For satellite, airborne platform detection and communication systems, according to its typical working characteristics, the mathematical models of the motion characteristics of satellite and airborne platform are esta...
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Ethnic minority architecture in Guangxi serves as a vital medium for cultural heritage preservation. This paper analyzes the characteristics of decorative components, including woodcarving, stone carving, painting, an...
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Cross-organizational, blockchain-based distributed ledger networks in general, and those based on Hyperledger Fabric in particular, have an architecture which can be adapted to specific application requirements. Howev...
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ISBN:
(纸本)9798400705045
Cross-organizational, blockchain-based distributed ledger networks in general, and those based on Hyperledger Fabric in particular, have an architecture which can be adapted to specific application requirements. However, network design can be a particularly challenging task, as the connection between architectural and deployment decisions and extra-functional properties can be subtle and the requirements may contradict each other, requiring trade-offs. In this paper, we propose a model-based distributed ledger architecture design approach which enables expert exploration of design options. We capture key requirements and define architecture fragments using partial modelling. We enumerate qualitatively different architectural candidates by graph generation. We evaluate and rank order candidates in logic solver tooling. As a result, our approach provides generative architectures for distributed ledger networks by enabling efficient exploration of design alternatives.
The rational use of lasers as sources of radiation is also related to the development of opticalsystems for conversion of laser radiation. One of the ways to convert the laser radiation is related to its collimation,...
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The infrared camera based on an all aluminum alloy structure is designed and analyzed. Considering the lightweight requirements and environmental adaptability, utilizing the advantages of thermal difference eliminatio...
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In the recent era of development, metasurfaces have provided a new way to develop ultra-compact multifunctional optical devices by overcoming the bottlenecks of traditional bulky optics. Due to phase singularities, me...
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A concurrent engineering approach to the design of astronomical instrumentation is based on experts of different backgrounds collaborating in the same environment on every aspect of the design, during one or multiple ...
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ISBN:
(纸本)9781510675216;9781510675223
A concurrent engineering approach to the design of astronomical instrumentation is based on experts of different backgrounds collaborating in the same environment on every aspect of the design, during one or multiple dedicated sessions, depending on the complexity of the project. This strategy is very cost effective, and, if managed properly, can optimize the way different teams interact with each other, compared to the traditional "step-by-step" approach, with each team working separately and thus generating a cascade dependency of all subsystems. As the complexity of a project increases, so does the number of teams who work together, and a progressively larger number of interactions is required to allow all the actors to talk to each other. For projects of the complexity that is often dealt with in space or ground-based astronomy, concurrent engineering has been proven to be extremely efficient in terms of time and effort, especially for feasibility studies and preliminary design, but also during the following phases. In this work, an analysis of the methodologies that are typical of a concurrent design approach is made, with a focus on the tools that can be adopted for an efficient coordination of all the people involved. These tools and methodologies will be applied to the Concurrent design Facility in construction at the Capodimonte Astronomical Observatory in Naples, in the scope of the National Recovery and Resilience Plan project "STILES Strengthening the Italian leadership in ELT and SKA", with the aim of significantly improving the design process of the present and future classes of astronomical instrumentation.
The proceedings contain 49 papers. The topics discussed include: analysis of the influence of typical parameters on scattering characteristics of space target;autocalibration full-stokes imaging polarimetry using a po...
ISBN:
(纸本)9781510679740
The proceedings contain 49 papers. The topics discussed include: analysis of the influence of typical parameters on scattering characteristics of space target;autocalibration full-stokes imaging polarimetry using a polarization array;research on camouflaged object image enhancement using subblock histogram equalization in HSV space;design of cluster scheduling system based on high performance hybrid architecture;spatiotemporal variation of surface energy flux in Hefei City based on multi-spectral data;crop lodging area detection using polarimetric SAR images;electronic design of a spatial low-light camera;structure feature extraction algorithm for multi-modal forearm registration;and laser communication systems between high-altitude aircraft and underwater platforms with real-time PPM time slot correction algorithm.
This research study explores various aspects of LDPC (Low-Density Parity-Check) codes in different communication scenarios. This study has analysed various research topics such as LDPC code design, decoding algorithms...
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