At the time of the design of ATM, 155 Mbit / s Synchronous Digital Hierarchy ( SDH ) with 135 Mbit / s payload was considered a fast optical network link, and many Plesiochronous Digital Hierarchy ( PDH ) links in the digital network were considerably slower, ranging from 1. 544 to 45 Mbit / s in the USA, and 2 to 34 Mbit / s in Europe.

At the regional cable television headend | headend, the TV channels are sent multiplexed on a light beam which travels through optical fiber trunklines, which fan out from distribution hubs to optical nodes in local communities.

At the temperature at optical depth 2 / 3, the energy emitted by the star ( the original derivation is for the sun ) matches the observed total energy emitted.

* At an end face of an optical fiber, the angle between an input ray and the fiber axis.

At least several dB of optical power margin should be included in the optical power budget.

At those interfaces, a fraction of the optical signal is reflected back toward the source.

At the heart of Fresnel's wave theory is the Huygens-Fresnel principle, which states that every unobstructed point of a wavefront becomes the source of a secondary spherical wavelet and that the amplitude of the optical field E at a point on the screen is given by the superposition of all those secondary wavelets taking into account their relative phases.

At infrared and optical frequencies, a common technique is ellipsometry.

At this point the preoccupations of the Cambridge psychologists and of Rivers were with the special senses: colour vision, optical illusions, sound-reactions and perceptual processes.

At this stage, some details concerning Wavelength Converting Transponders should be discussed, as this will clarify the role played by current DWDM technology as an additional optical transport layer.

At the quantum mechanical level, the information content of circular dichroism and optical rotation are identical.

At an early period, he had begun his optical researches, which were to have such important results in connection with photography.

At the lower end of a typical compound optical microscope there are one or more objective lenses that collect light from the sample.

At optical frequencies, in semiconductors the dielectric constant exhibits structure related to the band structure of the solid.

At least three episodes were filmed without a live studio audience: " The Bad Old Days ," which featured an extended flashback sequence that relied on optical effects that would have been impractical to shoot with a live audience in the studio ; " The Alan Brady Show Presents ," which required elaborate set and costume changes ; and " Happy Birthday and Too Many More ," which was filmed on November 26, 1963, only four days after President Kennedy's assassination.

At this point, the Q-switch device is quickly changed from low to high Q, allowing feedback and the process of optical amplification by stimulated emission to begin.

At the same time as Chappe, the Swedish inventor Abraham Niclas Edelcrantz experimented with the optical telegraph in Sweden.

At a wavelength of 6 cm ( 5 GHz frequency ), MERLIN has a resolution of 50 milliarcseconds which is comparable to that of the HST at optical wavelengths.

At Bell Labs, Dr. Jackson researched the optical and electronic properties of two-dimensional and quasi-two dimensional systems.

At times, he seems very much in the Degas camp of rich-colored realism ( especially his interior scenes ) and at other times, he shares the Impressionists ' commitment to " optical truth " and employs an impressionistic pastel-softness and loose brush strokes most similar to Renoir and Pissarro, though with a less vibrant palette.

At its most basic, photometry is conducted by gathering radiation in a telescope, perhaps passing it through specialized optical filters, and then capturing and recording the light energy with a photosensitive instrument.

At times, advanced techniques are employed with the goal of " undoing " the distortion of the optical path of the microscope, thus eliminating distortions and blurring caused by the instrumentation.

At the time, ' CAS ' inter node signaling was slow and inter-register signaling MF5, developed from PSTN signalling protocols, was complex and would not support sufficient features.

At each node was 32 MB of memory for main cache.

At the beginning, this is the new node being inserted, but the entire procedure may also be applied recursively to other nodes ( see case 3 ).

At the time it was released, it was the world's most scalable Linux-based computer, supporting up to 64 processors in a single system node.

At the bridge and nut, the two opposed waves are in antiphase and cancel each other, producing a node.

At a given node, specified channels, groups, supergroups, etc.

At the center was the political node of the Imperial City, and at the center of this was the Forbidden City, the palatial residence of the emperor and his family.

At some point, eclipses are no longer possible and the series terminates ( Sun leaves the beginning of the node ).

At each step of the algorithm, the node with the lowest value is removed from the queue, the and values of its neighbors are updated accordingly, and these neighbors are added to the queue.

At IBM, Alan Gara started working on an extension of the QCDOC architecture into a more general-purpose supercomputer: The 4D nearest-neighbor interconnection network was replaced by a network supporting routing of messages from any node to any other ; and a parallel I / O subsystem was added.

At a minimum, this state identifies the output channel of the current node for the next hop of the route and the state of the virtual channel ( idle, waiting for resources, or active ).

At each step, the induction hypothesis states that there are infinitely many nodes reachable by a simple path from a particular node that does not go through one of a finite set of vertices.

At each node in the tree, we can precompute the bounding sphere.

At this point there is the Hellegatsplein in the water, a road traffic node, connecting to the Hoeksche Waard island on the north by the Haringvliet bridge, to the Goeree-Overflakkee on the west by the Hellegatsdam, and to the mainland on the southeast by the Volkerak Sluices.

At each node c, the algorithm checks whether c can be completed to a valid solution.

At each successive node, the membrane potential of the axon is thereby brought to the threshold potential to initiate an action potential.

At the receiving endpoint, this congestion indication is handled by the upper layer protocol ( transport layer protocol ) and needs to be echoed back to the transmitting node in order to signal it to reduce its transmission rate.

At each step, the new state of a node is a Boolean function of the prior states of the nodes with arrows pointing towards it.

At each branch of the tree there is a dividing line which divides the area of the node into two subnodes.

: At any node ( junction ) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node, or:

At each node the IP destination address of the resv message will change to the address of the next node on the reverse path and the IP source address to the address of the previous node address on the reverse path.