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Image Fusion Based on Bioinspired Rattlesnake Visual Mechanism Under Lighting Environments of Day and Night Two Levels

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Journal of Bionic engineering 2024年第3期21卷 1496-1510页

作者： Yong Wang Hongmin Zou College of Communication engineering Jilin UniversityChangchun130012China

This study,grounded in Waxman fusion method,introduces an algorithm for the fusion of visible and infrared images,tailored to a two-level lighting environment,inspired by the mathematical model of the visual receptive field of rattlesnakes and the two-mode cells'*** research presented here is segmented into three *** the first segment,we design a preprocessing module to judge the ambient light intensity and divide the lighting environment into two levels:day and *** second segment proposes two distinct network structures designed specifically for these daytime and nighttime *** the daytime images,where visible light information is predominant,we feed the ON-VIS signal and the IR-enhanced visual signal into the central excitation and surrounding suppression regions of the ON-center receptive field in the B channel,***,for nighttime images where infrared information takes precedence,the ON-IR signal and the Visual-enhanced IR signal are separately input into the central excitation and surrounding suppression regions of the ON-center receptive field in the B *** outcome is a pseudo-color fused *** third segment employs five different no-reference image quality assessment methods to evaluate the quality of thirteen sets of pseudo-color images produced by fusing infrared and visible *** images are then compared with those obtained by six other methods cited in the relevant *** empirical results indicate that this study's outcomes surpass the comparative results in terms of average gradient and spatial *** one or two sets of fused images underperformed in terms of standard deviation and entropy when compared to the control *** sets of fused images did not perform as well as the comparison in the QAB/F *** conclusion,the fused images generated through the proposed method show superior performance in terms of scene detail,visual perception,and image sharpness

关键词： Rattlesnake Visible image Infrared image Daylight Bionic

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通过应变工程提高有机半导体的迁移率

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Science China Materials 2024年第2期67卷 665-671页

作者：汪兆锋武显硕杨书院姚佳荣沈贤锋高丕超姚惜梦曾东李荣金胡文平 Key Laboratory of Organic Integrated Circuit Ministry of Education&Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistrySchool of ScienceTianjin UniversityTianjin 300072China Collaborative Innovation Center of chemical Science and engineering(Tianjin) Tianjin 300072China engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education Shanxi Datong UniversityDatong 037009China

有机半导体(OSCs)是推动柔性电子发展的关键.然而,其应用一直受到其较低迁移率的阻碍.虽然分子工程和器件工程可以提高OSC迁移率,但近年来进展几乎停滞不前.本研究揭示了有机半导体在应变下的层数依赖电荷输运特性,并通过应变工程可大... 详细信息

有机半导体(OSCs)是推动柔性电子发展的关键.然而,其应用一直受到其较低迁移率的阻碍.虽然分子工程和器件工程可以提高OSC迁移率,但近年来进展几乎停滞不前.本研究揭示了有机半导体在应变下的层数依赖电荷输运特性,并通过应变工程可大幅提高其迁移率.施加应变可以减小分子间π-π间距并减少电子-声子散射,从而提高电荷输运效率.我们观察到应变因子和材料厚度之间存在直接相关性,较薄的晶体具有较高的应变因子.使用分子级薄的二维分子晶体,我们观察到迁移率显著提高了58%.我们的研究结果为提高有机半导体的迁移率开辟了新的途径.

关键词： 2D molecular crystal organic field-effect transistor mobility strain engineering

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Multidimensional regulation of Ti-Zr-Cr-Mn hydrogen storage alloys via Y partial substitution

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Nano Research 2024年第5期17卷 4211-4220页

作者： Haixiang Xiu Wanqiang Liu Dongming Yin Nan Ding Wenfeng Qiao Shaolei Zhao Long Liang Cong Liu Shaohua Wang Qingshuang Wang Bingbing Chen Limin Wang Yong Cheng School of Materials Science and engineering Changchun University of Science and TechnologyChangchun 130022China State Key Laboratory of Rare Earth Resources Utilization Changchun Institute of Applied ChemistryChinese Academy of Sciences(CAS)Changchun 130022China School of Applied Chemistry and engineering University of Science and Technology of ChinaHefei 230026China department of Energy Science and engineering Nanjing Tech UniversityNanjing 211816China National engineering Research Center of Nonferrous Metals Materials and Products for New Energy GRINM Group Co.Ltd.Beijing 100088China GRIMAT engineering Institute Co. Ltd.Beijing 101407China College of Life Science and Technology Changchun University of Science and TechnologyChangchun 130022China

High density and safe storage of hydrogen are the preconditions for the large-scale application of hydrogen ***,the hydrogen storage properties of Ti_(0.6)Zr_(0.4)Cr_(0.6)Mn_(1.4) alloys are systematically studied by introducing Y element instead of Ti element through vacuum arc *** the partial substitution of Y,a second phase of rare earth oxide is added in addition to the main suction hydrogen phase,C14 Laves *** to the unique properties of rare earth elements,the partial substitution of Y can not only improve the activation properties and plateau pressure of the alloys,but also increase the effective hydrogen storage capacity of the *** comprehensive properties of hydrogen storage alloys are improved by multidimensional regulation of rare earth *** them,Ti_(0.552)Y_(0.048)Zr_(0.4)Cr_(0.6)Mn_(1.4) has the best comprehensive *** alloy can absorb hydrogen without activation at room temperature and 5 MPa,with a maximum hydrogen storage capacity of 1.98 wt.%.At the same time,it reduces the stability of the hydride and the enthalpy change value,making it easier to release *** theoretical analysis and first-principle simulation,the results show that the substitution of Y element reduces the migration energy barrier of hydrogen and the structural stability of the system,which is conducive to hydrogen *** alloy has superior durability compared to the original alloy,and the capacity retention rate was 96.79%after 100 hydrogen absorption/desorption cycles.

关键词： AB_(2)-type hydrogen storage alloy rare earth element first-principles simulation multidimensional regulation

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Q-Learning-Assisted Meta-Heuristics for Scheduling Distributed Hybrid Flow Shop Problems

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Computers, Materials & Continua 2024年第9期80卷 3573-3589页

作者： Qianyao Zhu Kaizhou Gao Wuze Huang Zhenfang Ma Adam Slowik Institute of Systems engineering Macao University of Science and TechnologyMacao99078China department of Electronics and Computer Science Koszalin University of TechnologyKoszalin75-453Poland

The flow shop scheduling problem is important for the manufacturing *** flow shop scheduling can bring great benefits to the ***,there are few types of research on Distributed Hybrid Flow Shop Problems(DHFSP)by learning assisted *** work addresses a DHFSP with minimizing the maximum completion time(Makespan).First,a mathematical model is developed for the concerned ***,four Q-learning-assisted meta-heuristics,e.g.,genetic algorithm(GA),artificial bee colony algorithm(ABC),particle swarm optimization(PSO),and differential evolution(DE),are *** to the nature of DHFSP,six local search operations are designed for finding high-quality solutions in local *** of randomselection,Q-learning assists meta-heuristics in choosing the appropriate local search operations during ***,based on 60 cases,comprehensive numerical experiments are conducted to assess the effectiveness of the proposed *** experimental results and discussions prove that using Q-learning to select appropriate local search operations is more effective than the random *** verify the competitiveness of the Q-learning assistedmeta-heuristics,they are compared with the improved iterated greedy algorithm(IIG),which is also for solving *** Friedman test is executed on the results by five *** is concluded that the performance of four Q-learning-assisted meta-heuristics are better than IIG,and the Q-learning-assisted PSO shows the best competitiveness.

关键词： Distributed scheduling hybrid flow shop meta-heuristics local search Q-learning

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Automated screening of primary cell-based aptamers for targeting and therapy of pancreatic cancer

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Chinese chemical Letters 2024年第2期35卷 300-304页

作者： Zhukang Guo Baijiang Jin Yile Fang Lian Jin Song Li Yan Deng Zhu Chen Hui Chen Yuanying Zhang Rabia Usman Nongyue He State Key Laboratory of Digital Medical engineering School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Hunan Key Laboratory of Biomedical Nanomaterials and Devices Hunan University of TechnologyZhuzhou 412007China department of Molecular Biology Jiangsu Cancer HospitalNanjing 210009China

Although it has been developed for many years, nucleic acid aptamer screening technology still fails to be widely used, a considerable part of it is due to the variability of tumor cell morphology, which leads to the use of immortalized cell lines in the laboratory to screen nucleic acid aptamers for recognition ability of tumor cells in the diseased *** address this, primary cells that can be stably passaged were isolated and extracted from spontaneous tumors of genetically engineered pancreatic ductal adenocarcinoma model mice in this ***, an automated screening instrument for nucleic acid aptamers developed autonomously by our group was used to perform efficient aptamer screening using a limited number of cells, and the obtained nucleic acid aptamers were affinity verified at the cellular ***, to answer the question of the cell growth environment difference on the recognition ability of nucleic acid aptamers, we verified its targeting ability to tumors in vivo on a nude mice xenograft tumor model, and further used a common antitumor drug doxorubicin combined with nucleic acid aptamers to verify the drug loading ability of this aptamer combined with the targeting therapeutic ability.

关键词： Aptamer Cell-SELEX Automatic instrument Combination therapy Pancreatic cancer

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

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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

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Hollow tubes constructed by carbon nanotubes self-assembly for CO_(2) capture

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Journal of Central South University 2024年第7期31卷 2256-2267页

作者： CHEN Xu-rui WU Jun GU Li CAO Xue-bo College of Chemistry and Materials Science Zhejiang Normal UniversityJinhua 321004China College of Biological Chemical Sciences and EngineeringJiaxing UniversityJiaxing 314001China College of Materials and Textile engineering Jiaxing UniversityJiaxing 314001China College of Advanced Materials engineering Jiaxing Nanhu UniversityJiaxing 314001China

Carbon nanotubes(CNTs)have garnered significant attention in the fields of science,engineering,and medicine due to their numerous *** initial step towards harnessing the potential of CNTs involves their macroscopic *** present study employed a gentle and direct self-assembly technique,wherein controlled growth of CNT sheaths occurred on the metal wire’s surface,followed by etching of the remaining metal to obtain the hollow tubes composed of *** controlling the growth time and temperature,it is possible to alter the thickness of the CNTs *** immersing in a solution containing 1 g/L of CNTs at 60℃ for 24 h,the resulting CNTs layer achieved a thickness of up to 60μ*** hollow CNTs tubes with varying inner diameters were prepared through surface reinforcement using polymers and sacrificing metal wires,thereby exhibiting exceptional attributes such as robustness,flexibility,air tightness,and high adsorption capacity that effectively capture CO_(2) from the gas mixture.

关键词： carbon nanotubes self-assembly hollow tubes CO_(2) capture

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Advances in the Study of Anoectochilus Roxburghii Extracts and Prospects for Cosmetic Application Potentials

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China Detergent & Cosmetics 2024年第1期9卷 45-53页

作者： Liu Xiaochun Chen Laicheng Yang Zhanhong Zou Jie School of Chemistry and chemical engineering Guangdong Pharmaceutical UniversityChina Guangzhou Hemgathion Biotechnology Co. Ltd.China

Cosmetics made from natural ingredients are becoming more and more common because they contain bioactive compounds that provide many health benefits,are more environmentally friendly and *** roxburghii(AR)is a precious Chinese herb in China,possessing bioactive components including flavonoids,polysaccharides,volatile oils,kinsenoside,*** to its unique bioactivity and high safety,the prospect of development and utilization is very *** this paper,the extraction,separation and purification techniques of AR’s flavonoid,polysaccharides,volatile oils and kinsenoside are briefly ***,we discusses their conformational relationships in cosmetics with antioxidant,whitening,antibacterial and soothing effect,and looks forward to the study of Anoectochilus roxburghii in the field of cosmetics,with a view to providing references to the development and utilization of this resource in the field of cosmetics.

关键词： Anoectochilus roxburghii extract Anoectochilus roxburghii polysaccharides Anoectochilus flavonoids cosmetic efficacy

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Exploring the characteristics of microbial community and enzyme activity in the aged refuse landfill environment of Taiyuan, China

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Pedosphere 2024年第5期34卷 879-891页

作者： Fen HOU Junjie DU Yuzhou MENG Xihui WU department of Land Resource Management School of Public Administration Shanxi University of Finance and Economics College of Life Science Shanxi Engineering Research Center of Microbial Application Technologies Shanxi Normal University

Municipal solid waste landfill is the main disposal option for domestic garbage, in which microbial activities play an important role. However, despite the widespread practice of landfilling, the metagenomic microbial profiles of landfill sites remain poorly characterized. In this study, we used a combination of physicochemical analysis, ultraviolet-visible spectrophotometry, and high-throughput Illumina shotgun sequencing to systematically investigate the changes in soil enzyme activities, microbial community structure, and functional attributes in aged refuse collected from the Xingou Municipal Solid Waste Landfill in Taiyuan, China, with ordinary topsoil from an area within 5 km of the landfill as control soil. Except for neutral phosphatase (P=0.065), the activities of urease, laccase, dehydrogenase, sucrase, neutral protease, and β-glucosidase were all significantly reduced (P <0.05) in the aged refuse compared with the control soil. Contrastingly, catalase activity was found to be significantly elevated in the aged refuse. Compared with the control soil, aged refuse was characterized by higher richness and diversity of microbial communities, as reflected by the higher values of community richness estimators (Chao 1 and ACE) and diversity indices (Shannon and Simpson). In total, 186 phyla, 4 354 genera, and 34 459 species were identified, with 132 phyla, 1 914 genera, and7 369 species showing significantly different abundances between the aged refuse and the control soil. Actinobacteria and Acidobacteria were identified as the dominant phyla in the control soil, whereas Proteobacteria, Euryarchaeota (archaea), and Firmicutes were found to predominate in the aged ***, Euryarchaeota and Methanoculleus were the major taxa detected in the aged refuse, but were almost completely absent in the control soil. Xenobiotic biodegradation and bacterial chemotaxis were the main functions of the microflora in the aged refuse, whereas the carbohydrate, amino acid,

关键词： functional attribute metabolism pathway municipal solid waste landfill resource utilization soil microflora

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A low-cost wide bandgap polymer based on carboxylate substituted thiazole enables efficient organic solar cells with remarkable batch-to-batch reproducibility

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Science China Chemistry 2024年

作者： Xiaodong Zhu Yuchen Lei Jianhong Gao Yanjun He Jinsicheng Liu Qian Guo Xiang Gao Liwei Xiong Xunchang Wang Renqiang Yang Zhitian Liu Hubei engineering Technology Research Center of Optoelectronic and New Energy Materials Hubei Key Laboratory of Plasma Chemistry and Advanced MaterialsSchool of Materials Science and EngineeringWuhan Institute of Technology Key Laboratory of Optoelectronic chemical Materials and Devices (Ministry of Education) School of Optoelectronic Materials&TechnologyJianghan University

Constructing the low-cost, high-efficiency, and good batch-to-batch reproducibility polymer donor is vitally important for the application of organic solar cells. Herein, we develop a structurally simple carboxylate-substituted thiazole as an electronwithdrawing building block to construct a low-cost polymer, PBTTzE, containing a facilely prepared chlorinated benzo[1,2-b:4,5-b′]dithiophene(BDTCl) donor unit. Benefiting from synergistic electron deficient effects of chlorination and ester group and C=N, as well as the noncovalent interaction of S···O and S···N, PBTTzE exhibits a deep HOMO energy level(-5.59 eV),and a planar skeleton structure. When combined with the IT-4F acceptor, the polymer(54 kDa) demonstrated a champion PCE of15.87%, which is the highest value in the IT-4F-based binary devices to date. Moreover, PBTTzE exhibits excellent batch-tobatch reproducibility due to its very similar PCEs within a range of 43–76 kDa. In addition, an alloyed state and complementary absorption can be formed between PM6 and PBTTzE. Therefore, in a ternary device with PBTTzE added to the PM6:BTP-eC9blend, a top PCE of 18.76% is achieved due to the suppressed energy loss, prolonged exciton diffusion distance, and improved charge transport. Our work demonstrates that the carboxylate-substituted thiazole is a highly promising acceptor unit for constructing low-cost and high-performance polymers.

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