970 Result(s)
within
Conference Paper
Hong-**a Li
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Chapter and Conference Paper
Formability and Spring-Back of Light Metals at High Strain Rates
Formability or plasticity of light metals, such as aluminum alloys and titanium alloys, are quite strain rate sensitive. For most normal plastic forming processes like forging, stam**, rolling and extrusion,...
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Chapter and Conference Paper
Effect of MgO, MnO, and Al2O3 on Vanadium Extraction in Sodium Roasting-Water Leaching Process of Vanadium Slag
The effect of different oxides in , such as MgO, MnO, and Al2O3 on in the sodium roasting-water leaching process has been investigated. The results show that the increase of these oxides has a positive influen...
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Chapter and Conference Paper
Extraction of Vanadium from High Calcium and High Phosphorus Vanadium Slag by Magnesiation Roasting-Acid Leaching
-acid leaching is carried out to extract from (HCPVS). The effects of roasting and leaching conditions on and phosphorus extraction are studied. In optimal conditions, the extraction efficiency of reac...
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Chapter and Conference Paper
Intelligent Prediction Technology for Production of Tight Oil Based on Data Analysis
China is rich in tight oil resources, with a wide distribution range and a large amount of resources, making it one of the key areas for strategic replacement of future oil reserves and production. In response...
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Chapter and Conference Paper
Research on Drag Type Multi-stage Fracturing Technology for Casing Damaged Wells
In the process of oilfield development, some casing-damaged wells occur, and the remaining oil controlled by them requires fine subdivision fracturing to tap the potential. Developed Φ95 mm small-diameter pack...
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Chapter and Conference Paper
Tectonic Styles and Hydrocarbon Accumulation Characteristics of Concealed Thrust Belt in Eastern Margin of Pre-Caspian Basin
The Pre-Caspian Basin is located between the Eastern European platform and the Kazakh plate. The eastern margin of the Basin is the Ural piedmont thrust belt, which is a typical concealed piedmont thrust belt ...
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Chapter and Conference Paper
Optimization Study of Conversion Timing for Secondary Development & Tertiary Recovery in the Ultra-High-Water-Cut Oilfield Based on Multi-factor Decision-Making
With the entry of oilfield into the middle and late stages of development, in order to maintain stable production and increase recoverable reserves, the technology of Secondary Development & Tertiary Recovery has...
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Chapter and Conference Paper
Leaching Kinetics of Vanadium from Calcification Roasted Vanadium Slag in (NH4)2CO3
leaching method is an efficient and green selective method. Studying its mechanism can improve the adaptability and industrial production of this method and further promote the development of green extrac...
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Chapter and Conference Paper
A Long-Tail Relation Extraction Model Based on Dependency Path and Relation Graph Embedding
Distant supervision, a method for relation extraction, leverages knowledge base triples to label entities and relations in text, but this leads to noisy labels and long-tail problems. Among long-tail dependenc...
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Chapter and Conference Paper
Application and Practice of Geological Engineering Integrated Tight Oil Fracturing Technology in Jidong Oilfield
The tight oil reservoir of X5 fault block in Jidong oilfield is characterized by multi-thin and inter-bedded reservoir with poor physical property and strong heterogeneity. Vertical wells located in study area...
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Chapter and Conference Paper
Research on Oilfield Surface Environment Assessment Method Based on High-Precision Global Land Cover Data Analysis
In recent years, the country has successively passed a series of laws and regulations on the reform of the mining rights system, especially related to exploration and construction, land use, and ecological env...
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Chapter and Conference Paper
K12 Blended Learning in China of “Education+” Era: From the Perspective of Ecology
In the process of digital transformation of education, blended learning is an important approach to promote the deepening of curriculum and teaching reform in basic education. However, K12 blended learning has...
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Chapter and Conference Paper
Magnesium Ion Embedded and Graphene Modified Vanadium Pentoxide Cathode for Superior Magnesium Storage Performance
The strong interaction between Mg2+ deteriorates crystal stability, which restricts the highly storage of vanadium pentoxide. In contrast to the typical strategy of introducing interlayer water, the establish...
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Chapter and Conference Paper
A Novel Approximation Algorithm for Max-Covering Circle Problem
We study the efficient approximation algorithm for max-covering circle problem. Given a set of weighted points in the plane and a circle with specified size, max-covering circle problem is to find the proper p...
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Chapter and Conference Paper
Evaluation of Sensitivity Damage Degree of Sandstone Geothermal Reservoir in Lantian Bahe Formation in Guanzhong Area
Based on the petrology characteristics of the sandstone geothermal reservoirfrom Lantian Bahe Formation in the middle and deep layers, Guanzhong area, Shaanxi Province, natural core and artificial core models ...
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Chapter and Conference Paper
Sensitivity Quantification Study on the Main Influencing Factors of Water-Flooding Development in Medium Permeability Reservoir
There are many factors that affect the development effect In the development process of medium porosity and permeability reservoirs. Clarifying the degree of influence of different influencing factors is condu...
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Chapter and Conference Paper
State-Integration Neural Network for Modeling of Forced-Vibration Systems
Dynamic analysis of forced-vibration systems could be computationally inefficient or even difficult to converge if the systems are highly complicated. Rapid advances in machine learning make it possible to est...
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Chapter and Conference Paper
Frequency-Decomposed Multi-seismic-Attributes RGB Fusion Technology Applied for the Paleogene Sokor Formation Reservoir Prediction in K Area, Termit Basin, Niger
The study area K is located in the center of the Fana Low Uplift in the Termit Basin, Niger, which is known as one of hydrocarbon-prone zones in this basin, where the oil producing Paleogene Sokor reservoir is...
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Chapter and Conference Paper
Intelligent Diagnosis System for Oil Well Underground Conditions Based on Convolutional Neural Network
The existing pum** unit downhole working condition diagnosis system has a high false alarm rate and a low accuracy rate of diagnosis for complex working conditions and abnormal working conditions. To address...
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Chapter and Conference Paper
The Configuration Design and Control for an Ejector-Based Hydrogen Recirculation System on High-Power Fuel Cell Engines
A promising direction for high-power fuel cell engines is the ejector-based hydrogen recirculation system. As a first step, a hybrid hydrogen recirculation system configuration, consisting of a passive single ...
