Results 91 to 100 of about 3,949,769 (293)

Comparison of DMTL Phase Shifter Designs

open access: yes, 2009
Three different distributed-MEMS-transmission-line (DMTL) phase shifter design approaches are compared for 35 GHz applications able to shift the full 360° phase shift.
Tuohiniemi, Mikko   +3 more
core   +2 more sources

Wideband (2:1) Phase Shifter for Reconfigurable Intelligent Surfaces With Linear Phase Control

open access: yesIEEE Journal of Microwaves
This paper presents a novel wideband phase shifter that utilizes an elliptically shaped slot-based topology for millimeter wave (mm-Wave) Reconfigurable Intelligent Surfaces (RIS).
Tatiana Valera   +4 more
doaj   +1 more source

Enhanced Graphene Based Electronically Tunable Phase Shifter. [PDF]

open access: yesMicromachines (Basel), 2023
Yasir M, Peinetti F, Savi P.
europepmc   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Switched susceptance phase shifter [PDF]

open access: yes, 1987
This thesis pertains to the design of a new digital phase shifter that can be used in electronically scanned antenna arrays. The phase shifter consists of several split copper patches connected together by microwave diodes and etched on a dielectric card
Virga, Kathleen Lowe
core  

Neutralization of the PTX3/CD44 axis suppresses TGF‐β1 signaling in kidney fibrosis

open access: yesFEBS Letters, EarlyView.
This study investigates how the PTX3/CD44 axis promotes kidney fibrosis by activating TGF‐β1 signaling. We demonstrate that the neutralizing antibody WHC‐001 effectively inhibits this pathway, suppressing myofibroblast activation and partial epithelial–mesenchymal transition (EMT).
Chao‐Chun Cheng   +8 more
wiley   +1 more source

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

open access: yesMolecular 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

Photonic Phase Shifter Based on Wavelength Dependence of Brillouin Frequency Shift

open access: yes, 2011
We present a novel radio-frequency (RF) photonic phase shifter based on wavelength dependence of Brillouin frequency shift. A continuous and full phase shift up to 360 degrees at 18 GHz is achieved when the wavelength of the optical carrier is scanned ...
Li W   +3 more
core  

Three-phase ideal phase shifter using AC choppers

open access: yes, 2019
A three-phase ideal phase shifter using pulse-width modulation (PWM) AC choppers is proposed. The ideal phase shifter is made up of three single-phase PWM AC choppers and transformers for series quadrature voltage injection.
Kim, JH, Kwon, BH
core   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

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