Sepia

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sepia

1. a dark reddish-brown pigment obtained from the inky secretion of the cuttlefish
2. any cuttlefish of the genus Sepia
3. a brownish tone imparted to a photograph, esp an early one such as a calotype. It can be produced by first bleaching a print (after fixing) and then immersing it for a short time in a solution of sodium sulphide or of alkaline thiourea
4. a brownish-grey to dark yellowish-brown colour
5. a drawing or photograph in sepia

Sepia

 

a genus of cephalopod mollusks of the order Decapoda. The body is elongated (up to 25 cm) and flattened, and there are fins on the sides. The arms are equipped with suckers; the two longest arms are wider at the ends and serve to capture prey. The shell is internal, located under a mantle on the back. The secretion of the large ink gland (an outgrowth of the rectum) is a means of defense. The cuttlefish of this genus can expel it into the water as an “ink bomb,” similar in shape to the animal itself, thus confusing and disorienting the enemy. Upon contact with the enemy, the bomb bursts, forming a “smoke screen.” The Sepia are bottom dwellers, and their body color harmonizes with the substratum. They crawl along the bottom with the help of their arms and swim slowly with their fins. They can also swim rapidly by expelling a jet of water from the mantle. The Sepia inhabit coastal waters (to a depth of 200 m) of tropical and warm seas. Their flesh is edible. The secretion of the ink gland (sepia) is used in painting as a very durable dark-brown color.

I. M. LIKHAREV


Sepia

 

a light brown coloring substance. Natural sepia is obtained from the ink sac of the sepia, a marine mollusk. The sepia used in art today is a kind of watercolor that is prepared artificially in many tonal variations. Sepia is also a graphic technique that has been popular throughout Europe since the mid-18th century: a famous artist who used the technique is J. H. Fragonard in France.

sepia

[′sē·pē·ə]
(materials)
A brown pigment prepared from the dried, inky exudation of a cuttlefish; used as a dye and in watercolors and ink.

SEPIA

Standard ECRC Prolog Integrating Applications. Prolog with many extensions including attributed variables ("metaterms") and declarative coroutining. "SEPIA", Micha Meier <micha@ecrc.de> et al, TR-LP-36 ECRC, March 1988. Version 3.1 available for Suns and VAX. (See ECRC-Prolog). E-mail: <sepia-request@ecrc.de>.
References in periodicals archive ?
The simulations were carried out for the electric circuit presented in Figure 5, which is composed of: a set of photovoltaic panels in series connection, a SEPIC converter, the control system (MPPT algorithm), and an independent voltage source (V0) of460 [V].
5, which includes the PV mathematical model, the SEPIC converter and the adaptive PandO algorithm.
'Proposal resolution that was prepared by rapporteurs and unanimously adopted by the Monitoring Committee of the Council of Europe is a very balanced document, which on the one hand welcomes some progress in the country regarding agreement on the reform agenda and population census, and on the other expresses concern over lack of results regarding the Strategy for processing war crimes and completion of the process of locating missing persons,' said Sepic.
The vendor considers the WE-DPC HV to be suitable for SEPIC, flyback, Cuk, zeta, and multi-output-buck converters application.
There are several topologies, including Buck, Boost, Buck-Boost, SEPIC, Cuk, Fly back, etc.
Canesin, "A high efficiency hpf-zcs-pwm sepic for electronic ballast with multiple tubular fluorescent lamps" in Applied Power Electronics Conference and Exposition, 2012.
Another multiport topology, based on a Sepic converter (tied to the wind turbine) and a Cuk converter (tied to the PV system) is presented in [5].In this topology, the MPPT controllers for the two power sources do not influence one another.
To verify the feasibility and suitability of proposed hybrid MPPT method, a MPPT system, consisting of a MSX60 model, a Single Ended Primary Inductance Converter (SEPIC), a MPPT function model and a 30-V battery, is constructed under the simulation environment PSIM [15].
The Solus Topology integrates a conventional buck converter into a SEPIC converter to form a SEPIC-fed buck converter; a single stage topology with one magnetic element, one control switch and two commutation switches that are optimally controlled by pulse-width modulation (PWM).
Based on classes taught at the University of Arkansas, this graduate textbook introduces topologies, design models, and control techniques for buck, boost, Cuk, SEPIC, Zeta, resonant, forward, push-pull, half-bridge, flyback, and dual active bridge converters.