Computer aided frequency planning for the radio and tv broadcasts

Cataloged from PDF version of article.The frequency planning of the VHF and UHF broadcasts in Turkey is described. This planning is done with the aid of computer databases and digital terrain map. The frequency offset is applied whenever applicable to increase the channel capacity. The offset assignment is done through Simulated Annealing algorithm. The international rules and regulations concerning Turkey are also considered

A simple but efficient voice activity detection algorithm through Hilbert transform and dynamic threshold for speech pathologies

A simple but efficient voice activity detector based on the Hilbert transform and a dynamic threshold is presented to be used on the pre-processing of audio signals -- The algorithm to define the dynamic threshold is a modification of a convex combination found in literature -- This scheme allows the detection of prosodic and silence segments on a speech in presence of non-ideal conditions like a spectral overlapped noise -- The present work shows preliminary results over a database built with some political speech -- The tests were performed adding artificial noise to natural noises over the audio signals, and some algorithms are compared -- Results will be extrapolated to the field of adaptive filtering on monophonic signals and the analysis of speech pathologies on futures works20th Argentinean Bioengineering Society Congress, SABI 2015 (XX Congreso Argentino de Bioingeniería y IX Jornadas de Ingeniería Clínica)28–30 October 2015, San Nicolás de los Arroyos, Argentin

Heights And Weights Of Primary School Children Of Different Social Background In Ankara, Turkey

A cross-sectional anthropometric survey was carried out in a low socio-economic and high socioeconomic region of Ankara, Turkey, to measure the weights and heights of school children, The study group consisted of 5289 children between the ages of 5 and 11 years, Both boys and girls from the high socio-economic group had superior body measurements compared to those of the low socio-economic group, The difference between the mean weight for age values of two groups was statistically significant (P < 0.05), whereas no statistically significant difference was found on the basis of height for age values among all age groups, To make a comparison both with National Centre for Health Statistics and World Health Organisation (NCHS-WHO) standards and Turkish standards we used the data from high socio-economic group only, Our results showed that the mean height and weight values of boys and girls were higher than the 50th centile height and weight values of NCHS-WHO standards, Almost 25 years have passed since the measurements of Turkish standards were taken, The height differences were in the range of 0.24-1.51 cm/decade, with a mean value of 0.96 cm/decade, These results led us to conclude that, local/regional standards for height and weight are needed, and repeated assessments are useful for follow-up of populations.WoSScopu

URBAN INFORMATION MODEL FOR CITY PLANNING

SUMMARY: City planning is a complex task and therefore needs to consider the interplay between multiaspects of a city, for example, transport, pollution, and crime. A city model is important to representing urban issues in a clear manner to the relative stakeholders. Although some city models have been used in the planning process, they are often based on narrow data sets. When sustainability and the quality of urban life generally is considered a more holistic analysis of city issues during the planning process is needed. It calls for city models to be based on integrated data sets. The paper describes the concept and challenges of nD urban information model. The research work on how to develop an nD urban information model to accommodate data sets relevant to different aspects of city planning is presented