154 research outputs found
G-CAME: Gaussian-Class Activation Mapping Explainer for Object Detectors
Nowadays, deep neural networks for object detection in images are very
prevalent. However, due to the complexity of these networks, users find it hard
to understand why these objects are detected by models. We proposed Gaussian
Class Activation Mapping Explainer (G-CAME), which generates a saliency map as
the explanation for object detection models. G-CAME can be considered a
CAM-based method that uses the activation maps of selected layers combined with
the Gaussian kernel to highlight the important regions in the image for the
predicted box. Compared with other Region-based methods, G-CAME can transcend
time constraints as it takes a very short time to explain an object. We also
evaluated our method qualitatively and quantitatively with YOLOX on the MS-COCO
2017 dataset and guided to apply G-CAME into the two-stage Faster-RCNN model.Comment: 10 figure
Asymptotically almost periodic solutions to parabolic equations on the real hyperbolic manifold
In this work we study the existence and the asymptotic behaviour of the
asymptotically almost periodic mild solutions of the vectorial parabolic
equations on the real hyperbolic manifold (). We will consider the vectorial laplace operator in the sense of
Ebin-Marsden's laplace operator. Our method is based on certain dispertive and
smoothing estimates of the semigroup generated by the linearized vectorial heat
equation and the fixed point argument. First, we prove the existence and the
uniqueness of the asymptotically almost periodic mild solution for the
linearized equations. Next, using the fixed point argument, we can pass from
linearized equations to semilinear equations to prove the existence,
uniqueness, exponential decay and stability of the solutions. Our abstract
results will be applied to the incompressible Navier-Stokes equation and the
semilinear vectorial heat equation.Comment: 20 pages. arXiv admin note: text overlap with arXiv:2101.0330
Transport Properties of a GaAs/InGaAs/GaAs Quantum Well: Temperature, Magnetic Field and Many-body Effects
We investigate the zero and finite temperature transport properties of a quasi-two-dimensional electron gas in a GaAs/InGaAs/GaAs quantum well under a magnetic field, taking into account many-body effects via a local-field correction. We consider the surface roughness, roughness-induced piezoelectric, remote charged impurity and homogenous background charged impurity scattering. The effects of the quantum well width, carrier density, temperature and local-field correction on resistance ratio are investigated. We also consider the dependence of the total mobility on the multiple scattering effect
Ultrasonic-Assisted Cathodic Plasma Electrolysis Approach for Producing of Graphene Nanosheets
In this chapter, we review on the production of graphene by ultrasonic-assisted cathodic plasma electrolysis approach which involves a combination process of conventional electrolysis and plasma at ambient pressure and moderate temperature. Firstly, we review on the techniques for electrochemical preparation of graphene. Then, we briefly describe plasma electrolysis approach for producing of graphene. The mechanism, advantages, and disadvantages of this technique are discussed in detail
Integrated rice-prawn farming in the Mekong Delta, Vietnam: a route towards sustainable and profitable farming systems?
Economic analysis and performance of the integrated rice-prawn farming systems in the Mekong Delta (Vietnam) are reviewed, including the problems and constraints of this integrated system technology
Green synthesis and crystal structure of 3-(benzo-thia-zol-2-yl)thio-phene.
The title compound, C11H7NS2, was prepared in high yield (87%) using a solvent-free microwave-assisted synthesis. The structure shows whole-mol-ecule disorder with occupancies for two orientations (A and B) of 0.4884 (10) and 0.5116 (10), respectively. The thio-phene and benzo-thia-zole rings are almost planar and make dihedral angles of 10.02 (18) and 12.54 (19)° for orientations A and B, respectively. Slipped π-π stacking between the aromatic rings, together with C-H⋯π, C-H⋯S and C-H⋯N inter-actions, result in a herringbone motif in the crystal packing
Integrated rice-prawn farming in the Mekong Delta, Vietnam: a route towards sustainable and profitable farming systems?
Integrated farming, Rice culture, Prawn culture, Farming systems, Mekong Delta, Viet Nam, Macrobrachium rosenbergii
A comprehensive study in efficacy of Vietnamese herbal extracts on whiteleg shrimp (<em>Penaeus vannamei</em>) against <em>Vibrio parahaemolyticus</em> causing acute hepatopancreatic necrosis disease (AHPND)
Traditional Vietnamese herbal species were examined for their antimicrobial activity and disease resistance in whiteleg shrimp. In-vitro screening, the extracts of ten herbs were conducted to test the inhibition ability against Vibrio parahaemolyticus, causing acute hepatopancreatic necrosis disease. The results showed that five out of ten herbal species, including Pithecellobium dulce, Melaleuca leucadendron, Eucalyptus globulus, Mimosa pirga, and Hibiscus sabdariffa displayed potent antibacterial activity. Besides, three types of extracts of H. sabdariffa, E. globulus, and M. pirga were coated to the pellet feed at a concentration of 1%. After 30 days of feeding, the whiteleg shrimp (Penaeus vannamei) were challenged by V. parahaemolyticus through immersion. The growth performance (such as growth rate in length and weight, survival rate), hematological parameters of total hemocytes (THC), hyaline hemocytes (HC), and granulocytes (GC), and hepatopancreas recovery under the treatments with herbal extracts of the whiteleg shrimp were significantly enhanced as compared with the control (without herbal extract). The mortality and the bacterial density in the hepatopancreas of shrimp decreased. Specifically, the mortality of shrimp in the treatment supplemented with the methanol extract of H. sabdariffa was the lowest, followed by M. pirga and E. globulus. The experimental results also indicated that H. sabdariffa, E. globulus, and M. pirga could improve immune parameters and disease resistance; therefore, they should be employed in sustainable shrimp, practical farming
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