Exploring, evaluating and improving the development process for Military Load Carrying Equipment

This work sought to explore, evaluate and then improve the process of development for personal Military Load Carriage Equipment (MLCE), such as rucksacks. It was suspected that current MLCE had a number of user interaction deficiencies which should have been addressed during development. Three research questions were posed to determine: the influences on MLCE development, what needed improvement in MLCE development and how MLCE development could be improved. The work was based on eight studies conducted in three phases: the first to explore MLCE development and the observed deficiencies, the second to evaluate MLCE development, and the third to improve it. The chosen research strategy was henomenological, using a grounded theory methodology within which phenomena could emerge. Grounded theory approaches were adopted for this research because they were the best way in which to access the design domain. The research was framed within cycles of reflective action research to enable the researcher to re-orientate the enquiry to make the best use of the research opportunities that arose from the organisational context in which the research was sited. An initial investigation into the development of in-service equipment was done via a comparative case study, using documentary analysis and interviews with authorities in the field. Through this investigation it became clear that MLCE development was based on heuristics and tacit knowledge of manufacturing techniques, and collaboration between professional groups, including: materials / manufacturing, human systems, project management and military personnel. Deficiencies within MLCE development, determined through the comparative study, were validated against current practice through a further case study and additional evaluations. A comparison of outputs from these studies was then reviewed in a grounded manner to gain a holistic understanding of MLCE development. The interaction and importance of the various influences on MLCE development was then better understood, in particular the inadequate understanding of MLCE user needs, and requirement specification. To refine the possible avenues and target audience for an improvement of MLCE development stakeholder interviews were undertaken to develop a better understanding of how military user needs were gathered and applied. Following the interview survey, a tool was developed to analyse video and audio data of soldiers operating with MLCE on current operations. The tool was then reviewed by a panel of MLCE developers and stakeholders. The panel thought that the tool had a number of benefits to MLCE development: improving understanding of soldier environments, improved quality and reliability of information used in development, and as a conduit for concept evaluation. The research has provided a novel perspective on MLCE development, and provided a number of avenues upon which subsequent research could focus. The research has been able to make original contributions to understanding, albeit in a manner limited by the methodologies used.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Critical Veganism: A Posthuman Understanding of ‘Becoming With’ Others

This thesis lays the groundwork for a critical vegan orientation to posthuman communication research. Critical veganism attempts to do the least amount of harm to nonhuman beings, a shift that decenters the human in scholarship and focuses on the material realities of nonhuman beings. This orientation helps create a praxis for posthuman research that is in line with a new materialist approach to ontology, is anti-capitalist, and strives to do the least harm. Previous research methods tend to be anthropocentric in nature, thus leaving out nonhuman experiences from communication research. Using both autoethnography and multi-species ethnography as my methods, I apply a critical vegan orientation in ways that reimagine research methods from a posthuman perspective. The first application uses performative autoethnography to explore the inherently political and embodied nature of leaving animals off my plate in Evangelical Christian social contexts. The second application of critical veganism uses both autoethnography and multi-species ethnography to examine photos of cats that my sister and I took along the Camino de Santiago. These photos helped to open up the perspectives of other human pilgrims around us to the nonhuman beings sharing the Camino space. A critical vegan orientation better suits communication scholarship, urging us not only to include nonhuman others in our research, but to continue the conversation about best practices for doing so

Mathematical Modelling of Biomechanical Interactions between Backpack and Bearer during Load Carriage

This paper proposes a three-dimensional mathematical model of the biomechanical interactions between backpack and bearer during load carriage. The model considers both the coupled pack motions, which follow the torso, and also the longitudinal compliance and damping in the backpack suspension. The pack interaction forces and moments, acting on the bearer, are determined from kinematic relationships, equations of motion, and a dynamic pack suspension model. The parameters of the pack suspension model were identified from test data obtained using a load carriage test rig. Output from the load carriage mathematical model has been compared with measurement data during human gait and conclusions drawn with regard to the validity of the proposed approach

Technology 2000, volume 1

The purpose of the conference was to increase awareness of existing NASA developed technologies that are available for immediate use in the development of new products and processes, and to lay the groundwork for the effective utilization of emerging technologies. There were sessions on the following: Computer technology and software engineering; Human factors engineering and life sciences; Information and data management; Material sciences; Manufacturing and fabrication technology; Power, energy, and control systems; Robotics; Sensors and measurement technology; Artificial intelligence; Environmental technology; Optics and communications; and Superconductivity

Muscle activation patterns in shoulder impingement patients

Introduction: Shoulder impingement is one of the most common presentations of shoulder joint problems 1. It appears to be caused by a reduction in the sub-acromial space as the humerus abducts between 60o -120o – the 'painful arc'. Structures between the humeral head and the acromion are thus pinched causing pain and further pathology 2. Shoulder muscle activity can influence this joint space but it is unclear whether this is a cause or effect in impingement patients. This study aimed to observe muscle activation patterns in normal and impingement shoulder patients and determine if there were any significant differences. Method: 19 adult subjects were asked to perform shoulder abduction in their symptomatic arm and non-symptomatic. 10 of these subjects (age 47.9 ± 11.2) were screened for shoulder impingement, and 9 subjects (age 38.9 ± 14.3) had no history of shoulder pathology. Surface EMG was used to collect data for 6 shoulder muscles (Upper, middle and lower trapezius, serratus anterior, infraspinatus, middle deltoids) which was then filtered and fully rectified. Subjects performed 3 smooth unilateral abduction movements at a cadence of 16 beats of a metronome set at 60bpm, and the mean of their results was recorded. T-tests were used to indicate any statistical significance in the data sets. Significance was set at P<0.05. Results: There was a significant difference in muscle activation with serratus anterior in particular showing a very low level of activation throughout the range when compared to normal shoulder activation patterns (<30%). Middle deltoid recruitment was significantly reduced between 60-90o in the impingement group (30:58%).Trends were noted in other muscles with upper trapezius and infraspinatus activating more rapidly and erratically (63:25%; 60:27% respectively), and lower trapezius with less recruitment (13:30%) in the patient group, although these did not quite reach significance. Conclusion: There appears to be some interesting alterations in muscle recruitment patterns in impingement shoulder patients when compared against their own unaffected shoulders and the control group. In particular changes in scapula control (serratus anterior and trapezius) and lateral rotation (infraspinatus), which have direct influence on the sub-acromial space, should be noted. It is still not clear whether these alterations are causative or reactionary, but this finding gives a clear indication to the importance of addressing muscle reeducation as part of a rehabilitation programme in shoulder impingement patients

Grave Reminders

From ca. 1600 – 1000 BC, builders across southern Greece crafted thousands of rock-cut chamber tombs similar to earlier and contemporary ‘beehive’ tholos tombs. Both tomb styles were designed with multiple uses in mind, filling with the remains of funerals forgotten over generations of reuse. In rare cases, the tombs were used once or seemingly not at all, cleaned thoroughly or sealed and abandoned entirely. Rather than focus on the missing or muddled record of funeral and post-funeral activities, this book re-examines Mycenaean tomb architecture and the decisions that guided it. From minimalistic to monumental, builders designed tombs with forethought to how commissioners and witnesses would react and remember them. Patterns suggest that memories of what tombs should look like heavily influenced new construction toward recurring shapes and appropriate scales. The wider debates over cost from ‘architectural energetics’ and perception in Aegean mortuary behaviour are thus revisited. Both can find common purpose in labour measured through a relative index and collective memory – how labourers and patrons saw their work. That metric for comparison lies within a median standard: in this instance, tombs expressed in terms of correlative shape and simple labour investment of the earth and rock moved to create them. This was accomplished here through photogrammetric modelling of 94 multi-use tombs in Achaea and Attica, verifying a cost-effective alternative for local authorities warding off information loss through site destruction from looting and earthquakes. Since most labour models suggest the tombs were not burdensome, commissioners held extravagant building in check by weighing the social risks and rewards of standing out from the crowd

Grave Reminders : Comparing Mycenaean tomb building with labour and memory

From ca. 1600 – 1000 BC, builders across southern Greece crafted thousands of rock-cut chamber tombs similar to earlier and contemporary ‘beehive’ tholos tombs. Both tomb styles were designed with multiple uses in mind, filling with the remains of funerals forgotten over generations of reuse. In rare cases, the tombs were used once or seemingly not at all, cleaned thoroughly or sealed and abandoned entirely. Rather than focus on the missing or muddled record of funeral and post-funeral activities, this book re-examines Mycenaean tomb architecture and the decisions that guided it. From minimalistic to monumental, builders designed tombs with forethought to how commissioners and witnesses would react and remember them. Patterns suggest that memories of what tombs should look like heavily influenced new construction toward recurring shapes and appropriate scales. The wider debates over cost from ‘architectural energetics’ and perception in Aegean mortuary behaviour are thus revisited. Both can find common purpose in labour measured through a relative index and collective memory—how labourers and patrons saw their work. That metric for comparison lies within a median standard: in this instance, tombs expressed in terms of correlative shape and simple labour investment of the earth and rock moved to create them.This research is part of the ERC-Consolidator SETinSTONE project directed by Prof. dr. Ann Brysbaert and funded by the European Research Council under the European Union's Horizon 2020 Programme, ERC grant agreement number 646667.Material Culture Studies and Computer Science