Sökning: "HGV"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet HGV.

1. 1. Improving emergency braking performance of heavy vehicles

   Författare :Leon Henderson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heavy vehicles; pneumatic brake actuator; ABS; pneumatic braking system; Slip control braking; HGV; vehicle testing; tyre dynamics;

   Sammanfattning : Previous studies by the Cambridge Vehicle Dynamics Consortium (CVDC) have suggested that, by improving the control bandwidth of conventional Heavy Goods Vehicle(HGV) brake actuators and using a ‘slip control’ braking strategy, HGV stopping distances could be reduced by up to 30% over existing systems. The work covered in this thesis looks to: validate the CVDC’s previous braking performance predictions through Hardware-in-the-Loop (HiL) simulation, investigate how in-plane tyre dynamics may influence such a system’s performance, develop and build a next generation high-bandwidth braking system for vehicle implementation and carry out comparative back-to-back vehicle tests between the new system and commercially available HGV ABS. LÄS MER

3. 2. Structural Interaction between Vehicles. An Investigation of Crash Compatibility between Cars and Heavy Goods Vehicles

   Författare :Aleksandra Krusper; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Front Underrun Protection; simulation; Heavy Goods Vehicles; compatibility assessment; FUPD; Front Underrun Protective Device; energy absorption; crash compatibility; HGV; structural interaction; FUP;

   Sammanfattning : While frontal collisions between Heavy Goods Vehicles (HGVs) and passenger cars are rarecompared to car-to-car frontal crashes, they are much more severe. Between 43% and 73% ofall frontal car-to-truck accidents result in fatalities. LÄS MER

4. 3. GB virus C/hepatitis G virus infection: clinical, histological and epidemiological aspects

   Författare :Per Björkman; Enheten för infektionssjukdomar; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; endoscopy; nosocomial; sexual transmission; parenteral transmission; blood donor; ALT; liver disease; hepatitis; GBV-C HGV; HCV; Infections; Infektioner;

   Sammanfattning : GBV-C/HGV is a blood-borne virus related to the hepatitis C virus. We studied GBV-C/HGV infection in different populations, its transmission, and its association with liver disease. GBV-C/HGV viraemia was detected by PCR in 19/576 blood donors. Donors with normal and elevated ALT levels had similar rates of viraemia (1. LÄS MER

5. 4. Epidemiology and clinical importance of GB virus C/hepatitis G virus

   Författare :Robert Halasz; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :GBV-C; HGV; prevalence; transmission; children; fulminant hepatic failure; clinical importance;

   Sammanfattning : GB virus C (GBV-C) or hepatitis G virus (HGV) is a recently discovered enveloped RNA virus belonging to the Flaviviridae family. GBV-C/HGV has been suggested to be a causative agent of non-A-non-E hepatitis. However, several contradictory observations cast doubts that it actually causes hepatitis. LÄS MER

7. 5. Neonatal cholestasis : clinical and aetiological aspects, with special reference to viral infections transmitted from mother to infant

   Författare :Björn Fischler; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :neonatal cholestasis; biliary atresia; progressive familial intrahepatic cholestasis; vertical transmission; CMV; HCV; GBV-C HGV;

   Sammanfattning : Although the list of possible causes for neonatal cholestasis is long, in many cases the aetiology remains unknown. The aim of this thesis was to examine the pathogenetic role of viral infections in the early infantile cholestasis. LÄS MER