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Diode Voltage Temperature Coefficient
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Coefficient of Thermal Expansion $73.28 High Quality Content by WIKIPEDIA articles All materials change their size when subjected to a temperature change as long as the pressure is held constant. In the special case of solid materials, the pressure does not appreciably affect the size of an object, and so for solids, it usually not necessary to specify that the pressure be held constant. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically, it measures the fractional change in volume per degree change in temperature at a constant pressure. The volumetric thermal expansion coefficient is the most basic thermal expansion coefficient. All substances expand or contract when their temperature changes, and the expansion or contraction always occurs in all directions. Substances that expand at the same rate in any direction are called isotropic. Unlike gases or liquids, solid materials tend to keep their shape. For solids, one might only be concerned with the change along a length, or over some area. Expansion coefficients are specially defined for these cases, and they are known as the linear and area expansion coefficients. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 76 Publication Date: 2010/09/29 Language: English Dimensions: 5.98 x 9.01 x 0.18 inches |
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1.9' LCD Handheld Digital Multimeter (Voltage + Current + Resistance + Temperature/ 1*6F22) $17.1 - Professional fully featured handheld digital multimeter- It measures AC/DC voltage, resistance, diode check, transistor hFE test and etc.- Display: maximum reading 1,999- DC voltage: 200mV~600V0.8%- AC voltage: 200V~600V1.2%- DC current: 200~10A3.0%- Resistance: 200O~2MO0.8%- Temperature: -20C~1000C3.0% (C/F selection)- Powered by 1*6F22 battery (included)- Comes with a pair of test leads |
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3.0' LCD Handheld Digital Multimeter (Voltage + Current + Resistance + Temperature/ 2*AAA) $32.3 - Professional fully featured handheld digital multimeter- It measures AC/DC voltage, resistance, diode check, transistor hFE test and etc.- Display: maximum reading 6,000- DC voltage: 600mV~1000V- AC voltage: 6V~1000V- DC current: 600~20A- Resistance: 600O~60MO- Temperature: -40C~1000C/0?~1832?(C/F selection)- Powered by 2*AAA battery (included)- Comes with a pair of test leads |
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1.9' LCD Palm-Size Digital Multimeter (Voltage + Current + Resistance + Temperature/ 1*6F22) $14.3 - Professional fully featured palm-size digital multimeter- It measures AC/DC voltage, resistance, diode check, temperature and etc.- Display: maximum reading 1,999- DC voltage: 200mV~500V (+/-0.5%+2)- AC voltage: 200V~500V (+/-1.2%+10)- DC current: 2000mA~10A (+/-1.0%+2)- Resistance: 200W~20MW (+/-0.8%+2)- Temperature: -40'C ~ 1000C (+/-1.0%+3) / -40'F ~ 1832'F (+/-1.0%+4)- Powered by 1*6F22 battery (included)- Comes with a pair of test leads and temperature probes |
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Fluke HVAC Multimeter with Temperature and Microamps $236.95 Built-in thermometer for HVAC applications Microamps to test flame sensors LoZ: helps prevent false readings due to ghost voltage Large white LED backlight to work in poorly lit areas Resistance, continuity, frequency and capacitance Min/Max/Average with elapsed time to record signal fluctuations Compact ergonomic design for one-handed operation Compatible with optional magnetic hanger (ToolPak) Specifications: CAT III 600 V safety rated Volts AC/DC: 600V Current AC/DC: 10A Temperature: +400 ?C Resistance: 50kHz Capacitance: 1 nF to 9,999 uF Frequency: 5Hz to 50 kHz Diode: 2V Includes: TL75 Test Leads 80BK Integrated Temperature Probe Holster User?s manual 9V battery (installed) |
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PyleHome PDMT25 Digital Multimeter with Voltage#44; Current#44; Resistance#44; Duty Cycle#44; Temperature#44; Frequency#44; and Capacitance $233.99 4000 Display Count. Peak Capture Mode. Data Hold. Max/Min Recording Mode. Voltage DC: Max Range 1000 V Accuracy +/ 0.5. Voltage AC: Max Range 1000 V Accuracy +/ 0.8. Current DC: Max Range 10 A Accuracy +/ 1.2. Current AC: Max Range 10 A Accuracy +/ 1.8. Resitance: Max Range 40 MO Accuracy +/ 0.8. Duty Cycle: Max Range 99.9 Accuracy +/ 1.2. Temperature: Max Range 760 C / 1400 F Accuracy +/ 3.0. Frequency: Max Range 10 MHz Accuracy: +/ 1.5. Capacitance: Max Range 40 mF Accuracy +/ 1.5. Diode Check. Continuity Test. Accessories Included: Test Leads 9V Battery KType Temperature Probe. Dimensions: 7.16 H x 3.23 W x 2.17 D. |
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Coefficient of Relationship $68.51 High Quality Content by WIKIPEDIA articles High Quality Content by WIKIPEDIA articles In population genetics, Sewall Wrights coefficient of relationship or coefficient of relatedness or relatedness or r is defined as 2 times the coefficient of kinship. The coefficient of kinship is defined as the probability that the alleles at a particular locus chosen at random from two individuals are identical by descent. For example, in a diploid species (e.g. all mammals), the coefficient of relationship between parent and offspring is 0.5, meaning half of the offsprings genome comes from that parent. Or, more precisely said, half the genes are identical by descent. Some other relatedness examples: (assuming no consanguinity, for diploid species unless noted otherwis). Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 80 Publication Date: 2010/07/09 Language: English Dimensions: 5.98 x 9.01 x 0.19 inches |
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Differential Coefficient $60.54 In mathematics, the differential coefficient of a function f(x) is what is now called its derivative df(x)/dx, the (not necessarily constant) multiplicative factor or coefficient of the differential dx in the differential df(x). A coefficient is usually a constant quantity, but the differential coefficient of f is a constant function only if f is a linear function. When f is not lineive#Differen, hence, the modern term, derivative. Early editions of Silvanus P. Thompsons Calculus Made Easy use the older term. Martin Gardner lets the first use of differential coefficient stand, along with Thompsons criticism of the term as a needlessly obscure phrase that should not intimidate students, and substitutes derivative for the remainder of the book. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 74 Publication Date: 2010/08/04 Language: English Dimensions: 6.00 x 9.02 x 0.18 inches |
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Transmission Lines and Schottky Diode $108.33 A nonlinear relation between current and voltage for schottky resonant tunneling diode is used. A general form of equation similar to VanDer Pol equation is obtained. A Resonant tunneling diode(RTD) has a negative differential resistance that means when the voltage increases the current decreases. This property is very useful for oscillators manufacture. Nonlinear transmission lines is considered to show that it canbe used in oscillators and to show that it can reshape the sinusoidal signals to othershapes by using OrCad and mathematica programming. Author: ElKhozondar, Hala J./ ElKhozondar, Rifa J./ Abo Ireban, Ibtisam Binding Type: Paperback Number of Pages: 80 Publication Date: 2011/07/12 Language: English Dimensions: 9.02 x 5.98 x 0.19 inches |
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Pressure Coefficient $84.44 High Quality Content by WIKIPEDIA articles The pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics. The pressure coefficient is used in aerodynamics and hydrodynamics. Every point in a fluid flow field has its own unique pressure coefficient, Cp. In many situations in aerodynamics and hydrodynamics, the pressure coefficient at a point near a body is independent of body size. Consequently an engineering model can be tested in a wind tunnel or water tunnel, pressure coefficients can be determined at critical locations around the model, and these pressure coefficients can be used with confidence to predict the fluid pressure at those critical locations around a fullsize aircraft or boat. The pressure coefficient is a very useful parameter for studying the flow of incompressible fluids such as water, and also the lowspeed flow of compressible fluids such as air. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 108 Publication Date: 2010/09/30 Language: English Dimensions: 5.98 x 9.01 x 0.25 inches |
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Coefficient of Performance $60.54 High Quality Content by WIKIPEDIA articles The coefficient of performance or COP, of a heat pump is the ratio of the change in heat at the output to the supplied work. The COP for heating and cooling are thus different, because the heat reservoir of interest is different. When one is interested in how well a machine cools, the COP is the ratio of the heat removed from the cold reservoir to input work. However, for heating, the COP is the ratio of the heat removed from the cold reservoir plus the heat added to the hot reservoir by the input work. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/12/23 Language: English Dimensions: 6.00 x 9.02 x 0.16 inches |
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Standardized Coefficient $58.94 High Quality Content by WIKIPEDIA articles In statistics, standardized coefficients or beta coefficients are the estimates resulting from an analysis performed on variables that have been standardized so that they have variances of 1. This is usually done to answer the question of which of the independent variables have a greater effect on the dependent variable in a multiple regression analysis, when the variables are measured in different units of measurement (for example, income measured in dollars and family size measured in number of individuals). Before fitting the multiple regression equation, all variables (independent and dependent) can be standardized by subtracting the mean and dividing by the standard deviation. The standardized regression coefficients, then, represent the change in terms of standard deviations in the dependent variable that result from a change of one standard deviation in an independent variable. Some statistical software packages like PSPP/SPSS report them automatically, labeling them Beta while the ordinary unstandarized coefficients are labeled B. Others, like DAP/SAS, provide them as an option and label them Standardized Coefficient. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 72 Publication Date: 2010/08/14 Language: English Dimensions: 6.00 x 9.02 x 0.17 inches |
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Road Pro Digital Compass with Temperature and Voltage Meter $40.95 The all-in-one Digital Compass provides you with directions to help you get to your destination, the temperature inside and outside your vehicle, a digital voltage meter and a flashing LED/Beep Alarm to warn you of any icy road conditions. It even comes with a 3-level battery condition meter to alert you when you have to change the batteries. This all-in-one Digital Compass is a must have for every vehicle. Features: Direction display is in both Cardinal Points (N, S, E, W) and Numeric Digits Digital voltage meter Directional compass arrow Displays the inside and outside temperatures Celsius or Fahrenheit selectable temperature display 3-level battery condition meter Anti-glare hood Easy to set auto calibration Flashing LED/Beep Alarm warns of icy road conditions Includes a long-life battery and self adhesive tape for quick mounting Caution: To avoid personal injury, do not install this or any accessory on or near air bags |
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Voltage Doubler $54.86 High Quality Content by WIKIPEDIA articles A voltage doubler is an electric circuit with an AC input and a DC output of roughly twice the peak input voltage. They are a variety of voltage multiplier circuit and are often, but not always, a single stage of a general form of such circuits. The term is usually applied to circuits consisting of rectifying diodes and capacitors only, other means of doubling voltages are not included.The Villard circuit consists simply of a capacitor and a diode. While it has the great benefit of simplicity, its output has very poor ripple characteristics. Essentially, the circuit is a diode clamp circuit. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/07/14 Language: English Dimensions: 6.00 x 9.00 x 0.16 inches |
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Heat Transfer Coefficient $81.25 The heat transfer coefficient, in thermodynamics and in mechanical and chemical engineering, is used in calculating the heat transfer, typically by convection or phase change between a fluid and a solid: From the above equation, the heat transfer coefficient is the proportionality coefficient between the heat flux, Q/, and the thermodynamic driving force for the flow of heat. The heat transfer coefficient has SI units in watts per meter squaredkelvin. Heat transfer coefficient is the inverse of thermal insulance. There are numerous methods for calculating the heat transfer coefficient in different heat transfer modes, different fluids, flow regimes, and under different thermohydraulic conditions. Often it can be estimated by dividing the thermal conductivity of the convection fluid by a length scale. The heat transfer coefficient is often calculated from the Nusselt number. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 82 Publication Date: 2009/11/24 Language: English Dimensions: 5.98 x 9.01 x 0.19 inches |
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Digital Temperature TL8009 Black $4.39 Overview:Measuring Temperature Range:-50℃~-70℃Temperature Accuracy: ±1℃Temperature Display Resulution:0.1℃Operating Voltage:1.5V ,two button cell sizeLR44Sampling period:1SLCD Dimension: 46.5mmx27mmSpecification:Product:4.8x2.86x1.52cm0.0254kg77cm length |
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A Study of Additive Coefficient Models. $115.71 This dissertation extends spline smoothing methods to additive coefficient models. The computational approach employs a novel combination of Kalman filtering and backfitting methodology. The overall computational effort required to evaluate the estimator is O(Nd), with d the number of effect modifying variables and N the sample size. It also develops an algorithm for computing the generalized crossvalidation criterion for selection of smoothing parameters that can be accomplished in concert with iterative evaluation of the coefficient function estimators. Bayesian confidence intervals for each coefficient function are provided as part of the estimation algorithm. Author: Yang, Hongling Binding Type: Paperback Number of Pages: 100 Publication Date: 2011/09/03 Language: English Dimensions: 9.69 x 7.44 x 0.21 inches |
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3.0' LCD Handheld Auto Range Multimeter (Voltage + Current + Resistance + Temperature/2*AAA) $26 - New type holster, streamline design- Features 3.0" LCD display- Strong antimagnetic and anti-jamming performance- Full function protection- Relative value, frequency/duty cycle measuring, data hold- It measures AC/DC voltage, resistance, temperature, diode check, transistor hFE test and etc- Display: maximum reading 4,000- DC voltage: 400mV~1000V (0.5%+4)- AC voltage: 4V~1000V (0.8%+6)- DC current: 400~20A (1.0%+5)- Resistance: 400O~40MO (0.8%+1)- Temperature: -40'C~1000'C (0.8%+4) ('C/'F selection)- Powered by 2*AAA battery (included)- Comes with a pair of test leads and temperature probes- English user manual included |
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PyleHome PDMT08 Compact Digital Multimeter With ACDC Voltage#44; Current#44; Resistance#44; Diode Check#44; Continuity Test $75.39 DoubleMolded Plastic Housing. HighContrast LCD Display. CATIII Rated. Voltage DC: Max Range 600 V Accuracy: +/ 0.5. Voltage AC: Max Range 600 V Accuracy: +/ 1.2. Current DC: Max Range 10 A Accuracy: +/ 2.5. Resistance: 2 MO Accuracy: 0.8. Diode Check. Continuity Test. Accessories Included: Test Leads 9V Battery. Dimensions: 5.91 H x 2.76 W x 1.89 D. |
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Energizer LA522 Batteries $6.94 Battery Voltage: 9V Feature: Positive Temperature Coefficient Switch (PTC) Burst Proof Venting Holes |
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