Poetic Reconstruction of “Self-Centered” in the Cross-Cultural Theatre

In cross-cultural theaters of the drama field,it has become a universal trend to integrate tradition and modernity as well as China and the West in the cultural exchange between different nations.Such a normality brings some new opportunities to the dramatic creation of youth directors while posing greater challenges.As to opportunities,it can make the stage processing of directors more distinctive while enriching their aesthetic pursuits;the challenge lies in how to endow the work with contemporary expression without breaking away from tradition.Nowadays,more and more directors are seeking“poetic reconstruction”in cross-cultural theaters,and keen direction artists are exploring how to better express the connotation of their work,including the inner feelings of roles,their subconsciousness,and transmitting the unfinished meaningful words delicately at the special time and space offered by the stage,and make use of the unique vocabulary of directors to form new aesthetic experience and expressive effects,so as to enlighten the audience to make rational reflection in addition to having emotional consonance.Therefore,“poetic reconstruction of‘self-centered’”is critical in cross-cultural theatrical creation.In view of this condition,I will take the creation of Xi,an experimental drama,as an example,and discuss how directors reconstruct“self-centered”poetry in the cross-cultural theaters to form distinctive and unique expressions,so as to accomplish beneficial exploration of the co-existence of philosophy and beauty in the combination of classicism and contemporaneity and the process of taking in everything.

Almost Self-Centered Graphs

The center of a graph is the set of vertices with minimum eccentricity. Graphs in which all vertices are central are called self-centered graphs. In this paper almost self-centered （ASC） graphs are introduced as the graphs with exactly two non-central vertices. The block structure of these graphs is described and constructions for generating such graphs are proposed. Embeddings of arbitrary graphs into ASC graphs are studied. In particular it is shown that any graph can be embedded into an ASC graph of prescribed radius. Embeddings into ASC graphs of radius two are studied in more detail. ASC index of a graph G is introduced as the smallest number of vertices needed to add to G such that G is an induced subgraph of an ASC graph.

Resilient performance of self-centering hybrid rocking walls with curved interface under pseudo-static loading

Frame and rocking wall(FRW)structures have excellent resilient performance during earthquakes.However,the concrete at interfacial corners of rocking walls(RWs)is easily crushed due to local extreme compression during the rocking process.An innovative RW with a curved interface is proposed to prevent interfacial corners from producing local damage,enhancing its earthquake resilient performance(ERP).The precast wall panel with a curved interface is assembled into an integral self-centering hybrid rocking wall(SCRW)by two post-tensioned unbonded prestressed tendons.Moreover,two ordinary energy dissipation steel rebars and two shear reinforcements are arranged to increase the energy dissipation capacity and lateral resistance.Two SCRW specimens and one monolithic reinforced concrete(RC)shear wall(SW)were tested under pseudo-static loading to compare the ERPs of the proposed SCRW and the SW,focusing on studying the effect of the curved interface on the SCRW.The key resilient performance of rocking effects,failure modes,and hysteretic properties of the SCRW were explored.The results show that nonlinear deformations of the SCRW are concentrated along the interface between the SCRW and the foundation,avoiding damage within the SCRW.The restoring force provided by the prestressed tendons can effectively realize self-centering capacity with small residual deformation,and the resilient performance of the SCRW is better than that of monolithic SW.In addition,the curved interface of the SCRW makes the rocking center change and move inward,partially relieving the stress concentration and crush of concrete.The rocking range of the rocking center is about 41.4%of the width of the SCRW.

Test and simulation of full-scale self-centering beam-to-column connection

A new type of beam-to-column connection for steel moment flames, designated as a ＂self-centering connection,＂ is studied. In this connection, bolted top-and-seat angles, and post-tensioned （PT） high-strength steel strands running along the beam are used. The PT strands tie the beam flanges on the column flange to resist moment and provide self-centering force. After an earthquake, the connections have zero deformation, and can be restored to their original status by simply replacing the angles. Four full-scale connections were tested under cyclic loading. The strength, energy-dissipation capacity, hysteresis curve, as well as angles and PT strands behavior of the connections are investigated. A general FEM analysis program called ABAQUS 6.9 is adopted to model the four test specimens. The numerical and test results match very well. Both the test and analysis results suggest that： （1） the columns and beams remain elastic while the angles sustain plastic deformations for energy dissipation when the rotation of the beam related to the column equals 0.05 tad, （2） the energy dissipation capacity is enhanced when the thickness of the angle is increased, and （3） the number of PT strands has a significant influence on the behavior of the connections, whereas the distance between the strands is not as important to the performance of the connection.

Shake-table testing of a self-centering precast reinforced concrete frame with shear walls

The seismic performance of a self-centering precast reinforced concrete （RC） frame with shear walls was investigated in this paper. The lateral force resistance was provided by self-centering precast RC shear walls （SPCW）, which utilize a combination ofunbonded prestressed post-tensioned （PT） tendons and mild steel reinforcing bars for flexural resistance across base joints. The structures concentrated deformations at the bottom joints and the unbonded PT tendons provided the self-centering restoring force. A 1/3-scale model of a five-story self-centering RC frame with shear walls was designed and tested on a shake-table under a series of bi-directional earthquake excitations with increasing intensity. The acceleration response, roof displacement, inter-story drifts, residual drifts, shear force ratios, hysteresis curves, and local behaviour of the test specimen were analysed and evaluated. The results demonstrated that seismic performance of the test specimen was satisfactory in the plane of the shear wall; however, the structure sustained inter-story drift levels up to 2.45%. Negligible residual drifts were recorded after all applied earthquake excitations. Based on the shake-table test results, it is feasible to apply and popularize a self-centering precast RC frame with shear walls as a structural system in seismic regions.

Self-centering seismic retrofit scheme for reinforced concrete frame structures:SDOF system study

This paper presents the results of a parametric study of self-centering seismic retrofit schemes for reinforced concrete (RC) frame buildings. The self-centering retrofit system features flag-shaped hysteresis and minimal residual deformation. For comparison purpose,an alternate seismic retrofit scheme that uses a bilinear-hysteresis retrofit system such as buckling-restrained braces (BRB) is also considered in this paper. The parametric study was carried out in a single-degree-of-freedom (SDOF) system framework since a multi-story building structure may be idealized as an equivalent SDOF system and investigation of the performance of this equivalent SDOF system can provide insight into the seismic response of the multi-story building. A peak-oriented hysteresis model which can consider the strength and stiffness degradation is used to describe the hysteretic behavior of RC structures. The parametric study involves two key parameters -the strength ratio and elastic stiffness ratio between the seismic retrofit system and the original RC frame. An ensemble of 172 earthquake ground motion records scaled to the design basis earthquake in California with a probability of exceedance of 10% in 50 years was constructed for the simulation-based parametric study. The effectiveness of the two seismic retrofit schemes considered in this study is evaluated in terms of peak displacement ratio,peak acceleration ratio,energy dissipation demand ratio and residual displacement ratio between the SDOF systems with and without retrofit. It is found from this parametric study that RC structures retrofitted with the self-centering retrofit scheme (SCRS) can achieve a seismic performance level comparable to the bilinear-hysteresis retrofit scheme (BHRS) in terms of peak displacement and energy dissipation demand ratio while having negligible residual displacement after earthquake.

Seismic performance evaluation of a self-centering precast reinforced concrete frame structure

The seismic performance of a five-story,four-bay,self-centering precast reinforced concrete frame(SC-RCF),which was redesigned using the direct displacement-based design method,was analytically investigated.The analytical model of the overall structure was developed in OpenSees.The multi-spring contact element was adopted to simulate gap open-close behavior at connection interfaces.The limit states of external mild steel dampers and unbonded post-tensioning strands were considered.Static pushover analyses were performed up to the roof drift of 10%.The nonlinear dynamic responses under four groups of ground motions(with different fault distances and site conditions)at six hazard levels(from the service to the very rare earthquake(VRE))were compared.Incremental dynamic analyses were implemented to quantify the structural collapse risk.The results showed that the structural responses of SC-RCF were satisfactory under all levels of earthquakes.The collapse safety of the structure under earthquakes up to VRE1 was adequate,while the structure would collapse to a large extent under VRE2 and VRE3.

Numerical simulation of the seismic behavior of self-centering steel beam-column connections with bottom flange friction devices

A new type of steel moment resisting frame with bottom flange friction devices （BFFDs） has been developed to provide self-centering capacity and energy dissipation, and to reduce permanent deformations under earthquakes. This paper presents a numerical simulation of self-centering beam-column connections with BFFDs, in which the gap opening/closing at the beam-column interfaces is simulated by using pairs of zero-length elements with compression-only material properties, and the energy dissipation due to friction is simulated by using truss elements with specified hysteretic behavior. In particular, the effect of the friction bolt bearing against the slotted plate in the BFFDs was modeled, so that the increase in lateral force and the loss of friction force due to the bolt bearing could be taken into account. Parallel elastic-perfectly plastic gap （ElasticPPGap） materials in the Open System for Earthquake Engineering Simulation （OpenSees） were used with predefined gaps to specify the sequence that each bolt went into the bearing and the corresponding increase in bending stiffness. The MinMax material in OpenSees is used to specify the minimum and maximum values of strains of the ElasticPPGap materials. To consider the loss of friction force due to bok bearing, a number of parallel hysteretic materials were used, and the failure of these materials in sequence simulated the gradual loss of friction force. Analysis results obtained by using the proposed numerical model are discussed and compared with the test results under cyclic loadings and the seismic loading, respectively.

OPTIMIZING DESIGN OF MECHANICAL SELF-CENTERING DEVICE FOR SUSPENSION HEIGHT

Firstly, in view of the respective defects of existing self-centering devices for vehicle suspension height, the design scheme of the proposed mechanical self-centering device for suspension height is described. Taking the rear suspension of a certain light bus as a research example, the structures and parameters of the novel device are designed and ascertained. Then, the road excitation models, the performance evaluation indexes and the half-vehicle model are built, the simulation outputs of time and frequency domain are obtained with the road excitations of random and pulse by using MATLAB/Simulink software. So the main characteristics of the self-centering suspension are presented preliminarily. Finally, a multi-objective parameter design optimization model for the self-centering device is built by weighted sum approach, and optimal solution is obtained by adopting complex approach. The relevant choosing-type parameters for self-centering device components are deduced by using discrete variable optimal method, and the optimal results are verified and analyzed. So the performance potentials of the self-centering device are exerted fully in condition of ensuring overall suspension performances.

Seismic performance of a reinforced concrete building retrofitted with self-centering shape memory alloy braces

Self-centering earthquake-resistant structures have received increased attention due to their ability to reduce post-earthquake residual deformations and,thus,repair time and cost.This stimulated the development of recentering shape memory alloy(SMA)dampers that use superelastic nitinol wires to dissipate energy and self-center the structure.However,there are still a few case studies applications on full-scale RC buildings in the literature.Moreover,general guidelines or even simplified approaches for the practical design of SMA damped braces are still lacking.This paper focuses on evaluating the effect of using self-centering shape memory alloy dampers for buckling-restrained braces applied for the seismic retrofit of a complex RC building structure.A design method originally proposed for elastoplastic dampers was implemented to size the SMA dampers to be placed on selected spans and stories of a building.The effectiveness of the design procedure was demonstrated by nonlinear time-history analyses under different sets of earthquake strong ground motions.The analysis results show that the recentering shape memory alloy bracing system is effective in limiting the maximum transient inter-story drifts and reducing the residual inter-story drifts after strong seismic events,due to its excellent recentering behavior together with its not negligible energy dissipation capacity.

“好德如好色”:孔子对当代美德伦理学的贡献

孔子的"好德如好色"表明,儒家的最高境界不是行善,而是乐于行善。这样一种观点对于当代美德伦理学具有多重的贡献。第一,它对西方哲学自柏拉图开始就困扰着大家的"为什么要有道德"的问题作出了一个恰当的回答:通过有道德才能成为一个健康而没有缺陷的人;第二,它对认为具有美德的人根本上是自我中心主义者的观点做了有力回应:虽然具有美德的人是为了自己成为一个健康而没有缺陷的人,一个人之所以健康而没有缺陷恰恰是因为他关心他人的利益;第三,它对所谓美德的悖论(美德之所以值得赞扬是因为它要求我们做的是困难的事情,但具有美德的人做这些事情时却轻而易举)提供了一个很好的说明:要成为一个具有美德的人,即成为一个能够轻而易举地做美德的事情的人,需要做长期而艰苦的自我修养功夫,而一个人之所以在做这样的美德的事情时非常困难,恰恰是因为他没有下功夫成为一个具有美德的人,因此美德和具有美德的人还是最值得赞扬的。

由“自我中心意识”到“自我意识”的嬗变——兼论当代大学生社会适应能力的培养

课题组的问卷调查表明:大学生"自我中心意识"倾向明显、"自我意识"相对薄弱、"大学生社会适应能力"孱弱。加强当代大学生"社会适应能力"的培养有助于帮助大学生实现由"自我中心意识"到"自我意识"的嬗变。

也谈当代大学生“自我中心”问题的成因与对策

“自我中心”是当代大学生思想品德中最突出的问题,这是德育工作的重中之重。当代大学生“自我中心”心理的形成是家庭、社会和学校诸因素影响的综合结果。需要政府、社会、家庭和学校的共同努力,营造良好的社会环境和科学的价值导向,才能培养大学生健康的心理和人格。

论元朝高丽文人的本位意识——以李齐贤为例

元朝与高丽国的藩属关系决定了高丽文人在接受中国文化、思想与文学传统的同时,也有较强的高丽本位意识。本文以高丽最重盛名的文人李齐贤为例,通过对其诗文著述和政治经历的考察,认为高丽文人普遍在政治上以特殊的陪臣心态坚守民族本位,思想上既接受儒家传统立场又强化家邦意识,文学创作上则在立足中国文学传统的同时,流露出明显的本土观念,从中可以窥见高丽文人面对中原王朝的特殊心态。

人本主义心理学与人本主义语言教学

人本主义心理学的产生有其独特的历史背景和基本思想，并且由此产生了具有该思想的教学理念。人本主义强调人的价值和人格，认为理想的教育是“以学生为中心”的教育，教育的目的是培养智、情统一的全面发展的人。人本主义思想在语言教育的应用表现为实行以学生为中心的语言教学方式，突出学生的主动性和积极性，教师的作用在于提供一种和谐的学习环境。学生在这种宽松的环境中，既可以学习语言，又可以发展自己的人格，实现自我，成为社会需要的人才。

从认知发展局限到健康人格缺失——大学生自我中心的理论嬗变

在处于形式运算思维阶段的部分大学生身上,仍然可以看到明显自我中心表现.认知发展阶段理论、咨询心理学、教育学、社会文化学、发展心理学和社会心理学对此作出了各自的解释,都有其合理性,但也都存在研究视角、理论和方法的局限.因此,必须对这些理论进行整合,才能全面考察影响大学生自我中心解除困难的原因,提出行之有效的解决策略.

“以学习者为中心”理论指导的外语实训室建设策略

"以学习者为中心"学习理论指导下建设的外语自主学习实训室,是基于一种全新的自主学习理念,集各种信息和媒体技术于一体,适合开展"以学习者为中心"的多门外语课程自主学习活动。实训室建设策略涉及学习环境的设计原则和可实现的特色功能等要素。

试论大学新生的人际交往

大学新生人际交往具有一定的特殊性。由于缺乏全面客观的自我认知、自我中心、消极价值观的影响、人际交往经验技巧不足等原因,使新生们在实际生活中人际交往困难,进而影响了他们的心理健康水平。高校及心理健康教育中心应针对新生进行及时有效的人际交往指导,以帮助他们更好更快的适应大学生活。

中学生的自我中心倾向及其解决策略——中学生心理健康教育的重点

自我中心倾向对学生的成长发展影响极大。中学生自我中心的形成与其所受教育及社会生活有密切联系。解除中学生的自我中心倾向是中学生心理健康教育的重点。为了解除中学生的自我中心倾向,需要提高中学生的自我评价能力,培养学生社会视角的转换技能,鼓励学生积极参与社会实践活动,在活动中培养良好品德。

从文化角度浅析中西语言的差异

语言与文化具有镜象关系,二者关系密切,相互影响。只有从文化差异出发去研究语言差异,才能有效地把握语言与文化的内在联系。本文着重从文化角度分析中西语言的差异。西方文化突出地具有一种“外倾性”,因此印欧语发展了精密性和逻辑性;而中国文化具有“主体的自我中心性”,因此汉语发展了一种能指优势。