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PBX And VoIP Markets Dropped During The Second Quarter, But Some Manufacturers Bucked the Trend.
Business Wire
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October 7, 2002
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COPYRIGHT 2002 Business Wire. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Business Editors
BEDMINSTER, N.J.--(BUSINESS WIRE)--Oct. 7, 2002
Purchases of phone systems by businesses dropped abruptly in the second quarter of 2002, another indication that troubles in the IT industry persist.
According to The Eastern Management Group, a management and IT consulting firm, which reports the sales of phone systems on a quarterly basis, TDM sales, which make up the bulk of all PBXs and Key Telephone Lines sold in the US, fell by 4 percent in the second quarter compared to the first quarter, and by 10 percent compared to the same ...
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Capacitance Gauges Come of Age For Blown-Film Thickness Control.
Magazine article from: Plastics Technology
; ...technical advances, relatively inexpensive capacitance thickness gauges reportedly are now...variations. Another big step forward for capacitance gauges is the arrival of non-contact...quicker response to thickness variations. Capacitance gauges measure the ability of a plastic...
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The capacitance of a transmission line: there is a fundamental relationship between characteristic impedance, time delay and total capacitance. (No Myths Allowed).
Magazine article from: Printed Circuit Design & Manufacture
; ...impedance, its time delay and its total capacitance. This applies for every line, whether...impedance ([Z.sub.0]) or total capacitance (C)--then we can find the third...controlled impedance transmission line. The capacitance of the line is the capacitance between...
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Parasitic capacitance in embedded inductors.(EmbeddedPassivesUpdate)
Magazine article from: CircuiTree
; ...the interwinding fringing capacitance between adjacent windings...maybe plus some fringing) capacitance, as illustrated in Figure...crossover. The specific capacitances are 0.3 pF/[mm.sup...respectively. Fringing capacitance between layers is not important...
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Capacitance meter uses PLL for high accuracy.
Magazine article from: EDN
; ...Casebook described a circuit that provided capacitance measurements of 10 pF to 1 [micro...Figure 1 (pg 48) lets you measure capacitance from 10 pF to 10 [micro]F with high...input impedance and 1.7-pF input capacitance. It also has only 50 pA of input bias...
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Size accumulators using the capacitance method.(Motion Control)
Magazine article from: Hydraulics & Pneumatics
; ...gas charged. Parasitic capacitance is an important subject...characteristics. But deliberate capacitance will be explored here. The capacitance concept makes writing the...parasitic and deliberate capacitances can be combined easily...
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Advances in instrumentation for CV measurement. (measuring capacitance in semiconductor production)
Magazine article from: Solid State Technology
; ...sensitivity ends when interface trap capacitance is less than 1/10 of depletion layer capacitance [5]. Depletion layer capacitance also varies with band bending...bandgap energy. Depletion layer capacitances corresponding to midgap were...
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Phase compensation counteracts op-amp input capacitance. (bode plot analysis adds compensation capacitors to counteract poles and zeros caused by op amp input capacitance) (Tutorial)
Magazine article from: EDN
; ...represents the differential capacitance between the amplifier's...represent the common-mode input capacitance for each op-amp input to...two of the three input capacitances shunt the feedback network...the effects of the input capacitance. To examine the effects...
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Determination of the Combined Ventilation Factor and Capacitance for Ice Crystal Aggregates from Airborne Observations in a Tropical Anvil Cloud
Magazine article from: Journal of the Atmospheric Sciences
; ...dimensionless capacitance value was 1...relations and capacitances are compared...estimates of the capacitance of ice crystals by measuring the capacitances of metal analogs...modeled the capacitance of a multiarm...
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Austrian Inventor Develops Circuit with Variable Capacitance
News Wire article from: US Fed News Service, Including US State News
; ...has developed a circuit with variable capacitance and a method for operating a circuit with variable capacitance. According to the U.S. Patent...Office: "A circuit with variable capacitance includes a capacitance, wherein the...
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Discovery of quantum capacitance property.(GRAPHENE)
Newspaper article from: Advanced Ceramics Report
; ...fundamental property of graphene, known as quantum capacitance, using an electrochemical gate method. Capacitance is a material's ability to store energy. In classical physics, capacitance is limited by the repulsion of like electrical charges...
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