity wave potential energy

在线全文

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2022年第1期6卷 70-82页

作者： yue Wu zheng Sheng XinJie Zuo College of Meteorology and Oceanology National University of Defense TechnologyChangsha 410073China Northwest Institute of Nuclear Technology Xi’an 710024China High-tech Institute Fan Gong-ting South Street on the 12thQingzhou 262500China

One of the most important dynamic processes in the middle and upper atmosphere,gravity waves(GWs)play a key role in determining global atmospheric *** wave potential energy(GW Ep)is an important parameter that characterizes GW intensity,so it is critical to understand its global *** this paper,a deep learning algorithm(DeepLab V3+)is used to estimate the stratospheric GW *** deep learning model inputs are ERA5 reanalysis datasets and GMTED2010 terrain *** Ep averaged over 20−30 km from 60°S−60°N,calculated by COSMIC radio occultation(RO)data,is used as the measured value corresponding to the model *** results show that(1)this method can effectively estimate the zonal trend of GW ***,the errors between the estimated and measured value of Ep are larger in low-latitude regions than in mid-latitude regions,possibly due to the large number of convolution operations used in the deep learning ***,the measured Ep has errors associated with interpolation to the grid;this tends to be amplified in low-latitude regions because the GW Ep is larger and the RO data are relatively sparse,affecting the training accuracy.(2)The estimated Ep shows seasonal variations,which are stronger in the winter hemisphere and weaker in the summer hemisphere.(3)The effect of quasi-biennial oscillation(QBO)can be clearly observed in the monthly variation of estimated GW Ep,and its QBO amplitude may be less than that of the measured Ep.

关键词： deep learning stratospheric gravity wave potential energy