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In order to improve recognition accuracy of partial discharge pattern of mine-used dry-type transformer, a partial discharge pattern recognition method for mine-used dry-type transformer was proposed. Firstly, orthogonal matching pursuit algorithm is used to denoise original partial discharge signal, which can retain useful information of the original partial discharge signal to the greatest extent. Then, autoregressive coefficient features of the partial discharge signal after denoising are extracted by autoregressive model. Finally, the autoregressive coefficient features are input into random forest integrated classifier to recognize partial discharge pattern. The experimental result shows that average recognition accuracy of the method is 98%.

Because of the optimal design of ploy-rib belt plays an important role in improving the performance of the car,obtaining and analyzing ploy-rib belt motion information is becoming the hotspot studied by researchers. For the shortage that the poly-rib belt need be simplify existed in the dynamic modeling and simulation,the digital image processing techniques are adopted to obtain the dynamic information of engine ploy-rib belt. Firstly,a camera is applied in tracking and recording the artificial marking signs on the ploy-rib belt. Secondly,the location information of the making signs is acquired by digital image processing techniques. At last,the marking signs that have become several kinds of typically deformable are recognized by using the this algorithm and Hough transform detection method,then comparing the errors between the two methods and analyzing correlation of the dynamic data which is obtained by the experiment and the laser rangefinder. The experiment results show that the dynamic information on engine ploy-rib belt can be obtained precisely by using the proposed method.

This study is designed to investigate the effect of low temperature plasma (LTP) on the apoptosis of CNE‐2Z cell (human nasopharyngeal carcinoma cell line) and the potential mechanisms. We find out that LTP provoked the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in CNE‐2Z cells and significantly inhibit the cell viability and induce cell apoptosis. Furthermore, the antioxidant N‐acetyl cysteine (NAC) almost completely blocked LTP‐induced apoptosis. LTP triggered mitochondrial and endoplasmic reticulum (ER) stress‐induced apoptotic pathways indicated by significant upregulation of CHOP, p53, and Bax‐to‐Bcl‐2 ratio. This work will provide the molecular theoretical basis of clinical application of LTP for the treatment of human nasopharyngeal carcinoma. [ABSTRACT FROM AUTHOR]

A Zn and Pd co-modified TiO2 photocatalyst exhibits remarkably enhanced photocatalytic activity upon reduction of CO2 into CH4. Owing to the synergistic effect of unique O–Zn–Cl and O–Pd–O species, TiO2–PdX–ZnY presents enhanced visible absorption and efficient charge carrier separation. It can be deduced from theoretical calculations and experimental results that the energy levels of O–Zn–Cl and O–Pd–O satisfy the redox potential of CO2 reduction, improving the photocatalytic performance. These results suggest that introducing multi-surface species to produce synergetic effects is a feasible route for efficient photocatalysis. [ABSTRACT FROM AUTHOR]

Correction for 'Synergistic effects of Zn and Pd species in TiO2 towards efficient photo-reduction of CO2 into CH4' by Yanlong Yu et al., New J. Chem., 2018, 42, 483–488, DOI: 10.1039/C7NJ03305B. [ABSTRACT FROM AUTHOR]

A Zn and Pd co-modified TiO2 photocatalyst exhibits remarkably enhanced photocatalytic activity upon reduction of CO2 into CH4. Owing to the synergistic effect of unique O–Zn–Cl and O–Pd–O species, TiO2–PdX–ZnY presents enhanced visible absorption and efficient charge carrier separation. It can be deduced from theoretical calculations and experimental results that the energy levels of O–Zn–Cl and O–Pd–O satisfy the redox potential of CO2 reduction, improving the photocatalytic performance. These results suggest that introducing multi-surface species to produce synergetic effects is a feasible route for efficient photocatalysis. [ABSTRACT FROM AUTHOR]

Correction for 'Synergistic effects of Zn and Pd species in TiO2 towards efficient photo-reduction of CO2 into CH4' by Yanlong Yu et al., New J. Chem., 2018, 42, 483–488, DOI: 10.1039/C7NJ03305B. [ABSTRACT FROM AUTHOR]