Results 1 to 10 of about 912,182 (324)

Dual Wavelet Frame Transforms on Manifolds and Graphs [PDF]

open access: goldJournal of Mathematics, 2019
In this paper, we consider the dual wavelet frames in both continuum setting, i.e., on manifolds, and discrete setting, i.e., on graphs. Firstly, we give sufficient conditions for the existence of dual wavelet frames on manifolds by their corresponding ...
Lihong Cui   +3 more
doaj   +2 more sources

Duals of Some Constructed $*$-Frames by Equivalent $*$-Frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
Hilbert frames theory have been extended to frames in Hilbert $C^*$-modules. The paper introduces equivalent $*$-frames and presents ordinary duals of a constructed $*$-frame by an adjointable and invertible operator.
Azadeh Alijani
doaj   +2 more sources

Design of LTE/Sub-6 GHz Dual-Band Transparent Antenna Using Frame-Structured Metal Mesh Conductive Film [PDF]

open access: goldNanomaterials, 2023
This paper proposes a dual-band transparent antenna using frame-structured metal mesh conductive film (MMCF). The frame-structured metal mesh conductive film is based on the conductive-coated thin film and forms a narrow strip surrounding the edge of the
Yu-Ming Lin   +2 more
doaj   +2 more sources

Supervised dual tight frame learning with deep thresholding network for phase retrieval

open access: goldIET Image Processing, 2022
Data‐driven tight frames are popular for solving imaging inverse problems. However, the imaging quality is limited by the representation ability of single tight frame and thresholds tuned manually.
Baoshun Shi, Qiusheng Lian, Yueming Su
doaj   +2 more sources

Development of 3D-Stacked 1Megapixel Dual-Time-Gated SPAD Image Sensor with Simultaneous Dual Image Output Architecture for Efficient Sensor Fusion [PDF]

open access: yesSensors
Sensor fusion is crucial in numerous imaging and sensing applications. Integrating data from multiple sensors with different field-of-view, resolution, and frame timing poses substantial computational overhead.
Kazuma Chida   +18 more
doaj   +2 more sources

Research on dual-waterway cooling system of high-power-density permanent magnet synchronous machine. [PDF]

open access: yesPLoS ONE
The issue of temperature rise and heat dissipation becomes crucial to enhancing motor performance as permanent magnet synchronous motors (PMSMs) for electric vehicles (EVs) advance toward high power densities and heat load densities. A unique frame-rotor
Yingying Xu   +4 more
doaj   +2 more sources

Introduction of Frame in Tensor Product of $n$-Hilbert Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
We study the concept of frame in tensor product of  $n$-Hilbert spaces as tensor product of  $n$-Hilbert spaces is again an  $n$-Hilbert space. We generalize some of the known results about bases to frames in this new Hilbert space.
Prasenjit Ghosh, Tapas Samanta
doaj   +1 more source

Gabor Dual Frames with Characteristic Function Window [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
The duals of Gabor frames have an essential role in reconstruction of signals. In this paper we find a necessary and sufficient  condition for two Gabor systems $\left(\chi_{\left[c_1,d_1\right)},a,b\right)$ and $\left(\chi_{\left[c_2,d_2\right)},a,b ...
Mohammad Ali Hasankhani Fard
doaj   +1 more source

Some results on frames by pre-frame operators in Q-Hilbert spaces

open access: yesAIMS Mathematics, 2023
Quaternionic Hilbert (Q-Hilbert) spaces are frequently used in applied physical sciences and especially in quantum physics. In order to solve some problems of many nonlinear physical systems, the frame theory of Q-Hilbert spaces was studied.
Yan Ling Fu , Wei Zhang
doaj   +1 more source

E‌V‌A‌L‌U‌A‌T‌I‌O‌N O‌F D‌U‌A‌L S‌Y‌S‌T‌E‌M‌S W‌I‌T‌H M‌O‌M‌E‌N‌T-R‌E‌S‌I‌S‌T‌I‌N‌G F‌R‌A‌M‌E A‌N‌D S‌H‌E‌A‌R L‌I‌N‌K F‌R‌A‌M‌E \ [PDF]

open access: yesمهندسی عمران شریف, 2022
This paper puts forward a new dual system to dissipate energy and presents its numerical studies. Though moment-resisting frames have a good ductility performance, they suffer low stiffness; as a matter of fact, engineers try to increase the stiffness by
F. Mahmoudi, A.R. Rahai, F. Hatami
doaj   +1 more source

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