Results 21 to 30 of about 1,076,762 (310)

Qualitative motivation with sets and relations

open access: yesFrontiers in Psychology, 2023
In self-determination theory (SDT), multiple conceptual regulations of motivation are posited. These forms of motivation are especially qualitatively viewed by SDT researchers, and there are situations in which combinations of these regulations occur. In
Ali Ünlü
doaj   +1 more source

Hardware Reliability Analysis of a Coal Mine Gas Monitoring System Based on Fuzzy-FTA

open access: yesApplied Sciences, 2021
The hardware reliability of a gas monitoring system was investigated using the fuzzy fault tree analysis method. A fault tree was developed considering the hardware failure of the gas monitoring system as a top event.
Jingtian Xu, Man Yang, Shugang Li
doaj   +1 more source

On the VC-dimension‎, ‎covering and separating properties of the cycle and spanning tree hypergraphs of graphs [PDF]

open access: yesTransactions on Combinatorics, 2022
In this paper‎, ‎we delve into studying some relations between the structure of the cycles and spanning trees of a graph through the lens of its cycle and spanning tree hypergraphs which are hypergraphs with the edge set of the graph as their vertices ...
Alireza Mofidi
doaj   +1 more source

Proof of the MHV vertex expansion for all tree amplitudes in N=4 SYM theory [PDF]

open access: yes, 2008
We prove the MHV vertex expansion for all tree amplitudes of N=4 SYM theory. The proof uses a shift acting on all external momenta, and we show that every N^kMHV tree amplitude falls off as 1/z^k, or faster, for large z under this shift.
A. Brandhuber   +36 more
core   +2 more sources

On the regularization of extremal three-point functions involving giant gravitons

open access: yesPhysics Letters B, 2015
In the AdS5/CFT4 set-up, extremal three-point functions involving two giant 1/2 BPS gravitons and one point-like 1/2 BPS graviton, when calculated using semi-classical string theory methods, match the corresponding three-point functions obtained in the ...
Charlotte Kristjansen   +2 more
doaj   +1 more source

Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data

open access: yesApplied Sciences, 2021
A hydraulic system is a key subsystem of heavy-duty machine tools with a high failure intensity, the failure of which often causes shutdown of production and economic loss in machining. Therefore, it is necessary to implement failure analysis to identify
Shizheng Li   +6 more
doaj   +1 more source

Chiral fermions and gauge-fixing in five-dimensional theories [PDF]

open access: yes, 2001
We study in detail the issue of gauge-fixing in theories with one universal extra dimension, i.e. theories where both bosons and fermions display Kaluza-Klein (KK) excitations.
Papavassiliou, Joannis   +1 more
core   +3 more sources

Multi-decision tree prediction model for coal seam floor water inrush based on cost-sensitive theory

open access: yesGong-kuang zidonghua, 2020
When predicting coal seam floor water inrush, the situation is generally divided into two states: safe state and water inrush state. The state data has non-equilibrium characteristics.
LI Yanmin, ZHOU Chenyang, LI Fenglian
doaj   +1 more source

String field theory and brane superpotentials [PDF]

open access: yes, 2001
I discuss tree-level amplitudes in cubic topological string field theory, showing that a certain family of gauge conditions leads to an A-infty algebra of tree-level string products which define a potential describing the dynamics of physical states ...
Lazaroiu, C. I.
core   +3 more sources

Unfolding of Finite Concurrent Automata [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
We consider recognizable trace rewriting systems with level-regular contexts (RTL). A trace language is level-regular if the set of Foata normal forms of its elements is regular. We prove that the rewriting graph of a RTL is word-automatic.
Alexandre Mansard
doaj   +1 more source

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