نتایج جستجو برای: size separation
تعداد نتایج: 669985 فیلتر نتایج به سال:
Today we conclude with our study with one-time message authentication codes. In Lecture 1, we defined one-time secure MACs and constructed these MACs using δ − AXU functions. Furthermore, we showed that the security of this construction lost security exponentially with as the min-entropy of the key decreased. We show that the constructions achieved in Lecture 1 were essentially tight. We will d...
a geometric morphometric study of the genus erodiontes was carried out using the elliptic fourier method to demonstrate the effect of vicariance on populations of these psammophilous species. four populations of erodiontes, comprising e. aelleni and e. pfaundleri, were sampled from chartaghi, aboozeidabad, meser and hojatabad. differences between the shapes of the conspecific populations are mi...
Today we conclude with our study with one-time message authentication codes. In Lecture 1, we defined one-time secure MACs and constructed these MACs using δ − AXU functions. Furthermore, we showed that the security of this construction lost security exponentially with as the min-entropy of the key decreased. We show that the constructions achieved in Lecture 1 were essentially tight. We will d...
In this study, linearized transport pore model (LTPM) is applied for modeling nanofiltration (NF) membrane separation process. This modeling approach is based on the modified extended Nernst-Planck equation enhanced by Debye-Huckel theory to take into account the variations of activity coefficient especially at high salt concentrations. Rejection of single-salt (NaCl) electrolyte is inve...
Abstract: point of view. In this study, a shaking-table was used for concentrating a manganese ore sample from the Ghasem Abadarea in Kerman, Iran. Experiments were designed by using LThe influence of each variable and their interactions on the operation of the device was studied. The variables underinvestigation were: table slope, table frequency, water flowrate, feed rate, and particle size. ...
The response of Baban Tsauni (Nigeria) lead-gold ore to gravity separation methods was investigated in this research work. Value addition to run-off mines is always necessary in order to reduce downstream metal extraction costs. Gravity separation methods (the focus of this work) are the cheapest beneficiation methods. This study applied three gravity separation methods: jigging, multi-gravity ...
The separation of molecules with similar size and shape is an important technological challenge. For example, rare gases can pose either an economic opportunity or an environmental hazard and there is a need to separate these spherical molecules selectively at low concentrations in air. Likewise, chiral molecules are important building blocks for pharmaceuticals, but chiral enantiomers, by defi...
How do we derive a sense of the separation of points in the world within a space-variant visual system? Visual directions are thought to be coded directly by a process referred to as local sign, in which a neuron acts as a labeled line for the perceived direction associated with its activation [1, 2]. The separations of visual directions, however, are not given, nor are they directly related to...
A size-dependent particle separation (classification) is one of the most important procedures in biochemical, environmental, or medical analyses and their applications. However, the smaller particle size or the smaller size difference makes the particle classification difficult. The Lab-on-a-Chip concept have encouraged the miniaturization of various separation or selection methods for small pa...
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