English Language Learners Definition of rev Entry 2 of 2. See the full definition for rev in the English Language Learners Dictionary. Britannica English: Translation of rev for Arabic Speakers. Subscribe to America's largest dictionary and get thousands more definitions Rev A advanced search—ad free! Log in Sign Up. Save Word. Definition of rev Entry 1 of 4. Definition of rev Entry 2 of 4.
Definition of rev Entry 3 of 4. Rev abbreviation 2. Definition of Rev Entry 4 of 4. Examples of rev in a Sentence Recent Examples on the Web: Noun For drivers still perfecting their craft, the Mach 1 features rev -matching downshifts—purists will be happy to know it can be shut off. First Known Use of rev Noun circain the meaning defined at sense 1 Verbin the meaning defined at transitive sense 1a. History and Etymology for rev Noun short for revolution. In lateRevision B Rev.
B was published, whose features include the ability to bundle multiple carriers to achieve even higher rates and lower latencies see TIA Rev. B below. A to Rev.
B involves a software update of the cell site modem, and additional equipment for new EV-DO carriers. Existing cdma operators may have to retune some of their existing 1xRTT channels to other frequencies, as Rev. B requires all DO carriers be within 5 MHz.
The primary characteristic that differentiates an EV-DO channel from a 1xRTT channel is that it is time multiplexed on the Rev A link from the tower to the mobile. This means that a single mobile has full use of the forward traffic channel within a particular geographic area a sector during a given slot of time.
This allows the service of users in favorable RF conditions with very complex modulation techniques while also serving users in poor RF conditions with simpler and more redundant signals. The forward channel is divided into slots, each being 1. In addition to user traffic, overhead channels are interlaced into the stream, which include the 'pilot', which helps the mobile find and identify the channel, the Media Access Channel MAC which tells the mobile devices when their data is scheduled, and the 'control channel', which contains other information the network needs the mobile devices to know.
It then communicates this information back to the serving sector in the form of an integer between 1 and 12 on the "Digital Rate Control" DRC channel. Alternatively, the mobile can select a "null" rate DRC 0indicating that the mobile either cannot decode data at any rate, or that it is attempting to hand off to another serving sector.
The DRC values are as follows: . Another important aspect of the EV-DO forward link channel is the scheduler. The scheduler most commonly used is called " proportional fair ".
It's designed to maximize sector throughput while also guaranteeing each user a certain minimum level of service. The idea is to schedule mobiles reporting higher DRC indices more often, with the hope that those reporting worse conditions will improve in time.
Each sub-packet of a multi-slot transmission is a turbo-coded replica of the original data bits. This allows mobiles to acknowledge a packet before all of its sub-sections have been transmitted. For example, if a mobile transmits a DRC index of 3 and is scheduled to receive data, it will expect to get data during four time slots. If after decoding the first slot the mobile is able to determine the entire data packet, it can send an early acknowledgement back at that time; the remaining three sub-packets will be cancelled.
If however the packet is not acknowledged, the network will proceed with the transmission of the remaining parts until all have been transmitted or the packet is acknowledged. The channel includes a reverse link pilot helps with decoding the signal along with the user data channels.
Only the reverse link has any sort of power controlbecause the forward link is always transmitted at full power for use by all the mobiles. In the open loop, the reverse link transmission power is set based upon the received power on the forward link. In the closed loop, the reverse link power is adjusted up or down times a second, as indicated by the serving sector similar to 3G1X. All of the reverse link channels are combined using code division and transmitted back to the base station using BPSK  where they are decoded.
The maximum speed available for user data is Revision A of EV-DO makes several additions to the protocol while keeping it completely backwards compatible with Release 0. These changes included the introduction of several new forward link data rates that increase the maximum burst rate from 2. The authors then demonstrate the scheme by measuring the scalar and the tensorial part of the anisotropic polarizability of Dy atoms near the nm intercombination line using K as a reference species.
Marian Kreyer et al. The authors report experimental measurements on electron-impact ionization of CO 2 using the angle- and energy-resolved electron-ion-coincidence technique. The results provide experimental evidence of symmetry breaking in electron-impact dissociative ionization of symmetric molecules.
Noboru Watanabe and Masahiko Takahashi Phys. Quantum harmonic oscillators are promising resources for quantum computation and quantum error correction, owing to the infinite number of available states and their ubiquitous presence in nature in various realizations, but accessing and manipulating the entire state space requires an infinite amount of energy.
In this paper, the authors provide a fully analytical construction to systematically close off any finite-dimensional subspace of an oscillator and further achieve universal control on it, by coupling Rev A a qubit. Yuan Liu et al. The authors demonstrate experimentally the creation of dual-species Bose-Einstein condensates of 23 Na atoms and Cs atoms.
The mixture is shown to Rev A miscible and to have a long lifetime of tens of seconds, which could potentially allow the creation of ground-state NaCs molecules in the future. Claire Warner et al. At the beginning ofeight Physical Review journals began publishing Letters which are intended for the accelerated publication of important new results targeted to the specific readership of each journal. We are very pleased to offer the readers of Physical Review a new, carefully curated collection of articles from the vibrant field of laser-plasma particle acceleration.
Some of the articles have already been published, and others will be forthcoming. APS Editor in Chief, Michael Thoennessen, discusses a new opportunity for communicating authors to include their pronouns together with their contact email in order to promote a more respectful, inclusive, and equitable environment.
Physicists working in optics, atomic and molecular physics, and quantum information reflect on landmark papers and how they influence research today. Opening for submissions later this year, PRX Energy is a new, highly selective open access journal from APS that will communicate and facilitate important advances in energy science and technology for the benefit of humanity.
Article publication charges Rev A will be waived for a limited time. APS has selected Outstanding Referees for who have demonstrated exceptional work in the assessment of manuscripts published in the Physical Review journals. A full list of the Outstanding Referees is available online. We are very pleased Rev A offer the readers of Physical Review X a new, carefully curated collection of articles from the vibrant field of laser-plasma particle acceleration.
Starting January 1,the Rapid Communications article type will be renamed to Letters. Learn more.
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