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"Garibaldi, Jose"
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Captain Underpants and the invasion of the incredibly naughty cafeteria ladies from outer space (and the subsequent assault of the equally evil lunchroom zombie nerds) : the third epic novel
Only Captain Underpants can stop the three evil space aliens who have invaded Jerome Horwitz Elementary School and turned everyone into lunchroom zombie nerds.
Book
A new tunable bandstop filter square-ring resonator using varactor diodes
This work presents the development of a bandstop filter with a tunable response. Varactor diodes are used as control elements. Studies and investigations demonstrate the influence of the variable capacitance on the input admittance and on the S-parameters frequency responses of the proposed square-ring resonator geometry. The design of the square-ring resonator is based on mathematical modeling of ideal transmission lines, considering parameters of characteristic admittance and electrical length for odd and even excitation modes. Based on S-parameters in ports, an equivalent circuit model of the resonator geometry is presented. The corresponding results are compared with numerical simulations. Comparative analyses are presented in order to guide the process of optimizing the physical dimensions of the layout. A prototype with dimension 0.0272
λ
g
2
was designed, fabricated, and tested. As a measured result, a filter with two rejection bands was obtained, the first at 0.6–1.15 GHz and the second at 1.71–2.28 GHz, with 63.0 and 29.0% tuning range, respectively. In comparison with bandstop filters from the literature, the proposed reconfigurable filter presents a larger tuning range for the first band, sufficient inband rejection levels for several applications, and reduced physical dimensions. The proposed configuration is an attractive reconfigurable filtering device for use in modern communication systems operating below 3.0 GHz.
Journal Article
Grime and punishment
\"When Dog Man gets fired by the mayor, he needs his friends' help to combat a new threat\"-- Provided by publisher.
Determination of dielectric properties of plaster blocks for sealing masonry using non-destructive frequency scanning methods
With the increasing use of traditional and new models of wireless communication systems, the study and determination of the electrical characteristics of materials used in civil construction is an important topic to establish an understanding of how the radio frequency signal behaves inside built environments. This study presents an extensive process of characterization of electrical parameters of plaster blocks used in the construction of walls. Different from the literature where a prior estimation of the data occurs to enable sampling parameters to be obtained, this work proposes an innovative way of obtaining them entirely based on the analysis of the material through frequency measurements, which results in a greater level of precision of the data results. Analyses are made in the frequency range from 0.7 to 5.2 GHz, which has been used for several wireless communication standards. To carry out the electrical characterization of dielectric materials, a non-invasive methodology is proposed based on an innovative combination of the Nicolson–Ross–Weir Method (NRW) and the Ray Tracing Method. Through the proposed methodology and an extensive campaign of measurements using frequency scanning equipment, calculated and experimental data of Shielding Effectiveness (SE), complex relative electrical permittivity, loss tangent, attenuation coefficient and conductivity were obtained for a wide range of frequency, considering different samples of plaster blocks. The obtained results are compared to those available in the related literature, confirming the accuracy of the proposed analysis.
Journal Article
Dog Man
Dog Man, a crimefighter with the head of a police dog and the body of a policeman, faces off against his archnemesis Petey the Cat.
Collaborations
\"Naomi, Melvin, Flippy, Li'l Petey, Molly, and nineteen baby frog siblings return in a new book in the hilarious and heartwarming Cat Kid Comic Club series\"-- Provided by publisher.
Twenty thousand fleas under the sea
\"Piggy is back, and his newest plot is his most diabolical yet. Dog Man and friends must join together in this heroic and hilarious adventure. WHAT new villains are on the horizon? WHERE are they all coming from? And WHO will step forward to save the city when scoundrels sabotage the Supa Buddies?\"-- Provided by publisher.