Compactly Supported Tensor Product Complex Tight Framelets with Directionality

Although tensor product real-valued wavelets have been successfully applied to many high-dimensional problems, they can only capture well edge singularities along the coordinate axis directions. As an alternative and improvement of tensor product real-valued wavelets and dual tree complex wavelet transform, recently tensor product complex tight framelets with increasing directionality have been introduced in [8] and applied to image denoising in [13]. Despite several desirable properties, the directional tensor product complex tight framelets constructed in [8,13] are bandlimited and do not have compact support in the space/time domain. Since compactly supported wavelets and framelets are of great interest and importance in both theory and application, it remains as an unsolved problem whether there exist compactly supported tensor product complex tight framelets with directionality. In this paper, we shall satisfactorily answer this question by proving a theoretical result on directionality of tight framelets and by introducing an algorithm to construct compactly supported complex tight framelets with directionality. Our examples show that compactly supported complex tight framelets with directionality can be easily derived from any given eligible low-pass filters and refinable functions. Several examples of compactly supported tensor product complex tight framelets with directionality have been presented

Localization of U(1)U(1) gauge vector field on flat branes with five-dimension (asymptotic) AdS5_{5} spacetime

In order to localize $U(1)$ gauge vector field on Randall-Sundrum-like braneworld model with infinite extra dimension, we propose a new kind of non-minimal coupling between the $U(1)$ gauge field and the gravity. We propose three kinds of coupling methods and they all support the localization of zero mode. In addition, one of them can support the localization of massive modes. Moreover, the massive tachyonic modes can be excluded. And our method can be used not only in the thin braneword models but also in the thick ones.Comment: Added acknowledgments to the refree. Appeared on JHE

How to Establish Labor Protection Standards for Kenyan Local Workers in Chinese Multinational Corporations

China has increased investment into Kenya since it proposed the Belt and Road Initiative. Many Chinese State-Owned-Enterprises (“SOEs”) and private companies have established their presence in Kenya; most of them engage in labor-intensive industries like infrastructure building or manufacturing. Labor-intensive work requires companies to hire many local workers, which gives rise to labor conflicts between Chinese employers and Kenyan employees. Major conflicts between the two parties stem from several factors including informal hiring, wrongful termination, and tense relations with Kenyan labor unions. This article suggests that Chinese companies in Kenya should comply with Kenyan labor law to resolve labor issues resulting in conflicts. Furthermore, this article suggests that Chinese companies in Kenya should internalize the management strategy of compliance with the law and make further efforts in protecting the rights of Kenyan workers through Corporate Social Responsibility (“CSR”). CSR is beneficial to Chinese companies in building positive image, forming social dialogue, improving production efficiency, and achieving sustainable development

1-[(4-Bromo­phen­yl)(morpholin-4-yl)meth­yl]naphthalen-2-ol

The title compound, C21H20BrNO2, was obtained from a condensation reaction of 4-bromo­benzaldehyde, 2-naphthol and morpholine. The mol­ecular conformation is stabilized by an intra­molecular O—H⋯N hydrogen bond, closing a six-membered ring. The dihedral angle between the naphthalene ring system and the benzene ring is 76.72 (8)°. In addition to the intra­molecular hydrogen bond, the O—H groups of centrosymmetrically related mol­ecules form short inter­molecular H⋯O contacts of 2.59 Å. These mol­ecules are also linked by pairs of C—H⋯O inter­actions, generating an R 2 2(14) motif

Talking about International Student Mobility (ISM) through the Voices of Individual British Students in China and Chinese Students in the UK

In the context of globalization and internationalization of higher education, my research explores International Student Mobility (ISM) through the lens of the everyday life and study experiences of British students in China and Chinese students in the UK. Central to the discussion are the results of thematic analysis and associated semi-structured interviews conducted with 10 British students and 10 Chinese students. The results suggest that, first of all, education mobility should not be confined to a framework that considers it as a separate life episode. Partaking in international education is a life trajectory embedded in students’ past experiences and future expectations. Different students therefore make sense of their education mobility experiences based on their different features. In addition, even though individual students’ mobility experiences differ from each other, there also exists some shared experiences for the 10 British participants and 10 Chinese participants respectively. These shared experiences reveal how students use their affirmative agendas actively and creatively to expand life spaces and search for more possibilities in host countries. Furthermore, based on the identification of ISM associated policy and practice contexts in the UK and China, my research makes better sense of individual students’ experiences in these contexts by presenting the interminglements between individual experiences and ISM-associated policy and practice contexts. Apart from these, my research also explores new possibilities of researching ISM by combining some traditional qualitative research methods with Deleuze and Guattari’s philosophy, and Koro-Ljungberg’s new thinking of data

Online-offline activities and game-playing behaviors of avatars in a massive multiplayer online role-playing game

Massive multiplayer online role-playing games (MMORPGs) are very popular in China, which provides a potential platform for scientific research. We study the online-offline activities of avatars in an MMORPG to understand their game-playing behavior. The statistical analysis unveils that the active avatars can be classified into three types. The avatars of the first type are owned by game cheaters who go online and offline in preset time intervals with the online duration distributions dominated by pulses. The second type of avatars is characterized by a Weibull distribution in the online durations, which is confirmed by statistical tests. The distributions of online durations of the remaining individual avatars differ from the above two types and cannot be described by a simple form. These findings have potential applications in the game industry.Comment: 6 EPL pages including 10 eps figure