Results 31 to 40 of about 61,164 (293)

Identifying capacitive and inductive loss in lumped element superconducting hybrid titanium nitride/aluminum resonators [PDF]

, 2012
We present a method to systematically locate and extract capacitive and inductive losses in superconducting resonators at microwave frequencies by use of mixed-material, lumped element devices.
Kline, Jeffrey S., Pappas, David P., Sandberg, Martin O., Vissers, Michael R., Weides, Martin P.   +4 more
core   +1 more source

Microwave stray radiation losses in vacuum windows

Fusion Engineering and Design, 2022
Vacuum windows are required in magnetically confined fusion experiments to provide possibilities to observe the plasma in a wide range of electromagnetic wavelengths. The window disk consists of a dielectric, e.g. Fused Silica (SiO$_2$), Sapphire or Chemically Vapourised Diamond (CVD).
Oosterbeek, J. W., Stern, M., Braune, H., Ewert, K., Hirsch, M., Hollmann, F., Laqua, H. P., Marsen, S., Meier, A., Moseev, D., Noke, F., Reintrog, A., Stange, T., Wolf, R. C.   +13 more
openaire   +3 more sources

MYCN Amplification in RB1‐Inactivated Retinoblastoma: Association With High‐Risk Features

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background MYCN amplification occurs in a subset of retinoblastoma cases, both with and without RB1 inactivation. It has been suggested that retinoblastomas with MYCN amplification represent a distinct entity with more aggressive clinical behavior.
Kyriaki Papaioannou, Regina Kubica, Karen Fischhuber, Jasmin Beygo, Madlen Reschke, Petra Ritter‐Sovinz, Eva Biewald, Petra Ketteler, Dietmar Lohmann, Deniz Kanber   +9 more
wiley   +1 more source

Low-Stray Inductance Optimized Design for Power Circuit of SiC-MOSFET-Based Inverter

IEEE Access, 2020
High frequency converters based on silicon carbide (SiC) semiconductors are becoming popular, but due to the integration parameters, they are very likely to generate high voltage overshoot and large oscillation, which increase the voltage stress and ...
Bo Liu, Weijie Li, Dongyi Meng, Lijian Diao, Yingtao Ma, Tengfei Qiu, Lijun Diao   +6 more
doaj   +1 more source

Rotor Slot Permeance Harmonics under Distorted Air-Gap Flux Waveform for Cage Induction Motors [PDF]

, 1991
The air-gap flux waveform for a cage induction machine is not sinusoidal in shape and contains various harmonics, including the phase-belt harmonics, slot magnetomotive force (mmf) harmonics, slot permeance harmonics, and saturation harmonics.
Hsu, J.S., Liou, S.S., Weldon, W.F.
core  

Characterization of fluorescence collection optics integrated with a micro-fabricated surface electrode ion trap

, 2013
One of the outstanding challenges for ion trap quantum information processing is to accurately detect the states of many ions in a scalable fashion. In the particular case of surface traps, geometric constraints make imaging perpendicular to the surface ...
Chou, Chin-wen, Clark, Craig R., Ellis, A. R., Hunker, Jeff, Kemme, Shanalyn A., Maunz, Peter, Stick, Daniel L., Tabakov, Boyan, Tigges, Chris   +8 more
core   +1 more source

Pancreas, Muscle, and Subcutaneous Fat Atrophy in Patients Undergoing Radiation for Neuroblastoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Radiation therapy (RT) is part of standard‐of‐care therapy in high‐risk neuroblastoma (HR‐NBL) but can significantly affect nearby tissue. The objectives of this study were (1) to characterize changes in pancreas volume after RT and (2) to characterize changes in body composition, including body weight percentile ...
Pradipta Debnath, Marissa Ray, Luke Pater, Alexandra O. Glenn, Stephen Hartman, Elanchezhian Somasundaram, Todd Jenkins, Juan P. Gurria, Katherine Somers, Andrew T. Trout, Meera Kotagal   +10 more
wiley   +1 more source

Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]

, 2015
Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P., Ahmed, Shehab, Gowaid, I. A., Holliday, Derrick, Williams, Barry W.   +4 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source