Prospect of renewable energy sources and integrating challenges in Victoria, Australia

The Australian Government has targeted 20% of electricity generation from renewable energy sources by 2020. The 20% renewable energy target (RET) for Australia will be around 45000GWH in 2020. Renewable energy of Victoria also includes as part of support to achieve 20% RET in Australia. In Victoria wind and solar resources are abundant as compared to other sources of renewable energy. Solar radiation and wind speed data for Victoria State was collected from NASA surface meteorology and solar energy web site. A feasibility analysis has been carried out to explore the potentialities of wind and solar energy for Victoria State using hybrid optimization model of electric renewable (HOMER) software. This paper also represents the estimation analysis of RET for Victoria and describes the integrating challenges of renewable energy sources to the utility grid.

Nano titanium dioxide on wool keratin as UV absorber stabilized by butane tetra carboxylic acid (BTCA): a statistical prospect

Photo yellowing of wool is one of the most important problems which have negative impacts on various aspects of wool prompting scientists to find a solution over the past decades. In this research the protective features of nano-titanium dioxide particles against UV on wool fabric were discussed and the color variations of wool samples after UV irradiation were measured and reported. It was shown that nano TiO2 is a suitable UV absorber and its effect depends on the concentration. Also, it was assumed that butane tetracarboxylic acid plays a prominent role as a cross-linking agent to stabilize the nano-titanium dioxide as well as a polyanion to maintain negative charges on the wool surface for higher nano particles absorption. Also the variables conditions were optimized using response surface methodology (RSM).

No prospect of release: Kevin Crump and the human rights implications of life imprisonment

A NSW court last week dismissed Kevin Crump’s latest appeal against his natural life sentence. Crump, who has served nearly 42 years in prison for murder, has been formally denied any prospect of a meaningful life outside prison walls.

The decision provides a timely opportunity to reconsider the viability of terms of life without parole. It further entrenches the use of terms of life without parole in Australia despite moves overseas to restrict – and in some cases eradicate – them.

Welsh Patagonians the Australian connection

One hundred and fifty-one Welsh Patagonians migrated to Australia between 1910 and 1916. A similar number of Welsh had sailed away to Patagonia in 1865 to start their own self-sufficient colony along the Chubut River in southern Argentina, free to speak and teach in Welsh, worship as they pleased, and to govern themselves. A magnet to a better life in Australia was the prospect of legal title to their own land. Migrating as groups, they separately formed two ‘Welsh settlements’ along the Murrumbidgee River of New South Wales and around Moora-Miling in Western Australia. Two large families who went to Darwin never took up their promised land. Drought, depression and poor quality land eventually dispersed these immigrants to all parts of Australia. This book traces the unique experiences of an almost complete group of immigrants, whose extensive kinship and affiliations kept alive their stories long enough for them to be related in this book. Rich personal testimonies gleaned from oral histories with sixty-three descendants, together with genealogical information spanning generations, are blended here with library and archival research from four countries. The result is a fascinating story of the connections of these Welsh Patagonians to Australia. Australian immigration encouragement policies are seen through the experiences of the Welsh Patagonians, casting new light on the application of Australian immigration policies and settlement schemes in the early twentieth century.

Michele Langfield and Peta Roberts tell the epic story of the double migration of the hundreds of Welsh colonists who settled in southern Argentina and Chile after 1865, and who came on to Australia early last century.

Traces the family groups and tells their stories through interviews with the participants.

The Australian Constitution: A century of irrelevance

Why the Australian Constitution is irrelevant - while some aspects of the Constitution, such as the separation of powers doctrine, provide the prospect for a Constitution that is more committed to principles of relevance to the citizenry, consideration must be given to the role played by the Constitution in Australian society, and whether it is as important as it should be - effort spent interpreting many sections of the Constitution has been a waste of the High Court's time and energy - given that no important rights and duties are at stake, consistency should be the main objective for the Court in such cases - in the teaching of constitutional law, less time should be spent focusing on mechanistic case law - emphasis should be placed on the values and ideals that inform the content and development of constitutional principles.

Event valence and unrealistic optimism

The effect of event valence on unrealistic optimism was studied. 94 Deakin University students rated the comparative likelihood that they would experience either a controllable or an uncontrollable health-related event. Valence was manipulated to be positive (outcome was desirable) or negative (outcome was undesirable) by varying the way a given event was framed. Particiapants either were told the conditions which promote the event and rated the comparative likelihood they would experience it or were told the conditions which prevent the event and rated the comparative likelihood they would avoid it. For both the controllable and the uncontrollable events, unrealistic optimism was greater for negative than positive valence. It is suggested that a combination of the 'motivational account' of unrealistic optimism and prospect theory provides a good explanation of the results. 

Application of very-high-frequency (VHF) method to ceramic insulators

A VHF method (30-300 MHz) is applied to identify faults and defects in ceramic insulators. Insulators which exhibit internal cracks and fractures are used as test samples. Different artificial conditions are introduced to the test samples according to the IEC 507 standard under wet and dry conditions. Using a cascading signal processing technique and analysis methods such as FFT and fractal analysis, VHF signals acquired by digital scope are processed and analyzed. This study indicates that the fractal dimension can be used as an effective tool to isolate the common faulty conditions found on the ceramic insulators. The results from this study strongly support the prospect of using a VHF method to monitor the physical condition of ceramic insulators.

Factors affecting patch occupancy by the white-browed treecreeper Climacteris Affinis in an agricultural landscape in north-west Victoria, Australia

The survival of habitat-dependent fauna within agricultural mosaics depends on their ability to occupy remnant habitat patches and move through the modified landscape. In north-west Victoria, Australia, less than 10% of the pre-European extent of Selah Casuarina pauper woodland remains intact due to agricultural development. The White-browed Treecreeper Climacteris affinis, is a small, insectivorous passerine that, in this region, preferentially inhabits Selah woodland. To assess the ability of C. affinis to persist in an agricultural landscape, 30 woodland sites in the Millewa landscape (34°30'S, 141°30'E) were surveyed, and patterns of patch occupancy used to examine the influence of spatial characteristics, landscape context and grazing by stock on the suitability of remnants as C. affinis habitat. Sites occupied by C. affinis were larger and less likely to be grazed by stock than vacant patches. The area-dependency of patch occupancy represents a step-threshold: C. affinis were not detected in remnants with less than 18.5 ha of Selah woodland but above this threshold, density was not correlated with patch area. Measures of patch isolation, the existence of linking linear "corridors" and tree density were not reliable indicators of patch occupancy. The presence of the species in remnants entirely surrounded by agricultural land suggests they are capable of crossing up to 450 m of cultivated land to prospect for habitat. The extensive network of linear vegetation and the numerous small remnants and scattered trees appear to facilitate movements of C. affinis in this landscape. Increasing the size of existing remnants, creating new habitat to expand the area of occupancy and maintaining landscape connectivity are priorities for the long-term management of this threatened species.