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Topic Review
Biography
Topic Review
Cybersecurity of Battery Management System
Battery management systems (BMSs) are critical to ensure the efficiency and safety of high-power battery energy storage systems (BESSs) in vehicular and stationary applications. The proliferation of battery big data and cloud computing advancements has led to the development of a new generation of BMSs, named Cloud BMS (CBMS), aiming to improve the performance and safety of BESSs. The CBMS is a cyber-physical system with connectivity between the physical BMS and a cloud-based virtual BMS, which is realized through a communication channel such as Internet of Things. Compared to the traditional BMS, the CBMS offers significantly higher computational resources, leveraging the implementation of advanced digital twin models and best-in-class algorithms in the BMS software, which will provide superior performances.
1.6K
03 Aug 2023
Topic Review
Rotor Dynamic Scattering
Rotor dynamic scattering refers to the phenomenon that a rotating rotor-like component continuously deflects incident radar waves in the observation field to generate dynamic echoes. This scattering feature has obvious dynamic characteristics and periodic characteristics. Factors such as observation angle, radar wave frequency, polarization mode, rotor disc angle and rotor carrier attitude angle are closely related. The emergence of dynamic scattering has transformed the rotor radar cross-section (RCS) problem from static solution to dynamic analysis. Studying rotor dynamic scattering has great engineering value for designing stealth rotors from the dynamic RCS level.
1.6K
30 Oct 2020
Topic Review
Acoustic Metamaterials for Architectural and Urban Noise Mitigations
Owing to a steep rise in urban population, there has been a continuous growth in construction of buildings, public or private transport like cars, motorbikes, trains, and planes at a global level. Hence, urban noise has become a major issue affecting the health and quality of human life. In the current environmental scenario, architectural acoustics has been directed towards controlling and manipulating sound waves at a desired level. Structural engineers and designers are moving towards green technologies, which may help improve the overall comfort level of residents. A variety of conventional sound absorbing materials are being used to reduce noise, but attenuation of low-frequency noise still remains a challenge. Recently, acoustic metamaterials that enable low-frequency sound manipulation, mitigation, and control have been widely used for architectural acoustics and traffic noise mitigation.
1.6K
28 Mar 2022
Topic Review
Framework of Smart Water System
Throughout the past years, governments, industries, and researchers have shown increasing interest in incorporating smart techniques, including sensor monitoring, real-time data transmitting, and real-time controlling into urban water systems. However, the design and construction of such a smart water system are still not quite standardized for practical applications due to the lack of consensus on the framework. The major challenge impeding the wide application of the smart water network is the unavailability of a systematic framework to guide real-world design and deployment. A new and comprehensive smart water framework, including definition and architecture, was proposed in this article. Two conceptual metrics (smartness and cyber wellness) were defined to evaluate the performance of smart water systems. This work calls for broader collaborations in the community of researchers, engineers, and industrial and governmental sectors to promote smart water applications for addressing the increasing water quantity and quality challenges.
1.6K
03 Feb 2022
Topic Review
Wastewater
Wastewater is any water that has been contaminated by human use. Wastewater is "used water from any combination of domestic, industrial, commercial or agricultural activities, surface runoff or stormwater, and any sewer inflow or sewer infiltration". Therefore, wastewater is a byproduct of domestic, industrial, commercial or agricultural activities. The characteristics of wastewater vary depending on the source. Types of wastewater include: domestic wastewater from households, municipal wastewater from communities (also called sewage) and industrial wastewater. Wastewater can contain physical, chemical and biological pollutants. Households may produce wastewater from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. Households that use dry toilets produce less wastewater than those that use flush toilets. Wastewater may be conveyed in a sanitary sewer that conveys only sewage. Alternatively, wastewater can be transported in a combined sewer that conveys both stormwater runoff and sewage, and possibly also industrial wastewater. After treatment at a wastewater treatment plant, treated wastewater (also called effluent) is discharged to a receiving water body. The terms "wastewater reuse" and "water reclamation" apply if the treated waste is used for another purpose. Wastewater that is discharged to the environment without suitable treatment can cause water pollution. In developing countries and in rural areas with low population densities, wastewater is often treated by various on-site sanitation systems and not conveyed in sewers. These systems include septic tanks connected to drain fields, on-site sewage systems (OSS), vermifilter systems and many more.
1.6K
19 Oct 2022
Topic Review
Determination of KISCC by The Circumferential Notch Tensile
Stress corrosion cracking (SCC) is a vexing problem for load-bearing equipment operating in a corrosive environment in various industries, such as aerospace, chemical and mineral processing, civil structures, bioimplants, energy generation etc. For safe operation, effective maintenance and life prediction of such equipment, reliable design data on SCC (such as threshold stress intensity for SCC, i.e., KISCC) are invaluable. Generating reliable KISCC data invariably requires a large number of tests. Traditional techniques can be prohibitively expensive. Circumfrential notch tensile testing is a relatively recent, much simpler and cost-effective approach to generating accurate and reliable KISCC data.
1.6K
12 Nov 2021
Topic Review
Integrated Microfluidic-Based Platforms
Integrated microfluidic platforms (IMPs) refer to diagnostic or analytic platforms that utilize, in part, a microfluidic-based system to facilitate the combination of several different steps of medical diagnoses toward full or partial automation. The integration of microfluidics in novel diagnostic technologies takes advantage of micrometric-scale fluids behaving very differently than fluids at volumes seen in our everyday lives. The two main types of currently existing microfluidic systems are continuous-flow and droplet-based systems that can both be further classified based on their respective materials and detection methods.
1.6K
24 Sep 2021
Topic Review
Sustainable development of infrastructure projects
This entry responds to the United Nations’ 2030 Sustainable Development Goals (SDG). In 2015, the international community responded to the sustainable development challenge with their report Transforming Our World: The 2030 agenda for sustainable development . The SDGs are the United Nations’ blueprint, with 193 nations signatories, to address the global challenges, such as poverty, inequality, climate change, environmental degradation, prosperity, peace and justice. The concept of sustainable development acquired its most cohesive definition in the United Nations’ 1987 Brundtland Commission report, which described it as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs” . Using the “triple bottom line” , Ochieng, Price and Moore took the definition further by placing it in the context of global construction projects and describing it as the balance of economic, social and environmental aspects. In their book, they identify a number of systemic issues, “hard and soft” in nature, that provide new challenges for global construction projects in relation to sustainable development.
1.6K
26 Oct 2020
Topic Review
Materials for Solar Cells and Supercapacitors
Hybrid systems have gained significant attention among researchers and scientists worldwide due to their ability to integrate solar cells and supercapacitors. Subsequently, this has led to rising demands for green energy, miniaturization and mini-electronic wearable devices. These hybrid devices will lead to sustainable energy becoming viable and fossil-fuel-based sources of energy gradually being replaced. A solar photovoltaic (SPV) system is an electronic device that mainly functions to convert photon energy to electrical energy using a solar power source.
1.6K
14 Mar 2022
Topic Review
Mechanical Properties of Geopolymer Concrete
Geopolymer is essentially different from the conventional concrete which consists of hydraulic cement as a binder.
1.6K
12 Sep 2021
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