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Artykuły w czasopismach na temat „Fluid mud map”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Yonnana, Ezekiel, and Raji Aminu. "Assessment of Hydrogeomorphic Suitability of Lake Mbemun for Socio-cultural Fishing Festival in the Bachama Chiefdom, Adamawa State, Northeastern Nigeria." Journal of Geography, Environment and Earth Science International 10, no. 3 (2017): 1–9. https://doi.org/10.9734/JGEESI/2017/33534.

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The feasibility of socio cultural fishing in any fluviatile lake strongly depends on water and fluid mud depths of the lake. In this study, the suitability of Lake Mbemun for a socio cultural fishing festival has been examined. Using the data obtained from hydrographic survey, Bathymetric and fluid mud depth maps of the lake for March 2016 were prepared. Both maps were used for hydro geomorphologic analyses of the lake. Results showed that the lake had a fetch of 2.95 km, a maximum width of 2.01 km and a surface area of 3.65 km<sup>2</sup>, making it widely opened to wind and waves impacts whi

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Bravo, Maria Cecilia, Alexandra Cely, Gulnar Yerkinkyzy, et al. "A Novel Method to Map Heavy Oil Viscosity From Standard Mud Gas – A Field Case From the Peregrino Field." Petrophysics – The SPWLA Journal of Formation Evaluation and Reservoir Description 65, no. 4 (2024): 507–18. http://dx.doi.org/10.30632/pjv65n4-2024a6.

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Peregrino is a heavy oil field in the Campos Basin offshore Brazil. The field started production in 201, and Phase 2 was on stream in 2022. More development drilling is ongoing. The oil viscosity in Phase 2 has large variations from limited exploration wells, ranging from 30 to 180 cp. Any changes in the viscosity in the reservoirs can lead to a large difference in oil recovery. Therefore, updating the viscosity distribution in the reservoirs along with the development drilling is important. Different methods can acquire reservoir oil viscosity, including downhole logging and sampling, mud gas

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Mihai, Andrei, Alexandra Gerea, Dragoș Tataru, Eduard Nastase, and Bogdan Grecu. "A Geophysical Investigation of the Pâclele Mici Mud Volcano in Romania Using Deep Geoelectrical Surveys." Applied Sciences 14, no. 6 (2024): 2463. http://dx.doi.org/10.3390/app14062463.

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This work presents a case study of a geoelectrical exploration of understudied mud volcanoes in Romania, specifically the Pâclele Mici mud volcano from Buzău County. Using a geoelectrical technique facilitated by the distributed network of V-FullWaver equipment, we present, to our knowledge, the first deep 3D case study of a mud volcano in the country. The findings indicate that while geoelectrical surveys in such environments are met with important challenges in terms of soil conductivity, they nonetheless provide a viable approach to uncovering the complex structures and processes of mud vol

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Haerudin, Nandi, Wahyudi, Dikdik Risdianto, and Wiwit Suryanto. "Application of Radon Isotopes to Determine Permeable Zones in Rajabasa Geothermal Field, Indonesia." Applied Mechanics and Materials 771 (July 2015): 165–69. http://dx.doi.org/10.4028/www.scientific.net/amm.771.165.

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This study aims to determine permeable zones (i.e. fault or fracture zones) in the Rajabasa geothermal field using radon isotopes. Radon concentration of soil gas was measured by Scintrex Radon detector RDA 200 consisting of 123 measurement station. The measurement site spacing are between 200 m and 350 m. The Radon concentration was classified based on a statistical approach, i.e. low, high and very high. Very high value of Radon concentration, called Radon anomaly, associated with permeable zones. From the Radon anomaly contour map, a 2D Radon migration from the source to the surface was mod

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Esposito, Antonietta M., Walter De Cesare, Giovanni Macedonio, and Flora Giudicepietro. "Efficient SOM’s Application to Seismic Fumarolic Tremor for the Detection of Anomalous Hydrothermal Activity in Campi Flegrei Volcano (Italy)." Applied Sciences 13, no. 9 (2023): 5505. http://dx.doi.org/10.3390/app13095505.

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In recent decades, the Campi Flegrei caldera (Italy) showed unrest characterized by increases in seismicity, ground uplift, and hydrothermal activity. Currently, the seismic and hydrothermal phenomena are mostly concentrated in the Solfatara–Pisciarelli area, which presents a wide fumarolic field and mud emissions. The main fumarole in Pisciarelli is associated with a boiling mud pool. Recently, episodes of a sudden increase in hydrothermal activity and expansion of mud and gas emissions occurred in this area. During these episodes, which occurred in December 2018 and September 2020, Short Dur

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6

Dhiyaulhaq, I. D., I. W. Warmada, and A. Setianto. "Machine Learning for Mapping the Distribution of Clay Minerals in Sidoarjo Mud Volcano (LUSI) Using Support Vector Machine (SVM) Algorithm." IOP Conference Series: Earth and Environmental Science 1373, no. 1 (2024): 012062. http://dx.doi.org/10.1088/1755-1315/1373/1/012062.

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Abstract Sidoarjo Mud Volcano (LUSI) is a natural phenomenon that has led to the emergence of volcanic mud eruptions in the city of Sidoarjo, East Java Province, with a generated volume of volcanic mud of approximately 80.000 m3 per day. However, only about 60.000 m3 can be managed daily, resulting in an excess of volcanic mud that accumulates and overflows into the surrounding area from the center of the mud eruption. This volcanic mud include high-temperature gas and fluid, which pose significant obstacles and limitations for conducting research at the location. Remote sensing methods, which

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7

Yanko, V. V., O. S. Dikol, S. V. Kadurin, G. O. Kravchuk, V. M. Kadurin, and T. O. Kondariuk. "SAFETY COMPONENT OF STUDYING THE UNLOADING OF DEEP FLUID FLOWS ON THE BLACK SEA FLOOR." Odesa National University Herald. Geography and Geology 29, no. 2(45) (2025): 150–65. https://doi.org/10.18524/2303-9914.2024.2(45).318042.

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Problem Statement and Purpose. The achievements of geological science together with the forecast of new mineral resources, especially oil and gas in the marine environment, have also revealed natural phenomena that exist on the Black Sea bottom and imply substantial risk. These include (1) methane emissions through seeps and gas plumes that are prone to spontaneous catastrophic combustion and (2) eruptions of mud volcanoes accompanied by the release of breccia and mineralized solutions of deep fluids that change the physical and chemical properties of the seawater. Obviously, these natural phe

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8

RYAN, JAROD, MARKUS BUSSMAN, and NIKOLAI DEMARTINI. "CFD and predictive modeling of temperature and calcination in a rotary lime kiln – Potential for steadier kiln operation." TAPPI Journal 23, no. 10 (2024): 545–58. http://dx.doi.org/10.32964/tj23.10.545.

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Rotary lime kilns are used in the pulp and paper industry to calcine lime mud to lime. Lime kiln models provide a means to understand the complex phenomena occurring within the kiln to aid in problem-solving during operation. A two-dimensional (2D) computational fluid dynamics (CFD) and one-dimensional (1D) bed model was previously developed for steady-state and transient analysis. This study explores data extracted from the model over a longer time period. The simulated outlet gas and shell temperature are compared to measured data for validation. The capability of using the model to estimate

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9

Greene, H. Gary, J. Vaughn Barrie, Daniel S. Brothers, et al. "Slope failure and mass transport processes along the Queen Charlotte Fault Zone, western British Columbia." Geological Society, London, Special Publications 477, no. 1 (2018): 85–106. http://dx.doi.org/10.1144/sp477.31.

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AbstractMultibeam echosounder (MBES) images, 3.5 kHz seismic-reflection profiles and piston cores obtained along the southern Queen Charlotte Fault Zone are used to map and date mass-wasting events at this transform margin – a seismically active boundary that separates the Pacific Plate from the North American Plate. Whereas the upper continental slope adjacent to and east (upslope) of the fault zone offshore of the Haida Gwaii is heavily gullied, few large-sized submarine landslides in this area are observed in the MBES images. However, smaller submarine seafloor slides exist locally in areas

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Browning, James V., Kenneth G. Miller, W. John Schmelz, and Peter J. Sugarman. "Eocene sequences and forward modeling of the New Jersey coastal plain, U.S.A.: changing depositional styles in response to climate and sea level." Journal of Sedimentary Research 95, no. 2 (2025): 383–404. https://doi.org/10.2110/jsr.2024.069.

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ABSTRACT We map the spatial and temporal distribution and depositional environments of Eocene sequences and formations in the New Jersey Coastal Plain, USA, using an array of coreholes and gamma logs. On this passive margin, Eocene depositional systems reflect a change from prograding earliest Eocene mud lobes, to early to middle Eocene hemipelagic ramp, and finally to late middle Eocene prograding sandy sequences. The Marlboro Clay, containing the Paleocene–Eocene Thermal Maximum (PETM), was deposited as prograding fluid mud during times of high global temperatures; it is found in northern an

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Gentilucci, Matteo, Niccolò Pelagagge, Alessandro Rossi, Aringoli Domenico, and Gilberto Pambianchi. "Landslide Susceptibility Using Climatic–Environmental Factors Using the Weight-of-Evidence Method—A Study Area in Central Italy." Applied Sciences 13, no. 15 (2023): 8617. http://dx.doi.org/10.3390/app13158617.

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The Italian territory is subject to a high level of hydrogeological instability that periodically results in the loss of lives, buildings and productive activities. Therefore, the recognition of areas susceptible to hydrogeological instability is the basis for preparing countermeasures. In this context, landslide susceptibility in the mid-Adriatic slope was analyzed using a statistical method, the weight of evidence (WoE), which uses information from several independent sources to provide sufficient evidence to predict possible system developments. Only flows, slides, debris flows and mud flow

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12

Papatheodorou, George, Maria Geraga, Dimitris Christodoulou, et al. "The Battle of Lepanto Search and Survey Mission (1971–1972) by Throckmorton, Edgerton and Yalouris: Following Their Traces Half a Century Later Using Marine Geophysics." Remote Sensing 13, no. 16 (2021): 3292. http://dx.doi.org/10.3390/rs13163292.

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A series of marine remote sensing and ground-truth surveys were carried out at NW Gulf of Patras (W. Greece). The same area was surveyed in 1971 by Throckmorton, Edgerton and Yalouris, who are among the pioneers in the application of remote sensing techniques to underwater archaeology. The researchers conducted a surface reconnaissance survey to locate the site where the Battle of Lepanto took place on 7 October 1571. Their remote sensing surveying resulted in a map of two “target” areas that showed promise as possible remnants of wrecks from that battle and proposed a ground truth survey for

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13

Al-Masgari, Abd Al-Salam, Mohamed Elsaadany, Numair A. Siddiqui, et al. "Geomorphological Geometries and High-Resolution Seismic Sequence Stratigraphy of Malay Basin’s Fluvial Succession." Applied Sciences 11, no. 11 (2021): 5156. http://dx.doi.org/10.3390/app11115156.

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This study identified the Pleistocene depositional succession of the group (A) (marine, estuarine, and fluvial depositional systems) of the Melor and Inas fields in the central Malay Basin from the seafloor to approximately −507 ms (522 m). During the last few years, hydrocarbon exploration in Malay Basin has moved to focus on stratigraphic traps, specifically those that existed with channel sands. These traps motivate carrying out this research to image and locate these kinds of traps. It can be difficult to determine if closely spaced-out channels and channel belts exist within several seism

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14

Yang, Tao, Gulnar Yerkinkyzy, Knut Uleberg, and Ibnu Hafidz Arief. "Predicting Reservoir Fluid Properties from Advanced Mud Gas Data." SPE Reservoir Evaluation & Engineering 24, no. 02 (2021): 358–66. http://dx.doi.org/10.2118/201635-pa.

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Summary In a recent paper, we published a machine learning method to quantitatively predict reservoir fluid gas/oil ratio (GOR) from advanced mud gas (AMG) data. The significant increase of the model accuracy compared to traditional modeling approaches makes it possible to estimate reservoir fluid GOR based on AMG data while drilling, before the wireline operation. This approach has clear advantages because of early access, low cost, and a continuous reservoir fluid GOR for all reservoir zones. This paper releases further study results to predict other reservoir fluid properties in addition to

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15

Richard, Pascal D., Peter J. R. Nederlof, Jos M. J. Terken, and Nashwa Al-Ruwehy. "Generation and Retention of Hydrocarbon in the Haushi Play, North Oman." GeoArabia 3, no. 4 (1998): 493–506. http://dx.doi.org/10.2113/geoarabia0304493.

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ABSTRACT In North Oman, 20 fields, with a combined oil-in-place of 500 million cubic meters (3,145 million barrels), have reserves booked in the Permian-Carboniferous Haushi (Gharif and Al-Khlata formations) reservoirs. In addition, some 150 prospects are recognized with a combined ultimate recoverable reserves expectation of 39 million cubic meters (245 million barrels). Following a successful exploration campaign, the success ratio decreased progressively. An integrated charge and retention study was therefore carried out to revitalize the play. The aim of this study was to establish a frame

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Carpenter, Chris. "Subsurface Data Reveal Pore-Pressure Variations in Shale Basins." Journal of Petroleum Technology 77, no. 02 (2025): 82–85. https://doi.org/10.2118/0225-0082-jpt.

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_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper URTeC 4042140, “Regional Pore-Pressure Variations of the Wolfcamp, Dean, Spraberry, and Bone Spring Formations of the Midland and Delaware Basins in the USA,” by Shuvajit Bhattacharya, Ray Eastwood, and Katie Smye, The University of Texas at Austin, et al. The paper has not been peer reviewed. _ The authors study regional pore-pressure variations in the Leonardian and Wolfcampian producing strata (Wolfcamp, Bone Spring, Avalon, Dean, and Spraberry) in the Midland and Delaware Basins of West Texas and

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Green, Sam, Stephen O'Connor, Richard Swarbrick, and Kester Waters. "A hydrodynamic model and associated spill-point map for the Huntington Field, UK Central North Sea." Geological Society, London, Petroleum Geology Conference series 8, no. 1 (2016): 399–412. http://dx.doi.org/10.1144/pgc8.7.

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AbstractThe Huntington Field is located in Block UK 22/14b in the UK Central North Sea. The reservoir is the Tertiary Forties Formation (a deep-sea fan interval), which has been produced since 2013. Pre-production well data indicate that hydrocarbons (oil) are present outside structural closure as recorded by direct pressure data and wireline-derived fluid contacts, and indicated by seismic attribute data. These observations in other parts of the world (e.g. Mad Dog Field, Miocene Gulf of Mexico) have been attributed to the presence of a hydrodynamic reservoir. This paper aims to reconcile the

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Shah, Mirza M. "Prediction of Critical Heat Flux of Mixtures Flowing in Channels." Fluids 8, no. 3 (2023): 90. http://dx.doi.org/10.3390/fluids8030090.

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Boiling of mixtures in channels is involved in many chemical processes, and refrigerant mixtures are finding a rapidly increasing use in the refrigeration industries. Hence, reliable prediction of CHF (critical heat flux) is needed. There is no published method that has been verified over a wide range of parameters. In this study, available data for CHF in tubes and annuli were compared to general correlations for tubes and annuli, which are well-verified for single-component fluids. This paper presents the results of this comparison. It was found that general correlations for single-component

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Panarace, M., C. Garnil, G. Jauregui, J. Lagioia, M. Marfil, and M. Medina. "382 ULTRASONOGRAPHIC EVALUATION OF AMNIOTIC SAC SIZE DURING EARLY PREGNANCY IN COWS." Reproduction, Fertility and Development 18, no. 2 (2006): 298. http://dx.doi.org/10.1071/rdv18n2ab382.

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In ruminants, the embryonic vesicle is composed of the yolk and the allantoic and amniotic sacs. In cattle, the allantoic sac represents the largest fluid accumulation in the uterus from early pregnancy onward, but is irregular in shape as it conforms to the uterine horns. It is, therefore, difficult to ultrasonographically measure the allantoic compartment. Conversely, the amniotic sac remains ellipsoidal in shape and can be evaluated more easily. The aim of this study was to characterize the development of the amniotic sac in relation to embryo development. Thirteen multiparous, nonlactating

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Agustine, Eleonora, Krishna Agra Pranatikta, Muhammad Abdillah Budianto, et al. "Identification of Mud Volcano’s Structure using Gravity Satellite and Fault Fracture Density Analysis: Case Study Ciuyah Mud Volcano, Kuningan, West Java." Sains Malaysiana 52, no. 11 (2023): 3013–26. http://dx.doi.org/10.17576/jsm-2023-5211-01.

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Mud volcanoes, known as mud extrusion phenomenon, is a geological feature that expels suspended fine-grained sedimentary materials and fluids to the surface due to buoyancy and pressure difference. This geological feature is found almost all over the world and formed in compressional tectonic environments, one of which is the Ciuyah Mud Volcano, Kuningan, Indonesia. Previous studies have shown that the appearance of the mud volcano was influenced by tectonic activity that formed a ‘hypothetical’ fault structure as a pathway for mud migration and extrusion to the surface. Integration of geophys

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Ahmad, Mushtaq, Muhammad Imran, Dumitru Baleanu, and Ali Alshomrani. "Thermal analysis of magnetohydrodynamic viscous fluid with innovative fractional derivative." Thermal Science 24, Suppl. 1 (2020): 351–59. http://dx.doi.org/10.2298/tsci20351a.

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In this study, an attempt is made to investigate a fractional model of unsteady and an incompressible MHD viscous fluid with heat transfer. The fluid is lying over a vertical and moving plate in its own plane. The problem is modeled by using the constant proportional Caputo fractional derivatives with suitable boundary conditions. The non-dimensional governing equations of problem have been solved analytically with the help of Laplace transform techniques and explicit expressions for respective field variable are obtained. The transformed solutions for energy and momentum balances are appeared

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Ahmad, Mushtaq, Muhammad Imran, Dumitru Baleanu, and Ali Alshomrani. "Thermal analysis of magnetohydrodynamic viscous fluid with innovative fractional derivative." Thermal Science 24, Suppl. 1 (2020): 351–59. http://dx.doi.org/10.2298/tsci20s1351a.

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In this study, an attempt is made to investigate a fractional model of unsteady and an incompressible MHD viscous fluid with heat transfer. The fluid is lying over a vertical and moving plate in its own plane. The problem is modeled by using the constant proportional Caputo fractional derivatives with suitable boundary conditions. The non-dimensional governing equations of problem have been solved analytically with the help of Laplace transform techniques and explicit expressions for respective field variable are obtained. The transformed solutions for energy and momentum balances are appeared

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Var, Ahmet Ali, Mesut Yalcin, Selim Sen, and Cihat Tascioglu. "Antifungal activity of geothermal fluids from different regions of Turkey." BioResources 7, no. 3 (2012): 4226–36. http://dx.doi.org/10.15376/biores.7.3.4226-4236.

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Antifungal effects of geothermal fluids obtained from the Ankara, Afyon, Denizli, and Eskişehir regions of Turkey on white-rot (Trametes versicolor, MAD-697) and brown-rot (Coniophora puteana, FPRL 11E) fungus (Basidiomycetes) were studied. Fungal experiments were performed on kraft paper and Scots pine wood (Pinus sylvestris L.). We used non-concentrated geothermal water and concentrated geothermal water (via evaporation) in ratios of 25%, 50%, and 75%. To evaluate the results, we measured the concentration of specific minerals in the geothermal fluids such as boron (B), arsenic (As), copper

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Osorio Riffo, Álvaro, Guillaume Mauri, Adriano Mazzini, and Stephen A. Miller. "Tectonic insight and 3-D modelling of the Lusi (Java, Indonesia) mud edifice through gravity analyses." Geophysical Journal International 225, no. 2 (2021): 984–97. http://dx.doi.org/10.1093/gji/ggab020.

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SUMMARY Lusi is a sediment-hosted hydrothermal system located near Sidoarjo in Central Java, Indonesia, and has erupted continuously since May 2006. This mud eruption extends over a surface of ∼7 km2, and is framed by high containment dams. The present study investigates the geometry of the subsurface structures using a detailed gravimetric model to visualize in 3-D the Lusi system and surrounding lithologies. The obtained residual Bouguer anomaly map, simulated through geostatistical interpolation methods, supports the results of previous deformation studies. The negative gravity anomaly zone

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Jia, Jun, Chaoyang Xu, Chao Hao, and Hongwei Dong. "Synthesis and performance of a small molecular quaternary ammonium salt inhibitors." E3S Web of Conferences 358 (2022): 01042. http://dx.doi.org/10.1051/e3sconf/202235801042.

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In this work, the quaternary ammonium salt small molecule inhibitors with melamine and sodium chloroacetate as raw materials was synthesized and it has certain inhibition on the hydration swelling of bentonite. Through linear swelling test, mud ball test and drilling fluid performance evaluation, its inhibition performance in clay is evaluated. The results show that the linear swelling rate of bentonite in 0.5% MAA-3 solution is 57.28% at 90 min, which is similar to that in 4.0% KCl solution.

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Song, Jie, Yu Lei, Long Chen, et al. "The First 24 h Hemodynamic Management in NICU after Revascularization Surgery in Moyamoya Disease." Behavioural Neurology 2021 (October 12, 2021): 1–7. http://dx.doi.org/10.1155/2021/5061173.

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Objective. To evaluate whether hemodynamic factors are risk factors for prognosis in moyamoya disease (MMD). Materials and Methods. The retrospective study reviewed a single-center MMD cohort in Huashan Hospital from August 2017 to January 2020. Stroke events in 30 days and follow-up modified Rankin Scale (mRS) grade were recorded. Systematic assessments with perioperative mean arterial pressure (MAP), red blood cell (RBC) parameters, and fluid management were also conducted. Logistic regressions were applied to evaluate the predictors of worse outcomes. Data was analyzed using SPSS 24.0. Resu

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Tuncel, Zeliha, and Özgül Düzgün. "The management of goal-directed fluid therapy during cytoreductive surgery and hyperthermic intraperitoneal chemotherapy." Medicine 103, no. 20 (2024): e38187. http://dx.doi.org/10.1097/md.0000000000038187.

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Cytoreductive surgery is a surgical treatment approach that has been applied over the last 3 decades in patients with peritoneal metastases originating from intraabdominal organs. Goal-directed fluid therapy (GDFT) is an approach in which a patient fluid therapy during a medical procedure or surgery is carefully managed based on a specific goal. In this study, we aimed to present the results of GDFT in patients who underwent cytoreductive surgery for peritoneal carcinomatosis (PC) during the perioperative period. This retrospective study included 398 patients patient who underwent cytoreductiv

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McGuire, P. L., A. P. Spence, and R. S. Redman. "Performance Evaluation of a Mature Miscible Gasflood at Prudhoe Bay." SPE Reservoir Evaluation & Engineering 4, no. 04 (2001): 318–26. http://dx.doi.org/10.2118/72466-pa.

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Summary This paper summarizes the acquisition, conventional and compositional core analysis, and reservoir-simulation history match of a core taken roughly 300 ft from a production well in the most mature area of the Prudhoe Bay Miscible Gas Project (PBMGP). Compositional analysis of the core yielded a great deal of in-situ enhanced oil recovery (EOR) performance data and provided insights that could not be obtained from routine core analysis or production data. Fine-gridded reservoir simulations yielded a good match of the offset well-production rates and the observed compositional behavior o

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Hsieh, Chia-Yeh, Hsiang-Yun Huang, Chia-Tai Chan, and Li-Tzu Chiu. "An Analysis of Fluid Intake Assessment Approaches for Fluid Intake Monitoring System." Biosensors 14, no. 1 (2023): 14. http://dx.doi.org/10.3390/bios14010014.

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Monitoring fluid intake is essential to help people manage their individual fluid intake behaviors and achieve adequate hydration. Previous studies of fluid intake assessment approaches based on inertial sensors can be categorized into wrist-worn-based and smart-container-based approaches. This study aims to analyze wrist-worn-based and smart-container-based fluid intake assessment approaches using inertial sensors. The comparison of these two approaches should be analyzed according to gesture recognition and volume estimation. In addition, the influence of the fill level and sip size informat

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Sang, Pengcheng, Qinlian Wei, Zhandong Yan, et al. "Diagenetic Facies Characteristics of Low-contrast Reservoirs in Chang 82 Formation in Huanxian Area and Their Influence on Oil-water Distribution." Academic Journal of Science and Technology 14, no. 1 (2025): 130–35. https://doi.org/10.54097/a8tw2c49.

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The Chang 82 reservoir in Huanxian County is a low-contrast reservoir, and its oil-water relationship is complex, and log-identification fluids are difficult to identify. Through observation and statistics under the microscope of casting thin section, the diagenetic facies triangle map consisting of compaction rate, cementation rate, and dissolution rate was used to quantitatively divide and identify the diagenetic facies. The diagenetic facies of the Chang 82 reservoir can be divided into dissolution-green mud. Stone cementation, dissolution-carbonate cementation, carbonate cementation, carbo

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Jarrín, Oscar. "Regularity of weak solutions for the stationary Ericksen–Leslie and MHD systems." Journal of Mathematical Physics 64, no. 3 (2023): 031510. http://dx.doi.org/10.1063/5.0133975.

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We consider two elliptic coupled systems of relevance in the fluid dynamics. These systems are posed on the whole space [Formula: see text], and they consider the action of external forces. The first system deals with the simplified Ericksen–Leslie (SEL) system, which describes the dynamics of liquid crystal flows. The second system is the time-independent magneto-hydrodynamic (MHD) equations. For the SEL system, we obtain a new criterion to improve the regularity of weak solutions, provided that they belong to some homogeneous Morrey space. As a bi-product, we also obtain some new regularity

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Baniya, Abinash, Prabin Duwadee, Sujata K.C., et al. "Mad honey poisoning presenting with syncopal attack: a case report." Annals of Medicine & Surgery 85, no. 7 (2023): 3649–52. http://dx.doi.org/10.1097/ms9.0000000000000899.

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Introduction and importance: Mad honey contains grayanotoxin, which is commonly derived from the nectar of a few Rhododendron species. It is commonly used by natives of the Himalayas in the belief of its medicinal use. Case presentation: The authors report a case of 62 years old male with mad honey poisoning who was presented to the emergency department with loss of consciousness and had bradycardia and hypotension on arrival. The patient received intravenous fluids, atropine, and vasopressor support and was closely monitored in the coronary care unit for 48 h. Discussion: Grayanotoxin I and I

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Dhruv, Vedant, Ben Prather, George N. Wong, and Charles F. Gammie. "A Survey of General Relativistic Magnetohydrodynamic Models for Black Hole Accretion Systems." Astrophysical Journal Supplement Series 277, no. 1 (2025): 16. https://doi.org/10.3847/1538-4365/adaea6.

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Abstract General relativistic magnetohydrodynamics (GRMHD) simulations are an indispensable tool in studying accretion onto compact objects. The Event Horizon Telescope (EHT) frequently uses libraries of ideal GRMHD simulations to interpret polarimetric, event-horizon-scale observations of supermassive black holes at the centers of galaxies. In this work, we present a library of 10 nonradiative, ideal GRMHD simulations that were utilized by the EHT Collaboration in their analysis of Sagittarius A*. The parameter survey explores both low (SANE) and high (MAD) magnetization states across five bl

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ESLER, J. G., and J. D. PEARCE. "Dispersive dam-break and lock-exchange flows in a two-layer fluid." Journal of Fluid Mechanics 667 (January 14, 2011): 555–85. http://dx.doi.org/10.1017/s0022112010004593.

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Dam-break and lock-exchange flows are considered in a Boussinesq two-layer fluid system in a uniform two-dimensional channel. The focus is on inviscid ‘weak’ dam breaks or lock exchanges, for which waves generated from the initial conditions do not break, but instead disperse in a so-called undular bore. The evolution of such flows can be described by the Miyata–Camassa–Choi (MCC) equations. Insight into solutions of the MCC equations is provided by the canonical form of their long wave limit, the two-layer shallow water equations, which can be related to their single-layer counterpart via a s

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Teh, W. L., and B. U. Ö. Sonnerup. "First results from ideal 2-D MHD reconstruction: magnetopause reconnection event seen by Cluster." Annales Geophysicae 26, no. 9 (2008): 2673–84. http://dx.doi.org/10.5194/angeo-26-2673-2008.

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Abstract. We have applied a new reconstruction method (Sonnerup and Teh, 2008), based on the ideal single-fluid MHD equations in a steady-state, two-dimensional geometry, to a reconnection event observed by the Cluster-3 (C3) spacecraft on 5 July 2001, 06:23 UT, at the dawn-side Northern-Hemisphere magnetopause. The event has been previously studied by use of Grad-Shafranov (GS) reconstruction, performed in the deHoffmann-Teller frame, and using the assumption that the flow effects were either negligible or the flow was aligned with the magnetic field. Our new method allows the reconstruction

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Dzhalilov, A. A., and M. K. Khomidov. "Hitting functions for mixed partitions." Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki 33, no. 2 (2023): 197–211. http://dx.doi.org/10.35634/vm230201.

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Let $T_{\rho}$ be an irrational rotation on a unit circle $S^{1}\simeq [0,1)$. Consider the sequence $\{\mathcal{P}_{n}\}$ of increasing partitions on $S^{1}$. Define the hitting times $N_{n}(\mathcal{P}_n;x,y):= \inf\{j\geq 1\mid T^{j}_{\rho}(y)\in P_{n}(x)\}$, where $P_{n}(x)$ is an element of $\mathcal{P}_{n}$ containing $x$. D. Kim and B. Seo in [9] proved that the rescaled hitting times $K_n(\mathcal{Q}_n;x,y):= \frac{\log N_n(\mathcal{Q}_n;x,y)}{n}$ a.e. (with respect to the Lebesgue measure) converge to $\log2$, where the sequence of partitions $\{\mathcal{Q}_n\}$ is associated with cha

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Korkoi Bonku, Lucy, Confidence Gbolo Sanka, and Philomena Yeboah. "Understanding The Mad Heart: A Deconstructionist Approach To Efua T. Sutherland’s Edufa." Advances in Language and Literary Studies 9, no. 2 (2018): 160. http://dx.doi.org/10.7575/aiac.alls.v.9n.2p.160.

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Myths constitute an important part of human development. Life enduring values are embedded in these myths and the adaptation of some of these archetypal myths from culture to culture ensures shared virtues and opinions on human experience. This paper investigates, using the theories of myth and deconstruction, the relationship between Euripedes’ Alcestis myth and the Edufa myth written by Afua Sutherland. A comparative analysis of the two myths indicates that Sutherland adapted the Greek myth to the Ghanaian context. However, due to the fluid and unstable nature of language and meaning in gene

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Khagi, Bijen, Kun Ho Lee, Kyu Yeong Choi, Jang Jae Lee, Goo-Rak Kwon, and Hee-Deok Yang. "VBM-Based Alzheimer’s Disease Detection from the Region of Interest of T1 MRI with Supportive Gaussian Smoothing and a Bayesian Regularized Neural Network." Applied Sciences 11, no. 13 (2021): 6175. http://dx.doi.org/10.3390/app11136175.

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This paper presents an efficient computer-aided diagnosis (CAD) approach for the automatic detection of Alzheimer’s disease in patients’ T1 MRI scans using the voxel-based morphometry (VBM) analysis of the region of interest (ROI) in the brain. The idea is to generate a normal distribution of feature vectors from ROIs then later use for classification via Bayesian regularized neural network (BR-NN). The first dataset consists of the magnetic resonance imaging (MRI) of 74 Alzheimer’s disease (AD), 42 mild cognitive impairment (MCI), and 74 control normal (CN) from the ADNI1 dataset. The other d

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Lalji, Shaine Mohammadali, Syed Imran Ali, Zahoor Ul Hussain Awan, and Yunus Jawed. "A novel technique for the modeling of shale swelling behavior in water-based drilling fluids." Journal of Petroleum Exploration and Production Technology 11, no. 9 (2021): 3421–35. http://dx.doi.org/10.1007/s13202-021-01236-9.

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AbstractOne of the most significant problems in oil and gas sector is the swelling of shale when it comes in contact with water. The migration of hydrogen ions (H+) from the water-based drilling fluid into the platelets of shale formation causes it to swell, which eventually increases the size of the shale sample and makes it structure weak. This contact results in the wellbore instability problem that ultimately reduces the integrity of a wellbore. In this study, the swelling of a shale formation was modeled using the potential of first order kinetic equation. Later, to minimize its shortcomi

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Arim, Ahmed Ismaël, Mahamat Hassane Babikir, Venant Sorel Chara-Dackou, and Donation Njomo. "Modeling and Simulation of Hourly Irradiance for Solar Applications in Chad: Case of the City of Abeche." International Journal of Heat and Technology 40, no. 4 (2022): 976–86. http://dx.doi.org/10.18280/ijht.400415.

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In this paper, the general objective is to model and simulate the hourly irradiance followed by an assessment of the solar potential in the city of Abeche located in the climatic region of the Republic of Chad. Unlike previous work carried out in the study area on solar irradiance, two hourly solar irradiance estimation models (Capderou and Liu&Jordan) were simulated at varying tilt angles. An analysis of the quality of their estimation is carried out through statistical methods (MBD, RMSD, MAD) of error calculation. The results show that the first model is well adapted on a horizontal sur

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Ciavarella, Domenico, Donatella Ferrara, Angela Pia Cazzolla, Giuseppe Burlon, and Michele Tepedino. "Treatment Emergent Central Sleep Apnea Evaluation in Patients Treated with Mandibular Advancement Device." Applied Sciences 12, no. 23 (2022): 12040. http://dx.doi.org/10.3390/app122312040.

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The aim of the present cohort study was to evaluate the possible occurrence of central sleep apnea (CSA) in patients with obstructive sleep apnea (OSA) after treatment with a mandibular advancement device (MAD). In this case, 56 patients with OSA treated with MAD were enrolled. Inclusion criteria were age over 20 years, body mass index (BMI) less than 34 kg/m2, diagnosis of OSA confirmed by polysomnography (PSG), and MAD therapy for OSA. Exclusion criteria were smoking, medications for neurological disorders or a history of cervical head injury, and comorbidities (arrhythmias, congenital heart

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Yaro, Abdulmalik Shehu, Filip Maly, and Pavel Prazak. "Outlier Detection in Time-Series Receive Signal Strength Observation Using Z-Score Method with Sn Scale Estimator for Indoor Localization." Applied Sciences 13, no. 6 (2023): 3900. http://dx.doi.org/10.3390/app13063900.

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Collecting time-series receive signal strength (RSS) observations and averaging them is a common method for dealing with RSS fluctuation. However, outliers in the time-series observations affect the averaging process, making this method less efficient. The Z-score method based on the median absolute deviation (MAD) scale estimator has been used to detect outliers, but it is only efficient with symmetrically distributed observations. Experimental analysis has shown that time-series RSS observations can have a symmetric or asymmetric distribution depending on the nature of the environment in whi

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Ivanova, Tatiana N., and Michał Zasadzień. "Technological Capabilities of Well Cementing." Multidisciplinary Aspects of Production Engineering 4, no. 1 (2021): 465–78. http://dx.doi.org/10.2478/mape-2021-0042.

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Abstract Cementing of casing string is a final operation before the next stage of well construction; it provides maximum operational life of the well. Cementing of casing string is carried out with the use of technology, based on squeezing of the whole volume of drilling mud by special grouting composition. The main purposes of cementing include isolation of water-bearing horizon, strengthening of borehole walls in unconsolidated and unstable rocks. Well cementing process is divided into five subsequent operations. Firstly, grouting mixture is prepared in concrete mixers (cementing units) with

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Zhang, Yanting, Fei Cheng, and Lixia Li. "Exploring markers in nursing care of prostate cancer." Medicine 104, no. 4 (2025): e41357. https://doi.org/10.1097/md.0000000000041357.

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Prostate cancer is epithelial malignant prostate hyperplasia caused by a tumor. We found prostate cancer GSE141551 and GSE200879 profiles from gene expression omnibus database, followed by differentially expressed genes (DEGs) analysis, weighted gene co-expression network analysis, protein–protein interaction analysis, gene function enrichment analysis, and comparative toxicology database analysis. Finally, the gene expression heat map was drawn, and miRNA information regulating core DEGs was retrieved. A total of 1151 DEGs were found, most of them focusing on systematic development, cell deve

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Wu, K., and J. H. Ginsberg. "Mid-Frequency Range Acoustic Radiation From Slender Elastic Bodies Using the Surface Variational Principle." Journal of Vibration and Acoustics 120, no. 2 (1998): 392–400. http://dx.doi.org/10.1115/1.2893843.

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The surface variational principle (SVP) yields analytical-type results for radiation and scattering from submerged bodies whose shape does not suit classical techniques for analyzing the Helmholtz equation. The approach employs Ritz series expansions for surface pressure and velocity in the frequency domain. The relation between the series coefficients is obtained by extremizing the SVP functional. The present work extends the earlier developments to the case of an axisymmetric elastic shell that is subjected to an arbitrary excitation. The surface pressure and normal velocity are represented

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Li, Mu, Hengrui Zhang, Qing Zhao, et al. "A New Method for Intelligent Prediction of Drilling Overflow and Leakage Based on Multi-Parameter Fusion." Energies 15, no. 16 (2022): 5988. http://dx.doi.org/10.3390/en15165988.

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The technical focus of drilling operations is changing to oil and gas reservoirs with higher difficulty factors such as low permeability and fracture. During the drilling process, drilling operations in deep complex formations are prone to overflow and leakage complications. Leakage and overflow problems will change the performance of the drilling fluid in the wellbore, impacting the wellbore pressure, and causing complex accidents such as stuck drilling and collapse. In order to improve the level of control over the risk of wellbore overflow and leakage, it is necessary to predict the mud ove

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MoatasemBellah, Mohamed, Elhadidy Samir, and Shehata RandaSoliman Mohamed. "Non-invasive Assessment of Hemodynamic Response of Volume Expansion in Spontaneously Breathing Septic Shock Patients." Biolife 6, no. 2 (2022): 64–71. https://doi.org/10.5281/zenodo.7398974.

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<strong>ABSTRACT</strong> <strong>Introduction:</strong> The cornerstone of treating patients with septic shock remains as it has been for decades, intravenous fluids. Dosing intravenous fluid during resuscitation of septic shock remains largely empirical. There is now a large body of evidence to show that various dynamic parameters (both invasive and non-invasive) have a high sensitivity and specificity for predicting fluid responsiveness. Large variations in IVC size with IPPV accurately predict fluid responsiveness but its use is still of debate in spontaneously breathing patients. Objectiv

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Nik Mohd Naser, Nik Nabilah, Ilyani Abdullah, Amira Husni Talib, and Rakhmatillo Aloev. "Blood Flow Characteristic of the Magnetohydrodynamic Flow with Cosine-Shaped Stenosis in a Cylindrical System under the Influence of Hall Effect." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 126, no. 2 (2025): 26–37. https://doi.org/10.37934/arfmts.126.2.2637.

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The main aim of this paper is to investigate a Newtonian model of two-dimensional blood flow coupled with mass transfer in the presence of magnetic field and Hall current effect. The flowing blood is assumed to be Newtonian fluid, and the arterial wall is having cosine-shaped stenosis in its blood vessel with stenosis. The fluid dynamics are governed by the Navier-Stokes equation with the magnetohydrodynamic (MHD) principle and Hall current effect which describe the additional magnetic effects in cylindrical coordinate system. The governing equations of motion accompanied by the appropriate in

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Antonetti, Guido, Matteo Gentilucci, Domenico Aringoli, and Gilberto Pambianchi. "Analysis of landslide Susceptibility and Tree Felling Due to an Extreme Event at Mid-Latitudes: Case Study of Storm Vaia, Italy." Land 11, no. 10 (2022): 1808. http://dx.doi.org/10.3390/land11101808.

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Storm Vaia on 29 October 2018, hit northeastern Italy and produced extensive damage in the immediacy of the event, including extensive tree felling in some places, as well as debris flow or earth flow landslides. This study aims to assess the susceptibility of the area following extreme events by evaluating the environmental criticality during strong winds and intense precipitation. Specifically, tree felling susceptibility due to wind and landslide susceptibility due mainly to precipitation were analysed by taking into consideration the geomorphological and environmental criticality of the ar

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O’Neill, Kate. "A Vital Fluid: Risk, Controversy and the Politics of Blood Donation in the Era of “Mad Cow Disease”." Public Understanding of Science 12, no. 4 (2003): 359–80. http://dx.doi.org/10.1177/0963662503124003.

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