INDEX and MATCH with multiple criteria

To lookup values with INDEX and MATCH, using multiple criteria, you can use an array formula. In the example shown, the formula in H8 is: =INDEX(E5:E11,MATCH(1,(H5=B5:B11)*(H6=C5:C11)*(H7=D5:D11),0)) The …

Some Methods for Calculating Hardgrove Grindability Index …

From a study of large number of determined values of Hardgrove Grindability Index (H.G.I.) of all major types of Indian coals in has been found that H.G.I. of coals is mainly dependent on two …

How is HGI calculated?

The HGI grindability value is calculated from the following formula: HGI = 13+6,93 (50-m) The m value is the weight of oversize expressed in grams. The Hardgrove grindability …

Index of Diversity | AQA A Level Biology Revision Notes 2015

The Index of Diversity. Once the abundance of different species in an area has been recorded the results can be used to calculate the species diversity or biodiversity for that area. Species diversity looks at the number of different species in an area but also the evenness of abundance across the different species. An index of diversity is a measurement that …

Human Development Index (HDI)

Let's look into some of the examples of the Human Development Index: Example #1. Suppose the life given below are the values of county "ABC" expectancy at birth is 75 years, mean years of schooling is 10 years, expected years of schooling is 15, and GNI per capita (PPP US$) is 17,000.. HDI calculation will be done through two major steps, as shown in the image …

Crushing Properties of Coal 2. Binary Coal Blends

Abstract The Hardgrove grindability index HGI of binary coal blends is determined. The blends contain coal of different metamorphic development in different proportions. Mathematical formulas permit prediction of HGI for a coal blend on the basis of the grinding indices for its individual components. For a binary coal blend with separate preparation of the …

Alternative Approaches for Determination of Bond Work …

PLK (Partially Laterised Khondalite) rock is a general terminology used in this paper for those rocks which are in general associated in bauxite mining such as Partially Altered Khondalite (PAK) rocks, Partially Kaolinised Khondalite (PKK) rocks and Lithomerge. This paper deals with the Bond's work index, Hardgrove index and Brittleness tests on six typical rock samples and its …

(PDF) Hardgrove Grindability of Coal. Part 1.

The Hardgrove grindability index HGI is closely related to the power consumed in crushing coal and may be used to optimize crushing in the coal-preparation shops at coke plants, as shown in [1][2 ...

Hardgrove grindability index (HGI) | PPT

Hardgrove grindability index (HGI) - Download as a PDF or view online for free. ... CALCULATIONS The hard groove grind ability index of coal is than calculated using the following formula. HGI = 13 + 6.93 w Where, w = weight of the test sample passing through 75μ sieve and retained on 300 μ sieve after grinding in the HGI machine.

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ISO 5074:2015(en), Hard coal ? Determination of Hardgrove …

The Hardgrove grindability index is used empirically to estimate the capacity and power consumption of a pulverizer, given a specified product fineness. This International Standard …

Excel SORT function

Where: Array (required) - is an array of values or a range of cells to sort. These can be any values including text, numbers, dates, times, etc. Sort_index (optional) - an integer that indicates which column or row to sort by. If omitted, the default index 1 is used. Sort_order (optional) - defines the sort order:. 1 or omitted (default) - ascending order, i.e. from smallest to …

Estimation of hardgrove grindability index (HGI) based …

One of usual methods for determining the grindability of coal is Hardgrove index method. Soft or hard coals were evaluated for the grindability - toward 100.

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How to Use Index Match Instead of Vlookup

Again, it's good practice to make this range an absolute reference so you can copy the formula down. 2. row_num – The "row number" argument. Next, we specify the row number of the value we want to return within the array (range). This is the row number of the array, NOT the row number of the sheet.

Laspeyres Price Index

The formula for the Laspeyres Price Index is as follows: Where: Pi,0 is the price of the individual item at the base period and Pi,t is the price of the individual item at the observation period. Qi,0 is the quantity of the individual item at the base …

The use of Protodiakonov and Hardgrove methods to …

Hardgrove's coefficient tester grindability is shown in Fig. 2. Hardgrove's coefficient tester HGI consists of a fixed grinding bowl made of hardened steel with a horizontal track on which eight steel balls with a diameter of 25.4 mm. The balls are set in a motion upper-pressure ring that rotates at a speed of 19–21 min −1. The top pressure ...

Herfindahl-Hirschman Index

Since the formula is simple, it fails to undertake various market adversaries and complexities present in today's market structure, especially around M&A transactions. Limitations Generally speaking, in addition to the disadvantage of simplicity, HHI also suffers from various limitations, which would emphasize a careful consideration of all the ...

Determination of the Bond work index of binary mixtures by …

The traditional Hardgrove Grindability Index (HGI) was determined by using the following equation: HGI = 13 + 6.93 m P where m P means the mass of product particles finer …

An assessment of grindability index of coal

Predictions of the Hardgrove grindability index, a predictor of the crushing and pulverization propensity of coal, have been made using both regression and neural network techniques.

Hardgrove Grindability Index (HGI) & Primary Reference …

The Hardgrove Grindability Index Primary Reference Material (HGI-RM) is a sample of coal used to calibrate instruments that are designed to determine the ease with which coal can be …

Calculate your body mass index (BMI)

Calculate your body mass index (BMI) Check an adult's or child's BMI to find out if they're a healthy weight. It's important to use the right calculator for adults (aged 18 and over) or children and teenagers (aged between 2 and 17).

CONTRIBUTION TO DETERMINATION OF COAL …

Hardgrove grindability index (HGI) is determining factor of energy consumption during grinding. The HGI value is used for more detailed coal specification and is significant also for the design …

ISO 5074:2015 Hard coal Determination of Hardgrove grindability inde

ISO 5074:2015 specifies the method for determining the grindability index of hard coal using the Hardgrove machine. It also specifies the procedure for calibrating the test machine and for preparing the standard reference coal samples. NOTE In this International Standard, the term "hard coal" is used as an indication of maturity or rank in the ...

How to use INDEX and MATCH

The INDEX formula below uses the full range of data in B3:D11, with a row number of 4 and column number of 2: =INDEX(B3:D11,4,2) INDEX retrieves the value at row 4, column 2. To summarize, INDEX gets a value at a given …

(PDF) A Study on the Hard Coal Grindability …

Comparison of Hardgrove index values calculated based on PN-ISO 5074 and PN-G-04530 standards. …

Carr Index / Hausner Ratio : Formula, Definition, …

3. Calculation formula of the Hausner Ratio How to calculate the Hausner Ratio ? What is the Hausner Ratio formula ? The Hausner Ratio of a material is calculated with the following formula : Hausner ratio formula. H = ρ tapped /ρ bulk. With. H : Hausner Ratio ρ tapped: the tapped bulk density of the material (kg/m 3)

Determination of Swelling and ing Index

ing index is calculated by using the following formula. ing index = 1000/a in case of V1. ing index = 1000 × 10/a in case of V2. Where, a = Volume (ml) of decoction used for preparing the dilution in the tube where exactly 1 cm or more is observed. CONCLUSION.

Determination of Swelling and ing Index

ing index is calculated by using the following formula. ing index = 1000/a in case of V1. ing index = 1000 × 10/a in case of V2. Where, a = Volume (ml) of decoction used for preparing the dilution in the …

Hargdrove Grindability Index (HGI) and calculated Bond …

Grindability measurement as a testing method can be divided into two general categories; the Bond (Gbg) and the Hardgrove grindability index (HGI).

Standard Test Method for Hardgrove Grindability Index …

Standard Test Method for Hardgrove Grindability Index (HGI) of Petroleum Coke. 5.1 The HGI is used to predict the ranking of raw petroleum cokes or calcined petroleum cokes …

INDEX function

Note: If you have a current version of Microsoft 365, then you can input the formula in the top-left-cell of the output range, then press ENTER to confirm the formula as a dynamic array formula. Otherwise, the formula must be entered as a legacy array formula by first selecting two blank cells, input the formula in the top-left-cell of the output range, then press …

How to Use the INDEX Function in Excel – With Examples …

The syntax of the array form is given as follows: =INDEX(array, row_num, [column_num]) The parameter array refers to the range of cells where we want to find our lookup value.; The row-num argument is the row number in the array where the lookup value exists.; The column-num argument specifies the column containing the lookup value.; These arguments …

INDEX and MATCH in Excel

Note: the array formula above looks up the salary of James Clark, not James Smith, not James Anderson. Closest Match. To find the closest match to a target value in a data column, use INDEX, MATCH, ABS and MIN in Excel. XLOOKUP. If you have Excel 365 or Excel 2021, use XLOOKUP instead of INDEX and MATCH. The XLOOKUP function is easier to use ...

Producer Price Index (PPI)

Paasche Formula. This PPI formula weighs goods in the proportion of their quantities in the current year. PPI (Paasche) = (∑q_t × p_t)/(∑q_t × p_0 ) x 100. Where, q 0 = quantity in the base period. q t = quantity in the current year. p 0 = price of the product in the base period. p t = price of the product in the current year. Fisher Formula

Excel INDEX function with formula examples

array - is a range of cells, named range, or table.; row_num - is the row number in the array from which to return a value. If row_num is omitted, column_num is required. column_num - is the column number from which to return a value. If column_num is omitted, row_num is required. For example, the formula =INDEX(A1:D6, 4, 3) returns the value at the …

hardgrove inde grinding

formula of hardgrove inde ; ... Hardgrove Test as a Function of Percentage Weight Through 200 Mesh Diagram of Permeability Apparatus I INTRODUCTION Grinding is an important process in such widely differing industries as the coal industry, paint industry, cement industry, and electric power industry, but although there is a wealth of information ...

1.5: The Rydberg Formula and the Hydrogen Atomic Spectrum

Describe Rydberg's theory for the hydrogen spectra. Interpret the hydrogen spectrum in terms of the energy states of electrons. In an amazing demonstration of mathematical insight, in 1885 Balmer came up with a simple formula for predicting the wavelength of any of the lines in atomic hydrogen in what we now know as the Balmer series.

Immunoglobulin G index Equation Page :: MediCalculator

Warning: Physicians and Healthcare Professionals are responsible to employ good clinical judgement in selecting and interpreting Clinical data (inputs, outputs), and to verify all processing (data/knowledge) obtained through the use of Synt®, MediCalc®, iDox®, eH&P™, or any of ScyMed's systems and/or applications. Always double CHECK inputs and computer …

Shannon Diversity Index: Definition & Example

The Shannon Diversity Index (sometimes called the Shannon-Wiener Index) is a way to measure the diversity of species in a community.. Denoted as H, this index is calculated as:. H = -Σp i * ln(p i). where: Σ: A Greek symbol that means "sum" ln: Natural log; p i: The proportion of the entire community made up of species i; The higher the value of H, the higher …