Results 101 to 110 of about 355,686 (307)

The process of re-designing the geometry curriculum: the case of the Mathematical Association in England in the early twentieth century

, 2011
This paper examines a key period of change in geometry teaching in England. Our focus is the character and nature of the recommendations of the 1902 geometry report of the UK Mathematical Association.
Fujita, Taro, Jones, Keith
core  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Geometry-aware point cloud clustering for spherical-component aggregate modeling

Scientific Reports
This paper proposes a method for obtaining independent mesh models of individual components from a point cloud representing an aggregate. An aggregate consists of a collection of small, similar components, such as individual grapes in a bunch.
Yuta Muramatsu, Syuhei Sato, Kaisei Sakurai   +2 more
doaj   +1 more source

Performance Analysis of Deep Learning-Based Lossy Point Cloud Geometry Compression Coding Solutions

IEEE Access
The quality evaluation of three deep learning-based coding solutions for point cloud geometry, notably ADLPCC, PCC GEO CNNv2, and PCGCv2, is presented. The MPEG G-PCC was used as an anchor. Furthermore, LUT SR, which uses multi-resolution Look-Up tables,
Joao Prazeres, Rafael Rodrigues, Manuela Pereira, Antonio M. G. Pinheiro   +3 more
doaj   +1 more source

Infinite groups with fixed point properties

, 2007
We construct finitely generated groups with strong fixed point properties. Let Xac be the class of Hausdorff spaces of finite covering dimension which are mod–p acyclic for at least one prime p.
G. Arzhantseva, T. Januszkiewicz, Arzhantseva, Goulnara, I. J. Leary, Minasyan, Ashot, A. Minasyan, Bridson, MR, Januszkiewicz, T, J. Świa̧tkowski, Bridson, Martin R., Leary, IJ, Swiatkowski, J, Bridson, Martin Robert, Ian J Leary, Martin R Bridson, ASHOT MINASYAN, JACEK ŚWIA̧TKOWSKI, et al., Januszkiewicz, Tadeusz, Leary, Ian J., Bridson, Martin, Arzhantseva, Goulnara N., Minasyan, A, Swiatkowski, Jacek, Arzhantseva, G, M. R. Bridson   +23 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

A Stochastic Geometry Analysis of Hybrid Cellular-Adhoc CDMA Networks

International Journal of Information and Communication Technology Research, 2011
This paper studies the impact of using multihop wireless adhoc network in conjunction with cellular networks under a probabilistic routing strategy. Our objective is to obtain the outage probability of the twodimensional hybrid CDMA network under path ...
Neda Banivaheb, Keivan Navaie
doaj  

Point cloud geometry compression based on the combination of interlayer residual and IRN concatenated residual

Graphical Models
Point clouds have been attracting more and more attentions due to its capability of representing objects precisely, such as autonomous vehicle navigation, VR/AR, cultural heritage protection, etc.
Meng Huang, Qian Xu, Wenxuan Xu
doaj   +1 more source

THE ROLE OF PROJECTIVE GEOMETRY IN TALIAN EDUCATION AND INSTITUTIONS AT THE END OF THE 19TH CENTURY

Revista de História da Educação Matemática, 2023
At the end of the 19th century, projective geometry was at the basis of most geometric research in Italy, and of much other research work in Europe. Furthermore, through its close connection with descriptive geometry, it seemed particularly responsive to
Marta Menghini
doaj  

Unions of Onions: Preprocessing Imprecise Points for Fast Onion Layer Decomposition

, 2014
Let D be a set of n pairwise disjoint unit disks in the plane. We describe how to build a data structure for D so that for any point set P containing exactly one point from each disk, we can quickly nd the onion decomposition (convex layers) of P.
Sub Computational Geometry, Löffler, Maarten, Mulzer, Wolfgang, Computational Geometry   +3 more
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