Shmoys j (64 resultados)

Condición: New.

Pamphlet. Condición: Very Good. Vol 74, No 9, pp. 2265-2270, Illus, Extracted from orig vol, begins with title page, stapled & trimmed, thus is like a pamphlet, VG.

Condición: New.

Pamphlet. Condición: Very Good. Vol 39, No 3, pp. 1670-1680, Illus, 4to, Extracted from orig vol, begins with title page, trimmed & stapled, thus is like a pamphlet, last two pages in facsimile, else VG.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Condición: New.

Hardback or Cased Book. Condición: New. Diffraction of Electromagnetic Waves by a Plane Wire Grating. Book.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Condición: New. In English.

Condición: New. In English.

Condición: New.

Condición: New.

Condición: New.

Condición: New.

Condición: As New. Unread book in perfect condition.

Condición: As New. Unread book in perfect condition.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Condición: New. In English.

Condición: New. In English.

Condición: New.

Condición: As New. Unread book in perfect condition.

Condición: As New. Unread book in perfect condition.

Condición: New.

Paperback. Condición: New. Print on Demand. This book explores the intriguing world of low-frequency radio waves, a fascinating phenomenon that has captivated scientists for decades. The author delves into the complexities of how these waves travel between the Earth and the ionosphere, a layer of charged particles in the atmosphere. The book presents a detailed analysis of various models for understanding this propagation, including the groundbreaking work of Watson, who first proposed a model using a homogeneous ionosphere. The author then introduces a new model that accounts for the exponentially varying ionosphere, utilizing Bessel functions to solve the equations. The book delves into the properties of these waves, including their propagation constant, angle of arrival, and group velocity, and offers insights into the fascinating interplay between these parameters and the characteristics of the ionosphere. Finally, the author explores the implications of this research for understanding 'tweeks,' a unique type of low-frequency atmospheric noise signal. This book offers a valuable and detailed exploration of a complex scientific topic, providing a deeper understanding of the behavior of low-frequency radio waves and their role in atmospheric phenomena. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…

Paperback. Condición: New. Print on Demand. This book delves into the complex world of radio wave propagation through the Earth's ionosphere, a critical area of study for long-distance communication. Building upon the work of previous researchers, the author investigates the reflection of long radio waves under various conditions, particularly focusing on the effects of both vertical and oblique magnetic fields and varying collision frequencies. The author meticulously examines the mathematical models that govern wave propagation, exploring how different factors, such as the angle of incidence and the presence of a magnetic field, influence the reflection coefficient and ultimately affect the signal strength received at a distant location. The book presents a detailed analysis of the dielectric constants and the wave equations involved, employing the Appleton-Hartree formula to understand the behavior of radio waves as they encounter the ionosphere. The author skillfully breaks down the complex mathematical concepts into accessible language, using illustrative examples to demonstrate the principles at play. This book offers a valuable contribution to the field of radio wave propagation, providing insights into the theoretical underpinnings of long-distance communication that were crucial to understanding the capabilities and limitations of radio transmission in the early years of the technology. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…