Results 11 to 20 of about 553,677 (293)

Know your woods: new wood identification tools for professionals of the sector

open access: yesForest@, 2020
Illegal logging and related illegal timber trade are currently recognized as one of the world’s most pressing environmental problems. In several timber-exporting countries most of the trees are illegally cut, resulting in significant losses of incomes ...
Ruffinatto F   +5 more
doaj   +1 more source

Tramelling The Illegal Wildlife Trading: A Comparative Legislative Analysis of China and India

open access: yesSASI, 2021
Illegal wildlife trade is one of the major transnational crimes. Transnational Crime, by its very nature, is problematic as it surpasses national jurisdictions, as well as the parameters of information systems and law enforcement agencies.
Sandeep Kumar Mohanty   +1 more
doaj   +1 more source

Green Hydrogen: Resources Consumption, Technological Maturity, and Regulatory Framework

open access: yesEnergies, 2023
Current climate crisis makes the need for reducing carbon emissions more than evident. For this reason, renewable energy sources are expected to play a fundamental role.
Jesús Rey   +2 more
doaj   +1 more source

Batteries and Hydrogen Storage: Technical Analysis and Commercial Revision to Select the Best Option

open access: yesEnergies, 2022
This paper aims to analyse two energy storage methods—batteries and hydrogen storage technologies—that in some cases are treated as complementary technologies, but in other ones they are considered opposed technologies.
José Manuel Andújar   +3 more
doaj   +1 more source

A Hybrid Model for Forecasting Traffic Flow: Using Layerwise Structure and Markov Transition Matrix

open access: yesIEEE Access, 2019
Forecasting the traffic flow is greatly significant for traffic safety, energy conservation, and environmental protection. However, in the face of many external uncertainties, making accurate predictions about traffic volumes is a challenging issue. Many
Shaokun Zhang   +5 more
doaj   +1 more source

A Critical Review of Unmanned Aerial Vehicles (UAVs) Use in Architecture and Urbanism: Scientometric and Bibliometric Analysis

open access: yesApplied Sciences, 2021
In recent years the use of UAVs (Unmanned aerial vehicles) have proliferated in the civil sector for purposes such as search and rescue, remote sensing or real-time monitoring of road traffic, among others.
Marta Videras Rodríguez   +3 more
doaj   +1 more source

Análisis de la categorización del estado de conservación de las orquídeas en el Perú:

open access: yesRevista Peruana de Biología, 2020
Aunque la familia de las orquídeas es uno de los grupos de plantas mejor representados en los listados de conservación a nivel mundial, aun este número de representantes es pequeño considerando su alta diversidad y vulnerabilidad. Esto es particularmente
Carlos Martel
doaj   +1 more source

Do CITES trade restrictions work? Some evidence from the markets for sawfish trophies

open access: yesAquatic Living Resources, 2022
The durability of animal parts that are collected and traded as trophies has an impact on species sustainability, especially when animals are slow-growing, have low fecundity, or are particularly vulnerable to capture.
Gómez-Rodríguez Santiago   +1 more
doaj   +1 more source

Optimum System for Diagnosing Power Quality in Electrical Microgrids

open access: yesApplied Sciences
An electrical measurement network designed for analyzing power quality within microgrids is presented in this paper. It is very portable and easy to install across various types of microgrids. Data collected by the system meet the standards for measuring
Gabriel Gómez-Ruiz   +3 more
doaj   +1 more source

Observational Approaches to the Topology of the Universe [PDF]

open access: yes, 2000
Many different and complementary strategies for translating the basic principle of multiple topological imaging into observational analysis are now available, both for three-dimensional and two-dimensional catalogues.Comment: very compact, (2 page) write-
Roukema, Boudewijn F.
core   +3 more sources

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