Some aspects of high-torque, low-speed, brushless electric motors

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FAMILY TIES: THE RELATIONSHIP BETWEEN FAMILY AND WORKFORCE BEHAVIORS (RETENTION, SEPARATION, AND RE-ENTRY) IN THE ROYAL AUSTRALIAN AIR FORCE’S OFFICER AVIATION WORKFORCE

The Royal Australian Air Force (RAAF) delivers air power for the Australian Government. To produce and sustain the personnel capability that generates air power, the RAAF must understand the retention and separation behaviors of their Officer Aviation (OA) workforce. Given the tremendous importance that people place on both their families and their careers, this thesis explores the interaction between family and workforce behaviors in the RAAF's OA workforce. Using a series of linear probability models, I investigate the relationships between the separation characteristics of OA members and their family structure and composition. I further investigate the association between family composition and re-entry of OA members into the permanent service (after a period of separation). I find that within OA, being in a recognized relationship has a positive association with a member's retention, and that having children reduces the propensity to separate and increases the chance of re-entry. Parents do, however, separate at an increased rate after their eldest child commences schooling or when their family consists of one child. My research can be used to inform further workforce analysis. With a greater appreciation of the influence of family on employee behaviors, workforce strategists can refine human resource management policy, target specific family constructs, and improve capability generation and sustainment.Squadron Leader, Royal Australian Air ForceApproved for public release. Distribution is unlimited

Lightning safety psyche

How is lightning protection ranked in the field of safety science? What is the general perception of the public with regard to the risk of receiving a lightning strike to their building? How do business entities manipulate the psyche of the public in upsizing financial gains? What is the true risk of public adopting lightning protection techniques that have not been included in major international standards? Is the research presented so far in condemning the lightning protection systems rejected by the scientific community, well-conducted? Is tabooing of some lightning protection technologies a productive strategy in driving the public to adopt protection systems recommended by international (IEC) standards? This paper makes comprehensive attempts to answer these questions

Post traumatic cholesteatoma: a 2 case study

ABSTRACT Post traumatic cholesteatoma is a late but potentially lethal complication of trauma to the temporal bone. Patients may present with this complication between one to twenty five years, following the initial insult. Patients usually present with a hearing loss and foul smelling discharge from the ears. Imaging studies with a CT scan will confirm the clinical suspicion. The recommended management is a canal wall down mastoidectomy and total excision of the cholesteatoma sac

Concerns of the application of lightning protection risk assesment for small structures

International Standards on lightning protection risk assessment (IEC 62305-2: 2010) are well accepted and applied in many parts of the world. During the last few years a large number of lightning related accidents, especially due to direct strikes, have been reported from Asia and Africa where the lightning struck objects are small structures. Information gathered from several investigations done on these cases have been used to determine the level of protection needed for these structures as per the standard risk assessment. In many cases the outcome was the none-requirement of any LPS for such structures or a risk factor for direct strike probability which is less than the critical value. As there are millions of similar structures in these regions, we propose the development of a separate risk assessment algorithm for such structures, especially in underdeveloped countries

Multi-Format Document Verification System

The spread of fake documents claiming to be from official sources on social media has led to increasing levels of skepticism and uncertainty in modern society. Currently, there is no easy access method of verification for documents that can be adopted by the public. This paper proposes a method of a multi-format document verification scheme using digital signatures and blockchain. We employ digital signature algorithms to sign document contents extracted using Optical Character Recognition (OCR) methods and attach this signature to the document by converting it into a 2D barcode format. This code can then be used on a shared document to retrieve the document’s digital signature and OCR can be used to verify the signature. In addition to this, we also provide an alternative method of verification in the form of forgery detection techniques. These signed documents are stored in a decentralized storage solution backed by blockchain technology, increasing the solution's overall reliability and security