Abstract: Examples of the disclosure include a fishing device comprising an agitation device configured to move relative to a medium, the agitation device including a tapered anterior section entrained to produce laminar flow in the medium around the anterior section of the agitation device and including at least one anterior attachment site, and a posterior section that flares out from the tapered anterior section and includes at least one posterior attachment site, the at least one posterior attachment site being configured to be coupled to a lure downstream of the agitation device, the posterior section being entrained to produce turbulent flow downstream of the agitation device in a region around the lure.

Abstract: An exposure metering method wherein the scene to be photographed is imaged such that the absolute luminance values for all digitized pixels in the scene are recorded and displayed. A custom lookup table is applied that elucidates the f-stop relationship of all of the elements of the scene simultaneously. The imaged data is correlated directly to the characteristic response of a particular recording medium, by designating one or more key colors that relate key ranges of scene luminance values to key regions of the recording medium response. Using this approach, the entire scene is visualized directly from the perspective of the recording medium. An optimal exposure can be rapidly generated that takes into account the relationship between all luminance levels in the scene, regardless of lighting conditions, scene contrast, subject complexity, or the specific recording medium for which the exposure determination is intended.

Abstract: The invention relates to a method for processing waste that contains contaminants. The contaminants may be metals modified by carbon, oxygen, phosphorus, or sulfur. The waste in the form of a powder is mixed with an ionic reducing agent in an inert liquid medium. The mixture is melted to give a first liquid phase and a second metal phase. The two phases are separated and solidified to enable disposal or temporary storage of the first liquid phase and to enable recycling of the second metal phase. The method is useful for inerting or reclaiming waste containing metal contaminants.

Abstract: Glass compositions containing oxygen and nitrogen prepared by melting admixture of magnesia and/or a magnesium silicate, silica and an aluminum nitride produced by reacting ammonia with aluminum oxide, have the formula:Mg.sub.x Si.sub.y Al O.sub.u N.sub.v (1)in which 0.25.ltoreq.x.ltoreq.2.50, 1.25.ltoreq.y.ltoreq.3.50, 3.75.ltoreq.u.ltoreq.10.50, and 0.05.ltoreq.v.ltoreq.0.75, with the proviso that 2x+4y+3=2u+3v; the subject glass compositions are thermally converted into vitroceramics having the same formula and including a single cordierite crystalline phase, which vitroceramics are well adapted for the production of composite shaped articles.

Abstract: The present invention relates, a compound for use with selective detectors of the semiconductor resistance type which detect for nitrogenous reducing gases in the atmosphere, especially ammonia and gases containing NH and/or NH.sub.2 groups, said compound comprising the gallium nitride and, oxynitrides of tetrahedral structure according to the general formula: ##EQU1## in which: .quadrature. represents a hole, and 0.ltoreq.x.ltoreq.0.3.

Abstract: The present invention relates to a novel crystalline massive aluminosilicate with an expanded structure and to its process of manufacture. The particular structure is a closed cell structure containing nitrogen. It is obtained by: grinding industrial glass; adding aluminum based nitride in the proportion of 0.1 to 20% by weight with respect to the weight of the ground industrial glass; mixing the ground glass and so-added nitride; oxidizing the nitride within said mixture by heating to a temperature of 800.degree. to 1000.degree. C. for about 1 hour, and cooling and recovering the expanded crystalline aluminosilicate. The material has multiple applications in the building industry and in the construction of furnaces, in the manufacture of fireproof walls and doors, and in naval construction, with various advantages over prior art materials.

Abstract: The present invention relates to neutron-absorbent oxide or oxynitride glasses containing gadolinium and a process for their preparation.The glasses according to the invention, which incorporate silicon, aluminum, oxygen or oxygen and nitrogen, additionally contain gadolinium in a proportion of approximately 5 to 15 atom %.