With the increase of importance of bioenergy, the whole tree harvesting system was reconsidered. As a simple way of a whole tree harvesting system, this study analyzed two winching procedures in terms of productivity and influence from terrain conditions. One of the winching procedures was observed on flat terrain, where the felled trees were scattered and then, one-by-one, attached to the winc...

In this paper, first the limitations of the ray-based method and the one-way wave-field extrapolation migration (WEM) in imaging steeply dipping structures are discussed by some examples. Then a new method of the reverse time migration (RTM), used in imaging such complex structures is presented. The proposed method uses a new wave-field extrapolator called the Leapfrog-Rapid Expansion Method (L...

[1] The mechanisms that control climate-dependent rockfall from permafrost mountain slopes are currently poorly understood. In this study, we present the results of an extensive rock slope monitoring campaign at the Matterhorn (Switzerland) with a wireless sensor network. A negative dependency of cleft expansion relative to temperature was observed at all clefts for the dominant part of the yea...

technology foresight is a methodology for making the complexity and advanced nature of new technologies of future more comprehensible and transparent. the objective of this survey is to analyze and interpret weakness and strength of the current situation of iran organizations regarding utilization of foresight activities of developing new technologies and its influence over the country by usin...

We have found a peculiar radio source J06587−5558 in the field of one of the hottest known clusters of galaxies 1E0657−56. It is slightly extended, highly polarised (54% at 8.8 GHz) and has a very steep spectrum, with α ∼ −1 at 1.3 GHz, steepening to ∼ −1.5 at 8.8 GHz (S ∝ ν). No extragalactic sources are known with such high integrated polarisation, and sources with spectra as steep as this ar...

Economic imbalances and social disparities are a common feature of developmenteconomies, particularly those which have historical antecedents of colonial rule. The study ofregional imbalances is given focus especially to Southeast Asian countries owing to its renewedimportance in the global order. Post independent India had to tackle with several problems at theoutset, regional imbalance and ec...

BACKGROUND To compare the clinical outcomes after implantation of AcrySof Toric IOLs with different clear corneal incisions. METHODS Sixty cataract patients with regular corneal astigmatism who underwent phacoemulsification combined with implantation of an AcrySof Toric IOL were enrolled. They were divided into two groups according to the position of the clear corneal incision: steep-axis and...