Abstract: A laser shock peening system including a workpiece is provided. The laser shock peening system includes a workholding fixture configured to hold the workpiece. The laser shock peening system also includes a laser source configured to emit multiple laser beam pulses on the workpiece. The laser shock peening system further includes an absorptive layer disposed on the workpiece, the absorptive layer configured to absorb the laser beam pulses from the laser source into the workpiece. The laser shock peening system also includes a transparent constraining layer disposed between the laser source and the absorptive layer. The transparent constraining layer is also configured to provide a pressure medium configured to direct multiple reflected laser generated shock waves from the workpiece back into the workpiece. The laser shock peening system also includes a transducer disposed on the workholding fixture and configured to detect multiple acoustic signals emitted from the workpiece.

Abstract: A molecular single electron transistor (MSET) detector device (14) is described that comprises at least one organic molecule (87) connecting a drain electrode (84) and a source electrode (82). In use, said at least one organic molecule (87) provides a quantum confinement region. At least one analyte receptor site (90, 92) is provided in the vicinity of said at least one organic molecule (87) that bind molecules of interest (analytes). A fluid analyser (2) is also described that includes the MSET detector, a pre-concentrator (4) and a fluid gating structure (6). The fluid gating structure (6) is arranged to selectively route fluid from the pre-concentrator (4) to either one of the detector (14) and an exhaust port (12). The pre-concentrator (4), fluid gating structure (6) and detector (14) are each formed as substantially planar layers and arranged in a stack or cube.

Abstract: An ice chest included in a container which is suitable for mounting upon a rear rack or carrier on a motorcycle. The container includes a second, separate compartment for containing dry goods which is positioned adjacent the ice compartment for maintaining such goods in a cooled condition. The ice compartment houses a removable tray which supports beverage containers adapted to be kept cold within the chest. The ice compartment and dry compartment include separate covers and locking or closure means. A fresh water compartment is also provided within the ice compartment and has an externally accessible faucet extending through the side wall of the chest. Drainage for the water resulting from melting ice is also provided for, and the rear of the chest has a padded back rest mounted thereon for the rider of the motorcycle.

Abstract: An ice chest included in a container which is suitable for mounting upon a rear rack or carrier on a motorcycle. The container includes a second, separate compartment for containing dry goods which is positioned adjacent the ice compartment for maintaining such goods in a cooled condition. The ice compartment houses a removable tray which supports beverage containers adapted to be kept cold within the chest. The ice compartment and dry compartment include separate covers and locking or closure means. A fresh water compartment is also provided within the ice compartment and has an externally accessible faucet extending through the side wall of the chest. Drainage for the water resulting from melting ice is also provided for, and the rear of the chest has a padded back rest mounted thereon for the rider of the motorcycle.

Abstract: A nuclear reactor fuel assembly having an easily disassembled threaded connection between the end fitting and the control rod guide tubes. More specifically, the threaded connection is formed between the upper and/or lower alignment posts and the guide tubes and clamps the fuel assembly end plate therebetween. The sizing and arrangement of the connections is such that the assembled joint may be subjected to thermal cycling without incurring excessive stresses or deformations.

Abstract: A nuclear reactor fuel assembly having an easily dissassembled threaded connection between the end fitting and the control rod guide tubes. More specifically, the threaded connection is formed between the upper and/or lower alignment posts and the guide tubes and clamps the fuel assembly end plate therebetween. The sizing and arrangement of the connections is such that the assembled joint may be subjected to thermal cycling without incurring excessive stresses or deformations.

Abstract: Low expansion alloys consisting essentially of Ni-Fe-Ti and optionally containing Co and/or Nb are provided which in the as-cast, age hardened condition have a thermal expansion coefficient between 20.degree. and 300.degree.C of less than 6 .times. 10.sup..sup.-6 /.degree.C and a 0.2% proof stress at 20.degree.C higher than 350 N/mm.sup.2.

Abstract: A process for producing carbidic low expansion alloy which is especially useful as a cast structure requiring close dimensional tolerances is comprised of about 21 to about 55% nickel, up to about 18% cobalt, from about 0.3 to about 2.5% carbon, up to about 3% chromium, from about 0.2 to about 1.2% vanadium, up to about 3% molybdenum, up to about 2% zirconium, niobium and tungsten, and the balance essentially iron, with the provisos:% Ni + 0.75 (% Co) = 30.5 to 55,Cr + Mo + V + Zr + Nb + W = 1 to 4Ni : Fe .gtoreq. 0.4:1.

Abstract: A carbidic low expansion alloy which is especially useful as a cast structure requiring close dimensional tolerances is comprised of about 21 to about 55% nickel, up to about 18% cobalt, from about 0.3 to about 2.5% carbon, up to about 3% chromium, from about 0.2 to about 1.2% vanadium, up to about 3% molybdenum, up to about 2% zirconium, niobium and tungsten, and the balance essentially iron, with the provisos:% Ni + 0.75 (% Co) = 30.5 to 55, Cr + Mo + V + Zr + Nb + W = 1 to 4 Ni : Fe .gtorsim. 0.4:1.