microtubule
microtubule A tubular structure, 15–25 nm in diameter, of indefinite length, and composed of subunits of the
protein tubulin. It occurs in large numbers in all
eukaryotic cells, either freely in the
cytoplasm, or as a structural component of
organelles (e.g.
cilia and
flagella). Microtubules appear to function in the motility of cells, the maintenance of cell shape, and the transport of materials within cells. In addition, they form part of the structure of the
mitotic spindle (responsible for the movement of
chromosomes during cell division), and have been implicated in sensory transduction in some receptor cells.
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Capacitors and single-phase compressors: tips on troubleshooting run capacitors. (refrigeration zone).
Magazine article from: Air Conditioning, Heating & Refrigeration News; 2/3/2003; ; 700+ words
; ...proficient understanding of capacitors. The run capacitor is one of two types...normally indicate a shorted capacitor. Some older capacitors had the potential to...metal casing of the capacitor. If these capacitors were incorrectly installed...
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Capacitors Tasked with Conserving Energy.(KEMET Corp.)
Magazine article from: Design News; 10/6/2008; 700+ words
; ...and smaller capacitors preserve battery life Capacitor manufacturers...electrolyte capacitors was designed...performance capacitor solution for...level ceramic capacitors that were designed...specification. The capacitor was developed...
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Capacitor anatomy 101.
Magazine article from: Air Conditioning, Heating & Refrigeration News; 10/29/1990; ; 700+ words
; Capacitor Anatomy 101 Capacitors have long been...correct replacement capacitor is not available, the value of two capacitors can be added by...with frequent capacitor failures due to...starting, two capacitors of half the required...
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Selecting capacitors for high-density circuit applications. (includes a related article on a super-dense capacitor)
Magazine article from: EDN; 12/20/1990; ; 700+ words
; ...real-world capacitors. Choosing a space-efficient capacitor that still meets...stressing a tantalum capacitor, some tantalum...provide their capacitors with an internal...function of the capacitor. Fused-tantalum capacitors may cost twice...
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Capacitors: Niobium Oxide capacitors in electronic applications.(Field Applications)
Magazine article from: ECN-Electronic Component News; 8/1/2004; ; 700+ words
; ...features. Niobium Oxide capacitor technology is designed...ILLUSTRATION OMITTED] These capacitors do not require high...Applications These capacitors can be used in DC...overly stress these capacitors. They are resistant...voltage than other capacitor technologies. They...
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Capacitors Get Smaller, More Energy Efficient.
Magazine article from: Design News; 10/8/2007; 700+ words
; ...are developing capacitors that can take the...CAP Merges Two Capacitor Technologies Design...designed a ceramic capacitor that mostly eliminates...These Flexisafe capacitors absorb shock and...effectively two capacitors in series within...protects the ceramic capacitor from low ...
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Buried capacitor analysis: the use of blind microvias--and multiples of vias--can help reduce the discharge time of sheet capacitors.(BURIED CAPACITANCE)
Magazine article from: Printed Circuit Design & Manufacture; 6/1/2006; ; 700+ words
; ...inner layer forms a sheet capacitor of approximately 500 pf per...replace the surface bypass capacitors with an internal alternative...properly designed buried sheet capacitor is an effective method for...dynamic properties of buried capacitors when incorporated into a PCB...
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Capacitor amplifier reduces ripple without dc loss.
Magazine article from: EDN; 6/6/1996; ; 700+ words
; ...effectiveness of small capacitors as ripple filters...introducing dc loss. Filter capacitors reduce ripple in power...constant voltage, but capacitor energy-storage and...This increase in capacitor effectiveness allows designs to use smaller capacitors to achieve lower ripple...
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Know your capacitors. (power supply design)
Magazine article from: EDN; 9/1/1989; 700+ words
; ...should de rate all capacitor specifications. Aluminum capacitors are used extensively...aluminum electrolytic capacitors, not all tantalum-capacitor vendors specify...significantly derate capacitor specifications. Ceramic capacitors are available...
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Choose capacitor types to optimize PC sound quality.(design feature)
Magazine article from: EDN Asia; 7/1/2007; ; 700+ words
; ...Large K-factor capacitors, such as those...a change in the capacitor's mechanical...input coupling capacitor, -3dB bandwidth...low-dielectric capacitors, the converse...for ac-coupling capacitors at amplifier inputs...materials decreases the capacitor's value. This...
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Capacitor
Encyclopedia entry from: The Gale Encyclopedia of Science
...direction, discharging the capacitor and partly or entirely...its two conductors. Capacitors take many shapes...a parallel-plate capacitor, which consists of...flash of light. (The capacitor is used because small...large numbers of small capacitors. For example, a typical...
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SIC 3675 Electronic Capacitors
Encyclopedia entry from: Encyclopedia of American Industries
...single type of capacitor in 2001, representing...percent of all capacitors by reported quantity...Horn defined capacitors and capacitance: "A capacitor is a device capable...first ceramic capacitor, in Italy. Ceramic capacitors can withstand...
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capacitor
Book article from: The Columbia Encyclopedia, Sixth Edition
capacitor or condenser...charge. Simple capacitors consist of two...capacitor to a capacitor of the same size...between the plates. Capacitors are used in many...devices. The main capacitor classifications...
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Kernet Corp.
Book article from: International Directory of Company Histories
...emerging in the capacitor industry, an understanding...insight into Kernet. Capacitors are among the most...by soldering the capacitor directly to the surface of the board. Capacitors used in the former...tech tantalum capacitors mushroomed during...in the tantalum capacitor business ...
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Capacitance
Encyclopedia entry from: The Gale Encyclopedia of Science
...voltage across a capacitor. This often considerable...be used later. Capacitors used as energy...discharge cycle of the capacitor in question. Inexpensive...amplifiers may use large capacitors to provide high...almost zero as a capacitor charges from a...voltage source. Capacitors ...
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