Sökning: "air permeability"
Visar resultat 1 - 5 av 34 uppsatser innehållade orden air permeability.
1. Effect of mixing time and mixing rate on the evolution of powderproperties for binary adhesive mixtures
Master-uppsats, Uppsala universitet/Institutionen för farmaceutisk biovetenskapSammanfattning : Dry powder inhalers (DPIs) are often used to deliver drugs to the lungs when treating respiratory diseases. Inhalation powders are often formulated as adhesive mixtures which is the main formulation type used for dry inhalation powders of pharmaceuticals. LÄS MER
2. Developing a Test Method to Evaluate the Blackout Effect of Uncoated Curtains at Varying Angles
Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomiSammanfattning : This study aimed to explore the integration of varying angles in small-scale measurements and assess the light transmission performance of uncoated curtains. A total of four curtains were evaluated: blackout curtain samples 1 and 2 had a weft satin structure, while daytime curtain samples 3 and 4 consisted of a twill structure. LÄS MER
3. Digital Valve-Jet Printing of Chitosan Ink on Cotton Fabric for Antibacterial and Comfort Properties
Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomiSammanfattning : Throughout history, the spread of microorganisms has caused much damage including infectious diseases and deaths. Ever since humans realized the impact of bacteria especially on population health many efforts have been done to combat the spread of pathogens. LÄS MER
4. 3D Knit fabrics : optimizing spacer knit fabrics for comfort and breathability in infant products
Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomiSammanfattning : In this study we looked into an existing textile baby stroller seat and investigated whether there can be any advantage in changing the material to a spacer fabric from perspectives such as functionality, comfort, and sustainability. The subject of 3D knitting, and advanced knitting is being researched more and more because of its versatility in producing and changing parameters of knitted high quality products, but there is a lack of studies done on comfort for children when it comes to knitted spacer fabrics and not many studies have been done on spacer fabrics used for baby seats in strollers or other types of seats for children. LÄS MER
5. Mekanisk nötning och UV-ljus påverkan på skaltygers funktionalitet
Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Institutionen för ingenjörsvetenskap, matematik och ämnesdidaktik (2023-)Sammanfattning : Skaljackor är ett praktiskt plagg för att reglera komforten för användaren. Detta gör de genom att skaltyger kan hålla vind och väta ute samtidigt som de är genomsläppliga för vattenånga. LÄS MER