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Ceramic Tiles in the Mihrab of Al-Kashef Mosque in Assiut 1226 AH 1811 AD A Comparative Artistic Archaeological Study [PDF]

open access: yesMaǧallaẗ Al-Turāṯ wa Al-Taṣmīm, 2022
:This Research aims to study the Group of Tiles that cover the Mihrab of the Mosque of Prince Muhammad Kashif Bekzadeh in Assiut, those Tiles that embodied a Group of various Motifs that expressed the periods and stages of the development of Ottoman ...
Mamdouh Mohamed Elsayed Hassanein
doaj   +1 more source

Undecidable Translational Tilings with Only Two Tiles, or One Nonabelian Tile [PDF]

open access: yesDiscrete & Computational Geometry, 2023
AbstractWe construct an example of a group$$G = \mathbb {Z}^2 \times G_0$$G=Z2×G0for a finite abelian group $$G_0$$G0, a subsetEof $$G_0$$G0, and two finite subsets$$F_1,F_2$$F1,F2of G, such that it is undecidable in ZFC whether$$\mathbb {Z}^2\times E$$Z2×Ecan be tiled by translations of$$F_1,F_2$$F1,F2.
Rachel Greenfeld, Terence Tao
openaire   +5 more sources

Heating Structure of the Second Half of the XVIII Century (based on the archaeological materials of Tobolsk)

open access: yesАрхеология евразийских степей, 2023
This study deals with description of the furnace structure, studied during archaeological work on the territory of the upper part of one of the oldest towns in Siberia – Tobolsk (founded in 1587).
Natalya P. Turova , Petr G. Danilov
doaj   +1 more source

Results of Archaeological Rescue Excavations at the Site of the Former German Forced Labour Camp KL Jawischowitz, Oświęcim District

open access: yesActa Universitatis Lodziensis: Folia Archaeologica, 2022
The paper presents the results of rescue archaeological excavations carried out at the site of the former German forced labour camp KL Jawischowitz, a sub-camp of KL Auschwitz-Birkenau. It discusses the historical material related to individual phases of
Wojciech Tabaszewski   +1 more
doaj   +1 more source

Golden tilings [PDF]

open access: yesTransactions of the American Mathematical Society, 2012
The authors consider the golden Anosov automorphism \(G_A\) on the torus \(\mathbb{T}^2\), defined in such a way that the ratio of its unstable and stable eigenvalues is the golden number \((1+ \sqrt 5)/2\). They study the space \({\mathcal G}\) of all \(C^{1 + \alpha}\) diffeomorphisms that are topologically conjugate to \(G_A\) and possess an ...
Pinto, Alberto A.   +2 more
openaire   +5 more sources

Shape Tiling [PDF]

open access: yesThe Electronic Journal of Combinatorics, 1996
Given a list $1\times 1, 1\times a, 1\times b, \dots, 1\times c$ of rectangles, with $a,b,\dots,c$ non-negative, when can $1\times{t}$ be tiled by positive and negative copies of rectangles which are similar (uniform scaling) to those in the list? We prove that such a tiling exists iff $t$ is in the field $Q(a,b,\dots,c)$.
Keating, Kevin, King, Jonathan L.
openaire   +2 more sources

Evaluating the Performance of Three Popular Web Mapping Libraries: A Case Study Using Argentina’s Life Quality Index

open access: yesISPRS International Journal of Geo-Information, 2020
Recent Web technologies such as HTML5, JavaScript, and WebGL have enabled powerful and highly dynamic Web mapping applications executing on standard Web browsers.
Alejandro Zunino   +5 more
doaj   +1 more source

Luminescence Dating of Relics in Ancient Cities Provides Absolute Dates for Understanding Human-Land Relationships in Qinghai Lake Basin, Northeastern Tibetan Plateau

open access: yesFrontiers in Earth Science, 2021
The study of ancient city sites provides valuable evidence for understanding human-land relationships. Qinghai Lake Basin, on the northeastern Tibetan Plateau, was a key location for economic and cultural exchanges between East and West in ancient China ...
Manping Sun   +17 more
doaj   +1 more source

Complex tilings [PDF]

open access: yesJournal of Symbolic Logic, 2001
AbstractWe study the minimal complexity of tilings of a plane with a given tile set. We note that every tile set admits either no tiling or some tiling withKolmogorov complexity of its (n×n)-squares. We construct tile sets for which this bound is tight: all (n×n)-squares in all tilings have complexity Ω(n).
Durand, Bruno   +2 more
openaire   +4 more sources

Natural radioactivity content in various building materials of Chennai, Tamil Nadu, India

open access: yesRadiation Protection and Environment, 2022
Natural radioactivity content in different types of building materials obtained from Chennai city has been determined. In this study, the most commonly used building materials such as clay bricks, cement, sediment, tiles, marbles, and granite have been ...
K S Lakshmi   +2 more
doaj   +1 more source

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