SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "swepub ;srt2:(1990-1994);conttype:(refereed)"

Sökning: swepub > (1990-1994) > Refereegranskat

  • Resultat 1-10 av 14309
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Andersson, Sören, et al. (författare)
  • An adaptive array for mobile communication systems
  • 1991
  • Ingår i: IEEE Transactions on Vehicular Technology. - Toronto, Ont, Can : Institute of Electrical and Electronics Engineers (IEEE). - 0018-9545 .- 1939-9359. ; 40:1 pt 2, s. 230-236, s. 3289-3292
  • Tidskriftsartikel (refereegranskat)abstract
    • The use of adaptive antenna techniques to increase the channel capacity is discussed. Directional sensitivity is obtained by using an antenna array at the base station, possibly both in receiving and transmitting modes. A scheme for separating several signals at the same frequency is proposed. The method is based on high-resolution direction-finding followed by optimal combination of the antenna outputs. Comparison with a method based on reference signals is made. Computer simulations are carried out to test the applicability of the technique to scattering scenarios that typically arise in urban areas. The proposed scheme is found to have great potential in rejecting cochannel interference, albeit at the expense of high computational requirements.
  •  
2.
  • Doherty, Patrick, 1957-, et al. (författare)
  • Fuzzy if-then-unless rules and their implementation.
  • 1992
  • Ingår i: International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems, IPMU92,1992. - Linköping, Sweden : Springer.
  • Konferensbidrag (refereegranskat)
  •  
3.
  •  
4.
  •  
5.
  • Wahlberg, Bo, et al. (författare)
  • Robust Signal Parameter Estimation in the Presence of Array Perturbations
  • 1991
  • Ingår i: Proc. of 1991 International Conference on Acoustics, Speech, and Signal Processing, 1991. ICASSP-91.. - Linköping : IEEE. ; , s. 3277-3280
  • Konferensbidrag (refereegranskat)abstract
    • Signal parameter estimators which are less sensitive to perturbations in the array manifold are presented. A parametrized stochastic model for the array uncertainties is introduced. The unknown array parameters can include the individual gain and phase responses of the sensors as well as their positions. Based on this model, a maximum a posteriori (MAP) estimator is formulated. This results in a fairly complex optimization problem which is computationally expensive. The MAP estimator is simplified by exploiting properties of the weighted subspace fitting method. An approximate method that further reduces the complexity is also presented, assuming smallarray perturbations. A compact expression for the MAP Cramer-Rao bound (CRB) on the signal and arrayparameter estimates is derived. A simulation study indicates that the proposed robust estimation procedures achieve the MAP-CRB even for moderate sample sizes.
  •  
6.
  • Ljung, Lennart, 1946-, et al. (författare)
  • Adaptive System Performance in the Frequency Domain
  • 1992
  • Ingår i: Adaptive systems in control and signal processing 1992. - Linköping : Linköping University. - 9780080425962 ; , s. 33-40
  • Konferensbidrag (refereegranskat)
  •  
7.
  • Andersen, Poul, et al. (författare)
  • Tackling Dynamics in Business Networks
  • 1994
  • Ingår i: 10th Annual IMP Conference, Groningen. - Groningen : University of Groningen, Faculty of Management & Organization.
  • Konferensbidrag (refereegranskat)
  •  
8.
  • Andersson, Torbjörn, et al. (författare)
  • Estimation of Residence Time in Continuous Flow Systems with Dynamics
  • 1994
  • Ingår i: Proceedings of the 10th IFAC Symposium on System Identification. - Linköping : Linköping University. ; , s. 401-406
  • Konferensbidrag (refereegranskat)abstract
    • A method for estimation of residence time in continuous flow systems with varying dynamics is presented. By resampling, i.e., choosing time instants different from the given sampling instants, and interpolation between measured data points, we obtain a continuous flow system with constant residence time expressed in the new resampled time vector. We assume the flow patterns in the systems are invariant. The new data set is then used for identification of parameters in a chosen model structure. From the identified model, the residence time is readily calculated and a procedure for that is briefly described. The presented method is readily extended to enable use in recursive identification. In that case, however, as an improvement of tracking ability of an ordinary recursive routine.
  •  
9.
  • Arvidsson, Ann-Kristin, et al. (författare)
  • Tyr-716 in the platelet-derived growth factor beta-receptor kinase insertis involved in GRB2 binding and Ras activation
  • 1994
  • Ingår i: Molecular and Cellular Biology. - : American Society for Microbiology. - 0270-7306 .- 1098-5549. ; 14:10, s. 6715-6726
  • Tidskriftsartikel (refereegranskat)abstract
    • Ligand stimulation of the platelet-derived growth factor (PDGF) beta-receptor leads to activation of its intrinsic tyrosine kinase and autophosphorylation of the intracellular part of the receptor. The autophosphorylated tyrosine residues mediate interactions with downstream signal transduction molecules and thereby initiate different signalling pathways. A pathway leading to activation of the GTP-binding protein Ras involves the adaptor molecule GRB2. Here we show that Tyr-716, a novel autophosphorylation site in the PDGF beta-receptor kinase insert, mediates direct binding of GRB2 in vitro and in vivo. In a panel of mutant PDGF beta-receptors, in which Tyr-716 and the previously known autophosphorylation sites were individually mutated, only PDGFR beta Y716F failed to bind GRB2. Furthermore, a synthetic phosphorylated peptide containing Tyr-716 bound GRB2, and this peptide specifically interrupted the interaction between GRB2 and the wild-type receptor. In addition, the Y716(P) peptide significantly decreased the amount of GTP bound to Ras in response to PDGF in permeabilized fibroblasts as well as in porcine aortic endothelial cells expressing transfected PDGF beta-receptors. The mutant PDGFR beta Y716F still mediated activation of mitogen-activated protein kinases and an increased DNA synthesis in response to PDGF, indicating that multiple signal transduction pathways transduce mitogenic signals from the activated PDGF beta-receptor.
  •  
10.
  • Björklund, Mats, et al. (författare)
  • Mate Guarding In The Great Tit - A Reply
  • 1994
  • Ingår i: Animal Behaviour. - : Elsevier BV. - 0003-3472 .- 1095-8282. ; 47:5, s. 1230-1231
  • Tidskriftsartikel (refereegranskat)
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 14309
Typ av publikation
tidskriftsartikel (10135)
konferensbidrag (2673)
bokkapitel (647)
rapport (500)
bok (134)
forskningsöversikt (87)
visa fler...
samlingsverk (redaktörskap) (71)
recension (33)
proceedings (redaktörskap) (26)
konstnärligt arbete (2)
annan publikation (2)
visa färre...
Typ av innehåll
Författare/redaktör
Turner, Anthony, 195 ... (85)
Svanberg, Sune (83)
Herlitz, Johan (76)
Åström, Karl Johan (73)
Nordén, Bengt, 1945 (66)
Gerdin, Bengt, 1947- (60)
visa fler...
Forssberg, Eric (57)
Berg, Sören (52)
Johnsson, Lennart (48)
Nyholm, R. (48)
Adlercreutz, Patrick (47)
Knutsson, Hans (46)
Wigertz, Ove, 1934- (46)
Ljung, Lennart, 1946 ... (45)
Johansson, Rolf (44)
Mattiasson, Bo (41)
Agardh, Carl-David (40)
Shahnavaz, Houshang (40)
Abrahamson, Magnus (39)
Baldetorp, Bo (38)
Karlsson, Ulf O. (38)
Cederwall, Bo (38)
Maguire Jr., Gerald ... (37)
Bååth, L.B. 1948- (37)
Wahlberg, Bo, 1959- (36)
Danielsson-Tham, Mar ... (36)
Andersson-Engels, St ... (35)
Laurell, Fredrik (35)
Rönnberg, Jerker, 19 ... (35)
Nordblad, P (35)
Owman, Christer (35)
Andersen, J. N. (34)
Fritzson, Peter (34)
Leckner, Bo G, 1936 (33)
Larsson, Gerry (32)
Steen, Stig (32)
Öberg, Kjell (32)
Ny, Tor (32)
Fernö, Mårten (31)
Johansson, Christer (31)
Syvänen, Ann-Christi ... (31)
Nilsson, B (31)
Sundqvist, Bertil (31)
Berntsson, Thore, 19 ... (30)
Viberg, Mats (30)
Nilsson, L. (28)
Eriksson, Barbro (28)
Kärnefelt, Ingvar (28)
Möller, Claes, 1950- (28)
Höglund, Erik (28)
visa färre...
Lärosäte
Lunds universitet (3168)
Uppsala universitet (2256)
Luleå tekniska universitet (1390)
Kungliga Tekniska Högskolan (1129)
Göteborgs universitet (1002)
Linköpings universitet (922)
visa fler...
Chalmers tekniska högskola (859)
RISE (816)
Umeå universitet (672)
Linnéuniversitetet (409)
Karlstads universitet (387)
Jönköping University (259)
Örebro universitet (243)
Stockholms universitet (229)
Mittuniversitetet (204)
Högskolan i Borås (107)
Högskolan Kristianstad (83)
Blekinge Tekniska Högskola (81)
Högskolan i Halmstad (72)
Södertörns högskola (63)
Högskolan Dalarna (61)
Högskolan i Gävle (51)
Mälardalens universitet (43)
Försvarshögskolan (38)
Handelshögskolan i Stockholm (30)
Gymnastik- och idrottshögskolan (29)
Naturhistoriska riksmuseet (26)
Marie Cederschiöld högskola (22)
Högskolan Väst (21)
Malmö universitet (15)
Högskolan i Skövde (13)
VTI - Statens väg- och transportforskningsinstitut (8)
Nordiska Afrikainstitutet (3)
Röda Korsets Högskola (3)
Sophiahemmet Högskola (2)
Enskilda Högskolan Stockholm (2)
Riksantikvarieämbetet (1)
visa färre...
Språk
Engelska (12773)
Svenska (1263)
Tyska (71)
Franska (50)
Danska (26)
Odefinierat språk (25)
visa fler...
Ryska (23)
Spanska (14)
Italienska (12)
Japanska (11)
Norska (9)
Finska (9)
Nederländska (6)
Kinesiska (5)
Arabiska (4)
Ungerska (4)
Bulgariska (2)
Rumänska (1)
Slovakiska (1)
visa färre...
Forskningsämne (UKÄ/SCB)
Naturvetenskap (3189)
Teknik (2897)
Medicin och hälsovetenskap (2526)
Samhällsvetenskap (1089)
Humaniora (690)
Lantbruksvetenskap (272)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy