Results 21 to 30 of about 524,624 (282)
Analysis of price changes of selected roundwood assortments in some Central Europe countries
Journal of Forest Science, 2012 The paper deals with the analysis of price changes of roundwood (spruce, fir and beech sawlog, fuelwood) and energy wood in Slovakia, Czech Republic and Austria during the period of 2008-+September 2011.
J. Suchomel +3 more
doaj +1 more source
OAI-PMH for Resource Harvesting [PDF]
, 2005 A variety of examples have arisen in which the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) has been used for applications beyond bibliographic metadata interchange.
Van de Sompel, Herbert +1 more
core +1 more source
Interdigitated Horizontal Electrodes for Organic Solar Cells
IEEE Access, 2018 We first introduce a new electrode structure for organic solar cells (OSCs), the so-called interdigitated horizontal electrode (IHE), in which an electron-collecting electrode and a hole-collecting electrode are horizontally separated.
Young-Jun You +3 more
doaj +1 more source
Nature, 2007 The public should be consulted on contentious research and development early enough for their opinions to influence the course of science and policy-making.
Joly, Pierre Benoit, Rip, Arie
openaire +3 more sources
Journal of Forest Science, 2016 This article was aimed at assessment of selected factors of the work environment, which influenced the operators of harvesters and forwarders. The selection of the work environment factors was based on a thorough literature survey.
M. Jankovský +3 more
doaj +1 more source
Giant piezoelectric voltage coefficient in grain-oriented modified PbTiO3 material
Nature Communications, 2016 High piezoelectric voltage coefficients drive the sensitivity of piezoelectric sensors. Here, the authors synthesized textured Sm- and Mn-doped PbTiO3ceramics and demonstrate significant enhancement in voltage coefficient.
Yongke Yan +4 more
doaj +1 more source
Nanomaterials, 2021 Cellulose nanofiber (CNF) and hybrid zeolite imidazole framework (HZ) are an emerging biomaterial and a porous carbonous material, respectively. The composite of these two materials could have versatile physiochemical characteristics.
Hemraj M. Yadav +4 more
doaj +1 more source
Computers & Chemical Engineering, 2023 Solar energy has been an attractive source of renewable energy because of its enormous magnitude and availability everywhere on Earth. The nature has been capturing and storing solar energy on Earth in the form of chemical energy via photosynthesis. Over millenniums, humans have used their creativity to harvest the energy.
Masoud Soroush, Yashar Hajimolana
openaire +3 more sources
Energy harvesting from vibrations with a nonlinear oscillator [PDF]
, 2009 In this paper we present a nonlinear electromagnetic energy harvesting device that has a broadly resonant response. The nonlinearity is generated by a particular arrangement of magnets in conjunction with an iron-cored stator.
Clare, Lindsay R. +11 more
core +1 more source
Advances in MeteorologyThe primary objective of irrigated agriculture is to produce crops with the help of irrigation. This field study was conducted during the 2017 and 2018 cropping seasons at the experimental farmland of Melkassa Agricultural Research Center, Ethiopia.
Tatek Wondimu Negash +2 more
doaj +1 more source