Results 31 to 40 of about 612 (188)

Comparing Asset Pricing Factor Models under Multivariate t‐Distribution: Evidence from China

Discrete Dynamics in Nature and Society, Volume 2021, Issue 1, 2021., 2021
Factor models provide a cornerstone for understanding financial asset pricing; however, research on China’s stock market risk premia is still limited. Motivated by this, this paper proposes a four‐factor model for China’s stock market that includes a market factor, a size factor, a value factor, and a liquidity factor.
Xi Sun, Yihao Chen, Yulin Chen, Zhusheng Lou, Lingfeng Tao, Yihao Zhang, Junhai Ma   +6 more
wiley   +1 more source

A Novel Multifunction CFOA-Based Inverse Filter

Circuits and Systems, 2011
We present a novel multifunction inverse biquad configuration based on current feedback operational amplifiers (CFOAs) and grounded passive elements. The proposed scheme can be used to realize inverse lowpass, inverse bandpass and inverse highpass filter functions.
Hung-Yu Wang, Sheng-Hsiung Chang, Tzu-Yi Yang, Po-Yang Tsai   +3 more
openaire   +2 more sources

CCII and FPGA Realization: A Multistable Modified Fourth‐Order Autonomous Chua’s Chaotic System with Coexisting Multiple Attractors

Complexity, Volume 2020, Issue 1, 2020., 2020
In this paper, a multistable modified fourth‐order autonomous Chua’s chaotic system is investigated. In addition to the dynamic characteristics of the third‐order Chua’s chaotic system itself, what interests us is that this modified fourth‐order autonomous Chua’s chaotic system has five different types of coexisting attractors: double‐scroll, single ...
Fei Yu, Hui Shen, Li Liu, Zinan Zhang, Yuanyuan Huang, Binyong He, Shuo Cai, Yun Song, Bo Yin, Sichun Du, Quan Xu, Viet-Thanh Pham   +11 more
wiley   +1 more source

The determinants and valuation effects of classification choice on the statement of cash flows [PDF]

, 2017
In this paper we exploit the choice allowed by IFRS regarding the presentation of interest payments on the cash flow statement to answer two related questions: First, whether the classification choice is explained by firm reporting incentives and second,
Charitou, A, Karamanou, I, Kopita, AS
core   +6 more sources

Realization of chaotic oscillator and use in secure communication

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
This scientific study reports on the practical as well as modelling of active hybrid inductor based chaotic oscillators using Current Feedback Amplifier (CFOA) and Op-Amp.
Amrita Rai, Manoj Joshi, Kamal Kishor Upadhyay, Vaibhav Khare, Jyoti, Harshit Shastri, Shreya Goyal   +6 more
doaj   +1 more source

Analytical Synthesis of High-Pass, Band-Pass and Low-Pass Biquadratic Filters and its Quadrature Oscillator Application Using Current-Feedback Operational Amplifiers

IEEE Access, 2021
In this paper, a method of realizing voltage-mode (VM) non-inverting high-pass filter (HPF), band-pass filter (BPF), low-pass filter (LPF), and inverting low-pass filter (ILPF) transfer functions structure with two grounded capacitors and four resistors ...
San-Fu Wang, Hua-Pin Chen, Yitsen Ku, Ming-Xiu Zhong   +3 more
doaj   +1 more source

A Multi-Strategy Improved Catch Fish Optimization Algorithm for Microgrid Scheduling Optimization and Real-World Engineering Applications

Mathematics
Complex engineering optimization problems are typically characterized by high dimensionality, multimodality, and strong constraints, posing significant challenges to traditional swarm intelligence algorithms in terms of convergence speed, solution ...
Xintian Yu, Yi Fang
doaj   +1 more source

High frequency chaotic oscillator design via CFOA based cellular neural network

, 2006
in this paper, a realization of the Cellular Neural Network (CNN) using Current Feedback Operational Amplifier (CFOA) is presented.
Yildirim, FATMA, GÜNAY, ENİS, ALÇI, MUSTAFA, M. Alci, F. Yildirim, E. Gunay   +5 more
core   +1 more source

Single CFOA-based active Negative Group Delay circuits for signal anticipation

Engineering Science and Technology, an International Journal, 2023
The group delay of a signal prior to data monitoring is a crucial consideration in today’s real-time applications, especially for those that involve long sensor arrays or high-order filters.
Onat Baloglu, Oguzhan Cicekoglu, Norbert Herencsar   +2 more
doaj   +1 more source

A Comparative Hybrid Deep Learning Approach for Robust Stator–Rotor Fault Identification in DFIGs Using FFT‐Based Features and CNN–LSTM–Transformer Models Under Nonstationary Wind Turbulence

Engineering Reports, Volume 8, Issue 9, September 2026.
A hybrid CNN–LSTM–Transformer framework with FFT‐based feature extraction enables accurate detection and severity estimation of stator and rotor faults in DFIGs under turbulent conditions, achieving over 94% accuracy for early‐stage fault diagnosis. Fault Diagnosis and Severity Estimation in Wind Turbines.
Mehdi Mohammadian Mehr, Mohsen Saniei, Mahmood Joorabian, Hossein Farzin   +3 more
wiley   +1 more source