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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.
71

Assembly of a UAV : hardware design of a UAV

BOZKURT, Ugur, Aslan, Mustafa January 2009 (has links)
This bachelor thesis is dedicated to assemble the hardware system of a UAV (Unmanned Aerial Vehicle) in order to prepare the platform for an autonomous flight in the air for a given path through the pre-programmed check points. A UAV is an aircraft that contains sensors, GPS, radio system, servomechanisms and computers, which provide the capability of an autonomous flight without a human pilot in the cockpit. A stable flight requires sensing the roll, pitch, and yaw angles of aircraft. Roll and pitch angles were ensured by a sensor system of FMA Direct Company called co-pilot flight stabilization system (CPD4), which allows controlling ailerons and elevator manually. An autopilot is required for steering the aircraft autonomously according the GPS data and the establish waypoints that the airplane have to pass by. The GPS gives heading information to the autopilot, and this uses the information of the next waypoint to decide which direction to go. Hereby an autonomous flight is provided. In this project a lego mindstorm NXT was used as an autopilot that is product of LEGO Company [1]. The output of the autopilot is used to control the airplane servos to fly in the desired direction. A software and hardware interface was designed to allow the autopilot to receive the data from the co-pilot sensor and to transmit data to the co-pilot processor, which will finally steer the actuator servos. Experiments were performed with different parts of the system and the results reported.
72

A study on the pilot plan of an integrated assistance system for instruction, discipline and guidance in Kaohsiung elementary schools

Chen, Li-chinh 06 July 2004 (has links)
The goal of the study is to understand the process that elementary schools develop¡¥the pilot plan of an integrated assistance system for instruction, discipline and guidance¡¦. Namely, from the present condition, the study will compare special results of each school, analyze the machine, course of action, difficult problems and strategies, and then interconnect the study results to recommend elementary schools in Kaohsiung consultation. In order to accomplish the research purpose, this study searched and collected documents, and employed the survey method. The subjects were the members from¡¥the pilot plan of an integrated assistance system for instruction, discipline and guidance,¡¦ and teenager counseling. And then a document analysis method was used to analyze information. The conclusions of the research were as follows: 1. There are eighteen practicable study items. Including¡§ counseling student in instruction, possessing the ideas and ability of counseling student, have tutor¡¦s responsibility, participating Adoption-Guidance¡K¡¨ 2. There are three unpracticed study items. Including¡¨ building learning school, role changing, administrative efficiency improving.¡¨ So ¡¥the pilot plan of an integrated assistance system for instruction, discipline and guidance¡¦in Kaohsiung¡¦s elementary school is a great achievement. At last, the result of study provide some suggestions for educational administration, elementary school , teachers and future studies.
73

Treatment of oil refining wastewater by pilot-scale constructed wetland systems

Shih, Pei-Yu 18 July 2001 (has links)
In most cases, data from petroleum industry wetland studies indicate that treatment wetlands are equally or more effective at removing pollutants from petroleum industry wastewaters than from other types of wastewater. In this study, we discussed the treatment efficiencies of oil-refinery industry wastewater by pilot-scale constructed wetland systems .The constructed wetland systems were one free water surface system filled with the sandy media and one subsurface flow system filled with the gravel media operated in parallel. Each system planted with Phragmites communis. The hydraulic retention time for the treatment wetland was controlled in turn at 0.96, 0.48, and 0.72 days. The experimental results showed that all of these contaminants could be reliably removed from wastewater by treatment wetland, especially the FWS. The effluents from the constructed wetland systems reusing and recovering were feasible.
74

Methods for Validatng Cockpit Design The best tool for the task

Singer, Gideon January 2002 (has links)
No description available.
75

A Big Five profile of the military pilot a meta-analysis /

Castaneda, Michael Anthony. January 2007 (has links)
Thesis (M.A.)--University of West Florida, 2007. / Title from title page of source document. Document formatted into pages; contains 65 pages. Includes bibliographical references.
76

Returning to Ananda

Bernhardt, Deja 28 April 2014 (has links)
From the sprouting of the idea for the series to the final stages of post-production for Returning to Ananda, a one-hour, made for cable-television pilot, directed by Déjà Cresencia Bernhardt; this report details the pre-production to post-production phases of its development. Included in this report are the final screenplay and various other production notes. / text
77

Reef recovery following the Late Devonian mass extinction: evidence from the Dugway Range, west-central Utah

Krivanek, Joseph G 01 June 2006 (has links)
The biotic crisis of the Late Devonian Period involved three distinct peaks of extinction intensity and preferentially eliminated reef taxa. By the end of the second peak, the Frasnian-Famennian (F-F) boundary, the dominant constructor guild member of the mid-Paleozoic, the stromatoporoids, had ceased reef construction in most parts of the world. An undescribed stromatoporoid bioherm in the Dugway Range, west-central Utah, is one of the few locations where stromatoporoids continued building reefs into the mid-Famennian. The sections are well-constrained biostratigraphically using both conodonts and stromatoporoids and range from the latest Frasnian to the Early Carboniferous. The reefal faunas are depauperate and dominated by labechiids and stylostromids, as is characteristic of most Famennian bioconstructions. In this region, reefal development was episodic with reefal units interbedded with units lacking reef taxa. The stromatoporoid survivors belong to long-ranging clades, and may represent "extinction-resistant" taxa. Both were fairly minor constituents of Frasnian reef communities.
78

Evaluation of CMA+AMA Equalization for SOQPSK Modulation in Aeronautical Telemetry

KoneDossongui, Serge, Opasina, Oladotun, Umuolo, Henry, Betelle, Habtamu, Thang, Solomon, Shrestha, Robin 10 1900 (has links)
ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV / Multipath interference continues to be the dominant cause of telemetry link outages in low-elevation angle reception scenarios. The most reliable and universally applicable solution to this problem is in the form of equalization. Previous work in this area has considered the Constant modulus algorithm (CMA) equalizer operating in a blind adaptive mode. To the extent that knowledge of the multipath channel improves the performance of CMA and related equalizers and permits the use of other equalization techniques, data aided equalizers are of interest. Channel knowledge is obtained by comparing the received samples with the samples corresponding to a known bit pattern (called a pilot block) periodically inserted in the telemetry data stream. The main objective of this research is to evaluate the performance of a modified CMA equalization algorithm, which has the property of automatically resolving the phase of the QPSK modulated symbol, and to determine its suitability for use with SOQPSK-TG by taking into account the capability of exploiting the presence of a periodically inserted pilot block. As an initial effort in that direction, this paper provides simulation results of the error performance of the blind linear combination of CMA and alphabet matched algorithm (AMA) equalizer as compared to that of pilot assisted equalization with SOQPSK modulation over aeronautical channel.
79

An evaluation of the pilot scheme of urban renewal in Hong Kong

Mo, Chan-ming., 毛燦明. January 1980 (has links)
published_or_final_version / Public Administration / Master / Master of Social Sciences
80

AutoPilot: A Message-Passing Parallel Programming Library for the IMAPCAR2

Kelly, Benjamin 14 March 2013 (has links)
The IMAPCAR2 from Renesas Electronics is an embedded realtime image processor, combining a single core with a 128-way SIMD array. At runtime, sections of the SIMD array can be retasked as additional CPU cores, interconnected via a message passing ring. Using these cores effectively, however, is made difficult by the low-level nature of the message passing API and the lack of cache coherency between processors. Developing and debugging software for this platform is a difficult task. The AutoPilot library addresses this by providing a high-level message-oriented parallel programming model for the IMAPCAR2. AutoPilot's API is closely based on that of Pilot, a wrapper around the Message Passing Interface (MPI) for cluster computing. By reimplementing the Pilot API for the IMAPCAR2, AutoPilot shows that its processes-and-channels architecture is a viable choice for parallel programming on cache-incoherent multicore architectures. At the same time, it provides a simpler API for programmers, with builtin safety checks that eliminate some common sources of errors.

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