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Showing 1 to 20 of 647 for “"filament"”.
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Dynamics of Active Filament Systems
Aktive Filament-Systeme, wie zum Beispiel das Zellskelett, sind Beispiele einer interessanten Klasse neuartiger Materialien, die eine wichtige Rolle in der belebten Natur spielen. Viele wichtige Prozesse in lebenden Zellen wie zum Beispiel die Zellbewegung oder Zellteilung basieren auf dem …
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In-fiber semiconductor filament arrays
… a characteristic thickness breaks up into filament arrays during optical-fiber thermal drawing. This structural evolution occurs exclusively in the cross-sectional plane, while the uniformity along the axial direction remains intact. We demonstrate crystalline semiconductor nanowires by …
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Thick filament regulation of myocardial contraction
… the effects of sarcomere length and thick filament protein isoform expression on the contractile properties of single skinned cardiac myocytes. Myosin binding protein-C ablation (MyBP-C-\-) increases the rate of force development, loaded shortening velocity, and power output in mouse …
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Material properties of actin filament bundles
… to Limulus that decorates and crosslinks actin filaments into a crystalline bundle. Our goal is to reconstitute the structure of the acrosome using these two proteins in order to further elucidate the role of scruin in actin bundle crosslinking.A multi-scale approach is presented wherein the …
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Modeling of Thermoplastic Composite Filament Winding
Thermoplastic composite filament winding is an on-line consolidation process, where the composite experiences a complex temperature history and undergoes a number of temperature history affected microstructural changes that influence the structure's subsequent properties. These changes include …
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Thermionic emission from a recrystallized tungsten filament
… single crystal with {110} zone 8° to 10° off filament axis. Pecrystallization of the filament was achieved by the Robinson (27) method of heating treatment. The average <}>* and A* were found to be 4.485 ± 0.055 volts and 49 ± 16 amp per (cm deg)2 respectively. In the various crystallographic …
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Modelling of the filament-winding fabrication process
A stress model of the filament-winding fabrication process, previously implemented in a finite element program, was improved. Pre- and post-processing codes were developed to make the program easier and more efficient to use. A program which is used to design filament wound composite rocket motor …
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The Interaction of Cofilin with the Actin Filament
The regulation of filamentous actin: F-actin) production from the polymerization of globular actin: G-actin) within the cell is critical for many cell functions. Since actin is found in all cells, understanding how actin-binding-proteins: ABPs) bind and how their regulating mechanisms work is not …
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Theoretical aspects of motor protein induced filament depolymerisation
… interact with the cytoskeleton: a network of filamentous structures, e.~g.~ actin filaments and microtubules, which organises intracellular transport and largely determines the cell shape. These motor proteins are able to transduce the chemical energy, stored in ATP molecules, to do mechanical …
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MOLECULAR MECHANISMS OF ACTIN FILAMENT ASSEMBLY AND TURNOVER
Actin filaments are a universal cytoskeletal factor across the eukaryotic kingdom powering cellular locomotion, endocytosis, mechano-transduction, and many other essential cellular functions. This versatility stems primarily from the myriads of actin binding proteins (ABPs) that bind to and …
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Automated Manipulation for the Lotus Filament Winding Process
<p>The filament-winding process produces quality consistent composite parts for many industries. Filament winding allows for consistent quality parts by automating the winding process. A recent development of filament winding is the Lotus process. The Lotus process reverses conventional filament …
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Accuracy-speed relationships of a robotic filament winding cell.
… research and the development of a robot based filament winding cell. The cell was implemented using an industrial robot (ASEA IRB 6/2) and an in-house mandrel drive mechanism, both being coordinated by a personal computer. Filament winding is a process in which continuous fibres are placed on a …
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Additive manufacturing of glass using a filament fed process
… developed, Selective Laser Melting (SLM) and filament fed process.</p> <p>Semi-transparent parts were printed with SLM process. However, the filament fed process was found to be more robust and promising for printing optically transparent glass parts. Therefore, this dissertation is focused on …
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Sintering and Characterizations of 3D Printed Bronze Metal Filament
… Recently, 3D printing using metal filled filaments becomes available which uses PLA filaments filled with metal powders (such as copper, bronze, brass, and stainless steel). Although there are some studies on their printability, the detailed study of their sintering and characterizations …
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Assembly and localization of the intermediate filament protein, nestin
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1995.
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Actin-like filament A (AlfA) and AlfA-driven plasmid segregation
… and tubulin homologs in bacteria that can form filaments upon nucleotide binding and their involvement in various cellular processes including cell shape determination, cell division, and DNA segregation led to a reconsideration of the evolutionary history of life. Actin-like filament A (AlfA) …
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Filament-Assisted Chemical Vapor Deposition of Diamond and Its Mechanism
… films were deposited on various substrates by filament-assisted chemical vapor deposition (FACVD). Different experimental conditions were employed to determine the effects of parameters such as filament temperature, methane concentration in the starting gas, and substrate temperature on diamond …
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The continuous curing process for thick filament wound composite structures
… is supplied, for instance by tape laying or filament winding. The cure is initiated from one side by an external heat source after a small initial thickness has been built up. A cure front, which is the idealization of a thin reaction region, forms and propagates outwards as material lay-up …
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A joule heating mechanism for high-speed fused filament fabrication
… additive manufacturing, known as fused filament fabrication (FFF), is one the most accessible methods of rapid prototyping, capable of handling a wide variety of engineering thermoplastics. Productivity limitations hinder the further application of FFF to both prototyping and production. …
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