Results 21 to 30 of about 1,069,691 (320)

Optimization and Practice for Partition Pressure Relief of Deep Mining Roadway Using Empty-Hole and Deep-Hole Blasting to Weaken Coal

open access: yesGeofluids, 2021
Rockbursts are among the most harmful dynamic disasters, threatening the personnel safety and mine operation. In order to alleviate stress concentration of roadsides and prevent rockbursts, the large-diameter boreholes and deep-hole blasting are employed
Baobao Chen, Changyou Liu, Fengfeng Wu
doaj   +1 more source

Opposing trends of cloud coverage over land and ocean under global warming [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Clouds play a key role in Earth's energy budget and water cycle. Their response to global warming contributes the largest uncertainty to climate prediction.
H. Liu   +3 more
doaj   +1 more source

Optimal binary space partitions for orthogonal objects [PDF]

open access: yesJournal of Algorithms, 1992
Summary: A binary space partition, or BSP, is a scheme for recursively dividing a configuration of objects of hyperplanes until all objects are separated. BSPs are widely used in computer graphics as the underlying data structure for computations such as real-time hidden-surface removal, ray tracing, and solid modeling.
Paterson, Michael S., Yao, F. Frances
openaire   +1 more source

Lattice Partition Multiple Access: A New Method of Downlink Non-Orthogonal Multiuser Transmissions [PDF]

open access: yesGlobal Communications Conference, 2016
In this paper, we propose a new downlink non-orthogonal multiuser superposition transmission scheme for future 5G cellular networks, which we refer to as the lattice partition multiple access (LPMA).
Dong Fang   +5 more
semanticscholar   +1 more source

Orthogonal polynomial method and odd vertices in matrix models [PDF]

open access: yes, 1999
We show how to use the method of orthogonal polynomials for integrating, in the planar approximation, the partition function of one-matrix models with a potential with even or odd vertices, or any combination of them.Comment: 13 pages, 3 Postscript ...
Boulatov D. V., Ettore Minguzzi
core   +3 more sources

Efficient Distortion Mitigation and Partition Reduction in Mapping Global Geodata: Dual Orthogonal Equidistant Cylindrical Projection Approach

open access: yesISPRS International Journal of Geo-Information, 2023
The rapid growth in Earth’s global geospatial data necessitates an efficient system for organizing the data, facilitating data fusion from diverse sources, and promoting interoperability.
Aleksandar Dimitrijević   +2 more
doaj   +1 more source

Partitioning orthogonal polygons into at most 8-vertex pieces, with application to an art gallery theorem [PDF]

open access: yes, 2016
We prove that every simply connected orthogonal polygon of $n$ vertices can be partitioned into $\left\lfloor\frac{3 n +4}{16}\right\rfloor$ (simply connected) orthogonal polygons of at most 8 vertices. It yields a new and shorter proof of the theorem of
Győri, Ervin, Mezei, Tamás Róbert
core   +2 more sources

SYK Model with global symmetries in the double scaling limit

open access: yesJournal of High Energy Physics, 2023
We discuss the double scaling limit of the SYK model with global symmetries. We develop the chord diagram techniques to compute the moments of the Hamiltonian and the two point function in the presence of arbitrary chemical potential.
Prithvi Narayan, T S Swathi
doaj   +1 more source

Spaces of states of the two-dimensional $O(n)$ and Potts models

open access: yesSciPost Physics, 2023
We determine the spaces of states of the two-dimensional $O(n)$ and $Q$-state Potts models with generic parameters $n,Q\in \mathbb{C}$ as representations of their known symmetry algebras.
Jesper Lykke Jacobsen, Sylvain Ribault, Hubert Saleur
doaj   +1 more source

Odd-flavored QCD_3 and Random Matrix Theory [PDF]

open access: yes, 1998
We consider QCD_3 with an odd number of flavors in the mesoscopic scaling region where the field theory finite-volume partition function is equivalent to a random matrix theory partition function.
Akemann   +16 more
core   +2 more sources

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