Estimation of Specific Energy and Evaluation of Roadheader …
Specific energy (SE) is defined as the amount of work required to cut a unit volume of rock and is used to estimate the performance of excavation machines. Generally, the SE value is produced from full-scale or small-scale rock cutting tests. However, these tests require expensive equipment and experienced personnel, and the testing procedure is time …
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Bond´s work index estimation using non-standard ball mills
the Bond Work Index (kWh/t) can be rapidly estimated (less than 2 hours) and show a high accuracy for mills of non-standard dimensions (R2= 0.96). Keywords: Bond´s Work Index, …
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Preprint 04-91 EVALUATION OF A NEW METHOD FOR WORK …
A method developed by the Utah Comminution Center (UCC) at the University of Utah provides a possible answer to the need for quick and reliable grinding cost estima-tion …
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Evaluation framework for smartphone-based road roughness index
In this work, a deep learning IRI estimation method is proposed with the goal of using anonymous (i.e., calibration‐free) vehicles and their responses measured by smartphones as road roughness ...
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An empirical comparative study on biological age estimation …
Experiments were conducted on 200 Korean male participants using a BA estimation system developed principally under the concept of non-invasive, simple to operate and human function-based. Using the empirical data, BA estimation as well as various analyses including correlation analysis and discriminant function analysis was performed.
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A CMMOG-based lithium-battery SOH estimation method using …
In the daily use of EVs, SOH estimation can help the BMS in developing appropriate charging and discharging strategies to avoid over charging or over discharging [13, 14], thus slowing down the aging process of batteries and prolonging their service life.When a battery ages to a certain degree, the output power of its LIBs also decreases, which can …
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Mango maturity classification instead of maturity index estimation: …
Mango (Mangifera indica L.) is one of the highly consumed fruits world-wide and is known as the 'King of fruits'.Its taste and quality cannot be assured by proper cultivation practices only, but also by deciding its optimal harvest time [1].Estimation of mango fruit maturity on-tree is essential for the prediction of harvest time.
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(PDF) Measurement and estimation of leaf area index (LAI) using
The leaf area index (LAI) is a key plant parameter for modeling the mass exchange and energy between the biosphere and the atmosphere, which allows the study of development, growth, and agronomic ...
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Status of crop water use efficiency evaluation methods: A review
The objectives of our review were to (1) clarify the concept of WUE at different levels and scales to provide guidance for selecting WUE indicators in the evaluation area, (2) compare the advantages, disadvantages, and application scope of various WUE estimation methods, including the field measurement, crop model simulation, remote sensing ...
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Procedure for determination of ball Bond work index in the …
This work contributes to obtaining new models for rapid Bond Work Index estimation using non-standard dimensions mills. ... Evaluation of Minerals by Scanning Electron Microscopy (QEMSCAN) to ...
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Methods for Estimating the Bond Work Index for Ball Mills
An analysis of selected methods is also provided to assess and obtain an accurate value of the BWI, which is essential in the grinding process. The methods for estimating the BWI using the wet method are presented. It is shown how the BWI can be estimated using dynamic elastic parameters and how changes in the Bond ball mill affect the BWI value.
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Evaluation of segmental myocardial work in the left ventricle
Recently a new index to evaluate myocardial work was introduced. ... Russel et.al.1 described a simple method that can estimate LV pressure non-invasively based on measurement of ... non-ST-segment elevation using regional cardiac work index. J. Vecera et.al. 4 showed a marked
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CPM modulation index estimation using LS and BLUE …
In the case where the modulation index can vary, we propose a maximum-likelihood (ML) estimation of the modulation index and compare the performance of the resulting structure with a non-coherent ...
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Bond´s work index estimation using non-standard ball mills
Bond Work Index estimation using non-standard dimensions mills. This was done by proposing grinding tests using four types of ores and four mills of different dimensions, including the standard
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Evaluation of a new method for work index estimation using single
Using results from single particle impact tests, a work index called the Utah load cell work index (ULCWI) is calculated. The potential for routine use of the new method is explored by comparing ULCWI values with corresponding Bond work index (BWI) values for eight …
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Estimation methodology for Bond ball mill work index experiment …
This paper proposes a new method to estimate the Bond Ball mill work index result to decrease experimental time. Four types of ore (limestone, fluorite, chalcopyrite, and …
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(PDF) A new approach to the calculation of bond work index for …
Abstract The Bond work index (BWI) is a well-known method used when selecting comminution equipment, to evaluate the grinding efficiency and to calculate the required grinding power. …
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Evaluation of a new method for work index estimation using …
single particle impact tests, a work index called the Utah load cell work index (ULCWl) is calculated. The potential for routine use of the new method is explored by comparing ULCWI …
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Efficient Estimation of Variance and Covariance …
Therefore, the new method will be very promising to efficiently estimate the variance and covariance components of the measurements from the different sensors and reasonably balance
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Evaluation of soil loss estimation using the RUSLE model and …
The revised universal soil loss equation model can identify soil loss possibility on a pixel cell-by-cell method (Shinde, Tiwari, & Singh, 2010), which is effective as trying to recognize the spatial class of the soil erosion current time in a big area.Revised universal soil loss equation is the revised form of universal soil loss equation, which has been used at different geo-spatial …
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Health Index Estimation Through Integration of General …
Accurately estimating a Health Index (HI) from condition monitoring data (CM) is essential for reliable and interpretable prognostics and health management (PHM) in complex systems. In most scenarios, complex systems operate under varying operating conditions and can exhibit different fault modes, making unsupervised inference of an HI from CM ...
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Enhancing Nitrogen Nutrition Index estimation in rice using multi …
For experiments with only two nitrogen levels or where the N critical could not be determined using this method, a ... Yang, J., Lv, Y., He, J. (2014). SPAD values and nitrogen nutrition index for the evaluation of rice nitrogen status. ... Chen G, Xie J, Guan X, Shi W and Xiang H (2024) Enhancing Nitrogen Nutrition Index estimation in rice ...
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A new accuracy evaluation method for water body extraction
A new accuracy evaluation method for water body extraction. ... It provides a new approach in verifying the accuracy of water body extraction methods. The optimum water extraction index for different study areas is different. The NIR band threshold method and AWEI can accurately extract water boundaries with a small amount of aquatic vegetation ...
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Pavement roughness index estimation and anomaly detection using
Pavement conditions are usually represented by using roughness indices, such as the International Roughness Index (IRI) and Pavement Condition Index (PCI), which are calculated based on a driving vehicle's response to the road profile and visual inspection of pavement distresses, respectively [4].Being one of the most popular roughness indices …
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Evaluation of empirical estimation of uniaxial compressive strength …
For this, researchers developed different methods for indirect estimation of UCS using empirical relationship between UCS and other index and physical properties of rock which are less difficult to be measured (Sachpazis, 1990, Tuğrul and Gürpinar, 1997, Chatterjee and Mukhopadhyay, 2002, Gokceoglu and Zorlu, 2004, Diamantis et al., 2009 ...
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Brittleness index estimation in a tight shaly sandstone reservoir using
In this paper, a new method for calculating brittleness index using conventional logging data was established to find the high-quality exploration and development target area of tight sandstone ...
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A new approach to the calculation of bond work index for finer …
The Bond Work Index (Wi) is a common technique for the estimation of hardness and energy requirement for comminution using ball mills. However, this technique is time …
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A new methodology to obtain a corrected Bond ball mill work …
The Bond work index (BWI) is a well-known method used when selecting comminution equipment, to evaluate the grinding efficiency and to calculate the required …
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A new methodology to obtain a corrected Bond ball mill work …
This paper describes a methodology for providing an estimation of the Bond ball mill work index for a sample of non-standard size (F 100 ≠ −3.35 mm) when all the parameters …
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Leaf area index estimation of pergola-trained vineyards in arid …
Unsurprisingly, given its importance, new methods of estimating LAI are on the rise, coupled with new purposes for monitoring crops. Generally, the measurement of LAI consists of direct and indirect methods (Breda, 2003).The direct measurements of LAI are the most accurate, but they are too laborious, time-demanding, and destructive (Hicks and Lascano, 1995).
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