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6,673 Results Found

  • Article
  • Open Access
23 Citations
8,206 Views
15 Pages

14 April 2014

Information geometry studies the dually flat structure of a manifold, highlighted by the generalized Pythagorean theorem. The present paper studies a class of Bregman divergences called the (ρ,τ)-divergence. A (ρ,τ) -divergence generates a dually fla...

  • Article
  • Open Access
5 Citations
4,483 Views
19 Pages

12 October 2022

When representing the geometry of voxelized three-dimensional scenes (especially if they have been voxelized to high resolutions) in a naive—uncompressed—form, one may end up using vast amounts of data. These can easily attack the availab...

  • Article
  • Open Access
1,602 Views
31 Pages

1 September 2025

The line structure is an efficient form of representation and modeling for LiDAR point clouds, while the Line Structure Construction (LSC) method aims to extract complete and coherent line structures from complex 3D point clouds, thereby providing a...

  • Article
  • Open Access
3 Citations
2,613 Views
19 Pages

20 March 2022

Temperature field calculation is an important step in infrared image simulation. However, the existing solutions, such as heat conduction modelling and pre-generated lookup tables based on temperature calculation tools, are difficult to meet the requ...

  • Article
  • Open Access
8 Citations
2,708 Views
16 Pages

19 June 2023

Tree species classification is a ubiquitous task in the forest inventory field. Only directly measured feature vectors have been applied to most existing methods that use LiDAR technology for tree species classification. As a result, it is difficult...

  • Feature Paper
  • Review
  • Open Access
12 Citations
4,865 Views
20 Pages

5 June 2018

In this paper, we present a review of recent developments on the κ -deformed statistical mechanics in the framework of the information geometry. Three different geometric structures are introduced in the κ -formalism which are obt...

  • Article
  • Open Access
1 Citations
991 Views
27 Pages

30 May 2025

Ultra-high-pressure hydrogen solenoid valves face a fundamental design challenge of operating across a wide pressure range from 2 MPa to 87.5 MPa. To address the conflicting requirements of effective sealing at low pressures and structural integrity...

  • Article
  • Open Access
5 Citations
3,663 Views
12 Pages

Structural Geometry Variation of 1,4-Naphthalene-Based Co-Polymers to Tune the Device Performance of PVK-Host-Based OLEDs

  • Qian Liu,
  • Dhanashree Moghe,
  • Gopa Sardar,
  • Sergei Manzhos,
  • Steven E. Bottle,
  • Aung Ko Ko Kyaw,
  • Dinesh Kabra and
  • Prashant Sonar

30 August 2021

Blue-color-emitting organic semiconductors are of significance for organic light-emitting diodes (OLEDs). In this study, through Suzuki coupling polymerization, three 1,4-naphthalene-based copolymers—namely, PNP(1,4)-PT, PNP(1,4)-TF, and PNP(1,4)-ANT...

  • Article
  • Open Access
9 Citations
3,859 Views
15 Pages

The Effect of Lateral Load Type on Shear Lag of Concrete Tubular Structures with Different Plan Geometries

  • Mostafa Moghadasi,
  • Soheil Taeepoor,
  • Seyed Saeid Rahimian Koloor and
  • Michal Petrů

3 October 2020

Tubular structures are extensively recognized as a high efficiency and economically reasonable structural system for the design and construction of skyscrapers. The periphery of the building plan in a tubular system consists of closely spaced columns...

  • Article
  • Open Access
16 Citations
7,376 Views
16 Pages

The Geometry of Concepts: Sparse Autoencoder Feature Structure

  • Yuxiao Li,
  • Eric J. Michaud,
  • David D. Baek,
  • Joshua Engels,
  • Xiaoqing Sun and
  • Max Tegmark

27 March 2025

Sparse autoencoders have recently produced dictionaries of high-dimensional vectors corresponding to the universe of concepts represented by large language models. We find that this concept universe has interesting structure at three levels: (1) The...

  • Article
  • Open Access
126 Citations
11,512 Views
12 Pages

30 January 2018

Wire and arc-based additive manufacturing (WAAM) is a rapidly developing technology which employs a welding arc to melt metal wire for additive manufacturing purposes. During WAAM of thin-walled structures, as the wall height increases, the heat diss...

  • Article
  • Open Access
17 Citations
3,823 Views
20 Pages

Wall Structure Geometry Verification Using TLS Data and BIM Model

  • Gabriela Bariczová,
  • Ján Erdélyi,
  • Richard Honti and
  • Lukáš Tomek

12 December 2021

Building information modeling (BIM) represents significant progress in the field of digitalization and informatization of the construction process. The virtual model (BIM model) is the source of graphic data among other information, which are applica...

  • Article
  • Open Access
5 Citations
2,342 Views
13 Pages

26 June 2023

The line structured light plane calibration method using a plane target cannot produce satisfactory calibration results due to inaccurate positioning of the calibrated points. Field of view noise and sensor noise affect the target light stripe extrac...

  • Article
  • Open Access
25 Citations
4,343 Views
12 Pages

Effect of Thermal Management Approaches on Geometry and Productivity of Thin-Walled Structures of ER 5356 Built by Wire + Arc Additive Manufacturing

  • Leandro João da Silva,
  • Henrique Nardon Ferraresi,
  • Douglas Bezerra Araújo,
  • Ruham Pablo Reis and
  • Américo Scotti

20 September 2021

The present paper aimed at assessing the effect of two thermal management approaches on geometry and productivity of thin-walled structures built by Wire + Arc Additive Manufacturing (WAAM). Thin-walls of ER 5356 (Al5Mg) with different lengths and th...

  • Article
  • Open Access
26 Citations
2,506 Views
16 Pages

Fabrication of Multi-Walled Structure through Parametric Study of Bead Geometries of GMAW-Based WAAM Process of SS309L

  • Jay Vora,
  • Rudram Pandey,
  • Pratik Dodiya,
  • Vivek Patel,
  • Sakshum Khanna,
  • Vatsal Vaghasia and
  • Rakesh Chaudhari

21 July 2023

In the present study, an attempt is made to investigate and optimize the bead geometries of bead width (BW) and bead height (BH) of SS-309L using an SS316L substrate by employing a gas metal arc welding (GMAW)-based wire-arc additive manufacturing (W...

  • Article
  • Open Access
13 Citations
6,048 Views
26 Pages

Aircraft Pose Estimation Based on Geometry Structure Features and Line Correspondences

  • Xichao Teng,
  • Qifeng Yu,
  • Jing Luo,
  • Gang Wang and
  • Xiaohu Zhang

9 May 2019

A robust and accurate aircraft pose estimation method is proposed in this paper. The aircraft pose reflects the flight status of the aircraft and accurate pose measurement is of great importance in many aerospace applications. This work aims to estab...

  • Article
  • Open Access
4 Citations
4,635 Views
10 Pages

Correlated Disorder in Myelinated Axons Orientational Geometry and Structure

  • Michael Di Gioacchino,
  • Gaetano Campi,
  • Nicola Poccia and
  • Antonio Bianconi

While the ultrastructure of myelin is considered a quasi-crystalline stable system, nowadays its multiscale complex dynamics appear to play a key role in its functionality, degeneration and repair processes following neurological diseases and trauma....

  • Article
  • Open Access
4 Citations
2,397 Views
19 Pages

Effect of Parameters of Pool Geometry on Flow Structure in Nature-like Fishway

  • Qiaoyi Hu,
  • Xiaogang Wang,
  • Long Zhu,
  • Shuai Du and
  • Feifei He

Many uncertainties such as variable irregular structure and complex flow conditions bring difficulties to the design of a nature-like fishway. This study defines the main factors and parameters affecting flow conditions such as permeability ratio, of...

  • Article
  • Open Access
2 Citations
1,827 Views
19 Pages

21 December 2022

In the present paper, a new approach to identifying an arbitrary number of inclusions, their geometry and their location in 2D and 3D structures using topological optimization was proposed. The new approach was based on the lack of initial informatio...

  • Article
  • Open Access
1 Citations
2,050 Views
21 Pages

Influence of Infill Geometry and Density on the Mechanical Properties of 3D-Printed Polylactic Acid Structure

  • Jozef Jaroslav Fekiač,
  • Lucia Kakošová,
  • Michal Krbata,
  • Marcel Kohutiar,
  • Maroš Eckert,
  • Zbynek Studeny and
  • Andrej Dubec

Additive manufacturing of polymer composites, also known as 3D printing, is one of the progressive technologies in material engineering. It enables the production of parts with complex geometries while optimizing material efficiency. Polylactide (PLA...

  • Article
  • Open Access
91 Views
17 Pages

Semantic Latent Geometry Reveals Imagination–Perception Structure in EEG

  • Hossein Ahmadi,
  • Martina Impagnatiello and
  • Luca Mesin

8 January 2026

We investigate whether representation-level, semantic diagnostics expose structure in electroencephalography (EEG) beyond conventional accuracy when contrasting perception and imagination and relating outcomes to self-reported imagery ability. Using...

  • Review
  • Open Access
4 Citations
1,247 Views
15 Pages

Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars

  • Richard Ignace,
  • Kenneth G. Gayley,
  • Roberto Casini,
  • Paul Scowen,
  • Christiana Erba and
  • Jeremy Drake

11 April 2025

Spectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of stellar polarimetry for massive hot stars, particularly in the contex...

  • Article
  • Open Access
20 Citations
4,246 Views
20 Pages

Study on Geometry, Dimensional Accuracy and Structure of Parts Produced by Multi Jet Fusion

  • Martyna Adach,
  • Paweł Sokołowski,
  • Tomasz Piwowarczyk and
  • Krzysztof Nowak

11 August 2021

Multi Jet Fusion (MJF) is one of the newest additive manufacturing technologies for polymer powders, introduced in recent years. This fully industrial technology is gaining big interest as it allows fast, layer-by-layer, printing process, short produ...

  • Article
  • Open Access
4 Citations
2,374 Views
10 Pages

16 August 2022

Owing to the requirements of the AM system integration and standardization for an AM part structure, the AM features and parameters need to extend their related data entities for better information exchange and sharing based on STEP-NC Part 17 for ad...

  • Article
  • Open Access
14 Citations
3,120 Views
14 Pages

20 January 2022

This article considers the use of additive manufacturing to produce cutting tools for various machining operations, especially turning, milling, and drilling. The right geometry and material of the tool as well as coatings applied on cutting edges ar...

  • Article
  • Open Access
6 Citations
2,609 Views
22 Pages

15 September 2022

The abrasive machining of cortical tissue is used in many arthroplasties and craniofacial surgery procedures. However, this method requires further research due to the processes’ complexity and the tissue’s composite structure. Therefore,...

  • Article
  • Open Access
1,415 Views
48 Pages

19 March 2025

The calcareous nannoplankton comprises haptophyte eukaryotes known as coccolithophores, capable of calcifying elaborate external skeletons (coccoliths s.l.) which differ morphologically depending on the phase of the life cycle considered, and the loc...

  • Article
  • Open Access
2 Citations
1,915 Views
14 Pages

26 July 2023

This paper aims to investigate the impact of beam deflection geometry on the structure, surface architecture, and friction coefficient of electron-beam-modified TC4 titanium alloys. During the experiments, the electron beam was deflected in the form...

  • Article
  • Open Access
2 Citations
2,444 Views
17 Pages

A Tale of Two Chains: Geometries of a Chain Model and Protein Native State Structures

  • Tatjana Škrbić,
  • Achille Giacometti,
  • Trinh X. Hoang,
  • Amos Maritan and
  • Jayanth R. Banavar

12 February 2024

Linear chain molecules play a central role in polymer physics with innumerable industrial applications. They are also ubiquitous constituents of living cells. Here, we highlight the similarities and differences between two distinct ways of viewing a...

  • Article
  • Open Access
1,804 Views
24 Pages

Canonical Quantization of Metric Tensor for General Relativity in Pseudo-Riemannian Geometry

  • Abdel Nasser Tawfik,
  • Salah G. Elgendi,
  • Sameh Shenawy and
  • Mahmoud Hanafy

20 October 2025

By extending the four-dimensional semi-Riemann geometry to higher-dimensional Finsler/Hamilton geometry, the canonical quantization of the fundamental metric tensor of general relativity, i.e., an approach that tackles a geometric quantity, is derive...

  • Article
  • Open Access
580 Views
23 Pages

Directional Auxetic Behavior of Mechanical Metamaterials: Material-Dependent and Geometry-Driven Mechanisms

  • Barbara Schürger,
  • Jozef Bocko,
  • Peter Frankovský,
  • Ingrid Delyová and
  • Ján Kostka

10 November 2025

Mechanical metamaterials derive their unconventional properties from geometry rather than composition, enabling phenomena such as negative Poisson’s ratio and tunable stiffness. This study presents a systematic finite element analysis of three...

  • Article
  • Open Access
6 Citations
3,950 Views
36 Pages

9 November 2022

The idea of a canonical ensemble from Gibbs has been extended by Jean-Marie Souriau for a symplectic manifold where a Lie group has a Hamiltonian action. A novel symplectic thermodynamics and information geometry known as “Lie group thermodynam...

  • Article
  • Open Access
2 Citations
2,754 Views
14 Pages

In this paper, we empirically verify the validity of the extended Technology Acceptance Model (TAM) for the use of Dynamic Geometry Software (DGS) in teaching geometry, as proposed by Pittalis. The model includes the notion of “perceived pedago...

  • Article
  • Open Access
9 Citations
3,613 Views
16 Pages

Metamaterials of Auxetic Geometry for Seismic Energy Absorption

  • Ahmed Abdalfatah Saddek,
  • Tzu-Kang Lin,
  • Wen-Kuei Chang,
  • Chia-Han Chen and
  • Kuo-Chun Chang

7 August 2023

The propagation of earthquake energy occurs primarily through elastic waves. If the seismic force input to a structure can be directly reduced from the source, then the structure can be protected from seismic wave energy. Seismic metamaterials, regar...

  • Article
  • Open Access
1 Citations
2,169 Views
22 Pages

8 June 2023

The development of a robust 3D imaging system for underwater applications is a crucial process in underwater imaging where the physical properties of the underwater environment make the implementation of such systems challenging. Calibration is an es...

  • Article
  • Open Access
1 Citations
1,898 Views
17 Pages

31 January 2023

The geometry–dependent magnetoelectric (ME) and exchange bias (EB) effects of the nano ME sensor were investigated. The sensor consisted of the Longitudinal–Transverse (L–T) mode bi–layer bar structure comprising the ferromagn...

  • Proceeding Paper
  • Open Access
416 Views
8 Pages

10 December 2025

Auxetic structures exhibit a negative Poisson’s ratio, enabling enhanced energy absorption and deformation capabilities compared to conventional materials. In this study, a re-entrant auxetic geometry was fabricated using stereolithography (SLA...

  • Review
  • Open Access
33 Citations
6,792 Views
45 Pages

14 December 2022

With the application of microdevices in the building engineering, aerospace industry, electronic devices, nuclear energy, and so on, the dissipation of high heat flux has become an urgent problem to be solved. Microchannel heat sinks have become an e...

  • Opinion
  • Open Access
2,257 Views
6 Pages

Since chemistry, materials science, and crystallography deal with three-dimensional structures, they use mathematics such as geometry and symmetry. In recent years, the application of topology and mathematics to material design has yielded remarkable...

  • Article
  • Open Access
11 Citations
3,305 Views
27 Pages

9 December 2019

The investigation of size effects appearing in the dependence of AlGaN/GaN HEMT high-frequency characteristics on channel width d and number of sections n is conducted using the notions of measure, metric and normed functional (linear) spaces. In acc...

  • Article
  • Open Access
4 Citations
2,588 Views
21 Pages

Plant Foliar Geometry as a Biomimetic Template for Antenna Design

  • Jose Ignacio Lozano,
  • Marco A. Panduro,
  • Rodrigo Méndez-Alonzo,
  • Miguel A. Alonso-Arevalo,
  • Roberto Conte and
  • Alberto Reyna

Plant diversity includes over 300,000 species, and leaf structure is one of the main targets of selection, being highly variable in shape and size. On the other hand, the optimization of antenna design has no unique solution to satisfy the current ra...

  • Review
  • Open Access
12 Citations
6,865 Views
43 Pages

19 May 2023

As the field of deep learning experiences a meteoric rise, the urgency to decipher the complex geometric properties of feature spaces, which underlie the effectiveness of diverse learning algorithms and optimization techniques, has become paramount....

  • Article
  • Open Access
11 Citations
5,176 Views
27 Pages

23 February 2023

Proton exchange membrane fuel cells are a new energy technology with great potential due to advantages such as high efficiency and no pollution. The structure of the gas flow channels has a profound impact on the overall performance of the fuel cell....

  • Article
  • Open Access
36 Citations
4,585 Views
24 Pages

Experiment of Structural Geometric Morphology Monitoring for Bridges Using Holographic Visual Sensor

  • Shuai Shao,
  • Zhixiang Zhou,
  • Guojun Deng,
  • Peng Du,
  • Chuanyi Jian and
  • Zhongru Yu

21 February 2020

To further improve the precision and efficiency of structural health monitoring technology and the theory of large-scale structures, full-field non-contact structural geometry morphology monitoring is expected to be a breakthrough technology in struc...

  • Article
  • Open Access
6 Citations
6,483 Views
25 Pages

1 October 2022

New studies and reports are published on a daily basis about the dangers of climate change and its main causes: humanity’s constantly growing population, the built environment and resource consumption. The built environment is responsible for a...

  • Article
  • Open Access
3,320 Views
32 Pages

23 December 2022

This research analyses the geometric modifications and improvements that the application of the technique of metallurgy meant for architecture. In the early days of engineering and without having the historical burden that architecture bore, the smal...

  • Article
  • Open Access
17 Citations
7,330 Views
22 Pages

New Insights for Understanding the Structural Deformation Style of the Strike-Slip Regime along the Wadi Shueib and Amman-Hallabat Structures in Jordan Based on Remote Sensing Data Analysis

  • Mu’ayyad Al Hseinat,
  • Abdulla Al-Rawabdeh,
  • Malek Al-Zidaneen,
  • Hind Ghanem,
  • Masdouq Al-Taj,
  • Abdullah Diabat,
  • Ghaleb Jarrar and
  • Mohammad Atallah

This paper presents new findings that contribute to the understanding of the deformational style of the Wadi Shueib Structure (WSS) and the Amman-Halabat Structure (AHS) and their relationship with the regional tectonic regime of the Dead Sea Transfo...

  • Article
  • Open Access
14 Citations
3,407 Views
22 Pages

Carotid artery diseases, such as atherosclerosis, are a major cause of death in the United States. Wall shear stresses are known to prompt plaque formation, but there is limited understanding of the complex flow structures underlying these stresses a...

  • Article
  • Open Access
69 Citations
7,276 Views
22 Pages

Validation of Close-Range Photogrammetry for Architectural and Archaeological Heritage: Analysis of Point Density and 3D Mesh Geometry

  • Juan Moyano,
  • Juan Enrique Nieto-Julián,
  • David Bienvenido-Huertas and
  • David Marín-García

31 October 2020

The 3D digitization and Building Information Modeling (BIM), which is based on parametric objects, have considerably advanced by developing massive data capture techniques. Thus, reverse engineering currently plays a major role as these technologies...

  • Article
  • Open Access
6 Citations
4,573 Views
25 Pages

Implementation of Open Data Exchange between Architectural Design and Structural Analysis Models

  • Goran Sibenik,
  • Iva Kovacic,
  • Valentinas Petrinas and
  • Wendelin Sprenger

2 December 2021

Building information modelling promises model-based collaboration between stakeholders in the project design stage. However, data exchange between physical and analytical building models used for architectural design and structural analysis respectiv...

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