water injection is an enhanced oil recovery method which is applied for number of reservoirs especially in the offshore fields around the world. sea-water injection process is usually associated with important concerns affecting the efficiency, safety, and economy of the operation like formation damage, mineral scaling, early breakthrough and corrosion. incompatibility between injected and form...

Retention and selectivity in gas chromatography (GC) occur because of the thermodynamics phase transition from vapor following sample injection to solution being dissolved stationary phase. Analytes then move along column is flowing. In this installment, we quickly review basic underlying separation GC, see how impacts retention. Last month, saw seemingly large differences polarity may still ge...

Abstract Fault-karst reservoirs are featured by complex geological characteristics, and accurate fast simulation of such kind using traditional simulator methods is pretty hard. Herein, we tried to discrete the fault-karst structures into one-dimensional connected units connecting well, fracture cave based on reservoir static physical parameters injection-production dynamics. Two characteristic...

in the present study, a model of a large lithium polymer (li-po) battery for use in the simulation of hybrid electric vehicles (hevs) is developed. to attain this goal, an equivalent circuit (ec) consisting of a series resistor and two rc parallel networks is considered. the accuracy and the response time of the model for use in an hev simulator are studied. the battery parameters identificatio...

the application of a flight simulator with six degree of freedom (6dof)) in design and analysis of rocket systems is essential. the calibration of a 6dof flight simulator is a challenging problem. this paper focuses on the calibration of a flight simulator and intends to answer the following questions: 1) does experimental design have significant impact on calibration quality? if so, which expe...

Water injection is an enhanced oil recovery method which is applied for number of reservoirs especially in the offshore fields around the world. Sea-water injection process is usually associated with important concerns affecting the efficiency, safety, and economy of the operation like formation damage, mineral scaling, early breakthrough and corrosion. Incompatibility between injected and ...

BACKGROUND AND STUDY AIMS The Erlangen Active Simulator for Interventional Endoscopy (EASIE) was introduced in 1997 as a training model for interventional endoscopy. Objective evidence of the benefits of training with this model has not previously been published. As part of two long-term projects, the benefits of a 1-day training course with the "compactEASIE" simulator were evaluated. MATERI...

a time-domain approach is presented to calculate electromagnetic fields inside a large electromagnetic pulse (emp) simulator. this type of emp simulator is used for studying the effect of electromagnetic pulses on electrical apparatus in various structures such as vehicles, a reoplanes, etc. the simulator consists of three planar transmission lines. to solve the problem, we first model the meta...

The smart load phenomenon of electric spring has been proven to be an important aid the distribution network in terms voltage stability. While performance ES is commendable, its operational range presents a significant challenge. effectiveness depends on various factors, including choice control structure, ratio, placement, and non-critical power factor. To address challenges regarding noncriti...