Results 61 to 70 of about 180,814 (286)

Complexity of Interlocking Polyominoes [PDF]

open access: yes, 2011
Polyominoes are a subset of polygons which can be constructed from integer-length squares fused at their edges. A system of polygons P is interlocked if no subset of the polygons in P can be removed arbitrarily far away from the rest. It is already known
Abel, Zachary, Dhawan, Sidharth
core  

Accuracy of Diagnostic Codes and Algorithms Used to Identify Rheumatoid Arthritis and Juvenile Idiopathic Arthritis in Administrative Claims and Electronic Health Records: Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective This systematic review aimed to assess the diagnostic accuracy of algorithms used to identify rheumatoid arthritis and juvenile idiopathic arthritis in electronic health records. Methods We searched Medline, Embase, and Cochrane Central Register for Controlled Trials databases and included studies that validated case definitions against a ...
Constanza Saka‐Herrán   +10 more
wiley   +1 more source

Board Homophily, Board Diversity and Network Centrality

open access: yesProblemy Zarządzania, 2016
The relationships of multiple firms linked by interlocking directors are among classic subjects of studies within the social network approach in organizational research. Interlocking directorates enable exchange of information and resources between two
Michał Zdziarski, Dominika Czerniawska
doaj   +1 more source

An Alternative Approach to the Calculation and Analysis of Connectivity in the World City Network

open access: yes, 2012
Empirical research on world cities often draws on Taylor's (2001) notion of an 'interlocking network model', in which office networks of globalized service firms are assumed to shape the spatialities of urban networks.
Rozenblat C   +4 more
core   +1 more source

Director Reputation, Ceo-Board Power, And The Dynamics Of Board Interlocks [PDF]

open access: yes, 1996
This study advances research on CEO-board relationships, interlocking directorates, and director reputation by examining how contests for intraorganizational power can affect interorganizational ties.
Westphal, J. D., Zajac, E. J.
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Mechanical behaviour of composite structures made of topologically interlocking concrete bricks with soft interfaces

open access: yesMaterials & Design, 2020
In this study, the mechanical responses of an assembly plate made of topologically interlocking concrete bricks with rubber as soft interfaces are investigated.
Anooshe Rezaee Javan   +3 more
doaj   +1 more source

A thermodynamically consistent derivation of a frictional-damage cohesive-zone model with different mode i and mode II fracture energies [PDF]

open access: yes, 2015
The present paper deals with the derivation of an interface model characterized by macroscopic fracture energies which are different in modes I and II, the macroscopic fracture energy being the total energy dissipated per unit of fracture area.
Alfano, G, Sacco, E, Serpieri, R
core   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Effect of Aggregate Gradation on Workability of Hot Mix Asphalt Mixtures

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2007
The ease of hot mix asphalt (HMA) mixture for compacting describes workability of the HMA mixture. This study developed a simple workability index (WI) and applied it to investigate effect of aggregate gradation on workability of HMA mixtures.
Iman Haryanto, Osamu Takahashi
doaj  

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