- 作 者: ( "xingwu guo" OR "xing-wu guo" )
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Casing Deformation Response and Controlling Technology Based on Diagnostics of Shale Gas Fracturing CurveFrontiers in Energy Research (IF 3.858) Pub Date : 2022-07-14 ,DOI:10.3389/fenrg.2022.958040Cheng Shen, Bo Zeng, Jianfa Wu, Yi Song, Xingwu Guo, Xiaojin Zhou, Junfeng Li
Casing deformation (CD) will seriously affect the fracturing progress and stimulation effect of shale gas. Taking 105 gas wells in the Luzhou shale gas area in southern Sichuan as an example, the CD prediction model was established by introducing the fracture operation curve diagnosis method to analyze the changes in net pressure and propagation mode during fracturing. The fracturing stage induced
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Structure Design and Performance Research of WO3 Hydrogen Gasochromic Film Prepared by Solvothermal Synthesis Assisted with Electrodeposition of Seed LayerAdvanced Materials Interfaces (IF 6.389) Pub Date : 2022-02-05 ,DOI:10.1002/admi.202101355Chenjing Gao, Xingwu Guo, Lewen Nie, Xuan Wu, Liming Peng, Juan Chen, Wenjiang DingThe time-consuming and laborious heat treatment is indispensable for preparing seed layer in solvothermal synthesis of WO3 film. Herein, WO3 film is prepared composed of single crystal WO3 nanowires on indium tin oxide (ITO) glass assisted with simple and energy-saving electrodeposited seed layer for the first time. The catalyst Pt is sputtered on it for 30 s after WO3 film is synthesized to form the ...
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Fabrication and optical hydrogen gas sensing property of hierarchical WO3 Porous/Nanowires filmMaterials Letters (IF 3.574) Pub Date : 2022-02-02 ,DOI:10.1016/j.matlet.2022.131805Lewen Nie, Xingwu Guo, Chenjing Gao, Xuan Wu, Juan Chen, Liming PengThe porous WO3 films and hierarchical WO3 porous/nanowires films were fabricated by the colloidal template method and solvothermal method, and Pt catalyst was loaded on films by sputtering. The porous WO3 films exhibited uniform and ordered porous structure with pore diameter of ∼1020, ∼810 and ∼360 nm. Morphology of hierarchical WO3 films showed that many nanowires with diameter of 20 ∼ 30 nm grew ...
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Observation of the fine structure of antennal sensilla of the stink bug, Eocanthecona furcellata (Hemiptera: Pentatomidae)Micron (IF 2.381) Pub Date : 2021-08-28 ,DOI:10.1016/j.micron.2021.103143Hang Zhao, Chen Liang, Ping Gao, Yong-hui Xie, Zhi-jiang Wang, Guo-xing Wu, Guo-wen Tang, Bin Cheng, Xi GaoIn order to explore the mechanism underlying chemosensation in Eocanthecona furcellata, the external morphology of its antennae and the type, quantity, distribution and ultrastructure of the sensilla were observed on both sexes of adults and 5th-instar nymphs using scanning electron microscopy. The results showed that the antennae of E. furcellata consisted of three parts: scape, pedicel and flagellum ...
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Research on Value Perception Models and Strategies of Electric Power UsersIOP Conference Series: Earth and Environmental Science Pub Date : 2021-02-10 ,DOI:10.1088/1755-1315/651/2/022003Pingwen Li, Shuo Yin, Meng Yang, Xingwu Guo, Man Jin, Jing Yan, Na Zhang
Energy management business is to provide a “management nature” business for the user’s energy use process, focusing on the management of the user’s energy system, improving the efficiency of energy use, and reducing the user’s energy cost. The key factor that affects the transformation of consumer psychology into consumer behaviour is the value of electricity value-added services. This article constructs
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Exploration of the construction path of an energy ecosystem adapted to the power Internet of thingsIOP Conference Series: Earth and Environmental Science Pub Date : 2021-01-07 ,DOI:10.1088/1755-1315/631/1/012124Shuo Yin, Shiqian Wang, Meng Yang, Xingwu Guo, Na Zhang
Building an energy Internet ecosystem is an effective mode to expand new energy businesses, give digital energy to traditional energy enterprises and promote energy transformation and development. In this paper, by analyzing and expounding the concept, development situation, construction theory, practice summary, exploration path and other dimensions of the energy Internet ecosystem, putting forward
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Effective strategy for improving infrared emissivity of Zn-Ni porous coatingApplied Surface Science (IF 7.392) Pub Date : 2019-08-01 ,DOI:10.1016/j.apsusc.2019.04.191Jiacheng Guo, Xingwu Guo, Jiyong Zeng, Lewen Nie, Jie Dong, Liming Peng, Wenjiang DingAbstract The purpose of this study is to prepare porous Zn-Ni coating with high infrared emissivity at a lower current density (1 A/cm2) by using dynamic hydrogen bubble template (DHBT) method. Three types of ceramic micro-particles (Al2O3, SiO2 and TiO2) are introduced into the electrolyte to investigate their effects on the surface morphology and infrared emissivity of Zn-Ni coating. The results ...
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Bulkyl diphenylamine functionalized spiro[fluorene-9,9′- xanthene] based solution-processible small molecule host in red PhOLEDs for investigating structure-property relationshipDyes and Pigments (IF 5.122) Pub Date : 2019-04-25 ,DOI:10.1016/j.dyepig.2019.04.047Xiang-Hua Zhao,Ya-Nan Xu,Jia-Xing Wu,Guo-Dong Zou,Xin-Wen Zhang,Ling-Hai Xie,Jian-Feng Zhao,Chun-Miao Han,null Hui-Xu,Jia-Jia ZhangA novel diphenylamine/spiro[fluorene-9,9′-xanthene] (SFX) hybrid (SFX27DPA) was constructed successfully by incorporating diphenylamine into SFX via Pd-catalyzed CN cross-coupling to ingeniously develop state-of-the-art models of solution-processible small molecule host for uncovering the structure-property relationship of molecular structure change in the application of PhOLEDs, which is vital to ...
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Influence of sodium dodecyl sulphate on the surface morphology and infrared emissivity of porous Ni filmInfrared Physics & Technology (IF 2.997) Pub Date : 2018-09-01 ,DOI:10.1016/j.infrared.2018.07.029Jiacheng Guo, Xingwu Guo, Jiyong Zeng, Lewen Nie, Jie Dong, Liming Peng, Wenjiang DingAbstract The purpose of this study is to investigate the effect of sodium dodecyl sulphate (SDS) concentration on the surface morphology as well as infrared emissivity of porous Ni film prepared through the method of dynamic hydrogen bubble template (DHBT). The results indicate that the addition of SDS can enhance the hydrogen evolution reaction and increase the volume of evolving hydrogen bubbles ...
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[Flux footprint of winter wheat farmland ecosystem in the North China Plain].Ying yong sheng tai xue bao = The journal of applied ecology Pub Date : 2018-04-25 ,DOI:10.13287/j.1001-9332.201711.029Dong Xing Wu,Guo Dong Li,Xi ZhangThe flux data of winter wheat farmland ecosystem observed by eddy covariance system in the North China Plain from 2013 to 2014 were used to combine with the footprint model FSAM. The temporal and spatial distributions of footprint of winter wheat farmland ecosystem in the North China Plain were analyzed. The differences of footprint distribution in different atmospheric stratification and growing seasons ...
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Fabrication and thermal conductivity of copper coated graphite film/aluminum composites for effective thermal managementJournal of Alloys and Compounds (IF 6.371) Pub Date : 2017-07-01 ,DOI:10.1016/j.jallcom.2017.03.233Yu Huang, Yishi Su, Xingwu Guo, Qiang Guo, Qiubao Ouyang, Guoding Zhang, Di ZhangAbstract Graphite/Al composites are promising thermal management materials due to their excellent thermal properties. However, the poor wettability between graphite and Al leads to easy formation of interfacial defects and pores, which impede the improvement of thermal properties. Cu coating was uniformly coated on the graphite films by a physical vapor deposition process to promote interfacial wetting ...
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A Zn-Ni coating with both high electrical conductivity and infrared emissivity prepared by hydrogen evolution methodApplied Surface Science (IF 7.392) Pub Date : 2017-04-01 ,DOI:10.1016/j.apsusc.2017.01.053Jiacheng Guo, Xingwu Guo, Wenbin Xu, Zhicheng Zhang, Jie Dong, Liming Peng, Wenjiang DingAbstract A Zn-Ni coating with both high electrical conductivity and infrared emissivity was prepared by hydrogen evolution method in order to satisfy the demand of thermal control in space. The maximum infrared emissivity of 0.91 was obtained, meanwhile the electrical resistivity is lower than 0.01 mΩ/cm. The infrared emissivity of the coating obtained from the experimental result is proportional to ...
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Investigation of multi-coating process treated magnesium alloy as bipolar plate in polymer electrolyte membrane fuel cellInternational Journal of Hydrogen Energy (IF 7.139) Pub Date : 2016-04-07 ,DOI:10.1016/j.ijhydene.2016.02.147Kai Feng, Xingwu Guo, Zhuguo Li, Chengwu Yao, Yixiong WuMagnesium alloy bipolar plates offer great advantage in weight reduction of polymer electrolyte membrane fuel cell. An attempt to improve the corrosion resistance and surface conductivity of magnesium alloy has been made by a medium electroless plating Ni coating prior to PVD deposition of carbon film, envisaging the application of these coating/substrate systems as bipolar plate in PEMFC. The results ...
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Effects of glycine and current density on the mechanism of electrodeposition, composition and properties of Ni–Mn films prepared in ionic liquidApplied Surface Science (IF 7.392) Pub Date : 2016-03-01 ,DOI:10.1016/j.apsusc.2015.12.248Jiacheng Guo, Xingwu Guo, Shaohua Wang, Zhicheng Zhang, Jie Dong, Liming Peng, Wenjiang DingAbstract The effects of glycine on the mechanism of electrodeposition of Ni–Mn alloy film prepared in ChCl–urea ionic liquid were studied in order to control the composition, microstructure and properties of the film. The cyclic voltammograms revealed that the presence of glycine in the ionic liquid can inhibit the reduction of Ni 2+ ions but promote the reduction of Mn 2+ ions in the cathodic scan ...
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Evaluation of the critical stress of anodized coating-AZ91D substrate using SEM in-situ technologyJournal of Zhejiang University-SCIENCE A (IF 1.49) Pub Date : 2016-01-09 ,DOI:10.1631/jzus.A1500178Xi-shu Wang,Xing-wu Guo,Yuzo Nakamura,Hui-hui Yang,Pan Pan
Experimental investigations of the micro cracking behavior of a coating-substrate structure were carried out in-situ with a scanning electron microscope (SEM). An anodized coating layer was deposited on an AZ91D substrate by the galvanize pulse method. Results indicated that the failure mechanism of the coating-substrate structure was due to a mismatch of micro deformation between the coating and substrate
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Peritumoral edema on magnetic resonance imaging predicts a poor clinical outcome in malignant glioma.Oncology Letters (IF 3.111) Pub Date : 2016-01-02 ,DOI:10.3892/ol.2015.3639Chen-Xing Wu,Guo-Shi Lin,Zhi-Xiong Lin,Jian-Dong Zhang,Long Chen,Shui-Yuan Liu,Wen-Long Tang,Xian-Xin Qiu,Chang-Fu Zhou
Peritumoral edema (PTE), one of the main characteristics of malignant glioma, is a significant contributor to the morbidity and mortality from glioma, however, a recent systematic review suggested that controversy remains with regard to its prognostic value. To further determine whether PTE was a potential prognostic factor on routine pre-operative magnetic resonance imaging (MRI) for malignant glioma
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Graphite film/aluminum laminate composites with ultrahigh thermal conductivity for thermal management applicationsMaterials & Design (IF 9.417) Pub Date : 2016-01-01 ,DOI:10.1016/j.matdes.2015.10.146Yu Huang, Qiubao Ouyang, Qiang Guo, Xingwu Guo, Guoding Zhang, Di ZhangAbstract In order to meet the requirements in thermal management, a novel kind of carbon/metal composites, namely graphite film/aluminum laminate composites with excellent thermal properties, was developed. The effects of oxide films on interfacial structure and properties of the composites were identified, and the microstructures and properties of the composites were studied as a function of the volume ...
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Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayerJournal of Materials Processing Technology (IF 6.162) Pub Date : 2015-05-01 ,DOI:10.1016/j.jmatprotec.2014.12.003Yan Mao, Zhuguo Li, Kai Feng, Xingwu Guo, Zhifeng Zhou, Yixiong WuAbstract The carbon film with electroless nickel interlayer (Ni + C) was fabricated to improve the corrosion resistance of the magnesium alloy GW83. Compared to other coatings used in this study, the dense Ni + C coating improved adhesion with the substrate. The corrosion potential ( E corr ) of the Ni + C coated magnesium alloy was about −1.37 V vs saturated calomel electrode (SCE) in contrast to ...
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Peritumoral edema shown by MRI predicts poor clinical outcome in glioblastoma.World Journal of Surgical Oncology (IF 3.253) Pub Date : 2015-04-18 ,DOI:10.1186/s12957-015-0496-7Chen-Xing Wu,Guo-Shi Lin,Zhi-Xiong Lin,Jian-Dong Zhang,Shui-Yuan Liu,Chang-Fu Zhou
BACKGROUND Magnetic resonance imaging (MRI) plays an irreplaceable role in the preoperative diagnosis of glioma, and its imaging features are the base of making treatment decisions in patients with glioma, but it is still controversial whether peritumoral edema shown by MRI from preoperative routine scans are associated with patient survival. The aim of this study was to assess the prognostic value
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Preparation, characterization and wear behavior of carbon coated magnesium alloy with electroless plating nickel interlayerApplied Surface Science (IF 7.392) Pub Date : 2015-02-01 ,DOI:10.1016/j.apsusc.2014.11.151Yan Mao, Zhuguo Li, Kai Feng, Xingwu Guo, Zhifeng Zhou, Jie Dong, Yixiong WuAbstract Poor wear resistance of rare earth magnesium alloys has prevented them from wider application. In this study, composite coating (PVD carbon coating deposited on electroless plating nickel interlayer) is prepared to protect GW83 magnesium alloys against wear. The Ni + C composite coating has a dense microstructure, improved adhesion strength and hardness due to the effective support of Ni interlayer ...
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Homogenization pretreatment and electroless Ni–P plating on AZ91D magnesium alloyTransactions of Nonferrous Metals Society of China Pub Date : 2014-12-01 ,DOI:10.1016/s1003-6326(14)63539-1Can SUN, Xing-wu GUO, Shao-hua WANG, Jia-cheng GUO, Wen-jiang DINGAbstract Electroless nickel plating on AZ91D substrate with a new and eco-friendly pretreatment process based on tuning an electrochemical homogeneous surface was investigated. The morphology, deposition process, chemical composition and microstructure of Ni–P coating were studied. It is indicated that β phases are selectively removed, producing a microstructural homogeneous surface and the subsequent ...
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Electrodeposition of Cu coating with high corrosion resistance on Mg–3.0Nd–0.2Zn–0.4Zr magnesium alloyTransactions of Nonferrous Metals Society of China Pub Date : 2014-12-01 ,DOI:10.1016/s1003-6326(14)63537-8Shao-hua WANG, Xing-wu GUO, Can SUN, Jia GONG, Li-ming PENG, Wen-jiang DINGAbstract To improve the corrosion resistance, electrodeposition of Cu coating on Mg–3.0Nd–0.2Zn–0.4Zr (mass fraction, % NZ30K) magnesium alloy via an appropriate pretreatment was investigated. The surface morphologies, compositions and microstructures of the pretreated films and Cu coating were characterized in detail. The results show that the activation film consists of fluoride and phosphates and ...
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Characterization of highly corrosion-resistant nanocrystalline Ni coating electrodeposited on Mg–Nd–Zn–Zr alloy from a eutectic-based ionic liquidApplied Surface Science (IF 7.392) Pub Date : 2014-09-01 ,DOI:10.1016/j.apsusc.2014.06.060Xingwu Guo, Shaohua Wang, Jia Gong, Jiacheng Guo, Liming Peng, Wenjiang DingAbstract A dense nanocrystalline Ni coating was successfully electrodeposited on Mg–3.0Nd–0.2Zn–0.4Zr (wt.%, NZ30K) alloy from a choline chloride–urea (1:2 molar ratio) eutectic-based ionic liquid (1:2 ChCl–urea IL) on the basis of an appropriate pretreatment. A Cu underlayer was pre-plated from a pyrophosphate based solution to avoid the severe corrosion and replacement reaction of NZ30K alloy in ...
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Improvement on the Fatigue Performance of 2024-T4 Alloy by Synergistic Coating Technology.Materials Pub Date : 2014-05-06 ,DOI:10.3390/ma7053533Xi-Shu Wang,Xing-Wu Guo,Xu-Dong Li,Dong-Yun Ge
In this paper, rotating bending fatigue tests of 2024-T4 Al alloy with different oxide coatings were carried out. Compared to the uncoated and previously reported oxide coatings of aluminum alloys, the fatigue strength is able to be enhanced by using a novel oxide coating with sealing pore technology. These results indicate that the better the coating surface quality is, the more excellent the fatigue
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Improvement on the Fatigue Performance of 2024-T4 Alloy by Synergistic Coating TechnologyMaterials (IF 3.057) Pub Date : 2014-05-06 ,DOI:10.3390/ma7053533Xi-Shu Wang, Xing-Wu Guo, Xu-Dong Li, Dong-Yun Ge
In this paper, rotating bending fatigue tests of 2024-T4 Al alloy with different oxide coatings were carried out. Compared to the uncoated and previously reported oxide coatings of aluminum alloys, the fatigue strength is able to be enhanced by using a novel oxide coating with sealing pore technology. These results indicate that the better the coating surface quality is, the more excellent the fatigue
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A homogenisation pre-treatment for adherent and corrosion-resistant Ni electroplated coatings on Mg-alloy AZ91DCorrosion Science (IF 7.72) Pub Date : 2014-02-01 ,DOI:10.1016/j.corsci.2013.10.024Haiyan Yang, Xingwu Guo, Xiaobo Chen, Nick BirbilisAbstract Multi-step Ni electroplatings were applied to AZ91D following the development of a homogenisation pre-treatment. The Ni coating was well adhered, as verified by thermal shock testing, and provided corrosion protection in 3.5 wt.% NaCl for 74 h at a coating thickness of ∼15 μm. Being a cathodic coating, further protection in the presence of defects was not demonstrated herein, however realisation ...
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Electrodeposition mechanism and characterization of Ni–Cu alloy coatings from a eutectic-based ionic liquidApplied Surface Science (IF 7.392) Pub Date : 2014-01-01 ,DOI:10.1016/j.apsusc.2013.10.065Shaohua Wang, Xingwu Guo, Haiyan Yang, JiChun Dai, Rongyu Zhu, Jia Gong, Liming Peng, Wenjiang DingAbstract The electrodeposition mechanism, microstructures and corrosion resistances of Ni–Cu alloy coatings on Cu substrate were investigated in a choline chloride–urea (1:2 molar ratio) eutectic-based ionic liquid (1:2 ChCl–urea IL) containing nickel and copper chlorides. Cyclic voltammetry showed that the onset reduction potentials for Cu (∼−0.32 V) and for Ni (∼−0.47 V) were close to each other ...
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Preparation of superhydrophobic silica film on Mg–Nd–Zn–Zr magnesium alloy with enhanced corrosion resistance by combining micro-arc oxidation and sol–gel methodSurface and Coatings Technology Pub Date : 2012-12-01 ,DOI:10.1016/j.surfcoat.2012.10.046Shaohua Wang, Xingwu Guo, Yijun Xie, Lihua Liu, Haiyan Yang, Rongyu Zhu, Jia Gong, Liming Peng, Wenjiang DingAbstract To improve the corrosion resistance, a superhydrophobic silica film on Mg–3.0Nd–0.2Zn–0.4Zr (wt.%, NZ30K) magnesium alloy was successfully prepared by the combination of micro-arc oxidation (MAO) and sol–gel method using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as precursors. The MAO layer with highly porous surface was formed as an intermediate layer to ensure the excellent ...
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Preparation of superhydrophobic silica film on Mg–Nd–Zn–Zr magnesium alloy with enhanced corrosion resistance by combining micro-arc oxidation and sol–gel methodSurface & Coatings Technology (IF 4.865) Pub Date : 2012-10-26 ,DOI:10.1016/j.surfcoat.2012.10.046Shaohua Wang, Xingwu Guo, Yijun Xie, Lihua Liu, Haiyan Yang, Rongyu Zhu, Jia Gong, Liming Peng, Wenjiang DingTo improve the corrosion resistance, a superhydrophobic silica film on Mg–3.0Nd–0.2Zn–0.4Zr (wt.%, NZ30K) magnesium alloy was successfully prepared by the combination of micro-arc oxidation (MAO) and sol–gel method using tetraethoxysilane (TEOS) and methyltriethoxysilane (MTES) as precursors. The MAO layer with highly porous surface was formed as an intermediate layer to ensure the excellent adhesion ...
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Tailoring nickel coatings via electrodeposition from a eutectic-based ionic liquid doped with nicotinic acidApplied Surface Science (IF 7.392) Pub Date : 2011-08-01 ,DOI:10.1016/j.apsusc.2011.05.106Haiyan Yang, Xingwu Guo, Nick Birbilis, Guohua Wu, Wenjiang DingAbstract Pure nickel (Ni) was electrodeposited onto a copper (Cu) substrate from choline chloride–urea (1:2 molar ratio) eutectic-based ionic liquid (1:2 ChCl–urea IL) with 0–1200 mg/L additions of nicotinic acid (NA). The effect of NA on the voltammetric behavior of Ni (II) was investigated by cyclic voltammetry, whilst the nucleation/growth of Ni deposits was studied by chronoamperometry. The resultant ...
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