Manned simulations of the SRMS in SIMFAC

SIMFAC is a general purpose real-time simulation facility currently configured with an Orbiter-like Crew Compartment and a Displays and Controls (D and C) Subsystem to support the engineering developments of the Space Shuttle Remote Manipulator (SRMS). The simulation consists of a software model of the anthropomorphic SRMS manipulator arm including the characteristics of its control system and joint drive modules. The following are discussed: (1) simulation and scene generation subsystems; (2) the SRMS task in SIMFAC; (3) operator tactics and options; (4) workload; (5) operator errors and sources; (6) areas for further work; and (7) general observations

Microprocessor control of a wind turbine generator

A microprocessor based system was used to control the unattended operation of a wind turbine generator. The turbine and its microcomputer system are fully described with special emphasis on the wide variety of tasks performed by the microprocessor for the safe and efficient operation of the turbine. The flexibility, cost and reliability of the microprocessor were major factors in its selection

Calculus III: Taylor Series

We study functors from spaces to spaces or spectra that preserve weak homotopy equivalences. For each such functor we construct a universal n-excisive approximation, which may be thought of as its n-excisive part. Homogeneous functors, meaning n-excisive functors with trivial (n-1)-excisive part, can be classified: they correspond to symmetric functors of n variables that are reduced and 1-excisive in each variable. We discuss some important examples, including the identity functor and Waldhausen's algebraic K-theory.Comment: Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol7/paper19.abs.htm

A review of data analysis systems

This review gives an appraisal of 8 Automatic Time history reocrd analysis systems. The appraisal indicates the analytical capabilities, analysis flexibility and the cost involved in performing the analysis. It is suggested that in choosing such a system for an educational institution, some analysis speed and automation should be sacrificed for computational flexibility and operational adaptability. The review does not indicate that a specific machine be considered, but rather that an analysis system be built from a number of manufacturing sources

Generation Z’s Proclivity for Technological Communication: An Exploration into its Effects on Employers’ Perceptions of Gen Z and the Intergenerational Workplace

Gen Z’s proclivity for digital communication may be putting them at a disadvantage when shifting into professional settings. Generation Z is inclined to communicate differently than Millennials and Generation Y, the two generations that currently make up the largest percentage of the job market. The idea that Gen Z’s future employers prefer different styles of communication creates the risk of negatively influencing these employers’ perceptions of Gen Z’s professionalism and workplace capabilities. By interviewing 12 internship supervisors from varying industries amidst the Southeast who belong to Generations X and Y, the author explores the difference in communication styles between Generation Z and the X and Y Generations, in order to gain a greater understanding of whether these differences are negatively impacting Millennial and Gen X employers’ perceptions of Gen Z’s workplace potential

Physical and chemical factors contributing to the efficiency of separation units for the system naphthalene in coal tar oils

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The crystal structures of some methyleneamino and cyclopentadienyl complexes of main group metals

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Modelling fixed plant and algal dynamics in rivers: an application to the River Frome

The development of eutrophication in river systems is poorly understood given the complex relationship between fixed plants, algae, hydrodynamics, water chemistry and solar radiation. However there is a pressing need to understand the relationship between the ecological status of rivers and the controlling environmental factors to help the reasoned implementation of the Water Framework Directive and Catchment Sensitive Farming in the UK. This research aims to create a dynamic, process-based, mathematical in-stream model to simulate the growth and competition of different vegetation types (macrophytes, phytoplankton and benthic algae) in rivers. The model, applied to the River Frome (Dorset, UK), captured well the seasonality of simulated vegetation types (suspended algae, macrophytes, epiphytes, sediment biofilm). Macrophyte results showed that local knowledge is important for explaining unusual changes in biomass. Fixed algae simulations indicated the need for the more detailed representation of various herbivorous grazer groups, however this would increase the model complexity, the number of model parameters and the required observation data to better define the model. The model results also highlighted that simulating only phytoplankton is insufficient in river systems, because the majority of the suspended algae have benthic origin in short retention time rivers. Therefore, there is a need for modelling tools that link the benthic and free-floating habitats