检索结果-内蒙古大学图书馆

4th International Conference on Electronic Information Engineering and Computer Communication, EIECC 2024

作者： Liao, Fei Bao, Binglei University of Science and Technology of China Department of Automation Hefei China University of Science and Technology of China Institute of Advanced Technology Hefei China

ISBN: (纸本)9798331534622

This article presents a wearable visual enhancement system for divers in complex underwater scenarios. An adaptive underwater image enhancement algorithm based on multi-scale fusion is also proposed and implemented in the underwater wearable system to improve the wearer's visual perception of their surroundings. An illumination compensation processing step is introduced to exhibit significantly clearer image features and effectively preserve the true and essential information of the image throughout the fusion process. We conducted extensive experiments across diverse datasets and various underwater scenarios to validate the efficacy of our algorithm. The results show that our approach surpasses state-of-the-art techniques, including traditional, deep learning-based, and multi-scale fusion-based image enhancement methods, as evidenced by both objective quantitative metrics and qualitative evaluations. Also, an underwater experiment is also conducted in the swimming pool and the result shows that the enhanced image's underwater color image quality evaluation value registers a 12% increment relative to the original image, and its underwater image quality measures value experiences a substantial surge of 173%. © 2024 IEEE.

关键词： Underwater imaging

来源：评论

学校读者我要写书评

暂无评论

Designing current–strain-assisted superconductor–ferromagnet multi-bit memories

引用

Chinese Physics B 2022年第11期31卷 619-625页

作者： Hasnain Mehdi Jafri Jing Wang Xiao-Ming Shi De-Shan Liang Hou-Bing Huang School of Materials Science&Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China

Current superconducting memory devices lack the basic quality of high memory density for practical memories,mainly due to the size limitations of superconducting quantum interference ***,we propose a superconductor–ferromagnet bilayer device with strain-pulse-assisted multi-bit ladder-type memory,by using strain-engineered ferromagnet domain structure to control carrier concentration in the superconductor,which is simulated by coupled Landau–Lifshitz–Gilbert and Ginzburg–Landau ***-and strain-pulses are observed to deterministically control the resistivity of superconductor for one and two-bit device *** average carrier concentration of superconductor is observed to have multiple metastable states that can be controllably switched using current-pulse and strain-pulse to determine multiple resistivity *** findings confirm the eligibility of superconductor–ferromagnet bilayers to be used as ladder-type multibit memories and open a new way for further theoretical and experimental investigations of the cryogenic memories.

关键词： superconductor-ferromagnet bilayer cryogenic memories superconducting memories vortex memories

来源：评论

学校读者我要写书评

暂无评论

Feature Extraction to Evaluate the Quality of Data Using Machine Learning Technique 3

Feature Extraction to Evaluate the Quality of Data Using Mac...

引用

3rd IEEE International Conference on Distributed Computing and Electrical Circuits and Electronics, ICDCECE 2024

作者： Pratheesh, R. Divya, V. School Of Computing Sciences Vels Institute Of Science Technology & Advanced Studies Chennai India School Of Computing Sciences Vels Institute Of Science Technology & Advanced Studies Department Of Information Technology Chennai India

ISBN: (纸本)9798350318609

Data quality analysis is a crucial step in ensuring the reliability and accuracy of data used in machine learning models. The proposed approach utilized with machine learning algorithms to identify outliers in the data. Outliers can indicate errors are anomalies that might affect the quality of the dataset. Data Profiling is used to identify patterns and distributions. Missing Data Imputation predict the missing values. Data Validation and Cleansing, Data Duplication Detection, Inconsistency Detection are considered as the primary analysis to be done. The feature extraction process read the sample test dataset, pre-process the dataset by cleaning the data for data duplication, inconsistency through dynamic algorithms principal component analysis (PCA), Linear Discriminant Analysis (LDA) and independent component analysis (ICA) is considered here. The proposed feature extraction data is further opted for pattern validation through isolated forest algorithm. The performance of the system is evaluated using accuracy, precision, and Recall. The LDA model outperforms with accuracy of 99% for the given testset. © 2024 IEEE.

关键词： Feature extraction

来源：评论

学校读者我要写书评

暂无评论

Selective thermal emission and infrared camouflage based on layered media

引用

Chinese Journal of Aeronautics 2023年第3期36卷 212-219页

作者： Qingxiang JI Xueyan CHEN Vincent LAUDE Jun LIANG Guodong FANG Changguo WANG Rasoul ALAEE Muamer KADIC National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150001China Institute FEMTO-ST CNRSUniversity Bourgogne Franche-Comte´Besanc¸on 25000France Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing 100081China Department of Physics University of OttawaOttawaK1N 6N5Canada Institute of Theoretical Solid State Physics Karlsruhe Institute of TechnologyKarlsruhe D-76131Germany

Infrared camouflage based on artificial thermal metasurfaces has recently attracted significant *** eliminating thermal radiation differences between the object and the background,it is possible to hide a given object from infrared *** camouflage is an important element that increases the survivability of aircraft and missiles,by reducing target susceptibility to infrared guided ***,a simple and practicable design is theoretically presented based on a multilayer film for infrared stealth,with distinctive advantages of scalability,flexible fabrication,and structural *** multilayer medium consists of silicon substrate,carbon layer and zinc sulfide film,the optical properties of which are determined by transfer matrix *** locally changing the thickness of the coating film,the spatial tunability and continuity in thermal emission are demonstrated.A continuous change of emissive power is further obtained and consequently implemented to achieve thermal camouflage *** addition,other functionalities,like thermal illusion and thermal coding,are demonstrated by thickness-engineered multilayer films.

关键词： Heat transfer manipulation Infrared camouflage Multilayer media Selective thermal emission Thermal illusion Transfer matrix method

来源：评论

学校读者我要写书评

暂无评论

High-Resolution Mass Spectroscopy for Revealing the Charge Storage Mechanism in Batteries: Oxamide Materials as an Example

引用

Energy & Environmental Materials 2023年第4期6卷 195-202页

作者： Chenyang Zhang Yuan Chen Kun Fan Guoqun Zhang Jincheng Zou Huichao Dai Yanbo Gao Xiaobo Wang Minglei Mao Chengliang Wang School of Optical and Electronic Information Wuhan National Laboratory for Optoelectronics(WNLO)Optics Valley LaboratoryHuazhong University of Science and TechnologyWuhan 430074China Wenzhou Advanced Manufacturing Technology Research Institute Huazhong University of Science and TechnologyWenzhou 325035China

The pursuit of high-performance electrode materials is highly desired to meet the demand of batteries with high energy and power ***,a deep understanding of the charge storage mechanism is always challenging,which limits the development of advanced electrode ***,high-resolution mass spectroscopy(HR-MS)is employed to detect the evolution of organic electrode materials during the redox process and reveal the charge storage mechanism,by using small molecular oxamides as an example,which have ortho-carbonyls and are therefore potential electrochemical active materials for *** HR-MS results adequately proved that the oxamides could reversibly store lithium ions in the voltage window of 1.5–3.8 *** deeper reduction,the oxamides would decompose due to the cleavage of the C–N bonds in oxamide structures,which could be proved by the fragments detected by HR-MS,^(1)H NMR,and the generation of NH_(3)after the reduction of oxamide by *** work provides a strategy to deeply understand the charge storage mechanism of organic electrode materials and will stimulate the further development of characterization techniques to reveal the charge storage mechanism for developing high-performance electrode materials.

关键词： charge storage mechanism high-resolution mass spectroscopy organic batteries organic electrodes oxamides

来源：评论

学校读者我要写书评

暂无评论

Anti-Diffusion: Preventing Abuse of Modifications of Diffusion-Based Models 39

Anti-Diffusion: Preventing Abuse of Modifications of Diffusi...

引用

39th Annual AAAI Conference on Artificial Intelligence, AAAI 2025

作者： Zheng, Li Xie, Liangbin Zhou, Jiantao Wang, Xintao Wu, Haiwei Tian, Jinyu University of Macau China Shenzhen Institute of Advanced Technology China Kuaishou Technology China Macau University of Science and Technology China

ISBN: (纸本)157735897X

Although diffusion-based techniques have shown remarkable success in image generation and editing tasks, their abuse can lead to severe negative social impacts. Recently, some works have been proposed to provide defense against the abuse of diffusion-based methods. However, their protection may be limited in specific scenarios by manually defined prompts or the stable diffusion (SD) version. Furthermore, these methods solely focus on tuning methods, overlooking editing methods that could also pose a significant threat. In this work, we propose Anti-Diffusion, a privacy protection system designed for general diffusion-based methods, applicable to both tuning and editing techniques. To mitigate the limitations of manually defined prompts on defense performance, we introduce the prompt tuning (PT) strategy that enables precise expression of original images. To provide defense against both tuning and editing methods, we propose the semantic disturbance loss (SDL) to disrupt the semantic information of protected images. Given the limited research on the defense against editing methods, we develop a dataset named Defense-Edit to assess the defense performance of various methods. Experiments demonstrate that our Anti-Diffusion achieves superior defense performance across a wide range of diffusion-based techniques in different scenarios. Copyright © 2025, Association for the Advancement of Artificial Intelligence (***). All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Water-facilitated targeted repair of degraded cathodes for sustainable lithium-ion batteries

引用

SusMat 2024年第2期4卷 28-40页

作者： Jiao Lin Xiaodong Zhang Zhujie Li Ersha Fan Xiaowei Lv Renjie Chen Feng Wu Li Li Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Collaborative Innovation Center of Electric Vehicles in Beijing No.5 South Zhongguancun StreetBeijingChina Advanced Technology Research Institute Beijing Institute of TechnologyJinanChina

Directly repairing end-of-life lithium-ion battery cathodes poses significant chal-lenges due to the diverse compositions of the ***,we propose a water-facilitated targeted repair strategy applicable to various end-of-life batches and *** process involves initiating structural repair and reconstruct-ing particle morphology in degraded LiMn_(2)O_(4)(LMO)through an additional thermal drive post-ambient water remanganization,achieving elemental *** to solid-phase repair,the resulting LMO material exhibits superior electrochemical and kinetic *** theoretical analysis highlights the impact of Mn defects on the structural stability and electron transfer rate of degraded *** propensity of Mn ions to diffuse within the Mn layer,specifically occupying the Mn 16d site instead of the Li 8a site,theoretically sup-ports the feasibility of ambient water ***,this method proves effective in the relithiation of degraded layered cathode materials,yielding single *** combining low energy consumption,environmental friendli-ness,and recyclability,our study proposes a sustainable approach to utilizing spent *** strategy holds the potential to enable the industrial direct repair of deteriorated cathode materials.

关键词： direct repair lithium-ion batteries water-facilitated

来源：评论

学校读者我要写书评

暂无评论

Recent advances in photopolymerization 3D printing of alumina-ceramic

引用

Progress in Natural science:Materials International 2025年第1期35卷 1-30页

作者： M.Irfan Hussain Min Xia XiaoNa Ren Zhen Shen Muhammad Jamil Changchun Ge Institute of Powder Metallurgy and Advanced Ceramics School of Material Science and Engineering University of Science and Technology Beijing State Key Laboratory of Multimodal Artificial Intelligence Systems Beijing Engineering Research Center of Intelligent Systems and Technology Institute of AutomationChinese Academy of Sciences College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics

Digital light processing(DLP) 3D printing has a huge potential for manufacturing intricate and customized ceramic parts with high precision and cost-effectiveness. Research in this field contributes to material innovation,opening the avenues for new process designs in both scientific and industrial sectors. However, the implementation of DLP 3D printing technology in ceramic research has not yet reached the maturity level as that in polymer and tissue engineering. Necessarily, a holistic in-depth literature reporting the successful integration of alumina ceramics within DLP 3D printing technology is urgently needed. This review, systematic examines recent progress in DLP technology, focusing on photopolymer resins that incorporate UV-sensitive monomers, photoinitiators, and dispersants, as well as their synergistic effects on achieving high-quality printing, desirable material properties, and enhanced performance. Further, the review discusses key factors including post-processing characteristics such as debinding and sintering, which influence microstructure, and defect formation including microcracks, porosity and voids. Finally, the challenges associated with printing and sintering are highlighted,aiming to identify focused focused development pathways and potential solution to optimize outcomes. This analysis clarifies existing challenges and also propsoes future applications for DLP technology in the aluminaceramic field.

关键词： Al2O3 ceramics Applications Digital light processing (DLP) Post-processing Resin

来源：评论

学校读者我要写书评

暂无评论

Interpretability of compound drought-hot extreme index prediction model: a regional study in Iran

引用

Environmental science and Pollution Research 2025年第14期32卷 8850-8872页

作者： Moghaddasi, Mahnoosh Naderi, Kimia Moradi, Mansour Anvari, Sedigheh Department of Water Science and Engineering Faculty of Agriculture and Environment Arak University Arak Iran Research Institute for Water Science and Engineering Arak University Arak Iran Tehran Iran Department of Ecology Institute of Science and High Technology and Environmental Science Graduate University of Advanced Technology Kerman Iran

This study aims to predict a new composite drought-hot extreme index (CDHEI) that combines the standardized maximum temperature index (SMTI) and standardized precipitation index (SPI) in different climates across Iran. To this end, daily climatic data were sourced from 40 synoptic stations for the 1987–2019 period. Then, to monitor the mentioned indices simultaneously, a coupled function was employed to develop CDHEI for each climate. Three machine learning (ML) models—namely decision tree (DT), ensemble, and multilayer perceptron (MLP)—were developed to model CDHEI under three scenarios. Since machine learning models are inherently characterized by a "black box" nature, this study employed Ceteris paribus and partial dependence (CP-PD) profiles. The assessment of concurrent historical droughts and hot extremes was conducted by considering the CDHEI values and relevant categories in different climatic regions of Iran from 1998 to 2000. The results illustrated the effectiveness of the suggested index in monitoring the simultaneous occurrence of droughts and hot extreme events across different time frames and geographical areas. The most accurate ensemble model, with average values ranging from 0.1247 to 0.2047 and 0.9282 to 0.9674 (normalized root mean square error (NRMSE) and correlation coefficient (R), respectively), was the one that performed the best at the climatic zones. The CP-PD profile values demonstrated that maximum temperature had a significant effect on the model’s results across all climates in scenario 2. In scenario 3, however, SPI and SMTI proved to be the most influential features. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Mean square error

来源：评论

学校读者我要写书评

暂无评论

Constructing highly safe and long-life calcium ion batteries based on hydratedvanadium oxide cathodes featuring a pillar structure

引用

Rare Metals 2024年第6期43卷 2597-2612页

作者： Chun-Fang Wang Shi-Wei Zhang Lan Huang Yuan-Min Zhu Feng Liu Jian-Chuan Wang Li-Ming Tan Chun-Yi Zhi Cui-Ping Han Powder Metallurgy Research Institute Central South UniversityChangsha410083China Songshan Lake Materials Laboratory Dongguan 523808China Research Institute of Interdisciplinary Science and School of Materials Science and Engineering Dongguan University of TechnologyDongguan 523808China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Faculty of Materials Science and Energy Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Calcium-ion batteries(CIBs)have generated intense interest due to the growing demand for safer,cheaper,and large-scale energy storage ***,their development is still in its infancy,owing to the lack of suitable cathodes for sustaining reversiblc Ca^(2+)intercalation/***,layered H_(2)V_(3)O_(8)(HVO)with Zn^(2+)pre-insertion(ZHVO)is reported as a high-rate and highly durable cathode material for *** existence of Zn^(2+)and H_(2)O pillars could expand the interlayer spacing up to 1.8 nm,which is favorable for the diffusion of bulky Ca^(2+).The formation of Zn-O bonds facilitates electron transfer and enhances electrical ***,the ZHVO cathode achieves superior capacity performance(213.9 mAh·g^(-1)at 0.2 A·g^(-1))and long lifespan(78.3%for 1,000 cycles at 5 A·g^(-1))compared to pristine *** functional theory(DFT)calculations revealed that Zn^(2+)moved during Ca^(2+)intercalation,thereby reducing the diffusion energy barrier and facilitating Ca^(2+)***,a safe aqueous calcium ion cell was successfully assembled.

关键词： Multivalent batteries Calcium-ion batteries Layered structure Vanadium oxide Cathode materials

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：