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学者姓名:王波
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Abstract :
Tungsten (W) is considered the prime candidate for plasma-facing materials (PFMs) in future fusion devices. However, the surface blistering induced by hydrogen isotope irradiation can significantly alter the surface morphology of W, thereby severely impacting its service lifetime. Recent studies have shown that high entropy alloys (HEAs) exhibit excellent radiation resistance. This work focuses on investigating the H+ irradiation effects on low-activity W-based HEAs. A composite target was prepared using a splicing method, and WTaZrCrVTiAl HEA films with an amorphous structure were deposited by magnetron sputtering. Comparative experiments on the HEA film and pure W film under H+ irradiation conditions revealed that the blister dose threshold of the HEA film far exceeds that of the pure W film, which implies that they have more excellent resistance to H+ irradiation.
Keyword :
Nuclear materials Nuclear materials Metallic composites Metallic composites Radiation damage Radiation damage
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GB/T 7714 | Qi, Chao , Ma, Yutian , Qi, Yanfei et al. Study of H-irradiation effects in low-activity W-based high-entropy alloys [J]. | MATERIALS LETTERS , 2024 , 374 . |
MLA | Qi, Chao et al. "Study of H-irradiation effects in low-activity W-based high-entropy alloys" . | MATERIALS LETTERS 374 (2024) . |
APA | Qi, Chao , Ma, Yutian , Qi, Yanfei , Zhang, Wenjie , Shen, Qi , Wang, Bo . Study of H-irradiation effects in low-activity W-based high-entropy alloys . | MATERIALS LETTERS , 2024 , 374 . |
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Abstract :
Superhydrophobic surfaces have been widely employed in both fundamental research and industrial applications because of their self-cleaning, waterproof, and low-adhesion qualities. Maintaining the stability of the superhydrophobic state and avoiding water infiltration into the microstructure are the basis for realizing these characteristics, while the size, shape, and distribution of the heterogeneous microstructures affect both the static contact angle and the wetting transition mechanism. Here, we review various classical models of wettability, as well as the advanced models for the corrected static contact angle for heterogeneous surfaces, including the general roughness description, fractal theory description, re-entrant geometry description, and contact line description. Subsequently, we emphasize various wetting transition mechanisms on heterogeneous surfaces. The advanced testing strategies to investigate the wetting transition behavior will also be analyzed. In the end, future research priorities on the wetting transition mechanisms of heterogeneous surfaces are highlighted.
Keyword :
superhydrophobic superhydrophobic contact angle contact angle microstructures microstructures wetting transition wetting transition
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GB/T 7714 | Wang, Xiao , Fu, Cheng , Zhang, Chunlai et al. A Comprehensive Review of Wetting Transition Mechanism on the Surfaces of Microstructures from Theory and Testing Methods [J]. | MATERIALS , 2022 , 15 (14) . |
MLA | Wang, Xiao et al. "A Comprehensive Review of Wetting Transition Mechanism on the Surfaces of Microstructures from Theory and Testing Methods" . | MATERIALS 15 . 14 (2022) . |
APA | Wang, Xiao , Fu, Cheng , Zhang, Chunlai , Qiu, Zhengyao , Wang, Bo . A Comprehensive Review of Wetting Transition Mechanism on the Surfaces of Microstructures from Theory and Testing Methods . | MATERIALS , 2022 , 15 (14) . |
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Abstract :
超疏水表面能够通过形成水下气液界面有效降低流体的摩擦阻力,具有良好的减阻性能,在水下航行器、微流体器件及管道运输等领域有着广阔的应用前景。本文基于超疏水表面的润湿特性,讨论介绍了其表面产生减阻现象的机理,重点总结了国内外超疏水表面减阻效率的影响因素与水下气液界面增稳、恢复问题的研究现状。最后,对超疏水表面在水下减阻应用上面临的问题和发展前景进行了探讨,为超疏水表面水下减阻技术的研发工作提供参考。
Keyword :
减阻 减阻 微结构 微结构 气液界面 气液界面 超疏水表面 超疏水表面
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GB/T 7714 | 张春来 , 王潇 , 吴银涛 et al. 超疏水表面水下减阻技术研究进展 [J]. | 功能材料与器件学报 , 2021 , 27 (05) : 445-455 . |
MLA | 张春来 et al. "超疏水表面水下减阻技术研究进展" . | 功能材料与器件学报 27 . 05 (2021) : 445-455 . |
APA | 张春来 , 王潇 , 吴银涛 , 王波 . 超疏水表面水下减阻技术研究进展 . | 功能材料与器件学报 , 2021 , 27 (05) , 445-455 . |
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Abstract :
为了制备形貌良好性能优良的硅纳米线,利用金属辅助化学刻蚀法,在AgNO3和HF的混合水溶液中沉积Ag颗粒,使之作为刻蚀反应的催化剂,并在H2 O2和HF的混合溶液中进行刻蚀反应制备硅纳米线.通过改变实验中的工艺参数,包括刻蚀反应时间、刻蚀反应温度、刻蚀液中HF浓度及反应过程中的搅拌速度,用扫描电子显微镜(scanning electron microscope,SEM)图像进行对比分析,讨论制备优良硅纳米线的最佳参数.结果表明:当刻蚀反应时间为1 h,反应温度在室温下,HF浓度为4.8 mol/L时,硅纳米线的表面形貌是最好的,但对刻蚀液的搅拌会严重破坏硅纳米线的表面形貌,不利于优良硅纳米线的制备.
Keyword :
HF浓度 HF浓度 刻蚀反应时间 刻蚀反应时间 刻蚀反应温度 刻蚀反应温度 形貌结构 形貌结构 搅拌速度 搅拌速度 硅纳米线 硅纳米线 金属辅助化学刻蚀法 金属辅助化学刻蚀法
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GB/T 7714 | 王波 , 高灿灿 , 薛睿 . 金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化 [J]. | 北京工业大学学报 , 2021 , 47 (2) : 179-185 . |
MLA | 王波 et al. "金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化" . | 北京工业大学学报 47 . 2 (2021) : 179-185 . |
APA | 王波 , 高灿灿 , 薛睿 . 金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化 . | 北京工业大学学报 , 2021 , 47 (2) , 179-185 . |
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Abstract :
金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化
Keyword :
HF浓度 HF浓度 刻蚀反应时间 刻蚀反应时间 刻蚀反应温度 刻蚀反应温度 形貌结构 形貌结构 搅拌速度 搅拌速度 硅纳米线 硅纳米线 金属辅助化学刻蚀法 金属辅助化学刻蚀法
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GB/T 7714 | 王波 , 高灿灿 , 薛睿 et al. 金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化 [J]. | 王波 , 2021 , 47 (2) : 179-185 . |
MLA | 王波 et al. "金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化" . | 王波 47 . 2 (2021) : 179-185 . |
APA | 王波 , 高灿灿 , 薛睿 , 北京工业大学学报 . 金属辅助化学刻蚀法制备硅纳米线及其工艺参数优化 . | 王波 , 2021 , 47 (2) , 179-185 . |
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Abstract :
为剖析城市轨道交通突发事件下乘客出行选择规律,提出基于Logit模型和非线性回归方法的乘客选择影响因素分析方法.首先,从乘客个体属性、出行属性和突发事件属性3个方面确定影响出行选择的主要因素,并进行敏感性分析,在此基础上提出客流浮动率与空间影响系数指标,探索乘客出行选择与时空属性的关系.结果表明:年龄、职业和收入对乘客选择有显著影响,通勤乘客倾向于城市轨道交通出行;乘客选择受事发时间影响明显,而受事发位置或出行距离单一指标影响较小,但空间影响系数对出行选择影响显著.研究可以为突发事件客流预测提供支持,并辅助制定突发客流疏散政策.
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GB/T 7714 | 李臣 , 陈艳艳 , 周雨阳 et al. 城市轨道交通突发事件下乘客出行选择影响因素研究 [J]. | 铁道运输与经济 , 2021 , 43 (7) : 105-111 . |
MLA | 李臣 et al. "城市轨道交通突发事件下乘客出行选择影响因素研究" . | 铁道运输与经济 43 . 7 (2021) : 105-111 . |
APA | 李臣 , 陈艳艳 , 周雨阳 , 黄建玲 , 汪波 . 城市轨道交通突发事件下乘客出行选择影响因素研究 . | 铁道运输与经济 , 2021 , 43 (7) , 105-111 . |
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Abstract :
The vertical van der Waals heterostructures based on 2-D materials have attracted tremendous attention in optoelectronic devices as they can offer perfect interface without dangling bonds, atomic layer thicknesses, and conveniently tunable energy band alignment. However, the carrier transport mechanism in vertically stacked van der Waals heterostructure photodetectors is usually neglected in regards of photoresponse enhancement strategy, leading to low photoresponsivity and quantum efficiency. Here, we report a vertically stacked tunneling photodetector based on WSe2/graphene/WS2 van der Waals heterostructure. By introducing graphene film into the WSe2/WS2 interface, the interface composition was ameliorated and the Fowler-Nordheim tunneling (FNT) was enhanced with the reduced tunneling barrier height and thickness, caused by the elevated energy level of electrons since strong electron-electron interaction, ultrafast thermalization (similar to 50 fs), and massless Dirac electrons of graphene. Therefore, the device exhibits a high photocurrent/dark current ratio (>10(4)), fast response time (similar to 300 mu s), high detectivity (similar to 1.58 x 10(12) Jones), and high responsivity (429 mA W-1) across a broad spectral range till 1 mu m at room temperature. The optimized detectivity and responsivity are about 150 times and 50 times higher than WSe2/WS2 device without graphene, respectively. These results contribute to offer a novel and versatile strategy for overcoming the performance limitation in van der Waals photodetector.
Keyword :
Electrodes Electrodes Performance evaluation Performance evaluation tunneling tunneling Photodetectors Photodetectors Graphene Graphene Tunneling Tunneling heterojunction heterojunction photodetector photodetector Substrates Substrates Heterojunctions Heterojunctions
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GB/T 7714 | You, Congya , Deng, Wenjie , Chen, Xiaoqing et al. Enhanced Photodetection Performance in Graphene-Assisted Tunneling Photodetector [J]. | IEEE TRANSACTIONS ON ELECTRON DEVICES , 2021 , 68 (4) : 1702-1709 . |
MLA | You, Congya et al. "Enhanced Photodetection Performance in Graphene-Assisted Tunneling Photodetector" . | IEEE TRANSACTIONS ON ELECTRON DEVICES 68 . 4 (2021) : 1702-1709 . |
APA | You, Congya , Deng, Wenjie , Chen, Xiaoqing , Zhou, Wencai , Zheng, Zilong , An, Boxing et al. Enhanced Photodetection Performance in Graphene-Assisted Tunneling Photodetector . | IEEE TRANSACTIONS ON ELECTRON DEVICES , 2021 , 68 (4) , 1702-1709 . |
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Abstract :
Simultaneous anaerobic ammonium oxidation (Anammox) and Denitrification (called SAD) holds significant promise for removing nitrogen and organic matter from wastewater. Previous studies have demonstrated the ability of SAD process and its emerging extensions, such as Simultaneous Nitritation, Anammox and Denitrification (SNAD) and simultaneous Anammox, Denitrification and Sludge Fermentation (ADSF), to integrate the nitrogen cycle with the carbon cycle. This study systematically reviews three types of SAD process, in terms of their microbial groups and their relationships. Anammox bacteria and denitrifiers commonly experience a symbiotic and/or competitive relationship when treating real wastewater. Biofilm formation and organic matter limitations are considered the most critical conditions for the co-existence of anammox and denitrification. This study also provides an overview of the research and development of the state-of-the-art processes based on SAD. We conclude that, while the optimized performance of SAD process and its extensions have been largely recognized, there is a need to better understand the mechanics, particularly with respect to a kinetic and stoichiometric analysis.
Keyword :
Biofilm Biofilm SNAD SNAD Anammox Anammox ADSF ADSF Denitrification Denitrification Organic matter Organic matter
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GB/T 7714 | Wang, Bo , Gong, Xiaofei , Peng, Yongzhen . Simultaneous anammox-denitrification process and its emerging extensions [J]. | CHEMICAL ENGINEERING JOURNAL , 2021 , 415 . |
MLA | Wang, Bo et al. "Simultaneous anammox-denitrification process and its emerging extensions" . | CHEMICAL ENGINEERING JOURNAL 415 (2021) . |
APA | Wang, Bo , Gong, Xiaofei , Peng, Yongzhen . Simultaneous anammox-denitrification process and its emerging extensions . | CHEMICAL ENGINEERING JOURNAL , 2021 , 415 . |
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Abstract :
In this study, the method of magnetic Barkhausenn noise (MBN) and tangential magnetic field (TMF) was employed for achieving simultaneous, quantitative prediction of residual stress and surface hardness in box-shape deep drawn parts of SPCC steel. Bi-directional MBN and TMF signals, profiles of surface hardness and residual stress were experimentally measured. Pearson correlation analysis results show that the averaged amplitude of MBN in one magnetization cycle and Root mean square of MBN signal demonstrates approximate linear dependency on residual stress (or surface hardness) in both the measured directions. Three-layer BP models are established after input nodes screening and optimization of neurons' number in the middle hidden layer. BP models are marked corresponding to scanning or magnetization directions. For each direction, two independent models are established and they are combined to use for realizing high accuracy and simultaneous evaluation of the residual stress and surface hardness.
Keyword :
Magnetic Barkhausen noise Magnetic Barkhausen noise Deep drawn part Deep drawn part Residual stress Residual stress Quantitative prediction Quantitative prediction Surface hardness Surface hardness
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GB/T 7714 | Dong, Haijiang , Liu, Xiucheng , Song, Yahu et al. Quantitative evaluation of residual stress and surface hardness in deep drawn parts based on magnetic Barkhausen noise technology [J]. | MEASUREMENT , 2021 , 168 . |
MLA | Dong, Haijiang et al. "Quantitative evaluation of residual stress and surface hardness in deep drawn parts based on magnetic Barkhausen noise technology" . | MEASUREMENT 168 (2021) . |
APA | Dong, Haijiang , Liu, Xiucheng , Song, Yahu , Wang, Bo , Chen, Shenglai , He, Cunfu . Quantitative evaluation of residual stress and surface hardness in deep drawn parts based on magnetic Barkhausen noise technology . | MEASUREMENT , 2021 , 168 . |
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Achieving the anammox process in suspended sludge system without supplementing carriers or inoculating anammox bacteria is a challenging topic, especially inmunicipal wastewater treatment. Long-termmaintenance of partial nitrificationwas realized in this study bymaintaining dissolved oxygen (DO) below0.5 mg/L, by using a DO meter and controlling the oxygen diffuser apparatus in anaerobic-aerobic-anoxicmode in a sequencing batch reactor, leading to successful enrichment of anammox bacteria. Under 134 maintenance days of partial nitrification with an average nitrite accumulation rate of 94.5%, anammox bacteria gradually enriched in suspended sludge with an increasing relative abundance from 0% on 18th day to 0.44% on 124th day, and the nitrogen removal efficiency improved from 30% to 85%. (NO2-)-N-15 N isotope labeling test showed that activities of anammox and denitrification were 1.48 and 1.22 mu molN/(gVSS.h), respectively. The contribution of anammox in the anoxic stage to nitrogen removal was 20%, but anammox N removal continued in the aerobic stage, as well. Long-term maintenance of partial nitrification and lowdissolved oxygen levelswere the key factors leading to enrichment of anammox bacteria. (C) 2021 Elsevier B.V. All rights reserved.
Keyword :
Municipal wastewater Municipal wastewater Nitrogen removal Nitrogen removal Anammox Anammox Natural enrichment Natural enrichment
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GB/T 7714 | Gong, Qingteng , Wang, Bo , Gong, Xiaofei et al. Anammox bacteria enrich naturally in suspended sludge system during partial nitrification of domestic sewage and contribute to nitrogen removal [J]. | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 787 . |
MLA | Gong, Qingteng et al. "Anammox bacteria enrich naturally in suspended sludge system during partial nitrification of domestic sewage and contribute to nitrogen removal" . | SCIENCE OF THE TOTAL ENVIRONMENT 787 (2021) . |
APA | Gong, Qingteng , Wang, Bo , Gong, Xiaofei , Liu, Xuefan , Peng, Yongzhen . Anammox bacteria enrich naturally in suspended sludge system during partial nitrification of domestic sewage and contribute to nitrogen removal . | SCIENCE OF THE TOTAL ENVIRONMENT , 2021 , 787 . |
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