Francisco Ramirez-Perez

Effects of direct injection timing associated with spark timing on a small spark ignition engine equipped with ethanol dual-injection

Publisher: Elsevier BV

Date: 03-2019

DOI: 10.1016/J.FUEL.2018.10.118

Arterial Stiffening in Western Diet-Fed Mice Is Associated with Increased Vascular Elastin, Transforming Growth Factor-β, and Plasma Neuraminidase

Publisher: Frontiers Media SA

Date: 07-07-2016

DOI: 10.3389/FPHYS.2016.00285

A review of occluded objects detection in real complex scenarios for autonomous driving

Publisher: Elsevier BV

Date: 06-2023

DOI: 10.1016/J.GEITS.2023.100092

Sexual Dimorphism in Obesity-Associated Endothelial ENaC Activity and Stiffening in Mice

Publisher: The Endocrine Society

Date: 16-10-2019

DOI: 10.1210/EN.2019-00483

Abstract: Obesity and insulin resistance stiffen the vasculature, with females appearing to be more adversely affected. As augmented arterial stiffness is an independent predictor of cardiovascular disease (CVD), the increased predisposition of women with obesity and insulin resistance to arterial stiffening may explain their heightened risk for CVD. However, the cellular mechanisms by which females are more vulnerable to arterial stiffening associated with obesity and insulin resistance remain largely unknown. In this study, we provide evidence that female mice are more susceptible to Western diet–induced endothelial cell stiffening compared with age-matched males. Mechanistically, we show that the increased stiffening of the vascular intima in Western diet–fed female mice is accompanied by enhanced epithelial sodium channel (ENaC) activity in endothelial cells (EnNaC). Our data further indicate that: (i) estrogen signaling through estrogen receptor α (ERα) increases EnNaC activity to a larger extent in females compared with males, (ii) estrogen-induced activation of EnNaC is mediated by the serum/glucocorticoid inducible kinase 1 (SGK-1), and (iii) estrogen signaling stiffens endothelial cells when nitric oxide is lacking and this stiffening effect can be reduced with amiloride, an ENaC inhibitor. In aggregate, we demonstrate a sexual dimorphism in obesity-associated endothelial stiffening, whereby females are more vulnerable than males. In females, endothelial stiffening with obesity may be attributed to estrogen signaling through the ERα–SGK-1–EnNaC axis, thus establishing a putative therapeutic target for female obesity-related vascular stiffening.

Wastewater Hydroponics for Pollutant Removal and Food Production: Principles, Progress and Future Outlook

Publisher: MDPI AG

Date: 19-07-2023

DOI: 10.3390/W15142614

Abstract: As the global population reaches eight billion, large quantities of wastewater (domestic, industrial, livestock) need to be treated in an efficient, green, and environmentally friendly manner. Wastewater hydroponics technology (HP) can efficiently remove various pollutants (conventional and emerging pollutants, heavy metals, and microorganisms) and create economic benefits. This paper aims to systematically review the principles, applications, and limitations of wastewater hydroponics technology in the context of pollution and nutrient removal. Unlike constructed wetlands, wastewater hydroponics has been proven to be effective in removing pollutants through small-scale in situ restoration. For instance, the average removal of COD, total nitrogen (TN), total phosphorus (TP), copper (Cu), and zinc (Zn) was more than 70%, 60%, 80%, 64.2%, and 49.5%, respectively. However, HP technology still has the disadvantages of high energy consumption, complex control parameters, and low public acceptance of using wastewater for planting crops. Therefore, further research is needed to reduce system energy consumption. In addition, hybrid technologies, such as two-stage hydroponics that use aquatic plants (algae or aquatic floating weeds) to recycle pollutant-containing wastewater nutrients for hydroponics, should be further developed.

Adsorption and desorption behavior of arsenite and arsenate at river sediment-water interface.

Publisher: Elsevier BV

Date: 09-2022

DOI: 10.1016/J.JENVMAN.2022.115497

Abstract: The adsorption of inorganic arsenic (As) plays an important role in the mobility and transport of As in the river environment. In this work, the adsorption and desorption of arsenite [As(III)] and arsenate [As(V)] on river sediment were conducted under different pH, initial As concentrations, river water and sediment composition to assess As adsorption behavior and mechanism. Both adsorption kinetics and equilibrium results showed higher adsorption capacity of sediment for As(V) than As(III). Adsorption of As(III) and As(V) on river sediment was favored in acidic to neutral conditions and on finer sediment particles, while sediment organic matter marginally reduced adsorption capacity. In addition, higher adsorption affinity of As(III) and As(V) in river sediment was observed in deionised water than in river water. For the release process, the desorption of both As(III) and As(V) followed nonlinear kinetic models well, showing higher amount of As(III) release from sediment than As(V). Adsorption isotherm was well described by both Langmuir and Freundlich models, demonstrating higher maximum adsorption capacity of As(V) at 298.7 mg/kg than As(III) at 263.3 mg/kg in deionised water, and higher maximum adsorption capacity of As(III) of 234.3 mg/kg than As(V) of 206.2 mg/kg in river water. The XRD showed the changes in the peaks of mineral groups of sediment whilst FTIR results revealed the changes related to surface functional groups before and after adsorption, indicating that Fe-O/Fe-OH, Si(Al)-O, hydroxyl and carboxyl functional groups were predominantly involved in As(III) and As(V) adsorption on sediment surface. XPS analysis evidenced the transformation between these As species in river sediment after adsorption, whilst SEM-EDS revealed higher amount of As(V) in river sediment than As(III) due to the lower signal of Al.

Chemical and microbiological risk assessment of urban river water quality in Vietnam

Publisher: Springer Science and Business Media LLC

Date: 07-05-2019

DOI: 10.1007/S10653-019-00302-W

Abstract: The contamination and risk by nutrients (NH

Advances in As contamination and adsorption in soil for effective management.

Publisher: Elsevier BV

Date: 10-2021

DOI: 10.1016/J.JENVMAN.2021.113274

University Of Technology Sydney

Location: Australia

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University Of Missouri

Location: United States of America

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University Of Missouri Columbia

Location: United States of America

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Universidad De Guanajuato

Location: Mexico

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Jockey Club Heavy Vehicle Emissions Testing And Research Centre

Location: China

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Huazhong University Of Science And Technology

Location: China

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University Of Technology Sydney

Location: No location found

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Discovery Early Career Researcher Award - Grant ID: DE220100552

Start Date: 10-2022

End Date: 09-2025

Amount: $428,025.00

Funder: Australian Research Council