Results 91 to 100 of about 5,953 (266)

An Effect of Output Capacitor ESL on Hysteretic PLL Controlled Multiphase Buck Converter [PDF]

open access: yesRadioengineering, 2017
This paper provides analysis of output capacitor effects to phase stability of a hysteretic mode controlled buck converter. The hysteretic control method is a simple and fast control technique for switched-mode converters, but the hysteresis control is ...
M. Jelinek, J. Jakovenko
doaj  

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang   +3 more
wiley   +1 more source

MODULAR ERRORS CORRECTION BASED ON COMPOSITE cyclic codes

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The effectiveness evaluation of the proposed method for correction modular and burst errors based on composite and cyclic codes and step encoding and decoding of information is made.
E. G. Makeichik   +2 more
doaj  

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

open access: yesGeological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos   +6 more
wiley   +1 more source

Radiation Environment-Constrained FPGA Reinforcement Technology and Reliability Research Utilizing Error Control Coding

open access: yesIEEE Access
In the radiation work environment of nuclear power plants and similar facilities, radiation can induce Single Event Upsets (SEUs) and even Multiple Bit Upsets (MBUs) in Field-Programmable Gate Arrays (FPGAs) and related devices.
Dongliang Zhang, Wenchen Wu
doaj   +1 more source

Tin‐based perovskite light‐emitting diodes: Progress and perspective

open access: yesInfoScience, EarlyView.
This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai   +7 more
wiley   +1 more source

Fast Digital Cross–Coupled Phase Control to Maintain 180° Interleaving in BCM/DCM Boost PFC

open access: yesIEEE Open Journal of Power Electronics
This paper presents a cross-coupled, closed-loop digital phase control strategy for two-phase interleaved boost power factor correction (PFC) converters operating in boundary conduction mode (BCM) and discontinuous conduction mode (DCM). Implemented on a
Ming-Chang Tsou   +2 more
doaj   +1 more source

Comparing Digital Reduction Guides and Free‐Hand Techniques for Predoctoral Crown Preparation Accuracy

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose/Objectives Insufficient tooth reduction compromises crown longevity and aesthetics. This study aimed to determine whether digitally designed, 3D‐printed reduction guides improved crown preparation accuracy and efficiency for dental students compared to freehand preparation.
Xiaoyue Shi, Shuncong Xu, Chenxuan Wei
wiley   +1 more source

Extremum Seeking Optimization for Ripple Minimization in Multi-Module Power Factor Correction Systems

open access: yesMathematics
In multi-module boost power factor correction (PFC) systems, current ripple is commonly mitigated by applying fixed 180° interleaving between modules; however, this approach relies on matched inductors and ideal symmetry.
Abdulhakeem Alsaleem   +1 more
doaj   +1 more source

Performance of Free‐Running Cardiac and Respiratory Motion‐Resolved Whole‐Heart 5D MRI in Congenital Heart Disease Patients Using a Gadolinium Enhanced Fast‐Interrupted Steady‐State Sequence

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The performance of 5D imaging in CHD has been previously demonstrated using ferumoxytol rather than gadolinium. Purpose To evaluate the performance of gadolinium enhanced 5D MRI relative to 2D and 3D MRI in CHD patients. Study Type Retrospective.
Christopher W. Roy   +13 more
wiley   +1 more source

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