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تعداد نتایج: 4256746 فیلتر نتایج به سال:
On the accuracy of the Fokker-Planck and Fermi pencil beam equations for charged particle transport.
Electron beam dose calculations are often based on pencil beam formulas such as the Fermi-Eyges formula. The Fermi-Eyges formula gives an exact solution of the Fermi equation. The Fermi equation can be derived from a more fundamental mathematical model, the linear Boltzmann equation, in two steps. First, the linear Boltzmann equation is approximated by the Fokker-Planck equation. Second, the Fo...
Biomarkers for In Situ Detection of Anaerobic Ammonium-Oxidizing (Anammox) Bacteria Markus C. Schmid, Bart Maas, Ana Dapena, Katinka van de Pas-Schoonen, Jack van de Vossenberg, Boran Kartal, Laura van Niftrik, Ingo Schmidt, Irina Cirpus, J. Gijs Kuenen, Michael Wagner, Jaap S. Sinninghe Damsté, Marcel Kuypers, Niels Peter Revsbech, Ramon Mendez, Mike S. M. Jetten, and Marc Strous* Kluyver Labo...
The phylogenetic affiliation and physiological characteristics (e.g., Ks and maximum specific growth rate [μmax]) of an anaerobic ammonium oxidation (anammox) bacterium, "Candidatus Scalindua sp.," enriched from the marine sediment of Hiroshima Bay, Japan, were investigated. "Candidatus Scalindua sp." exhibits higher affinity for nitrite and a lower growth rate and yield than the known anammox ...
The Increasing Interest of ANAMMOX Research in China: Bacteria, Process Development, and Application
Nitrogen pollution created severe environmental problems and increasingly has become an important issue in China. Since the first discovery of ANAMMOX in the early 1990s, this related technology has become a promising as well as sustainable bioprocess for treating strong nitrogenous wastewater. Many Chinese research groups have concentrated their efforts on the ANAMMOX research including bacter...
Datagram Transport Layer Security (DTLS) as Transport for Session Traversal Utilities for NAT (STUN)
This document specifies the usage of Datagram Transport Layer Security (DTLS) as a transport protocol for Session Traversal Utilities for NAT (STUN). It provides guidance on when and how to use DTLS with the currently standardized STUN usages. It also specifies modifications to the STUN and Traversal Using Relay NAT (TURN) URIs and to the TURN resolution mechanism to facilitate the resolution o...
The natural relations for sets are those deenable in terms of the emptiness of the subsets corresponding to Boolean combinations of the sets. For pairs of sets, there are just ve natural relations of interest, namely, strict inclusion in each direction, disjointness, intersection with the universe being covered, or not. Let N denote f1; 2; : : :; ng and ? N 2 denote f(i; j) j i; j 2 N and i < j...
Industrialization has agreat impact on our lives. Philosophers have been warning us about the danger of industrialization .We realize the price paid for progress only when a nightmarish incident like Bhopal Gas Tragedy involving loss of numerous lives and many after effects occurs .In the present paper we will discuss the incident ,its impact on the health of the victims even today when two and...
Full-field transmission X-ray microscopy is a unique non-destructive technique for three-dimensional imaging of specimens at the nanometer scale. Here, the use of zone-doubled Fresnel zone plates to achieve a spatial resolution better than 20 nm in the hard X-ray regime (8-10 keV) is reported. By obtaining a tomographic reconstruction of a Ni/YSZ solid-oxide fuel cell, the feasibility of perfor...
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