Results 301 to 310 of about 3,661,265 (345)

Driving Operational Excellence: Cost Savings and Performance Optimization Through Tripping and Connection Time Optimization

Day 2 Tue, February 13, 2024
Achieving operational excellence in the drilling industry is crucial for cost savings and improved efficiency. This abstract highlights the significance of tripping and connection time optimization through a real-time data analytics approach and ...
H. Gamal, Said Albahri, H. Essa, Mayank Srivastava, Noor Alghamdi, Wahid Shaikh   +5 more
semanticscholar   +1 more source

Pseudodifferential Operators and Linear Connections

Proceedings of the London Mathematical Society, 1997
The aim of the paper is to construct a calculus of pseudodifferential operators (PDOs) on a smooth manifold \(M\) without using local coordinate systems. Instead we deal with linear connections \(\Gamma\) of \(M\). The fact that a linear connection \(\Gamma\) is a global object enables one to associate with a PDO its full symbol, which is a function on
openaire   +1 more source

Matrix Operations Induced by Network Connections

SIAM Journal on Control, 1975
The interconnection of two electrical networks is used to define an operation, called the router sum, on the corresponding impedance matrices. For the special case of the series connection, the router sum is the ordinary matrix sum ; for the parallel connection, the parallel sum is obtained [3].
Anderson, William N. jun., Duffin, Richard J., Trapp, George E.   +2 more
openaire   +1 more source

Operators with connected spectrum + compact operators = strongly irreducible operators

Science in China Series A: Mathematics, 1999
Let \(L(H)\) be the algebra of all bounded linear operators acting on a complex, separable, infinite-dimensional Hilbert space \(H\). An operator \(T\in L(H)\) is said to be strongly irreducible if it does not commute with any nontrivial idempotents. It is proved that each operator \(T\in L(H)\) with connected spectrum can be represented as the sum of ...
Jiang, Chunlan, Ji, Youqing
openaire   +2 more sources

Using Social Behavior of Beetles to Establish a Computational Model for Operational Management

IEEE Transactions on Computational Social Systems, 2020
In this article, we computationally model the social behavior of beetles and apply it to the tracking control of manipulators. The beetles demonstrate excellent skills to forage food in a previously unknown environment by merely using their olfactory ...
A. Khan, Xinwei Cao, Shuai Li, Chunbo Luo   +3 more
semanticscholar   +1 more source

Operator-valued connections, Lie connections, and Gauge field theory

International Journal of Theoretical Physics, 1984
This paper proposes a generalization of the gauge theories that are based on connections with values in a Lie algebra. This objective is attained as follows. Let \(M_ n\) be the base space of the independent variables, and \(R^ N\) the range space of the state variables.
openaire   +1 more source

Making Renewables Work: Operational Practices and Future Challenges for Renewable Energy as a Major Power Source in Japan

IEEE Power and Energy Magazine, 2020
Japan has been experiencing a rapid deployment of photovoltaics (PVs) since the Feed-In Tariff (FIT) Scheme for Renewable Energy was launched in July 2012 . The increasing penetration levels of variable renewable generation, especially PVs and wind, have
K. Ogimoto, Hiroshi Wani
semanticscholar   +1 more source

Operational Activity and Connections

2019
This chapter sheds light on the operational activities of “terrorist asylum-seekers” in Europe, as well as the nature of connections to foreign terrorist organizations (FTOs) and involvement in crime. Although connections are found to more than a dozen FTOs, the majority are linked to ISIS.
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Influence of transformer connections on operation

Proceedings of the American Institute of Electrical Engineers, 1914
In this paper the relative advantages and disadvantages in operation of the more important three-phase transformer connections are discussed. Three conditions of operation are given: First, normal; second, operation of a bank with one phase disabled; third, effect of line grounds on operation.
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Toeplitz operators on connected domains

Science in China Series A, 2006
The main result of the paper provides a Fredholm index formula for Toeplitz operators with continuous symbols on finite connected domains in \({\mathbb C}\). In addition, the cohomology groups of the Toeplitz algebras on general connected domains are discussed, and the essential spectra of Toeplitz operators with \(QC\) symbols (on bounded, open ...
openaire   +2 more sources