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Mechanized logging in deep snow

, : Mechanized logging in deep snow. Ekonomi, Forskningsstiftelsen Skogsarbeten (1): 8

Field studies in Jan. and Feb. 1977 on the effect of severe snow conditions in various parts of Sweden on the performance of feller/bunchers, trimmer/cross-cutters and forwarders showed that feller/bunchers had the greatest problems (stump ht., greater wt. of trees, clogging of mechanisms).


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Sharma, V., K.; Monostori, T.; Hause, B.; Maucher, H.; Goebel, C.; Hornung, E.; Haensch, R.; Bittner, F.; Wasternack, C.; Feussner, I.; Mendel, R., R.; Schulze, J., 2005: Genetic transformation of barley to modify expression of a 13-lipoxygenase. Immature scutella of barley were transformed with cDNA coding for a 13-lipoxygenase of barley (LOX-100) via particle bombardment. Regenerated plants were tested by PAT-assay, Western-analysis and PCR-screening. Immunocytochemical assay of TO plant...

Smolich, J.J.; Weissberg, P.L.; Friberg, P.; Broughton, A.; Korner, P.I., 1991: Left ventricular blood flow during aortic pressure reduction in hypertensive dogs. We measured left ventricular blood flow with radioactive microspheres during aortic pressure reduction in 10 open-chest, anesthetized dogs with left ventricular hypertrophy due to chronic hypertension and in 10 matched normotensive dogs. Heart rat...

Aberg, B., 1992: Void ratio of noncohesive soils and similar materials. A new approach to numerical description of void characteristics of noncohesive soils and similar granular materials is presented. Based upon a simple stochastic model of the void structure and void sizes, theoretical equations are derived to calcu...

Meyer, X.; Chopard, B.; Salamin, N., 2016: Accelerating Bayesian inference for evolutionary biology models. Bayesian inference is widely used nowadays and relies largely on Markov chain Monte Carlo (MCMC) methods. Evolutionary biology has greatly benefited from the developments of MCMC methods, but the design of more complex and realistic models and the...

Marroni, M.; Marchi, N.; Cucullo, L.; Abbott, N.Joan.; Signorelli, K.; Janigro, D., 2003: Vascular and parenchymal mechanisms in multiple drug resistance: a lesson from human epilepsy. Long term treatment with antiepileptic drugs (AEDs) is the standard therapeutic approach to eradicate seizures. However, a small but significant number of patients fail AED treatment. Intrinsic drug resistance may depend on two main and not necess...