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This work examines a high temperature latent heat storage system, which could find use in future concentrated solar power and other combined heat and power plants. In contrast to lab-based fully charged or totally discharged states, partial load states will be the principal operation states in real-world applications. Hence, a closer look on the partial load states and the effective power rates are worthwhile for a successful implementation of this storage type. A vertical finned shell and tube heat exchanger pipe with a combination of transversal and longitudinal fins is applied. Sodium nitrate with a melting temperature of 306 ° C is used as phase change material and thermal oil serves as heat transfer fluid. Temperatures in the storage and the heat transfer fluid as well as the mass flow are measured for data analysis. The state of charge formulation is based on an enthalpy distribution function, where the latent heat of fusion is spread over a specific temperature range. The data show consistently high power rates for all partial load cycles at any state of charge. The mean power rate for charging is 6.78 kW with an 95.45 % confidence interval of ± 1.14 kW for all cycles. The discharging power rate is -5.72 kW with a 95.45 % confidence interval of ± 1.36 kW for all cycles. The lowest power rate is measured for the full cycle at the end of charging/discharging. It is caused by a narrow volume, which is not penetrated by fins, near the perimeter of the cylindrical heat exchanger. The state of charge formulation correlates with the storage capacity and enables state of charge based cycling. With the energy balance of the storage, the data validity is proven and further storage parameters are determined. The energy density is as high as 110 kW h m-3 and a power rate of 2.28 kW m-1 for the finned tube is confirmed. These values are highly promising for further development and application of latent heat storage systems.In a globalized world, pandemics transmit impacts through markets. We document employment changes, coping strategies, and welfare of garment factory workers in Ethiopia's largest industrial park during the early stages of the Coronavirus Disease 2019 pandemic. We field a phone survey of female workers during a two month period in which cases are rapidly rising globally, but not locally. Our data suggest significant changes in employment, high levels of migration away from urban areas to rural areas if women are no longer working, and high levels of food insecurity. These findings compel a research and policy focus on documenting and mitigating the market-reach of pandemics on low-income workers at the margins.Risky health behaviors contribute to a large share of disease in developing countries, yet few papers have studied the effect of conflict on these behaviors. The canonical health capital model predicts that conflict should increase risky health behaviors as the likelihood of survival falls, incentives to invest in preventive measures also fall, increasing risk-taking. However, recent findings from various violent contexts, including the drug war in Mexico, suggest the behavioral response to conflict may reduce risk-taking. In this paper, I identify the effect of insecurity on sexual risk-taking using unique panel data on female sex workers in Ciudad Juarez, Mexico. I show that more intense conflict generates a large reduction in risky sex transactions. I rule out several alternate explanations, including compositional changes in sex markets and changes in drug use. The results suggest that the behavioral response to insecurity can mitigate the negative effects of conflict on health.Previous studies on the work-family relationship have analyzed the influence of work-family conflict and work-family enrichment on an individuals' lives, namely on their well-being and health. Besides, attempts have been made to analyze the influence of other aspects of the labor context on this relationship, such as job insecurity. However, few have analyzed this relationship and interaction from a longitudinal perspective. https://www.selleckchem.com/products/idasanutlin-rg-7388.html Thus, the main purpose of this study is to analyze the moderating role of job insecurity in the work-family relationship and the perceived health of 373 workers of a Portuguese bank, across time. The results showed a negative influence of work-family conflict on perceived health 5 years after. Also, job insecurity was found to offset the relationship between work-family enrichment and perceived health, acting as a buffer. This research allows for a better understanding of how job insecurity, a characteristic of modern-day employment, can impact workers' quality of life. This paper also refers to some practical implications, in addition to the limitations of the study, and presents suggestions for future research in this context.Electricity demand and its typical load pattern are usually affected by many endogenous and exogenous factors to which the generation system must accordingly respond through utility operators. Lockdown measures to prevent the spread of COVID-19 imposed by many countries have led to sudden changes in socioeconomic habits which have had direct effects on the electricity systems. Therefore, a detailed analysis of how confinement measures have modified the electricity consumption in Spain, one of the countries most affected by this pandemic, has been performed in this work. Its electricity consumption has decreased by 13.49% from March 14 to April 30, compared to the average value of five previous years. Daily power demand profiles, especially morning and evening peaks, have been modified at homes, hospitals, and in the total power demand. These changes generate a greater uncertainty for the System Operator when making demand forecasts, but production deviations have increased by only 0.1%, thanks to the presence of a diversified generation mix, which has been modified during this period, increasing the proportion of renewable sources and decreasing CO2 emissions.

The COVID-19 outbreak has had an unclear impact on the treatment and outcomes of patients with ST-segment elevation myocardial infarction (STEMI). The aim of this study was to assess changes in STEMI management during the COVID-19 outbreak.

Using a multicenter, nationwide, retrospective, observational registry of consecutive patients who were managed in 75 specific STEMI care centers in Spain, we compared patient and procedural characteristics and in-hospital outcomes in 2 different cohorts with 30-day follow-up according to whether the patients had been treated before or after COVID-19.

Suspected STEMI patients treated in STEMI networks decreased by 27.6% and patients with confirmed STEMI fell from 1305 to 1009 (22.7%). There were no differences in reperfusion strategy (> 94% treated with primary percutaneous coronary intervention in both cohorts). Patients treated with primary percutaneous coronary intervention during the COVID-19 outbreak had a longer ischemic time (233 [150-375] vs 200 [140-332] minutes,

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