نتایج جستجو برای: acer pseudo

تعداد نتایج: 52909  

2014
Xian-Ming Gu Ting-Zhu Huang Wei-Ru Xu Hou-Biao Li Liang Li Xi-Le Zhao

Recently, extensive researches on estimating the value of e have been studied. In this paper, the structural characteristics of I. Schur type inequalities are exploited to generalize the corresponding inequalities by variable parameter techniques. Some novel upper and lower bounds for the I. Schur inequality have also been obtained and the upper bounds may be obtained with the help of Maple and...

1997

5.1 ROOT MOTION .....................................................................................................................................................4 5.2 KINEMATIC CONSTRAINTS....................................................................................................................................5 5.3 MOTION CYCLIFICATION .................................................

2008
Vladimir L. Kalashnikov

Belarussian Polytechnical Academy kalashnikov [email protected] www.geocities.com/optomaplev Abstract The basics of the relativistic astrophysics including the celestial mechanics in weak field, black holes and cosmological models are illustrated and analyzed by means of Maple 6 Application Areas/Subjects: Science, Astrophysics, General Relativity, Tensor Analysis, Differential geometry, Differenti...

2014
Michaela Porubanova Daniel Joel Shaw Ryan McKay Dimitris Xygalatas

Previous research has shown that ideas which violate our expectations, such as schema-inconsistent concepts, enjoy privileged status in terms of memorability. In our study, memory for concepts that violate cultural (cultural schema-level) expectations (e.g., "illiterate teacher", "wooden bottle", or "thorny grass") versus domain-level (ontological) expectations (e.g., "speaking cat", "jumping m...

2005
Roger D. Nussbaum ROGER D. NUSSBAUM

We prove this conjecture in case (a) and signi cantly extend the range of p and q for which it is known in case (b). In cases (a) and (b), these questions are equivalent to global stability of the xed point (L;L) of the planar map (u; v) = (v; f(u; v)). For as in case (a), we consider natural four dimensional extensions T of 3 and S of . For 0 q < p, we prove that (L;L; L; L) is a global stable...

2014
Louis Duchesne Daniel Houle

Sugar maple syrup production is an important economic activity for eastern Canada and the northeastern United States. Since annual variations in syrup yield have been related to climate, there are concerns about the impacts of climatic change on the industry in the upcoming decades. Although the temporal variability of syrup yield has been studied for specific sites on different time scales or ...

2016
Nastasia R. Merceron Laurent J. Lamarque Sylvain Delzon

Acer negundo (boxelder maple) is a North American native tree species that currently invades riparian and disturbed areas in Europe, affecting both bank stability and ecosystem biodiversity. As a response to managers’ requests, we aimed at finding an eco-friendly method which would locally remove this species and help habitat restoration. Four control methods were tested on A. negundo adults an...

Journal: :Environmental monitoring and assessment 2010
Jose Alexander Elvir G Bruce Wiersma Suzanne Bethers Peter Kenlan

At the Bear Brook Watershed in Maine (BBWM), the forest tree composition was characterized and the effects of the chronic ammonium sulfate ((NH(4))(2)SO(4)) treatment on basal area growth, foliar chemistry, and gas exchange were investigated on forest species. The BBWM is a paired watershed forest ecosystem study with one watershed, West Bear (WB), treated since 1989 with 26.6 kg N ha(-1) year(...

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