Laranjeiras do Sul, Brazil
Laranjeiras do Sul, Brazil

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de Souza R.C.,Soepar Ceap PR | Arruda G.,UFFS | Valente C.,FURB | Brioschi M.L.,University of Sao Paulo
Lasers in Medical Science | Year: 2016

The acupuncture meridians represent the flow of corporal energy which contains the acupuncture points. Laser acupuncture is a form of acupuncture stimulation by the use of laser. Thermographic images represent the propagation of heat in micro-environmental systems. The objective of this study was to investigate the use of thermographic images to document the changes on the small intestine meridian (S.I.M.) when submitted to laser acupuncture. Another important issue regards to the analysis of the flow direction if it is upward when stimulated by acupuncture points. For the execution of this work, a laser acupuncture pen was used in points of the meridian in the S.I.M. Two healthy male volunteers were selected (18 and 60 years old, respectively), and doses of 576,92 J/cm2 with low-power infrared laser equipment with a wavelength of 780 nm in the SI.3 and SI.19 points were applied. An infrared thermal camera was used to measure the temperature of the S.I.M. during the 6 min laser acupuncture pen stimulus. When the laser acupuncture of both volunteers was conducted in the SI.3 point, it presented hyper-radiation of the hemi face in the same side, far from the application site. When this was applied in the SI.19 point, hyper-radiation in the same point and temperature lowering at the end of the meridian were observed. The laser energy caused thermal changes along the path of the S.I.M., distal, and proximal at the same time, proving the existence of the S.I.M. © 2016 Springer-Verlag London


PubMed | UFFS, Soepar Ceap PR, FURB and University of Sao Paulo
Type: Journal Article | Journal: Lasers in medical science | Year: 2016

The acupuncture meridians represent the flow of corporal energy which contains the acupuncture points. Laser acupuncture is a form of acupuncture stimulation by the use of laser. Thermographic images represent the propagation of heat in micro-environmental systems. The objective of this study was to investigate the use of thermographic images to document the changes on the small intestine meridian (S.I.M.) when submitted to laser acupuncture. Another important issue regards to the analysis of the flow direction if it is upward when stimulated by acupuncture points. For the execution of this work, a laser acupuncture pen was used in points of the meridian in the S.I.M. Two healthy male volunteers were selected (18 and 60years old, respectively), and doses of 576,92J/cm


dos Santos D.,UFFS | de Souza E.G.,West Parana State University | Nobrega L.H.P.,West Parana State University | Bazzi C.L.,Federal Technological University of Paraná | Goncalves Junior A.C.,West Parana State University
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

The chemical and physical properties of a soil often show a spatial dependence. Thus, it is important to study their spatial variability, aiming to improve the crop management, to reduce the environmental impact, to optimize the machinery use, and to increase the efficiency of staff. So, this study aimed to evaluate the spatial variability of the physical properties of a distroferric Red Latosol (Typic Haplorthox) after soybean crop. The data were collected in an area of 2 ha managed under no tillage system, using a sampling grid of 30 x 33 m, where it was evaluated the macro, micro and the total porosity, the bulk density and the soil water content in 0 - 0.1 m layer. After the exploratory and geostatistical analyses, the theoretical models were set to the semivariograms for each attribute. The data interpolation was performed using the ordinary kriging. All the variables showed spatial dependence, which ranged from moderate (macroporosity, total porosity and soil water content) to strong (microporosity and bulk density), according to the nugget effect coefficient.


Heldwein A.B.,Federal University of Santa Maria | Maldaner I.C.,Instituto Federal Farroupilha | Radons S.Z.,UFFS | Loose L.H.,Federal University of Santa Maria | And 2 more authors.
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

This study aimed to develop models for estimating the net radiation (Q *) from the incident solar radiation (Rg) on canopies of sunflower plants. The experiments were conducted at the Plant Science Department of the Federal University of Santa Maria in 2007, 2008 and 2009 years. Q* was measured by net radiometers above the plants and Rg by automatic weather stations. For purposes of calculation, daily sums of Q* and Rg were performed, obtaining the relationship between Q* and Rg for each day. Models with high coefficient of determination and low RQME were obtained in test between measured and estimated values from an independent database, indicating precision to estimate net radiation in sunflower canopies, regardless of cultivation time in year. The general linear function with data obtained from different times of cultivation was: Q* = 0.5285 Rg (R 2 = 0.95), that the test showed RQME = 1.04 MJ m -2 d -1. It was concluded that net radiation (Q*) can be estimated using solar radiation measured by an automatic stations with sufficient accuracy for different purposes in sunflower agrometeorology.


dos Santos D.,UFFS | Guimaraes V.F.,West Parana State University | Klein J.,West Parana State University | Fioreze S.L.,São Paulo State University | Macedo Junior E.K.,West Parana State University
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

The water restriction can damage the performance of crops, especially in the flowering period. Thus, the aim of this research was to evaluate the response of genotypes of wheat submitted to water deficit in the beginning of flowering. The experiment was conducted in greenhouse, in a completely randomized design, in factorial scheme 3 x 2, with five replications. The factors studied were: three wheat cultivars (Coodetec (CD) 105, 108 and 111) and 2 irrigation managements (with and without imposition of water deficit). During the period of water deficit imposition, gravimetric soil moisture and the relative content of water in leaf were evaluated, while at the moment of rehydration the biometric variables were determined. At the end of the crop cycle the components of production were evaluated. Reduction was found in the gravimetric soil moisture, in the relative levels of water and in all biometric variables, in function of the water deficit. The grain production showed difference only among the water regimes, in which the cultivar CD 111 is more efficient in the maintenance of the productive potential in conditions of water deficit, through the quick recovery in the relative content of water in leaves.


Schulz D.G.,West Parana State University | Fey R.,UFFS | Malavasi U.C.,West Parana State University | De Matos Malavasi M.,West Parana State University
Floresta | Year: 2014

This essay compared development and fruit production of Jatropha curcas L. in relation to growing space and presence of an herbaceous competitor. The essay was composed by two circular plots with four plant growing areas (1.57 m2, 3.92 m2, 6.28 m2, and 8.63 m2) with eight replications for plot intercropped or not with Tifton 85. The cultivation of physic nut in the spacing of 6.28 m2 resulted in lower plant height and higher levels of leaf nitrogen and phosphorus, while the 1,57 m2 spacing resulted in increased plant height. The lowest values for plant height, number of leaves, number of fruits, SPAD index, and levels of nitrogen and phosphorus resulted in the intercropped plot. However, the 1.57 m2 spacing yelded higher stem diameter. Crown diameter presented the highest values in the 3.92 m2 spacing while the 1.57m2 limited the crown expansion. Maximum fruit production in monocrop plot was reached 18 months after planting date, which corresponded to the warmest season independently of planting space.


Radunz L.L.,UFFS | Mossi A.J.,UFFS | Zakrzevski C.A.,URI Integrated Regional University Brazil | do Amaral A.S.,URI Integrated Regional University Brazil | Grassmann L.,Tecnico Agricola
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2010

The aim of this work was to study the drying of sage at different air temperatures and to fit the experimental data with different mathematical models. The experiments were carried out using 6 tray dryers, for the temperatures of 40, 50, 60, 70, 80 and 90 °C. A randomized experimental design, with three replications, using 800 g of fresh leaves in each tray, was used. For the fitting of mathematical models to the experimental data the non-linear regression by the Quasi-Newton method was used. The values of the parameters of the models were estimated in terms of drying air temperature using the software Statistica 6.0®. The results showed that small increments in drying air temperature of drying results in a significant reduction in the drying time; the model of Henderson and Pabis (1961) modified model and the Midilli et al. model (2002) were adequate to describe the drying of sage in the temperature range of 40 to 90 °C; and the model of approximation of diffusion and the two terms model were adequate to describe the kinetics of drying in the range of temperature from 60 to 90 °C.


PubMed | UFFS, IFRS Campus Sertao and URI Integrated Regional University Brazil
Type: | Journal: Food chemistry | Year: 2016

This work investigates the extraction process of safflower oil using pressurized ethanol, and compares the chemical composition obtained (in terms of fatty acids) with other extraction techniques. Soxhlet and Ultrasound showed maximum global yield of 36.53% and 30.41%, respectively (70C and 240min). PLE presented maximum global yields of 25.62% (3mLmin(-1)), 19.94% (2mLmin(-1)) and 12.37% (1mLmin(-1)) at 40C, 100bar and 60min. Palmitic acid showed the lower concentration in all experimental conditions (from 5.70% to 7.17%); Stearic and Linoleic acid presented intermediate concentrations (from 2.93% to 25.09% and 14.09% to 19.06%, respectively); Oleic acid showed higher composition (from 55.12% to 83.26%). Differences between percentages of fatty acids, depending on method were observed. Results may be applied to maximize global yields and select fatty acids, reducing the energetic costs and process time.


Maule M.,Federal University of Rio Grande do Sul | Comba J.L.D.,Federal University of Rio Grande do Sul | Torchelsen R.P.,UFFS | Bastos R.,Nvidia
Computers and Graphics (Pergamon) | Year: 2011

Transparency is an important effect for several graphics applications. Correct transparency rendering requires fragment-sorting, which can be more expensive than sorting geometry primitives, and can handle situations that might not be solved in geometry space, such as object interpenetrations. In this paper we survey different transparency techniques and analyze them in terms of processing time, memory consumption, and accuracy. Ideally, the perfect method computes correct transparency in real-time with low memory usage. However, achieving these goals simultaneously is still a challenging task. We describe features and trade-offs adopted by each technique, pointing out pros and cons that can be used to help with the decision of which method to use in a given situation. © 2011 Elsevier Ltd. All rights reserved.


Maule M.,Federal University of Rio Grande do Sul | Comba J.L.D.,Federal University of Rio Grande do Sul | Torchelsen R.,UFFS | Bastos R.,Nvidia
Computers and Graphics (Pergamon) | Year: 2014

Exact order-independent transparency (OIT) rendering is memory demanding because it requires per-pixel blending of an unknown number of fragments that need to be stored and sorted before compositing. In this paper, we describe the Dynamic Fragment Buffer (DFB) algorithm, which efficiently manages memory to perform correct compositing for pixels with varying numbers of fragments. We present a collection of experiments that illustrate the advantages of the DFB algorithm with respect to other OIT algorithms, and analyze the impact of the proposed variations. © 2013 Elsevier Ltd.

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