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Topic Review
Sensible and Latent Heat Thermal Energy Storage
Sharing renewable energies, reducing energy consumption and optimizing energy management in an attempt to limit environmental problems (air pollution, global warming, acid rain, etc.) has today become a genuine concern of scientific engineering research. Furthermore, with the drastic growth of requirements in building and industrial worldwide sectors, the need for proper techniques that allow enhancement in the thermal performance of systems is increasingly being addressed. It is worth noting that using sensible and latent heat storage materials (SHSMs and phase change materials (PCMs)) for thermal energy storage mechanisms can meet requirements such as thermal comfort in buildings when selected correctly.
  • 12.8K
  • 29 Jul 2022
Topic Review
Semi-Aerobic Landfill by Life Cycle Assessment Modeling
The potential impacts and the environmental performance of the semi-aerobic landfill technology were assessed through the Life Cycle Assessment (LCA) methodology. Project data that referred to a hypothetical Italian plant design were used and ISO 14040/14044 standards were applied. All the life cycle phases were considered, from landfill construction to filling, aftercare, closure and conversion for future use. All the landfill processes and the inflow of materials, energy and rainwater, and the outflow of biogas and leachate, were included in the system boundaries.
  • 361
  • 14 Sep 2022
Topic Review
Selenium Nanoparticles (SeNPs)
Elemental selenium (Se0) is naturally insoluble, displays a lower toxicological potential and can form selenium nanoparticles (SeNPs).
  • 1.1K
  • 25 Feb 2022
Topic Review
Sea Ice Motion Tracking Based on Satellite Videos
Sea ice tracking is essential for many regional and local level applications, including modeling sea ice distribution, ocean atmosphere, climate dynamics, as well as safe navigation and sea operations. Most operational sea ice monitoring techniques rely on satellite-borne optical and synthetic aperture radar (SAR) sensors, augmented by scatterometer and passive microwave imagery. Herein, previous ice tracking works are studied and classified into two categories: traditional tracking methods and DL-based tracking. Specifically, traditional ice tracking methods can be broadened to include cross correlation-based, optical flow-based and so on.
  • 436
  • 26 Aug 2022
Topic Review
Salts Hydrates and Composites
Salt hydrates are alloys of salts and water. Salt hydrates display high theoretical energy densities, which are promising materials in thermal energy storage (TES).
  • 939
  • 25 Jan 2022
Topic Review
Road Safety Near a Landfill Assessment in Europe
In Europe, many governments are struggling with the ambitious target of zero road deaths by 2050. On the other hand, they are facing remediation of illegal waste dumps, subject to European infringement procedures and involving a lot of workers and heavy materials transportation. In Italy, a specific department was started in 2017 to carry out the remediation of 200 illegal landfills of urban/industrial solid waste. According to the Italian legislative framework on construction site management, risk assessment should also include risks for the external context caused by the working site.
  • 397
  • 26 May 2023
Topic Review
Rice Industry By-Products for Removing Fluoride/Arsenic from Water
In drinking water, high concentrations of fluoride and arsenic can have adverse effects on human health. Waste deriving from the rice industry (rice husk, rice straw, rice bran) can be promising adsorbent materials, because they are (i) produced in large quantities in many parts of the world, (ii) recoverable in a circular economy perspective, (iii) at low cost if compared to expensive conventional activated carbon, and (iv) easily manageable even in developing countries. For the removal of fluoride, rice husk and rice straw allowed to obtain adsorption capacities in the range of 7.9–15.2 mg/g. Using rice husk for arsenic adsorption, excellent results were achieved with adsorption capacities above 19 mg/g. The best results both for fluorides and arsenic (>50 mg/g) were found with metal- or chemical-modified rice straw and rice husk.
  • 521
  • 31 Mar 2022
Topic Review
Reuse of Municipal Solid Waste in Construction
Society is highly dependent on natural resources such as rocks (aggregates) and minerals. Although they are an abundant resource on the planet, their recovery is slow in terms of human lifespan, and from this fact, they are considered non-renewable resources. The construction industry currently consumes around 3000 million tons of natural resources annually and is responsible for 34% of greenhouse gas emissions into the atmosphere. An alternative to reduce this over-extraction is the substitution of aggregates and cement for municipal solid waste (MSW), which represents the application of the circular economy principles. This approach and the waste management hierarchy are described, with a focus on the Latin America and the Caribbean situation. MSW is composed of several fractions, such as organic waste, paper, cardboard, metals, plastic, and glass, among other valuable materials. Areas of opportunity for their reuse in the construction industry have been demonstrated worldwide: a) plastics as substitutes for aggregates or reinforcing fibers, or replaced construction elements such as bricks; b) glass in the production of concrete, mortar, and asphalt pavement; c) paper as a hygrothermal and lighting regulator in buildings, among others.  
  • 1.0K
  • 20 Dec 2022
Topic Review
Retrofitting and Strengthening of Structures
In civil engineering since antiquity, structural repair has been a very particular problem. Throughout history, human-constructed buildings have been destroyed due to time, natural disasters, and even building mistakes. In this respect, the field of engineering related to structural reconstruction and recovery seeks to identify methods and techniques to accomplish this important task. The pace of the degradation of concrete buildings throughout the world is frightening. It has now been verified that even if the structural design complies with all particular building code criteria such as concrete quality, cover, and so on, there is still an acceptable high risk of concrete degradation and reinforcing corrosion. Steel corrosion has been identified as the most severe cause of reinforced concrete degradation, capable of causing fractures, spalling the concrete cover, reducing the effective c/s area of the reinforcement, and ultimately leading to collapse. In order to repair and rehabilitate other buildings, this study sought to compile the main ideas, methods, and technologies used by these influential engineers. In fact, this report contains case studies on functional restoration. The document further addresses various types of building, such as pre-stressing, post-tensioning, deployment, and pre-stressing.
  • 2.6K
  • 24 Dec 2022
Topic Review
Responsive Architecture
Responsive architecture is a type of architecture, an artificial entity, that reacts to data and information collected by a variety of types of sensors. It is also defined as an interactive and collective platform where diverse computing or operating systems are executed, leading to architectural behaviors like changing forms or services.
  • 5.3K
  • 20 May 2021
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