Results 41 to 50 of about 113,812 (347)

Windowing Design and Performance Assessment for Mitigation of Spectrum Leakage [PDF]

open access: yesE3S Web of Conferences, 2019
This paper investigates the windowing design and performance assessment for mitigation of spectral leakage. A pretreatment method to reduce the spectral leakage is developed.
Jwo Dah-Jing, Wu I-Hua, Chang Yi
doaj   +1 more source

The Treatment of Window Problems by Transform Methods

open access: yesZeitschrift für Analysis und ihre Anwendungen, 1993
The aim of this paper is to consider a special class of mixed boundary value problems, the so-called window problems. Using suitable transforms we derive singular integral equations. These methods lend themselves to discover how singularities arise. They show and allow a close connection between analytical methods and numerical analysis.
Sprößig, Wolfgang, Venturino, E.
openaire   +2 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Evaluation of Fourier transform estimation schemes of multidimensional signals using random sampling [PDF]

open access: yes, 2012
We consider the estimation of the Fourier transform of multidimensional deterministic signals from a finite number of random samples. First, we consider a scenario where the sampling instants are taken from a continuous-time observation window.
Al-Ani, M., Tarczynski, A.
core   +1 more source

Area-Efficient Short-Time Fourier Transform Processor for Time–Frequency Analysis of Non-Stationary Signals

open access: yesApplied Sciences, 2020
In this paper, we propose an area-efficient short-time Fourier transform (STFT) processor that can perform time–frequency analysis of non-stationary signals in real time, which is essential for voice or radar-signal processing systems.
Hohyub Jeon   +3 more
doaj   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau   +8 more
wiley   +1 more source

The Time-Frequency Resolution of Short Time Fourier Transform Based on Multi-Window Functions [PDF]

open access: yes, 2011
The short-time Fourier transform has the disadvantage that is does not localize time and frequency phenomena very well. Instead the time-frequency information is scattered which depends on the length of the window.
Li Hua Wang   +3 more
core   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska   +13 more
wiley   +1 more source

Best rational function approximation to Laplace transform inversion using a window function [PDF]

open access: yes, 1976
The best rational function approximation for Laplace transform inversion due to Longman is modified by the introduction of an appropriate “window” function.
Sidi, Avram
core   +1 more source

Accurate Analysis of Multi-Mode Interferometric Optical Fiber Sensor

open access: yesPhotonic Sensors, 2023
In view of the problem that the sensing characteristics of the multi-mode interferometric fiber sensors cannot be accurately analyzed, an analysis method based on the fast Fourier transform (FFT) and inverse fast Fourier transform (IFFT) is proposed and ...
Lijun Li   +3 more
doaj   +1 more source

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