Sökning: "X Liu"
Visar resultat 1 - 5 av 999 avhandlingar innehållade orden X Liu.
1. Renewable and Scalable Energy Storage Materials Derived from Quinones in Biomass
Sammanfattning : Currently there is an urgent need to reduce the use of fossil fuels, and efficient sustainable energy harvesters from sun and wind have been developed and are widely used for electricity generation. Storage of electrical energy is accordingly necessary to accommodate the time varying supply of wind and solar electricity. LÄS MER
2. Enable the landing of Internet of Things: a holistic approach
Sammanfattning : Internet of Things (IoT) envisions a world where physical assets are fully connected with the Internet infrastructure to provide digital services. With the advancement of information and communication technologies, IoT applications have experienced a growth in many industries and are anticipated to reshape the landscape of social life and industry production. LÄS MER
3. Dynamics of multiphoton processes in nonlinear optics and x-ray spectroscopy
Sammanfattning : New generations of ultrashort and intense laser pulses as well ashigh power synchrotron radiation sources and x-ray free electronlasers have promoted fast developments in nonlinear optics andx-ray spectroscopy.The new experimental achievements and the appearance of varieties of novelnonlinear phenomena call for further development of theories. LÄS MER
4. Surface modification of III-V nanostructures studied by low-temperature scanning tunneling microscopy
Sammanfattning : In the past decade, driven by the demand for materials with high performance for next-generation semiconductor devices (e.g. LÄS MER
5. Exploration of Non-Aqueous Metal-O2 Batteries via In Operando X-ray Diffraction
Sammanfattning : Non-aqueous metal-air (Li-O2 and Na-O2) batteries have been emerging as one of the most promising high-energy storage systems to meet the requirements for demanding applications due to their high theoretical specific energy. In the present thesis work, advanced characterization techniques are demonstrated for the exploration of metal-O2 batteries. LÄS MER