Results 71 to 80 of about 4,094,105 (298)

IRRIGATED YIELD ESTIMATION OF Populus Nigra STANDS IN NINEVEH PLANTATION [PDF]

open access: yesMesopotamia Journal of Agriculture, 2008
Consequence of the use of Non-Linear function in this study, which is believed to be in harmonic with the characteristics of tree stand, twelve trees were selected which represents different location over an area planted with Populus nigra trees ,and ...
Muzahim .S. younis
doaj   +1 more source

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

open access: yesAdvanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao   +7 more
wiley   +1 more source

Spatial design matrices and associated quadratic forms: structure and properties [PDF]

open access: yes
The paper provides significant simplifications and extensions of results obtained by Gorsich, Genton, and Strang (J. Multivariate Anal. 80 (2002) 138) on the structure of spatial design matrices.
Hillier, Grant, Martellosio, Federico
core   +2 more sources

Exceptional Electro‐Optic Coefficient Unlocked via Polarization Swaying in KNbO3 Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
We present the largest reported electro‐optic response in any material to date, guided by a new design principle that exploits ultralow coercive field polarization swaying enabled by low‐symmetry ferroelectric phases in monoclinic KNbO3 thin films for energy‐efficient classical and quantum photonic integrated circuits. ABSTRACT The electro‐optic effect
Sankalpa Hazra   +11 more
wiley   +1 more source

Mean quadratic score (QS), mean logarithmic score (LS), mean continuous ranked probability score (CRPS), and harmonic mean of p-values from four score-based calibration tests ().

open access: yes, 2020
Mean quadratic score (QS), mean logarithmic score (LS), mean continuous ranked probability score (CRPS), and harmonic mean of p-values from four score-based calibration tests ().
Samuel Pawel (8748135)   +1 more
core   +1 more source

The Composite Theorem of Ternary Quadratic Inequalities and its Applications [PDF]

open access: yes, 2008
In this paper, we establish the composite theorem of ternary quadratic inequalities by using the Decision Theorem and Hölder inequality. Its applications in triangle inequalities are discussed, and several problems and conjectures are put ...
Liu, Jian
core   +3 more sources

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

open access: yesAdvanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis   +8 more
wiley   +1 more source

Discrete quadratic splines

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In the present paper, we define a new class of discrete splines and study the existence, uniqueness, and convergence properties of discrete quadratic splines satisfying the Mean Averaging Condition.
Surendra Singh Rana
doaj   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Quadratic Hedging of Basis Risk [PDF]

open access: yes
This paper examines a simple basis risk model based on correlated geometric Brownian motions. We apply quadratic criteria to minimize basis risk and hedge in an optimal manner. Initially, we derive the Follmer-Schweizer decomposition of a European claim.
Hardy Hulley, T. A. McWalter
core  

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