Translation of "buoyant" into Spanish

Domestic demand has been affected directly by the less buoyant expectations.

La demanda interna se ve directamente afectada por las expectativas menos boyantes.

The buoyant particles accumulate at the water surface and are collected with skimmers.

Las partículas flotantes se acumulan en la superficie del agua y se recogen con desespumadores.

You know, it's funny,'cause everybody else apart from you describes her as positive and buoyant before she died.

Es extraño porque todos excepto tú la describen como una persona positiva y optimista antes de morir.