Results 31 to 40 of about 1,391,576 (311)

DEVELOPMENT OF FORMS OF STRUCTURAL MATHEMATICAL MODELING IN DYNAMICS OF MECHANICAL OSCILLATION SYSTEMS: IMPEDANCE AND POSSIBLE VARIANTS OF APPROACH

Proceedings of the Mongolian Academy of Sciences, 2017
Offering method of transformation of mathematical models of oscillation systems based on using of structural schemes. Structural analogs of mathematical models used for creature of variants of transfer functions of initial mechanical systems.
S V Eliseev, V B Kashuba, S K Kargapoltsev, A V Nikolaev   +3 more
doaj   +1 more source

Bidirectional Step-Up/Step-Down DC-DC Converter with Magnetically Coupled Coils

Communications, 2013
The paper is focused on bidirectional up/down DC-DC converter with magnetically coupled coils (MCC), which can be utilized as a part of power semiconductor system in traction, automotive, or industrial applications like renewable energy sources. Proposed
Michal Frivaldsky, Branislav Dobrucky, Giacomo Scelba, Pavol Spanik, Peter Drgona   +4 more
doaj   +1 more source

Ivabradine increases the high frequency gain ratio in the vagal heart rate transfer function via an interaction with muscarinic potassium channels

Physiological Reports, 2021
Muscarinic potassium channels (IK,ACh) are thought to contribute to the high frequency (HF) dynamic heart rate (HR) response to vagal nerve stimulation (VNS) because they act faster than the pathway mediated by hyperpolarization‐activated cyclic ...
Toru Kawada, Hiromi Yamamoto, Tadayoshi Miyamoto, Yohsuke Hayama, Meihua Li, Can Zheng, Kazunori Uemura, Masaru Sugimachi, Keita Saku   +8 more
doaj   +1 more source

On the estimation of transfer functions

Automatica, 1985
This paper treats the close conceptual relationships between the three basic approaches to estimation of transfer functions of linear systems: frequency analysis, spectral analysis and time domain prediction error methods. The emphasis of this paper is put on the empirical transfer function estimate (ETFE), which is a direct extension of the frequency ...
openaire   +1 more source

A Novel U-Shaped Transfer Function for Binary Particle Swarm Optimisation [PDF]

, 2020
Particle swarm optimisation (PSO), one of the most elegant algorithms in the field of nature-inspired optimisation, has many variants for solving different types of problems.
Mirjalili, S, Seyedali Mirjalili, Hongyu Zhang, Stephan Chalup, Seyedehzahra Mirjalili, Noman, N, Nasimul Noman, Chalup, S, Zhang, H   +8 more
core   +1 more source

Localization and Diagnosis of Short-Circuit Faults in Transformer Windings Injected by Damped Oscillatory Wave

Energies
Power transformers, as critical components in regional power distribution and transmission systems, require early fault detection to ensure system reliability.
Chengbo Hu, Xueqiong Zhu, Yongling Lu, Ziquan Liu, Zhen Wang, Zhengyu Liu, Kangyong Yin   +6 more
doaj   +1 more source

Formulation and experimental validation of a frequency transfer function of a rotor system with both an open crack and anisotropic support stiffness

Nihon Kikai Gakkai ronbunshu, 2018
This paper proposes a transfer function of rotating shaft system considering both an open crack and anisotropy in bearing support stiffness, which are both fundamental characteristics often observed in the rotating machinery.
Tsuyoshi INOUE, Yixun NIU, Masahiko AKI, Kentaro TAKAGI, Qiang YAO, Kenta NAKAMOTO, Yoshinori KATO, Shota YABUI   +7 more
doaj   +1 more source

Evaluation of dynamic characteristics of a linear time-varying system

Challenges and Issues of Modern Science
Purpose. The development of methodological support for the construction of an algorithm for calculating the coefficients of the transfer function of the second order link, which is equivalent to a time-varying system in the selected time interval from ...
Volt Avdieiev
doaj   +1 more source

Band extension in digital methods of transfer function determination – signal conditioners asymmetry error corrections [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2014
[b]Abstract[/b]. In the paper, the calibrating method for error correction in transfer function determination with the use of DSP has been proposed. The correction limits/eliminates influence of transfer function input/output signal conditioners on the ...
Zbigniew Staroszczyk, Piotr Figoń
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source