Materials Literature
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In a recent study, a hierarchical structure of coexistent nano- and microstructures induced high cellular activities, such as proliferation and differentiation. In this study, an easy and versatile method of generating a nano-sized patterned surface on a nonwoven mat of electrospun poly(e-caprolactone) (PCL) fibers is…
DSSCs (Dye Sensitized Solar Cells) show a very important value of characteristic capacity modifying their electrical characterization. The existence of a transient current related to this capacity and the scan speed, cause a difficult to fix the real current values under an I-V scan test. Generally, some test instruct…
본 연구에서는 반도체 소자의 Pressure Cooker Test (PCT) 실시 후 발생한 불량의 원인 규명에 대한 연구를 진행하였다. 소자의 PCT 처리 후 알루미늄 배선과 소자 층들 사이의 층간박리와 알루미늄의 화학적 구성 변화 등의 불량이 발생되었다. 다양한 물리적, 화학적 관찰 도구를 활용하여 분석 진행한 결과 알루미늄 패드에서 알루미늄의 손실이 발생하였고, Al x O y (Al₂O₃ 또는 Al(OH)₃)) 층이 비정상적으로 형성됨을 관찰하였다. 알루미늄 손실과 Al x O y 층 형성의 원인은 식각 공정 시 공급되는 F, Cl 가스와 침투된 수분의 반응…
Las fuentes radiactivas selladas se utilizan en muchas aplicaciones industriales, las mismas que luego de cumplir su vida útil deben de ser gestionadas como desechos radiactivos. Uno de los problemas más comunes de las fuentes radiactivas selladas en desuso es que en algunas oportunidades carecen de identificación y d…
This works developed chemical reactor network approach (CRN) with a short time and precise result to predict NOx emissions from a gas turbine rapidly and precisely to amend the defect of the computed time and precision with traditional CFD method for combustor designs. The chemical reactor network with 4 PSRs and 2 PF…
Introduction and aim: The article deals with the problem of the elastic cylindrical die pressure on the layer with initial stresses within the framework of linearized elasticity theory. In general, the research was carried out for the theory of great initial deformations and two variants of the theory of small initial…
Ferromagnetism in the one-dimensional Hubbard model with the next-nearest-neighbor hopping is explored by using the exact-diagonalization method in a small cluster and the equation-of-motion method in the thermodynamic limit with electron density n = 3/2. With these two complementary methods, it is found that an inter…
\n\t\t\t\t\t Corrosion inhibition mechanisms on the aerospace alloy, AA2024-T3, was investigated for the inhibitor combination of rare earth metals and mercaptoacetate. The inhibitor demonstrated synergistic protection for AA2024-T3 from localised corrosion. It is intended to be a more environmentally friendly alterna…
Ultra high pure Indium metal is extensively used in optoelectronic devices. Indium and its alloys become potential candidates in aerospace, defense and communication sectors. Purification of Indium has been done by Instrolec-200 Refiner followed by Directional Melting/ Freezing and Solidification Systems. Major target…
In the present paper, the author investigates some subordination and superordination -preserving properties for analytic functions associated with generalized multiplier transformations dened on the space of normalized analytic functions in the open unit disk U. Several Sandwich-type results associated with this trans…
The objective of this work is study the carbonation of reinforced steel in different solutions include artificial seawater (3.5% NaCl), river water and domestic water by electrochemical method at room temperature. Corrosion parameters were measured to calculate corrosion rates from polarization curves. Cyclic polariza…
Neolamarckia cadamba or locally known as Kelampayan, is one of the fast growing plantation tree \nspecies that holds great prospect as a renewable bioresources for plywood, pulp and paper, and biofuel \nindustries. Sufficient information on cellulose synthase (CesA) gene, especially the hypervariable region II \n(HVRI…
C ost effective control of biofouling is a challenging task in the hazardous environment, especially in the nuclear power plants and desalination plants. Biofouling control of plate heat exchangers was investigated extensively using osmotic shock and the effectiveness of the method was evaluated using microbiological…
1- Centre for Biotechnology, Anna University, Guindy, Chennai – 600 025, Tamil Nadu, India. 2- National Institute of Ocean Technology, MoES, Pallikaranai, Chennai - 600 100, Tamil Nadu, India. *[E-mail: s_anishetty@yahoo.co.uk , s_anishetty@annauniv.edu ] Received 27 June 2014; revised 25 August 2014 Byssal threads ma…
In the present work, the effects of additives, including contents of the added antioxidants and type of the selected metallic stearates (either calcium stearate (CaSt) or zinc stearate (ZnSt)), on the thermal stabilities of carbon black (CB)/high density polyethylene (HDPE) compounds were studied. The results showed t…
RESUME Pour une large gamme d’applications en ingenierie, allant des materiaux de conversion de l’energie thermoelectrique aux materiaux d’interface thermique, la conductivite thermique dans les structures a l’echelle nanometrique fut un sujet interessant et important a la fois dans la recherche fondamentale et appliq…
Los bacteriofagos son virus especificos que infectan exclusivamente a bacterias para multiplicarse en su interior, y cuando la celula bacteriana es incapaz de soportar mas particulas virales, sufre lisis celular produciendose la liberacion de nuevos virus capaces de infectar a mas bacterias. La terapia fagica (mediant…
Silicalite-1 membranes with high-thermal stability were prepared on silica tubes by two-step hydrothermal synthesis after filling the tubes with water and glycerol mixtures. It was found that the filling method can improve the membrane separation performance effectively. After filling the silica tubes with mixed solut…
Gas sensitivity of Sb-doped SnO2 nanograins co-precipitated respectively from ethanol and de-ionized water has been compared. Gas sensing stability of the Sb-SnO2 from ethanol (SnO2-E) was significantly superior to that of Sb-SnO2 from de-ionized water (SnO2-W): working temperature of sensor using SnO2-E was as high a…
Abstract Microstructural evolution in the thickness direction of an oxygen free copper processed by accumulative roll-bonding (ARB) is investigated by electron back scatter diffraction (EBSD) measurement. For the ARB, two copper alloy sheets1 mm thick, 30 mm wide and 300 mm long are first degreased and wire-brushed fo…