Phone Mast Research Articles

The lost fortress of Onoguris? Newly discovered sixth-century AD fortifications at Khuntsistsikhe, western Georgia

The village of Khuntsi is located in the Martvili municipality of Samegrelo, western Georgia, on the west bank of the Tskhenistskali River, on the road that links Martvili, Khoni and Kutaisi. A few short sections of wall on Kukiti Hill (known locally as ‘Najikhu’, translating roughly from Mingrelian as ‘ruins (remains) of a castle’) indicate the presence of a fortress. Six years ago, the installation of a mobile phone mast and associated infrastructure without consultation with the appropriate archaeological agencies revealed and damaged archaeological structures. Animal bone and fragments of pottery were retrieved, and are currently stored in the school in Khuntsi. It was information from a local school teacher, Zoya Gadelia, that led the Anglo-Georgian Expedition to Nokalakevi to investigate the site in 2015.

Vibration analysis of mobile phone mast system by Rayleigh method

To study the vibration of beams and columns, discretization techniques are required because such structures are continuous systems with infinite degrees of freedom. However, one can associate such systems to a system with a single degree of freedom, restricting the form to which the system will deform and describing their properties as a function of generalized coordinates. This technique is called the Rayleigh method. However, actual structures are more complex than simple beams and columns because their properties vary along their length. The objective of this work is to apply the technique recommended by Rayleigh to actual structures and find a single equation and correction factor that can be used to resolve practical problems in engineering. The structural elements selected for this study are metallic high-slenderness poles, for which the frequency of the first vibration mode were calculated analytically, as well as by finite element method-based computer modeling for comparative purposes. The results indicate that the analytical solution is 16% greater and 1% minor than the computational solution, and correction factors of 1.4 and 1.32 were found, respectively.

Radiofrequency radiation injures trees around mobile phone base stations

In the last two decades, the deployment of phone masts around the world has taken place and, for many years, there has been a discussion in the scientific community about the possible environmental impact from mobile phone base stations. Trees have several advantages over animals as experimental subjects and the aim of this study was to verify whether there is a connection between unusual (generally unilateral) tree damage and radiofrequency exposure. To achieve this, a detailed long-term (2006–2015) field monitoring study was performed in the cities of Bamberg and Hallstadt (Germany). During monitoring, observations and photographic recordings of unusual or unexplainable tree damage were taken, alongside the measurement of electromagnetic radiation. In 2015 measurements of RF-EMF (Radiofrequency Electromagnetic Fields) were carried out. A polygon spanning both cities was chosen as the study site, where 144 measurements of the radiofrequency of electromagnetic fields were taken at a height of 1.5m in streets and parks at different locations. By interpolation of the 144 measurement points, we were able to compile an electromagnetic map of the power flux density in Bamberg and Hallstadt. We selected 60 damaged trees, in addition to 30 randomly selected trees and 30 trees in low radiation areas (n=120) in this polygon. The measurements of all trees revealed significant differences between the damaged side facing a phone mast and the opposite side, as well as differences between the exposed side of damaged trees and all other groups of trees in both sides. Thus, we found that side differences in measured values of power flux density corresponded to side differences in damage. The 30 selected trees in low radiation areas (no visual contact to any phone mast and power flux density under 50μW/m2) showed no damage. Statistical analysis demonstrated that electromagnetic radiation from mobile phone masts is harmful for trees. These results are consistent with the fact that damage afflicted on trees by mobile phone towers usually start on one side, extending to the whole tree over time.

Initial undamped resonant frequency of slender structures considering nonlinear geometric effects: the case of a 60.8 m-high mobile phone mast

In this study, an analytical approach based on the Rayleigh method is adopted to calculate the first resonant frequency of a 60.80 m-high mobile phone mast system, by considering the geometric stiffness, functions of the concentrated forces, and self-weight of the structure. Such a technique is applicable to continuous systems with infinite degrees of freedom. However, it is important to bear in mind that actual structures are more complex than simple systems, such as beams and columns, because the properties of actual structures vary with their length. For comparison, a finite element method (FEM)-based computer simulation is performed. First, the axial forces on each segment of the structure are compared. Then, under geometric nonlinearity, the vibration frequency of the fundamental mode is calculated analytically. Finally, the structural stiffness is evaluated. The results of the analytical approach are found to differ slightly from those of the FEM-based model.

MAKING SENSE OF RADIATION: A GUIDE TO RADIATION AND ITS HEALTH EFFECTS

Long absence of national research body and national policy for research in Sudan are responsible for inefficient research system. This shaped and determined the main features of health research. Most of health research is done for academic purposes. It is fragmented and done in isolation within each research institution. There are no means of communication or coordination between numerous research and academic institutions involved in health research. Publication and dissemination of research findings is not well observed. Any national authority does not govern health research and even policies or regulations do not exit. Despite the early mentioned research activities, there is no obvious impact of research in health development in the country. A meticulous literature review and extensive consultations were made to build a comprehensive approach to conduct this work. This study was performed in Khartoum state and it focuses in mobile phone mast, Pylon’s cable, Electrosensitivity and EM radiation in 2008. The study investigated Public discussion about radiation is a frustrating mixture of truths, half-truths and conjectures. As a result, some people are being made to worry unnecessarily about electric fields from pylons and radiation from mobile phones and computers. The results of this paper were an increased incidence of leukaemia among children living next to pylons and other more recent studies have found a similar association. Psychologists have long known that worry and anxiety can lead to strong physical changes in the body and that seems to be what is happening to ‘electrosensitives’.

Mobile Phone Mast Effects on Common Frog (Rana temporaria) Tadpoles: The City Turned into a Laboratory

An experiment has been made exposing eggs and tadpoles of the common frog (Rana temporaria) to electromagnetic radiation from several mobile (cell) phone antennae located at a distance of 140 meters. The experiment lasted two months, from the egg phase until an advanced phase of tadpole prior to metamorphosis. Measurements of electric field intensity (radiofrequencies and microwaves) in V/m obtained with three different devices were 1.8 to 3.5 V/m. In the exposed group (n = 70), low coordination of movements, an asynchronous growth, resulting in both big and small tadpoles, and a high mortality (90%) was observed. Regarding the control group (n = 70) under the same conditions but inside a Faraday cage, the coordination of movements was normal, the development was synchronous, and a mortality of 4.2% was obtained. These results indicate that radiation emitted by phone masts in a real situation may affect the development and may cause an increase in mortality of exposed tadpoles. This research may have huge implications for the natural world, which is now exposed to high microwave radiation levels from a multitude of phone masts.

Evaluation of Bayesian models for focused clustering in health data

AbstractThis paper examines the ability of Bayesian hierarchical models to recover evidence of disease risk excess around a fixed location. This location can be a putative source of health hazard, such as an incinerator, mobile phone mast or dump site. While Bayesian models are convenient to use for modeling, it is useful to consider how well these models perform in the true risk scenarios. In what follows, we evaluate the ability of these models to recover the true risk under simulation. It is surprising that the resulting posterior parameters estimates are heavily biased. Using the credible intervals for distance decline parameter to assess ‘coverage or power’ of detecting distance effect, the ‘power’ decreases with increasing correlation in the background population effect. The inclusion of correlated heterogeneity in models does affect the ability of the models to detect the stronger distance decline scenarios. The uncorrelated heterogeneity seems little affect this ability however. Copyright © 2007 John Wiley & Sons, Ltd.

Mobile phone mast development: The rise of third party governance in English planning?

Over the past 25 years or so successive UK governments have been concerned with the costs and unintended consequences of regulation on economic growth. As a result a range of new approaches and reg...

The Changing Regulation of Mobile-Phone Mast Development in a Devolved United Kingdom

In 1985, the Thatcher Conservative Government granted the newly deregulated mobile-phone companies permitted development rights to erect telecommunications masts up to 15 m in height. This dilution of planning control led to a proliferation of insensitively sited mobile-phone masts across the United Kingdom, prompting large-scale public hostility. After the publication of the Stewart Report in 2000, which pointed to the possible risks to people's psychological health from antennae radiation emissions, the newly devolved planning administrations of the United Kingdom conducted reviews of these permitted development rights. The author examines these reviews and the decisions that emerged from them. It is argued that the differentiated approach to mobile phone mast control that has resulted represents an early and important departure from what was, arguably, a unified planning system within the United Kingdom.