Abstract: Polymers made up of chains, which contain and/or are cross-linked by carbamoyl hydroxamate groups, are prepared by the interaction of hydroxamic acid and isocyanate groups contained in monomeric or polymeric molecules. The resulting polymers are thermally degradable and have utility for the preparation of foamed polymers such as polyurethanes or polyureas. Upon heating, the carbamoyl hydroxamate links evolve CO.sub.2 and cleave to produce amine and isocyanate groups. The isocyanate groups may be allowed to react with the amine groups, to form N, N' -- disubstituted urea groups, or caused to react with other active hydrogen functions, such as hydroxyls, to form a variety of products, such as polyurethanes.

Abstract: A manipulator is shown of the type which includes an effector, such as a hand, comprising a pair of jaws relatively pivotally movable between open and closed positions under operation of power means such as an electric motor. Sensing means, for sensing both magnitude and direction of forces along three mutually orthogonal axes intersecting at the wrist and for sensing magnitude and direction of torques about said axes, are provided at the wrist intermediate to the manipulator hand and hand supporting means. The sensing means includes a plurality of sensing units radially spaced from the longitudinal axis of the manipulator at equal distances therefrom. In an exemplary arrangement, four such orthogonally located sensing units are employed, each of which includes a radially extending opaque pin carried by the manipulator arm or hand. Each pin extends into a clearance hole formed in an energy source and detector housing carried by the other of the arm and hand.

Abstract: New compounds 4-methyl-1,4-cyclohexadiene-1-carboxaldehyde syn-oxime, 4-methoxymethyl-1,4-cyclohexadiene-1-carboxaldehyde syn-oxime, and 4-(1-methoxyethyl)-1,4-cyclohexadiene-1-carboxaldehyde syn-oxime, as well as the compound 1,4-cyclohexadiene-1-carboxaldehyde syn-oxime, are found to have a high degree of sweetness which is accompanied by very little off-taste. The compounds have good stability even in acid solution. They give no evidence of toxicity and can be employed in foods and beverages as synthetic sweetening ingredients.

Abstract: Twelve analogs of diethylcarbamazine as prepared by acylation of 3- and 8-methyl-3,8-diazabicyclo[3.2.1]octane, 2-methyl-2,5-diazabicyclo[2.2.2]octane, and 2-methyl-2,5-diazabicyclo[2.2.1]heptane with diethylcarbamyl chloride, ethyl chloroformate, ethyl isocyanate, and cyclohexanecarbonyl chloride. These compounds are formally derived from diethylcarbamazine in possessing two- or one-carbon bridges over the piperazine ring. The compounds have utility as antifilarial agents and as bronchodilators.

Abstract: Twelve analogs of diethylcarbamazine as prepared by acylation of 3- and 8-methyl-3,8-diazabicyclo[3.2.1]octane, 2-methyl-2,5-diazabicyclo[2.2.2]octane, and 2-methyl-2,5-diazabicyclo [2.2.1]heptane with diethylcarbamyl chloride, ethyl chloroformate, ethyl isocyanate, and cyclohexanecarbonyl chloride. These compounds are formally derived from diethylcarbamazine in possessing two- or one-carbon bridges over the piperazine ring. The compounds have utility as antifilarial agents and as bronchodilators.

Abstract: Velocity of a gas (e.g., wind) is determined as a function of the pulse repetition frequency of corona discharge (Trichel) pulses from a discharge probe positioned in the gas stream.

Abstract: 19-Norpregna-1,3,5(10)-trien-3-ol and loweralkyl homologs thereof wherein the alkyl group attached in the 17.beta. position contains from 2 to 7 carbon atoms. Said compounds, along with the corresponding known 17.beta.-methyl derivative, are found to have antifertility activity, and particularly postcoital antifertility activity, along with very low estrogenic activity, when administered orally to mammals.

Abstract: A scene is scanned with several different frequency light beams, emitted for example, from a mixed gas laser. The scattered light returned from the surfaces of the objects in the scene is detected. Comparing the phase of the returned light with the emitted light provides range information. The amplitudes of the signals of the various different frequency light beams are logically combined to provide the color at each point of the various surfaces within the scene. From the combined range and color information machine analysis of the scene can be made so that the objects in a cluttered scene can be recognized by the machine.

Abstract: Vinyl halide resin compositions having improved fire resistance are formed by the introduction into said compositions of a small amount of a reactive hydroxy group-containing polyvalent metal salt of a phenol-aldehyde resin of the novolac type. The resulting vinyl halide resins evidence increase charring of the surface when exposed to heating by a flame or undergoing combustion, the surface char acting as a barrier to heat transfer from the flame and retarding the flow of volatile gases from the pyrolyzing resin.

Abstract: A technique for comparing master parts with replicas to determine differences in shapes or sizes, is disclosed, which uses interferometric techniques as disclosed. A television camera is used to scan the pattern established by illuminating the subject with a set of optical fringes. An objective lens images these on a transmission line grating. A television camera scans the transmission grating. The spatial frequencies of the subject fringes and of the grating are especially selected so that the camera can not resolve either of them but can resolve their difference. As a result, the output signals of the camera represent a contour map of the object placed on a low frequency spatial carrier, but yet, the measurement sensitivity is still determined by the spatial frequency of the subject fringes.

Abstract: New 3-methyl-3-nitrosoureido derivatives of the following amino sugars were prepared as analogs of streptozotocin with the anomeric carbon protected, by nitrosating the methylureas in water with N.sub.2 O.sub.3 : 3-amino-3-deoxy-1,2-O-isopropylidene-.alpha.-D-ribofuranose; methyl 3-amino-3-deoxy-.beta.-D-xylopyranoside; methyl 3-amino-3-deoxy-.alpha.-D-altropyranoside; methyl 3-amino-3-deoxy-.alpha.-D-glucopyranoside; and methyl 3-amino-2,3,6-trideoxy-.alpha.-L-lyxohexopyranoside. Tests against murine leukemia L1210 show that the anticancer activity of streptozotocin not only was retained but was enhanced in most of these derivatives.

Abstract: A lens converter ultrasonic camera method and system are shown for producing a visible representation in real time and true perspective of inhomogeneities in an opaque subject or specimen and especially suitable for imaging organs of living organisms. An ultrasonic wave generating transducer means is coupled to the specimen for insonification thereof, and focused perspective images using either transmitted or reflected ultrasonic waves are produced and directed upon an array of acoustic to electrical transducer elements. Scanning means are employed to expose the transducer elements to the entire acoustic image to generate electrical signals representative of the acoustic image.