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Lucaogou Formation in the Santanghu Basin is a special lacustrine fine-grained sedimentary deposits rich in volcanic debris and carbonate, with abundant shale oil resources. However, understanding of shale oil characteristics and genesis remains unclear. Lithofacies, sedimentary environment, and formation mechanisms of tuffaceous shale oil are investigated based on core and thin section observations, X-ray diffraction, field emission SEM and geochemical analysis. Results show that three mixed lithofacies types are developed in Lucaogou Formation: blocky tuff, laminated tuffaceous dolomite, and laminated dolomitic tuff. These lithofacies types are characterized by high content of felsic and dolostone, widespread organic matter, and low clay content. Formation of tuffaceous shale oil sweet spots is primarily influenced by four factors: inputting of volcanic ash as a high-quality source rocks and reservoirs provides good material basis; devitrification of volcanic glass, calcitization, and dissolution are crucial for formation of reservoirs; expulsion of source rocks with high-abundance organic matter expulsion facilitates migration and accumulation of hydrocarbon in adjacent reservoirs; fracture development improves reservoir permeability to form highly productive sweet spots. By analyzing characteristics and genesis of tuffaceous shale oil, the main controlling factors of reservoir physical property and oil saturation are clarified, which is of great significance for selection of shale oil exploration zones.

In order to further investigate the dosing scheme for circulating water in the steel industry，the spatial and temporal distribution of different water quality types was analyzed using principal component analysis. Moreover， the scaling index method was used to analyse the tendency of scaling in five regions under different water quality types and different concentration multiples to determine the dosing scheme. The principal component analysis showed that：groundwater was mainly affected by calcium hardness，conductivity，total alkali and chloride ions，while river water or municipal water was mainly affected by total iron and turbidity；the scaling index method shows that：groundwater was scaling for supplementary water，while river water or municipal water was corrosive for supplementary water；it was recommended that the concentration factor was 4-5 when groundwater was supplementary water，and 3-4 when river water or municipal water was supplementary water. Based on the type of water quality and the concentration factor in each area，the recommended dosing plan for each area is optimized.

ObjectiveTo provide the basis for dealing with similar incidents in the future， an outbreak of foodborne illness caused by the consumption of bread contaminated with Salmonella enteritidis was investigated.MethodsDescriptive epidemiological methods were used to analyze the clinical characteristics， epidemiological distribution and related risk factors of the cases. The etiological food was determined by retrospective cohort study. The biological samples， food remains and environmental samples of the cases and canteen employees were detected by laboratory testing. The causes of the outbreak were comprehensively analyzed based on the results of epidemiological investigation， laboratory tests and sanitary investigation.ResultsRetrospective cohort study showed that a batch of pre-packaged bread produced by a food factory in Chongqing on May 20， 2021 was the suspicious food. A total of 73 people ate the suspicious bread in this incident， and 55 of them got ill with a morbidity rate of 75.34% and a median incubation period of 15 h. At the same time， Salmonella enteritidis was detected in food remains， related environmental samples and anal swabs of patients.ConclusionThe incident was an outbreak of foodborne disease caused by bread contaminated with Salmonella enteritidis.

Macrobrachium nipponense is a major farmed species freshwater shrimp in China and its genetic diversity is of high value in aquaculture. The construction of the Three Gorges Project has slowed down the water velocity in the Three Gorges Reservoir (TGR) and made the water more clear, which is more favourable for the survival and reproduction of M. nipponense. However, there are lack of studies on the genetic diversity of M. nipponense populations in the TGR. In this study, mitochondrial COI gene sequences were used as molecular marker to analyze the genetic diversity, genetic differentiation and historical demography of eight M. nipponense populations in the TGR. The results showed that the M. nipponense populations in TGR have high genetic diversity. There was some genetic differentiation between the four populations in lower reaches of the TGR and four populations in the upper reaches of the TGR. We also found that there was a significant correlation between genetic distance and geographical distance among the M. nipponense populations in the TGR. The M. nipponense population in the TGR has experienced population reduction in the recent year, which might be related to the ice age movement in the Little Ice Age and human activities. This study provides a theoretical basis for the rational development and protection of M. nipponense resources in the TGR.

Based on random vibration theory and fatigue analysis method in frequency domain,with finite element software to construct the battery pack failure model of random vibration fatigue analysis and to calculate the fatigue life of the structure,the analysis results are in good agreement with the test results. Analyze the failure mechanism of the structure and carry out structural design improvement,the simulation and test results show that the fatigue life of the improvement scheme is significantly improved,and it has better anti vibration durability.

Objective To investigate the expression of β1, 3-N-acetylglucosaminyltransferase-3 gene (B3GNT3) in non-small cell lung cancer (NSCLC) tissues and its clinical significance. Methods The expression of B3GNT3 gene was analyzed by online TCGA database. The expressions of B3GNT3 protein in NSCLC tissues (n=60) and normal lung tissues (n=22) were detected by Western blot and immunohistochemical method. The relationship between the expression of B3GNT3 protein and the clinicopathological features of NSCLC patients was analyzed. Results The B3GNT3 expression in NSCLC tissues was significantly higher than that in normal lung tissues (P < 0.01). The positive expression of B3GNT3 protein was not associated with age, gender, smoking status, race or TNM stage (P > 0.05). The overall survival time of NSCLC patients with high expression of B3GNT3 protein was shorter than that with low expression of B3GNT3 protein (P < 0.05). Conclusion The expression of B3GNT3 protein is highly expressed in NSCLC tissues, and the expression level of B3GNT3 protein is associated with the prognosis of NSCLC patients.

In this paper, an experimental method of magneto-optical spin Hall effect of light (MOSHEL) based on thermo-optical control is designed. First, we design and implement a pilot experiment—the SHEL experiment controlled by thermo-optical. According to the experiment, it is concluded that the increase of the temperature of the thermo-optical medium will have an important influence on the corresponding thermo-optical spin Hall effect of light (TOSHEL). Accordingly, we designed a device that controls the SHEL in magneto-optical-thermo-optical (MO-TO) two-dimension that uses the thermo-optical effect to simultaneously control the intrinsic TOSHEL and MOSHEL.