检索结果-南通市图书馆

An optimal flow rate allocation model of the oilfield treated oil pipeline network

Petroleum 2024年第1期10卷 93-100页

作者： Hai Li Tianyou Fan kun Wang Xueyuan Long yu He Meng Wang Wen cheng Qian Huang Huirong Huang Weichao yu PetroChina Southwest Oil&Gasfield Company Chengdu 610056China China Petroleum Planning&Engineering Institute Beijing 100083China School of Petroleum Engineering Chongqing University of Science and TechnologyChongqing 401331China PipeChina Oil&Gas Control Center Dongtucheng RoadChaoyang DistrictBeijing 100028China

Oilfield treated oil pipeline network is the link connecting the upstream oilfields and the downstream *** to the differences in operating costs and transportation fee between different pipelines and the fluctuation in the demand and sales prices of the treated oil,there is an optimal flow allocation plan for the pipeline network to make the oilfield company obtain the highest social and economic *** this study,a mixed integer nonlinear programming(MINLP)model is developed to determine the optimal flow rate allocation plan of the large-scale and complex treated oil pipeline network,and both the social and economic benefits are considered *** optimization objective is the multi-objective which includes the largest user satisfaction and the highest economic *** model constraints include the oilfield production capacity,refinery demand,pipeline transmission capacity,flow,pressure,and temperature of the node and station,and the pipeline hydraulic and thermal *** 3.7 is utilized for the programming of the off-line calculation procedure and the MINLP model,and GUROBI 9.0.2 is served as the MINLP ***,the model is applied to a real treated oil pipeline network located in China,and three optimization scenarios are *** social benefit,the values of the user satisfaction of each refinery and the total network are 1 before and after optimization for scenarios 1,2,and *** economic benefit,the annual revenue can be increased by 0.227,0.293,and 0.548 billion yuan after the optimization in scenario 1,2,and 3,respectively.

关键词： Treated oil pipeline network Flow rate allocation Optimal User satisfaction Economic benefit

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Healable and Mechanically Enhanced Composite with Segregated Conductive Network Structure for High‑Efficient Electromagnetic Interference Shielding

引用

Nano-Micro Letters 2021年第11期13卷 18-31页

作者： Ting Wang Wei‑Wei Kong Wan‑cheng yu Jie‑Feng Gao kun Dai Ding‑Xiang Yan Zhong‑Ming Li College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065People’s Republic of China The College of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009People’s Republic of China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001People’s Republic of China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065People’s Republic of China

It is still challenging for conductive polymer composite-based electromagnetic interference(EMI)shielding materials to achieve long-term stability while maintaining high EMI shielding effectiveness(EMI SE),especially undergoing external mechanical stimuli,such as scratches or large ***,an electrostatic assembly strategy is adopted to design a healable and segregated carbon nanotube(CNT)/graphene oxide(GO)/polyurethane(PU)composite with excellent and reliable EMI SE,even bearing complex mechanical *** negatively charged CNT/GO hybrid is facilely adsorbed on the surface of positively charged PU microsphere to motivate formation of segregated conductive networks in CNT/GO/PU composite,establishing a high EMI SE of 52.7 dB at only 10 wt%CNT/GO *** Diels–Alder bonds in PU microsphere endow the CNT/GO/PU composite suffering three cutting/healing cycles with EMI SE retention up to 90%.Additionally,the electrostatic attraction between CNT/GO hybrid and PU microsphere helps to strong interfacial bonding in the composite,resulting in high tensile strength of 43.1 MPa and elongation at break of 626%.The healing efficiency of elongation at break achieves 95%when the composite endured three cutting/healing *** work demonstrates a novel strategy for developing segregated EMI shielding composite with healable features and excellent mechanical performance and shows great potential in the durable and high precision electrical instruments.

关键词： Electrostatic attraction Healable EMI shielding Diels–Alder reaction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

侵彻爆炸联合作用下超高性能混凝土遮弹层设计

引用

爆炸与冲击 2025年第1期45卷 013301-1-013301-14页

作者：程月华吴昊岑国华张瑜同济大学土木工程学院上海200092

为了准确评估超高性能混凝土（ultra-high performance concrete, UHPC）遮弹层在战斗部侵彻爆炸作用下的损伤破坏并建立可靠的计算方法，首先，开展了UHPC靶体抗105 mm口径弹体侵彻和5 kg TNT炸药爆炸联合作用试验，获取了侵彻作用后... 详细信息

为了准确评估超高性能混凝土（ultra-high performance concrete, UHPC）遮弹层在战斗部侵彻爆炸作用下的损伤破坏并建立可靠的计算方法，首先，开展了UHPC靶体抗105 mm口径弹体侵彻和5 kg TNT炸药爆炸联合作用试验，获取了侵彻作用后以及侵彻与爆炸联合作用后弹靶的损伤破坏数据;然后，建立了UHPC靶体抗弹体侵彻与爆炸作用的有限元模型，通过对上述试验和已有的有限厚UHPC板埋置装药爆炸试验进行数值仿真分析，验证了有限元模型和分析方法的可靠性;最后，对比了SDB、WDU-43/B和BLU-109/B等3种典型原型战斗部侵彻与爆炸联合作用下，UHPC遮弹层和普通混凝土遮弹层的临界贯彻和震塌厚度。结果表明：3种战斗部侵彻爆炸联合作用下，遮弹层的临界贯穿厚度和震塌厚度范围分别为1.30～2.60 m和1.70～5.00 m，相应的临界贯穿系数和震塌系数范围分别为1.81～2.17和2.46～4.17;与普通混凝土遮弹层对比，3种战斗部侵彻爆炸联合作用下UHPC遮弹层的开坑直径减小了34.4%～42.4%，临界贯穿和震塌厚度分别减小了7.1%～31.6%和39.7%～52.8%。研究结果可为UHPC遮弹层的抗力评估和设计提供参考。

关键词：超高性能混凝土遮弹层侵彻爆炸防护设计

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influence of ash composition on the sintering behavior during pressurized combustion and gasification process

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第3期13卷 230-238页

作者： Ni-jie JING Qin-hui WANG yu-kun YANG Le-ming cheng Zhong-yang LUO Ke-fa CEN State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

To determine the ash characteristics during fluidized bed combustion and gasification purposes, the investigation of the impacts of chemical composition of Jincheng coal ash on the sintering temperature was conducted. A series of experiments on the sintering behavior at 0.5 MPa was performed using the pressurized pressure-drop technique in the combustion and gasification atmospheres. Meanwhile, the mineral transformations of sintered ash pellets were observed using X-ray diffractometer （XRD） analyzer to better understand the experimental results. In addition, quantitative XRD and field emission scanning electron microscope/energy dispersive X-ray spectrometer （FE-SEM/EDS） analyses of ash samples were used for clarifying the detailed ash melting mechanism. These results show that the addition of Fe203 can obviously reduce the sintering temperatures under gasification atmospheres, and only affect a little the sintering temperature under combustion atmosphere. This may be due to the presence of iron-bearing minerals, which will react with other ash compositions to produce low-melting-point eutectics. The FE-SEM/EDS analyses of ash samples with Fe203 additive show consistent results with the XRD measurements. The CaO and Na20 can reduce the sintering temperatures under both the combustion and gasification atmospheres. This can be also contributed to the formation of low-melting-point eutectics, decreasing the sintering temperature. Moreover, the fluxing minerals, such as magnetite, anhydrite, muscovite, albite and nepheline, contribute mostly to the reduction of the sintering temperature while the feldspar minerals, such as anorthite, gehlenite and sanidine, can react with other minerals to produce low-melting-point eutectics, and thereby reduce the sintering temperatures.

关键词： Ash composition Sintering temperature X-ray diffractometer (XRD) Field emission scanning electron microscope/energy dispersive X-ray spectrometer (FE-SEM/EDS)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

MJO potential predictability and predictive skill in IAP AGCM 4.1

引用

Atmospheric and Oceanic Science Letters 2016年第5期9卷 388-393页

作者： WANG kun LIN Zhao-Hui LING Jian yu yue WU cheng-Lai International Center for Climate and Environment Sciences(ICCES) Institute of Atmospheric Physics(lAP)Chinese Academy of Sciences(CAS)BeijingChina College of Earth Science University of Chinese Academy of SciencesBeijingChina Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjingChina State Key Laboratory of Numerical Modeling for Atmospheric Science and Geophysical Fluid Dynamics(LASG) IAPCASBeijingChina

A 30-year hindcast was performed using version 4.1 of the IAP AGCM（IAP AGCM4.1）, and its potential predictability of the MJO was then evaluated. The results showed that the potential predictability of the MJO is 13 and 24 days, evaluated using the signal-to-error ratio method based on a single member and the ensemble mean, respectively. However, the MJO prediction skill is only9 and 10 days using the two methods mentioned above. It was further found that the potential predictability and prediction skill depend on the MJO amplitude in the initial conditions. Prediction initiated from conditions with a strong MJO amplitude tends to be more skillful. Together with the results of other measures, the current MJO prediction ability of IAP AGCM4.1 is around 10 days, which is much lower than other climate prediction systems. Furthermore, the smaller difference between the MJO predictability and prediction skill evaluated by a single member and the ensemble mean methods could be ascribed to the relatively smaller size of the ensemble member of the ***, considerable effort should be made to improve MJO prediction in IAP AGCM4.1 through application of a reasonable model initialization and ensemble forecast strategy.

关键词： MJO IAP AGCM 4.1 predictability prediction skill

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Double-peaked decay of transient photovoltage in nanoporous ZnO/n-Si photodetector

引用

Science China(Physics,Mechanics & Astronomy) 2014年第6期57卷 1206-1208页

作者： LIU Hao FU cheng ZHAO kun State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection China Petroleum and Chemical Industry Federation(CPCIF)

In the present work,a nanoporous ZnO/n-Si structure has been proposed as a new type infrared *** by one laser pulse with wavelength of 1064 nm,this structure exhibits a double-peak decay of transient ***,the time interval between these two peaks increases linearly with the increase of irradiated pulsed energy,indicating the promising application of this hetero-junction in photo-energy detection of infrared pulsed laser.A possible mechanism for this particular photoresponse has been discussed.

关键词： ZnO sol-gel photovoltage photodetector

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Field-effect modulation of anomalous Hall effect in diluted ferromagnetic topological insulator epitaxial films

引用

Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 100-104页

作者： Cui Zu Chang Min Hao Liu Zuo cheng Zhang Ya yu Wang Ke He Qi kun Xue State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Francis Bitter Magnet Lab Massachusetts Institute of Technology

High quality chromium （Cr） doped three-dimensional topological insulator （TI） Sb2Te3 films are grown via molecular beam epitaxy on heat-treated insulating SrTiO3 （111） substrates. We report that the Dirac surface states are insensitive to Cr doping, and a perfect robust long-range ferromagnetic order is unveiled in epitaxial Sb2 xCrxTe3 films. The anomalous Hall effect is modulated by applying a bottom gate, contrary to the ferromagnetism in conventional diluted magnetic semiconductors （DMSs）, here the coercivity field is not significantly changed with decreasing cartier density. Carrier-independent ferromag- netism heralds Sbz_xCrxTe3 films as the base candidate TI material to realize the quantum anomalous Hall （QAH） effect. These results also indicate the potential of controlling anomalous Hall voltage in future TI-based magneto-electronics and spintronics.

关键词： topological insulators (TIs) anomalous Hall (QAH) effect electrical field-effect carrier-independent ferromagnetism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

引用

Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle cheng Dong He Qiang Sun Xuhang Ma Francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DMAcPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide Magnetron sputter Defect Stability Perovskite solar cell

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

新疆小麦过氧化物酶活性基因TaPod-A1、TaPod-A3和TaPod-D1等位变异及分布规律

引用

作物学报 2025年第1期51卷 68-78页

作者：刘鑫源程宇坤王丽丽战帅帅马孟瑶郭玲耿洪伟新疆农业大学农学院/新疆优质专用麦类作物工程技术研究中心新疆乌鲁木齐830052 新疆作物遗传改良与种质创新重点实验室新疆乌鲁木齐830052

小麦面粉的颜色是其品质分级的重要指标,为了使小麦面粉的品质得到进一步提升,本研究利用位于TaPod-A1、TaPod-A3和TaPod-D1位点基因的功能标记对110份新疆小麦品种(系)进行等位变异基因检测。基因型与表型方差分析结果显示, TaPod-A1、... 详细信息

小麦面粉的颜色是其品质分级的重要指标,为了使小麦面粉的品质得到进一步提升,本研究利用位于TaPod-A1、TaPod-A3和TaPod-D1位点基因的功能标记对110份新疆小麦品种(系)进行等位变异基因检测。基因型与表型方差分析结果显示, TaPod-A1、TaPod-A3和TaPod-D1位点的等位变异类型TaPod-A1b (35.5%)、TaPod-A3c (53.6%)和TaPod-D1b(60%)较其他等位变异类型TaPod-A1a (64.5%)、TaPod-A3a (46.4%)和TaPod-D1a(40%)均具有较高的POD活性。在新疆小麦材料中, TaPod-A1、TaPod-A3和TaPod-D1的3个不同基因位点上高POD活性的优异等位变异类型的分布频率均表现为引进品种(系)≈自育品种(系)>地方品种。TaPod-A3b在110份新疆小麦材料中并未检测出,说明该等位变异为稀有等位变异。具有TaPod-A1、TaPod-A3和TaPod-D1基因等位变异组合品种(系)的平均POD活性高低依次为TaPod-A1b/TaPod-A3c/TaPod-D1b (2836.25 U g^(–1) min^(–1))> TaPod-A1b/TaPod-A3c/TaPod-D1a (2796.00 U g^(–1)min^(–1))> TaPod-A1b/TaPod-A3a/TaPod-D1b(2520.31Ug^(–1)min^(–1))> TaPod-A1a/TaPod-A3c/TaPod-D1b(2473.91Ug^(–1)min^(–1))> TaPod-A1a/TaPod-A3a/TaPod-D1b(2407.65Ug^(–1)min^(–1))> TaPod-A1b/TaPod-A3a/TaPod-D1a(2339.06Ug^(–1)min^(–1))> TaPod-A1a/TaPod-A3c/TaPod-D1a(2320.38Ug^(–1)min^(–1))> TaPod-A1a/TaPod-A3a/TaPod-D1a(2210.69Ug^(–1)min^(–1))。其中,具有TaPod-A1b/TaPod-A3c/TaPod-D1b等位变异基因的活性(2836.25Ug^(–1)min^(–1))极显著高于具有TaPod-A1a/TaPod-A3a/TaPod-D1a(2210.69Ug^(–1)min^(–1))(P<0.01)的品种,说明具有较多优异等位变异类型的品种具有较高的POD活性。

关键词：小麦过氧化物酶等位变异分子标记检测

来源：

维普期刊数据库

同方期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Research of Boiler Combustion Regulation for Reducing NOx Emission and its Effect on Boiler Efficiency

引用

Journal of Thermal Science 2007年第3期16卷 270-276页

作者： WANG Xue-dong LUAN Tao cheng Lin XIAO kun Shandong University Jinan 250061 Shandong Electric Research Institute Jinan 250002

The effect of boiler combustion regulation on NOx emission of two 1025t/h boilers has been studied. The researches show that NOx emission is influenced by coal species, operation conditions, etc, and can be reduced by regulating the combustion conditions. The effect of combustion regulation on boiler efficiency has also been checked.

关键词： boiler thermal efficiency nitric oxides combustion regulation NOx emission

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：