Abstract: A method includes projecting light to obtain a reference measurement using a first photoresistor; collecting dust on a platform during a collection time interval; and projecting light across the platform to obtain a dust measurement using the first photoresistor or a second photoresistor.

Abstract: A laundry or fabric cleaning composition that comprises a surfactant blend that includes a nonionic alkyl polyglucoside, and a functionalized alkyl polyglucoside component.

Abstract: An aqueous based drilling fluid that exhibits improved lubricity, containing a phospholipid lubricant component and methods of improving the lubricity of an aqueous based drilling fluids. The methods include improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent, with the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compared to the fluid absent the phospholipids.

Abstract: A cleaning composition that comprises a nonionic sorbitan alkyl polyglucoside crosspolymer, at least one functionalized alkyl polyglucoside, a water conditioning agent, water, and an acid source.

Abstract: Systems and methods are provided for ranking assets relative to a group of viewers. A group is formed by a user by selecting a number of different viewer preference profiles or automatically by the system as a function of analyzing similarities among viewer preference profiles. Individual preference values are computed for each viewer in the group relative to an asset. A group preference value is then computed by performing a function on the individual preference values. A display is generated that represents the individual preference values and the group preference value relative to an asset. Based on the information provided in the display, the asset most relevant to the group may be selected.

Abstract: Systems and method for receiving user channel search criteria, searching for channels based on representative content information, and presenting the channel results to the user. The interactive media guidance application prompts the user to enter channel search criteria by selecting categories or inputting keywords. The interactive media guidance application gathers information about channels in the form of channel attribute data. The channel attributed data identifies attributes of the typical programs provided by the channel over time. The application compares the channel attribute data for each channel with the user-entered channel search criteria. Matches or lack thereof are then displayed to the user by the interactive media guidance application.

Abstract: Systems and methods are provided for ranking assets relative to a group of viewers. A group is formed by a user by selecting a number of different viewer preference profiles or automatically by the system as a function of analyzing similarities among viewer preference profiles. Individual preference values are computed for each viewer in the group relative to an asset. A group preference value is then computed by performing a function on the individual preference values. A display is generated that represents the individual preference values and the group preference value relative to an asset. Based on the information provided in the display, the asset most relevant to the group may be selected.

Abstract: Systems and method for receiving user channel search criteria, searching for channels based on representative content information, and presenting the channel results to the user. The interactive media guidance application prompts the user to enter channel search criteria by selecting categories or inputting keywords. The interactive media guidance application gathers information about channels in the form of channel attribute data. The channel attributed data identifies attributes of the typical programs provided by the channel over time. The application compares the channel attribute data for each channel with the user-entered channel search criteria. Matches or lack thereof are then displayed to the user by the interactive media guidance application.

Abstract: Systems and method for receiving user channel search criteria, searching for channels based on representative content information, and presenting the channel results to the user. The interactive media guidance application prompts the user to enter channel search criteria by selecting categories or inputting keywords. The interactive media guidance application gathers information about channels in the form of channel attribute data. The channel attributed data identifies attributes of the typical programs provided by the channel over time. The application compares the channel attribute data for each channel with the user-entered channel search criteria. Matches or lack thereof are then displayed to the user by the interactive media guidance application.