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Related Concept Videos

Stability of structures01:14

Stability of structures

242
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
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Stability01:28

Stability

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The time response of a linear time-invariant (LTI) system can be divided into transient and steady-state responses. The transient response represents the system's initial reaction to a change in input and diminishes to zero over time. In contrast, the steady-state response is the behavior that persists after the transient effects have faded.
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
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Stability of Equilibrium Configuration01:23

Stability of Equilibrium Configuration

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Understanding the stability of equilibrium configurations is a fundamental part of mechanical engineering. In any system, there are three distinct types of equilibrium: stable, neutral, and unstable.
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
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Cohesion01:07

Cohesion

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Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a...
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Stability of Equilibrium Configuration: Problem Solving01:13

Stability of Equilibrium Configuration: Problem Solving

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The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
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Theories of Dissolution: Diffusion Layer Model01:15

Theories of Dissolution: Diffusion Layer Model

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Dissolution, the process by which drug particles dissolve in a solvent, is explained by the diffusion layer model, a theoretical framework that simulates the absorption of oral drugs and allows us to analyze experimental data.
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
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Related Experiment Video

Updated: Sep 5, 2025

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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Structural stability of the evolving developer collaboration network in the OSS community.

Liu Peng1, Ma Jianan1, Li Wenjun1

  • 1School of Economics and Management, Jiangsu University of Science and Technology, Zhenjiang, China.

Plos One
|July 8, 2022
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Summary

This study analyzed the Angular Open Source Software (OSS) community

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Area of Science:

  • Computer Science
  • Network Science
  • Software Engineering

Background:

  • The success of Open Source Software (OSS) communities relies on the structural stability of developer collaboration networks.
  • Limited research exists on the evolving structural stability of these networks within OSS.
  • Understanding network dynamics is crucial for OSS community sustainability.

Purpose of the Study:

  • To construct and analyze the developer collaboration network of the Angular OSS community.
  • To investigate the structural stability of this network throughout its evolution.
  • To identify key factors contributing to network stability and community success.

Main Methods:

  • Constructed developer collaboration networks based on software version sequences for the Angular OSS community.
  • Analyzed network evolution and structural properties over time.
  • Identified network characteristics such as modularity and small-world properties.

Main Results:

  • The Angular OSS developer network consistently exhibits an economical modular small-world structure.
  • Network stability is maintained by a cohesive core of 'hubs' and 'connectors'.
  • Hubs organize modules, while connectors facilitate inter-module links.

Conclusions:

  • Core developers play a vital role in the sustainable development of OSS communities.
  • The identified network structure provides insights into community resilience.
  • Findings can inform strategies for protecting and supporting core developers in OSS projects.