Alignment microscope for rotating laser scanner

Microscopic assembly for alignment of rotary laser focuses on small film area along scan line at oblique angle. Suitable choice of angle and location of optical components project laser beam line as X coordinate reticle. Coordination with horizontal recticle line included microscope facilitates Y coordinate position indexing

Horn antenna with v-shaped corrugated surface

Corrugated shape is easily machined for millimeter wave application and is better suited for folding antenna designs. Measured performance showed ""V'' corrugations and rectangular corrugations have nearly the same pattern beamwidth, gain, and impedance. Also, ""V'' corrugations have higher relative power loss

Incorporation of Functionalized Polyhedral Oligomeric Silsesquioxane Nanomaterials as Reinforcing Agents for Impact Ice Mitigating Coatings

In-flight, aircraft are exposed to a wide range of environments. One commonly exposed environment are clouds containing super-cooled water droplets. These water drop- lets exist in a metastable state below the freezing point of water, in the range of 0 to -20C. As the vehicle impacts the droplets, latent heat is released and within milliseconds the droplets convert to ice. This process is referred to as impact icing or in-flight icing.1 Impact icing is a major concern for aircraft since it can lead to degraded aerodynamic performance and, if left un- treated, can lead to loss of the vehicle. Active approaches (i.e., pneumatic boots, heated air ducts) typically utilized in mitigating in-flight ice accretion significantly increases vehicle weight and cannot be applied to all aircraft.1-3 A passive approach based on coatings is desired, but durability issues are a concern, especially on the wing leading edge.3 Nanomaterials have been shown to afford significant improvement in coating and composite physical properties at low loading levels.4 In this study, Polyhedral Oligomeric Silsesquioxane (POSS) nanomaterials have been shown to increase coating durability. Also, with wide variety of functionalities present on the arm structure, POSS nanomaterials have been shown to readily alter coating surface chemistry to mitigate impact ice adhesion from -16 to -8C in a simulated in-flight icing environment

In situ correlative measurements for the ultraviolet differential absorption lidar and the high spectral resolution lidar air quality remote sensors: 1980 PEPE/NEROS program

In situ correlative measurements were obtained with a NASA aircraft in support of two NASA airborne remote sensors participating in the Environmental Protection Agency's 1980persistent elevated pollution episode (PEPE) and Northeast regional oxidant study (NEROS) field program in order to provide data for evaluating the capability of two remote sensors for measuring mixing layer height, and ozone and aerosol concentrations in the troposphere during the 1980 PEPE/NEROS program. The in situ aircraft was instrumented to measure temperature, dewpoint temperature, ozone concentrations, and light scattering coefficient. In situ measurements for ten correlative missions are given and discussed. Each data set is presented in graphical and tabular format aircraft flight plans are included

Wind tunnel tests of a zero length, slotted-lip engine air inlet for a fixed nacelle V/STOL aircraft

Zero length, slotted lip inlet performance and associated fan blade stresses were determined during model tests using a 20 inch diameter fan simulator in the NASA-LeRC 9 by 15 foot low speed wind tunnel. The model configuration variables consisted of inlet contraction ratio, slot width, circumferential extent of slot fillers, and length of a constant area section between the inlet throat and fan face. The inlet performance was dependent on slot gap width and relatively independent of inlet throat/fan face spacer length and slot flow blockage created by 90 degree slot fillers. Optimum performance was obtained at a slot gap width of 0.36 inch. The zero length, slotted lip inlet satisfied all critical low speed inlet operating requirements for fixed horizontal nacelles subsonic V/STOL aircraft

TAXATION - INCOME TAX - INSURANCE - AMOUNTS RECEIVED BY STOCKHOLDERS UNDER LIFE INSURANCE CONTRACT

A corporation took out several policies of insurance on the life of its president, naming itself as beneficiary. Later, reserving the right to hypothecate the policies, it assigned them to a trustee who agreed to distribute the proceeds of the policies to the stockholders of record at the time of the president\u27s death. At the death of the president the proceeds were paid by the insurance companies to the trustee who then paid them pro rata to the stockholders. At this time the corporation had on hand earnings equivalent to the amount of distribution, and there was no showing that any of these earnings were made before March 1, 1913. The stockholders were taxed on the distributions and paid under protest. The board of tax appeals confirmed the findings of the commissioner. Held, that the stockholders did not receive the distributions under a contract of insurance, but as dividends of the corporation, and that the proceeds received by the stockholders were therefore not exempt under section 22 (b) (1) of the Revenue Act of 1934. Golden v. Commissioner of Internal Revenue, (C. C. A. 3d, 1940) 113 F. (2d) 590

FRAUDULENT CONVEYANCES - CONTINGENT CREDITORS - BANK STOCKHOLDERS\u27 DOUBLE LIABILITY

A holder of bank stock conveyed real estate to her daughter in consideration of love and affection, leaving the grantor with no other assets than the bank stock. At the time, the bank stock had a market value of eleven dollars a share, and the bank was advertising for depositors; there was nothing in the record to indicate insolvency. About two years later the bank closed, and the superintendent of banks assessed the stockholders the amount of their statutory double liability. When the transfer was discovered the superintendent brought action to set aside the conveyance as fraudulent to the creditors of the bank. Held, that the bank creditors, because of the stockholders\u27 double liability, were at the time of the conveyance creditors of the grantor within the meaning of the statute; the bank superintendent, as representative of the creditors, could therefore set aside the conveyance as fraudulent to them. Squire, Supt. of Banks v. Cramer, 64 Ohio App. 151, 28 N. E. (2d) 516 (1940)