Essays about: "Low cost air.."

Showing result 1 - 5 of 134 essays containing the words Low cost air...

1. 1. Air quality around preschools in Gothenburg: an evaluation of measurement methods

   University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

   Author : Emma Forsmalm; [2023-06-21]
   Keywords : low-cost sensors; passive diffusion samplers; pick-ups and drop-offs; regulatory measurements;

   Abstract : In this study the air quality around four different preschools, chosen to represent different local traffic environments, was measured and the measurement methods used were evaluated. The aim was to compare the information retrieved using different methods, discuss the possible applications of them and finally see if more specific activities, in this case pick-ups and drop-offs, could be seen in the data retrieved. READ MORE

3. 2. Improving the thermal climate of schools in semi-desert climate : A case study of solutions in La Guajira, Colombia

   University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

   Author : Michael Johansson; [2023]
   Keywords : Solar chimney; Thermal comfort; Classrooms; School; La Guajira; Colombia;

   Abstract : As the climate changes, hot regions like La Guajira's semi-desert will become even hotter. It is projected that the average temperature in this region will increase by 2.4 ℃ over the course of this century, with a 20 % reduction in precipitation. READ MORE

4. 3. Effects of Energy Performance Improving Measures on a 1990's Brick House in Southern Czech Republic : Computer Simulations using IDA-ICE

   University essay from Högskolan i Gävle/Energisystem och byggnadsteknik

   Author : Vaclav Panek; [2023]
   Keywords : Final energy demand; Primary energy demand; Energy performance; Refurbishment; Single-family house; Space heating;

   Abstract : The residential sector was responsible for 25% of the Final Energy Demand (FED) in the European Union in 2015. Countries in Central and Eastern Europe such as the Czech Republic are particularly concerned with ensuring security of supply at the lowest possible cost in recent years. READ MORE

5. 4. Performance Evaluation of LoRa networks for Air-to-Ground Communications

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

   Author : Kiana Khorsandi; Sareh Jalalizad; [2023]
   Keywords : IoT; LPWAN; LoRaWan; UAV; LAP; Bit error rate; Line of sight;

   Abstract : The current focus on the Internet of Things (IoT) has led to the emergence of many network scenarios with unlimited use cases, including smart homes, smart cities, smart agriculture, and more. Unmanned aerial vehicles (UAVs), also known as drones, have become increasingly popular due to their versatility and ability to collect and transmit data through various sensors and cameras. READ MORE

6. 5. Simulation and Testing of a MU-MIMO Beamforming System

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Nazyar Mehdishishavan; Zonghan Wang; [2023]
   Keywords : Multi-User Multiple-Input Multiple-Output MU-MIMO ; Beamforming; Sounding Reference Signal SRS ; Reciprocity-based; Butler matrix; Advanced Antenna System AAS ; Technology and Engineering;

   Abstract : Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology has become increasingly important in the field of wireless communication due to its ability to highly increase the capacity and efficiency of wireless networks [1]. Beamforming, as a technique used in MU-MIMO systems, improves network performance by improving signal quality and reducing interference. READ MORE