Abstract: A computer-implemented method and system involve using a mobile smart phone to capture an image of a person for whom sizing dimensions are desired. A known dimension of the person or a reference target is included in the image. The image is processed by one or more servers. A scaling ratio can be determined from the known dimension and a pixel map of the image in which the item with the known dimension is identified. That scaling ratio may be used to determine nominal dimensions of desired portions of the person based on their pixel dimensions. For the girth dimensions, a matrix of pixel measurements of certain body portions may be used with a regression-derived formula developed from empirical data to accurately estimate the girth dimension at the chest or waist or other locations. Other methods and systems are disclosed.

Abstract: An apparatus and method are described for refrigeration employing a condenser, an evaporator, and a compressor, wherein a condenser vent is provided for exhausting accumulated mixtures of non-condensable gas, such as air, and refrigerant gas, wherein accumulated non-condensable gas mixed with refrigerant gas from the condenser vent is provided to a membrane separator comprising at least two chambers separated by a selective membrane, said chambers being a high pressure chamber to which the non-condensable gas mixed with refrigerant gas is supplied, and a low pressure chamber into which the refrigerant gas is selectively permeated through said selective membrane for reintroduction and reuse in the refrigeration cycle, and on said high pressure chamber of said membrane separator, a vent is provided to exhaust non-condensable gas-rich raffinate gas.

Abstract: A semi-permeable gas membrane process is described for the separation of very high purity nitrogen from a process feed gas mixture that is predominantly nitrogen, and one or more other permeable gases, which process comprises providing a feed gas mixture under pressure to a membrane separator unit comprising a semi-permeable separation membrane with respect to which the largest fraction of the other permeable gases is at least 20 times more permeable than nitrogen, to provide a very high purity raffinate nitrogen gas product.