Search results for "O2"

Metabolic and cardiopulmonary effects of detraining after a structured exercise training programme in young PCOS women

2008

Summary Objective  The aim of the present study was to determine if the favourable cardiopulmonary and metabolic benefits induced by exercise training (ET) programme are maintained after its cessation. Patients  Thirty-two young overweight polycystic ovary syndrome (PCOS) women matched for age and body mass index (BMI) with other 32 PCOS patients was enrolled. The first group [PCOS-T (trained)] underwent 24-week ET programme, whereas the second [PCOS-DT (detrained)] underwent 12-week ET programme followed by 12-week detraining period. Methods  At baseline, after 12- and 24-week follow-up, all PCOS women were studied for their hormonal (ovarian and adrenal androgens), metabolic (glucose and …

Effects Of Combined Strength And Endurance Training On Physical Performance And Biomarkers Of Healthy Young Women

2018

Kyröläinen, H, Hackney, AC, Salminen, R, Repola, J, Häkkinen, K, and Haimi, J. Effects of combined strength and endurance training on physical performance and biomarkers of healthy young women. J Strength Cond Res 32(6): 1554– 1561, 2018—Cardiovascular fitness has decreased and obesity has increased in young adults worldwide during the last 10 years. Therefore, there is an urgent need to find out optimal exercise training programs for improving physical performance and health outcomes, especially among sedentary women. Subjects were 25- to 30-year-old women with a very low physical activity, and 65% of them were overweight (body mass index . 25). They performed endurance and strength traini…

PREPARATION AND CHARACTERIZATION OF BROOKITE TiO2 PHOTOCATALYSTS FOR POLLUTANTS DEGRADATION AND ORGANIC SYNTHESIS

2012

A Solar Photothermocatalytic approach for the CO2 conversion: Investigation of different synergisms on CoO-CuO/Brookite TiO2-CeO2 catalysts

2022

Abstract The photoactive features of the least common polymorph of TiO2, i.e. brookite, were combined with the thermocatalytic redox ones of cerium oxide, focusing on the effects of the addition of small amounts of Co-Cu oxides for the solar CO2 conversion. By considering the characterization data, a surface segregation of the hosted metal oxides on the TiO2-CeO2 composite was evidenced, and their presence increased the amount of oxygen vacancies and improved the charge carriers separation. The bimetallic oxides-based sample was the most performing one in the photocatalytic carbon dioxide reduction at room temperature. The formation of carbon monoxide and methane was 5 and 0.5 μmol g−1h−1, …

Demand side management and Distributed on Site actions benefits

2013

Global warming and energy demand are nowadays becoming one of the major issues of the third millennium, mainly because human activities seem to have a clear impact on the raise of CO2 emissions as never it has been experienced in the past. Among the different factors affecting CO2 emissions, energy demand from buildings constitutes one of the most important actors. Energy Management (EM) actions can reduce the energy consumption of the system and minimize peaks-level, by using a distributed control over every house. These local actions can greatly contribute to reduce the impact on the global CO2 emissions. An evaluation of the potential energy saving and CO2 emissions reduction on building…

C3N4 for CO2 photoreduction: catalyst performance and stability in batch and continuous reactor

2019

In this study, various C3N4 samples were prepared and characterized. CO2 photoreduction was carried out by using C3N4 as powder and coated on glass support in a batch reactor or embedded in a Nafion membrane in a continuous reactor

Graphitic C3N4 for CO2 reduction: a photoactivity and stability study

VOLCANIC CO2 FLUX MEASUREMENTS BY TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY

2013

Introduction In the last decades, the use of near-infrared room-temperature diode lasers for gas sensing has grown significantly. The use of these devices, for instance in combination with optical fibers, is particularly convenient for volcanic monitoring applications [1,2]. Here, we report on the first results of the application of an open-path infrared tunable laser-based at Campi Flegrei (Southern Italy). Such Diode-laser-based measurements were performed, during two field campaigns (october 2012, and january 2013), in the attempt to obtain novel information on the current degassing unrest of Solfatara and Pisciarelli fumarolic fields. Results and Discussion At each site, we used an ad-h…

Impact of Novel Energy Management Actions on Household Appliances for Money Savings and CO2 Emissions Reduction

2009

In order to obtain CO2 emissions reductions, energy management control actions inside apartments and detached houses have to be carried out. In this work, new control actions devoted to the reduction of electrical energy consumptions inside typical Italian apartments are proposed. These “Distributed on Site” (DoS) actions consist in employing specific control strategies to smartly exploit the hot water provided by a solar panel, the electricity generated by a photovoltaic panel and the delayed starting of appliances.

SPĒĒK kompozītmembrānu īpašību pētījumi pielietojumam CO2 elektroķīmiskajos pārveidotājos

2019

Šajā darbā ir veikta sulfonēta poli(ēter ēter ketona) (SPĒĒK) sintēze ar sulfonēšanas pakāpēm 0,87; 0,82; 0,74. No iegūtā SPĒĒK tika izgatavotas kompozītmembrānas ar atšķirīgu aktīvās ogles saturu: 0; 0,15; 0,3; 0,5; 0,6; 0,8; 1,0; 2,0; 3,0 %. Iegūto membrānu īpašības tika izpētītas ar dažādām metodēm. Kompozītmembrānām tika noteikta ūdens uzņemšana un uzbriešanas pakāpe. Impedances analīzi veica ar diferenciālo un vienas membrānas metodi. Tika pētītas arī virsmas dzeta potenciāla izmaiņas. Kompozītmembrānu termiskās īpašības analizēja ar termogravimetrisko metodi. Membrānu virsmas morfoloģiju pētīja ar skenējošās elektronu mikroskopijas metodi. SPĒĒK membrāna tika notestētas CO2 elektroķīm…