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Topic Review
Biography
Topic Review
Model-Based Enterprise Approach in the Product Lifecycle Management
Innovations in product development and process technologies represent a promising strategy to face the increasing competitiveness of modern markets in the global economy. Also, customer requirements become more and more specific and the complexity of products is still increasing. Industries need to adopt effective solutions during the product development process and to support, for sustainable purposes, all the phases of the product lifecycle. Advanced model-based solutions emerge for digitally supporting these industrial needs. In this context, a Model-Based Enterprise (MBE) represents an organization that adopts modeling technologies, such as Model-Based Definition (MBD) solutions, to integrate and manage both technical and business processes related to product design, production, support, and retirement. Past research discusses the model-based approaches focusing on technical product development, mainly referring to the design and the manufacturing phases.
1.3K
08 Feb 2022
Topic Review
A Product/Service System
Product/service system (PSS) is widely considered as a promising design object with the potential to enhance environmental sustainability of industrial solutions. The state of the art of PSS design research includes several prescriptive PSS design support tools, methods and procedures. This body of literature has been extensively reviewed in the past. However, there is a lack of consolidation of the available prescriptive knowledge in a condensed and practically useful format that can be used by practitioners to guide their conceptual PSS design activities and by researchers to build their work on. Thus, to address this gap in our knowledge, we use an intra-disciplinary literature analysis and meta-synthesis approach to consolidate the extant prescriptive PSS design knowledge in the form of a schema for conceptual PSS design.
1.3K
29 Oct 2020
Topic Review
Peer Reviewed
From Bioinspiration to Biomimicry in Architecture: Opportunities and Challenges
The term “bioinspiration” defines a creative approach based on the observation of biological principles and transfer to design. Biomimicry is the recent approach, which describes a large field of scientific and technical activities dealing with an interdisciplinary cooperation between biology and other fields with the goal of solving practical problems addressing innovation or sustainable development. Architecture has been influenced by many aspects of natural and social sciences, among these, biology is currently blending into design activities. Bioinspiration has evolved and shifted architectural practices towards numerous innovative approaches through different bioarchitectural movements from the past until the present. However, there is a blur of biomimicry within bioinspiration in architecture between the direct copy of mere natural forms and the true understanding of biological principles, which is the pivot of sustainable development. The main challenge remains in the gap between the profound knowledge of biology, its related scientific fields and the creative process of architectural design, including cross-disciplinary collaboration between architects and biologists. This entry presents main bioarchitectural movements and how it leads to today’s biomimicry. It proposes to define biomimicry methodologies and how this approach applies to architectural design contexts through the study of existing case studies. The opportunities, challenges and the future outlook of the field will also be discussed.
1.3K
03 Mar 2023
Topic Review
Renewable Energy Sources
Renewable energy sources (RES) have many advantages: (a) increase in RES consumption provides reliability on energy supply and reduces dependence on energy import; (b) larger use of RES is an important measure for the reduction of energy-related greenhouse gas (GHG) emissions; and (c) deployment of RES creates additional employment, stimulates regional economic development, and contributes to the implementation of modern technologies. Various aspects of RES deployment have been analysed in the relevant literature. Currently, the most important aspects are: (a) the role of RES consumption on economic growth; (b) the effect of RES deployment on the decline of energy-related GHG emissions.
1.3K
23 Nov 2021
Topic Review
Reconfigurable Microstrip Filter–Antenna Integration
Reconfigurable and tunable radio frequency (RF) and microwave (MW) components have become exciting topics for many researchers and design engineers in recent years. Reconfigurable microstrip filter–antenna combinations have been studied in the literature to handle multifunctional tasks for wireless communication systems. Using such devices can reduce the need for many RF components and minimize the cost of the whole wireless system, since the changes in the performance of these applications are achieved using electronic tuning techniques. However, with the rapid development of current fourth-generation (4G) and fifth-generation (5G) applications, compact and reconfigurable structures with a wide tuning range are in high demand. Also, meeting these requirements comes with some challenges, namely the increased design complexity and system size. Accordingly, this paper aims to discuss these challenges and review the recent developments in the design techniques used for reconfigurable filters and antennas, as well as their integration. Various designs for different applications are studied and investigated in terms of their geometrical structures and operational performance. This paper begins with an introduction to microstrip filters, antennas, and filtering antennas (filtennas). Then, performance comparisons between the key and essential structures for these aspects are presented and discussed. Furthermore, a comparison between several RF reconfiguration techniques, current challenges, and future developments is presented and discussed in this review. Among several reconfigurable structures, the most efficient designs with the best attractive features are addressed and highlighted in this paper to improve the performance of RF and MW front end systems.
1.3K
20 Nov 2021
Topic Review
Ice Boat
An ice boat (often spelled as "iceboat") is a boat or purpose-built framework similar in functional design to a sail boat but fitted with skis or runners (skates) and designed to run over ice instead of through (liquid) water. Ice yachting is the sport of sailing and racing iceboats. Sail-able ice is known in the sport as "hard water" versus sailing on liquid or "soft" water. A related sport, land sailing, utilizes a configuration with an iceboat-like fuselage or frame equipped with wheels instead of runners. Iceboats commonly used for racing are usually only for one person, but several classes of two-seat and multiple-seat iceboats are more or less common. On some boats, a "side car" can be fitted to take others along for a ride.
1.3K
31 Oct 2022
Topic Review
Radio Frequency Energy Harvesting Application in Medical Devices
Biomedical devices gained widespread application in healthcare sectors due to the favourable feature of continuous monitoring of vital signals from the human body or apparent spurs from the internal body organs. RF (Radio Frequency) energy is a prominent integral block for wearable and implantable medical devices (IMDs) in sustaining the lifetime of the battery in use for an extended period, relaxing the need to change or recharge the battery frequently. This is enabled through the development and integration of ultra-low-power electronics, which decreases the power consumption of the primary sensor components to less than a milliwatt.
1.3K
06 Sep 2022
Topic Review
Fractional-Order Digital Filters
Fractional-order digital filters have developed to provide an alternative solution to higher-order integer-order filters, with increased design flexibility and better performance.
1.3K
21 Sep 2021
Topic Review
High-Temperature Materials in Ammonia/Hydrogen Gas Turbines
This entry reviews the critical role of material selection and design in ensuring efficient performance and safe operation of gas turbine engines fuelled by ammonia–hydrogen. As these energy fuels present unique combustion characteristics in turbine combustors, the identification of suitable materials becomes imperative. Detailed material characterisation is indispensable for discerning defects and degradation routes in turbine components, thereby illuminating avenues for improvement. With elevated turbine inlet temperatures, there is an augmented susceptibility to thermal degradation and mechanical shortcomings, especially in the high-pressure turbine blade—a critical life-determining component.
1.3K
17 Oct 2023
Topic Review
Integral Bridge System
Integral bridges are a class of bridges with integral or semi-integral abutments, designed without expansion joints in the bridge deck of the superstructure. The significance of an integral bridge design is that it avoids durability and recurring maintenance issues with bridge joints, and maybe bearings, which are prevalent in traditional bridges. Integral bridges are less costly to construct.
1.3K
27 Aug 2021
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