Results 21 to 30 of about 5,069,927 (255)

Plugging mechanisms of polymer gel used for hydraulic fracture water shutoff

open access: yese-Polymers, 2020
The performance of polymer gel to plug a hydraulic fracture is greatly affected by its distribution patterns and gelling effect. In this study, the migration of a gel plugging agent in a fracture and its plugging after gelling were investigated by ...
Zhang Song   +4 more
doaj   +1 more source

IEC 61499 Distributed Design Patterns

open access: yes2021 26th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA ), 2021
IEC 61499 emerged as a language for modeling distributed control systems. An Application is a platform-independent model that is comprised of modular components. High reusability of these components and high reconfigurability of the underlying system configuration can only be achieved with advanced design patterns.
Sonnleithner, Lisa   +3 more
openaire   +2 more sources

Towards distributed convoy pattern mining [PDF]

open access: yesProceedings of the 23rd SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2015
Mining movement data to reveal interesting behavioral patterns has gained attention in recent years. One such pattern is the convoy pattern which consists of at least m objects moving together for at least k consecutive time instants where m and k are user-defined parameters.
Orakzai, Faisal   +2 more
openaire   +3 more sources

Effects of Environmental Factors on the Diversity of Grasshopper Communities along Altitude Gradients in Xizang, China

open access: yesInsects
To determine the grasshopper species composition, altitudinal distribution patterns, and their main drivers, we conducted a study in Xizang using 33 sample plots ranging from 600 to 4100 m.
Yonghui Li   +8 more
doaj   +1 more source

Penyebaran Dan Karakteristik Habitat Jenis Rasamal (Altingia excelsa Noronha) di Taman Nasional Gunung Halimun Salak

open access: yesJournal of Natural Resources and Environmental Management, 2019
Rasamala (Altingia excelsa Noronha) is one of the primary species in Halimun Salak Mountain National Park that grows in the lower mountain forests. In addition to the value of conservation, almost all parts of rasamala species can be utilized such as ...
Istomo Istomo, Putri Novita Sari
doaj   +1 more source

Typical patterns of the water temperature distribution in the upper mixed layer of the Bering Sea in winter season

open access: yesИзвестия ТИНРО, 2023
Typical patterns of the water temperature distribution in the upper mixed layer of the Bering Sea in winter are determined on all available oceanographic data obtainedby research institutions of Russia, Japan, USA, and China.
V. A. Luchin
doaj   +1 more source

The Cumulative Distribution Transform and Linear Pattern Classification

open access: yes, 2017
Discriminating data classes emanating from sensors is an important problem with many applications in science and technology. We describe a new transform for pattern identification that interprets patterns as probability density functions, and has special
Kolouri, Soheil   +3 more
core   +1 more source

Exponential distribution for the occurrence of rare patterns in Gibbsian random fields [PDF]

open access: yes, 2003
We study the distribution of the occurrence of rare patterns in sufficiently mixing Gibbs random fields on the lattice $\mathbb{Z}^d$, $d\geq 2$. A typical example is the high temperature Ising model.
Abadi, M.   +3 more
core   +6 more sources

Unveiling the Impact of Climatic Factors on the Distribution Patterns of Caragana spp. in China’s Three Northern Regions

open access: yesPlants
Understanding the impacts of climate change on species’ geographic distributions is fundamental for biodiversity conservation and resource management. As a key plant group for ecological restoration and windbreak and sand fixation in arid and semi-arid ...
Weiwei Zhao   +4 more
doaj   +1 more source

Spatial distribution pattern of European hake, Merluccius merluccius (Pisces: Merlucciidae), in the Mediterranean Sea

open access: yesScientia Marina, 2019
The present study provides updated information on the occurrence, abundance and biomass distribution patterns and length frequencies of Merluccius merluccius in the Mediterranean Sea, by analysing a time series of data from the Mediterranean ...
Letizia Sion   +23 more
doaj   +1 more source

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