作者: MINT 時(shí)間: 2025-3-21 23:09 作者: 征兵 時(shí)間: 2025-3-22 04:01
Modelling Asymmetrical Facies Successions Using Pluri-Gaussian Simulations Triassic vertical facies succession in the Latemar carbonate platform (Dolomites, Northern Italy) composed of shallowing-upward cycles. The model is flexible enough to capture the different transition probabilities between the environments of deposition and to generate realistic facies successions.作者: 枯萎將要 時(shí)間: 2025-3-22 05:45 作者: anaphylaxis 時(shí)間: 2025-3-22 09:12
A New High-Order, Nonstationary, and Transformation Invariant Spatial Simulation Approach on the similarity of the high-order statistics of the data event of the hard data compared to those of the training image. The high-order similarity measure introduced herein is effectively invariant under all linear spatial transformations..Following the sequential simulation paradigm, the templat作者: 飛行員 時(shí)間: 2025-3-22 13:23 作者: 飛行員 時(shí)間: 2025-3-22 17:25
New Approach to Recoverable Resource Modelling: The Multivariate Case at Olympic Damr discusses a different approach to recoverable resource estimation based on conditional simulation methods..The Olympic Dam deposit is one the world’s largest polymetallic deposits. The resource estimation practices at the Olympic Dam are comprised of a combination of linear and non-linear techniqu作者: 清醒 時(shí)間: 2025-3-22 22:07
Comparison of Two Multivariate Grade Simulation Approaches on an Iron Oxide Copper-Gold Depositluding some of the significant geological risks. A short summary of different multivariate simulation techniques is given. The process and results of multivariate simulation of total copper, acid-soluble copper, gold, and iron within the deposit using the two methodologies are presented. The focus i作者: Acclaim 時(shí)間: 2025-3-23 03:57
Complexities in the Geostatistical Estimation of Besshi-Type Mineral Deposits on the Northwest of Pi better results in basic and moving windows statistics. Semivariograms showed defined structures with anisotropy in the 0° and 90° directions (considering 0 to the north). To apply the lognormal kriging estimation is the main objective of this work, because of the complexities of the geology in the 作者: decode 時(shí)間: 2025-3-23 08:10 作者: 令人作嘔 時(shí)間: 2025-3-23 12:15
Fixing Panel Artifacts in Localized Indicator Kriging (LIK) Block Modelseas where drill data is sparse. Unlike the first two artifact types, this type needs to be fixed by adjusting search parameters. Artifacts should be eliminated from LIK models whether they are obvious as in the case of those caused by large change-of-support transformations or are simply the added s作者: 毗鄰 時(shí)間: 2025-3-23 17:05 作者: Ascendancy 時(shí)間: 2025-3-23 22:05 作者: Incorruptible 時(shí)間: 2025-3-24 00:24 作者: 顯赫的人 時(shí)間: 2025-3-24 02:45
An Overview of Entrepreneurship in Malaysia,rnational geostatistics congress, 1–5 Dec. 2008, Santiago, Chile. Ortiz J-M, Emery X (eds) for an example, 2008). But what about the other cases? When the error is additive, its correlation with the exact value can remain undetectable. The variance of the measurement errors is thus not always comput作者: handle 時(shí)間: 2025-3-24 07:40
https://doi.org/10.1007/978-3-642-31098-0 Triassic vertical facies succession in the Latemar carbonate platform (Dolomites, Northern Italy) composed of shallowing-upward cycles. The model is flexible enough to capture the different transition probabilities between the environments of deposition and to generate realistic facies successions.作者: 改變立場(chǎng) 時(shí)間: 2025-3-24 10:51 作者: Radiculopathy 時(shí)間: 2025-3-24 17:01
Entrepreneurial Business Modeling on the similarity of the high-order statistics of the data event of the hard data compared to those of the training image. The high-order similarity measure introduced herein is effectively invariant under all linear spatial transformations..Following the sequential simulation paradigm, the templat作者: Paleontology 時(shí)間: 2025-3-24 21:02 作者: orthodox 時(shí)間: 2025-3-25 01:49
Véronique Ambrosini,Taman Powellr discusses a different approach to recoverable resource estimation based on conditional simulation methods..The Olympic Dam deposit is one the world’s largest polymetallic deposits. The resource estimation practices at the Olympic Dam are comprised of a combination of linear and non-linear techniqu作者: 物質(zhì) 時(shí)間: 2025-3-25 05:56 作者: parallelism 時(shí)間: 2025-3-25 09:09 作者: 反復(fù)無(wú)常 時(shí)間: 2025-3-25 13:13
https://doi.org/10.1007/978-81-322-2086-2tatistical resource estimation model. Planned dilution is calculated and implemented for a range of block sizes, and one OMU is selected that is a reasonable match to the actual production. Operational mining unit size (or sizes, if variable) will yield tonnes, grades, and metal of ore at given cuto作者: 斗爭(zhēng) 時(shí)間: 2025-3-25 18:19
https://doi.org/10.1057/9781137024077eas where drill data is sparse. Unlike the first two artifact types, this type needs to be fixed by adjusting search parameters. Artifacts should be eliminated from LIK models whether they are obvious as in the case of those caused by large change-of-support transformations or are simply the added s作者: 慷慨援助 時(shí)間: 2025-3-25 22:15 作者: constitutional 時(shí)間: 2025-3-26 00:13
Entrepreneurial Finance for MSMEshe process is a simple application of rank and replace combining two estimates, one that targets local block accuracy and one that targets actual block variability. The method is empirically demonstrated using a case study using real data. The conclusion, for this data set, is that local selection a作者: prostate-gland 時(shí)間: 2025-3-26 07:16 作者: 碎石 時(shí)間: 2025-3-26 09:40
0924-1973 l, practitioner or scientist working in geostatistics. The book contains carefully reviewed papers on geostatistical theory and applications in fields such as mining engineering, petroleum engineering, environmental science, hydrology, ecology, and other fields..978-3-319-83594-5978-3-319-46819-8Series ISSN 0924-1973 Series E-ISSN 2215-1834 作者: 單片眼鏡 時(shí)間: 2025-3-26 15:54 作者: 有機(jī)體 時(shí)間: 2025-3-26 17:17 作者: Alpha-Cells 時(shí)間: 2025-3-26 23:43
Cristiana Pesciullesi,Marta Rapallini as to remember this great South African mining pioneer:.What follows is both a tribute to his work and a testimony to the great man’s deep personal integrity, belief in family, humility and faith in Christ, all of which led him to become not only a giant in the South African mining industry but indeed worldwide.作者: LAY 時(shí)間: 2025-3-27 02:51
Professor Danie Krige’s First Memorial Lecture: The Basic Tenets of Evaluating the Mineral Resource as to remember this great South African mining pioneer:.What follows is both a tribute to his work and a testimony to the great man’s deep personal integrity, belief in family, humility and faith in Christ, all of which led him to become not only a giant in the South African mining industry but indeed worldwide.作者: BACLE 時(shí)間: 2025-3-27 07:37 作者: 并置 時(shí)間: 2025-3-27 11:53
Optimizing Infill Drilling Decisions Using Multi-armed Bandits: Application in a Long-Term, Multi-elvertising, clinical trials and others. The application of the proposed method to a long-term, multi-element stockpile, which is a part of a gold mining complex in Nevada, USA, demonstrates its practical aspects.作者: 怪物 時(shí)間: 2025-3-27 16:00
Using Samples of Unequal Length for Estimationt be considered during estimation. We propose to perform kriging using samples of different lengths. The kriging system is built using average covariances to account for the difference in support between the samples. The technique is applied in a mining case study and the benefits are demonstrated.作者: 專心 時(shí)間: 2025-3-27 17:47
Book 2017ook contains carefully reviewed papers on geostatistical theory and applications in fields such as mining engineering, petroleum engineering, environmental science, hydrology, ecology, and other fields..作者: agenda 時(shí)間: 2025-3-28 01:55 作者: Misgiving 時(shí)間: 2025-3-28 04:15
Functional Decomposition Kriging for Embedding Stochastic Anisotropy Simulationsing” (FDK), which can forecast fields on . domains without using blocks, cells, or elements. FDK assembles the random field as a summation of ., which are sample pivoted and nonstationary. Furthermore, spatially variable . is represented as a continuous tensor random field, which is formed from .. F作者: CULP 時(shí)間: 2025-3-28 06:30
Can Measurement Errors Be Characterized from Replicates?erest of replicates for selecting the error model received limited attention. If measurement errors are supposed to be additive, homoscedastic, without correlation between them, and spatially not correlated with the exact values, the variances of the measurement errors are computable from the sample作者: Chromatic 時(shí)間: 2025-3-28 11:53 作者: ensemble 時(shí)間: 2025-3-28 18:10
Considerations for the Use of Sequential Sampling Techniques..These two-point statistics consist of second-order moments that are defined by a variogram. The statistics describe the lateral continuity behaviour of the models. It can be shown that the sequential sampling method correctly generates samples from a probability density function (pdf), when this p作者: Assignment 時(shí)間: 2025-3-28 22:02
A New High-Order, Nonstationary, and Transformation Invariant Spatial Simulation Approachand high-order spatial connectivity of the attributes of natural phenomena. Similar to multipoint methods, the proposed approach employs spatial templates and a group of training images (TI). A coarse template with a fixed number of data points and a missing value in the middle is used, where the mi作者: octogenarian 時(shí)間: 2025-3-28 23:38
A Truly Multivariate Normal Score Transform Based on Lagrangian Flowistics. However, in the case of a set of collocated variables, marginal normality of each variable does not imply multivariate normality of the set, and a joint transformation is required. In addition, current methods are not affine equivariant, as should be required for multivariate regionalized da作者: Insulin 時(shí)間: 2025-3-29 03:14
Using Samples of Unequal Length for Estimationupports. All the available information should be incorporated when constructing a grade model. However, the variations in length among the samples must be considered during estimation. We propose to perform kriging using samples of different lengths. The kriging system is built using average covaria作者: Painstaking 時(shí)間: 2025-3-29 08:18 作者: Somber 時(shí)間: 2025-3-29 12:18
Comparison of Two Multivariate Grade Simulation Approaches on an Iron Oxide Copper-Gold Deposity presents a comparison of a traditional multivariate simulation technique based on a model of coregionalization against another simulation in which decorrelation is first achieved by “projection pursuit,” where independent variables are simulated, then correlated back by the inverse of the decorrel作者: 使隔離 時(shí)間: 2025-3-29 17:45 作者: 頭腦冷靜 時(shí)間: 2025-3-29 22:59
Definition of Operational Mining Unit (OMU) Sizehe size or support of the block estimate is characterized by its volume, shape, and orientation by which it is assigned a grade that directly impacts variance and resulting confidence intervals. However, local geology variations associated with operational mining configuration and production rates a作者: scrape 時(shí)間: 2025-3-30 02:34 作者: nutrition 時(shí)間: 2025-3-30 06:07
Fixing Panel Artifacts in Localized Indicator Kriging (LIK) Block Models by a two-step process that consists of averaging models with different panel origins and then performing a global re-localization. The first type of panel artifact, and probably the most important, is caused by change-of-support transformations, which are independent and applied on a panel-by-panel作者: 提名的名單 時(shí)間: 2025-3-30 08:53
Implications of Algorithm and Parameter Choice: Impacts of Geological Uncertainty Simulation Methodsmpts at determining uncertainty in geological models using methods such as MPS (multiple-point statistics), SIS (sequential indicator simulation), and multiple applications of RBF (radial basis functions) with different parameters have shown that it is nontrivial; the uncertainty profiles are depend作者: 大雨 時(shí)間: 2025-3-30 15:12
Approaching Simultaneous Local and Global Accuracy curve prediction or local block selection but not both at once. Locally accurate block estimates provide the best result during actual selection and mining but can give highly distorted global grades and tonnages at cutoffs above zero. Globally accurate block estimates provide good prediction of gr作者: Myocyte 時(shí)間: 2025-3-30 20:01
Cristiana Pesciullesi,Marta Rapallini in collaboration with the Southern African Institute of Mining and Metallurgy (SAIMM) and the Geostatistical Association of Southern Africa, where his wife Mrs Ansie Krige, the SAIMM and Professor R.C.A. Minnitt also spoke. The memorial lecture was presented by his previous PhD graduate student, Dr作者: 影響深遠(yuǎn) 時(shí)間: 2025-3-30 23:18
https://doi.org/10.1007/978-94-6209-064-4ing” (FDK), which can forecast fields on . domains without using blocks, cells, or elements. FDK assembles the random field as a summation of ., which are sample pivoted and nonstationary. Furthermore, spatially variable . is represented as a continuous tensor random field, which is formed from .. F作者: Intentional 時(shí)間: 2025-3-31 01:00 作者: Ceremony 時(shí)間: 2025-3-31 08:00
https://doi.org/10.1007/978-3-642-31098-0tions are modelled using the linear model of co-regionalization, and a spatial shift is applied to them. Analytical relationships between the two underlying gaussian variograms and the indicator covariances are developed for a truncation rule with three facies and cut-off at 0. The application of th作者: single 時(shí)間: 2025-3-31 10:43
