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Chapter
Photocatalytic Activity of 3D Printed TiO2 Architectures Under Solar Radiation
The present study reports the production of 3D printed titanium dioxide (TiO2) macro-architectures to be employed as photocatalysts for water purification under solar radiation. These architectures, designed as a...
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Chapter and Conference Paper
Zinc Oxide Thin-Film Transistors
ZnO thin film transistors (ZnO-TFT) have been fabricated by rf magnetron sputtering at room temperature with a bottom-gate configuration. The ZnO-TFT operates in the enhancement mode with a threshold voltage o...
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Chapter
Transformation of a Labdane by an Enzymatic Treatment
Some synthesis of organic compounds can be made using enzymes instead of other reagents more aggressive for the environment. In this work we report the transformation of a labdene derivative 3β,l5-diacetoxylab...
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Chapter and Conference Paper
Low-Cost Visual Control for Handling and Assembly of Microsystems
An environment capable of on-line visual quality and motion control is presented. The resolution of the visual system is better than 3μm. The objects are held in a flexible paletting system and need not lie on...
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Chapter and Conference Paper
Efficient Algorithms for Three-Dimensional Etching and Deposition Simulation
The reduction of computing time without loss of accuracy is a very important task for three-dimensional process simulators. We present new approaches for fast and stable simulation of etching and deposition pr...
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Chapter and Conference Paper
Accurate Layout-Based Interconnect Analysis
We have developed a set of simulation programs for two- and three-dimensional analysis of interconnect structures. The simulators are based on the finite element method and can be used for highly accurate capa...
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Chapter and Conference Paper
Rigorous Capacitance Simulation of DRAM Cells
As dynamic RAM cell size is being scaled down, the storage capacitor design becomes more difficult because its capacitance cannot scale as much. The solutions are leading to complex structures which require an...
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Chapter
Produktionsintegrierter Umweltschutz in der Kunststoffindustrie
Produktionsintegrierter Umweltschutz (PIUS) in der kunststoffverarbeitenden Industrie bedeutet hauptsächlich Maßnahmen zur Verminderung, Vermeidung und Verwertung von Reststoffen umzusetzen. Reststoffe sind fe...
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Chapter and Conference Paper
Multi-Purpose PV Plant in Lisbon, Portugal
A 15.6 kWp PV plant with a variety of different consumer types and a novel load management scheme is described. It is designed to be able to operate in several stand-alone configurations and grid connected mode. ...
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Chapter and Conference Paper
The Role of the Reduction of ITO on the Electrical Properties of the p-i Junction: A Thin SiO Layer as a Remedy
The reduction of the ITO by the deposition of an a-Si:C:H p layer by means of a Plasma Enhanced Chemical Vapour Deposition (PECVD), is considerably diminished if a thin silicon monoxide layer (estimated to be ...
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Chapter and Conference Paper
Influence of the RF Power Density on the Electrical Properties of Glow-Discharge Amorphous Silicon
The optimization of the devices efficiency and their costs is an important request to promote the application of amorphous silicon thin films devices on industry. In this perspective, it is interesting to try ...
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Chapter and Conference Paper
Photoinduced Effects in Hydrogenated Amorphous Silicon
Photoinduced effects observed in ITO/a-Si:H/ITO structures are studied through the analysis of the J-V curves, in order to determine the role of interface in the structure performances. At the dark, the J-V cu...
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Chapter and Conference Paper
A-Si:H Ambipolar Diffusion Length and Effective Lifetime Measured by Flying Spot Technique (FST)
The determination of the ambipolar diffusion length, L*, and the effective lifetime, τ*, in p/i and a-Si:H Schottky barriers (ITO/p/a-Si:H/Al-Si; Cr/a-Si:H/Cr/Ag) have been determined by Flying Spot Technique,...
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Chapter
Principles of Rockfill Hydraulics
What should be understood by the term “rockfill hydraulics”?Obviously it is necessary to begin by defining “rockfill”. There is not, as is known, any single definition. It varies from author to author, varies ...
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Chapter and Conference Paper
Precursor of Alzheimer’s Disease (PAD) A4 Amyloid Protein
Alzheimer’s disease affects 1% of the population of the Western world and 100% of aged individuals with Down’s syndrome. It is characterized by neuronal dysfunction and depositions of. amyloid A4 protein (β-pr...
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Chapter and Conference Paper
The Molecular Basis of Cerebral Amyloidosis in Alzheimer’s Disease and the Unconventional Virus Diseases
The major protein subunit of the amyloid fibril in Alzheimer’s disease is a small molecule of 42 residues (termed A4). It is derived from a larger precursor (PreA4), the gene for which is located on chromosome...
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Chapter and Conference Paper
A Model for Analysis of Optical Measurements Carried on a-Si:H Films for Photovoltaic Applications
— A set of absorptance measurements have been performed on doped and undoped a-Si:H films prepared by r.f. glow discharge at different deposition conditions. In previous work123 we observed the role of the bias o...
