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Selective photo-reduction of nitrate to nitrogen with a two-step process by a KBH_(4)/Cu(II)modified CuFe_(2)O_(4)photocatalyst

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Nano Research 2023年第7期16卷 10462-10475页

作者： Li Cai jinrui guo Ting Liu Jing Tian Zhaoli Wang Yong Liu Mohamed SHamdy Xuping Sun College of Chemistry and Materials Science Sichuan Normal UniversityChengdu 610066China Chengdu Academy of Environmental Sciences Chengdu 610072China Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System Chengdu 610066China Catalysis Research Group(CRG) Department of ChemistryCollege of ScienceKing Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China

Nitrate(NO_(3)^(-))removal by photochemical-reduction has received extensive ***,the low selectivity of NO_(3)^(-)reduction to N_(2)hinders the application of this *** this study,a novel Cu@Fe-Cu-CuFe_(2)O_(4)-x photocatalyst was prepared by modifying CuFe_(2)O_(4)with KBH4 and Cu(II),and used to selectively reduce NO_(3)^(-)to N_(2)with a two-step reduction *** step(1),with Cu@Fe-Cu-CuFe_(2)O_(4)-x/ultraviolet(UV)system,91.0%NO_(3)^(-)was reduced to 52.3%NO_(2)-and 39.4%N_(2)within 60 *** rapid removal of NO_(3)^(-)was due to the synergistic effect of oxygen vacancies,Fe-Cu corrosion cell,and CuFe_(2)O_(4)*** step(2),H_(2)C_(2)O_(4)and H_(2)O_(2)were introduced into the effluent of step(1)to promote CO_(2)·-formation via Fe(II)and Fe(III)catalysis and UV radiation,which boosted the selective reduction of NO_(2)-to N_(2).When H_(2)C_(2)O_(4)and H_(2)O_(2)dosages were both 4.0 mmol·L^(-1)and the reaction time was 30 min,the removal efficiency of NO_(2)-achieved 100%and the selectivity of N_(2)was 83.0%.Overall,the two-step reduction process achieved 95.0%NO_(3)^(-)removal efficiency and 90.1%N_(2)selectivity with initial NO_(3)^(-)concentration of 30 mg·N·L^(-1).In addition,the denitrification mechanism of the two-step reduction process was tentatively proposed.

关键词： nitrate nitrite photochemical-reduction denitrification photocatalysis

Hydrocarbon migration in fracture-cave systems of carbonate reservoirs under tectonic stresses:A modeling study

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Petroleum Research 2019年第4期4卷 354-364页

作者： Chenjun Huang Geyun Liu Yongsheng Ma Xingui Zhou Linyan Zhang Jinyin Yin jinrui guo Petroleum Exploration and Production Research Institute SINOPECBeijing100083China Center of Journals&Annals Hebei GEO UniversityShijiazhuang050031China China Petroleum&Chemical Corporation Beijing100728China Oil&Gas Survey China Geological SurveyBeijing100083China Institute of Geomechanics Chinese Academy of Geological SciencesBeijing100081China

The Tahe oilfield,located in the southwest of the Akekule nosing structure,northern Tarim basin,was the most prolific oilfield targeting at the Ordovician carbonate reservoirs in *** reservoir space was dominant with fracture-cave systems commonly induced by tectonics and *** hydrocarbon production had proceeded for two decades in the Tahe oilfiled,the control of oil and gas accumulations was still *** this work,the periodic fluid flow induced by cyclic tectonic stresses was proposed as the mechanism of hydrocarbon migration in the fracture-cave systems of carbonate *** fracture networks formed conduits for fluid flow,and the fluid pressure in caves transmitted from stress field provided the driving *** constitutive equations were established among stresses,fracture densities and flow *** quasi-3D geological models were constructed to simulate the flow velocities on the Ordovician surface of Akekule nosing structure in the critical tectonic *** simulated results supplied indicative information on oil and gas migration and accumulation in the tectonic *** with the oil and gas charge history,a conceptual model was built to reveal the multi-stage oil and gas charge and accumulation in the Ordovician of Akekule nosing structure.

关键词： Fracture-cave system Periodic fluid flow Numerical modeling Oil and gas accumulation Akekule nosing structure Tarim Basin

Prototypes,modifications,and hydrocarbon enrichment variations in basins influenced by Tethyan evolution:A comparative analysis of the Persian Gulf Basin and the Sichuan Basin

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Science China Earth Sciences 2023年第12期66卷 2871-2897页

作者： Zhiliang HE Zhijun JIN Shuangjian LI guoping BAI Xueyan LV jinrui guo Jian GAO Jinyin YIN Yingqiang LI Dingye ZHENG China Petroleum&Chemical Corporation Beijing 100728China Institute of Energy Peking UniversityBejing 100871China SINOPEC Petroleum Exploration and Production Research Institute Beijing 102206China SINOPEC Key Laboratory of Geology and Resources in Deep Stratum Beijing 102206China

The hydrocarbon accumulation modes and differences in the Tethyan realm serve as a hot research topic in the petroleum geology community at home and *** the Persian Gulf Basin in the Middle East and the Sichuan Basin in China,situated on the southern and northern sides of the Tethyan realm,respectively,record the whole geological process of the opening and closure of the Prototethys,the Paleotethys,and the Neotethys sequentially,exhibiting anomalous hydrocarbon *** on the analysis of the plate tectonic evolution in the Tethyan realm,this study dissects the structures and hydrocarbon accumulation conditions of both *** by a systematic comparative analysis of the factors controlling hydrocarbon enrichment in the process of plate breakup and convergence in the Tethyan realm,this study proposes petroleum exploration targets in the *** results are as follows:(1)Since the Meso-Neoproterozoic,the Persian Gulf Basin and the Sichuan Basin have undergone similar tectonic evolution in the early stage but different in the late *** the influence of the formation and evolution of the Prototethys,Paleotethys,and Neotethys oceans,both basins experienced multi-stage development and modification,forming two major extension-convergence ***,both basins are characterized by the vertical orderly superimposition of various basin prototypes in the order of rift-intracratonic basin(passive continental margin)-foreland.(2)The fact that the Tethyan realm was long located at medium-low latitudes and the local anoxic environment formed in the process of plate breakup and convergence played a vital role in the formation of extensive source *** source rocks are predominantly distributed in underfilled rifts and deep depressions that were connected to the ocean in the unidirectional continental breakup process;basin-slopes and intra-shelf basins on passive continental margins;basinal lows within intracratonic basins,and underfill

关键词： Tethyan realm Unidirectional breakup and convergence Basin prototype Structural modification Hydrocarbon enrichment Exploration target Persian Gulf Basin Sichuan Basin

High-temperature ferromagnetic metallic phase in LaMnO_(3)/Sr_(3)Al_(2)O_(6)heterostructure

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Journal of Materials Science & Technology 2022年第24期119卷 69-74页

作者： Di Wang Bin He jinrui guo Qixiang Wang Chaoqun Shi Yue Han Hong Fang Jie Wang Nana Zhang Peng Zhang Yanan Chen Changwen Zhang Weiming Lü Shishen Yan Spintronics Institute School of Physics and TechnologyUniversity of JinanJinan250022China Condensed Matter Science and Technology Institute School of Instrumentation Science and EngineeringHarbin Institute of TechnologyHarbin150080China School of Physics Shandong UniversityJinan250100China

To achieve a flexible single-crystal multifunctional membrane,the freestanding process of a rigid epitaxial transition metal oxide thin film via a buffered water-dissolution sacrificial layer has attracted reasonable *** to the difference in chemical potential,specific element affinity,and lattice constant between the target membrane and the sacrificial layer,the freestanding process may cause an indelible change of physics property once the target thin film is sensitive to the above ***,the heterostructures composed of the generally adopted sacrificial layer Sr_(3)Al_(2)O_(6)(SAO)and LaMnO_(3)(LMO)have been systematically *** electrical and magnetic properties of LMO show extreme sensitivity to the thickness of SAO(tSAO).Then we have also found that LMO/SAO heterostructures can exhibit the coexistence of two ferromagnetic phases,the significantly enhanced Curie temperature~342 K,and the large magnetoresistance-23.3%at 300 K,which is similar to the optimal-doped manganite such as La_(2/3)Sr_(1/3)MnO_(3).X-ray diffraction results show that continuously tunable strain from out-of-plane tension to relaxation and then to compression can be generated by adjusting *** strain can stabilize the migrated oxygen from LMO to SAO,which is induced by the large oxygen affinity difference between Bsite Mn and *** is believed that these unexpected electrical/magnetic phenomena are originated from the combined effects of interfacial element diffusion and *** study provides a strategy for designing new magnetic phases,and a reference for the fundamental understanding of strongly correlated transition metal oxide systems in the freestanding process.

关键词： Sr_(3)Al_(2)O_(6) LaMnO_(3) Oxygen affinity Oxygen ions migration Strain effects

基于信息间隙决策理论与动态分时电价的电动汽车接入虚拟电厂双层经济调度策略

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电力自动化设备 2022年第10期42卷 77-85页

作者：呙金瑞张智俊窦春霞南京邮电大学碳中和先进技术研究院江苏南京210023 南京邮电大学自动化学院、人工智能学院江苏南京210023

针对虚拟电厂(VPP)因分布式电源出力的间隙性以及规模化电动汽车(EV)无序充电行为导致的功率波动问题,将信息间隙决策理论(IGDT)与动态分时电价(DTOUP)模型相结合,提出了一种EV接入VPP的双层经济调度策略,并综合考虑了柔性负荷的灵活性... 详细信息

针对虚拟电厂(VPP)因分布式电源出力的间隙性以及规模化电动汽车(EV)无序充电行为导致的功率波动问题,将信息间隙决策理论(IGDT)与动态分时电价(DTOUP)模型相结合,提出了一种EV接入VPP的双层经济调度策略,并综合考虑了柔性负荷的灵活性,以保证VPP能够经济、有效地运行。上层采用IGDT对分布式电源出力的间隙性进行鲁棒建模。为了灵活地引导EV聚合商(EVA)进行充放电规划,提出了基于“车-路”信息融合驱动的EV充电模型,并设计了基于模糊隶属度函数的DTOUP模型与整体最优指标,以提高EVA与VPP整体的经济效益。下层结合DTOUP与“车-路”信息,构建了以EVA与VPP交互成本和EV里程焦虑成本最小化为目标的EVA优化调度模型。算例仿真结果验证了所提策略的有效性。

关键词：虚拟电厂电动汽车信息间隙决策理论动态分时电价双层经济调度 “车-路”信息融合灵活性

Fuzzy Proportional Integral Derivative control of a voice coil actuator system for adaptive deformable mirrors

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Astronomical Techniques and Instruments 2024年第3期1卷 179-186页

作者： Ziqiang Cui Heng Zuo Weikang Qiao Hao Li Fujia Du Yifan Wang jinrui guo Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China CAS Key Laboratory of Astronomical Optics&Technology Nanjing Institute of Astronomical Optics&TechnologyNanjing 210042China University of Chinese Academy of Sciences Beijing 100049China

Research on adaptive deformable mirror technology for voice coil actuators(VCAs)is an important trend in the development of large ground-based telescopes.A voice coil adaptive deformable mirror contains a large number of actuators,and there are problems with structural coupling and large temperature increases in their internal ***,parameters of the traditional proportional integral derivative(PID)control cannot be adjusted in real-time to adapt to system *** problems can be addressed by introducing fuzzy control methods.A table lookup method is adopted to replace real-time calculations of the regular fuzzy controller during the control process,and a prototype platform has been established to verify the effectiveness and robustness of this *** tests compare the control performance of traditional and fuzzy proportional integral derivative(Fuzzy-PID)controllers,showing that,in system step response tests,the fuzzy control system reduces rise time by 20.25%,decreases overshoot by 78.24%,and shortens settling time by 67.59%.In disturbance rejection experiments,fuzzy control achieves a 46.09%reduction in the maximum deviation,indicating stronger *** Fuzzy-PID controller,based on table lookup,outperforms the standard controller significantly,showing excellent potential for enhancing the dynamic performance and disturbance rejection capability of the voice coil motor actuator system.

关键词： Adaptive optics Deformable mirror Voice coil actuator Fuzzy control

地壳滑脱层对大陆裂谷发育演化的影响——基于数值模拟方法

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地球物理学报 2023年第3期66卷 1025-1035页

作者：范庆凯郭金瑞王炎阳中国石化石油勘探开发研究院北京100083

裂谷型大陆边缘是重要的离散型板块边界,其发育演化受控于地壳滑脱层的厚度变化.岩石圈流变性质、温度结构、物质组成等因素决定了地壳滑脱层的厚度.通过地球动力学数值模拟探究地壳滑脱层厚度与裂谷形态间的关系,结果表明,对于强下地壳... 详细信息

裂谷型大陆边缘是重要的离散型板块边界,其发育演化受控于地壳滑脱层的厚度变化.岩石圈流变性质、温度结构、物质组成等因素决定了地壳滑脱层的厚度.通过地球动力学数值模拟探究地壳滑脱层厚度与裂谷形态间的关系,结果表明,对于强下地壳(湿钙长石)模型来说,滑脱层厚度与裂谷上盘断块(H-block)规模呈反相关关系.且当滑脱层总厚度偏小时,以壳-幔滑脱层对上盘断块规模的影响为主;反之,壳间滑脱层的影响更大.岩石圈,尤其是下地壳强度的减弱使地壳滑脱层厚度不断增加,裂谷形态也随之产生由上盘断块缩小到裂谷轴横向跃迁的转变.弱下地壳(湿石英)模型发育明显更厚的地壳滑脱层,直接导致了裂谷轴的离轴跃迁,且迁移距离随滑脱层厚度的增加而不断增大,指示弱岩石圈更容易产生大尺度变形.基于数值模拟结果,对比位于南大西洋中段的刚果盆地和坎波斯盆地可知,二者下地壳流变性质相似,且强度较大,但上盘断块的规模表现出显著差异,揭示出坎波斯盆地下伏滑脱层的厚度显著大于刚果盆地.由于裂谷期两个盆地距其南侧热点、地幔柱活动的距离不同,可能导致岩石圈温度结构的变化,从而产生地壳滑脱层厚度的差异.

关键词：滑脱层大陆裂谷数值模拟温度流变性质

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松辽盆地南部断陷层油气勘探领域

石油实验地质 2010年第4期32卷 326-329页

作者：秦伟军郭金瑞中国石油化工股份有限公司石油勘探开发研究院北京100083

松辽盆地南部地区发育多个富含油气的断陷和凹陷,十屋断陷和长岭断(凹)陷是其中富含油气的地质单元,已发现了一批中小型油气田。研究认为该区发育断陷层和坳陷层2套含油气系统,断陷层油气藏包括火山岩油气藏、地层不整合油气藏、陡坡岩... 详细信息

松辽盆地南部地区发育多个富含油气的断陷和凹陷,十屋断陷和长岭断(凹)陷是其中富含油气的地质单元,已发现了一批中小型油气田。研究认为该区发育断陷层和坳陷层2套含油气系统,断陷层油气藏包括火山岩油气藏、地层不整合油气藏、陡坡岩性油气藏和基岩潜山变质岩油气藏等,主要受有效火山岩储层和有效低孔渗碎屑岩储层发育情况控制,与构造复合分别形成火山岩储层构造油气藏和低渗透砂岩储层构造油气藏;坳陷层油气藏受三角洲前缘相砂体层布控制,在有利的构造背景下形成构造—岩性油气藏。研究认为,松辽盆地南部断陷层勘探领域包括:①火山岩油气藏,②地层不整合油气藏,③陡坡岩性油气藏,④基岩潜山变质岩油气藏。

关键词：勘探领域断陷层油气藏类型松辽盆地

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卫星同步授时偏差对PMU量测的影响

电网技术 2015年第5期39卷 1323-1328页

作者：徐凯毕天姝郭津瑞李劲松张晓莉新能源电力系统国家重点实验室(华北电力大学) 北京市昌平区102206 中国电力科学研究院北京市海淀区100192

同步相量测量单元(phasor measurement unit,PMU)的本质特征是同步量测,因此卫星同步授时信息的准确程度将直接影响PMU量测的精度和可靠性,从而进一步影响电力系统动态过程监测等基于PMU量测的各类应用功能的发挥。文章针对我国安装于... 详细信息

同步相量测量单元(phasor measurement unit,PMU)的本质特征是同步量测,因此卫星同步授时信息的准确程度将直接影响PMU量测的精度和可靠性,从而进一步影响电力系统动态过程监测等基于PMU量测的各类应用功能的发挥。文章针对我国安装于变电站和发电厂的2类PMU分别展开讨论,重点推导了电力系统动态情况下考虑授时偏差的变电站PMU量测相量计算公式,分析了授时偏差对相量幅值与相角量测的影响规律;此外,根据发电厂PMU量测发电机转子角原理,分析了电力系统稳态及动态情况下发电厂PMU实测发电机转子角与授时偏差的关系。最后,通过搭建的物理实验平台,进行了稳态和动态实验,验证了理论分析的正确性。

关键词：同步授时偏差同步相量测量单元离散傅里叶变换稳态量测动态量测