Derivation of turbulent energy of fiber suspensions

The energy equation for turbulent flow of fiber suspensions was derived in terms of second order correlation tensors. Fiber motion of turbulent energy including the correlation between pressure fluctuations and velocity fluctuations was discussed at two points of flow field, at which the correlation tensors were the functions of space coordinates, distance between two points, and time.

Addressing the curious black spot that is the separation between the principle of legality and sentencing

The principle of legality has evolved into a clear and entrenchedjurisprudential mechanism for protecting common law rights and freedoms. It operates as a shield to preserve the scope of application of fundamental rights and fre edoms. In recent years it has been increasingly applied by the courts to limit the scope of legislative provisions which potentially impinge on human rights and fundamental freedoms. Yet there is one domain where the principle of legality is conspicuously absent: sentencing. Ostensibly, this is paradoxical. Sentencing is the realm where the legalsystem operates in its most coercive manner against individuals. In thisarticle, we argue that logically the principle of legality has an importantrole in the sentencing system given the incursions by criminal sanctionsinto a number of basic rights, including the right to liberty, the freedom ofassociation and the deprivation of property. By way of illustration, we setout how the principle of legality should apply to the interpretation of keystatutory provisions. To this end, we argue that the objectives of generaldeterrence and specifi c deterrence should have less impact in sentencing. It is also suggested that judges should be more reluctant to send offenders with dependants to terms of imprisonment. Injecting the principle of legality into sentencing law and practice would result in the reduction in severity of a large number of sanctions, thereby reducing the frequency and extent to which the fundamental rights of offenders are violated. The methodology set out in this article can be applied to alter the operation of a number of legislative sentencing objectives and rules.

Excessive criminal punishment amounts to punishing the innocent : an argument for taking the parsimony principle seriously

Punishing the innocent is incontestably repugnant. Punishing offenders more harshly than is justified is a form of punishing the innocent, yet this practice is commonplace in the United States. This Article sets out a normative argument in favor of less severe penalties for many forms of offenses. There is already an established principle, which limits punishment to the minimum amount of hardship that is required to achieve the objectives of sentencing. The principle is termed “parsimony” and is widely endorsed. Yet, in reality, it is illusory. It has no firm content and in its current form is logically and jurisprudentially incapable of grounding a persuasive argument for more lenient sentences. This Article gives content to the principle of parsimony. It is argued that application of the principle will result in a considerable reduction in the number of offenders who are sentenced to imprisonment and shorter sentences for many offenders who are jailed. The recommendations in this Article will enhance the fairness and transparency of the sentencing system. The argument is especially important at this point in history. The United States is experiencing an incarceration crisis. The principle of parsimony, properly applied, is an important key to ameliorating the incarceration problem. The Article also examines the operation of the parsimony principle in Australia. Unlike sentencing courts in the United States, Australian judges enjoy considerable discretion in sentencing offenders. Despite the vastly different approach to sentencing in Australia, it too is experiencing a considerable increase in the incarceration rate. It emerges that the courts in a tightly regimented sentencing regime (the United States) and a mainly discretionary system (Australia) effectively ignored the parsimony principle. It is not the strictures in the United States that curtail the imposition of parsimonious sentences; rather, it is the absence of a forceful rationale underpinning the principle and a lack of clarity regarding the attainable objectives of sentencing. This Article addresses these shortcomings. In doing so, it paves the way for fundamentally fairer sentencing outcomes in the United States and Australia.

Derivation of dynamic material properties of steel-fibre-reinforced concrete using kernel regression

The reliable and efficient design of steel-fibre-reinforced concrete (SFRC) structures requires clear knowledge of material properties. Since the locations and orientations of aggregates and fibres in concrete are intrinsically random, testing results from different specimens vary, and it needs hundreds or even thousands of specimens and tests to derive the unbiased statistical distributions of material properties by using traditional statistical techniques. Therefore, few statistical studies on the SFRC material properties can be found in literature. In this study, high-rate impact test results on SFRC using split Hopkinson pressure bar are further analysed. The influences of different strain rates and various volume fractions of fibres on compressive strength of SFRC specimens under dynamic loadings will be quantified, by using kernel regression, a kernel-based nonparametric statistical method. Several kernel estimators and functions will be compared. This technique allows one to derive an unbiased statistical estimation from limited testing data. Therefore it is especially useful when the testing data is limited.

The principle of legality and contemporanea exposition est optima et fortissima in lege

If the principle of legality operates to obscure from Parliament the common law (rights) backdrop against which it legislates, the clarity or rights-sensitivity of that legislation cannot be improved. This undercuts, rather than promotes, the democratic and rule of law values that underpin the modern conception of the principle and its contemporary normative justification. So the courts must strive to give Parliament the clearest possible picture as to the content of the fundamental common law rights it seeks to protect and, depending on the right, freedom, or principle in legislative play, the strength with which the principle will be applied in order to do so. Parliament (and parliamentary counsel) can only ‘squarely confront’ those fundamental rights the existence and content of which was known at the time of legislating. The proposition which, necessarily, follows is that the rule of contemporanea exposition est optima et fortissimo in lege must be revived when judges apply the principle of legality to the construction of statutes. If the courts are to maintain and take seriously the normative justification for the principle then its application to the construction of statutes can only operate to protect from legislative encroachment those fundamental rights existing at the time the statute was enacted.