Results 31 to 40 of about 2,158,107 (298)

Conductance scaling at the band center of wide wires with pure non--diagonal disorder [PDF]

open access: yes, 2002
Kubo formula is used to get the scaling behavior of the static conductance distribution of wide wires showing pure non-diagonal disorder. Following recent works that point to unusual phenomena in some circumstances, scaling at the band center of wires of
A. Altland   +24 more
core   +1 more source

Root distributions in a laboratory box evaluated using two different techniques (gravimetric and image processing) and their impact on root water uptake simulated with HYDRUS

open access: yesJournal of Hydrology and Hydromechanics, 2016
Knowledge of the distribution of plant roots in a soil profile (i.e. root density) is needed when simulating root water uptake from soil. Therefore, this study focused on evaluating barley and wheat root densities in a sand-vermiculite substrate.
Klement Aleš   +4 more
doaj   +1 more source

Effect of Oriental beech root reinforcement on slope stability (Hyrcanian Forest, Iran)

open access: yesJournal of Forest Science, 2014
Vegetation significantly affects hillslope mechanical properties related to shallow landslides and slope stability. The objective of this study was to investigate and quantify the effect of Oriental beech root reinforcement on slope stability.
E. Abdi
doaj   +1 more source

Root Distribution and Its Impacts on the Drought Tolerance Capacity of Hybrid Rice in the Sichuan Basin Area of China

open access: yesAgronomy, 2019
Drought is one of the major factors limiting rice yield worldwide. A total of 46 hybrid rice varieties were chosen to investigate their root distribution and their response to drought. A field experiment was carried out in a dry shed building to evaluate
Xuechun Wang   +9 more
doaj   +1 more source

Nitrogen Fertilization Increases Root Growth and Coordinates the Root–Shoot Relationship in Cotton

open access: yesFrontiers in Plant Science, 2020
The root system plays an important role in the growth and development of cotton, and root growth is closely related to shoot growth, both of which are affected by N availability in the soil.
Jing Chen   +10 more
doaj   +1 more source

Water uptake by trees in a riparian hardwood forest (Rhine floodplain, France) [PDF]

open access: yes, 2008
Water flow in the soil–root–stem system was studied in a flooded riparian hardwood forest in the upper Rhine floodplain. The study was undertaken to identify the vertical distribution of water uptake by trees in a system where the groundwater is at a ...
Armstrong   +27 more
core   +3 more sources

Distribution of Expansins in Graviresponding Maize Roots [PDF]

open access: yesPlant and Cell Physiology, 2000
To test if expansins, wall loosening proteins that disrupt binding between microfibrils and cell wall matrix, participate in the differential elongation of graviresponding roots, Zea mays L. cv. Merit roots were gravistimulated and used for immunolocalization with anti-expansin. Western blots showed cross-reaction with two proteins of maize, one of the
N, Zhang, K H, Hasenstein
openaire   +2 more sources

Canonical Trees, Compact Prefix-free Codes and Sums of Unit Fractions: A Probabilistic Analysis [PDF]

open access: yes, 2015
For fixed $t\ge 2$, we consider the class of representations of $1$ as sum of unit fractions whose denominators are powers of $t$ or equivalently the class of canonical compact $t$-ary Huffman codes or equivalently rooted $t$-ary plane "canonical" trees.
Heuberger, Clemens   +2 more
core   +2 more sources

ON THE DISTRIBUTION OF ROOTS OF CERTAIN DETERMINANTAL EQUATIONS [PDF]

open access: yesAnnals of Eugenics, 1939
The articles published by the Annals of Eugenics (1925–1954) have been made available online as an historical archive intended for scholarly use. The work of eugenicists was often pervaded by prejudice against racial, ethnic and disabled groups. The online publication of this material for scholarly research purposes is not an endorsement of those views
openaire   +2 more sources

Nitrate and phosphate availability and distribution have different effects on root system architecture of Arabidopsis [PDF]

open access: yes, 2002
Plant root systems can respond to nutrient availability and distribution by changing the three-dimensional deployment of their roots: their root system architecture (RSA). We have compared RSA in homogeneous and heterogeneous nitrate and phosphate supply
Fitter, A H   +3 more
core   +1 more source

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