Microengineering Aerospace Systems
... diaphragm in the case of the pressure sensor and a suspension beam for many accelerometers). These micromechanical parts were fabricated by selectively etching areas of the Si substrate away to leave behind the desired geometries. Hence, the term “micromachining” came into use around 1982 to designa ...
... diaphragm in the case of the pressure sensor and a suspension beam for many accelerometers). These micromechanical parts were fabricated by selectively etching areas of the Si substrate away to leave behind the desired geometries. Hence, the term “micromachining” came into use around 1982 to designa ...
Mechanical Properties of Pedal Mucus and Their Consequences for
... (Grenon and Walker, 1980; Denny, 1983). As one might expect from this composition pedal mucus behaves as a slightly elastic liquid rather than as the slightly viscous solids such as collagen and bone with which we are more familiar. Because of the primarily viscous, and therefore time dependent, nat ...
... (Grenon and Walker, 1980; Denny, 1983). As one might expect from this composition pedal mucus behaves as a slightly elastic liquid rather than as the slightly viscous solids such as collagen and bone with which we are more familiar. Because of the primarily viscous, and therefore time dependent, nat ...
in Nanotube Walls - American Chemical Society
... 105, 108, 311, and 315 during their preparation. Preparation of PVDF Nanotubes. The apparatus used for the preparation procedure consisted of an oven with a cylindrical inner space that was operated by an Eurotherm V2604 temperature controller. The temperature profiles of all experiments were record ...
... 105, 108, 311, and 315 during their preparation. Preparation of PVDF Nanotubes. The apparatus used for the preparation procedure consisted of an oven with a cylindrical inner space that was operated by an Eurotherm V2604 temperature controller. The temperature profiles of all experiments were record ...
Visualization of Seifert Surfaces
... χc = 2 − 2gc , with gc the genus of the closed surface. This leads to gc = 2gs + m − 1. This gives us a direct way of finding oriented closed surfaces in which to embed a knot or link of genus gs such that the knot divides it into two parts. For instance, for a trefoil or figure eight knot a genus 2 ...
... χc = 2 − 2gc , with gc the genus of the closed surface. This leads to gc = 2gs + m − 1. This gives us a direct way of finding oriented closed surfaces in which to embed a knot or link of genus gs such that the knot divides it into two parts. For instance, for a trefoil or figure eight knot a genus 2 ...
Properties of Oxide Surfaces
... Starting from the close-packed fcc and lncp array, one can realize the structure of oxides \¡¡ith different stoichiometry and coordination by filling the interstitial sites appropriately. The most important classes of oxide crystal structures and typical examples are summal.ized in Table L5. 1. A 1: ...
... Starting from the close-packed fcc and lncp array, one can realize the structure of oxides \¡¡ith different stoichiometry and coordination by filling the interstitial sites appropriately. The most important classes of oxide crystal structures and typical examples are summal.ized in Table L5. 1. A 1: ...
4. Properties and Characterization of Thin Films
... To make sure that coatings which were produced by a given process satisfy the specified technological demands a wide field of characterization, measurement and testing methods is available. The physical properties of a thin film are highly dependent on their thickness. The determination of the film ...
... To make sure that coatings which were produced by a given process satisfy the specified technological demands a wide field of characterization, measurement and testing methods is available. The physical properties of a thin film are highly dependent on their thickness. The determination of the film ...
Cao-Wang - Physical Chemistry of Solid Surfaces - Chapter 2 of Nanostrcutures and Nanomaterials.
... the interior to the surface of nanostructures and nanomaterials. At the individual nanostructure level, there are two approaches to the reduction of the total surface energy. One is to reduce the overall surface area, assuming the material is entirely isotropic. Water on a hydrophobic surface always ...
... the interior to the surface of nanostructures and nanomaterials. At the individual nanostructure level, there are two approaches to the reduction of the total surface energy. One is to reduce the overall surface area, assuming the material is entirely isotropic. Water on a hydrophobic surface always ...
The Coating Inspectors Handbook - M
... Engineers, Consultants, Managers, Contractors, all may have coatings inspection training, but in addition to being a coating inspector, bring other perspectives to the job. Many of these individuals may get involved with the inspections of coatings during applications, but often have a different rol ...
... Engineers, Consultants, Managers, Contractors, all may have coatings inspection training, but in addition to being a coating inspector, bring other perspectives to the job. Many of these individuals may get involved with the inspections of coatings during applications, but often have a different rol ...
Comprehensive investigation of sequential plasma activated Si/Si
... two factors, dispersion γ d and polar γ p components, which determine the surface energy. The higher the polar contribution (γ p ) to the surface energy, the better the wettability of a polar liquid like water [29]. While the presence of Si–N bonds on the N2 MW radical treated surface leads to a hig ...
... two factors, dispersion γ d and polar γ p components, which determine the surface energy. The higher the polar contribution (γ p ) to the surface energy, the better the wettability of a polar liquid like water [29]. While the presence of Si–N bonds on the N2 MW radical treated surface leads to a hig ...
How to teach friction: Experiments and models
... particular conditions of use. The study of friction has a long history, as well as recent developments, and many issues have yet to be resolved.5 It represents a good example of the interface between abstract and formal theories and the reality of daily experience. We are impressed by the complexity ...
... particular conditions of use. The study of friction has a long history, as well as recent developments, and many issues have yet to be resolved.5 It represents a good example of the interface between abstract and formal theories and the reality of daily experience. We are impressed by the complexity ...
Analysis of forming thin titanium panels with stiffeners
... Titanium is one of the key metal materials used in the aviation industry. It is applied both as commercially pure titanium [1,2] and titanium alloys [3-5]. Commercially pure titanium is used for less demanding structural components which are not required to be so highly mechanically strong, but are ...
... Titanium is one of the key metal materials used in the aviation industry. It is applied both as commercially pure titanium [1,2] and titanium alloys [3-5]. Commercially pure titanium is used for less demanding structural components which are not required to be so highly mechanically strong, but are ...
Unusual bismuth-containing surface layers of III-V compound
... Since the invention of a bipolar transistor in 1947 by Bardeen and Brattain, which was the rst observation of an ampli cation of the input signal in a point contact, the semiconductor industry has exploded into a largest industry in the world: the electronic industry. The electronic devices are lar ...
... Since the invention of a bipolar transistor in 1947 by Bardeen and Brattain, which was the rst observation of an ampli cation of the input signal in a point contact, the semiconductor industry has exploded into a largest industry in the world: the electronic industry. The electronic devices are lar ...
Comparison between High-Velocity-Air-Fuel- (HVAF) and Cold
... can be found to apply metals, oxides, ceramics, cermets, nitrides, carbides and also polymers [1] for wear and corrosion applications[1]. Every member of the thermal spray family propels more or less molten feedstock-particles towards a prepared surface where the so-called splats quench and rapidly ...
... can be found to apply metals, oxides, ceramics, cermets, nitrides, carbides and also polymers [1] for wear and corrosion applications[1]. Every member of the thermal spray family propels more or less molten feedstock-particles towards a prepared surface where the so-called splats quench and rapidly ...
View paper - Andrew J. Gellman Research Group
... understanding of the real structure of these naturally chiral surface comes from simulations of thermal roughening effects on Pt(643) surfaces. These simulations indicate that thermal roughening leads to structures similar to that shown in the inset of Figure 2 15,17,18. Atoms diffuse along step edg ...
... understanding of the real structure of these naturally chiral surface comes from simulations of thermal roughening effects on Pt(643) surfaces. These simulations indicate that thermal roughening leads to structures similar to that shown in the inset of Figure 2 15,17,18. Atoms diffuse along step edg ...
A Study of Nail-Head Spicule Inclusion in Natural Gemstones
... summarized in table 2. In all cases, these were consistent with those reported in the gemological literature for natural samples of each material. Sapphire (Specimen 1). Viewed with magnification, this stone exhibited many crystalline inclusions and some elongate inclusions, mainly concentrated alon ...
... summarized in table 2. In all cases, these were consistent with those reported in the gemological literature for natural samples of each material. Sapphire (Specimen 1). Viewed with magnification, this stone exhibited many crystalline inclusions and some elongate inclusions, mainly concentrated alon ...
Multi-Level Partition of Unity Algebraic Point Set Surfaces
... where at each step the point is projected onto a polynomial approximation of the neighboring data, and the polynomial approximation is fitted from a local reference plane computed by a non-linear optimization. PSS also has been applied in geometry modeling. Pauly et al.[11] introduced a point-based ...
... where at each step the point is projected onto a polynomial approximation of the neighboring data, and the polynomial approximation is fitted from a local reference plane computed by a non-linear optimization. PSS also has been applied in geometry modeling. Pauly et al.[11] introduced a point-based ...
Modern Surface Science and Surface Technologies: An Introduction
... that take place on surfaces during chemical reactions has eluded surface scientists until recently. There are many techniques for studying external surfaces on the molecular level in UHV, or at low pressures in the range of 10-9-10-5 Torr. Those that are most widely used utilize electron or ion scat ...
... that take place on surfaces during chemical reactions has eluded surface scientists until recently. There are many techniques for studying external surfaces on the molecular level in UHV, or at low pressures in the range of 10-9-10-5 Torr. Those that are most widely used utilize electron or ion scat ...
3Basic Polymer Chemistry
... In ancient times, people used copper, gold, iron and clay for their daily needs, which were found in their natural form in the earth. However, as time passed and technology advanced, people needed to make goods that were strong, malleable, durable, practical and cheap. Materials with these propertie ...
... In ancient times, people used copper, gold, iron and clay for their daily needs, which were found in their natural form in the earth. However, as time passed and technology advanced, people needed to make goods that were strong, malleable, durable, practical and cheap. Materials with these propertie ...
Full paper - International Journal on Smart Sensing and
... A. Fuchs and H. Zangl, Observations And Restrictions For Tracking Indices Measurement In Materials Testing ...
... A. Fuchs and H. Zangl, Observations And Restrictions For Tracking Indices Measurement In Materials Testing ...
Planar Interconnection Technology for LSI Fabrication Utilizing Lift
... higher yields in fabricating LSI's. The technique makes use of the ECR plasma deposition method and a lift-off process. The deposition method is suited for the lift-off process, because of its directional deposition properties and low temperature deposition. The surface planarization process yields ...
... higher yields in fabricating LSI's. The technique makes use of the ECR plasma deposition method and a lift-off process. The deposition method is suited for the lift-off process, because of its directional deposition properties and low temperature deposition. The surface planarization process yields ...
Use of Nanotechnology in Reduction of Friction and Wear
... crucial role which cannot be achieved by either components alone since composite material is derived from a combination of properties. The improvement of nanocomposites showing high tribological features requires a deep investigation on their microto-nanostructure, aiming to find synergistic mechani ...
... crucial role which cannot be achieved by either components alone since composite material is derived from a combination of properties. The improvement of nanocomposites showing high tribological features requires a deep investigation on their microto-nanostructure, aiming to find synergistic mechani ...
Surface Tension in Pharmaceutical Dosage Forms
... surface tension can be calculated from the pressure maximum (4). In order to meet challenges and develop new and better performing pharmaceutical products, knowledge of surface tension is of utmost importance. Applications of surface tension in pharmaceutical industry, namely pharmaceutical products ...
... surface tension can be calculated from the pressure maximum (4). In order to meet challenges and develop new and better performing pharmaceutical products, knowledge of surface tension is of utmost importance. Applications of surface tension in pharmaceutical industry, namely pharmaceutical products ...
Outstanding properties of Silicon Carbide
... lower pressure and consists in immersing the substrate in a gas flow. Once gas particles are absorbed on the substrate, they react with one another to form a film of the material. The properties of the final films such as porosity highly depend on the temperature and pressure of deposition. A chemic ...
... lower pressure and consists in immersing the substrate in a gas flow. Once gas particles are absorbed on the substrate, they react with one another to form a film of the material. The properties of the final films such as porosity highly depend on the temperature and pressure of deposition. A chemic ...
4.1.5 hydrophilic coating materials
... The best hydrophilic properties were achieved both by the use of anionic surfactants, which are chemically bound to the hydrophilic network, and non-ionic surfactants, which remain diffusible in the matrix. The coatings show excellent adhesion on different substrates (glass, polycarbonate, polyester ...
... The best hydrophilic properties were achieved both by the use of anionic surfactants, which are chemically bound to the hydrophilic network, and non-ionic surfactants, which remain diffusible in the matrix. The coatings show excellent adhesion on different substrates (glass, polycarbonate, polyester ...
Synthetic setae
Synthetic setae emulate the setae found on the toes of a gecko and scientific research in this area is driven towards the development of dry adhesives. Geckos have no difficulty mastering vertical walls and are apparently capable of adhering themselves to just about any surface. The 5-toed feet of a gecko are covered with elastic hairs called setae and the end of these hairs are split into nanoscale structures called spatulae (because of their resemblance to actual spatulas). The sheer abundance and proximity to the surface of these spatulae make it sufficient for van der Waals forces alone to provide the required adhesive strength. Following the discovery of the gecko’s adhesion mechanism in 2002, which is based on van der Waals forces, biomimetic adhesives have become the topic of a major research effort. These developments are poised to yield families of novel adhesive materials with superior properties which are likely to find uses in industries ranging from defence and nanotechnology to healthcare and sport.