Abstract: The present invention relates to a device, such as a decal, for releasing an agent capable of being sensed through olfaction, generally in conjunction with the use, application, or presence of water or water vapor, as in a shower, spa, bath tub, sink, sauna, basin, or the like. The decal includes a web and an agent that can be released, transmitted, or delivered so that the agent can be sensed or detected through olfaction. The decal further includes an affixation element, such as a bonding material, that attaches the decal to a surface. In some embodiments, the agent may be attached to the web while in other embodiments the agent may form part of the web. In one embodiment, the agent is menthol. In another embodiment, the agent is menthol and is accompanied by a material capable of effervescing. In yet another embodiment, the device for releasing an agent capable of being sensed through olfaction is attached to fixtures or molded surfaces that are typically associated with showers, baths, sinks, etc. (e.g.

Abstract: A process for determining the tension in a moving web is provided. The process includes the step of providing a web that is moving at a determined speed. The speed has a determined basis weight. A wave is created in the moving web. The speed of the propagation of the wave is determined. Also, the tension on the moving web is determined through a mathematical relationship between the wave speed, the basis weight of the web, and the speed of the web. The instability index of the web is greater than or equal to 0.5.