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.
Results
Showing 1 to 20 of 499 for “"ENERGY HARVESTING"”.
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Footfall energy harvesting : footfall energy harvesting conversion mechanisms
… where a device has an onboard self sustaining energy supply. This approach promises to close the gap between the increased miniaturisation of electronics systems and the physically constrained battery technology by tapping into the ambient energy available in the surrounding location of an …
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Wearable energy-harvesting micro devices /
… The focus of this dissertation is wearable energy-harvesting mircro devices. They are designed to harvest energy from the surrounding environment to supply power on the go for small electronic devices and sensors. We used low-cost and scalable fabrication methods that make them appropriate …
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THERMOELECTRIC ENERGY HARVESTING IN DISPLAYS
… presented here can be the basis of a prospective energy harvesting scheme via thermoelectrics in future display-based handheld devices.
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Clamp–On Magnetic Energy Harvesting
… and waste problems associated with batteries. Energy harvesting offers an exciting solution to the battery problem, enabling circuits that can power themselves on-site from available ambient energy. Magnetic energy harvesters, configured as current transformers (CTs), extract energy from the …
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Electrochemically driven mechanical energy harvesting
Efficient mechanical energy harvesters enable various wearable devices and may also act as auxiliary energy supply to isolated area. In this thesis, I present a novel class of mechanical energy harvesters based on stress-voltage coupling in electrochemically alloyed electrodes. The device consists …
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Low Frequency Microscale Energy Harvesting
… power requirements for long time of operation, energy harvesters have been developed at the micro scale which can convert vibration energy into electrical energy. Recent studies have shown that for mechanical-to-electrical conversion at the mm-scale (or micro scale), piezoelectric mechanism …
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Multifunctional Piezoelectric Energy Harvesting Concepts
Energy harvesting technology has the ability to create autonomous, self-powered electronic systems that do not rely on battery power for their operation. The term energy harvesting describes the process of converting ambient energy surrounding a system into useful electrical energy through the use …
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Piezoelectric Energy Harvesting for Roadways
Energy harvesting technologies have drawn much attention as an alternative power source of roadway accessories in different scales. Piezoelectric energy harvesting consisting of PZT piezoceramic disks sealed in a protective package is developed in this work to harness the deformation energy of …
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Tiny Piezoelectric Energy-Harvesting CMOS Charger
… industries, and human bodies can save money, energy, and lives. They have to be compact to access difficult places, and their tiny on-board batteries drain quickly to support the functionality. Fortunately, piezoelectric transducer can draw kinect energy from ambient vibrations to constantly …
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Design rectenna for wireless energy harvesting
There is an increasing interest in energy harvesting. The rectenna, which is a combination of a rectifier and an antenna, is a device to harvest wireless energy in the air. This thesis is concentrated on the analysis, design and measurement of compact rectennas for Wi-Fi (RF) wireless energy …
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UHF Energy Harvesting and Power Management
… unfortunately consume a significant amount of energy. This is undesirable for devices which are not directly connected to power. This is because these devices will essentially carry batteries to supply the needed energy for these operations and the batteries will eventually be depleted. This …
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Thermoelectric Energy Harvesting for Sensor Powering
… solved some critical issues in thermoelectric energy harvesting and tried to broaden the thermoelectric application for energy recovery and sensor powering. The scientific innovations of this dissertation were based on the new advance on thermoelectric material, device optimization, fabrication …
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Fluidic Energy Harvesting and Sensing Systems
… significantly. The need to conserve water and energy has led to the development of advanced metering infrastructure (AMI) as a concept to support smart energy and water grid systems that would respond to emergency shut-offs or electric blackouts. Through the Internet of things (IoT) smart …
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Energy Harvesting Applications of Ionic Polymers
… analysis of applications for ionic polymers as energy harvesting devices. The specific need is a self-contained energy harvester to supply renewable power harvested from ambient vibrations to a wireless sensor. Ionic polymers were investigated as mechanical to electrical energy transducers. An …
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Hybrid Structural Composites with Energy Harvesting Capabilities
… materials such as sensing, actuating, energy scavenging, thermal management, and vibration damping. While traditional materials can be utilized for either one of these functions or loadbearing, the hybrid materials are superior as they allow combination of a wide array of …
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Metal Oxide Semiconductors for Solar Energy Harvesting
The correlation between energy consumption and human development illustrates the importance of this societal resource. We will consume more energy in the future. In light of issues with the status quo, such as climate change, long-term supply and security, solar energy is an attractive source. It …
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Wireless transmission with energy harvesting and storage
… for wireless communication systems equipped with energy harvesting devices and finite-capacity batteries. The methods are proposed for the unbounded fading environment. Due to the time-dependent and random behavior of the energy arrival and fading, this dissertation focuses on the stochastic …
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Wind energy harvesting for bridge health monitoring
… and development, and conclusions about energy harvesting to provide long-term power for bridge health monitoring. The methodology gives structure for acquiring information and parameters to create effective energy harvesters. The methodology is used to create a wind energy harvester to …
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INTERFACIAL THERMAL MANIPULATION FOR WATER-ENERGY HARVESTING
Water and energy serve as the bedrock of social stability, economic growth, and human civilization worldwide. Converting solar/waste heat via efficacious heat harvesting technologies promises to offer clean water and energy with minimal environmental impacts. This thesis aims to explore interfacial …
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Energy harvesting-aware design of wireless networks
Recent advances in low-power electronics and energy-harvesting (EH) technologies enable the design of self-sustained devices that collect part, or all, of the needed energy from the environment. Several systems can take advantage of EH, ranging from portable devices to wireless sensor networks …
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