Materials Literature
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sobre o potencial energético de resíduos agroindustriais da região de Portalegre. Os ensaios foram realizados utilizando uma unidade piloto de gaseificação térmica de biomassa, de leito fluidizado borbulhante, às temperaturas de 750◦ C, 800◦ C e 850◦ C, com caudais mássicos de 30 kg/h, 40 kg/h e 60 kg/h. Os resultados…
Nb-based alloy has shown potential applications in next generation turbine engine with higher temperature endurance and load bearing performance. A special layered MAX phase Nb2AlC has good oxidation resistance at high temperature (1200K-2100K). In this report, we studied the potential Nb-based alloys for matching Nb2…
[[abstract]]本研究是以一般織物為基材取代ITO 軟板，先以網版刷方式在導電基底製圖，再利用精密塗佈製程(comma bar)依序於布上塗佈介電樹脂層(BT2100)、螢光層(GG24+ITK5517)以及透明導電層(導電高分子)，透過精密刮刀塗佈可控制各塗層之厚度以達到較佳之均勻度。本實驗之目的是以網版塗佈方式在銀膠製作圖案，並改變發光層之狹縫高度，觀察其厚度在通入外加交流電源(75、150、300VAC)對其發光亮度之影響。其中導電基底狹縫高度為40μm，介電樹脂狹縫高度為50μm，螢光層之狹縫高度分別為70、80、90μm，導電層則為20μm。由實驗結果得知，在螢光層狹縫高度為80μm 時並通入交流電壓150V 及…
Les supercapacités hybrides se taillent de plus en plus une place dans le secteur des énergies renouvelables. L’oxyde de manganèse possède certaines caractéristiques (faible coût, caractère écologique et une capacitance spécifique supérieure) qui font de ce dernier un matériau très attirant pour l’assemblage de tels d…
Dans cette thèse, nous présentons une nouvelle méthode smoothed particle hydrodynamics (SPH) pour la résolution des équations de Navier-Stokes incompressibles, même en présence des forces singulières. Les termes de sources singulières sont traités d'une manière similaire à celle que l'on retrouve dans la méthode Immer…
The purpose of this research is to explore the extent and significance of possible interacting factors on the viability of stored germplasm. Our work begins with characterizing the kinetics of TAG and water phase changes in peanut (Arachis hypogaea) and Papaya (Carica papaya) seeds equilibrated to different water cont…
Concebir las metodologías participativas desde la perspectiva sociopráxica permite plantear un modelo científicamente válido de investigación social, capaz de superar las dicotomías clásicas existentes entre los pares conocimiento teórico y práctico, y objeto y sujeto de investigación. En este artículo se da cuenta de…
Reducing symptom burden is paramount at the end-of-life, but typically considered secondary to risk factor control in chronic disease, such as diabetes. Little is known about the symptom burden experienced by adults with type 2 diabetes and the need for symptom palliation. To examine pain and non-pain symptoms of adul…
La gestión de la reputación digital empieza a ser asumida como una prioridad por las empresas, que observan como cada día más las redes sociales e Internet influyen en la imagen que se tiene de ellas. H&M y Zara, como líderes de ventas en el sector moda, no son una excepción. Las menciones en redes sociales así como s…
The evolution of television in our country has had like last stage the analogue switch off and the birth of multiple programs that nourish the offer of the Digital Television. In the present article we analyze the reconfiguration of the offer of Terrestrial Digital Television (TDT) in our country, after the approval o…
The symposium is an international prestigious researchers meeting focused on plastic deformation of materials and microstructural characterization, especially through the microtexture analysis. Therefore, the first day is devoted to plastic deformation (hot and cold) and creep analysis of materials. The second aims to…
This work involved the characterization of clays collected in the municipalities of São Luis, Rosário, Pinheiro and Mirinzal (state of Maranhão, Brazil), based on specific mass, specific surface area, cation exchange capacity (CEC), particle size distribution, X-ray diffraction (XRD), differential thermal analysis (DT…
Using an ab initio atomistic thermodynamics framework, we identify the stable surface structures during the early stages of Cu(100) oxidation at finite temperature and pressure conditions. We predict the clean surface, the 0.25 monolayer oxygen-covered surface, and the missing-row reconstruction as thermodynamically s…
Nanotechnology is the manipulation of matter and devices on the nanometer scale. Below the critical dimension length of 100nm, materials begin to display vastly different properties than their macro- or micro- scale counterparts. The exotic properties of nanomaterials may trigger the start of a new technological revol…
Change the duplicated TABLE II for TABLE III as follow bellow or change the following reformulated page.TABLE III -Classification of waste in accordance with CONAMA resolutions No. 358 and ANVISA RDC 306 Group AWaste with the possible presence of biological agents.This group is subdivided into 5 classes: A1, A2, A3, A…
Temperature (T g ) ....
The dielectric behavior of poly(vinyl alcohol) –PVA– crosslinked hydrogels obtained by the repeated freezing/ thawing (F/T) technique have been investigated by dielectric relaxation spectroscopy (DRS) and differential scanning calorimetry (DSC). The crosslinked polymer is produced by the clustering of chains caused by…
Abstract (italic typeface) Multi-walled carbon nanotubes (MWCNTs) array of about 40 nm in diameter and 500 to 1300 nm in length was directly grown on Au interdigitated electrodes by radio frequency plasma-enhanced chemical vapor deposition (RF-PECVD). The growth catalyst of Ni_3C-Ni at the tip of the MWCNTs array was…
Die Erfahrung zeigt, dass aus der Affinitaet eines Bindemittels zu Mineralstoffen nicht leicht auf das Verhalten des entsprechenden Asphaltes unter Praxisbedingungen geschlossen werden kann. Eine Validierung der Methode zur Bestimmung der Affinitaet ist deshalb wesentlich und eine Voraussetzung fuer das Festlegen von…
A document describes a high-performance thermal distribution panel (TDP) concept using high-conductivity (greater than 800 W/mK) macro composite skin with in situ heat pipes. The processing technologies proposed to build such a panel result in a one-piece, inseparable assembly with high conductance in both the X and Y…