نتایج جستجو برای: ore blending

تعداد نتایج: 17432  

Journal: :Journal of pharmaceutical sciences 2008
Hua Ma Carl A Anderson

This study demonstrates the capabilities of NIR imaging as an effective tool for characterization of pharmaceutical powder blends. The powder system used in this small-scale powder blending study consists of acetaminophen (APAP, the model API), microcrystalline cellulose (MCC) and lactose monohydrate. Mixtures of these components were blended for different times for a total of ten time points (...

2010
Cristian Patrascioiu Bogdan Doicin Grigore Stamatescu

Commercial ecological gasoline is being obtained by blending multiple components. Increasing a refinery’s economic performance depends, among other things, on obtaining optimum blending recipes for the available components. To determine the optimum blending recipe, knowing the mathematical blending model for blending properties estimation and a linear optimization algorithm are necessary. As a ...

Journal: :IACR Cryptology ePrint Archive 2017
Mark Zhandry Cong Zhang

An Order-Revealing Encryption (ORE) scheme gives a public procedure by which two ciphertext can be compared to reveal the order of their underlying plaintexts. The ideal security notion for ORE is that only the order is revealed — anything else, such as the distance between plaintexts, is hidden. The only known constructions of ORE achieving such ideal security are based on cryptographic multil...

2005
B. Samanta S. Bandopadhyay R. Ganguli S. Dutta

Nome placer offshore gold grade estimation is a challenging problem in light of extreme ore heterogeneity. However, this type of phenomenon is quite common in placer ore grade variation. Further, the characterization of spatial ore grade variability and subsequent ore grade modelling of the deposit becomes problematic due to the unavailability of adequate samples. Being located in the Arctic, t...

Journal: :Rock Mechanics and Rock Engineering 2022

The worldwide mining industry consumes a vast amount of energy in reduction fragment size from to mineral processing with an extremely low-energy efficiency, particularly ore crushing and grinding. Regarding such situation, this article describes the effects rock fragmentation by blasting on consumption, productivity, minerals’ recovery, operational costs whole chain processing, sustainability ...

2013
Jin-Young Lee Jyothi Rajesh Kumar Ho-Seok Jeon Joon-Soo Kim

The present research paper deals with the oxidation process of molybdenum ore. The main target of the present study is the up-gradation of MoO3 from roasted molybdenum ore by a leaching process without waste generation. The most important application of hydrometallurgical processing is the leaching process of the ore and it is the primary process to make pure metal from ore. The present investi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1388

copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.

2012
P. Tucker K. A. Lewis M. P. Hallewell

A typical South Crofty ore containing minor amounts of arsenopyrite and chalcopyrite (ore A) gives 65% overall recovery of cassiterite in the spiral circuit, overall enrichment ratios being about 25-35. Maximum recovery occurs in the size range 53-110 /Lm(Fig. 2). However, recently treated ore types (ore B) have been much richer in sulphides, yielding up to 30°" As in the recleaner table concen...

2008
JAMES J. ZHANG JUN ZHANG

A double Ore extension is a natural generalization of the Ore extension. We prove that a connected graded double Ore extension of an ArtinSchelter regular algebra is Artin-Schelter regular. Some other basic properties such as the determinant of the DE-data are studied. Using the double Ore extension, we construct 26 families of Artin-Schelter regular algebras of global dimension four in a seque...

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