• Bulletin of Korea Environmental Preservation Association
• /
• v.26 no.5_6
• /
• pp.51-58
• /
• 2004

모의 지역은 서부 호주에서 남쪽인 Busselton의 Vasse Research Station이다. 이 지역은 도살을 위해 소를 사육하는 가축사육장으로 이때문에 지하수가 질산성 질소를 비롯한 질소 화합물에 의해 심각하게 오염되었다.<중략>

• The Korean Journal of Soil Zoology
• /
• v.9 no.1_2
• /
• pp.16-23
• /
• 2004

This study estimated the mound and termite population density in the two study plots in Durokkopin Nature Reserve, Western Australia between 2003 and 2004. The mound density and size were greater in the woodland than in the shrubland. The annual growth rate of mounds was minimal. Some mounds decreased in volume during the 14 month observation period in both study plots. There were no significant differences in the termite population per mound or in the proportion of each caste between the two study plots. The size of the termite population in the mound progressively increased from the small to larger mounds. Overall, of the two favoured habitats, woodland appears to be more optimal for this termite species than the shrubland.

• Korean journal of applied entomology
• /
• v.33 no.3
• /
• pp.153-158
• /
• 1994

Vegetation rather than soil types, is the predominant factor in determining density and distribution of Dreponotermes tarnminensis (Hill) mounds within the Durokoppin Nature Reserve m Westem Austral~an wheatbelt D tomminensis mounds reach the hlghest densities m Woodland (dominated by Eucalyptus cap~llosa) and Casuarina (dominated by Allocasuarino campestris) vegetation assoc~ations. There appears to be no influence of soil type on mound dishibut~on. although higher mound densities tend to be found on the Booraan soil type.

• Applied Biological Chemistry
• /
• v.41 no.5
• /
• pp.367-371
• /
• 1998

The characteristics of four samples of noodle flours milled from Australian Standard White(ASW) wheat were compared with one sample of noodle flour prepared from a blend of hard red winter(HRW) and western white(WW) American wheats. The ASW flours had lower content of protein and ash. Farinograms revealed that the absorption of the ASW flours was slightly higher than that of the HRW-WW flour. The mixing time, however, showed no difference between ASW flours and HRW-WW flour. The stability and the mechanical tolerance index were different among ASW flours, which were lower than HRW-WW flour. The ratios of resistance to extention determined by extensigraph for ASW flours were higher except one flour than HRW-WW flour. The flours showed characteristic mean particle sizes, which may reflect the differences in hardness of wheat used in the flour production. Farinograph indices showed no correlations with protein content and extensigraph indices. The amylograph peak viscosity was inversely correlated with the protein content (p<0.05).

• 한국지구물리탐사학회:학술대회논문집
• /
• 2004.06a
• /
• pp.176-181
• /
• 2004

남${\cdot}$북 Bismarck 판은 호주판과 태평양 판 사이의 복잡한 판구조를 보이는 지역에 위치한다. 남${\cdot}$북 Bismarck 판 내부에서는 판구조 활동이 활발하게 일어나 지진의 발생빈도가 높고 활성 및 비활성화산이 많이 존재한다. 한국해양연구원은 Bismarck 해의 서부지역과 동 Manus 분지에서 판 경계부의 구조 및 열수구조의 밝히기 위하여 탄성파 탐사를 수행하였다. 탐사결과에 의하면 남${\cdot}$북 Bismarck 판의 경계부에는 주향이동단층대가 발달되어 있으며 이는 판의 경계를 나타내고 있다. PACMANUS 열수하부에는 돔 형태의 구조가 존재하며 이는 마그마 또는 이의 분화과정에서 형성된 지질학적인 구조로 추정된다.

• Economic and Environmental Geology
• /
• v.43 no.5
• /
• pp.429-441
• /
• 2010

The Sunrise Dam gold deposit is located approximately 850 km ENE of Perth, in the eastern part of the Yilgam Craton, Western Australia. The mine has produced approximately 153 t of Au at an average grade of 4.2 g/t, which stands for the most significant gold discoveries during the last decade in Western Australia. The deposit occurs in the Laverton Tectonic Zone corresponding to the corridor of structural complexity in the Laverton greenstone belt, and characterized by tight folding and thrusting. The mine stratigraphy consists of a complexly deformed and altered volcaniclastic and volcanic rocks. These have been overlain by a turbidite sequence containing generally well-sorted siltstones, sandstones and magnetite-rich shales, which are consistently fining upwards. These sequences have been intruded by quartz diorite, ultramafic dikes, and rhyodacite porphyry (Archean), and lamprophyre dikes (Palaeoproterozoic). These rocks constitute the asymmetric NNE-trending Spartan anticline with north-plunging thrust duplication of the BIF unit. The deposit is located on the western limb of this structure. Transported, fluvial-lacustrine and aeolean sediments lie unconformably over the deposit showing significant variation in relief. Gold mineralization occurs intermittently along a NE-trending corridor of ca. 4.5 km length. The 20 currently defined orebodies are centered on a series of parallel, gently-dipping ($\sim30^{\circ}$) and NESW trending shear zones with a thrust-duplex architecture and high-strain characteristics. The paragenetic sequence of the Sunrise Dam deposit can be divided into five hydrothermal stages ($D_1$, $D_2$, $D_3$, $D_4a$, $D_4b$), which are supported by distinctive features of the mineralogical assemblages. Among them, the D4a stage is the dominant episode of Au deposition, followed by the $D_4b$ stage, which is characterized by more diverse ore mineralogy including base metal sulfides, sulfosalts, and telluride minerals. The $D_4a$ stage contains higher proportions of microscopic free gold (48%) than D4b stage (12%), and pyrite is the principal host for native gold (electrum) followed by tetrahedrite-group minerals in both stages.

• Journal of Life Science
• /
• v.18 no.2
• /
• pp.143-147
• /
• 2008

This study estimated the mound litter biomass and the nutrient content of mound litter in the two study plots in Durokoppin Nature Reserve, Western Australia between 2004 and 2005. There were no significant differences in biomass of litter in individual mounds between the two study plots. Seven components of litter were found in the mounds. The nutrient concentrations were higher in the woodland than in the shrubland plot, although the differences were not statistically tested, and the total amount of each nutrient measured was generally greater in the woodland than in the shrubland plot. The aforementioned results show that D. tamminensis harvests various plant material according to biomass availability. The role of this termite takes on particular importance in view of the fact that Western Australian soils are notoriously impoverished in nutrients.

• Korean Journal of Food Science and Technology
• /
• v.37 no.3
• /
• pp.418-424
• /
• 2005

The physicochemical properties of raw noodle flours (n = 11) commercially produced from Australian Standard White (ASW) (Group 1, n = 8) and blonds (Group 2, n = 3) of ASW and Australian hard, western white or hard red winter were investigated. Protein and ash contents were lower in Group 1. The tristimulus color values, mean particle size, flour swelling volume (FSV) and rheological parameters of farinograph and extensigraph were not different between two flour groups. Peak viscosity measured with Rapid Visco Analyzer was higher in Group 1. The protein content was positively correlated with mean particle size, dough stability and dough extensibility, and negatively correlated with FSV and peak viscosity. The FSV wag positively correlated with the peak viscosity. The rheological parameters of dough did not show any correlations with FSV and peak viscosity.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2023.05a
• /
• pp.43-43
• /
• 2023

최근 기후변화로 인해 강수량 및 강우패턴이 변화하고 있으며, 기록적인 가뭄이나 홍수와 같은 극한사상의 발생빈도가 점차 증가하고 있다. 국외의 경우 2000년부터 2021년까지 미국 서부 지역에서 극한 가뭄사상이 발생하였으며, 호주에서는 2017년부터 2019년까지 호주 남동부와 뉴사우스웨일스 지역에 극심한 가뭄이 나타났다. 국내의 경우 2000년대에 들어서 가뭄이 국지적으로 빈번하게 발생하고 있으며, 2022년부터 20023년까지 전라남도 지역에 극심한 가뭄이 발생하였다. CMIP6(Climate Model Intercomparison Project Phase 6)는 기후변화에 관한 정부간 협의체(Intergovernmental Panel on Climate Change, IPCC) 6차 평가보고서 (Sixth Assessment Report, AR6)에서 기후 모델 간의 비교와 평가를 위해 설립된 국제 협업 프로젝트로 기후변화를 예측하기 위해 다양한 기후 모델을 사용하여 미래의 기후 시나리오를 제시하였다. SSP (Shared Socioeconomic Pathways) 시나리오는 CMIP6에서 사용되는 미래 사회경제적 발전 경로를 나타내며, 기후변화의 다양한 미래 상황을 평가 및 기후영향을 분석할 수 있다. 국내 논 용수는 주로 저수지와 같은 수리시설물을 통해 공급되는 반면, 밭 용수의 경우 수리시설물로부터 용수를 공급받는 관개전은 일부에 불과하고 대부분의 밭의 경우 용수공급을 강우에 의존하여 가뭄에 더욱 취약한 실정이다. 본 연구에서는 CMIP5 기후모델 기반 RCP (Representative Concentration Pathways) 시나리오 및 CMIP6 기후모델 기반 SSP 시나리오를 적용하여 미래 기후 데이터를 비교하고자 한다. 또한, 미래 기후변화 시나리오를 토양수분모형을 적용하여 미래 밭가뭄을 전망하고자 한다.

• Geophysics and Geophysical Exploration
• /
• v.11 no.1
• /
• pp.34-40
• /
• 2008

Underwater seismic refraction with advanced interpretation approaches makes important contributions to shallow marine exploration and geotechnical investigations in Australia's coastal areas. A series of case studies are presented to demonstrate the recent applications of continuous and static USR methods to river crossing and port infrastructure projects at various sites around Australia. In Sydney, static underwater seismic refraction (USR) with bottom-placed receivers and borehole seismic imaging assisted the development of improved geotechnical models that reduced construction risk for a tunnel crossing of the Lane Cove River. In Melbourne, combining conventional boomer reflection and continuous USR with near-bottom sources and receivers improved the definition of a buried, variably weathered basalt flow and assisted dredging assessment for navigation channel upgrades at Geelong Ports. Sand quality assessment with continuous USR and widely spaced borehole information assisted commercial decisions on available sand resources for the reclamation phase of development at the Port of Brisbane. Buried reefs and indurated layers occur in Australian coastal sediments with the characteristics of laterally limited, high velocity, cap layers within lower velocity materials. If these features are not recognised then significant error in depth determination to deeper refractors can occur. Application of advanced refraction inversion using wavefront eikonal tomography to continuous USR data obtained along the route of a proposed offshore pipeline near Fremantle allowed these layers and the underlying bedrock refractor to be accurately imaged. Static USR and the same interpretation approach was used to image the drowned granitic regolith beneath sediments and indurated layers in the northern area of Western Australia at a proposed new berthing site where deep piling was required. This allowed preferred piling sites to be identified, reducing overall pile lengths. USR can be expected to find increased application to shallow marine exploration and geotechnical investigations in Australia's coastal areas as economic growth continues and improved interpretation methods are developed.