Sökning: "Mei Fang"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Mei Fang.

1. 1. 3D Magnetic Photonic Crystals : Synthesis and Characterization

   Författare :Mei Fang; K.Venkat Rao; Lyubov Belova; Rajeev Ahuja; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; magnetic photonic crystals; photonic band gaps; Fe3O4 nanoparticles; silica; Optical physics; Optisk fysik; Materials science; Teknisk materialvetenskap;

   Sammanfattning : This thesis presents the synthesis methods and the characterizations of magnetic Fe3O4 nanoparticles, silica spheres with Fe3O4 nanoparticles embedded, and three dimensional magnetic photonic crystals (MPCs) prepared from the spheres. The structure, material composition, magnetic and optical properties, photonic band gaps (PBGs), as well as how these properties depend on the concentration of the magnetic nanoparticles, are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), superconducting quantum interference device (SQUID), Faraday rotation (FR) and optical spectrophotometers. LÄS MER

3. 2. Properties of Multifunctional Oxide Thin Films Despostied by Ink-jet Printing

   Författare :Mei Fang; Lyubov Belova; K. Venkat Rao; Gillian Gehring; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ink-jet printing; oixde; thin film; ink; suspension; dye sensitized solar cell; functional properties; magnetism; diluted magnetic semiconductors;

   Sammanfattning : Ink-jet printing offers an ideal answer to the emerging trends and demands of depositing at ambient temperatures picoliter droplets of oxide solutions into functional thin films and device components with a high degree of pixel precision. It is a direct single-step mask-free patterning technique that enables multi-layer and 3D patterning. LÄS MER

4. 3. Adenovirus species B interactions with CD46

   Författare :Dan Gustafsson; Ya-Fang Mei; Urs Greber; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Adenovirus 11; CD46; mikrobiologi; Microbiology;

   Sammanfattning : Adenoviruses (Ad) are double-stranded (ds) DNA, non-enveloped viruses. There are seven species (A-G) of human Ads with 52 knownserotypes to date. Human Ads cause a broad range of pathologies, ranging from upper respiratory tract infections to persistent urinary tract infections. LÄS MER

5. 4. Adenovirus species B: receptors, tropism and hematopoietic cells

   Författare :Anna Segerman; Göran Wadell; Ya-Fang Mei; Urs Greber; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; Adenovirus; Species B; hematopoietic; Mikrobiologi; Microbiology; immunology; infectious diseases; Mikrobiologi; immunologi; infektionssjukdomar; medicinsk virologi; Medical Virology;

   Sammanfattning : At present, the human adenoviruses (Ads) comprise 51 members, which have been classified into six species (A to F). In general, adenovirus (Ad) tissue tropism or disease patterns vary according to species, although adenoviruses from different species can sometimes cause the same symptoms. LÄS MER

7. 5. Replication-competent adenovirus 11p vector as a new oncolytic agent

   Författare :Jim Silver; Ya-Fang Mei; Gunnel Halldén; Umeå universitet; []
   Nyckelord :Virologi; Adenovirus; Vector; mikrobiologi; Microbiology;

   Sammanfattning : Human adenoviruses (Ads) as vectors have been studied for cancer gene therapy for several decades due to their ability to shut down host cell replication and lyse tumour cells. Ad5 of species C is commonly used as a replication-defective or a replication-competent vector. LÄS MER