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11821
Bioharvesting and improvement of nano-silica yield from bagasse by irradiated Curvularia spicifera
Published 2025-02-01“…A gamma irradiation dose of 750 Gy was optimal for a significant increase in the silica bioleaching activity by C. spicifera fermented bagasse (71.4% increase compared to the non-irradiated strain).…”
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11822
Ultralow UV absorber content in 3D printed nanocomposites: maximizing printability and microwave absorption efficiency
Published 2025-01-01“…Moreover, the resulting nanocomposites exhibit promising microwave absorption properties in the S and Ku bands (2–4 and 12–18 GHz, respectively). Their reflexion losses, are below −10 dB over a 2.5 GHz bandwidth for a 4.75 mm thick layer. …”
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11823
Ultrashort wave satellite channel classification and recognition algorithm based on mirror filled spectrum and LA-ResNet50
Published 2023-10-01“…In response to the classification and identification problems of 5 kHz channels, 25 kHz channels, broadband interference channels, narrowband interference channels, and single tone interference channels in the ultrashort wave frequency band, a classification and identification method for ultrashort wave channels based on mirror filled spectrum and LA-ResNet50 (LBP attention ResNet50) was proposed.The problem of difficulty in distinguishing between satellite channels and background noise under low signal-to-noise ratio, as well as the identification of signal channels and interference channels with similar characteristics, has been effectively solved.Firstly, the proposed method performs mirror symmetry on the ultrashort wave spectrum and fills it in, while blackening the edges of the spectrum to construct a mirror-filled spectrum, which improves the discrimination of different types of channel spectra.Then, channel attention was introduced into ResNet50 to focus the attention of the network model on the channel.Finally, a loss function based on cross entropy and local binary pattern (LBP) was proposed to improve the extraction effect of subtle texture features on signal channels and interference channels images.The proposed method based on mirror-filled spectrum and LA-ResNet50 has shown an improvement of 19.8%, 8.2%, 1.8%, and 0.8% in classification accuracy for ultrashort wave channels compared to the traditional method utilizing fast Fourier transform (FFT) spectrum thresholding, the YOLOv5s target detection and classification method based on mirror-filled spectrum, the Attention-ResNet50 method with attention mechanism based on mirror-filled spectrum, and the Transformer network method under a signal-to-noise ratio (SNR) of 10 dB.…”
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11824
A simplified version of the method of calculation of multilayer composite rods according to the theory of A.R. Rzhanitsyn
Published 2024-12-01“…The stress-strain state of multilayer composite beams is determined by the functions of deflections, bending moments and forces in continuously distributed interlayer connections that prevent mutual shear of the layers. …”
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11825
A comparison between male judo-kas and karate-kaswithin body composition and physical fitness
Published 2014-02-01“…Selected body composition such as Standing Height, Weight, HumerusBiepicondylar, Wrist Diameter, Femur Biepicondylar, Ankle Diameter, Upper arm Circumference, Forearm Circumference, Thigh Circumference, Calf Circumference, Bicep Skinfold, Forearm Skinfold, Suprailiac Skinfold, Subscapular Skinfold, Thigh Skinfold, Calf Skinfold and Physical fitness variables such as 50 meter Dash, Shuttle Run, Shot Put, 600 yards Run or Walk and Bend and Reach Test were presented to compare the male Judokas and Karatekas from three different weight categories namely light weight, middle weight and heavy weight. …”
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11826
Impact of Human Activities on Woody Vegetation in Gallery Forests in the Mandara Mountains (Far North, Cameroon)
Published 2024-01-01“…Firstly, the inventories were carried out in 150 plots of 1000 m2 each, installed on the banks of watercourses following the band of plant formations. In each plot, woody species were counted and those showing at least one sign of degradation were noted. …”
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11827
Modification of Rayleigh dissipation function for numerical simulation of internal damping in rod structures
Published 2024-06-01“…The internal damping matrix was obtained taking into account the influence of linear and angular deformation rates to simulate the dynamic behaviour of short bending structural elements, the deformation of which is described using the Timoshenko model. …”
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11828
Conflits, féminité et identités diasporiques. Le pouvoir de la représentation chez Pratibha Parmar et Gurinder Chadha
Published 2010-09-01“…Taken up by Pratibha Parmar, with Nina’s Heavenly Delights (2006), this hyphenated vision of British-Asian identity highly contrasts with their previous films. …”
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11829
Study on the dynamic load sharing characteristics of nutation face gear transmission
Published 2025-01-01“…A 22-degree-of-freedom bending-torsional-axial coupled dynamic model of the system was established considering parameters such as support stiffness, time-varying meshing stiffness, meshing error, and installation error. …”
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11830
Risk Factors for Rebleeding after Emergency Endoscopic Treatment of Dieulafoy Lesion
Published 2020-01-01“…The 30-day rebleeding rate for pure injection therapy (epinephrine, cyanoacrylate, or lauromacrogol injection alone), nonpure injection therapy (argon plasma coagulation, band ligation, and hemoclip application alone), and combination therapy (combination of any >2 methods) was 45.2%, 12.8%, and 11%, respectively. …”
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11831
Estimation of expediency of taking into account the suppleness of outrigger metallic structures nodes in calculation of high-rise building structures
Published 2024-08-01“…In the design of high-rise buildings, outriggers are provided to distribute wind loads between the core and perimeter columns, reducing horizontal displacements. …”
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11832
PHAST. The Panchromatic Hubble Andromeda Southern Treasury. I. Ultraviolet and Optical Photometry of over 90 Million Stars in M31
Published 2025-01-01“…The photometry is derived using all overlapping exposures across all bands, and achieves a 50% completeness-limited depth of F475W ∼ 27.7 in the lowest surface density regions of the outer disk and F475W ∼ 26.0 in the most crowded, high surface brightness regions near M31's bulge. …”
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11833
Synthesis and Characterization of Iron Doped Titanium Dioxide (Fe: TiO2) Nanoprecipitate at Different pH Values for Applications of Self-Cleaning Materials
Published 2022-01-01“…Extremely translucent nanopowders are witnessed in the observable region by visible and redshifts near advanced wavelengths with rising pH values because of an increase in the size of particles from XRD data and SEM micrographs. The band gap of energy produced by nano concentrates was reduced with growing pH values that resemble the redshift of optical absorption superiority. …”
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11834
Three-dimensional effects on cracked components under anti-plane loading
Published 2015-06-01“…Calculation of the SED shows that the position of the maximum SED is independent of plate thickness. …”
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11835
Magnetotelluric Sampling and Geoelectric Hazard Estimation: Are National‐Scale Surveys Sufficient?
Published 2021-07-01“…We find that the use of USArray‐style MT sampling alone provides a useful first‐order estimate of integrated geoelectric fields along electrical transmission lines. …”
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11836
Reverberation Evidence for Stream Collision and Delayed Disk Formation in Tidal Disruption Events
Published 2025-01-01“…We found that over half of them exhibit a positive lag by a few days in UV/optical bands, indicating that their inferred sizes are significantly larger than the envelope sizes in reprocessing. …”
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11837
Estimating the Asphalt Binder Film Thickness Using Scanning Electron Microscope and Energy Dispersive X-Ray Spectroscopy
Published 2021-01-01“…It was also found that the asphalt binder film does exist as a separate entity inside the asphalt mastic in the form of a band around the filler particles as non-absorbed binder, which fills the approximate distance of 0.5 to 2.5 microns among filler particles.…”
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11838
Typhoon Maria Precipitation Retrieval and Evolution Based on the Infrared Brightness Temperature of the Feng-Yun 4A/Advanced Geosynchronous Radiation Imager
Published 2020-01-01“…Based on the preliminary experimental “quantification” evaluation index, we concluded that the method adopted in this paper can be used to retrieve precipitation in infrared data and to retrieve the spiral cloud rain bands of a typhoon. Finally, based on the AGRI channel brightness temperature of a 10.8-micron window channel, we applied the membership degree information of a typhoon’s dominant cloud system from the fuzzy c-means (FCM) clustering method to modify precipitation retrieval results. …”
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11839
The usefulness of automated high frequency ultrasound image analysis in atopic dermatitis staging
Published 2025-01-01“…Especially in the case of atopic dermatitis, where the formation of a subepidermal low echogenic band (SLEB) may serve as an independent indicator of the effects of treatment, the use of ultrasound is of particular interest. …”
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11840
Fracture behavior of a thermoplastic polyolefin (TPO) under airbag deployment conditions evaluated through Reversed Charpy tests
Published 2025-01-01“…Additionally, quasi-static tensile, tear and single-edge notch bending (SENB) tests were performed. Yield stresses obtained with Reversed Charpy were lower than those obtained with tensile tests, due to the higher shear stresses and plastic deformation promoted by plane stress conditions during Reversed Charpy tests, highlighting the importance not only of temperature and strain rate, but also of the geometry of the specimen, when characterizing materials for instrument panel construction. …”
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