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Search · four archives
22 papers · ranked by Valyu relevance
Jian Zhao, Jianming Wang, Jiting Yin, Yuling Chen + 1 more
Introduction The rational structure of forest stands plays a crucial role in maintaining ecosystem functions, enhancing community stability, and ensuring sustainable management. Although progress has been made in stand structure optimization, most existing studies focus on static improvements and fail to adequately…
Jianming Wang, Chenyang Lv, Jiting Yin, Yuling Chen + 2 more
Introduction Secondary forests are often characterized by irrational stand structures and spatial imbalances, which constrain the full realization of their ecological functions. Existing deep learning approaches for stand structure optimization still face several limitations, including low computational efficiency…
Natacha Savine, Thomas Cordonnier, Gauthier Ligot, Patrick Vallet
Tree height is a key variable for assessing forest functioning and resources (e.g volume, carbon stocks) at both tree and stand levels. However, direct field measurements are costly and time-consuming. Developing accurate and unbiased height-diameter allometries applicable over large spatial scales is therefore crucial…
Natacha Savine, Thomas Cordonnier, Gauthier Ligot, Patrick Vallet
Tree height is a key variable for assessing forest functioning and resources (e.g volume, carbon stocks) at both tree and stand levels. However, direct field measurements are costly and time-consuming. Developing accurate and unbiased height-diameter allometries applicable over large spatial scales is therefore crucial…
Karol Grębowski, Magdalena Rucka, Krzysztof Wilde
This paper presents the concept of repairing the stand of a motorbike speedway stadium. The synchronized dancing of fans cheering during a meeting brought the stand into excessive resonance. The main goal of this research was to propose a method for the structural tuning of stadium stands. Non-destructive testing by…
Jason J. Maldonis, Zhongnan Xu, Zhewen Song, Min Yu + 3 more
'Dane Morgan' 'Paul M. Voyles'] StructOpt, an open-source structure optimization suite, applies genetic algorithm and particle swarm methods to obtain atomic structures that minimize an objective function. The objective function typically consists of the energy and the error between simulated and experimental data…
Authors not listed
With the ever-increasing demand for atomistic structures representative of real-life systems as well as the ad-vent of exascale computers, it has now become necessary and possible to use advanced global optimization (GO) techniques to intelligently sample the potential energy surface (PES). Given the previous studies…
Edwin P. Duque, Daniel Villarreal, Henrry Rojas A
The optimization of civil structures is a technique whose purpose is to efficiently use the materials that make up the structural systems based on previously established restrictions and objectives. The use and development of these techniques has been closely linked to technological advance since, through the use of…
Iván Negrin, Dirk Roose, Ernesto Chagoyén Méndez, Geert Lombaert
A method to minimize the cost of the structural design of reinforced concrete structures using Biogeography-Based Optimization, an evolutionary algorithm, is presented. SAP2000 is used as computational engine, taking into account modelling aspects such as static soil-structure interaction (SSSI). The optimization…
Authors not listed
This article presents an overview about the state of the art in the development of structured packings for distillation applications. The focus is on highlighting different approaches including heuristic development cycles, the development of new packing structures, 3D-printing as tool for manufacturing, and…
Luis Saucedo-Mora, Ismael Ben-Yelun, Hugo García-Modet, Miguel Ángel Sanz-Gómez + 1 more
The design and manufacturing of high value industrial components is suffering a change of paradigm with 3D printing. In this change of paradigm, metamaterials have an important role because when a component is 3D-printed, it is performed from the micro level, where custom structures may be designed to endow the…
Xiaojia Shelly Zhang, Eric de Sturler, Gláucio H. Paulino
We propose an efficient probabilistic method to solve a deterministic problem – we present a randomized optimization approach that drastically reduces the enormous computational cost of optimizing designs under many load cases for both continuum and truss topology optimization. Practical structural designs by topology…
Tomáš Stejskal, Miroslav Dovica, Jozef Svetlík, Peter Demeč + 2 more
'Lukáš Hrivniak' 'Michal Šašala'] Topology optimization is a dynamically developing area of industrial engineering. One of the optimization tasks is to create new part shapes, while maintaining the highest possible stiffness and reliability and minimizing weight. Thanks to computer technology and 3D printers, this path…
Shengyu Yan, Jasmin Jelovica
Prismatic sandwich panels fabricated from metals offer a compelling alternative to more traditional panels across diverse industries, primarily due to their superior strength-to-weight ratio. Although several core types were proposed in the past, further improvements in performance could be achieved by devising the…
Shenyuan Ma, Jakub Mareček, Vyacheslav Kungurtsev, Marek Tyburec
semidefinite programming Authors: ['Shenyuan Ma' 'Jakub Mareček' 'Vyacheslav Kungurtsev' 'Marek Tyburec'] Designing lightweight yet stiff vibrating structures has been a long-standing objective in structural optimization. Here, we consider the optimization of a structural design subject to forces in the form of…
Eline van der Kruk, Thomas Geijtenbeek
Standing up from a chair is a key daily life activity that is sensitive to functional limitations as we age and associated with falls, frailty, and institutional living. Predictive neuromusculoskeletal models can potentially shed light on the interconnectivity and interdependency of age-related changes in neuromuscular…
Marek Tyburec, Jan Zeman, Martin Doškář, Martin Kružík + 1 more
Modularity is appealing for solving many problems in optimization. It brings the benefits of manufacturability and reconfigurability to structural optimization, and enables a trade-off between the computational performance of a Periodic Unit Cell (PUC) and the efficacy of non-uniform designs in multi-scale material…
Eric Hermes, Khachik Sargsyan, Habib Najm, Judit Zádor
We present a new algorithm for the optimization of molecular structures to saddle points on the potential energy surface using a redundant internal coordinate system. This algorithm automates the procedure of defining the internal coordinate system, including the handling of linear bending angles, e.g. through the…
Authors not listed
Experimental design plays an important role in efficiently acquiring informative data for system characterization and deriving robust conclusions under resource limitations. Recent advancements in high-throughput experimentation coupled with machine learning have notably improved experimental procedures. While Bayesian…
Luca Grementieri, Francesco Finelli
Static analysis of structures is a fundamental step for determining the stability of structures. Both linear and non-linear static analyses consist of the resolution of sparse linear systems obtained by the finite element method. The development of fast and optimized solvers for sparse linear systems appearing in…
Pablo Quijano Velasco, Kedar Hippalgaonkar, Balamurugan Ramalingam
The discovery of optimal conditions of chemical reactions is a labor-intensive, time-consuming task that requires exploring a high-dimensional parametric space. Historically the optimization of chemical reactions has been performed by manual experimentation guided by human intuition and Design of Experiments where one…
Authors not listed
Photo-actuated organic crystals, which can be remotely controlled by light, are gaining attention as next-generation actuator materials. In the practical application of actuator materials, not only the mode of deformation but also the output force is an important property. Since the output force depends on both the…