x

Science & Engineering

Fifteen Eighty Four

Menu

Number of articles per page:

  • 14 Feb 2020

    Expanding areas of the applications of active analog filters

      ‘A transducer for separating waves on the basis of the frequencies’ or ‘electric filters’ is an interesting but wide study area on account of their ever-increasing areas of applications. Traditionally, filters are classified on the basis of type of passive or active components used which decided their useful frequency range of operation. For example, […]

    Read More
  • 27 Nov 2019
    Geraint Lewis

    Video: Interview with ‘Cosmic Revolutionary’ Geraint Lewis

    Interview with ‘Cosmic Revolutionary’ Geraint Lewis from CUP Academic on Vimeo.   TRANSCRIPT: Geraint Lewis: I’m Geraint Lewis and I’m a professor of astrophysics at the University of Sydney and I am the author with Luke Barnes of A Cosmic Revolutionaries Handbook (or: How to Overthrow the Big Bang)   What reader did you have […]

    Read More
  • 29 Oct 2019
    Carol Frieze, Jeria L. Quesenberry

    Gender Gaps in Computing: Myth vs Fact

    Authors, Carol Frieze and Jeria L. Quesenberry debunk five common myths on the Gender Gap in Computing

    Read More
  • 23 Oct 2019
    Todd Timberlake

    Observing Transits of Mercury from 1631 to Now

    On November 11, 2019, observers will be able to see a rare sight: a transit of Mercury across the face of the Sun. Mercury transits are visible only about 13 times per century. Todd Timberlake, co-author of Finding our Place in the Solar System discusses the history of this rare sight.

    Read More
  • 9 Oct 2019
    V. I. Naoumov, A. V. Demin, A. L. Abdullin, V. G. Krioukov

    Chemical Kinetics in Combustion and Reactive Flows: Modeling Tools and Applications

    The book accumulates more than a 40-year experience of the authors’  research in the field  of chemical non-equilibrium effects in combustion and reactive flows and includes our theoretical developments and tools which have a number of novel features that include but are not limited to the following: Chemical kinetics equations in exponential form. They provide […]

    Read More
  • 9 Oct 2019
    Fig. 4.13 ‘Arrangement of a helix slow-wave structure’
    Richard G. Carter

    New Model of Helix Slow-Wave Structures

    The development of a fast and accurate method for computing the properties of the helix slow-wave structures used in travelling-wave tubes (TWTs) is described. The calculation uses a sheath helix model in which the shunt capacitance and series inductance are adjusted by constants whose values depend only on the dimensions of the structure. The constant for the capacitance is calculated using a 2D finite difference solution of Laplace’s equation. The constant for the inductance can be inferred from the phase velocity when the phase difference per turn is 180 degrees.

    Read More
  • 9 Oct 2019

    Energy Transfers in Fluid Flows

    Understanding turbulence is an important and challenging problem with a million dollar prize money on it.  We illustrate the complexity of a turbulent flow using an example.  Consider coffee being mixed vigorously, say by stirring (Figure 1(a)).  The kinetic energy fed at the large-scales cascades to intermediate scales and then to small scales, as shown […]

    Read More
  • 20 Sep 2019
    Wireless AI
    K. J. Ray Liu, Beibei Wang

    Wireless AI

    In the era of Internet of Things (IoT), billions of smart devices, household appliances, smart phones, sensors, vehicles are connected by radio frequency signals. With the ubiquitous deployment of wireless radio devices, it will be possible to measure and track virtually everything everywhere. In fact, here when one refers to “wireless,” it is no longer […]

    Read More

Number of articles per page:

Authors in Science & Engineering