The Geometry on Smooth Toroidal Compactifications of Siegel varieties

This is a part of our joint program. The purpose of this paper is to study smooth toroidal compactifications of Siegel varieties and their applications, we also try to understand the K\"ahler-Einstein metrics on Siegel varieties through the compactifications. Let $A_{g,\Gamma}:=H_g/\Gamma$ be a Siegel variety, where $H_g$ is the genus-$g$ Siegel space and $\Gamma$ is an arithmetic subgroup in $Aut(H_g)$. There are four aspects of this paper : 1.There is a correspondence between the category of degenerations of Abelian varieties and the category of limits of weight one Hodge structures. We show that any cusp of Siegel space $\frak{H}_g$ can be identified with the set of certain weight one polarized mixed Hodge structures. 2.In general, the boundary of a smooth toroidal compactification $\bar{A}_{g,\Gamma}$ of $A_{g,\Gamma}$ has self-intersections.For most geometric applications, we would like to have a nice toroidal compactification such that the added infinity boundary $D_\infty =\bar{A}_{g,\Gamma}-A_{g,\Gamma}$ is a normal crossing divisor, We actually obtain a sufficient and necessary combinatorial condition for toroidal compactifications. 3. A toroidal compactification $\bar{A}_{g,\Gamma}$ of is totally determined by a combinatorial condition : an admissible family of polyhedral decompositions of certain positive cones. We show that the unique K\"ahler-Einstein metric on $A_{g,\Gamma}$ endows some restraint combinatorial conditions for all toroidal smooth compactifications of $A_{g,\Gamma}.$ 4.We study the asymptotic behaviour of logarithmical canonical line bundles on smooth toroidal compactifications of $A_{g,\Gamma}$ and get an integral formula for intersection numbers.Comment: To appear in American Journal of Mathematics 2014,81 page

Simulation of the Oxygen Reduction Reaction (ORR) Inside the Cathode Catalyst Layer (CCL) of Proton Exchange Membrane Fuel Cells Using the Kinetic Monte Carlo Method

In this paper, a numerical model of the kinetic Monte Carlo (KMC) method has been developed to study the oxygen reduction reaction (ORR) that occurs inside the cathode catalyst layer (CCL). Firstly, a 3-D model of the CCL that consists of Pt and carbon spheres is built using the sphere packing method; secondly, an efficient procedure of the proton-oxygen reaction process is developed and simulated. In the proton-oxygen reaction process, all of the continuous movements of protons and oxygen are considered. The maximum reaction distance is determined to be 8 Å. The input pressures of protons and oxygen are represented by the number of spheres of the species. The value of the current density is calculated based on the amount of reaction during the interval time. Indications are that the results of the present model match reasonably well with the published results. A new way to apply the KMC method in the proton exchange membrane fuel cell (PEMFC) research field is developed in this paper

Ready to accommodate emerging senior tourism and hospitality market? Younger generation’s perceptions about older adults and knowledge of aging

[[abstract]]The study investigates university students’ perceptions about senior citizen and knowledge of aging via a mixed method approach. The qualitative evidence in this study suggests that younger generation in Taiwan tends to hold negative perceptions about the older adults and that, men are more likely to show negative perceptions than women. The quantitative evidence in this study indicates that younger generation in Taiwan has low level of aging knowledge. Negative perceptions about the senior citizen and low level of aging knowledge among younger generation present a challenge to accommodate the emerging senior tourist market in Taiwan.[[sponsorship]]National Kaohsiung University of Hospitality and Tourism[[conferencetype]]國際[[conferencedate]]20140514~20140516[[booktype]]電子版[[iscallforpapers]]Y[[conferencelocation]]Kaohsiung, Taiwa

COVID-19 and the Corpse of Neoliberal Globalization

The COVID-19 pandemic is as much a process of globalization as it is its outcome. In the wake of the death, socio-economic devastation, and radical uncertainties it has unleashed, this paper re-examines globalization anew. This paper’s focus is on the role that neoliberalism has played in precipitating the COVID-19 disaster, especially in the wealthiest nations of the West. Re-visiting history, the paper takes issue with the rhetoric of globalization that had been sold as a project ushering in an interconnected global village exalting culture and community. Against such exuberance, the paper recalls that globalization was a post-Cold War project celebrating liberal-capitalism’s ‘triumph’ over state-socialism. It reveals globalization to be foremost about economic accumulation, not community edification. Moreover, in the realm of ideology and policymaking, the past four decades have seen liberalism devolving into neoliberalism, and many national states becoming financialized corporate states. Especially in the West, the liberal state has been captured and financialized. Austerity—not redistributive growth—has reigned, engendering historically unprecedented social polarization which COVID-19 has exposed and exacerbated. Globalization, I argue, has served as rhetorical cover for the social destructiveness of ‘neoliberalism’. The approaches and outcomes of pandemic management in much of the West are a further indictment of neoliberalism. Whereas ‘herd immunity’ had been the early de facto pandemic strategy of many neoliberal Western governments, most of East Asia a state-led commitment to ‘zero transmission’ and minimum casualties, leading to vastly different health outcomes

In search of the Good Life in Contemporary China : Stories from ShenZhen

What makes a good life? And, specifically, what makes a good life in China today? The question is relevant because in the course of the past thirty-plus years, China sustained a historically unprecedented economic growth rate that averaged roughly 10% annually, lifting over 800 million of its population out of poverty. In line with these developments, urbanization proceeded apace throughout the country, precipitated by large-scale rural-urban migration. With an estimated 440 million rural-urban migrants in the 30 years since 1979, China’s urban population exceeded its rural population for the first time in 2011 and has only continued to increase since. Such radical economic and demographic transformation of what has historically been an agrarian civilisation has led to talk of a civilisation-switch that has widely been celebrated as a monumental success. But have these coeval meta-level processes of modernization, implied by economic progress, development, and urbanisation, yielded the good life? While asking about the good life has been the perennial quest of philosophy, this inquiry is based on a grounded empirical investigation. Essentially, my project has deployed the methods of anthropology to furnish an answer to what is a philosophical question. My study was based on ethnographic research conducted in Shenzhen, South China, over two extended stints totaling some twenty-four months. The city, which is in the Pearl River Delta region (zhujiangsanjiao 珠江三角), was the field-site of choice for my ethnography because it was the country’s first Special Economic Zone (SEZ) and also its most successful. My interlocutors were all rural-migrants who had left home for Shenzhen in search of the supposedly good life. Did they find it? My research sought to find out, in the process, shedding light on the nature of modernity and our prospects of attaining the good life within it

Nanoimprinted strain-controlled elastomeric gratings for optical wavelength tuning

We demonstrate strain-controlled gratings made of an organic elastomer, polydimethylsiloxane (PDMS), which can achieve optical wavelength tuning by varying their spatial periods. The whole device structure presented in this work incorporates a nanoimprinted PDMS grating integrated with electrostatic microelectromechanical systems actuators on a silicon chip. The fabrication of the device combines polymer soft lithography, nanoimprint lithography, and silicon micromachining across multiscale dimensions ranging from a few hundred nanometers to a few millimeters. The fine tuning capability with fast dynamic response of our PDMS/silicon hybrid optical grating device makes it attractive for use in various micro-optical instruments.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87849/2/161113_1.pd

Die Weltgesellschaft in der Perspektive der Zivilisationstheorie

Die vorliegende Arbeit beschäftigt sich mit einem heute sehr verbreiteten Thema, der Globalisierung. Die Globalisierungsforschung sowie die neuere Literatur zur Weltgesellschaft werden nämlich systematisch im Lichte der Zivilisationstheorie von Norbert Elias gedeutet, um einen Bezugsrahmen zu formulieren, in dem bisherige Ergebnisse der Globalisierungsdebatte und Weltgesellschaftsforschung akkumuliert werden. Diese Arbeit ist dabei keine typische Globalisierungsuntersuchung mit entsprechender Analyse und Forderungen. Sie ist auch keine typische Anwendung der Zivilisationstheorie. Es wird vielmehr versucht, die Zivilisationstheorie theoretisch zu vertiefen und zu erweitern. Die vorliegende Arbeit unterteilt sich in vier Kapitel: Das erste Kapitel liefert einen Überblick der Globalisierungsdebatte und zum Begriff der Weltgesellschaft. Daran schließt sich im zweiten Kapitel die Ausarbeitung der Kernthese mit der Ausweitung des „Prozessmodells auf mehreren Ebenen“ und dem Konzept der Machtbalance auf die Analyse der Weltgesellschaft an. Zur Erweiterung der Zivilisationstheorie werden hier die Konzepte der „Modellierung“ und „Überlappung“ eingeführt. Im dritten und vierten Kapitel werden die Themen Entwicklung und Gesellschaft der Individuen anhand der Theoriediskussion und der Rekonstruktion des Bezugsrahmens diskutiert. Sie sind für die Untersuchung der Globalisierung bzw. Weltgesellschaft und zugleich für die Weiterentwicklung der Zivilisationstheorie zentrale Themen. Im abschließenden Fazit schließlich wird ein Ausblick auf die mögliche weitere Anwendung des neuen Instrumentariums gewagt. Der hier vorgestellte analytische Bezugsrahmen vermag solchen empirisch orientierten Forschungsfragen aber eine Orientierungshilfe darzustellen. Der Bezugsrahmen dient also als erster Schritt der Weiterentwicklung der Globalisierung/Weltgesellschaftsforschung und der Zivilisationstheorie in Richtung einer globalen Soziologie

How can we talk about China and against Sinophobia without feeling guilty, apologetic or defensive?

Drawing on our experience as early career researchers who identify as Chinese, we discuss how such an identity has inevitably and unjustifiably come to entrap us in the politics of the great power rivalries of our time. We call for attention to the discrimination against Chinese scholars in the process of academic knowledge production, in particular, in peer review processes.Publisher PDFNon peer reviewe