Materials Literature
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A 280GHz leaky wave antenna with broadside radiation is demonstrated by 13-unit-cell periodic composite right/left handed transmission line (CRLH-T-Line) in 65nm CMOS with stacking high-resistivity dielectric layer to enhance antenna radiation efficiency. The design is fabricated in CMOS 65nm process and verified by m…
The control of Diesel engine selective catalytic reduction (SCR) systems during low temperature operation is of great challenge due to the complicated urea-to-ammonia conversion process. The existing model-based SCR controls may fail to achieve their control objectives in the situation since most of them adopted SCR m…
This paper describes the partial discharge characteristics of magnet wire under high frequency AC voltage. At first, high frequency harmonics of the inverter surges are analyzed by Fourier analysis in the pulse modulation width control system of the 5 levels and 11 levels. Analytical result shows that the higher harmo…
This paper represents the continuation of a previous study regarding the prediction of critical flashover voltage of polluted and ice-covered insulators. An improved dynamic numerical model based on the finite element method for predicting both DC and AC critical flashover voltage of polluted porcelain and glass insul…
A cutia (Dasyprocta sp.) é um roedor silvestre com distribuição mundial. Atualmente, além de importante papel ecológico que exerce, está sendo utilizada como modelo em experimento animal. Estudos sobre a morfologia destes animais são importantes porque podem ser uma alternativa para o estudo de diversos processos pato…
Synthesising zinc oxide nanoparticles (ZnO-NPs) to get certain characteristics to be applied in Enhanced Oil Recovery (EOR) is still challenging to date. In this work, the importance of high surface area of ZnO nanoparticles as EOR agent was highlighted. A simulation on density of state (DOS), band structure and adsor…
Production of wood in Indonesia is no longer able to meet their need, which is opening an opportunity for study in material alternatives. Coconut fiber is very potential material for wood replacement composite, since its availability is abundant and its utilization is still low. Meanwhile, some factors have been studi…
The Mn-doped ZnS nanoparticles with T2d- F4̅3m cubic structure and an average crystalline size of about 16 nm were synthesized using the hydrothermal method at 220 °C for 15 h from Zn(CH3COO)2(0.1M), Mn(CH3COO)2(0.01M), and Na2S2O3(0.1 M) as the precursors. The appearance of characteristic photoemission bands of Mn2+(…
Tomato is one of the most important vegetable crops in Egypt and Tunisia. Fusarium crown and root rot (FCRR), caused by Fusarium oxysporum f. sp. radicis-lycopersici (Forl), is one of the most damaging soilborne disease of tomato and is becoming more common in commercial greenhouses. In the present study, effect of in…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Matthew B. Applegate, Mark A. Brenckle, Benedetto Marelli, Hu Tao, David L. Kaplan, and Fiorenzo G. Omenetto, "Silk: A Different Kind of "Fiber Optics"…
Results of X-band microwave surface impedance measurements of FeSe1−xTex very thin film are reported. The effective surface resistance shows appearance of peak at T ≤ Tc when plotted as a function of temperature. The authors suggests that the most well-reasoned explanation can be based on the idea of the changing orie…
Carbon nanotubes mixture (CNTM), synthesized by the pyrolysis of polypropylene (PP)/organically modified montmorillonite (OMMT) nanocomposites catalyzed by Ni2O3, was used as a filter additive to remove harmful compounds in mainstream cigarette smoke. CNTM is mainly composed of carbon nanotubes (CNTs) with a little am…
We report the structural, dielectric and leakage current properties of Co doped MgTiO3 thin films deposited on platinized silicon (Pt/TiO2/SiO2/Si) substrates by RF magnetron sputtering. The role of oxygen mixing percentage (OMP) on the growth, morphology, electrical and dielectric properties of the thin films has bee…
Study features of transients in the circuits of semiconductor generators of discharge pulses (GDP) using the mathematical models of nonlinear electro-spark load are shown. The electro-spark load was the layer of metal granules between the electrodes submerged in a dielectric liquid. Models of nonlinear electric resist…
The relationship between an electrical breakdown and a space charge accumulation in low-density polyethylene (LDPE) and cross-linked polyethylene (XLPE) was investigated under high dc stress using the pulsed electro-acoustic (PEA) measurement system with a circuit for an external current measurement. It has been found…
For advanced designing of end-winding insulation system of rotating machines, the experimental information on the potential distribution on such stress grading system under the application of PWM voltage is essential. In this paper, the potential distributions on the stress grading system of a model coil under various…
Cross linked polyethylene (XLPE) is used in an electric power cable as insulation materials. The maximum thickness of XLPE layer is 27mm in a 500kV class electric power cable. The pulsed electro acoustic (PEA) method is widely used to measure space charge distribution in dielectric materials. When measuring the space…
On-line partial discharge (PD) measurement is now widely applied to motors rated 6 kV and above that are fed from the 50/60 Hz power system. However, during the past several years, many motors are being powered from inverters which facilitate variable speed motors to improve process efficiencies. One of the drives now…
Studies on the use of silicate correctives in agriculture show that they have great potential to improve soil chemical characteristics, however, little information is available on the reactivity rates of their particle-size fractions. This study investigated whether the reactivity rates obtained experimentally could b…
Graphene has been studied extensively owing to its unique two dimension structure, high conductivity, superior electron mobility, and extremely high specific surface area. The prompt progress in the applications of graphene over the past several years has resulted in remarkable achievements in a range of fields, such…