simple case uses one-way ( a single

The advantage of one-way systems is that they can be technically simple and serve many receivers, as the transmitter is unaware of the receivers.

* Flap, any hinged plate often used as a cover or a simple one-way valve

While some models may have a one-way valve at the bottom of the tube which forces some of the boiling water up the tube, most operate on the simple principle that the rising bubbles will force the liquid up the tube.

A simple one-way trapdoor design has been described that is placed over the burrow for this purpose.

Nikola Tesla invented a deceptively simple one-way valve for fluids in 1916, called a Tesla valve.

Rather than limiting the possible causal relationships to simple, linear, one-way dynamics, they entertain the possibility that the causal forces may be multi-directional ( i. e. circular ) and complex.

* In an effort to avoid simple relationships between the cipher key and the subkeys, to resist such forms of cryptanalysis as related-key attacks and slide attacks, many modern ciphers use much more elaborate key schedules, algorithms that use a one-way function to generate an " expanded key " from which subkeys are drawn.

In this simple surgical procedure, a small puncture is made between the trachea and the esophagus, and a one-way air valve is inserted.

As a device intended to pass signals in one direction only, the line filters offer nothing that couldn't be done ( with the same results ) by an inexpensive signal booster-a simple one-way RF amplifier already widely available cheaply and readily for other purposes.

But Mercer's explanation was simple: `` I made out the check and carried it around a few days unsigned -- in case I lost it ''.

It is then necessary to check that there exists a simple group for each characterization and that it is unique.

Zoroastrian morality is then to be summed up in the simple phrase, " good thoughts, good words, good deeds " ( Humata, Hukhta, Hvarshta in Avestan ), for it is through these that asha is maintained and druj is kept in check.

Furthermore, routing information as specified by ISO 9362 does not contain check digits, so simple errors of transcription were not detectable and it was not possible for a sending bank to validate the routing information prior to submitting the payment.

He also has a simple definition for talent in writing: " If you wrote something for which someone sent you a check, if you cashed the check and it didn't bounce, and if you then paid the light bill with the money, I consider you talented.

The lowest level, where the sounds are the most fundamental, a machine would check for simple and more probabilistic rules of what sound should represent.

This means that clients may check out and compare versions with either a blank or simple published password ( e. g., " anoncvs "); only the check-in of changes requires a personal account and password in these scenarios.

It is a simple check to see if the produced material is rational ( that the material's creator was thinking rationally, applying sanity ).

While simple longitudinal parity can only detect errors, it can be combined with additional error control coding, such as a transverse redundancy check, to correct errors.

Commercial paper is a simple form of debt security that essentially represents a post-dated check with a maturity of not more than 270 days.

If a X. 509v3 certificate is bound to a valid organization's distinguished name within the Directory, then a simple check can be made in regards to the authenticity of the certificate by a comparison with what is presented to the browser with what is present in the Directory.

Some senators wanted to reduce it to a simple majority ( 51 out of 100 ) but this was rejected, as it would greatly diminish the ability of the minority to check the majority.

The mass is 64 grams. The reed valve is a simple but highly effective form of check valve commonly fitted in the intake tract of the piston-controlled port.

Operators frequently did not check simple faults, for example checking whether a fuse had blown or a power plug had become disconnected.

As well, the bodyguards will want to know the names of the staff who will have contact with the client, so that a simple electronic background check can be run on these individuals.

This part of the white mans burden truly exemplifies Britain's colonization's of other countries, " Take up the White Man's burden, In patience to abide, To veil the threat of terror, And check the show of pride ; By open speech and simple, An hundred times made plain To seek another's profit, And work another's gain.

As timecodes in analog systems are prone to bit-errors and drop-outs, most timecode processing devices check for internal consistency in the sequence of timecode values, and use simple error correction schemes to correct for short error bursts.

They also are the most reliable, because they are simple, with the only operating components being the automatic sprinklers and ( commonly, but not always ) the automatic alarm check valve.

* Shearing interferometer, in optics, a simple and very common means to check the collimation of beams by observing interference

This task may seem easy for the simple patterns above, but with many complicated recursive patterns, the task becomes difficult for the average human ( or compiler, if it has to check arbitrary nested if-else constructs ) to handle.

For example, a simple implementation might define a function to check for the dongle's presence, returning " true " or " false " accordingly, but the dongle requirement can be easily circumvented by modifying the software to always answer " true ".

To check the accuracy of a simple carpenter's type level ( i. e. whether the level indicates that a truly horizontal surface is, in fact, level ), it is placed on a flat and approximately level surface, and the reading on the bubble tube is noted.

That it is an orthogonal matrix means that its rows are a set of orthogonal unit vectors ( so they are an orthonormal basis ) as are its columns, making it simple to spot and check if a matrix is a valid rotation matrix.

In computing, a checkbox ( check box, tickbox, or tick box ) is a graphical user interface element ( widget ) that permits the user to make multiple selections from a number of options ( contrary to a radio button where only one choice is possible ) or to have the user answer yes ( checked ) or no ( not checked ) on a simple yes / no question.

The Liquid Crystal Display is intrinsically a “ passive ” device, it is a simple light valve.

The mouth pipe has a simple round piece of leather hinged on to the bag end of the pipe and acts like a non-return valve.

Valve costs range from simple inexpensive disposable valves to specialized valves which cost thousands of US dollars per inch of the diameter of the valve.

For instance, because valving is accomplished by simple ports cut into the walls of the rotor or side housings, they have no valves or complex valve trains ; in addition, since the rotor rides directly on a large bearing on the output shaft, there are no connecting rods and there is no crankshaft.

A loose-fitting rubber plug in the lid, held in place by steam pressure, provides a simple safety valve.

A simple stylized diagram of a heat pump's vapor-compression refrigeration cycle: 1 ) condenser, 2 ) expansion valve, 3 ) evaporator, 4 ) compressor.

More rarely, a simple gravity-or spring-operated flap valve attached to the bottom of the chanter achieves the same end.

Despite the simplification they can bring to the electronics of an HVDC valve, light triggered thyristors may still require some simple monitoring electronics and have the disadvantage of being available from only very few manufacturers.

The earliest scheme was a simple vacuum brake, in which vacuum was created by operation of a valve on the locomotive ; the vacuum actuated brake pistons on each vehicle, and the degree of braking could be increased or decreased by the driver.

While modern ventilators are computerized machines, patients can be ventilated with a bag valve mask, a simple hand-operated machine.

After Hurricane Katrina, dedicated staff " bagged " patients in New Orleans hospitals for days with simple bag valve units attached to endotracheal tubes, a " ventilator " system which can be used with no definite time limit.

The following equation, derived from a simple heat balance around the throttling valve or device, is used to predict how much of a single-component liquid is vaporized.

Some simple oxygen rebreathers had no constant-flow valve, but only the bypass, and the diver had to operate the valve at intervals to refill the breathing bag as he used the oxygen.

Their construction was simple: the existing circular plug valve was changed to an inverted " top hat " shape, with an enlarged upper diameter.

A sidebar is the observation that the niche " DH-SET " topology favored by some audiophiles are extremely simple and typically constructed using valve types originally designed for use in radio transmitters

Traditionally the bags are made from goat hides that are removed from the slaughtered animal in one piece, cured, turned inside out, then tied off just in front of the rear legs, one of the front legs serving to house the blow pipe with its simple leather valve ( soffietto ), and the other tied off.

Instead, a simple valve at the upper end of the foot helps to control water pressure in the tube feet, along with contraction of the associated canals.

However, the Provincial government's engineering consultants advised that sampling of the water behind the 2200 plug before removal of the sampling valve, showed the water that the chemistry behind the plug had become more neutral with respect to sulphate levels and pH since construction of the plug, and therefore the simple concrete plug could last much longer than 60-70 years.

Frank P. Cotter developed a " simple self sealing check valve, adapted to be connected in the pipe connections without requiring special fittings and which may be readily opened for inspection or repair " 1907 ( U. S. patent # 865, 631 ).