Results 11 to 20 of about 4,216 (180)

Laboratory and space spectroscopy of DCO+ [PDF]

open access: yesAstronomy & Astrophysics, 2005
The rotational spectra of DCO+ and its two isotopomers D{13}^CO+ and DC{18}^O+, produced in a negative glow discharge cell, have been recorded in the 137-792 GHz region, which includes lines from J=2-1 up to J=11-10. The determined rotational and centrifugal distortion constants allow to predict the DCO+ rotational spectrum up to 1000 GHz with an ...
P. Caselli, DORE, LUCA
openaire   +4 more sources

Detection of DCO+in a circumstellar disk [PDF]

open access: yesAstronomy & Astrophysics, 2003
Accepted by A&A Letters; 4 pages, 1 ...
Dishoeck, E.F.   +2 more
openaire   +5 more sources

Characterising smoking among cancer patients in Poland - a cross-sectional pilot survey

open access: yesTobacco Induced Diseases, 2018
Background Smoking among cancer patients is related to poor treatment outcomes and lower quality of life. Intensive treatment of cancer patients in secondary care offers opportunities to deliver more intensive cessation support.
Aleksandra Herbec   +7 more
doaj   +1 more source

A novel chromone derivative with anti-inflammatory property via inhibition of ROS-dependent activation of TRAF6-ASK1-p38 pathway. [PDF]

open access: yesPLoS ONE, 2012
The p38 MAPK signaling pathway plays a pivotal role in inflammation. Targeting p38 MAPK may be a potential strategy for the treatment of inflammatory diseases.
Hailiang Liu   +12 more
doaj   +1 more source

A low power varactor based digitally controlled oscillator design in 180 nm CMOS technology

open access: yesSN Applied Sciences, 2023
This paper reports two distinct architectures for digitally-controlled oscillators (DCOs) utilizing MOS varactor, designed in TSMC 180 nm CMOS technology. The first DCO design employs a CMOS inverter, while the second design features a Three-Transistors (
Shweta Dabas, Manoj Kumar
doaj   +1 more source

New insights on the role of organic speciation in the biogeochemical cycle of dissolved cobalt in the southeastern Atlantic and the Southern Ocean [PDF]

open access: yesBiogeosciences, 2012
The organic speciation of dissolved cobalt (DCo) was investigated in the subtropical region of the southeastern Atlantic, and in the Southern Ocean in the Antarctic Circumpolar Current (ACC) and the northern Weddell Gyre, between 34°25´ S and 57°33´ S ...
J. Bown, M. Boye, D. M. Nelson
doaj   +1 more source

L'intérêt du trauma damage control orthopédique dans les polytraumatismes : un cas de disjonction du bassin associée à une luxation de la hanche avec atteinte vasculaire

open access: yesThe Pan African Medical Journal, 2017
La connaissance de la physiopathologie du traumatisé grave et les conséquences hémodynamiques et inflammatoires de la prise en charge chirurgicale initiale a amené de nombreux chirurgiens à modifier leur approche du traitement des polytraumatisé graves ...
Tarik Madani   +9 more
doaj   +1 more source

Anscombe Root DCO-OFDM for SPAD-Based Visible Light Communication

open access: yesIEEE Photonics Journal, 2018
For high-speed visible light communication (VLC) with weak signals such as in underwater environment, dc-biased optical orthogonal frequency-division multiplexing (DCO-OFDM) based on single-photon avalanche diodes (SPADs) is viewed as a promising scheme.
Ying-Dong Zang   +2 more
doaj   +1 more source

Sparse Repeated Preamble-Based Direct Current Offset and Frequency Offset Estimator in OFDM Direct Conversion Receivers

open access: yesIEEE Access, 2019
Direct conversion receiver (DCR) architecture has drawn considerable attention in orthogonal frequency-division multiplexing (OFDM) systems. However, OFDM DCRs are sensitive to non-ideal front-end effects and suffer from direct current offset (DCO) and ...
Yujie Xia, Jianhua Cui, Junjie Zhang
doaj   +1 more source

DCO-OFDM Channel Sounding with a SiPM Receiver

open access: yes2021 IEEE Photonics Conference (IPC), 2021
Orthogonal Frequency-Division Multiplexing (OFDM) is a popular modulation scheme, which requires a linear channel. Unfortunately, the most sensitive receivers for visible light communications, silicon photomultipliers (SiPMs), have a non-linear response. Despite this incompatibility, results from an easily implemented method of combining OFDM and SiPMs
Matthews, W, He, C, Collins, S
openaire   +2 more sources

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