Sökning: "transfer length"

Visar resultat 1 - 5 av 220 avhandlingar innehållade orden transfer length.

1. 1. Tuning of Energy and Electron Transfer Rates in Donor-Bridge-Acceptor Systems

   Författare :Karin Pettersson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron transfer; electronic coupling; paramagnetic species; superexchange; Donor-bridge-acceptor system; spectroscopy.; porphyrin; sequential electron transfer; Förster energy transfer; energy transfer;

   Sammanfattning : The intramolecular processes of Donor-Bridge-Acceptor (D-B-A) systems have been investigated by spectroscopic methods. The systems consist of porphyrin donors and acceptors linked by oligo-p-phenyleneethynylene bridges. LÄS MER

3. 2. Tendon transfer mechanics and donor muscle properties : implications in surgical correction of upper limb muscle imbalance

   Författare :Eva Pontén; Bertil Romanus; Umeå universitet; []
   Nyckelord :laser diffraction; sarcomere length; tendon transfer; spasticity; muscle morphology; myosin heavy chain; capillary; rabbit; human; cerebral palsy; stroke; handkirurgi; hand surgery;

   Sammanfattning : Tendon transfer surgery is used to improve the hand function of patients with nerve injuries, spinal cord lesions, cerebral palsy (CP), stroke, or muscle injuries. The tendon of a muscle, usually with function opposite that of the lost muscle function, is transferred to the tendon of the deficient muscle. LÄS MER

4. 3. Energy and Electron Transfer in Porphyrin-Based Donor--Bridge--Acceptor Systems

   Författare :Kristine Kilså; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; electron transfer; electronic coupling; donor--bridge--acceptor systems; quantum mechanical calculations; enhanced intersystem crossing; ligand and solvent effects; bridge mediation; energy transfer; porphyrin;

   Sammanfattning : The photophysical properties of supramolecular donor--bridge--acceptor systems have been investigated by spectroscopic and quantum mechanical methods. The systems consist of porphyrin donor and acceptor moieties linked by bridging chromophores of varying excitation energy, and are shown to be geometrically well-defined in terms of length and rotational conformation. LÄS MER

5. 4. Single Phase Convective Heat Transfer with Nanofluids : An Experimental Approach

   Författare :Ehsan Bitaraf Hgahighi; Björn E. Palm; Elena V. Timofeeva; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanofluid; convective heat transfer; thermal conductivity; viscosity; heat transfer coefficient; performance; pumping power; Reynolds number; shelf stability;

   Sammanfattning : Nanofluids (NFs) are engineered colloids of nanoparticles (NPs) dispersed homogenously within base fluids (BFs). Due to the presence of NPs, the thermophysical and transport properties of BFs are subject to change. LÄS MER

7. 5. Writing in deaf and hard-of-hearing children : A bimodal bilingual perspective on their written products and writing processes

   Författare :Moa Gärdenfors; Krister Schönström; Victoria Johansson; Naomi Caselli; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; DHH; CODA; cochlear implants; hearing aids; sign language; bilingualism; literacy; writing development; keystroke logging; writing fluency; revision; linguistic complexity; lexical density; lexical diversity; spelling; cross-linguistic influence; transfer; Linguistics; lingvistik;

   Sammanfattning : This thesis presents unique insights into the written products and writing processes of Swedish deaf and hard-of-hearing (DHH) children using a keystroke logging tool. Writing processes encompass the activities (such as planning or revision) that writers engage in during the production of the written text. LÄS MER