Grizzly bear habitat analysis. Section 2: Evaluation of grizzly bear food plants, food categories and habitat

There are no author-identified significant results in this report

Satellite and ground radiotracking of elk

Radiotracking and monitoring of free-living animals in natural environments is providing an effective new technique for acquiring information on biological processes, including animal orientation and navigation. To test the practicability of extending the technique by using satellite systems for tracking animals, a female elk was instrumented with an electronic collar. It contained both the Interrogation Recording Location System (IRLS) transponder and a Craighead-Varney ground-tracking transmitter. The elk was successfully tracked and monitored by satellite during month of April 1970. This was the first time an animal had been tracked by satellite on the surface of the earth

Party Booby Trap

Thomson & Craighead present their first fragrance Apocalypse (2016) in Party Booby Trap, the duo’s second solo show at Carroll / Fletcher. The scent will be showcased alongside a series of major new works inspired by sources ranging from nuclear waste to self-help literature and genetics. The late 20th century saw one of the most significant scientific advances to date, with the first mapping of a human genome (an individual’s complete DNA set) by the international Human Genome Project. It took thirteen years and twenty universities to reference over three billion base pairs of nucleotides (DNA molecules) that compose one single genome. This process has inspired Thomson & Craighead’s Stutterer (2014), a video installation the artists describe as a “poetry machine.” There are four types of DNA: adenine, cytosine, guanine, and thymine, commonly referred to as A, C, G, and T. The artists seized the creative opportunity afforded by the combination of a sequence of letters and a crucial tranche of recent history. The time it took to complete the Human Genome Project spanned the liberation of Nelson Mandela in 1990 and the fall of Baghdad to the allied military coalition in 2003. Supported by the Wellcome Trust, Stutterer (2014) pairs each letter of the first human genome with a word beginning with the same letter, spoken in television footage from the period. The result is a televisual portrait of an era which encompassed not only the First and the Second Gulf Wars, but also the collapse of the Soviet Union, the deaths of Yitzhak Rabin and Princess Diana, the first cloned sheep Dolly, the launch of Viagra and the shootings at Columbine High School. In October 2002, then-President George W. Bush declared that Iraq was in possession of chemical and biological weapons which “threatened America and the world” – an allegation which is now widely acknowledged as one of the main triggers for the Second Gulf War (2003-11). “Confronting the threat posed by Iraq,” he said, “is crucial to winning the War on Terror.” Thomson & Craighead’s print the war on terror (2016) plays with the phrase in a series of Oulipo-esque anagrams: “the rot narrower”, “tarot hewn error”, “rare tower thorn.” Made with a type-writer on a white sheet of paper like a piece of experimental poetry, these hint at the absurdity of the chain of events that led to the death of hundreds of thousands of civilians in less than a decade. Multi-coloured balloons bearing the names of military operations from “Desert Storm” to “Urgent Fury” crowd the floor. These innocuous presences – absent-mindedly kicked about by visitors as they progress through the exhibition – function as gentle reminders of the pervasive nature of warfare. On a TV screen, some women dutifully pop the balloons after a corporate party, as if trying to contain a reality that could overwhelm them. Created in collaboration with perfumer Euan McCall, the fragrance Apocalypse combines the scents of olfactory elements described in The Book of Revelation, including burnt flesh, incense and blood. Presented in a velvet-lined box, it turns a central tenet of the Western imaginary, and a canonical representation of End Times, into a luxury, limited edition item. At once highly desirable and sickening, the piece is the product of a time in which both consumerism and politics feed on fear, mysticism and fallacies of all stripes. With the series of posters Common Era (2016), Thomson & Craighead gather a collection of predictions for the end of the world: from Nostradamus – who famously declared that all would be over in 1999 – to Canadian philosopher John A. Leslie, who more optimistically estimated it would be by the year 11120. The soft palette and hand-made feel of these text pieces stands in stark contrast with their sensationalist content. They almost recall the mindfulness colouring books that topped the best-selling charts in 2015. While broadcasting collective anxiety about the destruction of humanity and “the world as we know it,” they bring the viewers towards something much more intimate, to do with personal angst and the quest for happiness. Help Yourself and A Temporary Index (both 2016), articulate this push-and-pull between concern for the common good and individual fulfilment. The first piece combines found digital video material, originally designed to prevent the on-screen accumulation of dead pixels, and a series of self-improvement tapes. Viewers can navigate them – going from, say, “how to attract money” to “weight loss” or, “sales motivation” by plugging headphones into different sockets. Meanwhile, on a large free-standing screen, A Temporary Index gives, in seconds, the estimated time it will take for sites storing entombed radioactive waste to be safe again for humans. These range from a few decades to a million years. The numbers are presented vertically and doubled up, standing like totems. Thus abstracted, they are almost as incomprehensible as the durations they represent. Party Booby Trap (the title is a palindrome, like most of Thomson & Craighead’s exhibition titles) splices these temporalities: the deep time of nuclear decay and apocalyptic visions is put side by side with the dizzying brevity of the human lifespan (or a political career). The exhibition harks back to a seminal religious text, and links it to belief systems of all kinds, arguably including democracy, science and art itself

Grizzly bear habitat analysis. Section 3: LANDSAT-1 multispectral imagery and computer analysis of grizzly bear habitat

There are no author-identified significant results in this report

The application of current transformers to three-phase circuits

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Design, development and mechanization of a precision deployable truss with optimized structural efficiency for spaceborne applications

A deployable mast concept which meets the weight, size and stability requirements for a feed support structure for offset antennas up to 100 meters in diameter is discussed. A triangulated truss configuration, the use of tapered tubes which exhibit a high strength-to-weight ratio, and low CTE graphite-epoxy material are seen to provide an efficient, lightweight and stable truss suitable for an antenna feed support. A low stowage ratio of 30:1 is achieved through a unique preloaded hinge located at the center of each longeron and an autonomous deployment cage with a drive mechanism. Initial analysis and proof of concept hardware validated the basic mechanism and design assumptions and provided a basis for further investigation. The concept can readily accept variations in member size and thus lends itself to optimization for other potential uses where a stiff, lightweight deployable truss is needed

Joint for deployable structures

A joint is described for connecting a pair of beams to pivot them between positions in alignment or beside one another, which is of light weight and which operates in a controlled manner. The joint includes a pair of fittings and at least one center link having opposite ends pivotally connected to opposite fittings and having axes that pass through centerplates of the fittings. A control link having opposite ends pivotally connected to the different fittings controls their relative orientations, and a toggle assemly holds the fittings in the deployed configuration wherein they are aligned. The fittings have stops that lie on one side of the centerplane opposite the toggle assembly

A Population Analysis of the Yellowstone Grizzly Bears

Paper published as Bulletin 40 in the UM Bulletin Forestry Series.https://scholarworks.umt.edu/umforestrybulletin/1024/thumbnail.jp