Two-Dimensional InSb/GaAs- and InSb/InP-based Tandem Photovoltaic Device with Matched Bandgap

The past several years have witnessed remarkable research efforts to develop high-performance photovoltaics (PVs), to curtail energy crisis by avoiding dependence on traditional fossil fuels. In this regard, it is...

An Unprecedented Polyoxometalate-Encapsulated Organo-Metallophosphate Framework as Highly Efficient Cocatalyst for CO2 Photoreduction

The photocatalytic reduction of CO2 to chemical fuels is attractive for addressing both greenhouse effect and energy crisis, but the key challenge is the design and synthesis of photocatalyst with...

A S-scheme heterojunction constructed by α-Fe2O3 and In-doped carbon nitride for high-efficiency CO2 photoreduction

The conversion of CO2 to chemicals and fuels by photocatalysis provides a promising strategy to solve both energy crisis and environmental impacts, for which the development of high-activity photocatalysts is...

Electric Vehicles in Smart Grids

Electric vehicles were proposed as a good solution to solving energy crisis and environmental problems caused by the traditional internal combustion engine vehicles. In the last years due to the rapid development of the electric vehicles, the problem of power grid integration was addressed. In order to not put additional pressure onto the power grid several new technologies were developed. This chapter presents the smart grid technology, vehicle-to-grid concept, and electric vehicles grid integration. These technologies made possible the integration of electric vehicles without any major changes in the power grid. Moreover, electric vehicles integration brought new benefits to the power grid like better integration of renewable energy.

The Businesses and the Innovations of Adolf Engel in the Second Half of the 19th Century

The purpose of the study. The study is about the businesses of Adolf Engel, a local entrepreneur of Pécs in the 19th century. The study is focused on finding answers to three main questions. Firstly, in what ways did Adolf Engel’s career differ from other great entrepreneurs of Pécs, such as Zsolnay, Angster or Hamerli? Secondly, how big was Engel’s impact on the local economy and how did he tackle the charcoal crisis by establishing industrial coal mining in Komló? Finally, what kind of innovations did he use and what were their effects? Applied methods. The research is based upon a wide range of sources. A great volume of domestic and international literature and the memoirs of Adolf Engel provided the background of the study. I used statistics of the era and I read numerous articles found in the Arcanum Digitheca and Hungarian Cultural Heritage Portal databases. Furthermore, I revealed and analysed archival sources of the Regional Archives of Baranya County of the National Archives of Hungary. I composed the study in chronological order and have summed up Engel’s work. Outcomes. By the end of the study, I was able to reflect on the differences of Adolf Engel’s entrepreneurial career. He managed multiple businesses in different sectors at the same time. He successfully participated in the development of the local economy and took part in solving the energy crisis. He applied several unusual innovations, but their outcome was undoubtedly positive and successful. Engels’s efforts are clearly telling of the career of a self-made businessman.

Morphology and Element Doping Effect: Phosphorus-Doped Hollow Polygonal g-C3N4 Rods for Visible Light-Driven CO2 Reduction

Photocatalytic CO2 reduction to valuable chemicals, especially the fuels is considered as a promising strategy to mitigate CO2 accumulation and to tackle energy crisis, among which photocatalysis is vital to...

Harvesting Thermal Energy via Tube-based Triboelectric Nanogenerators within an Oscillating Heat Pipe

Developing energy harvesting and conversion technology is of great significance to mitigate the energy crisis and realize the sustainable development of human society. In this work, we designed and fabricated...

Egypt’s energy diplomacy strengthens position abroad

Significance Beirut and its Western backers have turned to Cairo for assistance in mitigating Lebanon’s energy crisis. President Abdel Fattah el Sisi seeks to leverage Egypt’s strategic location, infrastructure and natural gas reserves for political and financial gain amid global gas shortages and soaring prices. Impacts Egypt aims to use gas as a way to show its importance but faces supply constraints. The EU and the United States reluctantly accept the Egyptian government as a better ally than the available alternatives. Egypt becoming an energy hub could play a small, but significant, role in helping Europe to reduce its chronic dependence on Russian gas.

Energy and Environmental Benefit of Solar Charging System for Charging Auto-Rickshaw in Developing Countries

The energy crisis and environmental impact are the major concern mf the present world. Three-wheeler auto-rickshaw becoming an important passenger transport vehicle in a developing country which are indirectly powered by the grid electricity through the batteries. Such vehicle consumes significant grid energy during charging which increases the load in the national grid and put extra stress on the electrification in line with the environmental impact. This paper investigated the existing facilities for charging auto-rickshaw in Bangladesh and designed a proposed solar charging model as a replacement based on the existing model. Then the energy and environmental benefit were estimated to reflect the significance of the proposed model and contribution in the context of the global energy crisis and environmental impact. The investigation found that the daily energy consumption is 290 kWh for a charging station capacity of 30 auto-rickshaws which is significant. The proposed solar model is designed to meet this demand offset. The environmental analysis showed that the proposed model can offset CO2, CH4, and NOx emissions by 54 tCO2eq, 40 kgCO2eq, and 60 kgCO2eq per year respectively of which the contribution of CO2­ is significant. Further research could be focused on the economic and financial analysis in-depth to promote the proposed model.

Ketone Supplementation: Meeting the Needs of the Brain in an Energy Crisis

Diverse neurological disorders are associated with a deficit in brain energy metabolism, often characterized by acute or chronic glucose hypometabolism. Ketones serve as the brain's only significant alternative fuel and can even become the primary fuel in conditions of limited glucose availability. Thus, dietary supplementation with exogenous ketones represents a promising novel therapeutic strategy to help meet the energetic needs of the brain in an energy crisis. Preliminary evidence suggests ketosis induced by exogenous ketones may attenuate damage or improve cognitive and motor performance in neurological conditions such as seizure disorders, mild cognitive impairment, Alzheimer's disease, and neurotrauma.