Results 41 to 50 of about 253,517 (346)
Fabrication and characterization of plasmonic band-stop filter using Ag grating [PDF]
EPJ Web of Conferences, 2020 This study proposes a plasmonic band-stop filter with surface plasmon resonance in a doublelayer wire grid structure targeting short-wavelength visible and near-ultraviolet regions for applications in ultraviolet photography.
Motogaito Atsushi +2 more
doaj +1 more source
Resource allocation in DMT transmitters with per-tone pulse shaping [PDF]
International audiencePer-tone pulse shaping has been proposed as an alternative to time domain spectral shaping for DMT transmitters, e.g. VDSL modems.
Deneire, Luc +2 more
core +2 more sources
Ground-Based Coronagraphy with High Order Adaptive Optics [PDF]
, 2001 We summarize the theory of coronagraphic optics, and identify a dimensionless fine-tuning parameter, F, which we use to describe the Lyot stop size in the natural units of the coronagraphic optical train and the observing wavelength.
Anand Sivaramakrishnan +11 more
core +2 more sources
Design and Characterization of Wideband Terahertz Metamaterial Stop-Band Filter
Micromachines, 2022 We propose and design a metamaterial broadband stop-band filter with a steep cut-off in the terahertz region. The filter is based on the flexible structure of metal-dielectric-metal-dielectric-metal (MDMDM).
Hao Li +4 more
doaj +1 more source
Reconfigurable SiC embedded photonic structures with self optical bias control [PDF]
, 2013 Multilayered heterostructures based on embedded a-Si:H and a-SiC:H p-i-n filters are analyzed from differential voltage design perspective using short- and long-pass filters. The transfer functions characteristics are presented. A numerical simulation is
Fantoni, Alessandro +4 more
core +2 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
Molecular Oncology, EarlyView.Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova +25 more
wiley +1 more source
An Ultra-Wide Stop-Band LPF Using Asymmetric Pi-Shaped Koch Fractal DGS
IEEE Access, 2017 Defected ground structure (DGS) with symmetrical geometry has been widely adopted in low-pass filter (LPF) designing, while asymmetrical geometry DGS can exhibit some specific features on transition band and stop-band.
Shihua Cao +3 more
doaj +1 more source
Molecular Oncology, EarlyView.Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch +13 more
wiley +1 more source
Tunable Germanium-on-Insulator Band-Stop Optical Filter Using Thermo-Optic Effect
IEEE Photonics Journal, 2020 We demonstrate a tunable band-stop optical filter on a germanium-on-insulator photonic platform operating at 1.95 μm wavelength. The band-stop filter is implemented using parallel-coupled microring resonators with the number of microring ...
Chong Pei Ho +4 more
doaj +1 more source