Syntheses of Optically Active Alpha-amino Acids from Alpha-keto Acids by Hydrogenolytic Asymmetric Transamination
Syntheses of optically active alpha-amino acids from alpha-keto acids by hydrogenolytic asymmetric transamination
AMINO ACID↗
SEARCH · Engineering Papers
Results for “Synthesizers”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Design and evaluation of chemically synthesized food for long space missions
Chemically synthesized food for long space missions
MANNED SPACE FLIGHT↗
A programable display synthesizing system for man-machine communications research.
Programmable display synthesizing system for man- machine communications research based on electronic animation technique
COMMUNICATION SYSTEM↗
On the reactions of carbonyl compounds with N-salicylideneglycinatoaquocopper /II/ - Syntheses of beta-hydroxy alpha-amino acid from glycine.
Carbonyl compounds reaction with N- salicylideneglycinatoaquocopper /II/ syntheses of beta-hydroxy alpha-amino acid from glycine
CARBONYL↗
Syntheses of optically active alpha-amino acids from alpha-keto acids by hydrogenolytic asymmetric transamination.
Optically active alpha amino acids synthesized from alpha keto acids by hydrogenolytic asymmetric transamination
CHEMICAL REACTION↗
Digital control of a frequency synthesizer.
Circuit for remote digital control of frequency synthesizers, giving schematic diagram
Hammond, W. E.↗
The binding of basic proteinoids with organismic or thermally synthesized polynucleotides.
Binding of lysine-rich proteinoids to organismic or thermally synthesized polynucleotides, noting polyanhydroamino acid interactions with polynucleotides
Fox, S. W.↗
Daily rhythm in the accumulation of brain catecholamines synthesized from circulating H3-tyrosine
Daily rhythm in accumulation of rat brain catecholamines synthesized from circulating tritiated tyrosine
Wurtman, R. J.↗
On the sterically controlled syntheses of dipeptides and their stereochemical courses
Stereochemical course of sterically controlled syntheses of dipeptides, using optically active amino acids
Harada, K.↗
Antiwear and EP additive effects during rolling and spinning contact with a synthesized hydrocarbon oil
Antiwear and extreme pressure additive effects during bearing spinning with synthesized hydrocarbon oils
Zaretsky, E. V.↗
Digitally controlled frequency synthesizer Patent
Digitally controlled frequency synthesizer for pulse frequency modulation telemetry systems
Cliff, R. A.↗
A digitally controlled very high frequency synthesizer
Breadboard model of digitally controlled very high frequency synthesizer for use in aviation navigation receiver
Middleton, J. H.↗
Antiwear and EP additive effects during rolling and spinning contact with a synthesized hydrocarbon oil
Synthesized hydrocarbon oil antiwear and extreme pressure additives effects on bearing spinning torque and endurance
Zaretsky, E. V.↗
Amino acids obtained from lunar soil and from laboratory syntheses
Amino acid contents of Apollo 11 and 12 fines, discussing laboratory syntheses
Fox, S. W.↗
An investigation of compressor noise by use of a spinning mode synthesizer.
Use of the Spinning Mode Synthesizer (SMS) as a tool for studying the properties of such complex waves as those generated by fan engines. This has greatly reduced the amount of trial and error techniques used for optimizing duct liners. The SMS was designed by using simple transducer theory and properly controlling the phasing to each of 8 loudspeakers. It provides a means for making in-duct measurements of the radial, axial, and circumferential modal distributions. Results are presented which show that the device is of value for investigation of the highly complex nature of compressor radiated noise.
Oslac, M. J.↗
An Algorithm for Synthesizing Mass and Stiffness Matrices from Experimental Vibration Modes
An algorithm is described for synthesizing the mass and stiffness matrices from experimentally derived modal data in a way that preserves the physical significance of the individual mass and stiffness elements. The mass and stiffness matrices are derived for a rollup solar array example, and are then used to define the modal response of a modified array.
Ross, R. G., Jr.↗
A subjective evaluation of synthesized STOL airplane noises
A magnitude-estimation experiment was conducted to evaluate the subjective annoyance of the noise generated by possible future turbofan STOL aircraft as compared to that of several current CTOL aircraft. In addition, some of the units used to scale the magnitude of aircraft noise were evaluated with respect to their applicability to STOL noise. Twenty test subjects rated their annoyance to a total of 119 noises over a range of 75 PNdb to 105 PNdb. Their subjective ratings were compared with acoustical analysis of the noises in terms of 28 rating scale units. The synthesized STOL noises of this experiment were found to be slightly more annoying than the conventional CTOL noises at equal levels of PNL and EPNL. Over the range of levels investigated the scaling units, with a few exceptions, were capable of predicting the points of equal annoyance for all of the noises with plus or minus 3 dB. The inclusion of duration corrections, in general, improved the predictive capabilities of the various scaling units; however, tone corrections reduced their predictive capabilities.
Powell, C. A., Jr.↗