如何将生活真实转换为动人戏曲?

现实题材是当下戏曲创作不可回避的选题主要来源,不少作品却因其照搬生活、缺乏戏剧性而被诟病。一些现实生活中感人至深的真实事件和人物被搬上舞台后并未取得良好的效果,一方面需要创作者注意生活真实和艺术真实的差异,同时,更要尊重戏曲创作规律,并积极向传统借鉴学习,丰富现实题材戏曲创作的手段和表现力。

Motion Performance and Mooring System of a Floating Offshore Wind Turbine

The development of offshore wind farms was originally carried out in shallow water areas with fixed （seabed mounted） structures. However, countries with limited shallow water areas require innovative floating platforms to deploy wind turbines offshore in order to harness wind energy to generate electricity in deep seas. The performances of motion and mooring system dynamics are vital to designing a cost effective and durable floating platform. This paper describes a numerical model to simulate dynamic behavior of a new semi-submersible type floating offshore wind turbine （FOWT） system. The wind turbine was modeled as a wind block with a certain thrust coefficient, and the hydrodynamics and mooting system dynamics of the platform were calculated by SESAM soRware. The effect of change in environmental conditions on the dynamic response of the system under wave and wind loading was examined. The results indicate that the semi-submersible concept has excellent performance and SESAM could be an effective tool for floating wind turbine design and analysis.

The study of slip line field and upper bound method based on associated flow and non-associated flow rules

At present, associated flow rule of traditional plastic theory is adopted in the slip line field theory and upper bound method of geotechnical materials. So the stress characteristic line conforms to the velocity line. It is proved that geotechnical materials do not abide by the associated flow rule. It is impossible for the stress characteristic line to conform to the velocity line. Generalized plastic mechanics theoretically proved that plastic potential surface intersects the Mohr-Coulomb yield surface with an angle, so that the velocity line must be studied by non-associated flow rule. According to limit analysis theory, the theory of slip line field is put forward in this paper, and then the ultimate beating capacity of strip footing is obtained based on the associated flow rule and the non-associated flow nile individually. These two results are identical since the ultimate bearing capacity is independent of flow role. On the contrary, the velocity fields of associated and non-associated flow rules are different which shows the velocity field based on the associat- ed flow rule is incorrect.

Flexible HVDC Transformer for Next Generation Renewable Energy Industry

The growing demand on non-fossil fuel energy has escalated the desire for mega-scale renewable energy power generation, which can no longer be satisfied solely by relying on onshore renewable energy power plants. Outcomes from a recent project funded by the Sixth European Union Framework Programme （FP6）, Project ＂Upwind＂ concluded that larger offshore wind turbines （i.e., 〉 10 MW） are feasible and cost effective. It will be beneficial for such future large scale renewable energy power generators （i.e., large offshore turbines） and plant （i.e., large offshore wind farms） to have a dedicated high efficiency, robust, flexible and low cost power collection, transmission and distribution technology. Proposed in this paper is a compact and effective hybrid HVDC （high voltage direct current） transformer that allows realisation of a highly robust and financially rewarding next generation multi-terminal HVDC system for future offshore renewable energy power plant. This concept, potentially, allows the elimination or minimisation of the need for a centralised local offshore HVDC platform or substation in each wind farm, solar farm, or tidal farm. This paper discusses the study outcome of the proposed hybrid HVDC transformer and the application of a multi-terminal HVDC system in the renewable energy industry, compared to the existing HVAC and VSC （voltage source converters） type HVDC systems.

Long-term nitritation performance of ammonium-rich landfill leachate

This study presents a biological system combined upflow anaerobic sludge bed(UASB) with sequencing batch reactor(SBR) to treat ammonium-rich landfill leachate.The start-up and operation of the nitritation at low temperatures were investigated.The synergetic interaction of free ammonia(FA) inhibition on nitriteoxidizing bacteria(NOB) and process control was used to achieve nitritation in the SBR.It is demonstrated that nitritation was successfully started up in the SBR at low temperatures(14.0 ℃-18.2 ℃) by using FA inhibition coupled with process control,and then was maintained for 482 days at normal/low temperature.Although ammonia-oxidizing bacteria(AOB) and NOB co-existed within bacterial clusters in the SBR sludge,AOB were confirmed to be dominant nitrifying population species by scanning electron microscopic(SEM) observation and fluorescence in situ hybridization(FISH) analysis.This confirmation not only emphasized that cultivating the appropriate bacteria is essential for achieving stable nitritation performance,but it also revealed that NOB activity was strongly inhibited by FA rather than being eliminated altogether from the system.

Three Reversals in the Development of Metaphysics： Reflections on Heidegger＇s Theory of Metaphysics

So far, three reversals have occurred in the history of Western metaphysics. The first was the reversal from the ＂metaphysics of presence＂ represented by Platonism to the ＂metaphysics of subjectivity＂ represented by Descartes, Kant and Hegel. The second occurred within the framework of the metaphysics of subjectivity and marked the transformation from the ＂metaphysics of reason＂ represented by Descartes, Kant and Hegel to the ＂metaphysics of will＂ represented by Schopenhauer and Nietzsche. The third reversal was from the ＂metaphysics of being-there＂ of the earlier phase of Hcidegger＇s philosophy to his later ＂metaphysics of the world-fourfold.＂