Results 51 to 60 of about 11,614 (280)

PERFECTA Loaded Lipid Cubosomes for 19F‐MRI: Physico‐Chemical Characterization

open access: yesChemistry – A European Journal, EarlyView.
Phytantriol‐based cubosomes loaded with PERFCTA, a fluorinated MRI probe, were developed as promising systems for imaging and drug delivery. The nanoparticles showed high PERFECTA encapsulation efficiency, strong fluorine MRI signals, and optimal colloidal stability in biological media.
Pietro Milesi   +10 more
wiley   +1 more source

New Code Matched Interleaver for Turbo Codes with Short Frames

open access: yesAdvances in Electrical and Computer Engineering, 2010
Turbo codes are a parallel concatenation of two or more convolutional codes, separated by interleavers, therefore their performance is not influenced just by the constituent encoders, but also by the interleaver.
LAZAR, G. A.   +3 more
doaj   +1 more source

Performance Evaluation and Enhancement of Third Generation Mobile System [PDF]

open access: yesEngineering and Technology Journal, 2005
The goal for the next generation mobile communication system is to seamlessly integrate a wide variety of communication services such as high speed data transmission , video and multimedia traffic as well as voice signal . The technology needed to tackle
Muhanned alfarras
doaj   +1 more source

Graph-Based Codes and Iterative Decoding [PDF]

open access: yes, 2003
The field of error correcting codes was revolutionized by the introduction of turbo codes in 1993. These codes demonstrated dramatic performance improvements over any previously known codes, with significantly lower complexity.
Khandekar, Aamod Dinkar
core   +1 more source

Oxidative Generation and Reactivity of the Cyclopropyl Radical From a Martin Silicate

open access: yesChemistry – A European Journal, EarlyView.
A photoredox strategy employing Martin silicates enables the oxidative generation and controlled capture of cyclopropyl radicals, including the naked one, long considered challenging intermediates. The method affords functionalized cyclopropanes through both Giese‐type additions and dual nickel/photoredox C(sp3)−C(sp2) cross‐couplings.
Amal Lakhal   +3 more
wiley   +1 more source

A Survey and Tutorial on Low-Complexity Turbo Coding Techniques and a Holistic Hybrid ARQ Design Example [PDF]

open access: yes, 2013
Hybrid Automatic Repeat reQuest (HARQ) has become an essential error control technique in communication networks, which relies on a combination of arbitrary error correction codes and retransmissions.
Chen, Hong   +2 more
core   +1 more source

Mechanical Vapor Recompression in Distillation: A Framework to Analyze Technical Feasibility, Economic Competitiveness, and Ecological Benefits

open access: yesChemie Ingenieur Technik, EarlyView.
Communication: An approach for a holistic evaluation of distillation processes with mechanical vapor recompression combining an initial energy potential analysis, shortcut methods for the compressor and reboiler design, and the determination of economic and ecological performance parameters is presented.
Katharina Jasch   +4 more
wiley   +1 more source

Design and Implementation of Adaptive Turbo Encoder for Quantized Software Defined Low-Power DVB-RCS Radios [PDF]

open access: yesTelfor Journal, 2010
Turbo codes are employed in every robust wireless digital communications system. Those codes have been adopted for the satellite return channel in DVB-RCS (Return Channel via Satellite) standard. In Software Defined Radios (SDRs), Field Programmable Gate
S. H. Elramly, S. W. Shaker
doaj  

An Efficient Polar Coding Scheme for Uplink Data Transmission in Narrowband Internet of Things Systems

open access: yesIEEE Access, 2020
Narrowband Internet of Things (NB-IoT) is an emerging IoT cellular-based wireless technology that builds based on the existing LTE standard to extend its network coverage suited for Low Power Wide Area Network (LPWAN) connectivity.
Rabiu Sale Zakariyya   +4 more
doaj   +1 more source

Cardiac remodeling and arrhythmia in a mouse model of Depdc5 haploinsufficiency

open access: yesEpilepsia, EarlyView.
Abstract Objective Some ion channel genes linked to developmental and epileptic encephalopathy (DEE) are also linked to cardiac arrhythmia, leading to the hypothesis that predisposition to cardiac arrhythmias may contribute to the complex disease presentation of DEE and possibly to the mechanism of sudden unexpected death in epilepsy.
Roberto Ramos‐Mondragon   +9 more
wiley   +1 more source

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