A new procedure for using envelope analysis for rolling element bearing diagnostics in variable operating conditions

In the field of rolling element bearing diagnostics envelope analysis, and in particular the squared envelope spectrum, have gained in the last years a leading role among the different digital signal processing techniques. The original constraint of constant operating speed has been relaxed thanks to the combination of this technique with the computed order tracking, able to resample signals at constant angular increments. In this way, the field of application of squared envelope spectrum has been extended to cases in which small speed fluctuations occur, maintaining the effectiveness and efficiency that characterize this successful technique. However, the constraint on speed has to be removed completely, making envelope analysis suitable also for speed and load transients, to implement an algorithm valid for all the industrial application. In fact, in many applications, the coincidence of high bearing loads, and therefore high diagnostic capability, with acceleration-deceleration phases represents a further incentive in this direction. This paper is aimed at providing and testing a procedure for the application of envelope analysis to speed transients. The effect of load variation on the proposed technique will be also qualitatively addressed.

Criminal Laws : Materials and Commentary on Criminal Law and Process in NSW [Fifth Edition]

"The success of Criminal Laws lies both in its distinctive features and in its appeal to a range of readerships. As one review put it, it is simultaneously a "textbook, casebook, handbook and reference work". As such it is ideal for criminal law and criminal justice courses as a teaching text, combining as it does primary sources with extensive critical commentary and a contextual perspective. It is likewise indispensable to practitioners for its detailed coverage of substantive law and its extensive references and inter-disciplinary approach make it a first point of call for researchers from all disciplines. This fifth edition strengthens these distinctive features. All chapters have been systematically updated to incorporate the plethora of legislative, case law, statistical and research material which has emerged since the previous edition. The critical, thematic, contextual and interdisciplinary perspectives have been continued."--Publisher's website. Table of Contents: 1. Some themes -- 2. Criminalisation -- 3. The criminal process -- 4. Components of criminal offences -- 5. Homicide: murder and involuntary manslaughter -- 6. Defences -- 7. Assault and sexual assault -- 8. Public order offences -- 9. Drugs offences -- 10. Dishonest acquisition -- 11. Extending criminal liability: complicity, conspiracy and association -- 12. Sentencing and penality.

Challenges to Criminal Justice Reform

The Promise of Law Reform the most comprehensive examination of the institutions and processes of law reform published in the common law world and provides a rich source of information, inspiration and ideas. It is an edited collection of 30 essays published to celebrate the 30th anniversary of the Australian Law Reform Commission. The authors - law reform commissioners, judges, academics, politicians, government officials, and journalists - reflect the plurality of law reform styles and structures, within Australia and overseas. They cover the broad themes of the history, purpose and function of law reform; institutional design of law reform agencies; methodology and operations; how successful law reform should be assessed and judged; cooperation and mutual assistance; other law reform initiatives; and law reform in action.

Royal Commissions and Criminal Justice : Behind the Ideal

Royal commissions are approached not as exercises in legitimation and closure but as sites of struggle that are heavily traversed by power holders yet are open to the voices of alternative and unofficial social groups, social movements, and individuals. Three case studies are discussed that highlight the hegemony of the legal methodology and discourse that dominate many inquiries. The first case, involving a single-case miscarriage inquiry, involves a man who was accused, convicted, and served a prison sentence for the murder of his wife. Nineteen years following the murder another man confessed to the crime. The official inquiry found that nothing had gone wrong in the criminal justice process; it had operated as it should. Thus, in the face of evidence that the criminal justice process may be flawed, the discursive strategy became one of silence; no explanation was offered except for the declaration that nothing had gone wrong. The fallibility of the criminal justice system was thus hidden from public view. The second case study examines the Wood Royal Commission into corruption charges within the NSW Police Service. The royal commission revealed a bevy of police misconduct offenses including process corruption, improper associations, theft, and substance abuse, among others. The author discusses the ways in which the other criminal justice players, the judiciary and prosecuting attorneys, emerge only briefly as potential ethical agents in relation to police misconduct and corruption and then abruptly disappear again. Yet, these other players are absolved of any responsibility for police misconduct. The third case study involves a spin-off inquiry into the facts surrounding the Leigh Leigh rape and murder case. This case illustrates how official inquires can seek to exclude non-traditional viewpoints and methodologies; in this case, the views of a feminist criminologist. The third case also illustrates how the adversarial process within the legal system allows those with power to subjugate the viewpoints of others through the legitimate use of cross-examination. These three case studies reveal how official inquiries tend to speak from an “idealized conception of justice” and downplay any viewpoint that questions this idealized version of the truth.

Searching for a social democratic narrative in criminal justice

Paul Keating recently noted that what the Rudd Government lacked was an overall narrative or story. I would like to argue that Paul Keating is correct and suggest a narrative: that of retrieving and defending aspects of our social democratic heritage from some of the damaging effects wrought by neo-liberalism. Moreover I want to argue that criminal justice policy needs to be seen as a part of this broader narrative, which requires it being prised from its current site, where it is wedged firmly in the narrative of law and order.

Does withdrawing life-sustaining treatment cause death or allow the patient to die?

The paper discusses the view of Franklin Miller and Robert Truog that withdrawing life-sustaining treatment causes death and so is a form of killing. I reject that view. I argue that even if we think there is no morally relevant difference between allowing a patient to die and killing her (itself a controversial view), it does not follow that allowing to die is a form of killing. I then argue that withdrawing life-sustaining treatment is properly classified as allowing the patient to die rather than as killing her. Once this is accepted, the law cannot be criticised for inconsistency by holding, as it does, that it is lawful to withdraw life-sustaining treatment but unlawful to give patients a lethal injection.

The use of headings and marginal notes in interpreting Queensland legislation : appearances can be deceptive

This article considers the rules relating to the use of marginal notes and headings in interpreting Queensland legislation, both in its original form and in reprinted legislation. It also examines the application of the principles of construction as to the use of section headings in the interpretation of provisions of the Criminal Code 1899 (Qld). Finally, it suggests that amendments should be made to the Acts Interpretation Act 1954 (Qld) in order to clarify the position as to the status of marginal notes and headings in statutory interpretation.

Practice & procedure : Personal Injuries Proceedings Act 2002

The decision of Atkinson J in Watkins v State of Queensland [2007] QSC 057 on an application for disclosure of documents under s27 of the Personal Injuries Proceedings Act 2002 (Qld) required determination of a range of issues relating to the disclosure of documents and legal professional privilege.

Practice & procedure : disclosure obligations - Personal Injuries Proceedings Act 2002 s27

In Huag v Jupiters Limited [2007] QCA 199 the Queensland Court of Appeal allowed an appeal from interlocutory orders made in the trial division of the court and concluded that, although provisions such as s27 of the Personal Injuries Proceedings Act 2002 (Qld) should be given a broad, remedial construction, this did not mean the words of limitation in the section could be ignored.

Practice & procedure : gratuitous services

In Carroll v Coomber [2006] QDC 146 the plainliff was injured in a motor vehicle accident on September 7, 2003. Liability was admitted and it remained to assess the plaintiff's damages. In light of the date of the accident, the damages were to be assessed under the Civil Liability Act 2003 (the act) and the Civil Liability Regulations.