In computing, a virtual machine (VM) is an emulation of a computer system. Virtual machines are based on computer architectures and provide functionality of a physical computer. Their implementations may involve specialized hardware, software, or a combination.
Cyclic voltammetry (CV) is a type of potentiodynamic electrochemical measurement. In a cyclic voltammetry experiment, the working electrode potential is ramped linearly versus time. Unlike in linear sweep voltammetry, after the set potential is reached in a CV experiment, the working electrode's potential is ramped in the opposite direction to return to the initial potential. These cycles of ramps in potential may be repeated as many times as needed. The current at the working electrode is plotted versus the applied voltage to give the cyclic voltammogram trace. Cyclic voltammetry is generally used to study the electrochemical properties of an analyte in solution or of a molecule that is adsorbed onto the electrode.
Differential pulse voltammetry (DPV) is a voltammetry method used to make electrochemical measurements and a derivative of linear sweep voltammetry or staircase voltammetry, with a series of regular voltage pulses superimposed on the potential linear sweep or stairsteps. The current is measured immediately before each potential change, and the current difference is plotted as a function of potential. By sampling the current just before the potential is changed, the effect of the charging current can be decreased.
Voltammetry is a category of electroanalytical methods used in analytical chemistry and various industrial processes. In voltammetry, information about an analyte is obtained by measuring the current as the potential is varied. The analytical data for a voltammetric experiment comes in the form of a voltammagram which plots the current produced by the analyte versus the potential of the working electrode.
"Weak" is a song recorded by American R&B vocal trio SWV for their debut studio album It's About Time (1992). It was written and produced by Brian Alexander Morgan, who composed the lyrics based upon his feelings towards singer Chanté Moore. Morgan originally wrote the song for Charlie Wilson, but he later decided to give the song to SWV. Morgan revealed that Coko did not like the song and gave him attitude during the recording of the single.
Cheryl Elizabeth Clemons, better known by her stage name Coko, is an American R&B recording artist and television personality. Clemons is best known as the lead singer of the American R&B vocal trio Sisters With Voices (SWV). Aside from her R&B career, Clemons also has a solo gospel career.
Linear sweep voltammetry is a voltammetric method where the current at a working electrode is measured while the potential between the working electrode and a reference electrode is swept linearly in time. Oxidation or reduction of species is registered as a peak or trough in the current signal at the potential at which the species begins to be oxidized or reduced.
Staircase voltammetry is a derivative of linear sweep voltammetry. In linear sweep voltammetry the current at a working electrode is measured while the potential between the working electrode and a reference electrode is swept linearly in time. Oxidation or reduction of species is registered as a peak or trough in the current signal at the potential at which the species begins to be oxidized or reduced.
Chetyre Paltsa is a small island in the northern shores of Gizhigin Bay, Sea of Okhotsk. It is located 7 km west of the coast of the Varkhalamsky Peninsula.
Hydrodynamic voltammetry is a form of voltammetry in which the analyte solution flows relative to a working electrode. In many voltammetry techniques, the solution is intentionally left still to allow diffusion controlled mass transfer. When a solution is made to flow, through stirring or some other physical mechanism, it is very important to the technique to achieve a very controlled flux or mass transfer in order to obtain predictable results. These methods are types of electrochemical studies which use potentiostats to investigate reaction mechanisms related to redox chemistry among other chemical phenomenon.
Tamara Antrice "Taj" Johnson-George (née Johnson; born April 29, 1971) is an American singer, rapper, actress, and author. George is best known as one-third of the R&B singing group Sisters with Voices (SWV), she was also a contestant on Survivor: Tocantins.
"Can We" is a song by American R&B trio SWV. It featured guest vocals by Missy Elliott and production by Timbaland and Elliott. The song was eventually included on SWV's third album, Release Some Tension (1997), but was originally a hit earlier in the year when it was included on the soundtrack to the 1997 film, Booty Call. "Can We" was a huge hit that received major airplay on Urban radio stations in the US, but it was not commercially available for the public to purchase as a cassette or CD single in America. Despite topping the airplay chart, its modest overall chart performance was due to its limited availability as a 12-inch vinyl single, which was no longer a popular format with the music buying public at the time.
Cantiones sacrae, Op. 4, is a collection of forty different pieces of vocal sacred music on Latin texts, composed by Heinrich Schütz and first published in 1625. The pieces have individual numbers 53 to 93 in the Schütz-Werke-Verzeichnis (SWV), the catalogue of his works. The general title Cantiones sacrae was common at the time and was used by many composers, including Palestrina, Byrd and Tallis and Hans Leo Hassler (1591).
Evensk is an urban-type settlement in the Severo-Evensky District, Magadan Oblast, Russia. As of 2016, it has a population of 1567.
Symphoniae sacrae I, Op. 6, is a collection of different pieces of vocal sacred music on Latin texts, composed by Heinrich Schütz, published in 1629. He set mostly psalms and excerpts from the Song of Solomon for one to three voices, with various instruments and continuo. Its twenty pieces were assigned 257 to 276 in the Schütz-Werke-Verzeichnis (SWV), the catalogue of his works. Two additional volumes appeared later, Symphoniae sacrae II in 1647, and Symphoniae sacrae III in 1650.
Electrochemical stripping analysis is a set of analytical chemistry methods based on voltammetry or potentiometry that are used for quantitative determination of ions in solution. Stripping voltammetry have been employed for analysis of organic molecules as well as metal ions. Carbon paste, glassy carbon paste, and glassy carbon electrodes when modified are termed as chemically modified electrodes and have been employed for the analysis of organic and inorganic compounds.
