18,821 research outputs found
Effects of lender decisions on farm financial planning : some solutions to problems arising from credit limitations set by commercial lenders
Bibliography: p. 20
Study of optimum discrete estimators in measurement analysis
Study of statistical techniques for obtaining estimates of true data parameters uses discrete measured quantities containing random error. These techniques develop estimation procedures as an iterative algorithm for digital computation in real time
Triple point determinations of monomethylhydrazine and nitrogen tetroxide, 2.2 percent by weight nitric oxide
A series of tests was performed to ascertain the triple points of monomethylhydrazine and nitrogen tetroxide. A laboratory method indicated a triple point for monomethylhydrazine, but tests in a large vacuum chamber indicated that a triple point does not occur in spacelike conditions because the mono-methylhydrazine tends to supercool. Instead, an effective freezing point (with agitation) was obtained. New experimental values for liquid monomethylhydrazine vapor pressure were determined for temperatures from 275.2 to 207.6 K. The values were used to derive vapor pressure equations. Tentative values were obtained for the effective freezing point of nitrogen tetroxide spacelike conditions
Stereoscopic computer graphics display system
Handbook was published on study which describes relative merits of two general-purpose, steroscopic display systems. Both systems are adaptable to most small data processing facilities and, with minimal hardware development, greatly enhance user ability to interact with computer and to interpret data output. Section also describes digital-to-analog converters designed for use with system
Development of an image converter of radical design
A long term investigation of thin film sensors, monolithic photo-field effect transistors, and epitaxially diffused phototransistors and photodiodes to meet requirements to produce acceptable all solid state, electronically scanned imaging system, led to the production of an advanced engineering model camera which employs a 200,000 element phototransistor array (organized in a matrix of 400 rows by 500 columns) to secure resolution comparable to commercial television. The full investigation is described for the period July 1962 through July 1972, and covers the following broad topics in detail: (1) sensor monoliths; (2) fabrication technology; (3) functional theory; (4) system methodology; and (5) deployment profile. A summary of the work and conclusions are given, along with extensive schematic diagrams of the final solid state imaging system product
Alaska Agricultural Experiment Station Circular, No. 7
“P O T A T O E S are an important food in Alaska. Matanuska V alley farmers
can produce enough to meet the needs of the Anchorage area if the crop
can be kept satisfactorily from one year to the next. The Alaska climate,
however, makes better-than-average storage and management necessary to
insure a continuous supply throughout the year.Custom storage -- Storage pit -- House-basement storage -- Earth-covered storage -- Sawdust-covered storage -- Frame storage with shell circulation -- Round-roofed storages -- Matanuska Experiment Station storag
Operation of transition edge sensors in a resistance locked loop
We propose to operate a superconducting transition edge sensor (TES) using a
different type of biasing, in which the resistance of the TES is kept constant
by means of feedback on the bias voltage and is independent of the incoming
signal power. By combining a large negative electrothermal feedback with a load
independent resistance, this approach can significantly linearise the response
of the detector in the large signal limit. The electrothermal feedback is
enhanced in comparison with the commonly applied voltage biasing, which further
increases the speed of the detector. Furthermore, in frequency domain
multiplexed (FDM) readout, the sinusoidal bias voltages for each TES can be
generated cryogenically with the readout SQUIDs.Comment: 4 pages, 2 figure
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