Results 81 to 90 of about 136,383 (292)

Performance of Generalized Multicarrier DS-CDMA over Nakagami-$m$ Fading Channels

open access: yes, 2002
A class of generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) schemes is defined and its performance is considered over multipath Nakagamifading channels. The spacing between two adjacent subcarriers of the generalized MC
Yang, L-L., Hanzo, L.
core   +1 more source

INVESTIGATION OF DOSIMETRIC PROPERTIES OF TABLE SUGAR IRRADIATED WITH GAMMA RAYS USING EPR TECHNIQUE

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi
In our study, it was observed that the EPR signals of table sugar irradiated with gamma rays at 3 kGy, 5 kGy, 10 kGy increased in proportion to the increasing dose.
Gül Bayramiye Özmen, Eren Şahiner
doaj   +1 more source

Mechanisms and therapeutic opportunities of the ribotoxic stress response in cancer

open access: yesMolecular Oncology, EarlyView.
Cancer cells' high translational demand creates opportunities to therapeutically target ribosome function. Ribosome stalling and collisions activate ZAKα and the ribotoxic stress response (RSR), which can trigger rapid, p53‐independent apoptosis in cancer.
Anastassiya Kim   +7 more
wiley   +1 more source

Inter-Carrier Interference Analysis of OFDM Systems Communicating Over Rapidly-Fading Nakagami-m Channels

open access: yes, 2006
In this contribution, the Bit Error Rate (BER) performance of OFDM systems using coherent demodulation over time-variant flat Nakagami-m fading channels is analyzed.
Zhang, J.M   +3 more
core   +1 more source

Performance of Fractionally Spread Multicarrier CDMA in AWGN as Well as Slow and Fast Nakagami-m Fading Channels

open access: yes, 2005
—In multicarrier code-division multiple-access (MCCDMA), the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency.
Yang, L-L., Hanzo, L.
core   +1 more source

Elucidation of the Effect of Solar Light on the Near-Infrared Excitation Raman Spectroscopy-Based Analysis of Fabric Dyes

open access: yesMolecules
Colored textiles are valuable physical evidence often found at crime scenes. Analysis of the chemical structure of textiles could be used to establish a connection between fabric found at a crime scene and suspect cloths.
Shannon Bober, Dmitry Kurouski
doaj   +1 more source

Juan Carlos Onetti : La escritura con propósitos

open access: yesCuadernos LIRICO, 2013
We will consider the analysis of the writing processes in Juan Carlos Onetti’s novel Juntacadáveres(1964), focusing our work on documents, manuscripts and typescripts corrected by hand by the author himself. In the manuscripts where he drew up chapters 1
María Alejandra Alí
doaj   +1 more source

NAPRT loss promotes lung tumor initiation and growth through AKT signaling independently of NAD+ biosynthesis

open access: yesMolecular Oncology, EarlyView.
Loss of NAPRT promotes lung tumor initiation and growth through a noncanonical mechanism, independent of its role in NAD+ biosynthesis. Mechanistically, NAPRT depletion activates the mTORC2‐driven AKT/β‐catenin signaling axis to enhance clonogenic and invasive phenotypes. Furthermore, lung‐specific Naprt deletion significantly increases tumor burden in
Myung Joon Oh   +11 more
wiley   +1 more source

Performance Analysis of Coded $M$-ary Orthogonal Signaling Using Errors-and Erasures Decoding Over Frequency-Selective Fading Channels

open access: yes, 2001
The performance of $M$-ary orthogonal signaling schemes employing Reed–Solomon (RS) codes and redundant residue number system (RRNS) codes is investigated over frequency-selective Rayleigh fading channels.
Yang, L-L., Hanzo, L.
core   +1 more source

Large-Scale Fading Characteristics and Models for Vehicle-to-Pedestrian Channel at 5-GHz

open access: yesIEEE Access, 2019
Vehicle-to-Pedestrian (V2P) communication is essential to enable a reliable collision avoidance system for vehicles and vulnerable road users (VRUs). In order to develop a reliable communication system accurate channel models are required.
Ibrahim Rashdan   +4 more
doaj   +1 more source

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