scholarly journals Emerging Floating Photovoltaic System—Case Studies High Dam and Aswan Reservoir in Egypt

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1005
Author(s):  
Nagananthini Ravichandran ◽  
Hady H. Fayek ◽  
Eugen Rusu

The world has a target of achieving 100% renewable energy by the end of the century. This paper presents a case study to establish a new floating photovoltaic park (FPV) in Egyptian dams. In Egypt, two hydroelectric dams, namely High Dam and Aswan Reservoir, together produce 2.65 GW in the Upper-Egypt region. The addition of 5 MW FPV for each dam is simulated using the Helioscope software application. A comparison between the performance of the dams with and without adding the FPV is presented in terms of the evaporation rate and total produced energy. A comparison between different types of FPV, namely polycrystalline, thin film and mono-crystalline in the two dams are also presented. The results show that installing FPV in the Egyptian dams will drive the dams to better performance in terms of carbon dioxide reduction, water-saving from reducing evaporation and increasing hydropower generation.

The effective altruism movement consists of a growing global community of people who organize significant parts of their lives around two key ideas, represented in its name. Altruism: If we use a significant portion of the resources in our possession—whether money, time, or talents—with a view to helping others, we can improve the world considerably. Effectiveness: When we do put such resources to altruistic use, it is crucial to focus on how much good this or that intervention is reasonably expected to do per unit of resource expended (for example, per dollar donated). While global poverty is a widely used case study in introducing and motivating effective altruism, if the ultimate aim is to do the most good one can with the resources expended, it is far from obvious that global poverty alleviation is highest priority cause area. In addition to ranking possible poverty-alleviation interventions against one another, we can also try to rank interventions aimed at very different types of outcome against one another. This includes, for example, interventions focusing on animal welfare or future generations. The scale and organization of the effective altruism movement encourage careful dialogue on questions that have perhaps long been there, throwing them into new and sharper relief, and giving rise to previously unnoticed questions. In the present volume, the first of its kind, a group of internationally recognized philosophers, economists, and political theorists contribute in-depth explorations of issues that arise once one takes seriously the twin ideas of altruistic commitment and effectiveness.


Author(s):  
Olivier Benyessaad ◽  
Diane Ruf

The development of the Liquefied Natural Gas (LNG) offshore industry is viewed as a major improvement in the exploitation of the world’s energy resources. Most energy analysts agree that significant increases in Natural Gas (NG) demand is expected in the next decades due to relatively low prices and an important gas quantity worldwide. In order to develop the use of this resource, many innovative offshore floating installations have been developed and are currently deployed all over the world. However, hazards linked to LNG and due to hydrocarbon releases are not always so well understood or controlled. Thus, in order to quantify and understand these risks associated to LNG treatment or containment as well as their consequences, a number of different types of risk and reliability engineering techniques can be used at different stages of the project. The following will present specific analyses that have been performed on innovative LNG Offshore floating units to provide a qualitative and quantitative hazard assessment by predicting the consequences and the frequencies of these hazards, while improving the reliability of the installation and its availability. The paper will first introduce the LNG offshore industry outlining the different installations possibilities and the associated hazards. Then, based on recent projects, it will detail the risk-based methodology applied to ensure the safety and the profitability of such innovative installations when no rules are able to frame fully the development of these projects. Finally, after having pointed out the ins and outs of risk studies, a case study using most of the methods presented previously will be developed.


A contemporary overview of festival activity from around the world based on over 30 case studies drawn from every continent. Through its case-study focus it examines different types and genres of festival across the world; considers in detail specific festivals in specific contexts; looks at management and organisational issues in festival provision, and illustrates debates and theories pertaining to festivals throughout the world.


Energies ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 3237 ◽  
Author(s):  
Francesco Nocera ◽  
Rosa Caponetto ◽  
Giada Giuffrida ◽  
Maurizio Detommaso

Sicily is characterized by rural buildings, Palmenti, destined to wine production, which are scattered along the countryside and part of the local historical heritage. There are different types of rural buildings, but all have in common the use of ancient and well-established bioclimatic techniques for wine conservation and aging. Most of them were built with the double function of living space for the owner and productive spaces for all the activities correlated to the cultivations. Indeed, many rural houses, destined to the wine production, are characterized by wineries and wine cellars (the first for the wine production, the second to store the wine for the aging process). The growing production of high-quality Sicilian wines, very appreciated all over the world, leads to upgrade the ancient Palmenti to seek optimal hygrothermal conditions and, therefore, to guarantee high performance of the produced and stored wines. The purpose of this study is to investigate how the retrofit measures taken to comply with the energy regulations could affect the thermal behavior of a wine cellar constructed with consolidated bioclimatic technics. The results show the importance of not insulating the solid ground floor for maintaining suitable temperatures for the fermentation and aging of wine. This study can be useful for future analysis when comparing the optimal hygrothermal conditions of wine cellars located in homogeneous viticultural areas (with same climate, geology, soil, physical features, and height) in other parts of the world.


2022 ◽  
Vol 10 (1) ◽  
pp. 150
Author(s):  
Rafael Jiménez-Mejía ◽  
Ricardo I. Medina-Estrada ◽  
Santos Carballar-Hernández ◽  
Ma. del Carmen Orozco-Mosqueda ◽  
Gustavo Santoyo ◽  
...  

Plants and their microbiomes, including plant growth-promoting bacteria (PGPB), can work as a team to reduce the adverse effects of different types of stress, including drought, heat, cold, and heavy metals stresses, as well as salinity in soils. These abiotic stresses are reviewed here, with an emphasis on salinity and its negative consequences on crops, due to their wide presence in cultivable soils around the world. Likewise, the factors that stimulate the salinity of soils and their impact on microbial diversity and plant physiology were also analyzed. In addition, the saline soils that exist in Mexico were analyzed as a case study. We also made some proposals for a more extensive use of bacterial bioinoculants in agriculture, particularly in developing countries. Finally, PGPB are highly relevant and extremely helpful in counteracting the toxic effects of soil salinity and improving crop growth and production; therefore, their use should be intensively promoted.


Author(s):  
Christian Dalsgaard ◽  
Klaus Thestrup

The objective of the paper is to provide a framework for understanding the pedagogical opportunities of openness in education. The paper will argue that openness in education should not only be viewed as opening existing resources and courses to a broader audience. Openness is also a matter of providing insight and enable communication and collaboration across traditional barriers – such as distance and accessibility. From this perspective, openness is the removal of barriers for interaction and exchange – and not only a matter of providing access to resources or courses. Rather, the objective is to open education to the outside world, which entails an interaction between educational institutions and society. The key point of the paper is that to do this, educational activities need to change and move beyond the course as the main unit of openness. Openness is not only a matter of opening up the existing, but to develop new educational practices that interact with the world. The paper outlines three different dimensions of openness that describe different types of interaction between institutions and society: transparency, communication and engagement. To exemplify the dimensions, the paper presents a case study that demonstrates the three dimensions of openness in an university programme. The paper concludes in a discussion of educational technologies for the different dimensions of openness.


2019 ◽  
Vol 81 ◽  
pp. 165-173
Author(s):  
Katarzyna Turoń

Different types of transport solutions that are to influence the sustainability of urban logistics are increasingly used around the world. The same applies to the opportunities offered by the implementation of shared mobility services. According to this idea, car-sharing systems are currently present on six continents of the world and it is anticipated that by 2025 there will be over 36 million users worldwide sharing car-sharing services. In line with this trend, it is worth paying attention to aspects that will encourage the public to use car-sharing services. Because the price is one of the main factors for the society during making a decision about using car-sharing services, the author decided to analyze the costs of car-sharing mobility. In the text basic assumptions about car-sharing services and their development were presented. Then, the article showed the analysis of the cost of using services on six continents in the line of temporary and parking fees. In addition, the work also refers to the impact of the type of vehicle fleet on the price level. The aim of the work was to assess the occurrence of differences between the services offered and the relation between costs and the assumptions of sustainable transport development.


2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.


Author(s):  
Pramukti Dian Setianingrum ◽  
Farah Irmania Tsani

Backgroud: The World Health Organization (WHO) explained that the number of Hyperemesis Gravidarum cases reached 12.5% of the total number of pregnancies in the world and the results of the Demographic Survey conducted in 2007, stated that 26% of women with live births experienced complications. The results of the observations conducted at the Midwife Supriyati Clinic found that pregnant women with hyperemesis gravidarum, with a comparison of 10 pregnant women who examined their contents there were about 4 pregnant women who complained of excessive nausea and vomiting. Objective: to determine the hyperemesis Gravidarum of pregnant mother in clinic. Methods: This study used Qualitative research methods by using a case study approach (Case Study.) Result: The description of excessive nausea of vomiting in women with Hipermemsis Gravidarum is continuous nausea and vomiting more than 10 times in one day, no appetite or vomiting when fed, the body feels weak, blood pressure decreases until the body weight decreases and interferes with daily activities days The factors that influence the occurrence of Hyperemesis Gravidarum are Hormonal, Diet, Unwanted Pregnancy, and psychology, primigravida does not affect the occurrence of Hyperemesis Gravidarum. Conclusion: Mothers who experience Hyperemesis Gravidarum feel nausea vomiting continuously more than 10 times in one day, no appetite or vomiting when fed, the body feels weak, blood pressure decreases until the weight decreases and interferes with daily activities, it is because there are several factors, namely, hormonal actors, diet, unwanted pregnancy, and psychology.


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