Results 61 to 70 of about 1,229,399 (284)

Die epigäische Spinnenzönose (Araneae) auf Schotterbänken der Mittelgebirgsbäche und -flüsse im Rheinischen Schiefergebirge

Arachnologische Mitteilungen, 1997
The spider communities on gravel bars along streams in lower montainous areas of Northern Hess were investigated. Eight streams differently altered by human impact were studied: four small streams without weirs and impoundments, two regulated small ...
Smit, Janna
doaj   +1 more source

Hydrological Object‐Based Flow Direction Model for Constructing a Lake‐Stream Topological System

Water Resources Research, 2023
The topological system of lakes and streams is the basis for deriving a multitude of patterns and processes in hydrology, geomorphology and ecology. Flow direction is key to constructing a lake‐stream topological system.
Fei Zhao, Liyang Xiong, Chuzhi Zhang, Hong Wei, Kai Liu, Guoan Tang   +5 more
doaj   +1 more source

A Semantic Graph-Based Approach for Mining Common Topics From Multiple Asynchronous Text Streams [PDF]

, 2017
In the age of Web 2.0, a substantial amount of unstructured content are distributed through multiple text streams in an asynchronous fashion, which makes it increasingly difficult to glean and distill useful information.
Guo Weiwei, Hofmann Thomas, Li Linlin, Mei Qiaozhu, Tang Jie, Wei Xing, Zhu Xiaojin   +6 more
core   +1 more source

Streaming Representation-Changers [PDF]

, 2004
Unfolds generate data structures, and folds consume them. A hylomorphism is a fold after an unfold, generating then consuming a virtual data structure. A metamorphism is the opposite composition, an unfold after a fold; typically, it will convert from one data representation to another. In general, metamorphisms are less interesting than hylomorphisms:
openaire   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

A foundational architecture for engineering an Afrocentric AI training and renewal platform

Discover Artificial Intelligence
The paper proposes a foundational architectural blueprint for developing and incorporating Artificial Intelligence (AI) models, especially Large Language Models (LLMs), in the socio-technical environment specific to Africa.
Eric Nsarkoh, Ama Branoa Banful, Juliet Arthur, Dickson Marfo Fosu, Prince Dawson Tetteh, Jerry John Kponyo   +5 more
doaj   +1 more source

Adjustment of the electric current in pulsar magnetospheres and origin of subpulse modulation

, 2012
The subpulse modulation of pulsar radio emission goes to prove that the plasma flow in the open field line tube breaks into isolated narrow streams. I propose a model which attributes formation of streams to the process of the electric current adjustment
A. Levinson, A. Muslimov, A.A. Deshpande, A.G. Muslimov, A.K. Harding, A.K. Harding, A.M. Beloborodov, A.N. Timokhin, A.N. Timokhin, B. Zhang, C.D. Dermer, D. Mitra, F.C. Michel, G.A.E. Wright, G.R. Blumenthal, H.-K. Chang, I. Contopoulos, I.A. Grenier, J. Gil, J. Gil, J.A. Hibschman, J.A. Hibschman, J.K. Daugherty, J.M. Rankin, J.M. Rankin, J.M. Rankin, M.A. Ruderman, N.S. Kardashëv, P. Goldreich, P. Weltevrede, P. Weltevrede, P.N. Arendt Jr., Q. Luo, Q. Luo, R.L. Ingraham, S.J. Sturner, S.J. Sturner, W. Kundt, X.-N. Bai, X.Y. Xia, Y. Lyubarsky, Y.E. Lyubarskij, Yuri Lyubarsky, Z. Medin   +43 more
core   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Rational streams coalgebraically [PDF]

Logical Methods in Computer Science, 2008
We study rational streams (over a field) from a coalgebraic perspective. Exploiting the finality of the set of streams, we present an elementary and uniform proof of the equivalence of four notions of representability of rational streams: by finite ...
J. J. M. M. Rutten
doaj   +1 more source