Abstract: An open C magnet system for magnetic resonance imaging comprises circular NdFeB poles, a single piece yoke having beveled inside and outside faces between the vertical post section and the horizontal arms of the yoke, a necked-in mid-section of the vertical post, flat Nebdymium (NdFeB) corner plates in face to face relationship with the inside beveled faces between the vertical post and the horizontal arms.

Abstract: A motor mount for a motor having an elongate drive shaft. The motor mount includes a base having a generally planar surface. At least one elongate rail is disposed at the surface of the base. A motor carriage plate has a generally planar bottom surface disposed approximate to and generally parallel to the surface of the base. The motor carriage plate has at least one rail engaging surface disposed at an angle to the bottom surface. The motor mount includes a motor carriage fastener for fastening the motor to the motor carriage plate. A fastener is provided for attaching the motor carriage plate to the base plate such that the rail engaging surface engages the elongate rail.

Abstract: A method and apparatus for converting heat energy to mechanical energy with greater efficiency. According to the method, heat energy is applied to a working fluid in a reservoir sufficient to convert the working fluid to a vapor and the working fluid is passed in vapor form to means such as a generator for converting the energy therein to mechanical work. The working fluid is then recycled to the reservoir. In order to increase the efficiency of this process, a gas having a molecular weight no greater than the approximate molecular weight of the working fluid is added to the working fluid in the reservoir and separated from the working fluid downstream from the reservoir.

Abstract: Ceramic composites, and in particular structural ceramic composites, have enhanced strength, toughness and abrasion resistance due to the presence of up to about 40 volume percent of relatively large boron carbide whiskers. Although whiskers of various sizes were studied, those of particular interest are whiskers having an average diameter greater than about 3 micrometers, and particularly about 5 to about 8 micrometers, with an average aspect ratio of about 50. Due to the larger size, which had been predicted to be detrimental, there is less respiratory health risk when using these whiskers in the manufacturing of thse improved ceramic composites. Since boron carbide whiskers have many properties superior to silicon carbide whiskers, the most common strengthening agent, the findings should lead to several improved ceramic composites.