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Topic Review
Piezo-Photocatalysis
Piezocatalysis is a technique that relies on the conversion of mechanical energy to trigger chemical reactions that can be utilized to catalyze the degradation of pollutants in water. By combining piezoelectric materials with photocatalytic materials, the built-in electric field generated by the piezoelectric effect promotes the separation and migration of photogenerated carriers, thereby enhancing the efficiency, selectivity, and stability of photocatalytic reactions.
  • 32
  • 29 Sep 2023
Topic Review
Impact of Micro- and Nanoplastics on Aquatic Organisms
Anthropogenic activities on the aquatic ecosystem have direct and indirect effects that negatively affect biodiversity both in freshwater and sea. Among the main threats to aquatic ecosystems and biodiversity is climate change. Climate change can impact marine and freshwater ecosystems in several ways: ocean warming; sea level rise; the loss of sea ice; a decrease in pH due to increased ocean surface acidity; an increased risk of diseases in marine biota; the loss of habitats such as Coral Reef; pollution; nutrient enrichment; hydrological modifications; the spread of invasive species; and increasing levels of UV light. The production of plastic and its release into the environment is contributing to the loss of biodiversity and is becoming a serious threat to animal redox homeostasis and, subsequently, for human health.
  • 10
  • 28 Sep 2023
Topic Review
Semi-Supervised Learning for Forest Cover Mapping
Forest cover mapping is of paramount importance for environmental monitoring, biodiversity assessment, and forest resource management. In the realm of forest cover mapping, significant advancements have been made by leveraging fully supervised semantic segmentation models. However, the process of acquiring a substantial quantity of pixel-level labelled data is prone to time-consuming and labour-intensive procedures. 
  • 11
  • 28 Sep 2023
Topic Review
Short-Term Forecasting of Electric Vehicle Load
Electric vehicles (EVs) are inducing revolutionary developments to the transportation and power sectors. Their innumerable benefits are forcing nations to adopt this sustainable mode of transport. Governments are framing and implementing various green energy policies. Nonetheless, there exist several critical challenges and concerns to be resolved in order to reap the complete benefits of E-mobility. The impacts of unplanned EV charging are a major concern. 
  • 17
  • 27 Sep 2023
Topic Review
Mapping and Monitoring Informal Settlements Using RS Technologies
Research on the detection of informal settlements has increased since 1990s owing to the availability of high- to very-high-spatial-resolution satellite imagery. The achievement of development goals, such as the Sustainable Development Goals, requires access to up-to-date information on informal settlements.
  • 10
  • 27 Sep 2023
Topic Review
Specific Sensors in Downwind Fire and Smoke Detection
Wildfires have played an increasing role in wreaking havoc on communities, livelihoods, and ecosystems globally, often starting in remote regions and rapidly spreading into inhabited areas where they become difficult to suppress due to their size and unpredictability. In sparsely populated remote regions where freshly ignited fires can propagate unimpeded, the need for distributed fire detection capabilities has become increasingly urgent.
  • 22
  • 27 Sep 2023
Topic Review
Biodiesel Production from Fish Waste
Biofuels including biodiesel, bioethanol, biobutanol, biohydrogen, etc., are generated from different biological sources, and their waste which stands as the best alternative in the present scenario. Specifically, the utilization of biological wastes as raw materials for the production of biofuels is considered as best waste management practice. To date, most of the biodiesel production research has been carried out with plant, algal, and microbial samples, or their waste. It is a well-known fact that diesel can also be produced from specific oily fish and their waste using different methods. In addition, fish waste constitutes a major quantity compared to other food waste which is a serious concern. Furthermore, the disposal of fish waste shows an impact on both the environment and the economy. Hence, the development of protocols for the efficient production of biodiesel from fish waste is the ultimate goal. 
  • 18
  • 26 Sep 2023
Topic Review
The Drivers and Barriers of Green Ports
Ports play an increasingly significant role in fostering regional economic growth and international trade as a key hub of the transportation network. Ports now provide cities, regions, and nations with a vital strategic resource for taking part in global economic cooperation and competitiveness, in addition to providing space for transportation, logistics, and a way to connect with the outside world. Green ports are presented as an achievable solution to the energy issue and environmental degradation. A green port is a port that not only satisfies environmental criteria but also provides economic benefits. Green ports are an excellent strategy to reduce environmental pollution and ecological harm, as well as to maintain the ports’ water resources and natural environment.
  • 22
  • 26 Sep 2023
Topic Review
Socio-Psychological Factors on Residents’ Willingness of Waste Handling
There was a statistically significant difference between low and high levels of awareness and perceived behavior control in Dammam City households’ willingness to sort waste and recycle; however, at the middle level, there was only a significant difference in perceived behavior control. Moreover, there was a statistically significant difference between high and middle levels in government facilitators regarding sorting and recycling willingness in Dammam City.
  • 23
  • 26 Sep 2023
Topic Review
Higher Education Institutes on Community-Level Climate Action Plans
To drive a radical change toward a zero-carbon transition at the city scale, massive decarbonization is required at the institutional level (academic/non-academic campus) of a city. Among all the nongovernmental actors, it is always expected that Higher Education Institutes (HEIs) would take the lead in promoting a resilient and sustainable future for the cities through their education, research, and innovation. HEIs’ multidimensional activity resembles the “small scale model of a city” interacting with different subsystems like education, administration, transport, housing, health, etc. 
  • 21
  • 26 Sep 2023
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