Sökning: "Apparatus design"

Visar resultat 6 - 10 av 27 avhandlingar innehållade orden Apparatus design.

1. 6. DissolvIt : development and validation of a new in vitro dissolution apparatus for dry powder aerosols

   Författare :Maria Malmlöf; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Today there are no recommended dissolution methods for use in the development of new inhalable drugs. In the absence of such tailored methods, standard dissolution test methods from oral- or skin administration routes are used instead. Such methods are obviously not designed to resemble the lung environment. LÄS MER

3. 7. Mechanical Analysis of Lubrication and Lubricants

   Författare :Jonas Ståhl; Maskinelement; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vakuumteknik; vibrationer; Maskinteknik; hydraulik; akustik; Mechanical engineering; hydraulics; vacuum technology; vibration and acoustic engineering;

   Sammanfattning : This thesis comprises three different topics within the field of tribology. First, design functions for analyses of slider bearings are developed. Second, a lubricant model applied to elastohydrodynamically lubricated (EHL) line contacts considering wall-slip is presented. LÄS MER

4. 8. Becoming Together and Apart : technoemotions and other posthuman entanglements

   Författare :Eva Svedmark; Erik Stolterman; Anna Croon Fors; Pelle Ehn; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Technoemotions; Feminist technoscience; Posthuman theory; Onto-epistemology; Diffraction; Norm-breaking; Digital dirt; Privacy; Sharing; Self-disclosure; Stickiness; computer and systems sciences; data- och systemvetenskap;

   Sammanfattning : Using social media and norm-breaking material as an empirical touchstone this thesis elaborates, investigates and explores the entangled relationships between humans and technology in social media settings. Guided by uncomfortable, emotional and bodily online sharing the thesis gives voice to stories that are seldom heard, by people whose lives are rarely spoken of. LÄS MER

5. 9. Utilization of Low Voltage D-T Neutron Generators in Neutron Physics Studies

   Författare :Somsorn Singkarat; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; D-T neutron generator; double-differential cross-section DDX ; n-1H scattering; directional neutron detector; time-of-flight method; natural iron; scintillation fibers; neutron energy converter;

   Sammanfattning : In a small nuclear laboratory of a developing country a low voltage D-T neutron generator can be a very useful scientific apparatus. Such machines have been used successfully for more than 40 years in teaching and scientific research. LÄS MER

7. 10. CVD on Iron Powder - Using Fluidising Bed Techniques

   Författare :Lars Nilsson; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aluminium oxide; alumina; chemical vapour deposition; eddy current losses; FBR; iron; fluidising bed reactor; powder; SiO2; SMC; TiO2; Al2O3; soft ma etic com sites; CVD;

   Sammanfattning : Today's electrical energy conversion devices, such as motors, transformers, inductors and generators, are based on laminated magnetic cores for reduction of eddy current losses, imposing a two-dimensional magnetic flux distribution. Using a three-dimensional magnetic flux distribution while maintaining low magnetic losses requires new approaches to magnetic core materials. LÄS MER