Results 51 to 60 of about 27,130 (290)

General transfer function of a compound optical system under linearity conditions in the Fresnel regime

open access: yes, 1991
© 2005 COPYRIGHT SPIE--The International Society for Optical Engineering.A systematic procedure for calculating the general transfer function of a cascaded linear optical system working under the Fresnel regime is presented.
Calvo Padilla, María Luisa   +1 more
core   +1 more source

ADDED RESISTANCE IN WAVES OF INTACT AND DAMAGED SHIP IN THE ADRIATIC SEA

open access: yesBrodogradnja, 2015
In this paper the ship added resistance in regular head waves and at different sea states in a certain frequency range at different forward speeds was calculated. Calculations were conducted using hydrodynamic software.
Ivana Martić   +2 more
doaj  

EVALUATION OF QUALITY INDICATORS OF FUNCTIONING CYBER PROTECTION MANAGEMENT SYSTEMS OF INFORMATION SYSTEMS

open access: yesКомпютерні системи та інформаційні технології, 2022
Evidence of the complexity of the cybersecurity problem is the rapid increase in the number of information security breaches and losses on cybersecurity threats combined with an increase in the average loss from each of the breaches.
Volodymyr KHOROSHKO   +2 more
doaj   +1 more source

Multimodal Soft Surgical Robots Enabled by Eco‐Degradable, Sterilizable Polymers and Transient Electronics

open access: yesAdvanced Functional Materials, EarlyView.
A compostable PGS soft surgical robot with interchangeable modules integrates transient Mo tactile and Si thermal sensors for dual feedback. The device preserves its function after clinical‐grade sterilization, demonstrates stable actuation and cardiac tissue grasping with real‐time in vivo pulsatile monitoring, and biodegrades post‐use with soil‐safe, 
Minseong Chae   +27 more
wiley   +1 more source

Transfer function analysis of forecasting induced bullwhip in supply chains

open access: yes, 2002
The present paper analyses the bullwhip problem generated by exponential smoothing algorithms in both “stand alone” passing-on-orders mode, and within inventory controlled feedback systems.
Dejonckheere, J.   +3 more
core   +1 more source

Research of Temperature Rise in the Lithium-Ion Traction Battery of Engineering Vehicles

open access: yes机车电传动, 2021
In order to study the temperature characteristics of the power battery of engineering vehicles, the heating power of battery at different SOC and charge-discharge rate was obtained by performing quadratic function fitting on the data measured at the ...
Zhihong ZHANG, Lianfeng LI, Hua XU
doaj  

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

Stability Analysis of Control Systems With First-Order Reset Elements, a Frequency-Domain Approach

open access: yesIEEE Access
Reset control systems (RCSs) can achieve performance beyond that of conventional linear time-invariant (LTI) controllers, while also allowing analysis directly in the frequency domain using measured frequency response functions (FRFs).
Ali Hosseini, Hassan HosseinNia
doaj   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

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