Results 91 to 100 of about 286,795 (334)
Zeitschrift f�r Analytische Chemie, 1912 n ...
Bukowski, A., Arnold,, Mentzel,
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ChemPlusChem, Accepted Article.A novel approach combining the advantages of heterogeneous with those of homogeneous catalysis is the deposition of metal‐organic complexes on a metallic surface to create well‐defined single‐site catalysts. Dome‐shaped organometallic complexes with weakly binding coligands are well suited for this purpose.
Felix Tuczek +4 more
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FULL-RATE SPACE-TIME BLOCK CODE FOR FOUR TRANSMIT ANTENNAS WITH LINEAR DECODING
Jordanian Journal of Computers and Information Technology, 2020 This paper proposes a new full-rate space-time block code for MIMO systems at four transmit antennas, which aims at minimizing the bit error rate with low-complexity decoding using ZF and MMSE linear detection techniques in Rayleigh fading channels ...
Younes Djemamar +2 more
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Information Hiding in Color Image based on LSB and FA [PDF]
Kirkuk Journal of Science, 2017 In this research was to hide information in color images of the type of Joint Photographic Experts Group (JPEG) using hiding technique Least Significant Bit (LSB) with Firefly algorithm.
Dr. Ahmed Sami Nori, Jasim Ibrahim Jasim
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The Norwegian legacy of resisting formal grading
The Curriculum Journal, EarlyView.Abstract Norway has a longstanding tradition of prohibiting formal grading in primary education. This paper traces a century of restrictive grading policies and their associated discourses. Using Bacchi's (2009) What's the Problem Represented to be framework, we present an analysis of the policy documents that have underpinned Norwegian assessment ...
Henning Fjørtoft +2 more
wiley +1 more source
Trade‐offs among restored ecosystem functions are context‐dependent in Mediterranean‐type regions
Ecography, EarlyView.Global biodiversity hotspots, including Mediterranean‐type ecosystems worldwide, are highly threatened by global change that alters biodiversity, ecosystem functions, and services. Some restoration activities enhance ecosystem functions by reintroducing plant species based on known relationships between plant traits and ecosystem processes.
Sebastian Fiedler +20 more
wiley +1 more source
Benefits and Limits of Modulation Formats for Optical Communications
Advances in Electrical and Electronic Engineering, 2014 This paper is focused on benefits and limits of intensity and phase modulation formats used in optical communications. The simulation results are obtained using OptSim software environment, employing Time Domain Split Step method.
Rajdi Agalliu, Michal Lucki
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Estimation of BER from Error Vector Magnitude for Optical Coherent Systems
, 2016 This paper presents the estimation of bit error ratio (BER) from error vector magnitude (EVM) for M-ary quadrature amplitude modulation (QAM) formats in optical coherent systems employing carrier phase recovery with differential decoding to compensate ...
I. Fatadin
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