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Multi-GeV electron beam generation via two-stage laser wakefield acceleration. [PDF]
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USB-powered physics experiments
The Physics Teacher, 2020Physics experiments powered by a universal serial bus (USB) connection are becoming increasingly common. With teachers going through so many batteries each year, USB-powered physics provides an economical and environmentally friendly alternative. In this article, the authors discuss several ways that USB power can provide a convenient way to do physics
James Lincoln, Anton Skorucak
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The transformative power of physics
Physics World, 2022Joanne O’Meara reviews Ten Days in Physics that Shook the World: How Physicists Transformed Everyday Life by Brian Clegg.
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Physical models for smart-power devices
Proceedings of the International Conference Mixed Design of Integrated Circuits and System, 2006. MIXDES 2006., 2006A careful prediction of the carrier mobility and impact-ionization generation is essential for the design of devices working in high-current/voltage conditions, where self-heating is relevant. Recently, some of the authors presented new physically-based models for both mobility and impact ionization, which have been validated up to very high operating ...
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Power Motivation, Stress and Physical Illness
Journal of Human Stress, 1980College students reporting a large number of life change events in the past six months also reported significantly more frequent and more severe instances of physical illness and more affective symptoms in the same time period. These relationships, however, were modified in an interesting way by type of life change and by individual differences.
D C, McClelland, J B, Jemmott
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Physics World
James McKenzie examines the key messages of a new report on the green economy from the Institute of Physics, which puts the work of physicists front and centre in dealing with climate change.
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James McKenzie examines the key messages of a new report on the green economy from the Institute of Physics, which puts the work of physicists front and centre in dealing with climate change.
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Nature, 1962
Physics and Politics By Prof. Max Born. Pp. vii + 86. (Edinburgh and London: Oliver and Boyd, Ltd., 1962.) 12s. 6d.
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Physics and Politics By Prof. Max Born. Pp. vii + 86. (Edinburgh and London: Oliver and Boyd, Ltd., 1962.) 12s. 6d.
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Physics of semiconductor power devices
Reports on Progress in Physics, 1982Semiconductor power devices are designed to rapidly switch or amplify high currents, to support high voltages, and to control electric power. Because of these requirements, their topographies and structures are different from those of small-signal devices. Specific designs are the result of the understanding of the physics of p-n junction HV breakdown,
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本文提出了一个描述社会权力动态的一般数学框架。与基于博弈论的传统模型不同,本研究采用了基于矢量微积分和非平衡热力学的方法。通过定义实体、资源和系统的几何属性,本文建立了五个基本公理,并推导出一组耦合微分方程——称为“三位一体方程”——描述系统的状态、成本和未来。该模型量化了系统几何相干性与资源耗散速率之间的函数关系,并展示了“功率方差”与“技术演变”之间的动态排斥定律。这项工作揭示了权力结构不可避免地趋向自我腐蚀的物理机制,为定量历史分析提供了一种新颖的理论工具。 本文提出了一种描述社会权力动力学的通用数学框架。不同于基于博弈论的传统模型,本研究采用了基于向量微积分和非平衡态热力学的方法。通过定义实体、资源与系统的几何属性,本文建立了五条基础公理,并推导出一组描述系统状态 ...
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