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Showing posts from April, 2019

Options, Call & Put options, futures

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Option –  the right to buy or sell a futures contract at a particular price. The right to buy a futures contract is called a Call Option. The right to sell a futures contract is called a Put Option. The price chosen for which to buy or sell is called the Strike Price. The price paid for the right is called the Option Premium. Example of Call option order: Buy one contract November wheat call - €250 strike at €15 premium. Call Option  A contract which gives the purchaser the right, though not the obligation, to purchase the underlying security at a specific price within a specific time frame Suppose the Infosys is currently trading at INR 900. A trader thinks that the current price of Infosys is undervalued and expected to increase in the future. In this case, he buys the call option of Infosys and pays a premium to the call seller. Suppose the price of Infosys increases to INR 1000 at expiry. Then the buyer will exercise the option since he has the right to exercise. In this c

English to Parsi vocabulary 12

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English to Persian vocabulary لغت نامه انگلیسی به فارسی   English to Persian vocabulary 12

English to Parsi vocabulary 11

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English to Persian vocabulary لغت نامه انگلیسی به فارسی  

English to Parsi vocabulary 10

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English to Persian vocabulary لغت نامه انگلیسی به فارسی  

English to Parsi vocabulary 09

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English to Persian vocabulary لغت نامه انگلیسی به فارسی 

life-cycle assessment (LCA)

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life-cycle assessment (LCA)  A life-cycle assessment (LCA, also known as life-cycle analysis, ecobalance, and cradle-to-grave analysis) is a technique to assess environmental impacts associated with all the stages of a product's life from-cradle-to-grave (i.e., from raw material extraction through materials processing, manufacture, distribution, use, repair and maintenance, and disposal or recycling).  LCA’s can help avoid a narrow outlook on environmental concerns by:  Compiling an inventory of relevant energy and material inputs and environmental releases; Evaluating the potential impacts associated with identified inputs and releases;  Interpreting the results to help you make a more informed decision. Life cycle assessment  PGM LCA  Based on the IPA LCA (international platinum group metal association – life cycle assessment) study of the PGMs life-cycle assessment, the below mentioned benefits and impact were found. I. Impacts  a. Electrici

surface blast design equations

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some empirical equations for surface blast design 1.   By Fraenkel 1944. where:                    = Maximum burden for good fragmentation, in meters (m)               d            = Borehole diameter (m)                         = Charge height (m)               H           = Depth of the blast-hole (m) 2.   By Pearse 1955 where:              K    = A constant. its value varies from 0.7 - 1.0             Ps   = Borehole pressure, MPa                 = Tensile strength,             d     = Diameter of borehole, m     3.    By Langefors and Kihlstrom 1968 Where:               B max = Maximum burden for good fragmentation (m)                D         = diameter of hole (m)               ρe        =Density of the explosive in the borehole (Kg/m3)               Se        = Relative Weight strength of the explosive               f          = Degree of confinement of the blasthole.              S/B      = Spacing to burden ratio              

Problems caused by Excessive groundwater withdrawal

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برداشت بی رویه و غیر اصولی آب های زیرزمینی  ( Problems caused by Excessive groundwater withdrawal) keywords: groundwater, groundwater withdrawal, groundwater withdrawal issues, groundwater depletion issues, آبهای زیرزمینی، برداشتن آبهای زیرزمینی، پیامد های برداشتن آبهای زیرزمینی، پیامد های تخلیه آبهای زیرزمینی، ابهای زیر زمینی ایران 

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