Results 141 to 150 of about 14,500 (306)

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

Geological 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, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

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

IEEE 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, Hung-Ching Lee, Jheng-Ruei Jhih   +2 more
doaj   +1 more source

Double-diffusive interleaving in baroclinic ocean fronts.

, 2000
Thermohaline intrusions are formed by lateral interleaving motions across ocean fronts. Interleaving is thought to be driven by buoyancy forces arising from fluxes of heat and salt by double diffusion (i.e., salt fingering or diffusive convection).
May, Brian Douglas.
core  

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

InfoScience, 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, Tongtong Xuan, Guanhua Ren, Ting Gong, Kunjie Song, Jiaxin Duan, Huili Li, Rong‐Jun Xie   +7 more
wiley   +1 more source

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

Mathematics
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, Abdulrahman Alduraibi   +1 more
doaj   +1 more source

Antierror systems with interleaving

, 2010
This work involves in anti-error coding systems with interleaving. At first is given summary of high-frequency use error correction codes. Below there are described two basic techniques of interleaving and their confrontation.
Pacher, Jakub
core  

Interleaving Phase Shifters for Critical-Mode Boost PFC

, 2014
[[abstract]]Interleaving control schemes are widely used in converter applications. Merits of such control methods are in reducing input/output current or voltage ripples and volume, and increasing the processed power capacity of converters.
Jiun-Ren Tsai;Tsai-Fu Wu;Chang-Yu Wu;Yaow-Ming Chen;Ming-Chuan Lee
core   +1 more source

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

Journal 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

Cross‐Vendor Validation of Proton Density Fat Fraction and T1 Mapping Using a Combined Proton Density Fat Fraction—T1 Phantom

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background In chronic liver disease, fat and fibroinflammatory changes often coexist. However, their biomarkers, proton density fat fraction (PDFF) and T1, are typically assessed separately. Their reproducibility under mutual confounding remains unclear.
Jitka Starekova, Sebastian Weingärtner, David R. Rutkowski, Garrett C. Fullerton, Won C. Bae, Hung P. Do, Ananth J. Madhuranthakam, Vadim Malis, Sheng Qing Lin, Suraj D. Serai, Takeshi Yokoo, Scott B. Reeder, Jean H. Brittain, Diego Hernando   +13 more
wiley   +1 more source

Characterization of Pulmonary Functional Abnormalities in Systemic Sclerosis Using Xenon MRI

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Xenon MRI is increasingly used to evaluate patients with interstitial lung disease (ILD) and pulmonary hypertension (PH), both of which are common manifestations of systemic sclerosis (SSc). As such, Xe‐MRI may be suited to interrogate lung function impairment in SSc.
Dawson Shaver, Steven Haworth, Evan Graumann, Bradie Frizzell, David H. Lee, Jiwoong Choi, Chase S. Hall, Scott M. Matson, Mark Hamblin, Mario Castro, Paul S. Schmidt, Peter J. Niedbalski   +11 more
wiley   +1 more source