Essays about: "microwave radiation"

Showing result 1 - 5 of 36 essays containing the words microwave radiation.

1. 1. Urea-Based Treatments of Unretted Hemp Fibres from Residual Streams

   University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

   Author : Danilo Esteban Ortiz Sarasty; [2023]
   Keywords : Finola waste; stalks; unretted hemp fibres; degumming; cold urea alkali; microwave-urea;

   Abstract : More sustainable and efficient degumming methods are required to extract finner bast fibres, especially from agro-industrial waste streams such as stalks from hemp for food purposes. For this reason, in this study, two urea-based treatments were evaluated as degumming alternatives for unretted hemp fibres from residual streams, one at cold and alkaline conditions (CUA) and the other in combination with microwave radiation (MWU). READ MORE

3. 2. Modelling and Optimisation of Relativistic Magnetron with Transparent Cathode : Applications for High-Power Microwaves

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : David Sawert; [2023]
   Keywords : Relativistic Magnetron; RM; High-Power Microwaves; HPM; Particle-in-Cell; PIC; MAGIC3D; TE11;

   Abstract : This thesis aimed to investigate the relativistic magnetron (RM), which is a high-power microwave (HPM) source. Since the RM can generate high-intensity microwave radiation, it can be used as a pulsed electromagnetic weapon to target electronic systems in different objects, such as drones, missiles, or vehicles. READ MORE

4. 3. Simulation of Microwave Heating of Healthy and Cancerous Human Tissue With Gold Nanoparticles

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Hampus Carlens; Mika Söderström; [2022]
   Keywords : Gold nanoparticle GNP ; Electrophoretic resonance; Dispersive permittivity; Cancer treatment; Waveguide; Radiotherapy; Graded material.;

   Abstract : With a great need for new and better cancer treatments, microwaves and gold nanoparticles (GNPs) are increasingly being suggested to be used in radiotherapy. In thisreport, the authors present an investigation of how human tissue,both malignant and healthy, behaves under microwave radiation. READ MORE

5. 4. Dielectric Characterization of Bone Using Ultra Wide Band Microwave Transmission Probe

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Abhinav Singh; [2022]
   Keywords : ;

   Abstract : The body has the capability of reabsorbing and generating new bone throughout life. Bone remains healthy as long it maintains the equal amount of old and new bones. Bone loss is occurred when the old bone absorbed is more and new bone created is less. Osteoporosis is a very common bone disease among men and women in their later years. READ MORE

6. 5. Design of a Leaky-wave Antenna Based on Goubau Line for Imaging Applications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Roger Bock Filella; [2022]
   Keywords : leaky-wave antenna; radar systems; Goubau Line; glide symmetry; dispersion diagram; endfire; broadside;

   Abstract : The project main purpose is to design a prototypeof a leaky-wave antenna (LWA) which will serve as a basisto future manufacturing of a more advanced product withpotential use for an imaging radar system. The antenna consistsof Goubau line corrugations with rectangular radiation patches. READ MORE