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Efficient removal of U(VI) from wastewater by a sponge-like 3D porous architecture with hybrid electrospun nanofibers

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Water science and engineering 2024年第2期17卷 150-156页

作者： Lin Hu Lin Chen Xian-kun Wu Rui Luo Rong-guan Lv Zheng-hao Fei Feng Yang School of Chemistry and Environmental Engineering Yancheng Teachers UniversityYancheng 224051China Jiangsu Province Engineering Research Center of Agriculural Breeding Pollution Control and Resource Yancheng 224051China Jiangsu Nanda Huaxing Science and Technology of Environmental Protection Co.Ltd. Yancheng 224001China

Removal of uranium(VI)from nuclear wastewater is urgent due to the global nuclear energy *** study synthesized novel sponge-like 3D porous materials for enhanced uranium adsorption by combining electrospinning and fibrous freeze-shaping *** materials possessed an organic-inorganic hybrid architecture based on the electrospun fibers of polyacrylonitrile(PAN)and SiO_(2).As a sup-porting material,the surface of fibrous SiO_(2) could be further functionalized by cyano groups via(3-cyanopropyl)*** the cyano groups were turned into amidoxime(AO)groups to obtain a amidoxime-functionalized sponge(PAO/SiO_(2)-AO)through the subsequent ami-doximation *** proposed sponge exhibited enhanced uranium adsorption performance with a high removal capacity of 367.12 mg/g,a large adsorption coefficient of 4.0×10^(4)mL/g,and a high removal efficiency of 97.59%.The UO_(2)^(2+)adsorption kinetics perfectly conformed to the pseudo-second-order *** sorbent also exhibited an excellent selectivity for UO_(2)^(2+) with other interfering metal ions.2023 Hohai *** and hosting by Elsevier B.V.

关键词： Uranium removal Sponge Amidoximation Organic-inorganic hybrid structure Electrospinning

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IEARACDA: Predicting circRNA-disease associations based on information enhancement and arctangent rank approximation

IEARACDA: Predicting circRNA-disease associations based on i...

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2024 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2024

作者： Pang, Shanchen Song, Zheqi Liu, Tiyao Wu, Wenhao Zhang, Yuanyuan Wang, Shudong College of Computer Science and Technology Qingdao Institute of Software Qingdao China Qingdao University of Technology School of Information and Control Engineering Qingdao China

ISBN: (纸本)9798350386226

Circular RNAs (circRNAs) are non-coding RNA molecules that play a significant role in cell regulation and disease occurrence. In recent years, the use of computational methods to predict circRNAs associated with diseases has become a research focus. However, these methods are often constrained by the noise interference and an insufficient exploration of the underlying information in known associations. Therefore, this paper proposes an information enhancement and arctangent rank approximation based method to predict potential circRNA-disease associations (IEARACDA). Firstly, information enhancement methods are used to make circRNA and disease similarity information more complete and to reduce the sparsity of known association. Subsequently, the arctangent rank approximation method is employed to mitigate the potential bias issues that may arise from the nuclear norm, and optimization is carried out using the inexact augmented Lagrange multiplier (IALM) method. Finally, potential associations are predicted through heterogeneous graph inference method. The experimental results demonstrate that IEARACDA exhibits superior performance compared to existing methods. Furthermore, case studies for hepatocellular carcinoma and lung cancer provide additional confirmation of the accuracy and practical significance of the model predictions. © 2024 IEEE.

关键词： Lung cancer

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Synergistic enhancement of pollutant removal from high-salt wastewater using coagulation-flotation combined process

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Green Chemical engineering 2025年第3期6卷 410-419页

作者： Enze Li Jing Dong Yongsheng Jia Zihe Pan Hongzhou Lv Zhiping Du Guandao Gao Fangqin Cheng Institute of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste ResourcesShanxi Laboratory of Yellow RiverShanxi UniversityTaiyuan030006China School of Environmental Science&Engineering Huazhong University of Science and TechnologyWuhan430074China State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing210023China

Sufficient treatment of industrial organic wastewater with high salt and large amounts of suspended particulate matter remains a challenge *** this work,a novel coagulation-flotation combined process was developed to treat the suspended particles as well as significantly reduce organic pollutants content in the actual high-salt organic *** typical inorganic and organic flocculants(poly aluminum chloride(PAC),poly ferric sulfate(PFS),polyacrylamide(PAM),and modified cationic starch(CS))were selected for compounding to obtain an optimized flocculation system for high-salt *** results showed that the PAC-PAM with a 10:1 ratio in mass exhibited the best coagulation behaviors with the removal efficiency of turbidity and chemical oxygen demand(COD)being 95.33%and 9.21%,respectively,under the optimal operation conditions,and the sedimentation process of coagulant conformed to the quasi-second-order *** PAC-PAM flocs exhibited stronger netting,sweeping,and adsorption bridging capabilities,which were conducive to removing suspended *** the flotation was conducted after coagulation,the COD decreased significantly by 20.82%.In addition,this combined process could reduce the treatment time by 50%compared to the process with only coagulation *** the flotation process,floc particles companies with hydrophobic polycyclic aromatic hydrocarbons could collide and adhere to microbubbles and be floated to the surface,resulting in an effective reduction of *** work could provide a novel strategy and step forward to design and optimize the pretreatment process engineering for organic high-salt wastewater.

关键词： High-salt organic wastewater Coagulation-flotation combined process Sedimentation kinetics Bubble-floc aggregate

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Traffic Network Modeling for Airway Segments Based on Association Rule Mining 6

Traffic Network Modeling for Airway Segments Based on Associ...

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6th International Conference on Communications, Information System and Computer engineering, CISCE 2024

作者： Zhang, Mingyu Wen, Xiangxi Wu, Minggong Zhang, Chen Air Traffic Control and Navigation College Air Force Engineering University Xi'an China School of Transportation Science and Engineering Civil Aviation University of China Tianjin China

ISBN: (纸本)9798350353174

Flight safety is the primary task of the aviation industry, to improve the flight flow under the premise of ensuring safety is the current aviation research hotspot. In order to effectively optimize the airport route segment network and improve the route segment flight aircraft flow. This paper realizes the associated data mining by improving the FP-Growth algorithm, aiming to realize the suitability of the flight traffic of airport group route segments with the required route segment network. The simulation experiments are based on the route segment peak day traffic dataset, and 50 key route segments are mined according to the correlation analysis, and the route segment network model is constructed and the network characteristics are analyzed. The results show that the key route segment network mined by the improved FP-Growth algorithm has better connectivity and robustness, which provides a new idea for the research of airport cluster route segment network. © 2024 IEEE.

关键词： Airport vehicular traffic

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Superpixel Edge Refinement and Differential Feature Enhancement for Transformer-Based Remote Sensing Image Change Detection 6

Superpixel Edge Refinement and Differential Feature Enhancem...

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6th International Conference on Robotics, Intelligent control and Artificial Intelligence, RICAI 2024

作者： Liang, Jingjing Xie, Xinlin Cui, Tihao Zhang, Haoxue Shanxi Provincial Key Laboratory of Advanced Control Industrial Intelligence School of Electronic Information Engineering Taiyuan University of Science and Technology Taiyuan China

ISBN: (纸本)9798331541699

Change detection in remote sensing images is a challenging task, particularly when identifying small and complex objects such as buildings. The task is often hindered by issues such as high fragmentation rates, blurred edges, and elevated false and missed detection rates. These issues arise due to the inherent complexity of the scenes and the problem of class imbalance. To address these challenges, we propose a superpixel edge refinement and differential feature enhancement for Transformer-based change detection networks. First, a region-enhanced Transformer encoder is introduced, incorporating a superpixel edge refinement module. This module leverages pixel-level features extracted by the Transformer to generate superpixel feature embeddings, thereby enhancing local and edge information. Second, a differential feature enhancement module is designed to emphasize true change regions while suppressing pseudo-change areas. This is achieved through a dual-branch structure comprising feature enhancement and change extraction, further augmented by a saliency module. Finally, a Dice loss function is employed as an auxiliary loss term, complementing the cross-entropy loss in the construction of an edge-optimized loss function. The resulting loss function aims to balance overall detection accuracy with edge refinement. The proposed algorithm was evaluated on the widely used datasets LEVIR-CD and DSIFN-CD. Compared to existing algorithms, the proposed method effectively improved edge detail and overall consistency while maintaining detection accuracy. Additionally, false detections and missed detections were reduced. © 2024 IEEE.

关键词： Superpixels

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Kinetic Analysis on Pyrolysis Characteristics of Butene Isomer Fuels with CO_(2) Additions

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Journal of Thermal science 2022年第5期31卷 1604-1621页

作者： CHEN Chen ZHAO Rui YING Yaoyao LIU Dong MIIT Key Laboratory of Thermal Control of Electronic Equipment School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing210094China Advanced Combustion Laboratory School of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing210094China

This article compared the pyrolysis characteristics of butene isomer fuels(n-butene,trans-2-butene,isobutene)under CO_(2) *** focus of the study was on the impacts of fuels isomerization and CO_(2) chemistry on the formation of important pyrolysis intermediate products under two temperature conditions(at 1273 K and 1573 K).The results demonstrated that at 1273 K,the concentrations of all products in isobutene pyrolysis were significantly lower than those of the corresponding products formed by the pyrolysis of n-butene and trans-2-butene in the process of fuels *** generation or consumption rate of each species was arranged from high to low as n-butene>trans-2-butene>*** 1573 K,the chemical effect of CO_(2) could inhibit the consumption of ethylene(C_(2)H_(4)),promote the formation of diacetylene(C_(4)H_(2)),and inhibit the formation of acetylene(C_(2)H_(2))and benzene(A_(1)).During the pyrolysis of n-butene at 1573 K,the chemical effect of CO_(2) was mainly reflected in changes of the consumption paths of C_(2)H_(2) and benzyl(A_(1)CH_(2)).For trans-2-butene pyrolysis at 1573 K,CO_(2) addition could change the main consumption paths of methyl(CH_(3)),which then inhibited C_(2)H_(2) *** addition,CO_(2) chemical action significantly changed the consumption paths of C_(4)H_(2) and A_(1) in trans-2-butene pyrolysis at 1573 *** for isobutene pyrolysis at 1573 K,the chemical effect of CO_(2) significantly inhibited the production of A_(1) by changing the main consumption paths of C_(2)H_(2) and propargyl(C_(3)H_(3)).

关键词： butene isomers pyrolysis CO_(2) chemical effect

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Nanostructure and reactivity of soot from biofuel 2,5-dimethylfuran pyrolysis with CO_(2) additions

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Frontiers in Energy 2022年第2期16卷 292-306页

作者： Lijie ZHANG Kaixuan YANG Rui ZHAO Mingfei CHEN Yaoyao YING Dong LIU MIIT Key Laboratory of Thermal Control of Electronic Equipment Advanced Combustion LaboratorySchool of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China

This paper investigated the nanostructure and oxidation reactivity of soot generated from biofuel 2,5-dimethylfuran pyrolysis with different CO_(2) additions and different temperatures in a quartz tube flow *** morphology and nanostructure of soot samples were characterized by a low and a high resolution transmission electron spectroscopy(TEM and HRTEM)and an X-ray diffraction(XRD).The oxidation reactivity of these samples was explored by a thermogravimetric analyzer(TGA).Different soot samples were collected in the tail of the *** the increase of temperature,the soot showed a smaller mean particle diameter,a longer fringe length,and a lower fringe tortuosity,as well as a higher degree of ***,the variation of soot nanostructures resulting from different CO_(2) additions was not *** with 0%,50%,and 100%CO_(2) additions at one fixed temperature,the soot collected from the 10%CO_(2) addition has the highest degree of graphization and *** three temperatures of 1173 K,1223 K,and 1273 K,the mean values of fringe length distribution displayed a ranking of 10%CO_(2)>100%CO_(2)>50%CO_(2) while the mean particle diameters showed the same ***,the oxidation reactivity of different soot samples decreased in the ranking of 50%CO_(2) addition>100%CO_(2) addition>10%CO_(2) addition,which was equal to the ranking of mean values of fringe tortuosity *** result further confirmed the close relationship between soot nanostructure and oxidation reactivity.

关键词： 2 5-dimethylfuran pyrolysis soot CO_(2)addition nanostructure reactivity

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A rehabilitation training action evaluation method based on CTRAMM-VideoPose3D network and LTDTW matching algorithm

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Optoelectronics Letters 2025年

作者：王红一董成贵朱新军宋丽梅李云鹏 Tianjin Key Laboratory of Intelligent Control of Electrical Equipment， School of Artificial Intelligence， Tiangong University Tianjin Key Laboratory of Intelligent Control of Electrical Equipment， School of Control Science and Engineering， Tiangong University

In order to achieve the evaluation of human rehabilitation training movements， a human 3D pose estimation network integrating keyframe enhancement method (KFEM) and CTRAMM module is proposed， and a matching algorithm based on position and type (LTDTW) is developed to evaluate rehabilitation movements. KFEM determines keyframes and adjusts their weights by calculating the coordinate transformation of human key-points. The CTRAMM module dynamically learns different topological structures， improving the feature representation ability of the model. LTDTW improves the accuracy of sequence matching through adaptive weight coefficients. The experimental results on different datasets have validated the effectiveness of the proposed method.

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Highly efficient Hg2+ removal via a competitive strategy using a Co-based metal organic framework ZIF-67

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Journal of Environmental sciences 2022年第9期34卷 33-43页

作者： Jiacheng Zhou Hao Zhang Tianying Xie Ye Liu Qicheng Shen Jie Yang Limei Cao Ji Yang School of Resources and Environmental Engineering State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical ProcessEast China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

The stronger coordination ability of mercury ions with organic ligands than the metal ions in metal organic framework(MOFs) provides an accessible way to separate mercury ions from solution using specific MOFs. In this study, a Co-based MOF(ZIF-67, Co(mIM)) was synthesized. It did not introduce specific functional groups, such as-SH and-NH, into its structure through complicated steps. It separate Hgfrom wastewater with a new strategy, which utilized the stronger coordination ability of Hgwith the nitrogen atom on the imidazole ring of the organic ligand than the Coions. Hgreplaced Conodes from ZIF-67 and formed a more stable precipitate with m IM. The experimental results showed that this new strategy was efficient. ZIF-67 exhibited Hgadsorption capacity of 1740 mg/g, much higher than the known MOFs sorbents. m IMs is the reaction center and ZIF-67 can improve its utilization. The sample color faded from purple to white due to the loss of cobalt ion. It is a great feature of ZIF-67 that allows users to judge whether the sorbent is deactivated intuitively. ZIF-67 can be sustainable recycled by adding organic ligands to the solution after treatment due to its simple synthesis method at room temperature. It’s a high-efficient and sustainable sorbent for Hgseparation from wastewater.

关键词： ZIF-67 Hg2+removal Coordination competition

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RESEARCH ON SYNCHRONOUS OPTIMIZATION AND ANTI-SKID STRATEGY OF AIRCRAFT ANTISKID BRAKING SYSTEM

RESEARCH ON SYNCHRONOUS OPTIMIZATION AND ANTI-SKID STRATEGY ...

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2024 CSAA/IET International Conference on Aircraft Utility Systems, AUS 2024

作者： Sun, Xuefeng Liu, Xiaochao Shang, Yaoxing Bai, Ning Dang, Hao Wang, Zhuangzhuang Beihang University School ofAutomation Science and Electrical Engineering Beijing100191 China Beijing Institute of Control and Electronic Technology Beijing100038 China

In this paper, an aircraft synchronous optimization and synchronous anti-skid control strategy is proposed to reduce the yaw burden during aircraft braking. This study analyses the effect of yaw that may be caused by the friction coefficient of an aircraft during braking. A braking synchronous optimization algorithm is developed that can reduce the skidding phenomenon during the increase pressure process. At the same time, a synchronous anti-skid technology is introduced, which automatically adjusts the braking force by detecting the slip state of the wheels on both sides to reduce the risk of aircraft yawing due to unilateral slip. Through a series of simulations and experiments, it is concluded that the use of synchronous optimization and synchronous anti-skid control strategy can significantly reduce the risk of aircraft running off the runway. © The Institution of engineering & Technology 2024.

关键词： Aircraft control

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