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Showing result 1 - 5 of 8 essays matching the above criteria.

1. 1. Integrating novel circular economy technologies in complex trans-sector value chains : Case study of insect larvae conversion technology within waste and feed value chains

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Audinisa Fadhila; [2020]
   Keywords : Organic waste; circular economy; circular value chain; sustainable transition; transition studies; Black Soldier Fly; sustainable animal feed;

   Abstract : Even as the current linear value chains (LVC) of organic waste and animal feed hold the potential to become circular, these practices continue to pose major environmental risks such as deforestation and overfishing. Therefore, a novel circular value chain (CVC) is proposed, connecting the organic waste stream with animal feed production by the use of insect-based organic waste conversion technology. READ MORE

3. 2. Silicon surface passivation via ultra-thin SiO2, TiO2, and Al2O3 layers

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Anton Ek; [2019]
   Keywords : surface passivation; ALD; silicon; solar cell; SiO2; Al2O3; TiO2; stacks; characterization; optimization; RSM; temperature;

   Abstract : Energy traps at the silicon surface originating from discontinuities in the lattice is detrimental to the performance of solar cells. Acting as recombination centers, they offer a location where the charge carriers may easily return to their original energy band after excitation. READ MORE

4. 3. Avoiding edge colorings of hypercubes

   University essay from Linköpings universitet/Matematik och tillämpad matematik

   Author : Per Johansson; [2019]
   Keywords : Graph Theory; Hypercubes; Avoiding edge colorings;

   Abstract : The hypercube Qn is the graph whose vertices are the ordered n-tuples of zeros and ones, where two vertices are adjacent iff they differ in exactly one coordinate. A partial edge coloring f of a graph G is a mapping from a subset of edges of G to a set of colors; it is called proper if no pair of adjacent edges share the same color. READ MORE

5. 4. Probability of Positive Identification with an IFF E-scan System

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Tora Lutnaes; [2018]
   Keywords : ;

   Abstract : Both military and civil aircrafts depend on a built-in identification system called SSR on a daily basis. IFF is the military adaption of the system for use by fighter jets in order to separate friendly aircrafts from foes but also to coexist with commercial aircrafts. READ MORE

6. 5. Analysis of angular accuracy in the IFF Monopulse receiver

   University essay from Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska fakulteten

   Author : Filip Bengtsson; David Sköld; [2018]
   Keywords : IFF; Monopulse; Receiver; Radar; SSR; Angular; Accuracy;

   Abstract : This master thesis investigates how certain components error margin may affect the accuracy of a IFF monopulse receiver. The IFF monopulse receiver measures the angle of arrival of the incident signal by comparing sum and difference signals created in the receiver. READ MORE