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Xun H, Wang C, Yang Z, Zhang X. A Solar Evaporator Based on Polypyrrole Coated 3D Carbon Nanotube Materials for Efficient Solar-Driven Vapor Generation. Macromol Rapid Commun 2024:e2300744. [PMID: 38480512 DOI: 10.1002/marc.202300744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/23/2024] [Indexed: 03/21/2024]
Abstract
Highly porous light absorbers are fabricated based on polypyrrole (PPy)-coated carbon nanotube (CNT). Carbon nanotube sponge (CNTS) or carbon nanotube array (CNTA) with three-dimensional (3D) network structure is the framework of porous light absorbers. Both PPy@CNTS and PPy@CNTA composites exhibit excellent light absorption of the full solar spectrum. The CNTS and CNTA with porous structures have extremely large effective surface area for light absorption and for water evaporation that has great practical benefit to the solar-driven vapor generation. The PPy layer on CNT sidewalls significantly improves the hydrophilicity of porous CNTS and CNTA. The good wettability of water on CNT sidewalls makes water transport in porous CNT materials highly efficient. The PPy@CNTS and PPy@CNTA light absorbers achieve high water evaporation rates of 3.35 and 3.41 kg m-2 h-1 , respectively, under 1-sun radiation. The orientation of nano channels in CNTA-based light absorbers also plays an important role in the solar-driven vapor generation. The water transport and vapor escape are more efficient in CNTA-based light absorbers as compared to the CNTS-based light absorbers due to the relatively short path for the water transport and the vapor escape in CNTA-based light absorbers.
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Affiliation(s)
- Hao Xun
- Center for Soft Condensed Matter Physics and Interdisciplinary Research & School of Physical Science and Technology, Soochow University, Suzhou, 215006, P. R. China
- Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, P. R China
| | - Chuang Wang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research & School of Physical Science and Technology, Soochow University, Suzhou, 215006, P. R. China
- Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, P. R China
| | - Zhaohui Yang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research & School of Physical Science and Technology, Soochow University, Suzhou, 215006, P. R. China
- Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, P. R China
| | - Xiaohua Zhang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research & School of Physical Science and Technology, Soochow University, Suzhou, 215006, P. R. China
- Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, 215006, P. R China
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Li Z, Shen X, Xun H, Miao Y, Zhang W, Luo P, Liu K. CoopCon: Cooperative Hybrid Congestion Control Scheme for Named Data Networking. IEEE Trans Netw Serv Manage 2023. [DOI: 10.1109/tnsm.2023.3262198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Jazayeri H, Lopez J, Xun H, Lee U, Best D, Reategui A, Phillips S, Urata M, Dorafshar A. Assessment of Clinical Outcomes in Open Reduction and Internal Fixation of Mandibular Condyle Fractures Compared to Closed Treatment. J Oral Maxillofac Surg 2021. [DOI: 10.1016/j.joms.2021.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Luo X, Feng L, Xun H, Zhang Y, Li Y, Yin L. Rinegan: A Scalable Image Processing Architecture for Large Scale Surveillance Applications. Front Neurorobot 2021; 15:648101. [PMID: 34497501 PMCID: PMC8420968 DOI: 10.3389/fnbot.2021.648101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Image processing is widely used in intelligent robots, significantly improving the surveillance capabilities of smart buildings, industrial parks, and border ports. However, relying on the camera installed in a single robot is not enough since it only provides a narrow field of view as well as limited processing performance. Specially, a target person such as the suspect may appear anywhere and tracking the suspect in such a large-scale scene requires cooperation between fixed cameras and patrol robots. This induces a significant surge in demand for data, computing resources, as well as networking infrastructures. In this work, we develop a scalable architecture to optimize image processing efficacy and response rate for visual ability. In this architecture, the lightweight pre-process and object detection functions are deployed on the gateway-side to minimize the bandwidth consumption. Cloud-side servers receive solely the recognized data rather than entire image or video streams to identify specific suspect. Then the cloud-side sends the information to the robot, and the robot completes the corresponding tracking task. All these functions are implemented and orchestrated based on micro-service architecture to improve the flexibility. We implement a prototype system, called Rinegan, and evaluate it in an in-lab testing environment. The result shows that Rinegan is able to improve the effectiveness and efficacy of image processing.
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Affiliation(s)
- Xi Luo
- Cyber Space Institute of Advanced Technology, Guangzhou University, Guangzhou, China
| | - Lei Feng
- Cyber Space Institute of Advanced Technology, Guangzhou University, Guangzhou, China
| | - Hao Xun
- Cyber Space Institute of Advanced Technology, Guangzhou University, Guangzhou, China
| | - Yuanfei Zhang
- Cyber Space Institute of Advanced Technology, Guangzhou University, Guangzhou, China
| | - Yixin Li
- School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China
| | - Lihua Yin
- Cyber Space Institute of Advanced Technology, Guangzhou University, Guangzhou, China
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Xun H, Li K, Li X, Liu Y, Du X, Qin Z. Direct percutaneous puncture digital-subtraction-angiography-based classification and treatment selection for soft-tissue arteriovenous malformations of maxillofacial region: a retrospective study. Int J Oral Maxillofac Surg 2018; 48:181-186. [PMID: 30287107 DOI: 10.1016/j.ijom.2018.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/12/2018] [Accepted: 07/30/2018] [Indexed: 10/28/2022]
Abstract
Treatment of arteriovenous malformations (AVMs) should be individualized based on the imaging findings. A total of 117 AVM cases were categorized into three types based on the angio-architectural characteristics: Type I (n=14, no draining vein or diameter of the draining vein <2mm); Type II (n=64, draining vein diameter 2-6mm); and Type III (n=39, draining vein diameter >6mm). Subjects were randomly allocated to one of two treatment groups: Group A (n=59) received multipoint percutaneous ethanol injection (MPEI), while Group B (n=58) received super-selective angiograms followed by embolization with gelfoam (EFAG) plus MPEI. Patients were followed up for 2-6 years. A significant between-group difference with respect to treatment outcomes was observed only for Type III cases (P<0.05). Direct percutaneous puncture digital-subtraction-angiography-guided classification of AVMs provides easy-to-follow guidelines for its clinical management. EFAG plus MPEI with reduced procedure time and the amount of ethanol should be used for Type III AVMs.
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Affiliation(s)
- H Xun
- Department of Radiology, Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China
| | - K Li
- Hemangioma Specialized Department of Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China
| | - X Li
- Department of Radiology, Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China
| | - Y Liu
- Department of Radiology, Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China
| | - X Du
- Department of Radiology, Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China
| | - Z Qin
- Hemangioma Specialized Department of Linyi Tumour Hospital, Linyi, Shandong 276001, People's Republic of China.
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Wen HQ, Shi J, Xun H, Deng HP. [Distribution, dissemination and removal of antibiotic resistant genes (ARGs) in the aquatic environment]. Ying Yong Sheng Tai Xue Bao 2015; 26:625-635. [PMID: 26094482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In recent years, the intensive use of antibiotics induces the development of antibiotic resistant genes (ARGs), which is an increasingly critical problem affecting human health, and the potential toxic effects of the ARGs have drawn great attention all over the world. This review gave an overview of the occurrence, potential sources, fate and ecological risks of ARGs in the environment. What's more, the removal of ARGs by different treatment processes such as sludge digestion, constructed wetland, disinfection and advanced treatments were assessed, and the improving directions of different treatment processes were also pointed out. Additionally, the highlights in need for further research were proposed based on the current pollution status.
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Rosendal S, Devenish J, MacInnes JI, Lumsden JH, Watson S, Xun H. Evaluation of heat-sensitive, neutrophil-toxic, and hemolytic activity of Haemophilus (Actinobacillus) pleuropneumoniae. Am J Vet Res 1988; 49:1053-8. [PMID: 3421527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cytotoxic and hemolytic activity of Haemophilus (Actinobacillus) pleuropneumoniae serotype 1 strain CM5 was investigated because of the potential role as a virulence determinant. Viable bacteria were toxic for porcine and bovine neutrophils, whereas bacteria killed by heat treatment at 60 C for 1 hour were not. Similarly, bacteria-free culture supernatant was cytotoxic and hemolytic in assays that used porcine neutrophils and erythrocytes, whereas supernatant treated at 60 C for 1 hour had no activity. Erythrocytes from various species were susceptible to the hemolytic activity of bacteria-free culture supernatant, with ovine and bovine erythrocytes being most sensitive. The neutrophil-toxic and hemolytic activity of bacteria-free culture supernatant was inhibited by cholesterol and oxygen and abolished after trypsin digestion. The neutrophil-toxic and hemolytic activity was preserved during storage at or less than 4 C, but was lost rapidly at 56 C or 80 C. Neutralizing antibodies were demonstrated in serum of pigs and rabbits immunized with 10-fold concentrated culture supernatant of strain CM5 and in field pigs that had recovered from natural infection with H pleuropneumoniae serotype 1. Bacteria-free culture supernatants of 18 strains, including H pleuropneumoniae serotypes 1 through 10, Actinobacillus suis, and Haemophilus taxon minor group, were tested for heat-sensitive, neutrophil-toxic, and hemolytic activity. Fifteen strains were neutrophil toxic, but only 10 of these were hemolytic. Haemophilus pleuropneumoniae, serotype 1, strain VLS557; serotype 5, strain K17; and Haemophilus taxon minor group strain 33PN were neither cytotoxic nor hemolytic.
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Affiliation(s)
- S Rosendal
- Department of Veterinary Microbiology and Immunology, Ontario Veterinary College, University of Guelph, Ontario, Canada
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