Designing noble metal‐free anode catalysts for photo‐assisted direct methanol fuels cells still remains a significant challenge. In this report, CoSx/NiSx heterojunction was prepared by a two‐step method containing room temperature coordination reaction and calcination using L‐cysteine as both organic ligands and sulfur sources. The as‐prepared CoSx/NiSx heterojunction displayed a significant enhancement in the methanol electrocatalytic oxidation activity under the light irradiation by combining their electrocatalytic and photocatalytic properties. The photocatalytic process was discussed in detail to explore the photo‐assisted enhancement mechanism. The electrochemical and photochemical results indicated that, the synergistic effect of electro‐ and photocatalytic reaction contributes to the enhanced catalytic performance. This work provides a new paradigm to improve the methanol electrocatalytic activity of noble metal‐free semiconductor catalyst. Our proposed noble metal‐free CoSx/NiSx heterojunction will have potential use in photo‐assisted direct methanol fuel cells.

Landslides in nature are harmful to economic development and people’s lives and cause irreparable losses to the environment. With the application of image detection technology and intelligent algorithm, a new way for landslide detection is proposed to achieve effective detection and identification of hazards. This paper takes the landslide as the data set, carries on the noise reduction, the image expansion, and the image segmentation processing to the image, and extracts the object region information. The quantitative description of the azimuth displacement and displacement change of the crack curve is completed in this paper. This method is suitable for 3D simulation model, sand and stone model, soil model, and the sliding test results of Panzhihua Flight Field, which proves that the design method is effective. Experiments show that when sliding occurs, the texture and color become chaotic, the usual mountain becomes more in the regular state, and the extraction of features is very different. The method has better recognition effect for the hillside covered with vegetation, the recognition time is short, and the recognition rate can reach 90%.

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Orbis Litterarum is an international journal devoted to the study of European, American and related literature. This study analyzes the journal publications from 1983 to 2020 in a bibliometric approach after extracting bibliography data from the Web of Science database. The study covered all the published articles of Orbis Litterarum from 1983 until 2020, aiming to inform readers and researchers about the journal with both quantitative and qualitative data. The bibliometric study includes the most cited sources, top contributing countries, universities and authors, research fields and publication dynamics. Hopefully, it may help researchers to optimize their research decisions for in-depth studies on literary scholarship, criticism and theory.

The tectonic events caused by paleoearthquakes have a good response in sedimentary filling. Outcrops and cores from the Chang-7 Member of the Late Triassic Yanchang Formation, Ordos Basin in Northern China, yield a wide variety of soft sedimentary deformation structures (SSDSs), many of which are laterally extensive for more than 150 km. They include various types of folds, soft sediment liquefaction deformation (liquefied sandstone dyke, liquefied breccia), gravity-driven deformation (load structures, ball-and-pillow structures), hydraplastic deformation (loop bedding, convolute deformation) and brittle deformation (intrastratal faults and stair-step microfaults, microcracks). In most cases, deformation is represented by hybrid brittle-ductile structures exhibiting lateral variation in deformation style. These occur in delta front to semideep to deep lake sands and mudstones (shales). The seismites recognized in outcrops and cores indicate earthquakes with magnitudes between 6 and 8, which are interpreted as a response to splicing collision orogenic events of the South China Block (SCB) and North China Block (NCB) during the Late Triassic period. Systematic study of the spatial and temporal distribution of these seismites improves the understanding of the tectonic context and evolutionary history of sedimentary basements. This study can provide a new perspective on the evolution of tectonic activities in the basin.