Digital Commons Network^™

Bridgman Crystal Growth Of An Alloy With Thermosolutal Convection Under Microgravity Conditions, J. E. Simpson, S V. Garimella, H. C. Degroh Iii, R. Abbaschian

CTRC Research Publications

The solidification of a dilute alloy (bismuth-tin) under Bridgman crystal growth conditions is investigated. Computations are performed in two dimensions with a uniform grid. The simulation includes the species concentration, temperature and flow fields, as well as conduction in the ampoule. Fully transient simulations have been performed, with no simplifying steady state approximations. Results are obtained under microgravity conditions for pure bismuth, and for Bi-0.1 at.% Sn and Bi-1.0 at.% Sn alloys, and compared with experimental results obtained from crystals grown in the microgravity environment of space. For the Bi-1.0 at.% Sn case the results indicate that a secondary convective …

The Virtual Writing Center: Developing Ethos Through Mailing List Discourse, Diana C. Bell, Mike T. Hubler

The Writing Center Journal

No abstract provided.

Does Frequency Of Visits To The Writing Center Increase Student Satisfaction? A Statistical Correlation Study - Or Story, Peter Carino, Doug Enders

The Writing Center Journal

No abstract provided.

Tutor Training And Reflection On Practice, Jim Bell

The Writing Center Journal

No abstract provided.

Triangulation In The Writing Center: Tutor, Tutee, And Instructor Perceptions Of The Tutor's Role, Terese Thonus

The Writing Center Journal

No abstract provided.

Design Guidelines For Deploying Closed Loop Systems, Andrew P. Nichols, Darcy M. Bullock

JTRP Technical Reports

Closed loop systems are becoming the preferred method of operating coordinated traffic signal systems. Some of the benefits of a closed loop system include remote controller access, synchronization of controller time clocks, and orderly transition between coordination plans. With ensured time clock synchronization, the coordination of traffic signals becomes more reliable, which leads to optimal vehicle progression through the system. However, due to the complexity and relative infrequent implementation in more rural districts of closed loop systems, it is very difficult to obtain a successful deployment. This manual provides a step-by-step procedure for designing the parameters, implementing, testing, and field …

A Real-Time Offset Transitioning Algorithm For Coordinating Traffic Signals, Darcy M. Bullock, Montasir Abbas

JTRP Technical Reports

This report introduces an adaptive real-time offset transitioning algorithm that can be viewed as an integrated optimization approach designed to work with traditional coordinated-actuated systems. The Purdue Real-Time Offset Transitioning Algorithm for Coordinating Traffic Signals (PRO-TRACTS) adds to the controllers the ability to adaptively change their offsets in response to changes in traffic pattern, providing an intermediate solution between traditional coordinated-actuated control systems and adaptive control systems. To facilitate implementation, a new National Transportation Communication for ITS Protocol (NTCIP) object for capturing detector actuation at the controller’s level is defined in this report. The unique cycle-based tabulation of volume and …

Review: Good Intentions, Christina Murphy

The Writing Center Journal

No abstract provided.

Searching For Robert Moore, Neal Lerner

The Writing Center Journal

No abstract provided.

Perspectives On The Directive/Non-Directive Continuum In The Writing Center, Irene Clark

The Writing Center Journal

No abstract provided.

Evaluation And Policy For Bridge Deck Expansion Joints, Luh M. Chang, Yao-Jong Lee

JTRP Technical Reports

This report is an overview of the research that was performed for the Indiana Department of Transportation (INDOT) concerning the performance of bridge deck expansion joints. The purpose of the research is to evaluate several types of joints currently in use and also provides the evaluation criteria for rating the joint condition. The types of joints investigated are Compression Seal (B.S.) joint, Strip Seal (S.S.) joint, Integral Abutment Jointless (I.A.) joint, Poured Silicone (XJS) joint, and Polymer Modified Asphalt (LDI and PaveTech) joint. The research was performed by questionnaire surveys, Roadway Management data analysis, expert interviews, and site assessment. The …

Follow-Up Study To Fhwa/In/Jhrp-92/22: Development Of A Strategy For Compliance With Epa And Osha Regulations Applicable To Indot Facilities, Lynn A. Corson

JTRP Technical Reports

The objectives of this research were - 1. To assess the department’s progress at selected facilities toward minimizing, reducing, recycling, reusing, reclaiming and eliminating by-products of operations classified as hazardous, solid or special waste. The department’s progress toward modifying or eliminating (such as by contracting) operations or its use of alternate products to reduce potential environmental liability and associated costs will be examined, 2. To observe and analyze selected operations at a sample of facilities visited during the first study [March 1990 – November 1992] to identify where additional strengthening is needed. Additional facilities recommended by the department will also …

Real-Time Determination Of Soil Type, Water Content, And Density Using Electromagnetics, Vincent P. Drnevich, Chih-Ping Lin, Quanghee Yi, Janet Elaine Lovell

JTRP Technical Reports

The primary objective of this study was to explore the potential use of electromagnetic characteristics of soils using the Time Domain Reflectometry (TDR) technique to identify physical properties of soils. Three fundamental studies in this exploration are the frequencydependent electromagnetic properties of soils, the wave propagation in a TDR system, and the inverse analyses of TDR waveforms. The three-phase model for soils was extended to a four-phase model so as to account for the interface effect and hence the soil fineness. The physical parameters of the four-phase model are related to the frequency-dependent dielectric permitivity of the soil through a …

Hard Water: Politics And Water Supply In Milwaukee, 1870-1995, Kate Foss-Mollan

Purdue University Press Books

Hard Water: Politics And Water Supply In Milwaukee, 1870-1995 by educator and urban studies specialist Kate Foss-Mollan is the documented and historical account of the water supply of Milwaukee, Wisconsin. Foss-Mollan blends urban history, technology, biology, research, and political science into a remarkably intriguing and informative saga. From conflicts over supplying poor neighborhoods to partisan debates regarding the necessity of a filtration plant, Hard Water spans over a century with an eye-opening account of the wrangling, machinations, and more all about a seemingly simple drink of water. Very highly recommended for American urban studies reading lists.

Theoretical Structure Of Dynamic Gtap, Elena Ianchovichina, Robert Mcdougall

GTAP Technical Papers Archive

This paper documents the foreign asset ownership and investment theory of the dynamic GTAP model (GTAP-Dyn). The new investment theory offers a disequilibrium approach to modeling endogenously international capital mobility. It permits a recursive solution procedure, a feature that allows easy implementation of dynamics into any static AGE model without imposing limitations on the model's size. The method involves treating time as a variable, not as an index. Having time as a variable allows the construction of dynamic GTAP with minimum modifications to the existing structure of GTAP, by separating the theory of static GTAP from the length of run.

Simulation Of Instability Onset In A Gas Turbine, S. Fleeter, Elias N. Houstis, John R. Rice, C. Zhou

Department of Computer Science Technical Reports

No abstract provided.

The Goethean Concept Of World Literature And Comparative Literature, Hendrik Birus

CLCWeb: Comparative Literature and Culture

In his article, "The Goethean Concept of World Literature and Comparative Literature," Hendrik Birus presents a new reading and understanding of Goethe's famous dictum: "National literature does not mean much at present, it is time for the era of world literature and everybody must endeavour to accelerate this epoch" (Eckermann 198, 31 January 1827). According to Birus, this dictum is not to be taken at face value today and argues that Goethe's concept of world literature ought to be understood in the sense that today it is not the replacement of national literatures by world literature we encounter; rather, it …

Comparative Literature And The Culture Of The Context, Jan Walsh Hokenson

CLCWeb: Comparative Literature and Culture

In her article "Comparative Literature and the Culture of the Context," Jan Walsh Hokenson poses a series of interrogatives around the question of what, as comparatists, we have learned about "literature in the context of the culture it represents" (Mario J. Valdés). She argues that in theoretical terms, culture has become the new vessel for the old wine of sources and influences, and that global intercultural contexts will change the analytical categories for comparatists in the coming millennium. In Hokenson's opinion, if comparative literature is to survive it must regain the panoptic view, and if it is to thrive as …

Comparative Literature And The Ideology Of Metaphor, East And West, Karl S.Y. Kao

CLCWeb: Comparative Literature and Culture

In his article, "Comparative Literature and the Ideology of Metaphor, East and West," Karl S.Y. Kao offers a comparative reading of the ideological function of metaphor within Eastern and Western thinking. Nietzsche is recognized as the earliest serious challenger to the concepts of meaning and truth within the West, whilst Derrida and de Man are discussed with respect to their conception that figurality is inherent within -- and integral to -- Western philosophical and literary discourse. Parallel to this conception of conceptuality is the Eastern view of language and literature. Kao notes that the Western opposition between logic and rhetoric …

Comparative Literature In Slovenia, Kristof Jacek Kozak

CLCWeb: Comparative Literature and Culture

In his article, "Comparative Literature in Slovenia," Kristof Jacek Kozak provides a historical overview of the practice of theory in the discipline of comparative literature in Slovenia. Despite its small size and relative low profile, Slovenia is taken as an exemplar within comparative literature scholarship. Kozak observes that the development of comparative literature in Slovenia may be characterized by an attempt to both arbitrate and mediate between distinct poles. On the one hand, Slovenian scholarship has felt the need to secure or determine itself in accordance with its own interests and concerns. On the other hand, it has recognized the …

Comparative Literature In The United States, Manuela Mourão

CLCWeb: Comparative Literature and Culture

In her article, "Comparative Literature in the United States," Manuela Mourão offers a historical overview of the debates about comparative literature as a discipline, from the early years of its institutionalization in the United States until the present. Mourão summarizes the most pointed -- and anxious -- interventions of prominent scholars in the field and she discusses the permanent sense of crisis that has typically been part of the discipline. Further, Mourão links the permanent anxiety of the discipline with the prescriptive tendencies that have continued to endure until the present. She then looks at the debates that followed the …

The Advantages Of Critical And Systematic Literary Taxonomies: A Review Article Of New Work By Cerquiglini, Juvan, And Zima, Kristof Jacek Kozak

CLCWeb: Comparative Literature and Culture

No abstract provided.

Performance Enhancement By Memory Reduction, Yonghong Song, Rong Xu, Cheng Wang, Zhiyuan Li

Department of Computer Science Technical Reports

No abstract provided.

An Access Protocol To Provide Qos In Wireless :Networks, Xin Liu, Edwin K. P. Chong, Ness B. Shroff

Department of Electrical and Computer Engineering Technical Reports

In wireless networks, contention-and-reservation schemes provitle promising implementations of packet switching, which efficiently multiplexes different classes of traffic. In this report, we present an access scheme to satisfy the QoS requirements for two classes of traffic during the contention-based communicat,ion. In this algorithm, different classes of users contend with other users for resources based on controlled class-dependent permission probabilities. We prove that our algorithm is stable for a large class of arrival processes. Under certain QoS requirements, we derive an upper-bound for the throughput for a general class of random access algorithms. We show that the throughput of our algorithm …

Multiplex: Unifying Conventional And Speculative Thread-Level Parallelism On A Chip Multiprocessor, Seon Wook Kim, Chong-Liang Ooi, Il Park, Rudolf Eigenmann, Babak Falsafi, T. N. Vijaykumar

Department of Electrical and Computer Engineering Technical Reports

Traditional monolithic superscalar architectures, which extract instruction-level parallelism (ILP) to achieve high performance, are not only becoming less effective in improving the clock speed and ILP but also worsening in design complexity and reliability across generations. Chip multiprocessors (CMPs), which exploit thread-level parallelism (TLP), are emerging as an alternative. In one form of TLP, the compilerlprogramrner extracts truly independent explicit threads from the program, and in another, the compiledhardware partitions the program into speculatively independent implicit threads. However, explicit threading is hard to program manually and, if automated, is limited in performance due to serialization of unanalyzable program segments. Implicit …

Raf Wings Over Florida: Memories Of World War Ii British Air Cadets, Willard Largent

Purdue University Press Books

In the early 1940s, prior to the United States' entry into World War II, through the joint efforts of President Franklin D. Roosevelt and Prime Minister Winston Churchill, British soldiers were sent to the United States for flight training. This collection gives first-person accounts of the men who learned the art of flying in a place far from their homeland, Florida. The stories provide a wonderful contrast between the two cultures and are told in the voices of British cadets, American cadets who trained with them, instructors, and other individuals who welcomed the British cadets into their homes and lives.

A New Regional Household Demand System For Gtap, Robert Mcdougall

GTAP Working Papers Archive

The GTAP final demand system has some known defects: the computation of the equivalent variation is not exact; with non-standard demand parameters, the equivalent variation may be grossly in error; the decomposition of the equivalent variation contains a nuisance term.

We find a further defect, that the upper-level demand equations are invalid. We revise the model to remove these defects.

The Department Of Energy's Foreign Visitor's Program: Scientific Inquiry Vs. National Security, Bert Chapman

Libraries Research Publications

No abstract provided.

Analyzing East/West Power Politics In Comparative Cultural Studies, William H. Thornton

CLCWeb: Comparative Literature and Culture

In his article, "Analyzing East/West Power Politics in Comparative Cultural Studies," William H. Thornton acknowledges culture as a central force on the geopolitical map and undertakes at once to preserve the strategic potency of political realism and to move beyond the "billiard ball" externality of both neo- and traditional realisms. Although Huntington and Fukuyama are taken seriously on the question of East/West power politics, Thornton develops a world view by grounding balance-of-power politics in national and local (not just civilizational) social reality. Further, Thornton argues against external democratic teleologies both Huntington and Fukuyama have imposed on the cultural Other. The …

The Hazard Of Hidden Interactions: A Reanalysis Of Designs In Reaction-Time Studies On Metaphor, Johan F. Hoorn

CLCWeb: Comparative Literature and Culture

In his article, "The Hazard of Hidden Interactions: A Reanalysis of Designs in Reaction-Time Studies on Metaphor," Johan F. Hoorn argues that research designs in empirical literature and the psychology of aesthetics often include unanalyzed factors. The nature of these factors may be linguistic such as word frequency or lexical ambiguity or technical such as presentation order, repeated measures, etc. By not correctly analyzing an experiment, higher-order interactions may go unnoticed, while interfering with results. Hoorn reviews a sample of reaction-time experiments on metaphors, some of which are considered key studies in the area. Because the quality of an argument …