| 1. |
- Watanabe, A, et al.
(författare)
-
Gunnar Fant 60 years
- 1979
-
Ingår i: TMH-QPSR. ; 20:2, s. 1-45
-
Tidskriftsartikel (refereegranskat)
|
|
| 2. |
|
|
| 3. |
- Eriksson, Nils-Einar, et al.
(författare)
-
A voltage clamp circuit for measuring rapid current transients in membranes
- 1976
-
Ingår i: Medical and biological engineering. - 0025-696X .- 1741-0444. ; 14:3, s. 334-338
-
Tidskriftsartikel (refereegranskat)abstract
- A voltage clamp circuit is described which permits the measurements of current transients in membranes with time constants of the order of microseconds. The resistance Rs in series with the membrane is compensated for by a current feedback circuit which produces a rapid charging of the membrane capacitance C. It is possible by this arrangement to reduce the charging period to a value considerably shorter than the time constant RsC.
|
|
| 4. |
- Källström, Claes, et al.
(författare)
-
Adaptive Autopilots for Large Tankers
- 1978
-
Ingår i: 7th Triennial World Congress of the IFAC : A Link Between Science and Applications of Automatic Control, Helsinki, Finland, 12-16 June - A Link Between Science and Applications of Automatic Control, Helsinki, Finland, 12-16 June. - 1474-6670. ; 11:1, s. 477-484
-
Konferensbidrag (refereegranskat)abstract
- The adaptive autopilots are based on velocity scheduling, a self-tuning regulator for steady state course keeping, a high gain turning regulator with variable structure, and a Kalman filter. Results from simulations and full-scale experiments on three different tankers are presented. The autopilots are shown to work excellently under different loads, speed and weather conditions.
|
|
| 5. |
|
|
| 6. |
- Källström, Claes G., et al.
(författare)
-
Adaptive Autopilots for Tankers
- 1979
-
Ingår i: Automatica. - : Elsevier BV. - 0005-1098. ; 15:3, s. 241-254
-
Tidskriftsartikel (refereegranskat)abstract
- Two adaptive autopilots for ships are designed, The autopilots are based on velocity scheduling, a self-tuning regulator for steady state course keeping, a high gain turning regulator with variable structure and a Kalman filter.Methods for design of the autopilots are discussed. Results from simulations and full-scale experiments with three different tankers are presented. The autopilots are shown to work excellently under different load, speed, and weather conditions.
|
|
| 7. |
- Nilsson, J. Lars G., et al.
(författare)
-
Fibrin-Stabilizing Factor Inhibitors
- 1972
-
Ingår i: Annals of the New York Academy of Sciences. - : Wiley. - 0077-8923 .- 1749-6632. ; 202:DEC8, s. 286-296
-
Tidskriftsartikel (refereegranskat)
|
|
| 8. |
|
|
| 9. |
- Persson, A E, et al.
(författare)
-
The hydraulic conductivity of the rat proximal tubular wall determined with colloidal solutions
- 1975
-
Ingår i: Pflügers Archiv. - 0031-6768 .- 1432-2013. ; 360:1, s. 25-44
-
Tidskriftsartikel (refereegranskat)abstract
- The hydraulic conductivity of the rat proximal tubular wall was determined using colloidal solutions perfused in short (50--200 mum) (SMP) or long (90--200 mum) (LMP) proximal tubular segments. In SMP human serum albumin (HSA) or polyvinylpyrrolidone (PVP) was added to raffinose solutions. A Lp of 0.019 nl-min-1-mm-1-mm Hg-1 was found when high colloid concentrations were used while values of 0.055--0.092 were found when low colloid concentrations were used. In other experiments, the Lp was determined by perfusing short tubular segments with pure raffinose solutions. A value of 0.015 nl-min-1-mm-1-mm Hg-1 was found. This is twice the value found when raffinose solutions were perfused through long tubular segments and it is concluded that the short microperfusion technique overestimates Lp with a factor of two. When microperfusions of long tubular segments were conducted, PVP was added to an equilibrium solution consisting of NaCl (110 mM) and raffinose (80 mM). Lp was found to be 0.018--0.021 when high colloid concentrations were used, while a value of 0.029 was found when a low colloid concentration was used. As found in both SMP and LMP a decrease in Lp's with increasing colloid concentrations indicates that a significant influence of radial concentration differences is highly probable. It is therefore suggested that the highest Lp derived when using the lowest colloid concentrations represents the best estimate. With this Lp value (0.03--0.05 nl-min-1-mm-1-mm Hg-1) and the existing transtubular hydrostatic and oncotic pressure difference it can be calculated that these passive forces might constitute the driving force for 1/3 of the fluid reabsorbed in the proximal tubule.
|
|
| 10. |
|
|
