Sökning: "frame orientations"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden frame orientations.

1. 1. Development of rotation electron diffraction as a fully automated and accurate method for structure determination

   Författare :Bin Wang; Xiaodong Zou; Andy Stewart; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron crystallography; structure determination; structure refinement; metal-organic framework; guest molecules; software development; automation; hierarchical cluster analyses; high-throughput data processing; data merging; frame orientations; least-squares optimization; data processing; TEM goniometer; Inorganic Chemistry; oorganisk kemi;

   Sammanfattning : Over the past decade, electron diffraction methods have aroused more and more interest for micro-crystal structure determination. Compared to traditional X-ray diffraction, electron diffraction breaks the size limitation of the crystals studied, but at the same time it also suffers from much stronger dynamical effects. LÄS MER

3. 2. Mechanical connections using birch plywood as gusset plates in timber structures

   Författare :Yue Wang; Magnus Wålinder; Roberto Crocetti; Hans Joachim Blaß; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Birch plywood; mechanical fasteners; load-to-face grain angle; gusset plates; truss structures; portal frame structures; load spread angle.; Building Materials; Byggnadsmaterial;

   Sammanfattning : The use of steel gusset plates in connections for timber structures increases the environmental impact of the structure. Wood-based connections could, in this case, be ideal substitutes providing lower environmental impact as well as both better workability and mountability. Birch (Betula spp. LÄS MER

4. 3. NMR studies of Carbohydrate Structure and Dynamics in Solution

   Författare :Torgny Rundlöf; Thomas Peters; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic Chemistry; organisk kemi;

   Sammanfattning : Methods for studies of the structures of carbohydrates in solution and their dynamics are presented. Approaches employing nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry (MS), force-field computer simulations and chemical methods are described. LÄS MER

5. 4. Kollektiv identitetsformering i sociala medier : Interaktion i tre Facebookgrupper

   Författare :Ali Mohamed; Matilda Wiklund; Gustav Lymer; Annika Lantz-Andersson; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Collective identity formation; education; Facebook groups; interaction; netnography; social media; social practice; pedagogy; pedagogik; Education;

   Sammanfattning : Social media, not least Facebook, has in recent decades emerged as an important arena for interaction and identity formation. The overall aim of the thesis is to contribute with knowledge about how collective identity formation takes shape within groups in social media where social issues are discussed. LÄS MER

7. 5. A Representation Scheme for Description and Reconstruction of Object Configurations Based on Qualitative Relations

   Författare :Heike Joe Steinhauer; Erik Sandewall; Alexander Klippel; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Qualitative Reasoning; Spatial Reasoning; Cognitive Modeling; Human-Machine Interaction; Coarse Reasoning; Artificial Intelligence; Computer science; Datavetenskap;

   Sammanfattning : One reason Qualitative Spatial Reasoning (QSR) is becoming increasingly important to Artificial Intelligence (AI) is the need for a smooth ‘human-like’ communication between autonomous agents and people. The selected, yet general, task motivating the work presented here is the scenario of an object configuration that has to be described by an observer on the ground using only relational object positions. LÄS MER