Results 11 to 20 of about 11,419 (259)
Non-orthogonal Multiple Access Enabled Scalable Video Multicast in HetNets [PDF]
Jisuanji kexue, 2021 In this paper,a resource management framework is presented for non-orthogonal multiple access (NOMA)-enhanced scalable video coding (SVC) multicast in heterogeneous networks (HetNets).In this framework,radio spectrum slicing for different base stations ...
JI Xiao-xiang, SHEN Hang, BAI Guang-wei
doaj +1 more source
Construction of quaternary quantum error-correcting codes via orthogonal arrays
Frontiers in Physics, 2023 This paper presents a method based on orthogonal arrays of constructing pure quaternary quantum error-correcting codes. As an application of the method, some infinite classes of quantum error-correcting codes with distances 2, 3, and 4 can be obtained ...
Shanqi Pang +6 more
doaj +1 more source
Construction of Binary Quantum Error-Correcting Codes from Orthogonal Array
Entropy, 2022 By using difference schemes, orthogonal partitions and a replacement method, some new methods to construct pure quantum error-correcting codes are provided from orthogonal arrays.
Shanqi Pang, Hanxiao Xu, Mengqian Chen
doaj +1 more source
Quantum Error-Correcting Codes Based on Orthogonal Arrays
Entropy, 2023 In this paper, by using the Hamming distance, we establish a relation between quantum error-correcting codes ((N,K,d+1))s and orthogonal arrays with orthogonal partitions.
Rong Yan +3 more
doaj +1 more source
Orthogonalization of Positive Operator Valued Measures
Comptes Rendus. Mathématique, 2022 We show that a partition of the unity (or POVM) on a Hilbert space that is almost orthogonal is close to an orthogonal POVM in the same von Neumann algebra. This generalizes to infinite dimension previous results in matrix algebras by Kempe–Vidick and Ji–
de la Salle, Mikael
doaj +1 more source
Advances in Civil Engineering, 2022 Based on the soft-soil layer and several practical subway stations projects, the effect of partition wall main parameters on internal force and the deformation of retaining structure was thoroughly investigated via numerical simulation and orthogonal ...
Chunlei Feng +3 more
doaj +1 more source
Geofluids, 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
Optimal binary space partitions for orthogonal objects [PDF]
Journal 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.
Mike Paterson, F. Frances Yao
openaire +2 more sources
Embedded Mean-Field Theory with Block-Orthogonalized Partitioning [PDF]
Journal of Chemical Theory and Computation, 2017 Embedded mean-field theory (EMFT) provides a simple, flexible framework for describing subsystems at different levels of mean-field theory. Subsystems are defined by partitioning a one-particle basis set, with a natural choice being the atomic orbital (AO) basis. Although generally well behaved, EMFT with AO partitioning can exhibit unphysical collapse
Feizhi Ding +2 more
openaire +4 more sources
Opposing trends of cloud coverage over land and ocean under global warming [PDF]
Atmospheric 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