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Geologic-seismic models,prediction of shallow-water lacustrine delta sandbody and hydrocarbon potential in the Late Miocene,Huanghekou Sag,Bohai Bay Basin,northern China

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Journal of Palaeogeography 2018年第1期7卷 66-87页

作者： Hao Liu Qing-long xia Xin-Huai Zhou School of Ocean Sciences China University of Geosciences Exploration & Exploitation Research Institute Tianjin Branch of China National Offshore Oil Corporation Exploration & Exploitation Research Institute Shanghai Branch of China National Offshore Oil Corporation

The Huanghekou Sag is located at the southeast part of the Bohai Bay Basin, northern China. Large-scale shallow lake delta developed in the Neogene provided suitable geological conditions for the formation of a subtle oil-gas reservoir in this area. The key for analyzing sandstone reservoir and sedimentary facies is by using seismic attributes(amplitude) to establish the relationship between lithology combination and seismic attributes. The lower unit of Late Miocene Minghuazhen Formation at the BZ34 block in the Huanghekou Sag was subdivided into 10 parasequence sets(PSS). Thicker sandstones mainly occurred in PSS1 and PSS10, whereas thin sandstones are mostly observed within other parasequence sets. This study presents statistics and analyses of lithology, i.e., statistics of root-meansquare(RMS) amplitude and lithology of well locations in different parasequence sets of the study area,as well as 1-D forward seismic models of 7 types of lithology combinations, the establishment of a spatial distribution of 2-D sandbody, forward seismic models etc. Our study indicates that high amplitude peaks correspond to thicker sandbodies, while low amplitude indicates non-development of sandbodies(generally less than 2 m), and medium amplitude agrees well with large sets of mudstones interbedded with medium and thinner sandstones. Different sand-mudstone combinations genetically reflect a combination of multiple micro-facies, therefore, amplitude features can predict sandbodies as well as facies characteristics.

关键词： Shallow-water lacustrine delta High-frequency sequence Root-mean-square(RMS)amplitude Geological-geophysical model Sandstone depiction Huanghekou Sag Late Miocene

Joints of continuous carbon fiber reinforced lithium aluminosilicate glass ceramics matrix composites to Ti60 alloy brazed using Ti-Zr-Ni-Cu active alloy

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Chinese Journal of Aeronautics 2019年第3期32卷 715-722页

作者： Shengpeng HU Dongdong FENG long xia Ke WANG Renwei LIU Zhentao xia Hongwei NIU xiaoguo SONG School of Materials Science and Engineering Harbin Institute of Technology Shanghai Institute of Spacecraft Equipment

Continuous carbon fiber reinforced lithium aluminosilicate glass ceramics matrix composites(C_f/LAS composites) are joined to Ti60 alloy vacuum brazed using Ti-Zr-Ni-Cu brazing alloy. The effects of the brazing temperature on the interfacial microstructure and mechanical properties of brazed joints are investigated in details. The interfacial microstructure varies apparently with an increase of the brazing temperature. The thicknesses of the banded Ti solid solution(Ti(s, s)) and the reactive layer between Cf/LAS composites and the interlayer grow gradually. The mechanical properties of brazed joints increase firstly and then decrease with an increasing temperature. In addition, a joint that is brazed at 980 °C for 10 min shows the highest shear strength of$38.13 MPa. At the same time, the fracture paths of brazed joints also change as the temperature increases. When the brazing temperature is 950 °C, the fracture position is in the TiC + ZrC +Ti_2O + ZrSi_2+ Ti_5Si_3 layer on the composite side. When the brazing temperature is 980 °C, the fracture position is on the side of the braze seam(Ti, Zr)2(Ni, Cu), Ti_2O + ZrSi_2+ Ti_5Si_3 layer,and carbon fiber in the composite material. When the brazing temperature is 990 °C, the fracture position is in the Ti_2O + ZrSi_2+ Ti_5Si_3 layer on the composite side and the carbon fiber in the composite material.

关键词： Brazing Composites Mechanical properties Microstructure Titanium alloys

Synthesis and photocatalytic properties of core–shell TiO^2@ZnIn_2S_4 photocatalyst

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Chinese Chemical Letters 2013年第11期24卷 984-986页

作者： Wen-Hui Yuan Zi-long xia Li Li School of Chemistry and Chemical Engineering South China University of Technology School of Environmental Science and Engineering South China University of Technology

A novel core–shell TiO2@ZnIn2S4composite has been synthesized successfully by a simple and flexible hydrothermal route using TiO2as *** as-synthesized samples were characterized by X-ray diffraction,UV–vis diffuse reflectance spectra and transmission electron *** photocatalytic properties of samples were tested by degradation of aqueous methylene blue（MB）under visible light *** was found that the as-synthesized TiO2@ZnIn2S4photocatalyst was more effcient than TiO2and ZnIn2S4in the photocatalytic degradation of ***,TEM images confrmed the TiO2@ZnIn2S4nanoparticles possessed a well-proportioned core–shell morphology.

关键词： Core–shell TiO_2 ZnIn_2S_4 Photocatalytic

Localization effect in single crystal of RuAs2

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Chinese Physics B 2024年第4期33卷 620-625页

作者：易哲铠刘琪光双魁徐升岳小宇梁慧李娜周颖吴丹丹孙燕李秋菊程鹏夏天龙孙学峰王义炎 Anhui Key Laboratory of Magnetic Functional Materials and Devices Institute of Physical Science and Information TechnologyAnhui University Department of Physics and Key Laboratory of Strongly-Coupled Quantum Matter Physics (CAS) University of Science and Technology of China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices Renmin University of China School of Optical and Electronic Information Suzhou City University School of Physics and Optoelectronic Engineering Anhui University Collaborative Innovation Center of Advanced Microstructures Nanjing University

We report the magnetotransport and thermal properties of RuAs2single crystal. RuAs2exhibits semiconductor behavior and localization effect. The crossover from normal state to diffusive transport in the weak localization（WL） state and then to variable range hopping（VRH） transport in the strong localization state has been observed. The transitions can be reflected in the measurement of resistivity and Seebeck coefficient. Negative magnetoresistance（NMR） emerges with the appearance of localization effect and is gradually suppressed in high magnetic field. The temperature dependent phase coherence length extracted from the fittings of NMR also indicates the transition from WL to VRH. The measurement of Hall effect reveals an anomaly of temperature dependent carrier concentration caused by localization effect. Our findings show that RuAs2is a suitable platform to study the localized state.

关键词： weak localization variable range hopping RuAs_2 single crystal

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节能型水泥生料助剂的研究与应用

广州化工 2024年第17期52卷 147-150页

作者：王恒龙彩霞廖文杰桂林华越环保科技有限公司广西桂林541000

生料粉磨在水泥生产环节中举足轻重,为提高生料粉磨效率,响应国家双碳政策,进行节能降耗,文章提出一种节能型水泥生料助剂。通过工厂生产实验,并对生料助剂节煤作用进行机理探讨,经济效益分析。结果表明此种生料助磨剂能够在生料煅烧中... 详细信息

生料粉磨在水泥生产环节中举足轻重,为提高生料粉磨效率,响应国家双碳政策,进行节能降耗,文章提出一种节能型水泥生料助剂。通过工厂生产实验,并对生料助剂节煤作用进行机理探讨,经济效益分析。结果表明此种生料助磨剂能够在生料煅烧中降低分解炉出口温度和二次风湿温,提高了熟料的质量,具有良好的生料粉磨提产效果和节煤效果。

关键词：生料助磨剂水泥提产节煤

Power Optimization Strategy Considering Electric Vehicle in Home Energy Management System

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Journal of Electronic Science and Technology 2016年第3期14卷 234-241页

作者： Yu-xiao Huang Feng Yang Yang Luo Cheng-long xia the School of Energy Science and Engineering University of Electronic Science and TechnologyChengdu 611731China the School of Automation Engineering University of Electronic Science and TechnologyChengdu 611731China

With the development of smart grid, residents have the opportunity to schedule their household appliances （HA） for the purpose of reducing electricity expenses and alleviating the pressure of the smart grid. In this paper, we introduce the structure of home energy management system （EMS） and then propose a power optimization strategy based on household load model and electric vehicle （EV） model for home power usage. In this strategy, the electric vehicles are charged when the price is low, and otherwise, are discharged. By adopting this combined system model under the time-of-use electricity price （TOUP）, the proposed scheduling strategy would effectively minimize the electricity cost and reduce the pressure of the smart grid at the same time. Finally, simulation experiments are carried out to show the feasibility of the proposed strategy. The results show that crossover genetic particle swarm optimization algorithm has better convergence properties than traditional particle swarm algorithm and better adaptability than genetic algorithm.

关键词： EMS smart grid scheduling space state of charge time-of-use electricity price vehicle-to-grid technology (V2G) technology.

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井中等值反磁通瞬变电磁法原理及应用

地球物理学进展 2024年第4期39卷 1512-1519页

作者：李祖强席振铢芦磊胡明杰周赢侯海涛龙霞湖南五维地质科技有限公司长沙410083 中南大学地球科学与信息物理学院长沙410083 云南锡业股份有限公司个旧661000 云锡红河资源有限责任公司个旧661000

随着矿山近地表资源开采殆尽,地下深部空间成为探矿工作的重点区域.目前,常规地表物探方法无法同时满足矿山深部找矿探测深度与精度的要求.因此,将精度高的物探方法移至井中进行井中物探是解决该问题的重要手段.本文通过理论与物理实验... 详细信息

随着矿山近地表资源开采殆尽,地下深部空间成为探矿工作的重点区域.目前,常规地表物探方法无法同时满足矿山深部找矿探测深度与精度的要求.因此,将精度高的物探方法移至井中进行井中物探是解决该问题的重要手段.本文通过理论与物理实验论述了在井中实施等值反磁通瞬变电磁法的可行性.首先,介绍了等值反磁通瞬变电磁法在井中的测量方式,分析了该方法测量的物理原理,推导了该方法在全空间环境下的理论计算公式,并对该方法测量过程中的响应信号进行了分析.然后,通过物理实验进一步验证该方法在井中全空间环境测量的可行性,并对响应信号进行了分析.最后,以云南省个旧市某矿区井中勘探工作案例来分析该方法的有效性.通过将物探成果与已知地质资料的对比,表明该方法在井中应用时能有效的探明矿体、构造等地质异常的位置及空间分布情况.

关键词：等值反磁通瞬变电磁法井中物探金属矿地质构造

Fabrication of Iron-base Alloy by Spark Plasma Sintering

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Journal of Materials Science & Technology 2006年第2期22卷 257-260页

作者： Yuanyuan LI xiaoqiang LI Yah long Wei xia Min ZHU Weiping CHEN College of Mechanical Engineering South China University of Technology Guazngzhou 510640 China

Fe-2Cu-2Ni-1Mo-0.8C （wt pct） elemental mixed powders were rapidly sintered within 6 min by spark plasma sintering, and the effects of sintering parameters on the densification degree and performance of the assintered materials were investigated. Results showed that when a proper combination of pulse electric current and constant electric current was employed for sintering, the density and bend strength of the as-sintered material reached the maxima, being 7.61×10^3 kg/m^3 and 1540 MPa, respectively. Its corresponding fracture morphology was characterized as the mix of ductile, intergranular and cleavage fractures.

关键词： Spark plasma sintering Iron-base alloy Density Microstructure and performance

Carbonized wood with ordered channels decorated by NiCo_(2)O_(4) for lightweight and high-performance microwave absorber

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Journal of Advanced Ceramics 2022年第1期11卷 105-119页

作者： Guangyu QIN xiaoxiao HUANG Xu YAN Yunfei HE Yuhao LIU long xia Bo ZHONG School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Radio Measurement Beijing 100854China School of Materials Science and Engineering Harbin Institute of Technology at WeihaiWeihai 264009China

Wood-derived carbon has a 3D porous framework composed of through channels along the growth direction,which is a suitable matrix for preparing electromagnetic wave(EMW)absorbing materials with low cost,light weight,and environmental ***,the carbonized wood decorated by short cone-like NiCo_(2)O_(4)(NiCo_(2)O_(4)@CW)with highly ordered straight-channel architecture was successfully manufactured through a facile calcination *** horizontal arrangement of the through channels of NiCo_(2)O_(4)@CW(H-NiCo_(2)O_(4)@CW)exhibits a strong reflection loss value of-64.0 dB at 10.72 GHz with a thickness of 3.62 mm and a low filling ratio of 26 wt%(with the density of 0.98 g-cnf3),and the effective absorption bandwidth(EAB)is 8.08 GHz(9.92-18.0 GHz)at the thickness of 3.2 *** excellent microwave absorption(MA)property was ascribed to the ordered-channel structure with abundant interfaces and defects from NiCo_(2)O_(4)@CW,which could promote the interfacial polarization and dipole *** is more,this advantageous structure increased the multiple reflections and *** element analysis(FEA)simulation is carried out to detect the interaction between the prepared material and EMW when the ordered channels are arranged in different *** research provides a low-cost,sustainable,and environmentally friendly strategy for using carbonized wood to fabricate microwave absorbers with strong attenuation capabilities and light weight.

关键词： microwave absorption(MA) wood-derived carbon ordered-channel architecture light weight finite element analysis(FEA)