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The erythrocyte sedimentation rate (ESR or sed rate) is the rate at which red blood cells in anticoagulated whole blood descend in a standardized tube over a period of one hour. It is a common hematology test, and is a non-specific measure of inflammation .
The physical origins of ESR depend on the device in question. One way to deal with these inherent resistances in circuit analysis is to use a lumped-element model to express each physical component as a combination of an ideal component and a small resistor in series, the ESR. The ESR can be measured and included in a component's datasheet. To ...
Measuring ESR can be done by applying an alternating voltage at a frequency at which the capacitor's reactance is negligible, in a voltage divider configuration. It is easy to check ESR well enough for troubleshooting by using an improvised ESR meter comprising a simple square-wave generator and oscilloscope, or a sinewave generator of a few tens of kilohertz and an AC voltmeter, using a known ...
ESR: erythrocyte sedimentation rate: ESRF: end-stage renal failure: ESRD: end-stage renal disease: ESS: empty sella syndrome enhanced support service EST: endodermal sinus tumor: ESV: end-systolic volume: ESWL: extracorporeal shockwave lithotripsy (also ESL) (see lithotriptor) ET: endothelin endotracheal. embryo transfer Essential ...
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials that have unpaired electrons. The basic concepts of EPR are analogous to those of nuclear magnetic resonance (NMR), but the spins excited are those of the electrons instead of the atomic nuclei. EPR spectroscopy is particularly ...
ESR Technology, a UK company e-Shang Redwood , an Asia focused Real Estate services and investment firm Ethnikó Simvúlio Radhiotileórasis , the Greek National Council for Radio and Television
Many equivalent series resistance (ESR) meters, essentially AC milliohm-meters normally used to measure the ESR of capacitors, can be used to estimate battery internal resistance, particularly to check the state of discharge of a battery rather than obtain an accurate DC value. [2] Some chargers for rechargeable batteries indicate the ESR.
The Electronic Staff Record or ESR is an Oracle-based human resources and payroll database system currently used by 586 units of the National Health Service (NHS) in England and Wales to manage the payroll for 1.2 million NHS staff members. The Electronic Staff Record application is managed by IBM for the NHS.