Results 41 to 50 of about 799,648 (306)

Phased array systems in silicon

IEEE Communications Magazine, 2004
Phased array systems, a special case of MIMO systems, take advantage of spatial directivity and array gain to increase spectral efficiency. Implementing a phased array system at high frequency in a commercial silicon process technology presents several challenges.
Ali Hajimiri, Abbas Komijani, Arun Natarajan 0001, Rumi Chunara, Xiang Guan, Hossein Hashemi 0001   +5 more
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Study of Residual Stress Using Phased Array Ultrasonics in Ti-6AL-4V Wire-Arc Additively Manufactured Components

Sensors
This paper presents a study on residual stress measurement in wire-arc additively manufactured (WAAM) titanium samples using the non-destructive method of phased array ultrasonics. The contour method (CM) was used for the verification of the phased array
Joseph Walker, Brandon Mills, Yashar Javadi, Charles MacLeod, Yongle Sun, Pradeeptta Kumar Taraphdar, Bilal Ahmad, Sundar Gurumurthy, Jialuo Ding, Fiona Sillars   +9 more
doaj   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

The Warm Receiver Section and the Digital Backend of the PHAROS2 Phased Array Feed [PDF]

, 2019
We describe the development of a multi-channel “warm receiver section” (WS) and of a digital beamformer for the PHAROS2 Phased Array Feed (PAF), a PAF demonstrator for radio astronomy application across the 4-8 GHz radio frequency (RF) band.
PUPILLO, Giuseppe, CATTANI, ALESSANDRO, CONCU, Raimondo, MATTANA, Andrea, PISANU, Tonino, SCHIRRU , LUCA, Chiello Riccardo, Zarb Adami, Kris, SCALAMBRA, ALESSANDRO, RODA, JURI, MONARI, JADER, BIANCHI, GERMANO, RUSTICELLI, SIMONE, Magro Alessio, SCHIAFFINO, MARCO, NAVARRINI, Alessandro, NALDI, Giovanni, SCHILLIRO', FRANCESCO, SABA, Andrea, LADU, Adelaide, POLONI, MARCO, NESTI, Renzo, MACCAFERRI, ANDREA, MORSIANI, MARCO, MARONGIU, Pasqualino, URRU, Enrico, COMORETTO, Giovanni, MELIS, Andrea, ORTU, Pierluigi, PERINI, FEDERICO   +29 more
core   +1 more source

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

24 GHz LNA and Vector Modulator Phase Shifter for Phased-Array Receiver in CMOS Technology [PDF]

, 2013
With the rapid development of the applications in short range communication, phased-array receiver working at 24 GHz can provide enhanced gain performance at desired transmission direction. Also there is the wide signal bandwidth, i.e.
Pierre-Andre Farine, Farine, Pierre-André, Wang, Ban, Cyril Botteron, Gabriele Tasselli, Tasselli, Gabriele, Botteron, Cyril, Ban Wang   +7 more
core   +2 more sources

Coherently Radiating Periodic Structures for Feeding Concentric Rings Array with Reduced Number of Phase Shifters

Sensors, 2022
This paper presents the application of CORPS (coherently radiating periodic structures) for feeding CRA (concentric rings array) with a reduced number of phase shifters.
Brian Sanchez, Marco A. Panduro, David H. Covarrubias, Alberto Reyna, Elizvan Juárez   +4 more
doaj   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

Phased array ultrasonic testing of gear tooth

Cogent Engineering
This paper proposes a new testing method, phased array ultrasonic testing, for the internal defects of gear teeth, which can be used to inspect the teeth of final products, breaking the limitations of incomplete volume coverage of conventional ultrasonic
Liang Wang, Chenchen Ma
doaj   +1 more source