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13341
Combining Alamouti coding with V-BLAST through dynamic antenna grouping
Published 2008-01-01“…Based on the optimal detection ordering information generated in the conventional V-BLAST systems, several bits feedback information was built without any additional computational complexity and then the transmit antennas are dynamically divided into two groups: the two weakest antennas are grouped for Alamouti coding and the rest antennas operates as V-BLAST. …”
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13342
Partially adaptive baeam-forming maethods based on genetic algorithms
Published 2006-01-01“…In or-der to meet the real-time processing requirements, this GA was combined with partially adaptive beam-forming tech-niques in the phase-only adaptive array, which can decrease the calculation complexity, and speed up its convergence rates. Two partially adaptive schemes, partial elements and partial bits adaptive beam-forming, were discussed with the genetic algorithm. …”
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13343
Understanding the limitations of substrate degradation in bioelectrochemical systems
Published 2025-01-01“…Starch-fed MFCs exhibited consistently low CE (19%) across all tested conditions due to electron diversion into volatile fatty acids (VFA). Microbial diversity was higher in acetate-fed MFCs but unaffected by stirring, while starch-fed MFCs developed smaller, more specialized communities. …”
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13344
Parameter selection of autocorrelation test for block ciphers
Published 2009-01-01“…Autocorrelation test was a statistical test to evaluate the correlation between one sequence and the corresponding non-cyclic left-shifted d bits sequence.It was impractical to adopt all the values of d since its range was often very wide.Three relations between parameters of randomness test were defined firstly.Then the relationships among the subclass D={1,2,m/4,m/2,3m/4,m,2m}of autocorrelation test for block cipher were studied by statistical experiments,where m was block length.The experiments show that the prefer choice of parameter d is m when doing autocorrelation test for block cipher.The method is also available for parameter selection of other randomness test for other types of cryptosystem.…”
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13345
Editorial
Published 2018-06-01“…Basically, this revelation raised only a corner of the veil which, up to then, had hidden the invention, of which only a few bits of advance information, well-crafted to arouse curiosity and interest, had previously been disclosed. …”
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13346
Improved meet-in-the-middle attack on Joltik-BC-128
Published 2024-10-01Subjects: Get full text
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13347
Research on adaptive rate control algorithm for H.264 based on R-Q model
Published 2012-12-01“…The foundation theory of rate control theory in H.264 video coding standard was analyzed.The latest research work about rate control algorithm were summarized.On the basis of analysis.A novel frame-level rate control algorithm was proposed.Firstly,in order to reduce the inter-dependency between RDO (rate-distortion optimization) and rate control,a kind of two-stage rate control algorithm was presented.Secondly,to provide more accurate prediction of the frame complexity,instead of the MAD (mean absolute difference),bits information in the RDO-based mode decision process was employed to predict the frame complexity.Thirdly,a self-adaptive exponential R-Q model was proposed.The proposed rate control algorithm overcomes the disadvantages in the rate control precision and encoding performance of former algorithms.…”
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13348
Modified Newton's Law of Gravitation due to Minimal Length in Quantum Gravity
Published 2013-01-01“…This leads to a area -type correction to the area law of entropy which implies that the number of bits N is modified. Therefore, we obtain a modified Newton’s law of gravitation. …”
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13349
Semi-fragile watermark algorithm based on Walsh-Hadamard transformand and convolution coding
Published 2009-01-01“…In the case of watermark detection, the tampered place of the image was located by detecting the error bits generated by convolution decoding, and its result was used to recover the tampered image. …”
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13350
Cryptomite: A versatile and user-friendly library of randomness extractors
Published 2025-01-01“…The extractor implementations are efficient in practice and tolerate input sizes of up to $2^{40}\gt10^{12}$ bits. Contrary to alternatives using the fast Fourier transform, we implement convolutions efficiently using the number-theoretic transform to avoid rounding errors, making them well suited to cryptography. …”
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13351
Antioxidant activity and phytochemical profiling of peaches, Arabica coffee, and their combination
Published 2024-12-01“…This study evaluated the antioxidant activity and phytochemical profile of peaches, Arabica coffee, and their combination using ethanol, ethyl acetate, and water as solvents. Extraction was performed via maceration with 96% ethanol and fractionation using water and ethyl acetate. …”
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13352
In Vitro Antioxidant and Cytotoxic Activities of Some Marine Sponges Collected off Misamis Oriental Coast, Philippines
Published 2012-01-01“…Expressed as ascorbic acid equivalents in μg/mL of extract, the hexane extract of Dactylospongia elegans (DeH) and the ethyl acetate extract of Aaptos suberitoides (AsE) showed the highest antioxidant capacity. …”
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13353
Crystal structure of di-μ-acetato-κ4O:O′-bis{(acetato-κ2O,O′)tetraaqua[1-(pyridin-2-ylmethylidene-κN)-2-(pyridin-2-yl-κN)hydrazine-κN1]lanthanum(III)} dinitrate hemihydrate
Published 2025-01-01“…Each LaIII ion is bonded to three N atoms of the Schiff base, 1-(pyridin-2-yl)-2-(pyridin-2-ylmethylene)hydrazine and is coordinated by one acetate group, which acts in η2-bidentate mode and two acetate groups that act in μ2-mode between the two LaIII ions. …”
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13354
Synthesis of CuO Nanoparticles from Copper(II) Schiff Base Complex: Evaluation via Thermal Decomposition
Published 2025-01-01“…The Schiff base itself was synthesized via the condensation of benzidine and 2-hydroxybenzaldehyde in the presence of glacial acetic acid. This newly synthesized symmetric Schiff base served as the ligand for the Cu(II) metal ion complex. …”
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13355
Identification of Potential Vectors and Detection of Rift Valley Fever Virus in Mosquitoes Collected Before and During the 2022 Outbreak in Rwanda
Published 2025-01-01“…Five districts of the eastern province of Rwanda were prospected using a combination of unbaited light traps and Biogents (BG Sentinel and Pro) traps baited with an artificial human scent during three periods, namely mid-August to mid-September 2021, December 2021, and April to May 2022. …”
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13356
Stochastic population models to identify optimal and cost‐effective harvest strategies for feral pig eradication
Published 2024-12-01“…We used effort and cost data from a feral pig‐control program on Kangaroo Island, South Australia, over 17 months to derive functional‐response relationships between control effort (in hours per pig) and pig abundance for four control methods: (1) ground‐based shooting, (2) trapping with remote triggers, (3) poison baiting, and (4) thermal‐assisted aerial culling. …”
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13357
Anopheles mosquitoes in Mondulkiri forest, Cambodia: abundance, distribution, seasonal patterns and Plasmodium prevalence
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13358
THE EFFECT OF QUERCETIN ON MORPHOLOGICAL AND BIOCHEMICAL CHANGES IN RAT LIVER UNDER 270TH DAY CENTRAL DEPRIVATION OF LUTEINIZING HORMONE SYNTHESIS
Published 2022-04-01“…The flavonoid quercetin has capillary-stabilizing properties due to its antioxidant and membrane-stabilizing action. …”
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13359
The effect of malotilate, a derivative of malotilate and a flavenoid on eicosanoid production in inflammatory bowel disease in rats
Published 1993-01-01“…Acetic acid produced an acute inflammatory response in the colon, associated with a markedly raised inflammation score (15.8 vs. < 0.5), based on a seven-scaled scoring system which includes observation of haemorrhage, submucosal oedema, cellular infiltration, goblet cell depletion, loss of architecture, crypt abscesses and serosal involvement, of which every item was subdivided as mild, moderate and severe. …”
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13360
Evaluation of Antimicrobial Activity of Conyza bonariensis Leaf Extracts against Clinically Isolated Fungi Causing Superficial Infection
Published 2021-01-01“…A strong effect was observed with chloroform and hexane extracts on C. albicans (32.60 ± 4.69 mm and 27.00 ± 1.00 mm), respectively. While, ethyl acetate and methanol extracts showed the best effect against M. furfur (30.80 ± 1.71 mm and 27.00 ± 1.00 mm), respectively. …”
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