Electrode

recorded at each increment and the electrode is rinsed with distilled water and placed back in the beaker with distilled water. The pipet is rinsed with distilled water and then with 5mL of 0.1 M Acetic acid. Next, 25mL of 0.1 M Acetic acid is pipetted into a 100mL beaker. The 0.1 M Acetic acid is titrated with the 0.1 M NaOH in increments given in the data sheet; mixing well at each point and wait until the pH stabilizes. The pH is recorded at each increment and the electrode is rinsed with…

a technique where an electrode is placed within certain areas of the brain. Electrical impulses are then created by the electrode to regulate abnormal impulses. Under the patient’s skin near the collarbone, the electrode is connected to a stimulator or pacemaker (Pluta, 2011). Deep brain stimulation requires locating the target part of the brain and then drilling a small hole in the skull to allow the placement of an electrode. During the implantation of the electrode, testing occurs to…

1.2 Types of welding There are so many types of welding process to weld metal or non-metals are given below. Welding is generally two types: (i) Conventional (ii) Nonconventional 1.2.1. Conventional welding Arc welding (i) Shielded metal arc welding (SMAW), (ii) Gas metal arc welding (GMAW), (iii) Flux cored arc welding (FCAW), (iv)Gas tungsten arc welding (GTAW) or tungsten inert gas (TIG) welding (v) Submerged arc welding (SAW), (vi) Plasma Arc Welding, (vii) Carbon arc welding, (viii) Atomic…

tungsten electrode and the metal that needs to be welded. A gas is fed through the torch to protect the electrode and molten weld pool. The gas is usually made up of argon or helium and this gas protects the electrode and the weld metal from the surrounding atmosphere. Extra filler wire may be added to the weld pool if required and this will also be protected by the gas shield. TIG welding requires a skilled craftsman to achieve a high quality weld because the welder must not strike the…

(which has a charge of 2+ on the zinc). In industry, a process called electroplating is used to coat one metal with another metal. In this case, zinc will be electroplated onto the negative electrode, the cathode, when the ionic zinc chloride is discharged through reduction processes. At the positive electrode—the anode—chlorine gas will be…

(Sigma-Aldrich), and COC (Polysciences Inc.), and a schematic of the CMOS inverter with the energy-level diagram. A series of sequential ultrasonic treatments were applied to clean heavily n-doped Si substrates acting as the gate electrodes for transistors and as the input electrodes for inverters. Approximately 10 nm-thick HfOx films were prepared by spin coating with a HfCl4 precursor solution (nitric acid added to HfCl4 dissolved in absolute ethanol) on the substrates at 5,000 rpm for 30 s…

muscle is functioning. Electromyograms are able to detect electrical activity in the muscle which can be analyzed to see if a certain muscle is working properly. EMGs can either be used by placing electrodes directly into the muscle, called an intramuscular EMG, or it can function by placing electrodes on top of the…

developing a retinal prosthetic. A positive aspect to developing a retinal prosthetic is that it can restore the entire field of vision. Most retinal prosthetics are comprised of a collection of electrodes that function in the same way that a photoreceptor cell in the retina would (Pezaris et al, 2009). The electrode fit on to a small surface and do not require surgical attachment to the eye, they are just imbedded in the retina. Light stimulates the implant, which in turn releases an electrical…

nickel layer typically has a purpose as a conducting metal used for sending a potential difference to vibrate the PZT by piezoelectric effect. In addition, the nickel layer is also has a role as a mechanical support having PZT is fragile. Piezo electrode patterning incorporates wet etching process using liquid chemicals or etchants to take off materials from its substrate. The etchant used in this lab is Nickel etchant TFB composed of nitric acid, potassium perfluoroalkyl sulfonate and water. In…

muscle fibres to contract. EMG is the signal made, it can be measured by applying conductive elements or electrodes to the skin surface, or invasively with the muscle. When using EMG, tiny devices named electrodes are used to transmit or detect electrical signals. Three factors that may influence its accuracy: 1. The placement of the electrode on the skin, overlying the muscle. 2. ¬¬¬The electrode shape and size. 3. Physiology mind set of the character of EMG. Results…