Performance Analysis of a 5G Transceiver Implementation for Remote Areas Scenarios

The fifth generation of mobile communication networks will support a large set of new services and applications. One important use case is the remote area coverage for broadband Internet access. This use case ha significant social and economic impact, since a considerable percentage of the global population living in low populated area does not have Internet access and the communication infrastructure in rural areas can be used to improve agribusiness productivity. The aim of this paper is to analyze the performance of a 5G for Remote Areas transceiver, implemented on field programmable gate array based hardware for real-time processing. This transceiver employs the latest digital communication techniques, such as generalized frequency division multiplexing waveform combined with 2 by 2 multiple-input multiple-output diversity scheme and polar channel coding. The performance of the prototype is evaluated regarding its out-of-band emissions and bit error rate under AWGN channel.Comment: Presented in 2018 European Conference on Networks and Communications (EuCNC),18-21 June, 2018, Ljubljana, Sloveni

Evaluation and Calibration of a Soil Moisture Sensor for Measuring Poultry Manure or Litter Moisture Content

Moisture content (MC) of poultry manure or litter affects its ammonia (NH 3 ) emissions. Relating MC to ammonia emission of manure or litter is thus of importance to modeling and/or managing ammonia emissions from the manure sources. Development of such relationships would require the knowledge of ammonia emission and the concomitant MC of the manure or litter. This work was carried out to characterize the operational performance of a commercially available soil MC sensor for measuring MC of meat-bird (broiler and turkey) litters and laying-hen manure. Laboratory and field calibration tests of the sensor output vs. MC of the source were conducted for the meat-bird litters and layer manure, respectively. Moisture content varied from 27.1% to 55.5 % for the broiler litter, 22.8% to 56.1 % for the turkey litter, and 11.0% to 75.0 % for layer manure. Bulk density (BD) varied from 318 to 468 kg · m -3 for the meat-bird litters. Sensitivity of the sensor to source temperature was also evaluated. Multivariate linear regression models were developed to relate the sensor EMF output to the litter or manure MC and BD (R 2=0.95 – 0.98). The impact of litter temperature on MC measurement by the sensor was found to be rather small, 0.31% of the measured mV per o C deviation from the mean operating temperature over the range of 4 o C to 24 o C. Results of the study indicate that when properly calibrated, the soil MC measurement sensor offers a reasonable means to quantify MC of poultry litter or manure on a real-time basis

Clean Technologies and Environmental Management: A Study on a Small Dairy Industry in Brazil

Abstract Environmental management has become a wild card to the companies, especially small and medium enterprises. Pressures from governments, civil society organizations and the market itself, have been pushing companies to adopt an environmentally friendly approach. Such situations of pressure driving companies to invest in technology called "end of pipe" or "turn key" showing that the adoption of the environmental variable is presented largely as business costs. The objective of this paper was to study how the process was the incorporation of environmental variable on a small dairy industry. Because the situation of low capital investment, especially in micro and small enterprises, alternatives to the adoption of the environmental variable has been the search for clean technologies and eco-efficiency. Therefore, in order to be the case study of a small dairy industry, the theoretical discourses on clean technologies and eco-efficiency, in order to present another alternative is that companies seeking to benefit from environmental attitude that are being driven to adopt. The results show that environmental management in the proposed model for clean technologies and eco-efficiency provided by, among several benefits, generating new revenues from the sale of byproducts previously considered waste. It is therefore concluded that the dairy industry gained numerous benefits, especially the way the project was conducted and it was adopted a proactive stance

Beyond Health and Safety at Work: Reflections on Biopolitics in Occupational Health as an Important Component of International Health Security

The general objective in this chapter is to reflect on health and safety at work based on biopolitics and biopower. The intention will be to clarify unequal processes in health and safety at work. In addition to occupational health, occupational health and safety actions aim to increase control over workers’ bodies, as well as reduce costs in the work process. The intention is still to establish a dialogue with the French philosopher Michel Foucault and with the Italian philosopher Giorgio Agamben, both discussing the consequences of biopolitics and biopower in industrial society modern. The proposed reflections go beyond the benefits of occupational health and safety at work, as they aim to understand the centrality of life in industrial organizations. It is important and necessary to minimize the negative effects of inequality in health and safety at work. Only then will there be a reduction or elimination of health and safety risks at work

Ammonia Emissions of Pullets and Effects of Stocking Density

Data on ammonia (NH3) emissions from pullets (pre-laying hens) are non-existent, despite the large differences in nutritional and environmental conditions between raising pullets and laying hens. Different stocking densities (SD’s) in housing the birds may be used as a result of certain industry animal welfare guidelines. The objectives of this study were to determine NH3 emission rate (ER) of pullets during the growth period (4-18 wk of age), and to assess the effect of SD on NH3 ER of pullets and laying hens during a 6-d manure accumulation time (MAT). Data to date showed that there was no significant SD effect on NH3 ER in mg/pullet or mg/kg N intake; however, SD significantly affected NH3 ER in mg/kg manure, with the HD leading to higher NH3 ER per kg manure mainly after 3-d MAT. The results from this study help set a foundation for further field-scale measurement of NH3 emissions, and ultimately development of best management practices to effectively reduce NH3 emissions from egg production operations