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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

[A] snowpack test that involves drawing the back edge of a snow saw up the length of a known weak layer in a column of snow.  3, record 1, English, - propagation%20saw%20test

Record number: 1, Textual support number: 1 OBS

During the test, the weak layer is monitored and the [propagation saw] test is halted the moment it begins to independently propagate the fracture being initiated by the saw. The results of the test give a point observation of a weak layer's tendency to propagate a fracture once it has been initiated.  3, record 1, English, - propagation%20saw%20test

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

[...] test du manteau neigeux au cours duquel on glisse le dos d'une scie à neige le long d'une couche fragile, dans une colonne de neige.  3, record 1, French, - test%20de%20propagation%20%C3%A0%20la%20scie

Record number: 1, Textual support number: 1 OBS

Lors du test, la couche fragile est observée, et le test [de propagation à la scie] est arrêté aussitôt que la rupture initiale faite à la scie se propage de façon indépendante. Les résultats du test permettent une observation précise de la tendance d'une rupture à se propager, une fois qu'elle a été initiée.  3, record 1, French, - test%20de%20propagation%20%C3%A0%20la%20scie

Record number: 1, Textual support number: 1 CONT

Le test de propagation à la scie (PST [...]) permet d'estimer à partir de quelle longueur une fissure réalisée à la scie va se propager dans un bloc de neige prédécoupé et de comparer la propension à la propagation pour différents manteaux neigeux.  2, record 1, French, - test%20de%20propagation%20%C3%A0%20la%20scie

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

ionospheric propagation mode. A single ray path between the transmitter and receiver. An ionospheric propagation path may comprise several different individual paths, all of which can propagate the signal from the transmitter to the receiver. The mode is labeled in terms of the number of reflections it experiences for each of the layers from which it is reflected. The simplest ionospheric mode is a single hop path having one reflection on the ionosphere... More complex modes can have several reflections from a layer... and may also have reflections from more than one layer...  3, record 2, English, - ionospheric%20propagation%20mode

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

As the signals propagate through the different layers in the network, the activity pattern present at each upper layer can be thought of as a pattern with features that can be recognized by units in the subsequent layer.  1, record 3, English, - activity%20pattern

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Les perceptrons élémentaires sont des machines à règle de décision linéaire, partageant l'espace des motifs d'activation en deux classes séparées par un hyperplan de l'espace à m dimensions.  1, record 3, French, - forme%20d%27activation

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Because of variations of sound velocity with depth, sound rays are bent as they propagate from point to point.... In order to trace the path of a ray, the velocity profile is divided into layers of constant velocity and paths are then computed by Snell' s law for rays leaving the source at different angles. In earlier work various types of analog computers were used but digital computers, are now favoured.  1, record 4, English, - velocity%20profile

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

[...] l'importance des relevés bathythermiques traduits en profils de célérité, c'est-à-dire en vitesse du son en fonction de l'immersion, est grande en sonar. Ces profils servent à établir (de façon instantanée dans les traceurs de rayons modernes) les trajets sonores à partir d'une source placée de façon quelconque.  2, record 4, French, - profil%20de%20c%C3%A9l%C3%A9rit%C3%A9

Record 4,  Textual support,  Spanish