Results 11 to 20 of about 1,271,042 (315)

A Simple Pre-concentration Method for the Determination of Nickel(II) in Urine Samples Using UV-Vis Spectrophotometry and Flame Atomic Absorption Spectrometry Techniques

open access: yesIndonesian Journal of Chemistry, 2019
The cloud point technique was effectively utilized for extraction and pre-concentration of nickel(II) in urine samples before measurement by UV-Vis spectrophotometer and AAS techniques.
Ahmed Fadhil Khudhair   +3 more
doaj   +1 more source

Product Convolution of Generalized Subexponential Distributions

open access: yesMathematics, 2023
Assume that ξ and η are two independent random variables with distribution functions Fξ and Fη, respectively. The distribution of a random variable ξη, denoted by Fξ⊗Fη, is called the product-convolution of Fξ and Fη. It is proved that Fξ⊗Fη is a generalized subexponential distribution if Fξ belongs to the class of generalized subexponential ...
Gustas Mikutavičius, Jonas Šiaulys
openaire   +3 more sources

Product Entropy of Gaussian Distributions

open access: yesThe Annals of Mathematical Statistics, 1969
0. Summary. This paper studies the product epsilon entropy of mean-continous Gaussian processes. That is, a given mean-continuous Gaussian process on the unit interval is expanded into its Karhulnen expansion. Along the kth eigenfunction axis, a partition by intervals of length Ek iS made, and the entropy of the resulting discrete distribution is noted.
Posner, Edward C.   +2 more
openaire   +3 more sources

ANALISIS NILAI TAMBAH PRODUK PERIKANAN LEMURU PELABUHAN MUNCAR BANYUWANGI

open access: yesJurnal Ilmiah Teknik Industri, 2015
Lemuru fisheries in Bali strait, Muncar, Banyuwangi has strategic role for fish canning industries. Sardinella lemuru has low economic value as fresh fish but high as fish canning.
Ratna Purwaningsih
doaj   +3 more sources

The association between risk perception and knowledge with the behavior of using respiratory protection devices in the four National Oil Products Distribution Company

open access: yesطب کار, 2021
Introduction: Having a clear understanding of the relationship between risk perception, knowledge, and protective behaviors could play a significant role in occupational risk management. This study aimed to survey the relationship between risk perception
Maryam Javadi   +4 more
doaj  

TERRITORIAL DISTRIBUTION OF TRADITIONAL ROMANIAN FOOD PRODUCTS [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2023
The sector of traditional products from Romania has been regulated since 2004, but it was not until 2013 that stricter licensing rules were introduced, resulting in a small number of certified products (171 in 2013).
Elena NECULCEA, Ion DONA
doaj  

Thermodynamic analysis of products distribution for propane aromatization process

open access: yesJournal of King Saud University: Engineering Sciences, 2021
The aromatization process of light alkanes is one of the major ways of adding value to the lower saturated hydrocarbons obtained from the refining process and Liquid Petroleum Gas, LPG.
E.E. Peter   +4 more
doaj   +1 more source

Assessing of oil pollution in suburbs of Shahid Tondgoian Oil Storage in Zanjan Province (July 2020)

open access: yesMuhandisī-i Bihdāsht-i Muḥīṭ, 2021
Background: Soils have a key role in establishment and growth of biota and also are as a natural resource, national capital and life substrate in any country.
Jaber Aazami   +3 more
doaj  

On the distribution of Low Hamming Weight products

open access: yesJournal of Inequalities and Applications, 2020
Jeffrey Hoffstein et al. (Discrete Appl. Math. 130:37–49, 2003) introduced the Low Hamming Weight products (LHWP) X = x 1 x 2 x 3 $X=x_{1}x_{2}x_{3}$ as random exponent of elements in a group or a ring to improve the operational efficiency, where each x ...
Jianghua Li, Qiao Li
doaj   +1 more source

Thermochemical Conversion of Oily Sludge, Composition, Hazards, and Treatment Strategies: An Overview

open access: yesAUIQ Complementary Biological System
Oily sludge (OS) is considered one of the most complex by-products produced in the petroleum industry as an unwanted. This work aims to provide a comprehensive review focused on the dangers of stockpiled OS, its sources and contents, as well as its ...
Mahmod A. Abdulqader
doaj   +1 more source

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