Results 41 to 50 of about 7,265 (265)

A Highly-Integrated Reconfigurable Ka-Band Receiver Supporting Active and Passive Detections in a 90-nm CMOS Technology

IEEE Access, 2021
A highly-integrated reconfigurable Ka-band receiver in a 90-nm CMOS technology is proposed for the applications of satellite wireless communications, remote sensing of atmospheric conditions, and detection of space debris.
Chun-Hsing Li, Ke-Deng Huang, Te-Yen Chiu   +2 more
doaj   +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

A High Power Factor Symmetrical Switched-Mode Power Supply.

Revista Tecnologia, 2009
This paper proposes a switched-mode power supply (SMPS) with power factor correction. A preregulator boost converter is employed in order to obtain universal line voltage and reduced harmonic content of the input current. Two dc/dc forward converters are
Fernando Lessa Tofoli, Carlos Alberto Gallo   +1 more
doaj  

IMPLEMENTATION OF A SWITCHED POWER SUPPLY FOR THE PLASMA ELECTROLYTIC OXIDATION TECHNIQUE

Revista de la Facultad de Ciencias, 2017
A switched-mode power supply was implemented for using in the Plasma Electrolytic Oxidation (PEO) technique. The electronic devices are inexpensive and ordinarily used, which facilitates the construction of the system.
Fernando Gordillo-Delgado, Darwin Augusto Torres-Ceron, John Alexander García-Giraldo   +2 more
doaj   +1 more source

Sliding mode controller for extraction and supply of photovoltaic power using switched series parallel sources reduced switch count multilevel inverter

IET Power Electronics, 2021
The reduced switch count multilevel inverter (RSC‐MLI) is the latest trend in power electronic converters due to reduction in the switch count and cost.
G. Eshwar Gowd, Dharmavarapu Sreenivasarao, Hari Priya Vemuganti   +2 more
doaj   +1 more source

Analysis of the high-gain BOCUK DC-DC converter-based PFC using an LQR controller for SMPS applications

Automatika, 2023
This research work emphasizes on the development of a unique high-gain BOCUK DC-DC converter for Switched Mode Power Supply (SMPS) applications. The high-gain BOOST-CUK (BOCUK) DC-DC converter combines the benefits of both Boost and Cuk converters for ...
L. Annie Isabella, M.G. Umamaheswari, G. Marimuthu   +2 more
doaj   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gabor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

High-Frequency Modified Bridgeless AC-DC PFC Rectifier for Ceiling-Fan

e-Prime: Advances in Electrical Engineering, Electronics and Energy
High current percentage total harmonics distortion (%THD), low supply power factor (SPF), and high input-power are main concern in an existing brushless direct current motor ceiling-fan (BLDCMCF).
Amit Kumar, Bhim Singh
doaj   +1 more source

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source