Results 81 to 90 of about 5,525,673 (387)

The evolution of HI and CIV quasar absorption line systems at 1.9 < z < 3.2

, 2013
We have investigated the distribution and evolution of ~3100 intergalactic HI absorbers with HI column densities log N(HI) = [12.75, 17.0] at 1.9 < z < 3.2, using 18 high resolution, high S/N quasar spectra obtained from the ESO VLT/UVES archive. We used
Carswell, Robert F., Kim, Tae-Sun, Müller, Volker, Partl, Adrian M.   +3 more
core   +1 more source

Characterisation of High Current Density Resonant Tunneling Diodes for THz Emission Using Photoluminescence Spectroscopy [PDF]

, 2016
We discuss the numerical simulation of high current density InGaAs/AlAs/InP resonant tunneling diodes with a view to their optimization for application as THz emitters.
Baba, Razvan, Hogg, Richard A., Jacobs, Kristof J.P., Mukai, Toshikazu, Ohnishi, Dai, Stevens, Benjamin J.   +5 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Coordinated Capacitor Voltage Balancing Method for Cascaded H-Bridge Inverter with Supercapacitor and DC-DC Stage

CES Transactions on Electrical Machines and Systems
Cascaded H-bridge inverter (CHBI) with supercapacitors (SCs) and dc-dc stage shows significant promise for medium to high voltage energy storage applications.
Ye Zhang, Zixin Li, Fanqiang Gao, Cong Zhao, Yaohua Li   +4 more
doaj   +1 more source

Intermittent dislocation density fluctuations in crystal plasticity from a phase-field crystal model

, 2014
Plastic deformation mediated by collective dislocation dynamics is investigated in the two-dimensional phase-field crystal model of sheared single crystals.
Angheluta, Luiza, Goldenfeld, Nigel, Mathiesen, Joachim, Tarp, Jens M.   +3 more
core   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source

Research Advances in the Design and Control Technologies of Electric Spindle Motors for CNC Machine Tools

Energies
The electric spindle serves as a critical component in enabling a highly dynamic response, stable torque output, and precise motion control for the main cutting operations of CNC machine tools.
Jinhua Liang, Haiping Xu, Fei Chen, Wei Liu, Peng Zhou   +4 more
doaj   +1 more source

NASICON-type air-stable and all-climate cathode for sodium-ion batteries with low cost and high-power density

Nature Communications, 2019
The development of low-cost and long-lasting all-climate cathode materials for the sodium ion battery has been one of the key issues for the success of large-scale energy storage.
Mingzhe Chen, Weibo Hua, Jin Xiao, D. Cortie, Weihua Chen, Enhui Wang, Zhe Hu, Q. Gu, Xiao-lin Wang, S. Indris, S. Chou, S. Dou   +11 more
semanticscholar   +1 more source

Adenosine‐to‐inosine editing of miR‐200b‐3p is associated with the progression of high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira, Anna Skwarska, Karolina Chwialkowska, Agnieszka Ostrowska, Gabriela Sokolowska, Anna Zeller, Anna Erol, Andrzej Eljaszewicz, Bartosz Hanczaruk, Anna Michalska‐Falkowska, Agnieszka Tarasik, Joanna Reszec‐Gielazyn, Pawel Knapp, Marcin Moniuszko, Adam Kretowski   +14 more
wiley   +1 more source

Research on active damping voltage control considering leakage inductance of FOVRT transformer

International Journal of Electrical Power & Energy Systems
The Flexible on-load voltage regulating transformer (FOVRT) is realized through the integration of a small power converter with the conventional on-load voltage regulator transformer.
Longfei Sun, Jingyuan Yin, Ke-yan Liu, Dongli Jia, Zhao Li, Yu Jiancheng, Song Jinzhao, Tongzhen Wei   +7 more
doaj   +1 more source