Primary Network Systems
Primary Network Systems - Related Videos
08:42
Assessment of Social Cognition in Non-human Primates Using a Network of Computerized Automated Learning Device (ALDM) Test Systems
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Cited by 15 •
2015
Fagot & Paleressompoulle1 have published an automated learning device (ALDM) aimed at testing individual cognitive abilities in semi-free ranging monkeys. The main goal of our protocol is to use a network of ALDM test units to study social cognition in non-human primates.
02:26
Protein Networks
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2020
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions. These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
02:18
Network Covalent Solids
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2020
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds. To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
12:27
Piping Networks and Pressure Losses
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2023
Source: Alexander S Rattner, Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA This experiment introduces the measurement and modeling of pressure losses in piping networks and internal flow systems. In such systems, frictional flow resistance from channel walls, fittings, and obstructions causes mechanical energy in the form of fluid pressure to be converted to heat. Engineering analyses are needed to size flow hardware to ensure...
08:14
Using Primary Neurosphere Cultures to Study Primary Cilia
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Cited by 3 •
2017
The primary cilium is fundamentally important in neural progenitor cell proliferation, neuronal differentiation, and adult neuronal function. Here, we describe a method to study ciliogenesis and the trafficking of signaling proteins to cilia in neural stem/progenitor cells and differentiated neurons using primary neurosphere cultures.
FAQs
Three-phase routing distributes electrical power through feeders and conductors while switches and protective devices control how sections are connected. This arrangement allows engineers to manage the path from substations toward distribution transformers and maintain coordinated operation across the network. Its configuration affects delivery efficiency, voltage regulation, and the ability to limit the consequences of equipment or line faults.
Relays identify abnormal electrical conditions and signal breakers to disconnect the affected section. This coordinated action prevents a fault from unnecessarily interrupting the entire network, helping preserve service on healthy portions of the system. Engineers evaluate relay and breaker behavior as part of protection coordination, because selective isolation directly influences reliability, resilience, and the extent of service disruption.
Network capacity depends on how engineers plan feeders, conductors, substations, and downstream distribution transformers to carry expected power. Voltage performance also depends on the network configuration and the effectiveness of voltage regulation. These considerations become especially important when integrating solar generation or energy storage, since distributed energy resources change how power moves through the system and may affect operating conditions.
Engineers examine the network to determine required capacity, coordinate protection, and improve voltage regulation. They assess the relationships among substations, feeders, switches, protective devices, conductors, and distribution transformers rather than treating each component independently. The resulting analysis supports decisions about reliable electricity delivery, fault isolation, maintenance needs, and the integration of distributed energy resources.
A complete evaluation considers the substation connection, three-phase feeders, conductors, switches, protective devices, relays, breakers, and distribution transformers. Each element contributes to power routing, protection, or delivery to downstream customers. Considering these components together helps engineers identify how network design affects capacity, voltage regulation, fault isolation, maintenance requirements, and overall operating reliability.
They become particularly important when distributed energy resources are added to the distribution network, because engineers must account for their effect on power delivery and voltage regulation. Analysis helps determine whether the existing arrangement can accommodate these resources while maintaining coordinated protection and reliable service. This work supports more resilient operation without overlooking power quality or downstream delivery requirements.