杂糅:当代首饰多元边界的承袭——《论首饰:国际当代艺术首饰简编》述评

英文著作《论首饰:国际当代艺术首饰简编》是剖析当代首饰艺术化历程多元边界的先驱之作。作者伊丽莎白·邓·伯斯特(Liesbeth den Besten)以当代首饰艺术化历程为主线,结合西方不同首饰艺术家的作品实例展开当代首饰跨越艺术、手工艺、设计和时尚四个领域的杂糅状态探析,首次呈现出国际当代首饰丰富多元的整体面貌。

新华联多元化经营战略分析

多元化战略的基本理论认为:专业化和多元化都是企业发展战略,并没有优劣之分。因此,中国企业在现有的市场经济下也可以实现多元化经营。文章以新华联集团为案例来进行具体分析,总结出新华联的成功在于其明确的核心竞争力,有序投资、稳定进取,集中产业、有限多元。但是,新华联在将来的发展中也应该注意多元的相关性及边界问题,以免多元步伐和成长不一致而防碍企业发展。

企业边界扩张的维度及有关影响因素分析

本文在对交易费用理论、规模经济理论及范围经济理论等有关理论进行回顾和总结的基础上,从生产链、产量以及产品种类等三个维度对企业的纵向边界、横向边界、多元化边界及其各自的影响因素进行了比较深入的分析和探讨,最后得出一定结论及其对发展我国企业的启示。

A Multi-Domain Boundary Element Method to Analyze the Reflection and Transmission of Oblique Waves From Double Porous Thin Walls

In the present paper, we examine the performance of an efficient type of wave-absorbing porous marine structure under the attack of regular oblique waves by using a Multi-Domain Boundary Element Method(MDBEM). The structure consists of two perforated vertical thin barriers creating what can be called a wave absorbing chamber system. The barriers are surface piercing, thereby eliminating wave overtopping. The problem of the interaction of obliquely incident linear waves upon a pair of perforated barriers is first formulated in the context of linear diffraction theory. The resulting boundary integral equation, which is matched with far-field solutions presented in terms of analytical series with unknown coefficients, as well as the appropriate boundary conditions at the free surface, seabed, and barriers, is then solved numerically using MDBEM. Dissipation of the wave energy due to the presence of the perforated barriers is represented by a simple yet effective relation in terms of the porosity parameter appropriate for thin perforated walls. The results are presented in terms of reflection and transmission coefficients. The effects of the incident wave angles, relative water depths, porosities, depths of the walls, and other major parameters of interest are explored.

Between Borders： Moroccan Migrations

In the works of two young women from Morocco, themes of identity, belonging, class, race, gender, changing customs and language, and literary references abound. Since both writers are relative newcomers to their literary scenes, the only bibliography available consists of brief reviews. The author hopes to give their work a wider audience so that divulgation will lead to more criticism and the attention they deserve. The literary references in these two writers are very indicative of their adopted cultures： Najat El Hachmi＇s favorites are mostly Catalan writers, while Laila Lalami speaks of American authors who lived in Morocco, and both mention traditional Arabic literature. The work of both these writers is greatly enriched, if sometimes painfully, by their absorption into multiple cultures and identities.

The Dialectic of Borders and Multiculturalism in Naomi Nye＇s Habibi

This paper investigates how the Arab-American writer Naomi Nye addresses the dialectic between borders and multiculturalism in her award-winning young adult novel Habibi （1997）. Critiquing the essentialist view that presumes fixed boundaries for a culture, Nye promotes the alternative view that assumes individuals＇ power of defining and redefining their cultural identities in a multicultural society. The author argues that Nye＇s position is that borders/boundaries and geographical demarcations are flimsy, arbitrary and create divisions, animosities and hatred between people and nations whereas multiculturalism engenders feelings of reconciliation, friendship, and understanding. Though borders and boundaries can be divisive, cultural variety and hybridity can be inclusive. To counteract the argument of borders/boundaries, Nye posits the argument of multiculturalism. In this paper, the author intends to examine the assumptions of the physical and the cultural borders rhetoric in comparison with the multicultural approach narrative. It is the dialectic of these two opposing forces that shapes the events and the final outcome of the action and events of this novel

The Communion Without Boundaries and Sakae Osugi＇s Anarchism

The purpose of this paper is to investigate the political ideals of Sakae Osugi. Osugi argued that it was possible to establish a ＂society of mutual aid＂ based on the principle of ＂expansion of life＂. In his view, the hierarchy meant fixing the boundary and every boundary was an expression and exercise of power. That explains why anarchism is a perpetual movement which attempts to transcend every boundary forming the hierarchy. Osugi aimed at a free and diversified federal society where life is expanded. Osugi＇s influence stemmed from his articulation of the basic concerns of his generation. That generation confronted difficulties of a different order from those faced by the Meiji leadership. Osugi was attracted to the problem presented by the emerging masses： How could they be incorporated into society？ His reply to this question was ＂mutual aid＂. This paper focuses on the relation between both notions of freedom and society and analyzes it throwing a light on the principle of ＂expansion of life＂ in Osugi＇s anarchism. Similarly to his contemporaries, it might be helpful to enquire into that principle, in a way that is beneficial to the relation between freedom and society.

Hydrodynamic performance of combined cylinders structure with dual arc-shaped porous outer walls

This study examines the hydrodynamic performance of short-crested wave interaction with a new porous cylindrical structure by using the scaled boundary finite element method （SBFEM）, which is a semi-analytical technique combining the advantages of the finite element method and the boundary element method and with its own special features as well. The cylindrical structure consists of dual arc-shaped porous outer cylinders circumscribing an impermeable inner cylinder. A central feature of the newly extended method is that two virtual outer cylinders extending the arc-shaped porous outer cylinders with the same centre are introduced and variable porous-effect parameters are also introduced for the two virtual cylinders, so that the final SBFEM quation still can be handled in a closed-form analytical manner in the radial direction and by a finite element approximation in the circumferential direction. The entire computational domain is divided into two bounded and one unbounded domains, and a variational principle formulation is used to derive the SBFEM equation in each sub-domain. The velocity potential in bounded and unbounded domains is formulated using sets of Bessel and Hankel functions respectively, and the unknown coefficients are determined from the matching conditions. The results of numerical verification show that the approach discretises only the outermost virtual cylinder with surface finite-elements and fewer elements are required to obtain very accurate results.Influences of the incident wave parameters and structural configurations on the hydrodynamics are examined.

Fast multipole accelerated boundary element method for the Helmholtz equation in acoustic scattering problems

We apply the fast multipole method (FMM) accelerated boundary element method (BEM) for the three-dimensional (3D) Helmholtz equation, and as a result, large-scale acoustic scattering problems involving 400000 elements are solved efficiently. This is an extension of the fast multipole BEM for two-dimensional (2D) acoustic problems developed by authors recently. Some new improvements are obtained. In this new technique, the improved Burton-Miller formulation is employed to over-come non-uniqueness difficulties in the conventional BEM for exterior acoustic problems. The computational efficiency is further improved by adopting the FMM and the block diagonal preconditioner used in the generalized minimum residual method (GMRES) iterative solver to solve the system matrix equation. Numerical results clearly demonstrate the complete reliability and efficiency of the proposed algorithm. It is potentially useful for solving large-scale engineering acoustic scattering problems.