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    the heart as well as the quantity and quality of heart contractions. An EKG‚ along with blood work to measure troponin levels‚ can definitively determine whether or not a person has suffered from a myocardial infarction. In order to obtain an EKG‚ electrodes are strategically placed on the limbs and torso of a subject to measure the electrical current that is generated in the heart and transferred to the skin. The electrical signal is first generated in the sinoatrial node (SA node). It then travels

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    Rotating Cylindrical Electrodes* YU Yong (于永)‚ LIU Youzhi (刘有智)** and QI Guisheng (祁贵生) Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology‚ North University of China‚ Taiyuan 030051‚ China Abstract A new electrochemical reactor with rotating cylindrical electrodes was designed and used to increase the regeneration efficiency of chelated iron desulfurization solution. The influence of operating parameters‚ such as the rotation speed of electrode‚ voltage‚ and inlet

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    EMG IEEE

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    Philadelphia‚ FA Davis. [4] Lapatki‚ B. G.‚ Stegeman‚ D. F.‚ and Jonas‚ I. E.‚ "A surface EMG electrode for the simultaneous observation of multiple facial muscles‚" Journal of Neuroscience Methods‚ 123(2): 117-128‚ 2003 [5] Fridlund AJ and Cacioppo JT‚ "Guidelines for human electromyographic research‚" Psychophysiology‚ 23(5): 567-589‚ 1986. [6] Cole KJ‚ KO‚ Packi RA‚ AB‚ and JH‚ "A miniature electrode for surface electromyography during speech‚" J Acoust Soc Am‚ 74: 1362-1366‚ 1983. [7] J.R.Cram;

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    Cochlear Implants

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    For people needing cochlear implants‚ there is not a viable substitute that can serve as a replacement for cochlear implants. One technology that is similar to cochlear implants is hearing aids. Hearing aids consists of a battery‚ a microphone‚ an amplifier‚ and a receiver or speaker. The battery provides power to the hearing aid and the microphone picks up sound from the surrounding environment and converts the sound into an electrical signal. This signal is then sent to the amplifier. The amplifier

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    9.1.1 Define oxidation and reduction in terms of electron loss and gain. Oxidation: the loss of electrons Reduction: the gain of electrons 9.1.2 Deduce the oxidation number of an element in a compound. Always determine elements that never change their oxidation number then ensure the charge of whole molecule is right. N.B. Atoms in elemental state have oxidation numbers of 0 9.1.3 State the names of compounds using oxidation numbers. Example of this in iron‚ can be iron(II) or iron(III) 9.1.4 Deduce

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    Programa

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    therefore‚ there is synchronous activity in a number of fibers in the same muscle. The electrical signal recorded from a contracting muscle is called an electromyogram or EMG. Like the electrocardiogram (ECG)‚ this activity can be detected by electrodes placed on the skin. A voluntary muscle contraction is produced by one or more action potentials in many fibers. The EMG activity is not a regular series of waves like the ECG‚ but a chaotic burst of overlapping spike-like signals. In this experiment

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    Electrochemistry

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    titration‚ using a glass hydronium ion selective electrode‚ a suitable reference electrode and a sensitive potentiometer (a pH meter) may be advantageous. THEORY Any acid-base titration may be conducted potentiometrically. Two electrodes‚ after calibration [to relate potential in millivolts (mV) to a pH value] are immersed in a solution of the analyte. One is an indicator electrode‚ selective for H3O+ and the other a stable reference electrode. The potential difference‚ which after calibration

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    Lab 1 Trica FINAL

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    GROUP MEMBERS: VIMAL SIEWNARINE - #52844 JASON MATHURA - #60927 FIDEL MENDOZA- #56834 BRAD NANDO- # VIMAL BALAY - #52555 CRISTINA LUTCHMAN -#52516 LAB #1‚ #2‚ #3‚ #4 CHEM 2006 -ANALYTICAL INSTRUMENTATION LECTURER – MRS. TRICIA JONES LAB 1 TITLE: Organic Compound Identification Using Infrared Spectroscopy Aim: To identify the functional groups in organic compounds using infrared spectra. APPARATUS AND REAGENTS: Nicolet 380FTIR

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    Why Pringles Are Delish

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    order to illustrate the type of chemical reaction (oxidation-reduction) that occurs in batteries.[6][7][8] The zinc and copper are called the electrodes‚ and the juice inside the lemon is called the electrolyte. There are many variations of the lemon cell that use different fruits (or liquids) as electrolytes and metals other than zinc and copper as electrodes. Use in school projects[edit] There are numerous sets of instructions for making lemon batteries and for obtaining components such as light-emitting

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    half-cell is composed of an electrode (a strip of metal‚ M) within a solution containing Mn+ ions in which M is any arbitrary metal. The two half cells are linked together by a wire running from one electrode to the other. A salt bridge also connects to the half cells. Through electrochemistry‚ these reactions are reacting upon metal surfaces‚ or electrodes. An oxidation-reduction equilibrium is established between the metal and the substances in solution. When electrodes are immersed in a solution

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