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Introduction In patients with programmable CSF shunt valves, the risk of unintentional valve adjustment associated with the environmental magnetic influence is ever present. We tested whether the iPad 3 with Smart Cover is capable of changing the setting of individual programmable valves ex vivo using direct fluoroscopic visualization. Methods The following valves were tested: Strata NSC Adjustable...
A combination of recombinant FKP and α-(1→3)-fucosyltransferase allows the facile synthesis of the sialyl Lewis X tetrasaccharide glycan and its derivatives in excellent yield. In this system, the universal fucosyl donor, guanidine 5′-diphosphate-β-l-fucose (GDP-fucose), or its analogues can be generated in situ by cofactor recycling using pyruvate kinase.
In order to solve the problem of betel nuts' misclassification by manual ways, an automatic classification method based on computer vision is proposed in this paper. The new method achieves automatic classification by extracting color features, shape features and texture features of betel nuts. Experiments show that this method has good effect, high speed and can satisfy the real-time classification...
Focus on differences in the paper material, printing-ink and printing technology between genuine banknotes and counterfeits, this paper presents a new method to identify the authenticity of banknotes based on the texture roughness. Firstly, we define the texture roughness parameters, and then extract these parameters from illumination transmission images of RMB. Finally, simulation experiment shows...
Two-dimensional thresholding method behaves well in segmenting images of low signal-to-noise ratio, but itpsilas time consuming. In this paper, a fast algorithm is proposed based on recursive formula and search strategy. Firstly, this paper represents the concept of optimal 2-D entropy function. Then proposes an undistorted fast recursion method and a distorted optimal search strategy, so the proposed...
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