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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.
31

Laboratory experimental study of ocean waves propagating over a partially buried pipeline in a trench layer

Sun, K., Zhang, J., Gao, Y., Jeng, D., Guo, Yakun, Liang, Z. 23 January 2019 (has links)
Yes / Seabed instability around a pipeline is one of the primary concerns in offshore pipeline projects. To date, most studies focus on investigating the wave/current-induced response within a porous seabed around either a fully buried pipeline or a thoroughly exposed one. In this study, unlike previous investigations, a series of comprehensive laboratory experiments are carried out in a wave flume to investigate the wave-induced pore pressures around a partially embedded pipeline in a trench layer. Measurements show that the presence of the partially buried pipeline can significantly affect the excess pore pressure in a partially backfilled trench layer, which deviates considerably from that predicted by the theoretical approach. The morphology of the trench layer accompanied with the backfill sediments, especially the deeper trench and thicker backfill (i.e.,b≥1D,e≥0.5D), provides a certain degree of resistance to seabed instability. The amplitude of excess pore pressure around the trench layer roughly exhibits a left-right asymmetric distribution along the periphery of the pipeline, and decays sharply from the upper layer of the trench to the lower region. Deeper trench depth and thicker buried layer significantly weaken the pore-water pressures in the whole trench area, thus sheltering and protecting the submarine pipeline against the transient seabed liquefaction. / The National Key research and development program of China (2017YFC1404200), the research grants of Jiangsu (BK20150804), the marine renewable energy research project of State Oceanic Administration (GHME2015GC01), Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University (Project No: 2016491011), the Royal Academy of Engineering the Distinguished Visiting Fellowship (DVF1718-8-7)
32

3D graphics acceleration on a multiprocessor architecture

Bayik, Tolga January 1999 (has links)
No description available.
33

An experimental and theoretical study of the mechanics of self-burial of seabed oil and gas pipeline

Hosseinadeh-Dalir, Ali January 1996 (has links)
No description available.
34

Methods and tool for implementing run-time reconfigurable FPGA designs

Shirazi, Nabeel January 1999 (has links)
No description available.
35

A general model for leak detection in liquid petroleum pipelines

Wahab, A. B. A. January 1987 (has links)
No description available.
36

Impact moles and directional drills : safe installation distances for existing services

Hunter, Alistair Edward January 2000 (has links)
No description available.
37

En arbetsprocess för att skapa 3D datorgrafik till film : Från karaktärsdesign till 3D animation

Fehér, Marcus, Borghult, Mikael January 2014 (has links)
Det är svårt att veta hur man på snabbast möjliga sätt kan skapa 3D datorgrafik till film. Detta arbete handlar om processen (pipeline) för att skapa ett troll i 3D till filmat material med målet att arbeta så tidseffektivt som möjligt utan att försämra kvaliteten. Vi utformar en specifik pipeline med hjälp av kunskaper från nyckelpersoner i filmindustrin, egna erfarenheter samt en litteraturstudie. Kortfilmen består av ett 3D troll sammansatt till en minuts filmat material. Kortfilmen förklarar de olika stegen i arbetsprocessen; filmskapandet och vad man ska tänka på från idé till slutlig animerad produkt samt val av programvaror.
38

The Drivers of Mergers and Acquisitions in Pharmaceutical Industry

Ji, Fan 2012 May 1900 (has links)
We examine the determinants and drivers of 112 mergers and acquisitions (M&A) activities exceed 50 million values in the pharmaceutical industry using COMPUSTAT, SDC and FDA data during the period 1980-2010 with random effect logit model. We find direct evidence on the relationship between an acquisition activity of a firm and its pipeline productivity and qualities. For the acquiring firms, the mergers are motivated by the decreasing trend in the pipeline productivity which is measured by new molecular entities (NMEs) approvals and the fewer top-sale drugs before merging. In the meantime, the research & development and advertising expense are having fewer impacts. For the target firms, the firms which are having higher drug quality and higher drug sales are more popular in the mergers and acquisitions target market. In addition, a higher research and development expense is also a significant indicator on the firm's "quality" which signals the higher possibility to be targeted.
39

Skapande av animationer för interaktiv spelmedia genom motion capture

Lau, Kakee January 2013 (has links)
In this thesis I will propose and test a pipeline for creating in-game animations using motion capture technology, with the aim to export to a 3D game engine, such as UDK or similar. Even though there are already established pipelines for creating in-game animations in the game industry, they are not of public knowledge and dissemination of information is hindered by the severe NDA (non-disclosure agreements) imposed on the studios and artists. I will therefore use my experience with game production and as a student, to research and propose an optimal pipeline for developing in-game animation that may be used by other students, researchers and independent game developers. The methodology used to test the pipeline will be a case study based on the student project Synergy, which I am developing with other third year students also attending the Game design Education at Gotland University.
40

Design and Implementation of an ARM10-like Microprocessor

Hu, Ching-chi 01 April 2008 (has links)
ARM microprocessor is one of the CPU most extensively applied to electronic products in the market, with the advantages of high efficiency, low power consumption, and low cost. The purpose of this thesis is to design and implement an ARM10-like microprocessor SYS32TME-III, it is based on the frame of 32-bits RISC architecture of ARM10, and to analyze the character of derivative architecture on RTL design with the point of view between the process of the design and implementation. For design strategy, speed 200MHz is the goal, and performance-optimized is the main point. Then, improve the mechanisms of adopting instruction pre-fetch, branch prediction, parallel execution, executive path of instruction and operation unit, and compare its results, probe into what¡¦s learning from the design.

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