Acoustic emission (AE) is widely used for fault detection and localization, from structures like concrete buildings or vehicles to transportation pipeline for fuel, water and natural gas. Conventional digital signal processing techniques was widely…
Today, modern industrial equipment is very complex as it involves sophisticated assets and systems. Thus, machine equipment optimization and safety have become operators' main concerns in the quest for maintaining optimum operational efficiency,…
The water injection system, which is prone to failure and high energy consumptions, consists of many different parts, perform complex system behaviors and has a high degree of correlation with the environment and strong coupling with each other. In…
At present, the application of big data analysis technology is developing rapidly. It has achieved remarkable results and benefits in the electricity business, the internet and other areas. But in the field of petroleum engineering, the big data…
Many methods have been proposed for leak detection in pipelines. The method based on the acoustic signals created by the leakage is a non-destructive method and has presented reliable results. However, applying such a method in noisy environments is…
Based on inverse hydraulic-thermodynamic transient analyses and on an improved particle swarm optimization (PSO), a leak detection and localization method is proposed for liquid pipelines. The finite volume method is employed to numerically model the…
A suitable probabilistic scenario set of load demand and natural characteristics of renewable energy is becoming a crucial issue in power system planning studies. Properly addressing the impact of potentially thousands of residential PV plants on the…
The stochastic fluctuation characteristics of intermittent renewable energy sources and energy loads, as well as their multi-energy interactions and dependencies, have negligible effects on the operation and analyses of integrated energy systems.…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
This paper presents an energy storage system (ESS) sizing model and reliability assessment framework to quantify reliability improvements due to ESS of electric energy systems with high penetration of renewables. The model formulation takes into…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
A graph-theoretic system decomposition method based on modified cosine-based similarity is proposed to solve the current problem of system decomposition of industrial processes. The correlations between input variables and output variables are…
Control loop performance assessment (CLPA) has attracted considerable interest in recent years. Several methods for CLPA are proposed by researchers in last decade. Statistical methods are one of most important methods in CLPA. This paper addresses…
The fault detection and diagnosis is very important for a security of control systems. In this paper, the author presents a fault diagnosis technique of process based on the correlation coefficient in process variables. The process diagnosis function…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
This paper presents an energy storage system (ESS) sizing model and reliability assessment framework to quantify reliability improvements due to ESS of electric energy systems with high penetration of renewables. The model formulation takes into…
Many methods have been proposed for leak detection in pipelines. The method based on the acoustic signals created by the leakage is a non-destructive method and has presented reliable results. However, applying such a method in noisy environments is…
This thesis introduces basic theory of stress wave test, proposes orientation of tri sensor based on time delay estimation of Hilbert Transform and its application in stress wave test.
Based on regional crude oil pipe networks in China, this paper calculates fractal dimensions of weighted length-radius with the help of the software of Arc GIS. Then this paper analyzes the correlation between crude oil pipe networks' fractal…
It is important to assess environmental impact of intelligent transportation systems, and hence developing a vehicle emission model with high accuracy has been a long-standing topic in transportation research. However, current vehicle emission models…
In the recent years, industries such as aeronautical, railway, and petroleum has transitioned from corrective/preventive maintenance to condition based maintenance (CBM). One of the enablers of CBM is Prognostics which primarily deals with prediction…
Virgin coconut oil (VCO) was used as co-extractant with supercritical carbon dioxide (scCO2) extraction for obtaining xanthones from mangosteen pericarp (MP) without organic co-solvents. In each experiment, 120 g of dried MP that had median particle…
Within a wide range of carbon to nitrogen (C/N) ratio, the correlation model between polyhydroxyalkanoates (PHA) and extracellular polymeric substances (EPS) remains unclear during treating industrial wastewater. The correlation between PHA and EPS…
We investigate the diversification benefits of energy assets in the setting of commodity financialization using data on crude oil futures and Sector ETFs (SPDRs). Correlations between commodities and financial assets increased during the…
This chapter initially covers the definition and main elements of artificial neural networks and how they were originally developed from the behavior of biological neurons. Then the theory behind how neural network finds the pattern between input and…
This study provides a detailed scientific data on the quality of groundwater in Oleh. It aimed at helping to facilitate the planning of potable water supply scheme for the community. Water samples from boreholes (BHs) and hand-dug wells (HDWs) in the…
We present evidence on breaks, stationarity, trends, dynamic correlations, and cycles in prices for eight agricultural and industrial commodities over seven centuries. We utilise a sequential testing procedure that endogenously determines structural…
This study provides a detailed scientific data on the quality of groundwater in Oleh. It aimed at helping to facilitate the planning of potable water supply scheme for the community. Water samples from boreholes (BHs) and hand-dug wells (HDWs) in the…