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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Analysis of a shear-force pump

Tischer, James C. January 1967 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
2

Dynamic analysis of a hydraulic pump valve ball

Bryant, Robert Wayne. January 1963 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1963. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 55).
3

The dynamic analysis of a constant-speed universal joint

Ricketts, James Russell. January 1961 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1961. / Typescript. eContent provider-neutral record in process. Description based on print version record.
4

Development and performance of a glass getterion pump

Dahl, William Robert. January 1960 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1960. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaf 28).
5

Specimen academicum de antlia hydraulica levante

Regnér, Laurentius. Lagerström, Johannes. January 1900 (has links)
Diss.--Upsala. / Reproduction of original from Kress Library of Business and Economics, Harvard University. Goldsmiths'-Kress no. 11810.100. Includes bibliographical references.
6

Analytical and experimental investigation of an efficient viscous pump

Mainland, Marlene Elise 08 1900 (has links)
No description available.
7

Analysis of factors influencing the performance of a hydrokinetic coil pump

Opperman, Adriaan Jacobus January 2013 (has links)
A hydrokinetic coil pump (HCP) is described by its name. It is a coil pump driven by the kinetic energy in flowing water. The hydrokinetic energy is converted into mechanical energy by means of a paddle-wheel. The coil pump makes up part of the paddle-wheel and together is called a HCP. The HCP floats in a stream of flowing water while tethered to the bank. The focus of the study was to identify and analyse the factors influencing the HCP. The HCP was then optimized for rural application. Data acquisition took place through experimentation on a full scale experimental platform according to a central composite experimental design. Variables used for the experimentation included; Stream Velocity, Delivery Head, Number of Coils, Discharge, Number of Paddles, Paddle-Wheel rotational speed Overall HCP efficiencies of up to 22 percent were obtained. The efficiency would drop as the stream velocity increased. Stream velocity has been identified as the most influential factor with regards to the variables analysed by this study. The HCP is ideal for rural application. The simplicity of the design ensures reliability as well as an effective water supply solution. The HCP is ideal for slow flowing rivers and can deliver up to 1190ℓ/h to a delivery head of 5m with a stream velocity of 1.2m/s. This is sufficient to supply a small rural community with running water.
8

Fundamental rheological properties of solutions and gels determined using a texture analyser

Gregson, Christopher M. January 1999 (has links)
No description available.
9

Investment manager trading behaviour and fund performance

Gardner, Peter Alan, Banking & Finance, Australian School of Business, UNSW January 2008 (has links)
This dissertation investigates three types of investment manager trading behaviour to ascertain whether behavioural biases are present in the Australian investment management industry. In particular, this thesis examines whether these biases are detrimental to fund performance and market efficiency, and whether there is a need for regulatory review given the behaviour of institutions in their trading on the Australian Securities Exchange (ASX). The three empirical issues examined in this thesis are: leader and follower patterns in institutional trading; quarter-end gaming behaviour; and short-term trading activity and the role of institutional monitoring. Firstly, in the analysis of leader-follower behaviour, this thesis finds profitable trade packages are executed using multiple brokers as a way to accumulate a larger package in a shorter window of time and as means of enhancing disguise. Profitability is higher when these trade packages are mimicked and when there are up to three mimickers, compared to situations in which no mimicking occurs. Potential mimickers do not appear to ignore their own signal when deciding whether or not to follow when the sequence is short, but may do so for longer sequences as predicted by Grenadier (1999). It is concluded that short sequences of mimicking trades by active fund managers speed the price discovery process. Secondly, in an investigation of ??portfolio pumping?? by Australian active investment managers, this thesis finds significant abnormal stock and fund returns on the final business day of the calendar quarter-end. This thesis then identifies particular trades, appearing mostly in less liquid stocks, which accompany stocks that are marked up at quarter-end (it is not possible in this thesis to prove causation given the trades in this sample are not time-stamped). Fund managers execute more purchases than normal on the last day of the quarter in stocks in which they are overweight, providing strong evidence that manager behaviour is modified on the last day of the quarter-end. This study also finds poor-performing managers are more likely to perpetrate gaming trades, which may be as a result of career concerns and business risk management. New investors in funds would benefit substantially by delaying their entry to the fund until the day after the end of the quarter, as there is a lower entry price into the fund. However, portfolio pumping does not substantially affect the returns of extant fund investors, as the trading cost associated with the relatively small gaming trades is relatively small. Attempts by the ASX to reduce price manipulation, such as instituting a closing price call auction and then later revising the algorithm of this auction, have been effective in limiting both the number of occurrences, as well as the severity of gaming on the efficiency of the market. Thirdly, in an examination of the short-term trading activity of active investment managers which threaten exit, this thesis find that a larger number of actively trading multi-blockholders significantly raises firm performance. It remains true that an individual blockholder who intervenes to raise firm performance has to share gains with other blockholders. But firm manager effort is enhanced by the threat of exit by blockholders when they receive a bad signal concerning managerial effort. This study tests seven nested hypotheses proposed by Edmans and Manso (2008) using sequences of short-term institutional trades that threaten exit. Blockholder net profit is diminishing in the number of traders, consistent with a common signal of poor managerial performance. Moreover, these trade sequences are profitable even after transaction costs. Spreads are lower and the firm??s share price becomes more sensitive to managerial performance as more blockholders threaten exit. From the three broad investigations into fund manager activity this thesis undertakes, active fund managers are shown to behave rationally and, apart from their behaviour at quarter-end, they act in the interests of their investors, aid price discovery, reduce bid-ask spreads and thereby exhibit a positive influence on market efficiency.
10

Reduction of the nonlinearity of valving arrangements incorporating the variable jet pump

Vernon, Homer Millard 08 1900 (has links)
No description available.

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