30,920 research outputs found

    Pressure behavior of Te isoelectronic centers in ZnS : Te

    No full text
    ZnS:Te epilayers with Te concentration from 0.5% to 3.1% were studied by photoluminescence under hydrostatic pressure at 15 K. Two emission bands related to the isolated Te-1 and Te-2 pair isoelectronic centers were observed in the samples with Te concentrations of 0.5% and 0.65%. For the samples with Te concentrations of 1.4% and 3.1%, only the Te-2-related peak was observed. The pressure coefficients of all the Te-1-related bands were found to be unexpectedly much larger than that of the ZnS band gap. The pressure coefficients for all the Te-2-related bands are, however, rather smaller than that of ZnS band gap as usually observed. Analysis based on a Koster-Slater model indicates that an increase of the valence bandwidth with pressure is the main reason for the faster pressure shift of the Te-1 centers, and the huge difference in the pressure behavior of the Te-1 and Te-2 centers is due mainly to the difference in the pressure-induced enhancement of the impurity potential on the Te-1 and Te-2 centers. (C) 2002 American Institute of Physics

    The concept of peace in the Tao Te Ching

    No full text
    This thesis represents a first attempt to analyze Lao Tzu's main method of resolving the social and political problems in Ch'un Ch'iu and Warring States Periods. Lao Tzu, the founder of Taoism, suggested many solutions that could bring an end to the conflicts and to the ending of the disunity of China. Examples of these include the reform or abolishment of some ancient Chinese institutions as well as new principles for the enhancement and preservation of life. All these ideas were to become crystallised in Tao Te Ch'ing, which became an important religious text. In particular, the aspect of Lao Tzu's methods for solving the social and political problems of China in the Warring States Period needs more attention. In each chapter of the Tao Te Ch'ing there was a main emphasis on peace as the main method of developing social cohesion and as a cure to all fundamental human problems. Therefore, Lao Tzu's ideas about peace and his methods of solving the problems of the Warring States period are significant and from the main focus of the thesis

    Photoluminescence of Te isoelectronic centers in ZnS : Te under hydrostatic pressure

    No full text
    The photoluminescence of four epitaxial ZnS: Te samples with Te concentration from 0.5% to 3.1% was investigated at different temperature and ambient pressure. Two well-known emission bands related to the isolated Te-1 and Te-2 pair isoelectronic centers were observed for the samples with Te concentrations of 0.5% and 0.65%. For the samples with Te concentrations of 1.4% and 3.1%, only was the Te-2-related peak observed. The pressure behaviors of these emission bands, were studied at 15 K. The Te-1 -related band has faster pressure shift to higher energy than ZnS band gap. On the other hand, the pressure coefficient of Te-2 -related bands is smaller than that of the ZnS band gap. According to a Koster-Slater model, we found that the increase of the density bandwidth of the valence band with pressure is the main reason for the faster shift of the Te-1 centers, while the relatively large difference in the pressure behavior of the Te-1 and Te-2 centers is mainly due to the difference in the pressure-induced enhancement of the impurity potential on Te-1 and Te-2 centers

    HAN start Compacte Opleiding Kostendeskundige Bouw: Vertrek tweejarige opleiding opgevangen

    No full text
    Na het vertrek van de tweejarige opleiding tot bouwkostendeskundige naar Vitruvius Opleidingen besloot de HAN een nieuwe opleiding aan te bieden. Voor deze opleiding is volgens HAN-manager Eric Zinger zeker plaats. "De markt vraagt om compactere en goedkopere scholing op post-hbo-niveau, waarin veel aandacht is voor actuele opgaven zoals herbestemming."OTBArchitecture and The Built Environmen

    Dataset to support the article "High-resolution 𝜙-OFDR using phase unwrap and nonlinearity suppression"

    No full text
    This dataset is used for realizing high resolution of phase-sensitive Optical Frequency Domain Reflectometer. It is associated with the research paper: Guo Z, Yan J, Han G, Yu Y, Greenwood D and Marco J (2023) &quot;High-Resolution &phi;-OFDR Using Phase Unwrap and Nonlinearity Suppression&quot;. Journal of Lightwave Technology, 41 (9), 2885-2891. (https://doi.org/10.1109/JLT.2023.3236775). The data is presented as an excel file: High_resolution_OFDR_using_phase_unwrap_and_nonlinearity_suppression.xlsx This work was funded by High Value Manufacturing Catapult and the Engineer and Physical Sciences Research Council - EPSRC EP/V000624/1. The author Gaoce Han would like to acknowledge the China Scholarship Council for sponsoring.</span

    Han Suyin (Chinese author) speaking at Dallas Brookes Hall.

    No full text
    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/276390Han Suyin (Chinese author) speaking at Dallas Brookes Hall.200056 Item: [1999.0081.00439] "Han Suyin (Chinese author) speaking at Dallas Brookes Hall.

    The Study on House Tax Equity in Taipei

    No full text
    本研究實證分析台北市2007至2009年不動產交易資料,結果顯示臺北市房屋稅之估價比率大多集中在10%至16%之間,估價比率之中位數為14.79%,從市郊往開發越早的市中心,水平不公平就越嚴重;垂直不公平部分,低價位房屋具有累退性的問題,中高價位房屋則呈現累進性的現象,此外,低價位房屋的估價比率差異程度較大。故房屋稅在進行房屋現值評定時,對於低價位房屋應調降其評估價值,並設法減輕低價位房屋的估價比率差異程度;中高價位房屋現值的評定雖皆具累進性,但許多高價位房屋的估價比率是低於中低價位房屋之估價比率,豪宅稅的課徵似能提高高價位房屋之估價比率,並使房屋稅更加公平,但其效果仍有待觀察。This study investigates house tax equity in Taipei. By analyzing the real estate transaction data from 2007 to 2009, the results show that the median assessment ratio is 14.79% and most of the assessment ratios are between 10% and 16%. The horizontal equity does not hold in Taipei and it gets worse in the downtown. The results also show that the house tax for low-cost houses is regressive. In addition, the variation in the assessment ratios of low-cost houses is the largest. Therefore, the local government should reduce the assessment value and its variation for low-cost houses. Because there are many high-cost houses with lower assessment ratios, the mansion tax may make the house tax more equity by increasing the assessment ratios of high-cost houses. But its effect needs more studies

    Studies in the Structural Theory of Forcing

    No full text
    This thesis can be viewed as a "meta-theoretical" study of certain issues of forcing and some of the applications arising from this structural study. Chapter 1 presents our notation, terminology and some facts needed in later Chapters. Chapter 2 analyzes the notion of genericity versus that of pre-genericity and shows why the latter does not suffice to capture the intended goal. Chapter 3 gives a simplified definition of the forcing relation and shows how the fundamental theorems of forcing effortlessly follow from that definition. Chapter 4 re-addresses the issue of the Boolean completion of a preorder from the viewpoint of "identifying the discernibles". The prototype case of ≤* is systematically studied, thereby preparing for its applications in later Chapters. Chapter 5 presents a conceptual analysis of iterated forcing, and thus provides a precise technical argument why a forcing iteration exactly corresponds to an ascending sequence of complete Boolean algebras. Chapter 6 characterizes the situation of MP ⊆ MQ, primarily by the "witness mappings" and gives applications of this characterization. Characterizations of P ~ Q, P ≤ Q are also discussed. Chapter 7 gives more applications of the techniques and results in previous Chapters in giving forcing proofs of forcing-free facts like Kripke's embedding theorem and Tarski's generalized Bernstein-Schroder theorem

    A Study on the mathematics textbooks in the era of the Great Han Empire

    No full text
    이 글은 갑오경장(1894)과 경술 국치(1910) 사이에 간행된 산학(수학) 교재류의 목록을 확인하고, 각 텍스트의 출판과 관련된 사항, 소장처, 이본 등의 서지적 정보와 함께 이 시기 산학 교재류의 국어사 자료로서의 의의를 언어 사용 상의 측면에 초점을 두어 정리하는 것을 목적으로 한다. 이는 현대 한국어 태동기의 분과 학문의 도입 양상에 대한 연구의 일환인 한편, 학술 용어의 번역과 정착을 중심으로 이 시기의 한국어의 어휘 확장 양상을 확인하는 데에 필요한 기초 자료를 정리하는 작업의 한 부분이다. 본 연구에 앞선 산학(수학) 교재류에 대한 연구로는 산학 교재류의 서지 사항에 대해 기술한 강윤호(1973:187-199), 김봉희(1992:247-253), 한길준(2009), 오채환 외(2010) 등이 있고, 한국 수학사를 기술하면서 교재류를 함께 다룬 것으로 김용운·김용국(1982)와 이상구(2013)이 있다.This paper aims to make a whole list of the mathematics textbooks in the era of the Great Han Empire and summerize bibliographical data and linguistic characteristics in view of Korean history. In chapter 1, the author reviewed former studies which deals with the mathematics textbooks in the era of the Great Han Empire. In chapter 2, the author summerized bibliographical data of 45 volumes of 32 kinds textbooks. In chapter 3, the author described linguistic characteristics of the textbooks, especially focusing on writing systems, the use of Arabic numerals, horizontal writing, and presence of index or glossary

    Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation

    No full text
    The desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
    corecore