Results 41 to 50 of about 36,271 (246)
Capacitor Voltage Ripple and Harmonics Analysis in MMC
南方能源建设, 2023 [Introduction] The rapid development of VSC-HVDC provides practical support for MMC (Modular Multi-Level Converter) topology. Takes a half bridge MMC converter as an example, the relationship between steady-state capacitor voltage fluctuation, harmonic ...
Kaikai ZOU +4 more
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Advanced Science, EarlyView.This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li +8 more
wiley +1 more source
Advanced Science, EarlyView.A multi‐epitope digital surface‐enhanced Raman spectroscopy framework enables epitope‐resolved immunoprofiling by integrating bispecific antibody fragments with spectrally encoded nanotags. This approach decouples binding events into independent digital channels, allowing structure‐aware antigen analysis.
Jing Wang +4 more
wiley +1 more source
A new approach to open-circuit fault diagnosis of MMC sub-module
Systems Science & Control Engineering, 2020 This paper is concerned with the open-circuit fault diagnosis of MMC sub-module. To estimate the arm current accurately in normal and fault cases, a sliding mode observer is designed based on Lyapunov theory.
Baoye Song, Gaoru Qi, Lin Xu
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Advanced Science, EarlyView.Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen +9 more
wiley +1 more source
Clinico-Epidemiological Study and Treatment Outcome of Multinodular Goitre at A Tertiary Care Hospital [PDF]
Journal of Clinical and Diagnostic Research, 2015 Background: Thyroid enlargement has been a common problem encountered in general surgical practice. Thyroid being an endocrine gland, its involvement has a diverse issue from a meagre cosmetic problem to a more concerned malignancy.
Karthik Kathladka Sanjeeva +3 more
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Advanced Science, EarlyView.We investigated a special electrical phenomenon, known as antisymmetric magnetoresistance with four distinct resistance states, in 2D Fe3GaTe2/Pt devices at room temperature. By designing devices with two separated magnetic nanoflakes, we confirmed that the effect originates from spin–momentum locking rather than magnetic domain walls or interface ...
Yunwen Zhu +10 more
wiley +1 more source
Advanced Science, EarlyView.Eight AB‐type 2D inorganic electrides with negatively charged transition metals are theoretically designed. Their monolayers exhibit intrinsic magnetic ordering, rich topological phases, and ultralow work functions. Supported metal Ru on these 2D inorganic electrides effectively alleviates hydrogen poisoning and enables efficient ammonia synthesis ...
Qianwen Zhang +6 more
wiley +1 more source
Counterion Dynamics in Chiral Supramolecular Polymerization
Angewandte Chemie, EarlyView.A single counterion acts as a dynamic structural element directing pathway‐dependent supramolecular polymerization. Subtle counterion repositioning governs molecular packing, aggregate morphology, supramolecular chirality, and asymmetry amplification. ABSTRACT Counterions have been studied in a broad range of chemical and biological systems, and their ...
Camila Montañez‐Moyano +3 more
wiley +2 more sources
ASSOCIATION OF VERTEBRAL FRACTURES AND HIP FRACTURES IN PATIENTS WITH OSTEOPOROSIS
National Journal of Medical Research, 2014 Background: Osteoporosis is quite common disease among aged in India. Studies indicate that vertebral fractures are probably the most common fragility fractures and that they are often followed by a second fracture.
Deepak D Chitragar, Sadik I Shaikh
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