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1,381 Results Found

  • Article
  • Open Access
3 Citations
3,169 Views
7 Pages

3 November 2018

The fabrication of nanoscale patterns over a large area has been considered important but difficult, because there are few ways to satisfy both conditions. Previously, visually tolerable tiling (VTT) for fabricating nanopatterns for optical applicati...

  • Article
  • Open Access
3 Citations
2,854 Views
22 Pages

Space-Time Loop Tiling for Dynamic Programming Codes

  • Wlodzimierz Bielecki and
  • Marek Palkowski

12 September 2021

We present a new space-time loop tiling approach and demonstrate its application for the generation of parallel tiled code of enhanced locality for three dynamic programming algorithms. The technique envisages that, for each loop nest statement, sub-...

  • Article
  • Open Access
3,731 Views
10 Pages

Tiling Rectangles and the Plane Using Squares of Integral Sides

  • Bahram Sadeghi Bigham,
  • Mansoor Davoodi Monfared,
  • Samaneh Mazaheri and
  • Jalal Kheyrabadi

29 March 2024

We study the problem of perfect tiling in the plane and explore the possibility of tiling a rectangle using integral distinct squares. Assume a set of distinguishable squares (or equivalently a set of distinct natural numbers) is given, and one has t...

  • Article
  • Open Access
14 Citations
3,786 Views
18 Pages

Modeling and Analysis of hHoneycomb—A Polyhex Inspired Reconfigurable Tiling Robot

  • Rizuwana Parween,
  • Yuyao Shi,
  • Karthikeyan Parasuraman,
  • Ayyalusami Vengadesh,
  • Vinu Sivanantham,
  • Sriharsha Ghanta and
  • Rajesh Elara Mohan

30 June 2019

hHoneycomb, a self-reconfigurable cleaning robot, is designed based on tiling theory, to overcome the significant challenges experienced by the fixed morphology cleaning robot. It consists of four regular hexagonal units and the units are connected b...

  • Article
  • Open Access
4 Citations
2,889 Views
15 Pages

Icosahedral Polyhedra from D6 Lattice and Danzer’s ABCK Tiling

  • Abeer Al-Siyabi,
  • Nazife Ozdes Koca and
  • Mehmet Koca

30 November 2020

It is well known that the point group of the root lattice D6 admits the icosahedral group as a maximal subgroup. The generators of the icosahedral group H3, its roots, and weights are determined in terms of those of D6. Platonic and Archimedean solid...

  • Article
  • Open Access
1,883 Views
13 Pages

Efficiency of Various Tiling Strategies for the Zuker Algorithm Optimization

  • Piotr Blaszynski,
  • Marek Palkowski,
  • Wlodzimierz Bielecki and
  • Maciej Poliwoda

29 February 2024

This paper focuses on optimizing the Zuker RNA folding algorithm, a bioinformatics task with non-serial polyadic dynamic programming and non-uniform loop dependencies. The intricate dependence pattern is represented using affine formulas, enabling th...

  • Article
  • Open Access
6 Citations
5,701 Views
41 Pages

12 May 2022

The general problem of tiling finite regions of the plane with polyominoes is NP-complete, and so the associated computational geometry problem rapidly becomes intractable for large instances. Thus, the need to reduce algorithm complexity for tiling...

  • Article
  • Open Access
2,404 Views
10 Pages

14 November 2022

We report two patients, one with and one without long-term persistent tiling inside an arcuate macular scotoma. In both cases, the scotoma was caused by a cilioretinal artery occlusion. Both patients were almost identical regarding the location and e...

  • Article
  • Open Access
4 Citations
7,372 Views
21 Pages

17 February 2022

Checkerboard colouring arguments for proving that a given collection of polyominoes cannot tile a finite target region of the plane are well-known and typically applied on a case-by-case basis. In this article, we give a systematic mathematical treat...

  • Article
  • Open Access
17 Citations
6,563 Views
21 Pages

Tackling Area Coverage Problems in a Reconfigurable Floor Cleaning Robot Based on Polyomino Tiling Theory

  • Veerajagadheswar Prabakaran,
  • Rajesh Elara Mohan,
  • Vinu Sivanantham,
  • Thejus Pathmakumar and
  • Suganya Sampath Kumar

28 February 2018

Whilst Polyomino tiling theory has been extensively studied as a branch of research in mathematics, its application has been largely confined to multimedia, graphics and gaming domains. In this paper, we present a novel application of Tromino tiling...

  • Feature Paper
  • Article
  • Open Access
11 Citations
4,562 Views
13 Pages

Voronoi Entropy vs. Continuous Measure of Symmetry of the Penrose Tiling: Part I. Analysis of the Voronoi Diagrams

  • Edward Bormashenko,
  • Irina Legchenkova,
  • Mark Frenkel,
  • Nir Shvalb and
  • Shraga Shoval

8 September 2021

A continuous measure of symmetry and the Voronoi entropy of 2D patterns representing Voronoi diagrams emerging from the Penrose tiling were calculated. A given Penrose tiling gives rise to a diversity of the Voronoi diagrams when the centers, vertice...

  • Article
  • Open Access
34 Citations
4,022 Views
20 Pages

Optimization Complete Area Coverage by Reconfigurable hTrihex Tiling Robot

  • Anh Vu Le,
  • Rizuwana Parween,
  • Rajesh Elara Mohan,
  • Nguyen Huu Khanh Nhan and
  • Raihan Enjikalayil Abdulkader

3 June 2020

Completed area coverage planning (CACP) plays an essential role in various fields of robotics, such as area exploration, search, rescue, security, cleaning, and maintenance. Tiling robots with the ability to change their shape is a feasible solution...

  • Article
  • Open Access
35 Citations
18,938 Views
15 Pages

Focal Conic Stacking in Smectic A Liquid Crystals: Smectic Flower and Apollonius Tiling

  • Claire Meyer,
  • Loic Le Cunff,
  • Malika Belloul and
  • Guillaume Foyart

22 April 2009

We investigate two different textures of smectic A liquid crystals. These textures are particularly symmetric when they are observed at crossed polars optical microscopy. For both textures, a model has been made in order to examine the link between t...

  • Article
  • Open Access
11 Citations
3,877 Views
22 Pages

Multi-Criteria Decision Making for Efficient Tiling Path Planning in a Tetris-Inspired Self-Reconfigurable Cleaning Robot

  • Maryam Kouzehgar,
  • Mohan Rajesh Elara,
  • Mahima Ann Philip,
  • Manimuthu Arunmozhi and
  • Veerajagadheswar Prabakaran

25 December 2018

In this study, we aim to optimize and improve the efficiency of a Tetris-inspired reconfigurable cleaning robot. Multi-criteria decision making (MCDM) is utilized as a powerful tool to target this aim by introducing the best solution among others in...

  • Technical Note
  • Open Access
1 Citations
2,061 Views
25 Pages

Open-Source Software for Building-Integrated Photovoltaic Tiling for Novelty Architecture

  • Alexander W. H. Chin,
  • Koami Soulemane Hayibo and
  • Joshua M. Pearce

10 November 2024

Novelty architecture buildings can be tiled with conventional rectangular solar photovoltaic (PV) modules with both close-packed cells or partially transparent modules, vastly increasing renewable energy, reducing carbon emissions, and allowing for p...

  • Article
  • Open Access
1 Citations
4,088 Views
31 Pages

This study examines the architectural ceramic corpus—comprising azulejos (tiles) and alicatados (tiling mosaics)—preserved in the Alhambra Museum, with the aim of elucidating its historical, artistic, and technical significance. Through a...

  • Article
  • Open Access
1 Citations
1,181 Views
13 Pages

Enhancing Resolution for Flash LiDAR with Multi-View Imaging Optics and Range Image Tiling

  • Jui-Hsiang Yen,
  • Shao-Jung Li,
  • Zih-Ying Fang and
  • Cheng-Huan Chen

23 May 2025

Flash LiDAR can be used to capture the depth information or contour profile of a target area in one shot and, therefore, has become an important feature in depth sensing devices. Current flash LiDAR devices still suffer from resolution issues due to...

  • Article
  • Open Access
27 Citations
3,434 Views
18 Pages

Energy Consumption Estimation Model for Complete Coverage of a Tetromino Inspired Reconfigurable Surface Tiling Robot

  • Arunmozhi Manimuthu,
  • Anh Vu Le,
  • Rajesh Elara Mohan,
  • Prabahar Veerajagadeshwar,
  • Nguyen Huu Khanh Nhan and
  • Ku Ping Cheng

13 June 2019

As autonomous tiling devices begin to perform floor cleaning, agriculture harvesting, surface painting tasks, with minimal or no human intervention, a new challenge arises: these devices also need to be energy efficient and be constantly aware of the...

  • Article
  • Open Access
1,052 Views
29 Pages

23 June 2025

Satellite image-based farmland classification plays an essential role in agricultural monitoring. However, typical tiling-based classification approaches, which extract patches at fixed offsets within each image during training, often suffer from str...

  • Article
  • Open Access
31 Citations
5,266 Views
16 Pages

Coverage Path Planning Using Reinforcement Learning-Based TSP for hTetran—A Polyabolo-Inspired Self-Reconfigurable Tiling Robot

  • Anh Vu Le,
  • Prabakaran Veerajagadheswar,
  • Phone Thiha Kyaw,
  • Mohan Rajesh Elara and
  • Nguyen Huu Khanh Nhan

7 April 2021

One of the critical challenges in deploying the cleaning robots is the completion of covering the entire area. Current tiling robots for area coverage have fixed forms and are limited to cleaning only certain areas. The reconfigurable system is the c...

  • Article
  • Open Access
7 Citations
10,204 Views
46 Pages

Taylor–Socolar Hexagonal Tilings as Model Sets

  • Jeong-Yup Lee and
  • Robert V. Moody

28 December 2012

The Taylor–Socolar tilings are regular hexagonal tilings of the plane but are distinguished in being comprised of hexagons of two colors in an aperiodic way. We place the Taylor–Socolar tilings into an algebraic setting, which allows one to see them...

  • Article
  • Open Access
370 Views
29 Pages

15 December 2025

This work addresses computational inefficiency in ultra-wide-area remote sensing image (RSI) object detection. Traditional homogeneous tiling strategies enforce computational symmetry by processing all image regions uniformly, ignoring the intrinsic...

  • Article
  • Open Access
3 Citations
6,103 Views
27 Pages

A PDF Tile Model for Geographic Map Data

  • Xiaodong Zhou,
  • Tinghua Ai,
  • Nina Meng and
  • Peng Xie

Vector tile mapping is an important issue in web map research. At present, vector tile mapping requires the symbolization of geographic information, as supported by cartographic software, and the development of a corresponding symbolic database when...

  • Article
  • Open Access
12 Citations
2,847 Views
13 Pages

30 October 2021

A design method for a broadband and wide-angle metamaterial absorber is proposed based on optimal tiling of rhombus carbon pixels on and implantation of metal cylinders inside an acrylic substrate for which the backside is blocked by the perfect cond...

  • Article
  • Open Access
7 Citations
5,367 Views
37 Pages

Insights into the Effects of Tile Size and Tile Overlap Levels on Semantic Segmentation Models Trained for Road Surface Area Extraction from Aerial Orthophotography

  • Calimanut-Ionut Cira,
  • Miguel-Ángel Manso-Callejo,
  • Ramon Alcarria,
  • Teresa Iturrioz and
  • José-Juan Arranz-Justel

12 August 2024

Studies addressing the supervised extraction of geospatial elements from aerial imagery with semantic segmentation operations (including road surface areas) commonly feature tile sizes varying from 256 × 256 pixels to 1024 × 1024 pixels w...

  • Article
  • Open Access
6 Citations
5,658 Views
37 Pages

Impact of Tile Size and Tile Overlap on the Prediction Performance of Convolutional Neural Networks Trained for Road Classification

  • Calimanut-Ionut Cira,
  • Miguel-Ángel Manso-Callejo,
  • Naoto Yokoya,
  • Tudor Sălăgean and
  • Ana-Cornelia Badea

31 July 2024

Popular geo-computer vision works make use of aerial imagery, with sizes ranging from 64 × 64 to 1024 × 1024 pixels without any overlap, although the learning process of deep learning models can be affected by the reduced semantic context...

  • Article
  • Open Access
5 Citations
7,596 Views
14 Pages

The use of recycled aggregate in new concrete has often been limited due to concerns over their quality and structural performance. This research aims to investigate the physical properties of recycled roof tile aggregate and its suitability for conc...

  • Article
  • Open Access
7 Citations
3,473 Views
16 Pages

Voronoi Tessellations and the Shannon Entropy of the Pentagonal Tilings

  • Edward Bormashenko,
  • Irina Legchenkova,
  • Mark Frenkel,
  • Nir Shvalb and
  • Shraga Shoval

2 January 2023

We used the complete set of convex pentagons to enable filing the plane without any overlaps or gaps (including the Marjorie Rice tiles) as generators of Voronoi tessellations. Shannon entropy of the tessellations was calculated. Some of the basic mo...

  • Article
  • Open Access
7 Citations
4,392 Views
23 Pages

A Tale of Two Tiles: Characterization of Floor Tiles from the Nineteenth-Century Akko Tower Shipwreck (Israel)

  • Alexandra Inberg,
  • Dana Ashkenazi,
  • Yishai Feldman,
  • Omri Dvir and
  • Deborah Cvikel

14 November 2020

Fragments of decorated floor tiles were retrieved from the Akko Tower shipwreck, Israel. Most tiles were made of bright brown fired clay with a white glaze decorated with colored stenciled motifs (Type A); and others consisted of a red-brown fired cl...

  • Article
  • Open Access
8 Citations
4,145 Views
15 Pages

Equiauxetic Hinged Archimedean Tilings

  • Tibor Tarnai,
  • Patrick W. Fowler,
  • Simon D. Guest and
  • Flórián Kovács

25 January 2022

There is increasing interest in two-dimensional and quasi-two-dimensional materials and metamaterials for applications in chemistry, physics and engineering. Some of these applications are driven by the possible auxetic properties of such materials....

  • Article
  • Open Access
3 Citations
3,211 Views
22 Pages

Tile Delamination on Façades of Tall Buildings

  • Michael Yit Lin Chew,
  • W. K. U. R. M. K. P. K. Samarakoon and
  • Ashan Senel Asmone

25 March 2025

Tile delamination on the façades of tall buildings poses significant concerns for public safety worldwide. This study investigates the underlying causes of tile delamination and their linkages with other prevalent façade defects in orde...

  • Article
  • Open Access
10 Citations
4,780 Views
11 Pages

Validation of Antibacterial Systems for Sustainable Ceramic Tiles

  • Valeria La Torre,
  • Elisa Rambaldi,
  • Giulia Masi,
  • Silvia Nici,
  • Daniele Ghezzi,
  • Martina Cappelletti and
  • Maria Chiara Bignozzi

19 November 2021

Ceramic tiles are bacteriostatic materials; however, the COVID-19 emergency has pushed tile producers to improve surfaces’ antibacterial properties. The aim of this work was to validate a silver-based antibacterial treatment applied to porcelain ston...

  • Article
  • Open Access
1 Citations
2,062 Views
14 Pages

16 April 2024

In this study, verification was conducted through experiments to identify problems caused by traditional attachment methods in order to highlight the need for a suitable attachment method for new tile types according to changes in materials, producti...

  • Article
  • Open Access
3 Citations
6,919 Views
13 Pages

Recycling Cigarette Butts in Ceramic Tiles

  • Qibin Yuan,
  • Abbas Mohajerani,
  • Adrian Kristoforus,
  • Halenur Kurmus,
  • Urmila Chowdhury,
  • Dilan Robert,
  • Biplob Pramanik and
  • Phuong Tran

28 December 2021

Cigarettes are one of the favoured commodities on our planet. However, the annual consumption of 5.7 trillion cigarettes and 75% littering rate results in cigarette butts (CBs) being one of the most critical environmental issues. The leachate of heav...

  • Article
  • Open Access
5 Citations
3,837 Views
12 Pages

Laser Microdrilling of Slate Tiles

  • Joaquín Penide,
  • Antonio Riveiro,
  • Ramón Soto,
  • Mohamed Boutinguiza,
  • Felipe Arias-Gonzalez,
  • Jesús del Val,
  • Rafael Comesaña,
  • Fernando Lusquiños,
  • Félix Quintero and
  • Juan Pou

28 January 2019

Slate is a natural rock usually used in roofs, façades, and for tiling. In spite of this broad use, the production process of slate tiles requires substantial improvements. An important quantity of slate from the quarry is wasted during the ma...

  • Article
  • Open Access
1,343 Views
13 Pages

Modelling of Tiled Grating Arrangement Efficiency

  • Haritha Vijayakumar Sheela,
  • Gabor Horváth and
  • Miklós Füle

15 August 2025

The precise alignment of individual diffraction grating units within a tiled grating assembly (TGA) is essential for enhancing the quality of optical throughput and overall functional performance of such kinds of optical systems. This study presents...

  • Article
  • Open Access
3 Citations
7,242 Views
16 Pages

Quasicrystal Tilings in Three Dimensions and Their Empires

  • Dugan Hammock,
  • Fang Fang and
  • Klee Irwin

20 September 2018

The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles). We review the projection met...

  • Article
  • Open Access
3 Citations
2,952 Views
17 Pages

17 March 2022

Most of the perforated tile flow CFD models in the literature so far assume the air velocity coming out of the tile openings (pores) is uniform. However, in typical applications, such as data centers and indoor environments, perforated tile or diffus...

  • Article
  • Open Access
6 Citations
6,628 Views
24 Pages

Polyominoes and Polyiamonds as Fundamental Domains of Isohedral Tilings with Rotational Symmetry

  • Hiroshi Fukuda,
  • Chiaki Kanomata,
  • Nobuaki Mutoh,
  • Gisaku Nakamura and
  • Doris Schattschneider

12 December 2011

We describe computer algorithms that produce the complete set of isohedral tilings by n-omino or n-iamond tiles in which the tiles are fundamental domains and the tilings have 3-, 4-, or 6-fold rotational symmetry. The symmetry groups of such tilings...

  • Article
  • Open Access
6 Citations
4,834 Views
15 Pages

HexTile: A Hexagonal DGGS-Based Map Tile Algorithm for Visualizing Big Remote Sensing Data in Spark

  • Xiaochuang Yao,
  • Guojiang Yu,
  • Guoqing Li,
  • Shuai Yan,
  • Long Zhao and
  • Dehai Zhu

The advent of the era of big remote sensing data has transformed traditional data management and analysis models, among which visualization analysis has gradually become an effective method, and map tiles for remote sensing data have always played an...

  • Article
  • Open Access
1 Citations
2,909 Views
9 Pages

The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at the LHC. This sampling device is made of steel plates acting as absorber and scintillating tiles as active medium. The wavelength-shifting fibers collect th...

  • Article
  • Open Access
2 Citations
2,038 Views
12 Pages

Experimental Behavior of Thin-Tile Masonry under Uniaxial Compression. Multi-Leaf Case Study

  • Joan Llorens,
  • Miquel Àngel Chamorro,
  • Joan Fontàs,
  • Manuel Alcalà,
  • Marc Delgado-Aguilar,
  • Fernando Julián and
  • Miquel Llorens

24 May 2021

In this study, experimental analysis on the compressive strength of multi-leaf thin-tile masonry is presented. A compressive strength test was carried out on thin-tile, mortar and 48 specimens with two- and three-leaf thin-tile masonry. The results o...

  • Article
  • Open Access
3 Citations
1,471 Views
20 Pages

Understanding the Carbon Footprint of Tile Transfer for Web Maps

  • Guillaume Touya,
  • Azelle Courtial,
  • Jérémy Kalsron,
  • Justin Berli,
  • Bérénice Le Mao and
  • Laura Wenclik

As web maps are now extensively used by billions of users, the energy consumption of these maps is not marginal anymore. Green cartography seeks to reduce the energy consumption of maps to promote more sustainable digital tools. To reduce energy cons...

  • Article
  • Open Access
3 Citations
2,692 Views
19 Pages

Tiles from Aosta: A Peculiar Glaze Roof Covering

  • Eleonora Balliana,
  • Eugénie Marie Claudine Caveri,
  • Laura Falchi and
  • Elisabetta Zendri

14 August 2023

The 18th century roof tiles from the “Casa delle vigne”, located in the Aosta region (north-east Italy), were investigated as an example of a peculiar historical roof covering: ceramic tiles with a lead-based glaze finishing to waterproof...

  • Article
  • Open Access
2 Citations
2,161 Views
14 Pages

3D Tiled Code Generation for Nussinov’s Algorithm

  • Włodzimierz Bielecki,
  • Piotr Błaszyński and
  • Marek Pałkowski

9 June 2022

Current state-of-the-art parallel codes used to calculate the maximum number of pairs for a given RNA sequence by means of Nussinov’s algorithm do not allow for achieving speedup close up to the number of the processors used for execution of th...

  • Review
  • Open Access
6 Citations
4,534 Views
14 Pages

11 August 2023

This paper begins with an introduction to porcelain tiles. A review of the major scientific and technological features of mullite-based porcelain tiles (MPTs) and anorthite-based porcelain tiles (APTs), focusing primarily on the raw material, process...

  • Article
  • Open Access
14 Citations
4,532 Views
14 Pages

18 April 2019

This paper presents different types of photovoltaic (PV) roof tiles integrating PV cells with roof covering. Selected elastic photovoltaic roof tiles were characterised for their material and electrical characteristics. Practical aspects of using PV...

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