Self-balancing beam permits safe, easy load handling under overhang

The use of a self-balancing I-beam with a counterweight and motor simplifies moving heavy loads that are inaccessible for cranes. The beam cannot be overloaded, as the counterweight will not balance the load, and thus acts as an automatic safety device

Integrating Employment Contracts and Comparisons: What One Can Teach Us about the Other

This study examines the events that trigger individuals to consider the social exchanges involved in their employment relationships. Integrating social comparison and psychological contract literature streams, a parallel is drawn between system-referent comparisons and psychological contract evaluations. We hypothesize that self- and other-referent comparisons may be human triggers for engaging in this type of comparison. A variety of structural triggers are also proposed to influence psychological contract evaluations. This field study examines these primary and secondary contract makers as social comparison triggers. Results support the hypotheses that the triggers identified predict psychological contract evaluation and that psychological contract breach is correlated with these evaluations. Implications for future research and managerial practice are discussed

Spitzer observations of Abell 1763. III. The infrared luminosity function in different supercluster environments

Context. The study of galaxy luminosity functions (LFs) in different environments provides powerful constraints on the physics of galaxy evolution. The infrared (IR) LF is a particularly useful tool since it is directly related to the distribution of galaxy star-formation rates (SFRs). Aims. We aim to determine the galaxy IR LF as a function of the environment in a supercluster at redshift 0.23 to shed light on the processes driving galaxy evolution in and around clusters. Methods. We base our analysis on multi-wavelength data, which include optical, near-IR, and mid- to far-IR photometry, as well as redshifts from optical spectroscopy. We identify 467 supercluster members in a sample of 24-μm-selected galaxies, on the basis of their spectroscopic (153) and photometric (314) redshifts. IR luminosities and stellar masses are determined for supercluster members via spectral energy distribution fitting. Galaxies with active galactic nuclei are identified by a variety of methods and excluded from the sample. SFRs are obtained for the 432 remaining galaxies from their IR luminosities via the Kennicutt relation. Results. We determine the IR LF of the whole supercluster as well as the IR LFs of three different regions in the supercluster: the cluster core, a large-scale filament, and the cluster outskirts (excluding the filament). A comparison of the IR LFs of the three regions, normalized by the average number densities of r-band selected normal galaxies, shows that the filament (respectively, the core) contains the highest (respectively, the lowest) fraction of IR-emitting galaxies at all levels of IR luminosities, and the highest (respectively, the lowest) total SFR normalized by optical galaxy richness. Luminous IR galaxies (LIRGs) are almost absent in the core region. The relation between galaxy specific SFRs and stellar masses does not depend on the environment, and it indicates that most supercluster LIRGs are rather massive galaxies with relatively low specific SFRs. A comparison with previous IR LF determinations from the literature confirms that the mass-normalized total SFR in clusters increases with redshift, but more rapidly than previously suggested for redshifts ≲ 0.4. Conclusions. The IR LF shows an environmental dependence that is not simply related to the local galaxy density. The filament, an intermediate-density region in the A1763 supercluster, contains the highest fraction of IR-emitting galaxies. We interpret our findings within a possible scenario for the evolution of galaxies in and around clusters

The fine illusion of free will\u27 : autonomy and selfhood in the major prose works of Evelyn Scott

In a letter to Emma Goldman, Evelyn Scott defended her rejection of both Marxist doctrine and middle class philistinism: “‘And individualists like myself— incurable believers in what has now become demode as a romantic movement—are caught between the Scilla [sic] of bourgeois obtuseness and the Charibdis [sic] of a radicalism that rejects appeal on the only grounds that are moving and arresting to people who love a free spirit\u27 (ES qtd. in Callard 104). But in a passage in her experimental autobiography Escapade. Scott admitted the weaknesses of her faith in the romantic ego . The enigma of myself is the failure of romanticism to satisfy a being fundamentally romantic (E 123). The tension between these two passages is one that is played out in the major prose works of Evelyn Scott\u27s canon; in her autobiographical Escapade, in three of her most successful novels, The Narrow House, The Wave, and Breathe Upon These Slain, and in her unpublished novel, the late work Escape into Living. Whether the ideal of autonomous selfhood is truly attainable, or even possible, is the question these texts try to answer. Considered a significant artist in the 1920s and \u2730s, Scott for several decades had been a largely forgotten writer. A recuperation of Evelyn Scott\u27s canon is under way in the 1990s, however, as evidenced by the recent publication of Mary Wheeling White\u27s biography. Moreover, recent rethinkings of women\u27s writing, as articulated by critics such as Mary Jacobus, Estelle Jelinek, and Sidonie Smith, should aid the critical recovery of Scott\u27s work. My study commences with an examination of Escapade. Scott\u27s daringly original autobiography. With its themes of domestic entrapment, its examination of female subjectivity, and its strikingly original prose style. Escapade provides an important touchstone for Scott\u27s early fiction. Emerging from this discussion of the autobiography, I examine three novels representative of the major stages in Evelyn Scott\u27s fiction: The Narrow House shows Scott examining feminist concerns through the lens of literary naturalism; The Wave constitutes Scott\u27s most successful foray into modernism as she subverts and reworks the form of the historical novel, all the while examining the possibilities for the freedom and integrity of the individual caught up in the inexorable forces of history; in Breathe Upon These Slain. Scott becomes one of the first twentieth-century practitioners of metafiction, thus pushing her concerns for the autonomy of the self up to the boundaries of postmodernism. The final stage in this work includes a reading of Scott\u27s unpublished novel, Escape into Living, a text in which Evelyn Scott\u27s fierce devotion to individualism seems finally to have faded, returning her, in a sense, to the naturalistic doom that permeates her earliest work. By undertaking such a project, I hope to encourage a serious reevaluation of Evelyn Scott\u27s canon. Indeed, as Jean Radford urges us to ask new questions of old texts and search out new voices from the modernist period, Evelyn Scott\u27s innovative but long neglected corpus of work provides a compelling opportunity to do both

Processing Internal Hard Drives - cover page

As archives receive born digital materials more and more frequently, the challenge of dealing with a variety of hardware and formats is becoming omnipresent. This paper outlines a case study that provides a practical, step-by-step guide to archiving files on legacy hard drives dating from the early 1990s to the mid-2000s. The project used a digital forensics approach to provide access to the contents of the hard drives without compromising the integrity of the files. Relying largely on open source software, the project imaged each hard drive in its entirety, then identified folders and individual files of potential high use for upload to the University of Texas Digital Repository. The project also experimented with data visualizations in order to provide researchers who would not have access to the full disk images—a sense of the contents and context of the full drives. The greatest challenge philosophically was answering the question of whether scholars should be able to view deleted materials on the drives that donors may not have realized were accessible

User's manual for Axisymmetric Diffuser Duct (ADD) code. Volume 1: General ADD code description

This User's Manual contains a complete description of the computer codes known as the AXISYMMETRIC DIFFUSER DUCT code or ADD code. It includes a list of references which describe the formulation of the ADD code and comparisons of calculation with experimental flows. The input/output and general use of the code is described in the first volume. The second volume contains a detailed description of the code including the global structure of the code, list of FORTRAN variables, and descriptions of the subroutines. The third volume contains a detailed description of the CODUCT code which generates coordinate systems for arbitrary axisymmetric ducts

The effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loading

In this work the evolution of the residual stresses in a MIG-welded 2024-T3 aluminium alloy M(T) specimen during in situ fatigue crack growth at constant load amplitude has been measured with neutron diffraction. The plastic relaxation and plasticity-induced residual stresses associated with the fatigue loading were found to be small compared with the stresses arising due to elastic re-distribution of the initial residual stress field. The elastic re-distribution was modelled with a finite element simulation and a good correlation between the experimentally-determined and the modelled stresses was found. A significant mean stress effect on the fatigue crack growth rate was seen and this was also accurately predicted using the measured initial residual stresses