Classification of ERTS-1 MSS data by canonical analysis

The objective of canonical analysis is to obtain the maximum separability among a number of catergories. The application of canonical analysis was investigated using the merged MSS ERTS-1 data for one area viewed on two dates. The effect of threshold values on classification regions and confusion regions was investigated

Identification and mapping of coal refuse banks and other targets in the anthracite region

ERTS-1 MSS data covering parts of Pennsylvania's southern and eastern middle anthracite coal fields were studied to determine how well accumulations of coal refuse could be identified and mapped by computer analysis and processing. Spectral signatures of coal refuse targets were similar to water, but had higher reflectances in all channels. Relative reflectances were in the order 4 5 or = 6 7. Although no underflight photography was at hand to judge mapping success, correlation was made, with 1:24,000 scale U.S.G.S. maps dated 1947 and 1948. Coal refuse targets correlated well with existing maps

ASTEP user's guide and software documentation

The Algorithm Simulation Test and Evaluation Program (ASTEP) is a modular computer program developed for the purpose of testing and evaluating methods of processing remotely sensed multispectral scanner earth resources data. ASTEP is written in FORTRAND V on the UNIVAC 1110 under the EXEC 8 operating system and may be operated in either a batch or interactive mode. The program currently contains over one hundred subroutines consisting of data classification and display algorithms, statistical analysis algorithms, utility support routines, and feature selection capability. The current program can accept data in LARSC1, LARSC2, ERTS, and Universal formats, and can output processed image or data tapes in Universal format

ERTS and aircraft multispectral scanner digital data users manual

There are no author-identified significant results in this report

Anchors aweigh: the sources, variety, and challenges of mission drift

The growing number of studies which reference the concept of mission drift imply that such drift is an undesirable strategic outcome related to inconsistent organizational action, yet beyond such references little is known about how mission drift occurs, how it impacts organizations, and how organizations should respond. Existing management theory more broadly offers initial albeit equivocal insight for understanding mission drift. On the one hand, prior studies have argued that inconsistent or divergent action can lead to weakened stakeholder commitment and reputational damage. On the other hand, scholars have suggested that because environments are complex and dynamic, such action is necessary for ensuring organizational adaptation and thus survival. In this study, we offer a theory of mission drift that unpacks its origin, clarifies its variety, and specifies how organizations might respond to external perceptions of mission drift. The resulting conceptual model addresses the aforementioned theoretical tension and offers novel insight into the relationship between organizational actions and identity

Does Competition Drive Community Structure? An Analysis of Grasshopper Competition

lnterspecific competition has been broadly defined as a negative-negative relationship between species that share a limiting resource. The impact of competition on ecological communities is a widely debated topic (Schoener 1982). Thus community structure is very complex and, in addition to competition, can be influenced by many factors, including climate, disease, parasites, and predation (Hairston et al. 1960; Stower & Greathead 1969; Wiens 1977). The importance of competition depends upon the importance of other processes (Welden & Slauson 1986)

Methanol Synthesis from Carbon Dioxide and Hydrogen over CuO/ZnO/ZrO2 promoted catalysts

Przeprowadzono badania wpływu promotorów Ce, Cr, Ga, La i Pd na aktywność katalizatora CuO/ZnO/ZrO2 w procesie syntezy metanolu z CO2 i H2. Katalizator otrzymano metodą homogenizacji z zastosowaniem kwasu cytrynowego wprowadzając niewielkie ilości promotorów. Aktywność katalizatorów badano prowadząc pomiary w ciśnieniowym reaktorze rurowym o stałym złożu katalizatora. Wykazano pozytywny wpływ promotorów, zwłaszcza Ga, La, Ce oraz Cr, na aktywność i selektywność katalizatora w badanym procesie.It has been well documented that the CuO/ZnO/ZrO2 catalyst shows high activity in the methanol synthesis from CO2 and H2. The CuO/ZnO/ZrO2 based catalysts were obtained by decomposing the citrate complexes, by adding small amount of promoters – Ce, Cr, Ga, La, Pd in order to improve the new catalyst’s catalytic properties. The catalytic activity was measured using a tubular high-pressure fixed bed reactor. The promoters were found to improve the catalytic activity and stability in the reaction of methanol synthesis from carbon dioxide and hydrogen. The positive influence of promoters, especially Ga, La, Ce and Cr on the activity and selectivity of the developed catalysts in the investigated process has been demonstrated