The effect of alkali metal modification on g-C ₃N ₄ photocatalyst was systematically studied. The density functional theory is used to explain the microscopic mechanism of different alkali metal modification on improving photocatalytic activity from the various angles of geometry and electronic structure. The results show that the binding energies of alkali metals and g-C ₃N ₄ become weaker and weaker with the increase of the number of extra-nuclear electronic layers of Li, Na, K and Rb atoms, and the influence on the structure of g-C ₃N ₄ is weaker and weaker. The electronic structure analysis shows that Li, Na, and K atoms have an activation effect on g-C ₃N ₄, and Rb atoms have a passivation effect on the surface of g-C ₃N ₄. At the same time, the adsorption of N ₂ molecules on M-g-C ₃N ₄ (M=Li, Na, K, Rb) is simulated, and the interaction mechanism between N ₂ molecules and alkali metals is understood. By analyzing the adsorption energy, structural parameters and electronic properties of N ₂ adsorption, it is found that the influence of Li and Na atoms on N ₂ adsorption is greater. The N—N bond of N ₂ is elongated, and the K and Rb atoms have little effect on N ₂. Alkali metal modified g-C ₃N ₄ is more beneficial for the adsorption of N ₂ molecules than pure g-C ₃N ₄, but as the atomic radius of the alkali metal increases, the adsorption capacity becomes weaker and weaker, and the electron transfer becomes less and less. That is to say, the ability of activating N ₂ molecule decreases in the order of Li, Na, K and Rb.

Based on the Kuznets curve (EKC curve) model, the environment-income logarithmic model with cubic terms is constructed, and the four types of regional pollution indicators data including water pollution, air pollution and solid waste pollution in China from 2000 to 2014 are utilized. And the relevant data of environmental monitoring in Liaoning Province. The regression curve with the best fitting degree was obtained, and the data of the whole country and Liaoning Province in 2015 were verified. The relationship between environmental pollution indicators and economic growth (per capita GDP) in Liaoning Province and the whole country was analyzed and forecasted.The results show that, both the Liaoning Province and the whole country, with the increase in per capita GDP, the per capita wastewater discharge and smoke dust emissions increase, and the per capita chemical oxygen demand emissions and sulfur dioxide emissions decrease.

he hydrogen desulfurization of four kinds of low-quality diesel oils using HPL-1 as was studied on a smallsized hydrogenation unit. The reaction kinetics and the effects of reaction temperature, reaction pressure, volume space velocity and volumetric hydrogen/oil ratio on desulfurization rate have been investigated. The results showed the optimal hydrodesulfurization condition as follows: reaction temperature 360 ℃, pressure 7.0 MPa, space velocity 1.0h^-1, and volumetric hydrogen/oil ratio 800:1. Under this condition, the lowquality diesel desulfurization rate can be reached up to 9657%. Moreover, a 0.5 order kinetic model for lowquality diesel was setabilished based on the factors of pressure, hydrogen/oil ratio and space velocity parameters correction. The results indicate that the experimental values and simulation values are in good coincide for four kinds of low-quality diesel sulfur content.

Based on a huge number of literatures about income satisfaction and measure of income satisfaction, combined with the actual situation in Liaoning province, a household income satisfaction measure scale in Liaoning province were designed, and then a household income satisfaction measure model in Liaoning province was built. Through the use of factor analysis, four factors that affected the satisfaction degree of family income in Liaoning province were extracted. They were self value realization factor, family expenses factor, family income factor and social environment factor. The results show that residents in Liaoning province were dissatisfied with the level of household income.

Thirty indexes were chose from company profits quality. The nine factors were extracted by factor analysis method. Then the finance performance of the medicine listed industry was evaluated in China by cluster analysis. The results show that the enterprise asset utilization ability, main business profitability and the ability to collect cash were weak.

In this work, the algae rich extract and probiotics ice cream is prepared using the soybean meal extract as the nutrients, and the fermentation liquor that containing the viable bifidobacterium as the additive. The optimal fermentation conditions and the optimal composition of the stabilizers and additives for algae juice are studied. The results indicate the optimal fermentation condition is with the mass fraction of fermentation algae juice is 60%, the mass fraction of bifidobacterium fermentation broth is 5%, fermentation temperature 37 ℃, fermentation time 12 h.The stabilizer of algae juice:the mass fraction of pectin is 0.15%,the mass fraction of propylene glycol alginate is 0.10%,the mass fraction of xanthan gum is 0.10%,the mass fraction of monasodium orthophosphate is 0.05%.The additives of algae juice:the mass fraction of fruit essence is 2%,the mass fraction of bee honey is 6%,the mass fraction of granulated sugar is 6%.This prepared product is a natural health food, which complies with the food healthy standard.

With increasingly intensified competition in the education and training industry, how to exist in the competition for new training enterprises has become a problem which they should face. During the period of education and training industry entrepreneurship, the important management elements were provided. The education training industry took Ordos for example, through the research and visit to the local education training institutions, the relative data were concluded and analyzed, and the key factors on the influencing local education training were drawn in the success of the business enterprise. And the countermeasures and suggestions in concrete implementation process were proposed.

In small current grounding system, determining singlephase grounding fault lines is quick a key question for realizing protection of power distribution net. Studies at the paper as follows was outspreads: a method of malfunction lineselection using the size and direction of zero sequence full current was advanced in neutral point indirect grounding system on the base of studying malfunction lineselection methods. Besides, a new method of lineselection using zero sequence transient electric charges for identifying singlephase grounding fault was put forward. This method is suit for neutral point to the ground via arcsuppression coil system. Computer simulation results indicate that the method has the merit of high lineselection accuracy rate and is propitious to implement microcomputer lineselection devices.

The spatial filter measurement principle of flow velocity was obtained by point charge mathematical model of the electrostatic sensor inserted, and signal cut-off frequency was acquired with “3dB” principle during real-time measuring flow velocity. Experiments prove that the spatial filter measurement velocity principle of inducement probe is feasible, and a set of experiment equipment was made-up to measure the solid phase velocity of gas-solid two phase flow, with which the spatial filter velocity may be measured in range of 25 m/s. The measured spatial filter velocity was calibrated by the correlation velocity of ring electrostatic sensor. It may be obtained from the measurement results that the deduced velocity measurement model of spatial filter method may complete measuring solid phase velocity in wider range.

The main carriers of national innovation capacity are the provinces which gather the technological, economic, and cultural, and the strength of provincial innovation capacity indicates the strength of the national innovation capability. So the key to the improvement of the national innovation capacity is to enhance the innovation capacity of each province. Using the statistical software SPSS Statistics, the statistics with principal component analysis method was analyzed, and also the innovation capability for our countrys on 31 provinces and municipalities was analyzed and sorted. According to evaluate results, the policy recommendations related to provide better ideas for economic development of each province was put forwarded.

It is necessary to calculate natural gas thermophysical property parameters in the water power and thermodynamic calculation of pipelines. The method of solving each physical property parameter of natural gas and solving process were introduced in detail. The compression factor of nitrogen gas was obtained by using Van der Waals equation, RKS equation, P-R equation and BWRS equation respectively. It is concluded from the comparison of the experiment data that as a two-parameter cubic equation, the P-R has more accuracy than that of the Van der Waals and the RKS equation, but slightly lower accuracy than that of BWRS equation. But P-R equation has less number of parameters and is easier to compute and determine parameters. Therefore, the P-R equation gets an extensive application in the area of thermophysical property calculation.