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Narcissistic personality disorder is a severance mental health issue, and affect person from both biological and social aspects. The article reviewed the latest international researches about the etiology, subtypes of narcissistic personality disorder, and related treatment strategies of narcissistic personality disorder. Narcissistic personality disorder is defined by an inflated self-importance, eagerness for admiration, and lack of compassion. It encompasses two subtypes, grandiose and vulnerable. Impact of narcissism on individuals' self-esteem, Self Control was examined through reviewing prior research on Chinese population. Moreover, correlation between parenting style, narcissistic personality and parent child relationship was also discussed. The result revealed that the formation of narcissistic personality disorder was influenced by environmental and social factors. Long-term psychological therapy is the main treatment for narcissistic personality disorder. Medication is not a primary treatment option, and certain antidepressants may exacerbate symptoms. The challenge and study directions have been identified in the end, abundant clinical trails on biological study of narcissistic personality disorder are needed, and the further researches on subtypes of narcissistic personality disorder are expected

Aiming at the disconnection between theory and practice in the experimental teaching of electrical and electronic technology courses, students do not have a deep understanding of knowledge and cannot exercise their practical ability. This paper puts forward the application of simulation software to the experimental teaching process of electrical and electronic technology to form an experimental teaching model combining theory, simulation and practice. The results show that the proposed teaching method can deepen the students' understanding of theoretical knowledge, improve their interest in learning, enhance their innovative application ability, and significantly improve the teaching quality.

During the “14th Five-Year Plan” period (2021-2025), China will enter the era of mass tourism, and the development of tourism industry is still in an important strategic opportunity period, but there are new opportunities and challenges. The article analyses the development status of cultural tourism in China and the development trend of China’s cultural tourism industry, and proposes countermeasures for the problems faced by China’s cultural tourism industry during the “14th Five-Year Plan” period from the aspects of theme development, industry chain building, resource utilization and cultural creativity.

Current experiments show that the TATB-based polymer bonded explosives (PBX) will experience irreversible growth when suffered temperature cycling load. Although some studies have already been done on this, the cause of irreversible growth is still confusing, and the mechanism is not clear. In order to study the irreversible growth of PBX under temperature cycling load, an thermal-viscoelastic model is established, Based on the Burgers model which considering the influence of different temperatures on the creep properties of PBX. The analysis shows that the irreversible growth of PBX produced by the different creep properties of high and low temperature during the thermal cycling. Comparing with low temperature, the creep rate of PBX is faster and the deformation is larger at high temperature, which lead to the irreversible growth of PBX.

After years of research and practice, ICD well completion technology has become a relatively mature completion technology, and has been successfully applied in hundreds of horizontal Wells abroad. However, due to many factors affecting ICD effect, mature evaluation methods have not been completely established. At present, the main index of ICD water control development effect is to balance inflow profile and inhibit water production, and the evaluation factors involve reservoir, process and equipment structure. This paper summarizes the factors influencing the effects of ICD, using orthogonal experiment design method to carry on the comprehensive evaluation, and puts forward the corresponding Suggestions

In the downhole operation of horizontal Wells, the pipe string is subjected to the combined action of many kinds of loads. The pipe string may bend sinusoidal or spiral under the action of axial compressive stress, which will also increase the friction between the pipe string and the wellbore wall. Because of the existence of friction, to the milling, salvage, unstuck, sand and other construction to bring adverse effects. This paper describes the characteristics of horizontal well in fishing, sand washing, unlocking and casing milling. The paper introduces the development of horizontal well application, such as drilling technology matching for complex structure wells, high-level completion of lateral Wells, radial lateral wells in low permeability reservoirs and supporting technology for completion and production of horizontal wells.

The payment card industry has grown increasingly with the development of online business. However, payment card fraud has become a serious problem around the world. Companies and banks lost huge amounts of dollars annually due to fraud. It is necessary to investigate a learning algorithm to detect fraud in finance transaction automatically. In this paper, we put forward a fraud detection algorithm by using neural network. The neural network model and final result will be described to show the superiority of this model.

In response to the global energy crisis, the integrated energy system has become an important part of the energy revolution. Aiming at the economic operation of the Integrated Energy System (IES), this paper proposes a system optimization planning model that takes the economic and environmental optimization as the goal and establishes a coupled capacity planning system, and jointly optimizes the capacity configuration and configuration of a single energy supply module. Power output to pursue maximum benefit. In order to illustrate the advantages of this method, on the basis of simulation, a dynamic programming method is used to solve the model. Finally, the simulation results show the effectiveness of the planning optimization model proposed in this paper, and provide a new path for solving the optimization problem of integrated energy system planning.

CO2 injection to strengthen shale gas development is a new technology to improve shale gas recovery and realize geologic sequestration. Many scholars have studied these aspects of this technology: mechanism of CO2 displacement CH4, CO2 and CH4 adsorption capacity, affecting factors of shale adsorption CO2, CO2 displacement numerical simulation, and supercritical CO2 flooding CH4 advantages. Research shows that CO2 can exchange CH4 in shale formations, improve shale gas recovery, on the other hand shale formations is suitable for CO2 sequestration because shale gas reservoir is compact. The supercritical CO2 has advantages such as large fluid diffusion coefficient, CO2 dissolution in water to form carbonic acid that can effectively improve the formation pore permeability etc., so the displacement efficiency of supercritical CO2 is high. But at present the technology study mainly focus on laboratory and numerical simulation, there is still a big gap to industrial application, need to study combined effect of influence factors, suitable CO2 injection parameter in different shale gas reservoir, CO2 injection risk and solutions etc.

The main objective of this study is to measure the distribution of machining stress by the instrumented indentation test (IIT). Finite element method (FEM) was performed to investigate the influences of tensile stress and compression stress on the indentation response (Load-displacement curves, average contact pressure and contact area). The thicknesses of machining stress layer under turning and grinding processing ways were obtained by layer stripping method based on instrumented indentation technique. Results indicate that the machining stress brings complex stress state. Under the same load, the corresponding indentation displacement increases while the indentation plastic work, contact area and average contact pressure decrease with the increases of machining stress (from compressive stress to tensile stress). Tensile stress does just the opposite. In addition, the layer thicknesses of the machining stress for turning and grinding members were measured by instrumented indentation method, results agree with X-ray method and demonstrate the effectiveness of the proposed approach.

In order to compare the environmental benefits of two emission reduction measures, i.e. using low-sulphur oil and shore power technology, this paper takes the ships arriving at Guangzhou port as an example, based on the ship data of entry and departure visa of Guangzhou port in 2015, and uses statistical analysis to determine the relationship between different ship types of diesel engines, ship berthing time and ship deadweight tonnage, and based on the use of low-sulphur oil and berthing using shore power air pollutants emission On the basis of emission factors and diesel engine load, the environmental benefits of the two emission reduction measures are calculated by the calculation model established by the dynamic method. The results show that:(1) in 2015, when ships berthing in Guangzhou port used low-sulphur oil with sulphur content of 0.5%, PM10, NOx, SOx and CO2 decreased by 231.6t, 165.5t, 2039.3t and 0t respectively, when using low-sulphur oil with sulphur content of 0.1%, PM10, NOX, SOx and CO2 decreased by 244.1t, 517.1t, 2382.7t and 0t respectively. when ships berthing in Guangzhou port used shore power, PM, NOx, SOx and CO2 decreased by 283.8t, 2975.6t, 2407.7t and - 3782.2t respectively. (2) compared with the use of low sulphur oil, the use of shore power by berthing ships has a significant advantage in NOx emission reduction. In terms of particulate matter, SOX and CO2 emission reduction, there is no significant difference between the two measures.

With the development of smart power distribution technology in the future, a large range of power supply load (such as distributed wind power generation) will appear on the power receiving end. When distributed wind power is connected to the power grid on a large scale, it will have a certain impact on the safe and stable operation of the power grid. However, if the wind power output characteristics can be analyzed and the wind power output is properly regulated, the one-way flow of power from the distribution network to the user side will be broken, so that the future "network-load" has dual interaction characteristics based on response and substantial power exchange.

Silica nano-particles are suspended in the colloidal silica and can be induced to gradually gel after the PH value changes. Thus colloidal silica can be utilized to rapidly seep through loose calcareous sand, and the silicon gel is gradually formed to bond sand particles. However, based on observation by scanning electron microscope(SEM), there are a lot of microcracks in the silica gel, which reduces the strength of the sand-gel composite. Therefore, in order to suppress crack growth, wood fibers are dispersed in the colloidal silica which still can seep through calcareous sand. 18 silicon-gel stabilized sand samples were prepared for tri-axial tests, where the concentration of colloidal silica is 20%, and wood fiber concentrations are 0%, 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, respectively. The results show that:(1) there exists an optimum ratio of wood fiber to colloidal silica, that is, as the concentration of wood fiber increases, the strength represented by the peak value of deviator stress rises first and then falls; (2) there are opposite trends between the two strength parameters, internal friction angle and cohesion, that is, when the wood fiber concentration is 0.04%, the cohesion reaches the maximum value and the internal friction angle reaches the minimum value; (3) The photos by SEM show that, there are wood fibers on the inner wall of the crack in the silica gel, which may reduce the extent of crack propagation and contribute to the strength of stabilized sand samples.

In the downstream tidal section of the Yangtze River, nine kinds of combinations of hydrological environmental conditions are considered, including the annual average runoff flow, the annual average peak flow and the flood control design flow, as well as the three conditions of spring, medium and neap tides. By means of the numerical simulation method, the effective performance parameter values for conventional intercepting boom under different environmental conditions are obtained by simulating 9 kinds of maximum current speed to withstand, Max.CS, respectively. The results show that, in the downstream fast current tidal section of the Yangtze River, for the boom performance index of Max.CS, the relatively extensive applicability value should be 3.0kn under the condition of the annual average runoff flow; 4.0Kn should be selected under the condition of the annual average peak flow; and 4.5Kn should be selected under the flood control design flow. This study can provide technical support for the design, selection and use of booms in downstream waters of the Yangtze River.