Results 1 to 10 of about 2,693,298 (187)
Density functional theory with arbitrary basic variables [PDF]
Journal of Magnetism and Magnetic Materials, 2004 Abstract By modifying the Levy constrained-search formulation, the Hohenberg–Kohn theorem of the density functional theory is extended. The new theorem allows us to choose arbitrary physical quantities as basic variables, which uniquely determine the ground-state properties of the system.
Katsuhiko Higuchi, Masahiko Higuchi
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Arbitrary choice of basic variables in density functional theory: Formalism [PDF]
Physical Review B, 2004 The Hohenberg-Kohn theorem of the density functional theory is extended by modifying the Levy constrained-search formulation. The new theorem allows us to choose arbitrary physical quantities as the basic variables which determine the ground-state properties of the system. Moreover, the theorem establishes a minimum principle with respect to variations
Higuchi, Masahiko, Higuchi, Katsuhiko
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Measurement of basic density of total tree chips
Silva Fennica, 1976 The paper describes a method for the measurement of basic density of total tree chips. In the method the chips are placed in a container, which is immersed in a cylinder full of water, and the container is weighted at two levels. In the upper part of the
Kärkkäinen, Matti
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Nano Biomedicine and Engineering, 2022 The rGO-Ag NPs nanocomposite was synthesized by an easy, low-cost, one-step chemical method. The nanocomposite was analyzed by UV-Vis spectroscopy and atomic force microscope (AFM) to verify the properties of the nanoparticles.
Noora Al-Janabi, Amer Al-Nafiey
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Physical and Chemical Properties of Highland Bamboo (Yushania alpina) Culms Grown in Ethiopia
Drvna Industrija, 2023 Bamboo is the fastest growing plant currently known on earth, a property that enables it to be the best alternative as a future source of wood fi ber. This study investigated the effect of site and culm height on the physical and chemical properties of ...
Mahadi Mussa +3 more
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QUALITY OF TROPICAL HARDWOOD FLOORS [PDF]
Revista Árvore, 2021 This study aimed to determine the basic density of the wood and to simulate the performance of flooring produced with wood from five tropical species: Dipteryx odorata (Cumaru), Handroanthus spp.
Ana Carolina Silva Costa +5 more
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Forest Systems, 2022 Aim of the study: To estimate fresh and basic density values of Douglas fir deadwood for the five decay classes used in the National Forest Inventories (NFIs). Area of study: Rincine forest in Tuscany region (Italy).
Alessandro Casagli +5 more
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Characterization of eucalyptus clones subject to wind damage [PDF]
Pesquisa Agropecuária Brasileira, 2017 : The objective of this work was to test a new methodology to assess the resistance of trees to wind damage and determine the characteristics that increase clone resistance to winds.
Antônio José Vinha Zanuncio +6 more
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Scientia Agropecuaria, 2023 Bamboos are abundant and versatile, hence their growing interest throughout the world in a variety of uses, however, there is little technical information on the anatomy and physical properties that are important to further expand and diversify its uses.
Leif Armando Portal-Cahuana +2 more
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The variability of pulp-wood basic specific gravity of softwood
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004 In the present study, basic density of pulpwood of Norway spruce (Piceas abies /L./ Karst.) and Scots pine (Pinus sylvestris L.) was investigated. The variability of basic density and factors applied are out of concern.
Jiří Holan, Vladimír Gryc
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