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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.

Design for patient safety : a prospective hazard analysis framework for healthcare systems

Long, Jieling January 2015 (has links)
No description available.

A heterogeneous finite element method and a leakage corrected homogenization technique

Nichita, Eleodor Marian 12 1900 (has links)
No description available.

The development of an interlock and control system for a clinical proton therapy system

Fulcher, TJ January 1995 (has links)
Thesis (Masters Diploma (Technology))--Cape Technikon, Cape Town, 1995 / The development of a 200 MeV clinical proton therapy facility at the National Accelerator Centre required an interlock and control system to supervise the delivery of radiation to a patient. The interlock and control system is responsible for ensunng that nobody enters the treatment vault during an irradiation, the extraction of the beamstop devices 'from the beam-line to allow the irradiation of the patient and the insertion of those beam-stop devices when an error condition is detected. Because of its nature, the interlock and control system should be designed so that in the event of an error condition being detected, it should fail to a safe state. This is achieved by modelling the interlock and control system with an appropriate modeling method. This thesis describes a graphical modelling method called Petri-nets, which was used to model the system, and the software developed from the model.

Workplace violence prevention programme targeting nursing staff in hospital setting

金達人, Kam, Tat-yan, Deyoung. January 2008 (has links)
published_or_final_version / Nursing Studies / Master / Master of Nursing

Design, construction and testing of a prototype holonomic autonomous vehicle

Volland, Kirk N. 12 1900 (has links)
United States Department of Defense (DoD) autonomous vehicle efforts have concentrated research in areas that support development of unmanned ground and air battlefield vehicles. Little attention has been paid to applying robotics to automate routine tasks. A robotic solution consisting of a prototype holonomic vehicle is proposed to search for, detect, and remove debris that could cause foreign object damage (FOD) to turbine-engine aircraft operated from ships. Holonomic, or omnidirectional, motion was realized by solving the system of equations governing the vehicle's motion atop a plane surface. Translational motion without chassis rotation was achieved through motion control using a single board computer, a pulse width modulation (PWM) and optical isolation circuit, and a low-cost inertial measurement unit (IMU). Obstacle detection and avoidance was realized by constructing a microprocessor-controlled scanning ultrasonic sonar detector head and controller circuit. The sonar detector demonstrated 360 (degrees) coverage and centimeter resolution. Rudimentary autonomous operation and wireless manual control via a Java graphical user interface (GUI) were achieved in an indoor environment. / US Navy (USN) author.

Modification of the exhaust system in the welding lab of Durland Hall at Kansas State University

K̲h̲ān̲, Arshad ʹAlī January 2010 (has links)
Typescript, etc. / Digitized by Kansas Correctional Industries

A model of ozone generation in positive polarity electrostatic precipitators

Krakowiecki, Joseph Martin January 2011 (has links)
Digitized by Kansas Correctional Industries

Kansas highway safety design : state-of-the-art

Wilson, Edward Lee January 2010 (has links)
Typescript, etc. / Digitized by Kansas Correctional Industries

Exposure to fumes and gases during welding operations.

Sutherland, Robert Allan, mikewood@deakin.edu.au January 1998 (has links)
The exposure to fumes and gases is one of the hazards associated with welding operations. Apart from research conducted on the mechanism of fume and gas formation and the relationship between fume formation rates and common welding parameters, little is known about the exposure process during welding. This research project aimed to identify the factors that influence exposure, develop an understanding of their role in the exposure process and through this understanding formulate strategies for the effective control of exposure during welding. To address these aims a literature review and an experimental program was conducted The literature review surveyed epidemiological, toxicological and exposure data. The experimental program involved three approaches, the first, an evaluation of the factors that influence exposure by assessing a metal inert gas/mild steel welding process in a workshop setting. The second approach involved the study of exposure in a controlled environment provided by a wind tunnel and simulated welding process. The final approach was to investigate workplace conditions through an assessment of exposure and control strategies in industry. The exposure to fumes and gases during welding is highly variable and frequently in excess of the health based exposure standards. Exposure is influenced by a number of a factors including the welding process, base material, arc time, electrode, arc current, arc voltage, arc length, electrode polarity, shield gas, wire-to-metal-work distance (metal inert gas), metal transfer mode, intensity of the UV radiation (ozone), the frequency of arc ignitions (ozone), thermal buoyancy generated by the arc process, ventilation (natural and mechanical), the welding environment, the position of the welder, the welders stance, helmet type, and helmet position. Exposure occurs as a result of three processes: the formation of contaminants at or around the arc region; their transport from the arc region, as influenced by the entry and thermal expansion of shield gases, the vigorous production of contaminants, thermal air currents produced by the heat of the arc process, and ventilation; and finally the entry of contaminants into the breathing zone of the welder, as influenced by the position of the welder, the welders stance, helmet type, and the helmet position. The control of exposure during welding can be achieved by several means: through the selection of welding parameters that generate low contaminant formation rates; through the limitation of arc time; and by isolating the breathing zone of the welder from the contaminant plume through the use of ventilation, welder position or the welding helmet as a physical barrier. Effective control is achieved by careful examination of the workplace, the selection of the most appropriate control option, and motivation of the workforce.

Some implications of the prediction of seismic risk

Reynolds, Ronald B. January 1978 (has links) (PDF)
No description available.

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