Radiation pyrometer for gas turbine blades

A turbine blade temperature measuring system for liquid oxygen turbopumps is reported. The system includes a three mode, two-input optical signal processor, interconnecting cable, and four sensor heads. Two of the heads are aperture type, while the other two are lens type. This system is applicable to a temperature range of 1400 to 2200 F

Recombination lifetimes in gamma-irradiated P-type float zone silicon

Electron decay rate and absorption cross sections for electron holes and recombination in gamma irradiated n-type silico

A brazing process for Cb-1Cr heat receiver tubes Final report

Zirconium-based alloy brazing of internal fins of Cb-1Zr foil to Cb-1Zr heat receiver tube

Application of integral damping for duct assembly vibration suppression Final report

Bending mode vibratory response of supported and sleeved ducts with fatigue and alloy studie

Optimization of duct assemblies for vibration Quarterly progress report, 1 Jul. - 30 Sep. 1968

Theoretical models and experiments on optimization of duct assemblies for vibratio

Research Notes: Heterosis and additive X additive epistasis

A model is shown which has no dominance or dominance types of epistasis but which can result in heterosis of a hybrid over the best parent. The heterosis is due, in this case, entirely to additive X additive epistasis. The fact that dominance affects inbreeding depress i on but that additive X additive epistasis does not s ugges ts that the amount of inbreeding depression is a better criterion for deciding whether or not to breed for hybrids in a particular crop

Anticancer Therapy SMRT-ens Up: Targeting the BCL6-SMRT Interaction in B Cell Lymphoma

Transcription factors have proven to be difficult targets for the development of small-molecule drugs. In this issue of Cancer Cell, Cerchietti et al. identify and characterize a specific, small-molecule inhibitor of BCL6, an oncogenic transcriptional repressor, that has high clinical promise for treating diffuse large B cell lymphoma

Development of a brazing process for Nb-1Zr heat receiver tubes Final report, 1 May 1967 - 31 Jan. 1968

Process developed for brazing niobium-zirconium alloys for heat exchanger tube fabricatio

A Bose-Einstein Condensate in a Uniform Light-induced Vector Potential

We use a two-photon dressing field to create an effective vector gauge potential for Bose-condensed Rb atoms in the F=1 hyperfine ground state. The dressed states in this Raman field are spin and momentum superpositions, and we adiabatically load the atoms into the lowest energy dressed state. The effective Hamiltonian of these neutral atoms is like that of charged particles in a uniform magnetic vector potential, whose magnitude is set by the strength and detuning of Raman coupling. The spin and momentum decomposition of the dressed states reveals the strength of the effective vector potential, and our measurements agree quantitatively with a simple single-particle model. While the uniform effective vector potential described here corresponds to zero magnetic field, our technique can be extended to non-uniform vector potentials, giving non-zero effective magnetic fields.Comment: 5 pages, submitted to Physical Review Letter