Determinação do fluxo de CO2 no norte do Pantanal mato-grossense

No Pantanal, existem diversas comunidades de espécies monodominantes, que servem como indicadores de mudanças ambientais. O estudo da dinâmica das trocas de CO2 entre essas comunidades e a atmosfera contribui para avaliar o funcionamento desses ecossistemas. Dessa forma, o objetivo deste trabalho foi determinar o fluxo de CO2 (Acf) de uma área monodominante de Cambará (Vochysia divergens Pohl) no norte do Pantanal. O fluxo de CO2 foi determinado por meio do método da razão de Bowen modificada. Para isso, utilizaram-se medidas de saldo de radiação, fluxo de calor no solo e gradientes de temperatura, umidade relativa e concentração de CO2 do ar realizadas em uma torre de 32 m, em uma área monodominante de Cambará. A concentração de CO2 ao longo do perfil vertical do dossel, durante o período noturno, foi maior nos dias de céu limpo. O Acf no dossel do Cambarazal foi positivo no período noturno e negativo no período diurno. Os maiores valores de Acf foram medidos nos dias de céu limpo, os quais foram 75% maiores do que em dias de céu parcialmente nublados

Determinação dos parâmetros da distribuição gama e média pluviométrica decendial para estações do estado de Mato Grosso

O estado de Mato Grosso está entre os maiores produtores de grãos do Brasil sendo responsável por parte das mercadorias que o país exporta, sendo estas dependentes das precipitações pluviométricas. Em virtude destes fatos no presente trabalho objetivou-se a utilização da Distribuição Gama (2 parâmetros) para a descrição probabilística dos totais decendiais de precipitação média em 43 estações, de modo a fornecer informações que permitam estimar a precipitação mínima esperada com uma determinada probabilidade. Observou-se que os valores de chuva apresentam elevada variabilidade espaço-temporal ao longo do estado. As estimativas do parâmetro de forma (γ) e de escala (β) variaram de 0,01 a 120,7 e de 0,01 a 336, respectivamente. Os parâmetros γ e β da Distribuição Gama podem ser utilizados para determinação de precipitação decendial esperada e os decêndios com maiores precipitações estão entre os meses de novembro a março, sendo o maior valor 186,2 mm no município de Aripuanã. As estações mais ao norte do estado apresentam os decêndios com as maiores precipitações, enquanto aquelas mais ao sul tiveram valores menores

20140402150657_IPCAM

Real operation scene This scene was recorded during a real Irradiation operation, more specifically during its final tasks (removing the irradiated sample). This scene was an extra recording to the script and planned ones. - Scene: Involved a number of persons, as: two operators, two personnel belonging to the radiological protection service, and the "client" who asked for the irradiation. Video file labels: "20140402150657_IPCAM": recorded by the right camera.Involved a number of persons, as: two operators, two personnel belonging to the radiological protection service, and the "client" who asked for the irradiation

"20140327182905_IPCAM"

Scenes for Spectrography experiment Scenes were recorded following the tasks involved in spectrography experiments, which are carried out in front of "J9" output radiadion channel, the latter in open condition. These tasks may be executed by one or two persons. One person can do the tasks, but requiring him to crouch in front of "J9" to adjust the angular position the experimental appartus (a crystal to bend the neutron radiation to the spectograph), and then to get up to verify data in a computer aside; these movements are repeated until achieving the right operational conditions. Two people may aid one another in such a way one remais crouched while the other remains still in front of the computer. They may also interchange tasks so as to divide received doses. Up to now, there are available two scenes with one person and one scene with two persons. These scenes are described in the sequel: - Scene 3: Comprises the scene with two persons performing spectography experiment. Video file labels: "20140327182905_IPCAM": recorded by the right camera.Comprises the scene with two persons performing spectography experiment

"20140326154755_IPCAM"

General simulated scenes These scenes followed a pre-defined script (see the Thesis for details), with common movements corresponding to general experiments. People go to or stand still in front of "J9", and/or go to the side of Argonauta reactor and come back again. The first type of movement is common during Irradiation experiments, where a material sample is put within the "J9" channel; and also during neutrongraphy or gammagraphy experiments, where a sample is placed in front of "J9". Here, the detailed movements of putting samples on these places were not reproduced in details, but only the whole bodies' movements were simulated (as crouching or being still in front of "J9"). The second type of movement may occur when operators go to the side of Argonauta to verify some operational condition. - Scene 2: Comprises one of the scenes with two persons. Both of them use clothes of dark colors. Both persons go to the side of Argonauta reactor and then come back and go out. Video file labels: "20140326154755_IPCAM": recorded by the left camera.Comprises one of the scenes with two persons. Both of them use clothes of dark colors. Both persons go to the side of Argonauta reactor and then come back and go out

20140326154754_IPCAM

General simulated scenes These scenes followed a pre-defined script (see the Thesis for details), with common movements corresponding to general experiments. People go to or stand still in front of "J9", and/or go to the side of Argonauta reactor and come back again. The first type of movement is common during Irradiation experiments, where a material sample is put within the "J9" channel; and also during neutrongraphy or gammagraphy experiments, where a sample is placed in front of "J9". Here, the detailed movements of putting samples on these places were not reproduced in details, but only the whole bodies' movements were simulated (as crouching or being still in front of "J9"). The second type of movement may occur when operators go to the side of Argonauta to verify some operational condition. - Scene 2: Comprises one of the scenes with two persons. Both of them use clothes of dark colors. Both persons go to the side of Argonauta reactor and then come back and go out. Video file labels: "20140326154754_IPCAM": recorded by the right camera.Comprises one of the scenes with two persons. Both of them use clothes of dark colors. Both persons go to the side of Argonauta reactor and then come back and go out