Results 101 to 110 of about 1,159,790 (329)

Topological Signature of 19th Century Novelists: Persistent Homology in Text Mining

Big Data and Cognitive Computing, 2018
Topological Data Analysis (TDA) refers to a collection of methods that find the structure of shapes in data. Although recently, TDA methods have been used in many areas of data mining, it has not been widely applied to text mining tasks.
Shafie Gholizadeh, Armin Seyeditabari, Wlodek Zadrozny   +2 more
doaj   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Persistent geometry-topology descriptor for porous structure retrieval based on Heat Kernel Signature

Graphical Models
Porous structures are essential in a variety of fields such as materials science and chemistry. To retrieve porous materials efficiently, novel descriptors are required to quantify the geometric and topological features. In this paper, we present a novel
Peisheng Zhuo, Zitong He, Hongwei Lin
doaj   +1 more source

Atomic-scale visualization of quasiparticle interference on a type-II Weyl semimetal surface

, 2016
We combine quasiparticle interference simulation (theory) and atomic resolution scanning tunneling spectro-microscopy (experiment) to visualize the interference patterns on a type-II Weyl semimetal Mo$_{x}$W$_{1-x}$Te$_2$ for the first time.
Alidoust, Nasser, Bansil, Arun, Belopolski, Ilya, Bian, Guang, Chang, Guoqing, Chang, Tay-Rong, Hasan, M. Zahid, Jeng, Horng-Tay, Jia, Shuang, Lin, Hsin, Lu, Hong, Sanchez, Daniel S., Song, Fengqi, Wang, Guangqiang, Xu, Su-Yang, Yao, Nan, Zhang, Songtian, Zheng, Hao   +17 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Probing the hollowing transition of a shell-shaped Bose-Einstein condensate with collective excitation

Physical Review Research
We investigate the hollowing transition of a shell-shaped Bose-Einstein condensate using collective excitations. The shell is created using an immiscible dual-species Bose-Einstein condensate mixture, with its hollowness controlled by tuning the ...
Zerong Huang, Kai Yuen Lee, Chun Kit Wong, Liyuan Qiu, Bo Yang, Yangqian Yan, Dajun Wang   +6 more
doaj   +1 more source

Simple generalizations of Anti-de Sitter space-time

, 2010
We consider new cosmological solutions which generalize the cosmological patch of the Anti-de Sitter (AdS) space-time, allowing for fluids with equations of state such that $w\neq -1$. We use them to derive the associated full manifolds.
Ali Mozaffari, Carroll S B, Gibbons G W, Gibbons G W Warnick C M, João Magueijo, Maldacena J, Townsend P K, Vikman A, Witten E   +8 more
core   +2 more sources

Reconfigurable 3D Magnetic Nanoarchitectures

Advanced Functional Materials, EarlyView.
This experimental study confirms that 3D magnetic tetrapods grown by focused electron beam‐induced deposition exhibit sequential, controllable magnetization reversal in the individual nanowire legs. The magnetic state of the nanoarchitecture can be controlled individually, on‐demand, through a variation of the direction and magnitude of the applied ...
Sabri Koraltan, Fabrizio Porrati, Robert Kraft, Sven Barth, Markus Weigand, Claas Abert, Dieter Suess, Michael Huth, Sebastian Wintz   +8 more
wiley   +1 more source

Random Generation Topology Coding Technique in Asymmetric Topology Encryption

Mathematics
The security of traditional public key cryptography algorithms depends on the difficulty of the underlying mathematical problems. Asymmetric topological encryption is a graph-dependent encryption algorithm produced to resist attacks by quantum computers ...
Jing Su, Bing Yao
doaj   +1 more source

Profinite algebras and affine boundedness

, 2016
We prove a characterization of profinite algebras, i.e., topological algebras that are isomorphic to a projective limit of finite discrete algebras. In general profiniteness concerns both the topological and algebraic characteristics of a topological ...
Schneider, Friedrich Martin, Zumbrägel, Jens   +1 more
core   +1 more source