Very few studies have investigated the adsorption performance of hydrophobic and hydrophilic silicas with dissolved organics in water, which is a required GPS final step during produced water treatment.The cost of functionalization also hinders the use of hydrophobic materials as sorbents.Novel hydrophilic silicas, prepared at low temperature and a
This paper proposes a time-varying amplitude frequency monitoring method based on sliding window FFT of sub-synchronous oscillation to identify the time-varying modal parameters of the oscillating signals on-line.Firstly, windowed interpolation methods are used to reduce the spectral leakage and fence effect, and decrease the FFT identification err
In a more connected world than ever, with an expanding global market, old businesses that once used to dominate the markets found themselves facing big problems when new business models emerged, when the internet led to the birth of e-commerce and different kinds of shopping channels and experiences.Globalization proved to be helpful for those who
BackgroundHypertension in preterm infants can result in life-threatening outcomes.However, there is limited evidence to guide the pharmacologic management of hypertension in preterm infants.Without population-level studies of the pharmacologic strategies that clinicians currently employ for hypertension in preterm infants, studies investigating the
Introduction: Abnormal uterine GPS bleeding is the presence of an excessive and prolonged menstrual bleeding over several consecutive cycles.It is one of the first complaints in pediatric gynecology and is the most common cause dysfunctional uterine bleeding.Objective: To characterize adolescents with menstrual disorders attending gynecology clinic