Sökning: "Fractional factorial design"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Fractional factorial design.

  1. 1. Development of an analytical method for the screening of meaty flavors in commercial foodstuff by SPME-GC/O-MS

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Ioannis Protopappas; [2021]
    Nyckelord :Gass Chromatography; Mass spectrometry; Meaty flavors; Aromas; Solid pahse microextraction; Mallaird; Lipid degradation; Food technology; Agriculture and Food Sciences;

    Sammanfattning : The aim of the project was to develop a methodology for the chromatographic analysis able to identify the key odorants in meaty food products. The approach was based on the analysis of an already in market product and the theoretical background of the meaty flavors sensorially. LÄS MER

  3. 2. Minimering av porositet vid vakuumassisterad kallkammarpressgjutning av Al-Si : En fallstudie enligt DMAIC på Husqvarna Group

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Författare :Oscar Blombäck; Marcus Dahlén; [2021]
    Nyckelord :porosity; high pressure die-casting; vacuum; design of experiments; simulation; Al-Si; porositet; pressgjutning; vakuum; försöksplanering; simulering; Al-Si;

    Sammanfattning : Pressgjutna Al-Si komponenter förekommer mer och mer i förbränningsmotorer med syfte att reducera vikt och förbättra hållbarhet. Ett problem vid pressgjutning, en process kännetecknad av kostnadseffektivitet vid massproduktion, är porositetsbildning vilket kan resultera i läckage, strukturell svaghet och försämrad hållbarhet och livslängd för tillverkade komponenter. LÄS MER

  4. 3. Structural optimization of electronic packages using DOE

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Robin Johansson; [2020]
    Nyckelord :Design of experiments; DOE; Structural optimization; Electronic packages; DOE; Försöksplanering; Strukturoptimering;

    Sammanfattning : The reliability of a mechanical system containing electronic packages is highly affectedby the environment the system is stationed in. The difference and fluctuationsbetween the ambient temperature and the operating temperature of the electronicpackage cause accumulation of inelastic strains in the package components thusdecreasing the service life. LÄS MER

  5. 4. Development of a GC Method for the Quantification of Short Chain Carboxylic Acids in Aqueous Solution

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Anton Åkervall; [2020]
    Nyckelord :DAI-GC-FID; Direct Aqueous Injection; Gas Chromatography; Flame Ionization Detector; SCFA; Short Chain Fatty Acids; Formic Acid; Acetic Acid; Lactic Acid; EGR; Exhaust Gas Recirculation; CAC; Charged Air Cooler; FFD; Fractional Factorial Design;

    Sammanfattning : Petroleum powered vehicles emit volatile organic compounds (VOCs) through combustion that contributes to the pollution of the environment. A technique in the 1970s was developed to decrease these emissions, especially for nitrogen oxides (NOx) and sulphuric oxides (SOx) which is called exhaust gas recirculation (EGR). LÄS MER

  7. 5. Investigation of support structures of a polymer powder bed fusion process by use of Design of Experiment (DoE)

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Julius Westbeld; [2018]
    Nyckelord :3D-Printing; Additive Manufacturing; ANOVA; AM; Design of Experiments; DoE; Support Structures;

    Sammanfattning : In this thesis, support structures of a polymer powder based process called XXXXXXXX™ are examined. These structures are crucial for most additive manufacturing processes. The effects of several factors on five industrially important characteristics of support structures are examined by use of the Design of Experiment (DoE) method. LÄS MER