Nonpoint source nitrogen is recognized as a significant water pollutant worldwide. One of the major contributors is agricultural drainage line water. A potential method of reducing this nitrogen discharge to water bodies is the use of immobilized denitrifying sludge (IDS). Our objectives were to (1) produce an effective IDS, (2) determine the IDS reaction kinetics in laboratory column bioreacto...

Membrane fouling limits the effects of long-term stable operation of membrane bioreactor (MBR). Control of membrane fouling can extend the membrane life and reduce water treatment cost effectively. A pilot scale anoxic/aerobic-membrane bioreactor (A/O-MBR, 40 L/hr) was used to treat the hyperhaline municipal sewage from a processing zone of Tianjin, China. Impact factors including mixed liquid ...

This paper proposes and evaluates a multi-level system of steganography (MLSS) which is a combination of steganography, cryptography and compression. Data encryption standard is the encryption algorithm used while the compression algorithm is Lempel-Ziv. Our approach scans through each of the cover image pixels, encodes the message bits with the green object of the pixel component and replaces ...

Dioctadecyldimethylammonium bromide (DODAB) is a double chain cationic lipid, which assembles as bilayer structures in aqueous solution. The precise structures formed depend on, e.g., lipid concentration and temperature. We here combine differential scanning calorimetry (DSC) and X-ray scattering (SAXS and WAXS) to investigate the thermal and structural behavior of up to 120 mM DODAB in water w...

We measure the effects of charge transfer efficiency (CTE) losses on resolved sources in Wide Field and Planetary Camera 2 (WFPC2) images from 1995 to 2008. We compare medium and long exposures of the Hubble Deep Field – North taken with the F606W filter at several epochs against a “truth” mosaic of the field taken with the Advanced Camera for Surveys early in that instrument’s operation. We ad...

The arrival of new media technology has the potential to radically change education. It has become important for both academics and practitioners to understand the behavioural intentions of students towards media technology. Many scales have been developed to measure the attitudes of secondary students towards the usage of media technology. However, few scales have been developed to assess medi...

This research studies the incidence of type substrate, soluble or particulate, in emergence, development, and inhibition bulking activated sludge systems. It was evaluated using volume index (SVI), mixing liquor-suspended solids (MLSS), microscopic analysis biomass, effluent suspended (ESS). In first experiment, four sequencing batch reactors (SBRs) were fed with substrate at a fixed mass, whil...

The occurrence of TERT promoter mutations has been well described in soft tissue sarcomas (STS). However, the biological role of these mutations as well as their impact on telomere length in STS is still unclear. We analyzed 116 patient samples diagnosed with 22 distinct histological subtypes of bone and STS for the occurrence of TERT promoter mutations by Sanger sequencing. We observed TERT pr...