Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Thermal sensors"”.
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Flexible, stretchable, biointegrated arrays of electronic thermal sensors and actuators for advancements in clinical medicine
Continuous, precision measurements of thermal information related to the human body can provide significant insights into important physiological phenomena, such as blood flow changes, stress, infection and thermoregulation. However, technologies to-date have either been hindered by a high …
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Optoelectronic fiber interface design
… been produced in these fibers including optical sensors, thermal sensors and even transistors. The use of these fiber devices in a variety of applications was explored. A large-scale, lensless imager, an optical communication system, a thermal sensing array and a logic gate were designed to use …
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High resolution, low cost, privacy preserving human motion tracking system via passive thermal sensing
Thermal imaging is powerful but expensive. This thesis presents an alternative thermal sensing system capable of tracking human motion by using a novel projection mechanism from an array of inexpensive single-bit thermal sensors. Since thermal sensor performance is currently limited by lengthy …
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Development and evaluation of a thermal model for haptic interfaces
The thermal interaction between the skin and an object is influenced by the thermal properties and initial temperatures of the skin and object, and by the contact force and surface roughness of the contact surfaces. This thermal interaction is modeled in this research which characterizes the …
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Hybrid structures for molecular level sensing
… polymer coatings and miniaturized sensors. In this work, direct evidence is given showing that polymer coatings comprised of deliberately selected molecular segments with very different chemistry can have switchable properties, and that the surface composition can be precisely …
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Tempest: A Framework for High Performance Thermal-Aware Distributed Computing
… than ever before. This results in increased thermal dissipation, the need for powerful cooling systems, and ultimately a reduction in system reliability as temperatures increase. Over the past several years, the research community has reacted to this problem by producing software tools such …
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Multifunctional Wireless Gut-Brain Neurotechnology
… optogenetics, chemogenetics, and activity-based sensors have revolutionized studies of the brain. However, application of these methodologies for studies of brain-body circuits is reliant on engineered devices that support these sophisticated functions in peripheral organs too. Studying …
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Correlation between structure, doping and performance of thermoelectric materials
Thermoelectric materials can convert thermal energy into electrical energy and vice-versa. They are widely used in energy harvesters, thermal sensors, and cooling systems. However, the low efficiency and high cost of the known material compositions limit their widespread utilization in electricity …
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Intelligent transport systems for South Africa: contextual investigation of the application of non-motorised transport intelligent transport measures
… Netherlands, discussed the use of thermal detection sensors to improve the efficiency of pedestrian push buttons at signalised intersections for smoother traffic, less vehicle idling, and fewer frustrated motorists. By implementing these sensors, the city officials reduced vehicle …
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Calibration and Validation of an in Vitro Ultrasound Device to Deliver Targeted Thermal Enhancement of hMSC Osteogenesis
… become acoustic intensity waves that can induce thermal, and non-thermal effects that alter cell function when applied. In our prior work, the effects of thermal dosing on hMSC cultures induced to osteogenesis was explored, and it was determined that thermal dosing via heat shocking in an …
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Modelling and Design Optimisations of CMOS MEMS Single Membrane Thermopile Detector Arrays
Thermal imaging devices based on Complementary Metal-Oxide-Semiconductor (CMOS) and Micro-Electro-Mechanical System (MEMS) technology are widely used across consumer and industrial applications. The combination of CMOS and MEMS technologies allows for the production of devices with high …
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Management of stem rot of peanut using optical sensors, machine learning, and fungicides
… needed. Previous studies have utilized optical sensors combined with machine learning analysis for the early detection of plant diseases, but these studies mainly focused on foliar diseases. Few studies have applied these technologies for the early detection of soilborne diseases in field crops, …
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Αναγνώριση ψυχοσωματικής κατάστασης προσώπου με τη χρήση θερμικής υπέρυθρης ακτινοβολίας
Στη Διδακτορική Διατριβή εξετάζεται η δυνατότητα διαπίστωσης κατάστασης μέθης με τη χρήση θερμικών υπέρυθρων εικόνων του προσώπου. Η ιδέα στηρίζεται στο γεγονός ότι το δίκτυο των αιμοφόρων αγγείων του προσώπου θα παρουσιάζει σε κατάστασης μέθης αυξημένη δραστηριότητα. Η διαπίστωση αυτή θα μπορούσε …