Abstract: An adjustable coupler is disclosed for interconnecting leaching chambers to create a serpentine pathway for a leaching field. A coupler can connect a first leaching chamber and a second leaching chamber. The coupler can comprise a mating feature and an adjustment feature. The mating feature can be used to mate the coupler between the first leaching chamber and the second leaching chamber. The mating feature can include a swivel connector matable to an end of one of the chambers. The adjustment feature can adjust the angle between the first chamber and the second chamber between a range of angles. The adjustment feature can include a swivel connector. The range of angles can be particularly chosen to be about 45°. More particularly, the range of angles can be about 22.5° in either the clockwise or counter-clockwise direction.

Abstract: A casing surrounds a horizontal axis to define a cavity. The cavity has a top, a bottom, and axially front and rear ends. The casing is configured to conduct a mixture of a liquid and debris through the cavity from the front end to the rear end. Front and rear walls cap the casing at the front and rear ends. A horizontal outlet tube extends through the rear wall and defines a horizontal outlet channel with a bottom. A transversely-extending weir extends upward from the bottom of the cavity. The weir has a horizontal top edge located above the channel bottom and spaced below the top of the cavity, and further has fluid flow apertures below the channel bottom.

Abstract: 2-(4-pyridyl)-5-aryloxazoles and certain quaternary salts of these compounds are useful as visible-wavelength lasing dyes. These dyes are used in solution with non-interferring polar solvents, such as low molecular weight alcohols, H.sub.2 O, and D.sub.2 O, to form lasing media useful in dye lasers. Such lasers generally include a reservoir for containing the laser dye solution and a pumping energy source operably coupled therewith for producing stimulated emission of the dye solution.

Abstract: A process for preparing 2,4-dinitro-2,4-diazapentane by(1) nitrating dimethylurea to form dimethyldinitrourea;(2) hydrolyzing the dimethyldinitrourea to form methylnitramine;(3) reacting one mole of methylamine with one mole of formaldehyde in aqus solution to form 2-nitro-2-aza-1-propanol; and(4) reaction one mole of methylnitramine with each mole of 2-nitro-2-aza-1-propanol to form one mole of 2,4-dinitro-2,4-diazapentane.

Abstract: An infrared sensitive photodiode which is made of an epitaxial layer of a miconductor alloy which is a lead chalcogenide, a lead-tin chalcogenide, or a lead-cadmium chalcogenide grown on a single crystal substrate of an infrared transparent, electrically insulating material, an Ohmic contact deposited on the epitaxial layer, and a non-Ohmic Pb metal contact deposited on the epitaxial layer to form a Schottky barrier, the improvement comprising the inclusion of halide ions in the interface region between the non-Ohmic lead metal contact and the epitaxial layer of semiconductor material.

Abstract: Salts of the formula NF.sub.4.sup.+ MF.sub.7.sup.- are produced by the fowing reactionNF.sub.4 HF.sub.2 nHF+MF.sub.6 .fwdarw.NF.sub.4 MF.sub.7 +(n+1)HFwherein M is uranium (U) or tungsten (W).

Abstract: A process for preparing 2,4-dinitro-2,4-diazapentane by(1) nitrating dimethylurea to form dimethyldinitrourea;(2) hydrolyzing the dimethyldinitrourea to form methylnitramine;(3) reacting one mole of methylamine with one mole of formaldehyde in aqus solution to form 2-nitro-2-aza-1-propanol; and(4) reaction one mole of methylnitramine with each mole of 2-nitro-2-aza-1-propanol to form one mole of 2,4-dinitro-2,4-diazapentane.

Abstract: N,N,N',N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide, ##STR1## which is prepared by the following reaction sequence ##STR2## N,N,N',N'-tetrakis(2-fluoro-2,2-dinitroethyl) oxamide is a high density, energetic explosive which is melt castable as well as thermally and hydrolytically stable.

Abstract: 3-Azidooxetane, ##STR1## is prepared by reacting 3-oxetyl p-toluenesulfonate with an alkali metal azide in a polar solvent. In the presence of a Lewis acid catalyst, 3-azidooxetane polymerizes to form a poly(3-azidotrimethylene ether) of the formula ##STR2## which can be cured with diisocyanates to form energetic, rubbery polyurethanes.

Abstract: Unsymmetrical carbonates of the formula ##STR1## are prepared by the following reaction sequence ##STR2## where R and R' can each be --CH.sub.2 C(NO.sub.2).sub.3, CH.sub.2 CF(NO..2).sub.2, --CH.sub.2 CF.sub.2 (NO.sub.2), --CH.sub.2 CCl(NO.sub.2).sub.2, --CH.sub.2 CF.sub.3, --CH.sub.2 CCl.sub.3, --CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3, or --CH.sub.2 CF.sub.2 CF.sub.2 H, provided that R.noteq.R' and wherein R" is a lower alkyl group of from 1 to 6 carbon atoms.Also included are symmetrical 1,3-bis(halo- and nitroalkyl carbonyldioxy)-2,2-dinitropropanes of the formula ##STR3## which are synthesis by the following reaction sequence ##STR4## wherein R and R" are as defined above. The carbonates of this invention are useful as energetic additives to propellants and explosive.

Abstract: Unsymmetrical carbonates of the formula ##STR1## are prepared by the following reaction sequence ##STR2## where R and R' can each be --CH.sub.2 C(NO.sub.2).sub.3, CH.sub.2 CF(NO..2).sub.2, --CH.sub.2 CF.sub.2 (NO.sub.2), --CH.sub.2 CCl(NO.sub.2).sub.2, --CH.sub.2 CF.sub.3, --CH.sub.2 CCl.sub.3, --CH.sub.2 C(NO.sub.2).sub.2 CH.sub.3, or --CH.sub.2 CF.sub.2 CF.sub.2 H, provided that R.noteq.R' and wherein R" is a lower alkyl group of from 1 to 6 carbon atoms.Also included are symmetrical 1,3-bis(halo- and nitroalkyl carbonyldioxy)-2,2-dinitropropanes of the formula ##STR3## which are synthesis by the following reaction sequence ##STR4## wherein R and R" are as defined above. The carbonates of this invention are useful as energetic additives to propellants and explosive.

Abstract: A process for preparing an infrared sensitive photodiode comprising the ss of(1) forming by vacuum deposition an epitaxial layer of a semiconductor alloy material which is PbS, PbSe, PbTe, PbS.sub.x Se.sub.1-x, PbS.sub.x Te.sub.1-x, PbSe.sub.x Te.sub.1-x, Pb.sub.y Sn.sub.1-y S, Pb.sub.y Sn.sub.1-y Se, Pb.sub.y Sn.sub.1-y Te, Pb.sub.y Sn.sub.1-y S.sub.x Se.sub.1-x, Pb.sub.y Sn.sub.1-y S.sub.x Te.sub.1-x, Pb.sub.y Sn.sub.1-y Se.sub.x Te.sub.1-x, Pb.sub.z Cd.sub.1-z S, Pb.sub.z Cd.sub.1-z Se, Pb.sub.z Cd.sub.1-z Te, Pb.sub.z Cd.sub.1-z S.sub.x Se.sub.1-x, Pb.sub.z Cd.sub.1-z S.sub.x Te.sub.1-x, or Pb.sub.z Cd.sub.1-z Se.sub.x Te.sub.1-x, wherein 0<x<1, 0<y<1, and 0<z<1, to cover at least a portion of the surface of a substrate composed of an infrared transparent single crystal material which is an alkali halide or an alkaline earth halide;(2) forming a layer of a lead halide which is PbCl.sub.2, PbBr.sub.2, PbF.sub.

Abstract: A process for preparing 3-hydroxyoxetane comprising the following steps in order(1) reacting a carboxylic acid of the formula CH.sub.3 (CH.sub.2).sub.

Abstract: A cook-off resistant booster explosive comprising a mixture of 1,3,5-triao-2,4,6-trinitrobenzene, with a second explosive selected from the group consisting of cyclotrimethylenetrinitramine (RDX), cyclotetramethylenetetranitramine (HMX), and mixtures thereof, and a compatible binder.

Abstract: Processes for reclaiming nitramines from propellants by dissolution of the rosslinked propellant binder by heating the propellant with either (1) a mixture of 2-aminoethanol, an aromatic solvent, and optionally a second low molecular weight alcohol, or (2) a mixture of a mineral acid (HCl, H.sub.2 SO.sub.4, and H.sub.3 PO.sub.4, but not HNO.sub.3), a organic solvent which is acetone, methyl ethyl ketone, ethylene glycol monomethyl ether, tetrahydrofuran, or mixtures thereof, and water.

Abstract: A method of converting magnetic energy to mechanical energy comprising subjecting a material of the formula R.sub.x T.sub.1-x wherein R is a rare earth or mixtures thereof, T is Fe, Ni, Co, Mn, or mixtures thereof, and 0<x<1, to a change in magnetic field and of converting mechanical energy to magnetic energy comprising subjecting a material of the formula R.sub.x T.sub.1-x to a change in pressure.

Abstract: Nitropolyformals of the formula H--OCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.sub.2 CH.sub.2 OCH.sub.2 --OCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.2).sub.2 CH.sub.2 OH wherein Z is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 --, --CH.sub.2 OCH.sub.2 --, or --CH.sub.2 NHCH.sub.2 -- and wherein the average molecular weight of the nitropolyformal molecules is from about 1,000 to about 50,000. The nitropolyformals are prepared by reacting a diol of the formula HOCH.sub.2 C(NO.sub.2).sub.2 ZC(NO.sub.2).sub.2 CH.sub.2 OH, wherein Z is defined as above, with formaldehyde in the presence of concentrated sulfuric acid. These polymers are useful as energetic binders in explosives and propellants.

Abstract: An explosive device comprising:(1) a metal liner composed of a metal selected from the group consisting of luminum, magnesium, copper, and brass, the liner enclosing a chamber;(2) a liquid contain in the chamber;(3) a layer of pyrotechnic material surrounding the outside of the liner, the pyrotechnic material composed of a mixture of powders of(a) nickel;(b) metal oxide; and(c) an aluminum containing component which may be (i) aluminum or (ii) a mixture of from 50 to less than 100 weight percent of aluminum and from more than zero to 50 weight percent of a metal which can be magnesium, zirconium, bismuth, beryllium, boron, tantalum, copper, silver, niobium, or mixtures thereof; and(4) means for igniting the pyrotechnic material. This device is useful as an explosive, particularly as an underwater explosive.

Abstract: Bis(2-fluoro-2,2-dinitroethoxy) 2,2,3,3,4,4,4-heptafluorobutoxymethane, (F), CF.sub.3 CF.sub.2 CF.sub.2 CH.sub.2 OCH[OCH.sub.2 CF(NO.sub.2).sub.2 ].sub.2, is an energetic plasticizer with a melting point of -18.degree. C. and thermal stability up to 150.degree. C. HFBF is miscible with polyfluoro- and polynitropolymers and useful as a plasticizer in plastic-bonded explosives.