1,166 research outputs found
EFFECTS OF ADDING CALCIUM CHLORIDE IN ELECTROLYTES ON THE REMOVAL EFFICIENCY OF HEAVY METALS IN SOIL BY VERTICAL ELECTRO-KINETIC METHOD
Soil heavy metal pollution is an important environmental issue, and the electro kinetic method has been considered as an effective remediation technology for removing heavy metals from soil. In electro kinetic study, the properties of the electrolyte such as pH value, electrical conductivity and surface tension are the essential factors affecting the soil remediation efficiency. A previous study has shown that the Effective Microorganisms (EM) could be a potential electrolyte for soil electro kinetic experiment. This study tested the effect of adding additional calcium chloride in EM combined with vertical electric flushing method on soil heavy metal removal. The test soil sample was collected from farmland polluted by heavy metals in Changhua County in Taiwan, and the soil mainly contained copper and zinc. After 21 days of vertical electric flushing study, the total copper removal rate followed the following order: EM+0.01M calcium chloride (54.8%) > EM (31.25%) > EM+0.05 M (19.67%). The total zinc removal rate followed the following order: EM (69.36%)> EM+0.01M calcium chloride (65.71%) > EM+0.05M calcium chloride (55.55%). Overall as the concentration of calcium chloride added to the EM bacterial solution increase. Overall, adding 0.01 M calcium chloride in EM could significantly improve the copper removal efficiency. But for zinc, adding calcium chloride does not significantly help the removal rate of zinc
Algebraic Quantum Error-Correction Codes
Based on the group structure of a unitary Lie algebra, a scheme is provided
to systematically and exhaustively generate quantum error correction codes,
including the additive and nonadditive codes. The syndromes in the process of
error-correction distinguished by different orthogonal vector subspaces, the
coset subspaces. Moreover, the generated codes can be classified into four
types with respect to the spinors in the unitary Lie algebra and a chosen
initial quantum state
Learning Compositional Visual Concepts with Mutual Consistency
Compositionality of semantic concepts in image synthesis and analysis is
appealing as it can help in decomposing known and generatively recomposing
unknown data. For instance, we may learn concepts of changing illumination,
geometry or albedo of a scene, and try to recombine them to generate physically
meaningful, but unseen data for training and testing. In practice however we
often do not have samples from the joint concept space available: We may have
data on illumination change in one data set and on geometric change in another
one without complete overlap. We pose the following question: How can we learn
two or more concepts jointly from different data sets with mutual consistency
where we do not have samples from the full joint space? We present a novel
answer in this paper based on cyclic consistency over multiple concepts,
represented individually by generative adversarial networks (GANs). Our method,
ConceptGAN, can be understood as a drop in for data augmentation to improve
resilience for real world applications. Qualitative and quantitative
evaluations demonstrate its efficacy in generating semantically meaningful
images, as well as one shot face verification as an example application.Comment: 10 pages, 8 figures, 4 tables, CVPR 201
Miniaturization of Branch-Line Coupler Using Composite Right/Left-Handed Transmission Lines with Novel Meander-shaped-slots CSSRR
A novel compact-size branch-line coupler using composite right/left-handed transmission lines is proposed in this paper. In order to obtain miniaturization, composite right/left-handed transmission lines with novel complementary split single ring resonators which are realized by loading a pair of meander-shaped-slots in the split of the ring are designed. This novel coupler occupies only 22.8% of the area of the conventional approach at 0.7 GHz. The proposed coupler can be implemented by using the standard printed-circuit-board etching processes without any implementation of lumped elements and via-holes, making it very useful for wireless communication systems. The agreement between measured and stimulated results validates the feasible configuration of the proposed coupler
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