Abstract: Systems and methods for providing a spacecraft are provided. The spacecraft includes a main structural member that extends between end panels of the spacecraft, and that defines a first interior volume. A fuel tank is disposed within and conforms to at least a portion of the first interior volume. The fuel tank can itself include a central void that defines a second interior volume. The main structural member and the fuel tank can be cylindrical. Payload items or components of the spacecraft can be disposed within the second interior volume.

Abstract: Polymers having ordered architectures and one or more reactive functional groups incorporated in select blocks or regions of the polymer in particular proportions relative to other regions in the polymer, are described. The polymers are well suited for use in adhesive compositions, and particularly for pressure sensitive adhesive compositions. In addition, various methods for forming the noted polymers and adhesive compositions utilizing the ordered polymers are disclosed.

Abstract: Polymers having ordered architectures and one or more reactive functional groups incorporated in select blocks or regions of the polymer in particular proportions relative to other regions in the polymer, are described. The polymers are well suited for use in adhesive compositions, and particularly for pressure sensitive adhesive compositions. In addition, various methods for forming the noted polymers and adhesive compositions utilizing the ordered polymers are disclosed.

Abstract: A digital modality modeling system includes a computer with a digital memory adapted for storing patient densitometry information, an input and an output. An input subsystem includes a pair of source/receptor units mounted on a signal positioning subsystem, which is adapted for moving the source/receptor units through predetermined paths of movement, which can be circular or linear. The resulting tomographic data is synthesized to form any 3-D model or image, which is output for further analysis. A digital tomosynthesis method includes the steps of moving a pair of sensor/receptor units relative to a patient. The resulting signals output by the receptor are digitized and synthesized to form a 3-D image or model. Multiple depths of penetration and multiple widths can be captured from single acquisitions using digital tomosynthesis signal processing techniques.

Abstract: Water resistant, acrylic emulsion pressure sensitive adhesive polymers containing particles having a mean “volume-average” particle diameter of greater than about 210 nm for use in label and tape application are provided. The emulsion polymers exhibit an increase in opacity of less than about 10%.

Abstract: A process for preparing enlarged latex particles by aggregation of primary latex particles in a latex emulsion is disclosed. Also disclosed are processes for making graft copolymer compositions and multimodal polymer compositions using latex emulsions containing enlarged latex particles and uses of the enlarged latex particles, the graft copolymer compositions and multimodal polymer compositions.