Essays about: "particulate matter"

Showing result 1 - 5 of 54 essays containing the words particulate matter.

  1. 1. Carbonaceous aerosols and trace metal deposition in high-latitude snow : a comparative study in Sweden and Alaska

    University essay from SLU/Dept. of Soil and Environment

    Author : Anika Pinzner; [2019]
    Keywords : PM; carbon particles; pXRF; arctic; subarctic; EC OC; LAHM; PSAP; TOT; ICP-MS; filter; contamination; albedo;

    Abstract : This study investigates the advantages and disadvantages of several destructive and non-destructive analytical methods that can be employed to characterize airborne par-ticulate matter (PM) deposited in seasonal snow. To this end, a comparative study was conducted on PM obtained from snowpack surveys in two Arctic/subarctic regions of Northern Sweden and Interior Alaska, USA. READ MORE

  2. 2. Förutsättningar och möjligheter för växtgestaltning med luftrenande effekt i tunnelbanan

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Sofia Lekander; [2019]
    Keywords : luftrenande växter; tunnelbanemiljö; underjordisk design; luftkvalitet; stationsdesign;

    Abstract : Växtgestaltning är ett holistiskt tillvägagångssätt för att skapa platsbildning och även utnyttja växters och utformningars gentjänster. Uppsatsen tillämpar disciplinen på tunnelbanestationer med huvudsakligt syfte att minska luftföroreningar. Både växtval och stationens utformning visar sig kunna bidra till förbättrad luftkvalitet. READ MORE

  3. 3. Evaluation of Supervised Machine LearningAlgorithms for Detecting Anomalies in Vehicle’s Off-Board Sensor Data

    University essay from Högskolan Dalarna/Mikrodataanalys

    Author : Nor-Ul Wahab; [2018]
    Keywords : Anomaly detection; rule-based; one class support vector machine; k-nearest neighbor; random forest; confusion matrix; accuracy; precision; recall; F1-score;

    Abstract : A diesel particulate filter (DPF) is designed to physically remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Frequently replacing DPF is a waste of resource and waiting for full utilization is risky and very costly, so, what is the optimal time/milage to change DPF? Answering this question is very difficult without knowing when the DPF is changed in a vehicle. READ MORE

  4. 4. Need for Speed – A Systems Perspective on the Environmental Cost of High Top Speeds in German Passenger Cars

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Mudit Chordia; [2018]
    Keywords : Lifecycle assessment; Private cars; Down-engineering;

    Abstract : Automobiles have evolved from meeting transportation needs of their owners a century ago, to addressing transportation desires of their owners today. They now meet the owner’s desire for status though sign values such as speed, safety, environmental consciousness, sexual desire, freedom, masculinity etc. READ MORE

  5. 5. Unveiling stories in Korean smog : a critical discourse analysis of the air pollution policy of Seoul metropolitan government in Korea

    University essay from Lunds universitet/LUCSUS

    Author : Su Yeong Jo; [2018]
    Keywords : particulate matter; air pollution; South Korea; critical discourse analysis; sustainability science; Social Sciences;

    Abstract : Air pollution caused by highly concentrated particulate matter is recognized as the biggest problem in Korean society. Since the problem is directly related to human life and local people's livelihoods, the demand for fundamental policies rather than short-term measures is growing. READ MORE