Sökning: "R 128"

Hittade 5 avhandlingar innehållade orden R 128.

  1. 1. Corrosion of current cullector materials in the molten carbonate fuel cell

    Författare :Baohua Zhu; KTH; []
    Nyckelord :molten carbonate fuel cell MCHC ; corrosion; current collecotr; contact corrosion reistance;

    Sammanfattning : The corrosion of current collector materials in MoltenCarbonate Fuel Cells (MCFC) is investigated. The essential aimsof this investigation were to study the corrosion behaviour ofdifferent materials, in varying cathode and anode MCFCenvironments, and to study the contact corrosion resistancesbetween the MCFC current collector and electrodes. LÄS MER

  3. 2. Evaluation of Live Loudness Meters

    Författare :Jon Allan; Jan Berg; Scott Norcross; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; loudness; loudness metering; live loudness meter; loudness meter; audio level alignment; R 128; hörstyrka; mätning av hörstyrka; loudnessmätare; hörstyrkemätare; nivåjustering; R 128; upplevd ljudnivå; Audio Technology; Ljudteknik;

    Sammanfattning : Discrepancies in loudness (i.e. sensation of audio intensity) has been of great concern within the broadcast community. For television broadcast, disparities in audio levels have been rated the number one cause to annoyance by the audience. LÄS MER

  4. 3. Natural products from nonracemie building blocks : synthesis of pine sawfly pheromones

    Författare :Michael Larsson; Torbjörn Norin; Gunnar Westman; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic chemistry; Total synthesis; diastereoselective addition; dimethylzinc; Lewis acid; alkyllithium; Organisk kemi; Organic chemistry; Organisk kemi;

    Sammanfattning : This thesis describes a number of synthetic approaches for obtaining chiral, enantiomerically pure natural products, in particular some semiochemicals. This has been accomplished by using various strategies; by starting from compounds from the chiral pool, by using chiral auxiliaries, via enzymatic resolutions or by chemical asymmetric synthesis. LÄS MER

  5. 4. Assessment of lumbar radicular pain. Validity and predictive value of clinical tests

    Författare :Harald Ekedahl; Lund Ortopedi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Low back pain; validity; predictive value of test; radicular pain; transforaminal injection;

    Sammanfattning : Radicular pain is in the majority of cases caused by a disc herniation with a coexisting inflammation. It is characterized by positive neural tension tests, such as the Slump test, and by decreased range of motion (ROM) in the straight leg raising test (SLR) and lumbar flexion (Fingertip-to-floor test[FTF]). LÄS MER

  7. 5. Modulation of experimental T cell autoimmunity in the nervous system with emphasis on nasal tolerance

    Författare :Xue-Feng Bai; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Experimental autoimmune neuritis (EAN) and encephalomyelitis (EAE) are animal models of Guillian-Barre syndrome (GBS) and multiple sclerosis (MS), representing human demyelinating diseases of the peripheral nervous system (PNS) and central nervous system (CNS), respectively. CD4+ T cells recognizing myelin antigens and producing cytokines play central roles in the pathogenesis of both EAN and EAE and perhaps of GBS and MS. LÄS MER