The Automated wheelchair

Automation refers to the use of technology to execute tasks through programmed instructions and automated control mechanisms to ensure accurate execution. This minimizes human involvement and encompasses various fields, including business process automation. A notable form of automation is assistive technology, which refers to any device or software that enhances individuals\u27 learning, communication, or overall functionality. This can range from advanced tools like computers to simpler aids like walking sticks. Assistive technology aims to promote inclusivity and participation, particularly among individuals with disabilities, the elderly, and those with non-communicable diseases. The Automated Airport Wheelchair is a culmination of prior projects developed over time. This wheelchair offers two modes of operation: automatic and manual. In the automatic mode, the wheelchair can either go to a desired location set in the wheelchair or follow a friend via an app

Simulation of a Miniature, Low-Power Time-of-Flight Mass Spectrometer for In Situ Analysis of Planetary Atmospheres

We are implementing nano- and micro-technologies to develop a miniaturized electron impact ionization mass spectrometer for planetary science. Microfabrication technology is used to fabricate the ion and electron optics, and a carbon nanotube (CNT) cathode is used to generate the ionizing electron beam. Future NASA planetary science missions demand miniaturized, low power mass spectrometers that exhibit high resolution and sensitivity to search for evidence of past and present habitability on the surface and in the atmosphere of priority targets such as Mars, Titan, Enceladus, Venus, Europa, and short-period comets. Toward this objective, we are developing a miniature, high resolution reflectron time-of-flight mass spectrometer (Mini TOF-MS) that features a low-power CNT field emission electron impact ionization source and microfabricated ion optics and reflectron mass analyzer in a parallel-plate geometry that is scalable. Charged particle electrodynamic modeling (SIMION 8.0.4) is employed to guide the iterative design of electron and ion optic components and to characterize the overall performance of the Mini TOF-MS device via simulation. Miniature (less than 1000 cubic centimeters) TOF-MS designs (ion source, mass analyzer, detector only) demonstrate simulated mass resolutions greater than 600 at sensitivity levels on the order of 10(exp -3) cps/molecule N2/cc while consuming 1.3 W of power and are comparable to current spaceflight mass spectrometers. Higher performance designs have also been simulated and indicate mass resolutions approximately 1000, though at the expense of sensitivity and instrument volume

The mapping of velocity profiles in a three generation lung model using Particle Image Velocimetry flow analysis techniques

The intent of this thesis was to develop an understanding for the particle flow characteristics in the human lung by examining particle flow profiles in a three generation lung model. To develop this understanding, experimentally derived flow profiles were compared to analytical solutions, where applicable, and Computational Fluid Dynamics (CFD) generated models for validation of both the CFD model and the experimental set-up. Validation of flow velocities in a three generation model could contribute significantly to the medical industry as a better understanding of particle behavior in the lung could lead to more accurate treatment of certain diseases and better prediction of health effects of inhaled contaminants. Particle flow in a three generation lung model was studied using a technique known as Particle Image Velocimetry (PIV). PIV involves passing a widely dispersed laser beam through a flow field of specifically sized and fluorescently colored particles. These fluorescent particles are photographed by a high-speed camera under high magnification. These images are then digitally sent to VisiFlow analysis software where each particle\u27s flow path is mapped and converted, through a cross-correlation technique, into a vector field, from which the velocity profiles can be derived. Following successful interpretation of the experimentally derived velocity profiles, a comparison was drawn between the experimentally collected data and the anticipated result based on an existing CFD model. This comparison served to not only validate the experimental test set-up but also to validate the CFD model. A favorable correlation between the experimental results and the CFD results provided confidence that a valid solution for flow profiles was achieved. Achieving a valid experimental result was dependent on many factors. The ability of the test setup to accurately produce flow profiles was measured using less complicated and easily calculated models. In doing so, confidence was developed that current scientific, analytical and experimental practices and procedures were accurately eliminating or minimizing sources of error and ultimately providing an accurate solution. As a result, not only was a valid experimental model derived but a thorough understanding of proper laboratory techniques was achieved

Investigating Potential Interventions on disruptive impacts of Industry 4.0 technologies in Circular Supply chains: Evidence from SMEs of an Emerging Economy

As a transversal theme, the intertwining of digitalization and sustainability has crossed all Supply Chains (SCs) levels dealing with widespread environmental and societal concerns. This paper investigates the potential interventions and disruptive impacts that Industry 4.0 technologies may have on pharmaceutical Circular SCs (CSCs). To accomplish this, a novel method involving a literature review and Pythagorean fuzzy-Delphi has initially been employed to identify and screen categorized lists of Industry 4.0 Disruptive Technologies (IDTs) and their impacts on pharmaceutical CSC. Subsequently, the weight of finalized impacts and the performance score of finalized IDTs have simultaneously been measured via a novel version of Pythagorean fuzzy SECA (Simultaneously Evaluation of Criteria and Alternatives). Then, the priority of each intervention for disruptive impacts of Industry 4.0 has been determined via the Hanlon method. This is one of the first papers to provide in-depth insights into advancing the study of the disruptive action of Industry 4.0 technologies cross-fertilizing CE throughout pharmaceutical SCs in the emerging economy of Iran. The results indicate that digital technologies such as Big Data Analytics, Global Positioning Systems, Enterprise Resource Planning, and Digital Platforms are quite available in the Irans' pharmaceutical industry. These technologies, along with four available interventions, e.g., environmental regulations, subsidy, fine, and reward, would facilitate moving towards a lean, agile, resilient, and sustainable supply chain through the efficient utilization of resources, optimized waste management, and substituting the human workforce by machines

Space programs summary no. 37-29, volume VI FOR the period July 1, 1964 to August 31, 1964. Space exploration programs and space sciences

Summaries covering system development and operations of Ranger VII, Surveyor, and Mariner spacecraft, and engineering development at deep space network facilitie

Smart home technology for aging

The majority of the growing population, in the US and the rest of the world requires some degree of formal and or informal care either due to the loss of function or failing health as a result of aging and most of them suffer from chronic disorders. The cost and burden of caring for elders is steadily increasing. This thesis focuses on providing the analysis of the technologies with which a Smart Home is built to improve the quality of life of the elderly. A great deal of emphasis is given to the sensor technologies that are the back bone of these Smart Homes. In addition to the Analysis of these technologies a survey of commercial sensor products and products in research that are concerned with monitoring the health of the occupants of the Smart Home is presented. A brief analysis on the communication technologies which form the communication infrastructure for the Smart Home is also illustrated. Finally, System Architecture for the Smart Home is proposed describing the functionality and users of the system. The feasibility of the system is also discussed. A scenario measuring the blood glucose level of the occupant in a Smart Home is presented as to support the system architecture presented

Space telescope observatory management system preliminary test and verification plan

The preliminary plan for the Space Telescope Observatory Management System Test and Verification (TAV) is provided. Methodology, test scenarios, test plans and procedure formats, schedules, and the TAV organization are included. Supporting information is provided