Results 51 to 60 of about 5,877,021 (299)

occumb: An R package for site occupancy modeling of eDNA metabarcoding data

Population Ecology, EarlyView.
This study introduces a new R package, occumb, for the convenient application of site occupancy modeling using environmental DNA (eDNA) metabarcoding data. We outline a data analysis workflow, including data setup, model fitting, model assessment, and comparison of potential study settings based on model predictions, all of which can be performed using
Keiichi Fukaya, Yuta Hasebe
wiley   +1 more source

Analysis of Longitudinal Guided Wave Propagation in a Liquid-Filled Pipe Embedded in Porous Medium

Applied Sciences, 2021
To study the leakage situation of a liquid-filled pipe in long-term service, a model of a liquid-filled pipe embedded in an infinite porous medium as well as in a finite porous medium is designed.
Nana Su, Qingbang Han, Yu Yang, Minglei Shan, Jian Jiang   +4 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

A study on stabilization of operation time for hydraulic operating circuit breaker (Simulation and investigation of hydraulic stabilization system holding constant high pressure)

Nihon Kikai Gakkai ronbunshu, 2015
Numerical simulation for a hydraulic operation stabilizing system of gas circuit breaker (GCB) driven by a hydraulic operating mechanism is treated . Valve collision and hydraulic column separation, created in hydraulic fluid by the movement of valves ...
Tohru YAMASHITA, Tsutomu SUGIYAMA, Yoshiki HIRANO, Nobuya NAKAJIMA, Toshiaki YOSHIZUMI   +4 more
doaj   +1 more source

On Characterising Distributability [PDF]

Logical Methods in Computer Science, 2013
We formalise a general concept of distributed systems as sequential components interacting asynchronously. We define a corresponding class of Petri nets, called LSGA nets, and precisely characterise those system specifications which can be implemented as LSGA nets up to branching ST-bisimilarity with explicit divergence.
van Glabbeek, Rob J., Goltz, Ursula, Schicke-Uffmann, Jens-Wolfhard   +2 more
openaire   +7 more sources

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

Population Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source

Enhancing Grid Stability in Renewable Energy Systems Through Synchronous Condensers: A Case Study on Dedieselization and Assessment Criteria Development

Energies
The dedieselization program is one of the PLN’s (Indonesia’s state-owned utility company) programs to reduce the greenhouse gas effect. The program manifestation is the integration of photovoltaic (PV) systems into isolated island networks by ...
Kevin Gausultan Hadith Mangunkusumo, Arwindra Rizqiawan, Sriyono Sriyono, Buyung Sofiarto Munir, Putu Agus Pramana, Muhamad Ridwan   +5 more
doaj   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

Population Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Multi-Agent Based Fully Distributed Economic Dispatch in Microgrid Using Exact Diffusion Strategy

IEEE Access, 2020
To solve the economic dispatch (ED) problem of multiple distributed generations in the microgrid, this paper proposes a fully distributed method by using the exact diffusion strategy which can achieve exact convergence under sparse communication network.
Yongjing He, Wei Wang, Xuezhi Wu
doaj   +1 more source

Distributivity in Lattices [PDF]

Duke Mathematical Journal, 1952
A lattice L is infinitely (join) distributive if a ∩ ∪ B b = ∪ B (a ∩ b) whenever the indicated joins exist in L. Clearly infinite distributivity implies ordinary distributivity. On the other hand it is easy to give examples of distributive lattices which are not infinitely distributive. For example, the rational integers under the relation of division
Dilworth, R. P., McLaughlin, J. E.
openaire   +3 more sources