异常代理对活跃系统动态的影响
Nikita P Kryuchkov1, Artur D Nasyrov1, Konstantin D Gursky1
1Bauman Moscow State Technical University, 2nd Baumanskaya Street 5, 105005 Moscow, Russia.
Physical review. E
|April 18, 2024
概括
几颗异常粒子可以大大改变自动推进系统中的群体动态. 这项研究提供了对集群动物和活性物质的多代理动态的见解.
科学领域:
- 物理 物理学 物理
- 复杂的系统复杂的系统.
- 生物物理学的生物物理.
背景情况:
- 自行粒子的群聚行为是研究的一个关键领域.
- 了解集体动态对于生物和人工系统都至关重要.
研究的目的:
- 为了研究异常粒子如何影响群集系统的集体动态.
- 探索这些系统中不寻常的行为和状态过渡的出现.
主要方法:
- 自行粒子系统的模拟.
- 引入一小部分具有异常性质的粒子.
- 分析集体动态和新兴行为的变化.
主要成果:
- 少数异常粒子可以显著改变整体系统动态.
- 观察到不寻常的行为和动态状态之间的过渡.
- 异常粒子的存在可以导致出现集体模式.
结论:
- 异常粒子在塑造群体的行为中起着至关重要的作用.
- 这些发现为了解自然系统中的多代理动力学提供了基础,比如集群动物.
- 这项工作有助于研究活跃和活的软物质.
更多相关视频
05:22Dissociation of the Confounding Influences of Expectancy and Integrative Difficulty Residing in Anomalous Sentences in Event-related Potential Studies
Published on: May 9, 2019
5.4K
08:04Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
Published on: November 26, 2019
7.2K
相关概念视频
Second Order systems I
154
A servo system exemplifies a second-order system, featuring a proportional controller and load elements that ensure the output position aligns with the input position. The relationship between these components is described by a second-order differential equation. Applying the Laplace transform under zero initial conditions yields the transfer function, showing how inputs are converted to outputs in the system.
By reinterpreting the system, one can derive the closed-loop transfer function, which...
By reinterpreting the system, one can derive the closed-loop transfer function, which...
154
Second Order systems II
107
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
107
Entropy Change in Reversible Processes
2.5K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
2.5K
Cyclic Processes And Isolated Systems
2.8K
A thermodynamic system with zero heat exchange and work is an isolated system. For these systems, the internal energy remains constant.
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state.
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state.
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
2.8K
Factors Affecting Activity Coefficient
798
The extended Debye-Hückel equation indicates that the activity coefficient of an ion in an aqueous solution at 25°C depends on three partially interdependent properties: the ionic strength of the solution, the charge of the ion, and the ion size.
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a...
798
First Order Systems
90
First-order systems, such as RC circuits, are foundational in understanding dynamic systems due to their straightforward input-output relationship. Analyzing their responses to different input functions under zero initial conditions reveals significant insights into system behavior.
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
When a first-order system is subjected to a unit-step input, its response is characterized by its transfer function. By applying the Laplace transform of the unit-step input to the transfer function, expanding the...
90
