478 Result(s)
within
Chapter
Dong-** Yu
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Chapter and Conference Paper
Application of Pre-stack Inversion in Fine Potential Tap** of Old Oilfield
In view of the problems of fast phase change, strong multi-solution of the position prediction of the inter-well narrow channel sand body and unclear type of the sand body connectivity in Daqing Oilfield, this...
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Chapter and Conference Paper
Dual-Fisheye Image Stitching via Unsupervised Deep Learning
Constructing panoramic images from a dual-fisheye lens has been increasingly used along with the recent booming of new computer vision applications, such as virtual reality (VR) and augmented reality(AR). The ...
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Chapter and Conference Paper
An Engineered High Performance Optically Pumped Compact Cesium Atomic Clock
As a primary frequency standard, the cesium atomic clock has a wide range of military and civilian applications. The cesium atomic clock realized by the optical pum** principle has a high atom utilization ra...
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Chapter and Conference Paper
A Low-Latency Hardware Accelerator for YOLO Object Detection Algorithms
Object detection is an important computer vision task with a wide range of applications, including autonomous driving, smart security, and other domains. However, the high computational requirements poses chal...
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Chapter and Conference Paper
Monitoring of Cable Force Using Wired and Wireless Methods Based on PZT TRANSDUCER: A Feasibility Study
With the continuous growth of traffic load, maintenance has become the main task of various management departments. The cable force loss is directly related to the long-term service performance and life of the...
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Chapter and Conference Paper
A Velocity Controller for Quadrotors Based on Reinforcement Learning
UAVs based on PID controllers are having increasing difficulties in handling complex tasks. Whereas, reinforcement learning-based high-dimensional models provide an important entry point for flight control to ...
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Chapter and Conference Paper
Salt Precipitation Law of Formation Water During CO2 Injection into Depleted Gas Reservoirs
After CO2 is injected into the formation, some CO2 will dissolve in the formation water and react with rocks, changing the ion type and content of the formation water, accompanied by water evaporation and salting...
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Chapter and Conference Paper
Coupled Heat Transfer Characteristics of SiC High Temperature Heat Exchanger in Solid Oxide Fuel Cell
High temperature heat exchanger is a crucial equipment in the BOP of SOFC. Replacing the commonly used metal materials with high-temperature resistant SiC ceramic materials for the manufacturing of SOFC high-t...
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Chapter and Conference Paper
Dynamic Evaluation Technology of Measurement Performance Group of High Voltage Transformer Based on Virtual Standard Device
Aiming at the problem that it is difficult to find abnormal conditions of Voltage transformer and the operation status is unknown, this paper proposes a dynamic evaluation technology for measuring performance ...
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Chapter and Conference Paper
Study on Fit Clearance and Motion Performance of All-Metal PDM
The stator and rotor of the all-metal positive displacement motors (PDM) adopt the clearance fit. The size of the clearance will have a significant impact on the working characteristics, which is manifested in...
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Chapter and Conference Paper
Practical Application of Geological Engineering Integrated Horizontal Well Drilling Technology in Complex Fault Block Reservoir of Niger
Niger is located in the hinterland of Sahara Desert, where fault blocks are scattered and distributed in a zonal pattern. The typical fault block, Dibeilla N-1, whose reservoir is shallow and heterogeneous, an...
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Chapter and Conference Paper
Research and Application of Anti-Emulsification Oil Washing Workover Fluid Technology
In order to solve the reservoir pollution during the workover operation in the complex fault block oilfield of Dagang Oilfield, especially the high pour point oil blocks represented by **aoji and Duanliubao, m...
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Chapter and Conference Paper
Parameter Tuning of PMSM Sliding Mode Control Based on Multi-agent Reinforcement Learning
Firstly, this paper establishes a multi-agent reinforcement learning parameter tuning framework for PMSM sliding mode controller, and uses TD3 as the algorithm of agent learning. Secondly, the final parameters...
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Chapter and Conference Paper
A Ship Target Intelligent Detection Algorithm Based on Improved YOLOv5s
Currently, the deep learning-based synthetic aperture radar (SAR) image target detection methods have limited detection ability on small targets, and their accuracy needs to be improved either. In order to imp...
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Chapter and Conference Paper
Research on Combination Suppression Technology of Interlayer Multiple Wave in Huhehu Depression
Multiple sets of coal seams developed in Damoguaihe Formation and Nantun Formation in Huhehu Depression, Hailar Basin, leading to the development of interlayer multiples, which seriously affects formation imag...
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Chapter and Conference Paper
Analysis of Gas Well Production Capacity Control Factors and Evaluation of Favorable Development Areas in the Maokou Formation in Central Sichuan
Since 2020, significant breakthroughs has been made in the exploration of the Permian Maokou Formation in central Sichuan, which has become an important field for increasing conventional gas reserves and produ...
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Chapter and Conference Paper
Safe and Efficient Drilling Technology and Practice of High Risk Gas Reservoirs on the Right Bank of the Amu Darya Rive
The right bank of Amu Darya gas field is an important oil and gas cooperation block of China ‘s overseas oil and gas business in the ‘ silk road economic belt ‘, due to the local shallow secondary high pressur...
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Chapter and Conference Paper
PSD Based Closed-Loop Control for Lidar System: Design and Application
Lidar is widely used in aerospace vehicle to detect specific object. However, the open-loop lidar systems are usually hard to reach the desired control accuracy. To deal with this problem, this paper uses the ...
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Chapter and Conference Paper
Effect of Schroth Exercise on Pulmonary Function and Exercise Capacity in Patients with Severe Adolescent Idiopathic Scoliosis
Purpose: This study aimed to investigate the effect of Schroth exercise on pulmonary function and exercise capacity in patients with severe adolescent idiopathic scoliosis (AIS). Methods: Forty subjects with seve...
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Chapter and Conference Paper
Thermo-Structural Coupling Analysis and Verification of Antenna Deployment Hinges
In order to analyze the thermal deformation characteristics of antenna deployable hinge, the temperature field and thermal deformation of the deployable hinge were simulated and analyzed. A set of test system ...
