Browsing by Subject "Finite difference method"
Now showing items 1-12 of 12
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A comprehensive rheological study for a flowing polymer-based drilling fluid used for wellbore strengthening
( Society of Petroleum Engineers (SPE) , 2020 , Conference Paper)Loss circulation encountered in highly fractured formations, depleted reservoir, or HP/HT intervals is the root cause of many problems plaguing the oil and gas sector for many years. High pore pressure narrows the window ... -
Full-Duplex Amplify-and-Forward Relaying under I/Q Imbalance
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)A major performance limiter in amplify-and-forward (AF) full-duplex (FD) relaying is the high level of residual self-interference (SI) due to the imperfect estimation of the effective self-interfering channel. One primary ... -
Full-Duplex Jamming and Interception Analysis of UAV-Based Intrusion Links
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)This letter addresses the evaluation of the performance of a full-duplex (FD) jammer and intercepting node, where the FD node attempts to disrupt the communication link of an intruding unmanned aerial vehicle (UAV). The ... -
Novel Actuator Fault Diagnosis Framework for Multizone HVAC Systems Using 2-D Convolutional Neural Networks
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Heating, ventilation, and air conditioning (HVAC) systems are used to condition the indoor environment in buildings. They can be subjected to malfunctioning since they are the most extensively operated buildings' components ... -
Numerical Treatment to a Non-local Parabolic Free Boundary Problem Arising in Financial Bubbles
( Springer International Publishing , 2019 , Article)In this paper, we continue to study a non-local free boundary problem arising in financial bubbles. We focus on the parabolic counterpart of the bubble problem and suggest an iterative algorithm which consists of a sequence ... -
On the Performance of Tactical Communication Interception Using Military Full Duplex Radios
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)Advances in the design of Full-Duplex (FD) transceivers with low residual Self-Interference (SI) levels has led to their deployment in various wireless communication applications. One promising field that FD transceivers ... -
Reinforcement of polyacrylamide-co-tert-butyl acrylate base gel using nanosilica for conformance control at low and high reservoir temperatures
( Society of Petroleum Engineers (SPE) , 2020 , Conference Paper)Challenges of water shut-off, which is categorized under conformance control, are nowadays common in the oil and gas industry. The excessive water quantities produced from oil reservoirs can make the production process ... -
Secrecy Performance of Cooperative NOMA System with Multiple Full-Duplex Relays against Non-Colluding/Colluding Eavesdroppers
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)In 5G and beyond wireless communication net-works, non-orthogonal multiple access (NOMA) and Full-Duplex (FD) techniques are considered as promising key techniques. However, the secrecy in NOMA systems has proven to be ... -
Secure Performance Analysis for Full-Duplex Cooperative NOMA System in the Presence of Multiple Eavesdroppers
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)This paper investigates the physical layer security of a full-duplex (FD) Decode-and-Forward (DF) NOMA network assumed to undergo independent and identically distributed Nakagami-m fading. Herein, we provide a secrecy ... -
Self-Energized UAV-Assisted scheme for cooperative wireless relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Unmanned aerial vehicles (UAVs) have recently been envisaged as an enabling technology of 5G. UAVs act as an intermediate relay node to facilitate uninterrupted, high quality communication between information sources and ... -
Stress analysis in functionally graded rotating disks with non-uniform thickness and variable angular velocity
( Elsevier , 2016 , Article)Stress field in functionally graded (FG) rotating disks with non-uniform thickness and variable angular velocity is studied numerically. The elastic modulus and mass density of the disks are assumed to be varying along the ... -
Transverse vibration and stability of a functionally graded rotating annular disk with a circumferential crack
( Elsevier Ltd , 2016 , Article)Out of plane vibration of rotating disks limits their performances especially at certain critical speed. The critical speed of these disks may be affected by the presence of defects such as a circumferential crack. In this ...