A SELECTIVE SEPARATION MECHANISM FOR MONO/DIVALENT CATIONS AND PROPERTIES OF A HOLLOW-FIBER COMPOSITE NANOFILTRATION MEMBRANE HAVING A POSITIVELY CHARGED SURFACE

Positively charged nanofiltration (NF) technology is considered a green and low-cost method for mono/divalent cation separation.Nevertheless, the separation rejection mechanisms of these NF membranes have yet to be extensively investigated.In this work, we fabricated a thin-film composite (TFC) hollow-fiber (HF) NF membrane with a positively charge

Abstract Background Retrocaval ureter was diagnosed in a woman complaining of ureteric pain in the last trimester of pregnancy.We describe the rationale behind the administration of epidural analgesia for her colic attack.Case presentation A 41-year-old pregnant woman was hospitalized with skull bride and groom a diagnosis of a marginal placenta pr

Abstract Background Epidemiologic estimates are now available for a variety of parameters related to major depression epidemiology (incidence, prevalence, etc.).These estimates are potentially useful for policy and planning purposes, but it is first necessary that they be synthesized into a coherent picture of the epidemiology of the condition.Seve

In this paper, we propose the implementation of a safety device that generates an alarm sound or braking operation to reduce the risk of accidents.It reduces itsmajorlook.com the exposure of risks due to non-wearing by supplementing the function of the helmet for safety.For machine learning, the safety state is learned by using two types of sensing