| 单词 | standard cell |
| 例句 | Notice the negative value of the standard cell potential indicates the process is not spontaneous under standard conditions. Chemistry 2019-02-14T00:00:00Z However, certain combinations of standard cells are more vulnerable to the presence of metallic nanotubes than are others. Carbon-nanotube computer scaled up 2019-08-27T04:00:00Z In standard cells, absorbed sunlight kicks electrons on silicon atoms up to a higher energy level, allowing them to skip across neighboring atoms towards a positively charged electrode. Solar cells that work in low light could charge devices indoors 2018-04-23T04:00:00Z Lineage data from each embryo was aligned to a reference lineage with standard cell cycle lengths44. Regulatory analysis of the C. elegans genome with spatiotemporal resolution : Nature : Nature Publishing Group 2014-08-26T04:00:00Z The iPhone app takes a photo of the ECG, reduces its size, and transmits the image over a standard cell phone network to a secure server. Instagram for Heart Attacks: iPhone App Speeds ECG Transmission To Hospital 2013-05-17T19:05:19Z Tabulations of standard electrode potentials may be used to compute standard cell potentials, E°cell, for many redox reactions. Chemistry 2019-02-14T00:00:00Z Shipments of smartphones outpaced standard cell phones for the first time in the first three months of the year, according to research by International Data Corp. Smartphone shipments outpace cellphones' for first time in 1Q 2013-04-26T14:17:00Z The technology at issue relates to how the data from a phone call is extracted from the carrier waveform that is received by a standard cell phone. Qualcomm Is In A David-and-Goliath Patent Infringement Fight With A Tiny Tech Company 2012-10-04T18:15:35Z This undated image shows a standard cell inside the prison The prison is situated in the picturesque seaside town of Scheveningen. Profile: The 'Hague Hilton' 2012-05-16T09:41:45Z "The gold standard cells at the present time are embryonic stem cells," Lanza said. Imperfections mar hopes for reprogrammed stem cells 2011-03-31T21:38:27Z The positive value for the standard cell potential indicates the process is spontaneous under standard state conditions. Chemistry 2019-02-14T00:00:00Z But to determine at any time the actual value of its readings in volts, it is necessary to standardize it, or determine its scale-value or reduction-factor, by comparison with a standard cell. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Therefore if we know how many volts to call the e. m. f. of the standard cell we can say that X has an e. m. f. of twice as many volts. Letters of a Radio-Engineer to His Son There was the Thomson reflecting mirror galvanometer and electrometer, while nearby were the standard cells by which the galvanometers were adjusted and standardized. Edison, His Life and Inventions The electromotive force of a Clark standard cell at a temperature of 15 degrees centigrade is 1.434 volts. The Story of Electricity The relation between free energy change and standard cell potential confirms the sign conventions and spontaneity criteria previously discussed for both of these properties: spontaneous redox reactions exhibit positive potentials and negative free energy changes. Chemistry 2019-02-14T00:00:00Z These difficulties have been removed by the great advances since 1880, and in particular by the introduction of accurate standard cells for measurements of electrical pressure. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" Next connect the negative terminal of the standard cell to the negative terminal of the storage batteries, that is, brace their feet against each other. Letters of a Radio-Engineer to His Son To make a test like this we put a sensitive current-measuring instrument in the wire which leads from the positive terminal of the standard cell. Letters of a Radio-Engineer to His Son We know how many volts of e. m. f. are required to keep going the electron stream between n and b–we know that from the e. m. f. of our standard cell. Letters of a Radio-Engineer to His Son Write the balanced cell reaction for the cell schematic below, calculate the standard cell potential, and note whether the reaction is spontaneous under standard state conditions. Chemistry 2019-02-14T00:00:00Z Opposite this we mark twice the number of volts of the standard cell. Letters of a Radio-Engineer to His Son Then connect a wire to the positive terminal of the standard cell. Letters of a Radio-Engineer to His Son To be sure that they are just right he can then send them to the Bureau of Standards and have them compared with the standard cells which the Bureau has. Letters of a Radio-Engineer to His Son I don’t propose to tell you much about standard cells for you won’t have to use them until you come to study physics in real earnest. Letters of a Radio-Engineer to His Son What is the standard cell potential for the battery? Chemistry 2019-02-14T00:00:00Z |
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