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A three-pronged coordinated research effort was undertaken by cooperating utilities at three different experimental scales investigating bioaugmentation, enrichment and performance of anammox organisms in mainstream treatment. Two major technological components were applied: density-based sludge wasting by a selective cyclone to retain anammox granules and intermittent aeration to repress nitri...
Gastric cancer in patients who have undergone bariatric surgery is rare. The authors present a case of stomach cancer in a patient 6 years after adjustable silicone gastric band placement. The tumour was located below the band, not in its direct vicinity. Aetiological and risk factors of stomach cancer incidence in obese patients are discussed in this case study.
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...
This paper deals with a short term forecasting non-stationary time series using wavelets and splines. Wavelets can decompose the series as the sum of two low and high frequency components. Aminghafari and Poggi (2007) proposed to predict high frequency component by wavelets and extrapolate low frequency component by local polynomial fitting. We propose to forecast non-stationary process u...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
The indispensable vital structure in any harbor is a breakwater in order to make available calm water region inshore. Pile breakwater can be employed as a small coastal protection structure where tranquility required is low. This study is concerned with CFD study on the performance of perforated hollow pile to dissipate wave energy and the novelty of this investigation is the role of perforatio...
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