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This article examines the application of memetics as a valuable and manageable framework for cultural studies. Specifically, it delves into the memes associated with Roman "Pietas" and their impact on the ideological, ethical and political landscape of Ancient Rome. Utilizing historical discourse excerpts, the study aims to illustrate the evolutionary processes and distinctive characteristics of memes within a particular cultural meme complex.

In order to study the feasibility of frequency conversion of electric feedwater pump in nuclear power plant, and to provide reference for the improvement of electric feedwater pump in nuclear power plant and new nuclear power plant, this paper discusses the technical and economic aspects, and analyzes the feasibility of frequency conversion transformation of electric feed pump in nuclear power plant. The results show that there is no technical difficulty for the electric feedwater pump of nuclear power plant from the technical point of view, and the economic analysis shows that it will take about 4 years to recover the cost for the frequency conversion of the electric feedwater pump of nuclear power plant. Therefore, the frequent participation in the peak load of the power grid units can be considered for transformation, For the nuclear power units that serve as the base load of the power grid, the cost can be recovered in about 6 years by eliminating the loss of capacity, and they can be retrofitted according to the needs of the plants themselves.

The thermal conductivity of waste heat removal system of CPR1000 unit is analyzed, and the rate margin of primary circuit is studied. In this study, the design parameters of a domestic CPR1000 residual heat removal system are used to study the primary loop temperature margin according to the different core states, and the primary loop temperature margin according to the different valve openings of the residual heat removal system (RRA) . The results show that the CPR1000 unit has a large margin in cooling down, but there is no room for improvement in the process of heating up. Therefore, it is necessary for CPR1000 unit to enhance the effect of primary loop heating and cooling rate on primary loop thermal stress, material and control operation of system equipment.

This study used cyanamide as the precursor and SiO2 as the template to prepare a layered structure g-C3N4, and characterized its crystal structure, morphology, optical performance, and electrochemical performance. Photocatalytic oxidation experiments were conducted on biomass derivatives (glucose).Orthogonal experiments were used to study the effects of factors such as illumination time, catalyst concentration, and photocurrent on photocatalytic reactions, and the reaction mechanism was explored. The product was qualitatively analyzed by gas chromatography-mass spectrometry (GC-MS) and quantitatively analyzed by High-performance liquid chromatography (HPLC). The results showed that the prepared g-C3N4 exhibited a layered structure with a band gap of 2.78 eV. When the catalyst concentration is 10mg, the photocurrent intensity is 4 A, and the illumination time is 24 hours, the glucose conversion rate is 49.09 %. The active group capture experiment shows that the main active species of g-C3N4 under visible light is ·O -. In this study, commercial P25 catalyst was used for photocatalytic oxidation of glucose under optimal conditions. The experimental results indicate that the catalytic oxidation performance of P25 for glucose is lower than that of layered structure g-C3N4.

Agriculture is the basic industry in China, and the development of agricultural listed companies is influenced by internal structure and corporate governance. An effective corporate governance structure can reduce costs to a certain extent, thereby increasing company value and overall strength. This paper selects the financial data of 2013-2018 A-share agricultural listed company in Shanghai and Shenzhen as a sample, puts forward the hypothesis through theoretical analysis, conducts Pearson correlation test on the sample data, and constructs multiple regression model to verify the three aspects of corporate governance structure. The relationship between corporate performance and research results shows that the relationship between equity concentration, equity balance, executive compensation and corporate performance of agricultural listed companies in China is in a “U” shape, and the size of the board of directors is significantly positively correlated with corporate performance to some extent, while the correlation between other governance structural factors and firm performance is not significant.

Based on the social cognition theory, this study explores how the median value of i-deals group influences team innovation through collective thriving, and the moderating role of chaxu climate in it. Through the empirical analysis of 367 questionnaires (70 supervisors’ questionnaires and 297 employees’ questionnaires) from 70 teams, it is proved that collective thriving has an mediating effect between team i-deals and team innovation, while chaxu climate positively regulates the positive impact of collective thriving on team innovation, that is, the higher the chaxu climate, the stronger the positive impact of collective thriving on team innovation.

The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP. The microscopic molecular dynamics simulation method is applied to the refrigeration system, and the properties of the pure substance and the mixed substance are simulated from the microscopic aspects to study the law of molecular condensation cooling, and the separation rate is simulated to obtain a more optimized scheme.

The error compensations on probe parameters were proposed to improve the measurement accuracy of an articulated arm coordinate measuring machines (AACMM). An AACMM’s probe parameters were analyzed and a measurement model including probe parameters solely was built. A simple cone socket components were used as a calibration tool and the LM algorithm was edited to solve the probe parameters. The results show that the average measurement error dealt with the probe parameters recalibration is 0.044mm, and its standard deviation is 0.050mm. They have increased by about 31% and 33% than those without recalibration.

The evaluation of interface mechanics was very useful for the design of thin solid film. According to the method of image, interface stresses and deformations of coating-substrate system were gained. Using this mathematical calculation model, the indentation test data was carried out and the results were analysed. Based on the mechanical model and test, the critical state of interface stresses from elastic deformation to plastic yield was evaluated. From experimental and calculating results, interface shear stress and normal stress had different affecting level for the coating failure under the same surface load. And a fitting relationship equation for the two stresses was also gained to determining the failure value in designing. The method of this paper could be used for thin film interface mechanics design and evaluation.