نتایج جستجو برای: water target
تعداد نتایج: 938873 فیلتر نتایج به سال:
In extremely shallow water, such as bays and inlets, active sonar may not work sufficiently well to detect underwater threats owing multiple reflections strong reverberations at the sea surface seafloor. this study, we developed "gate sonar" on basis of a unique method detecting changes in pulse signal propagated between pair omnidirectional transducers surveyed area when target passes transduc...
Assessment of Nakdong River Basin Management: Target Water Quality Achievement and Future Challenges
Henry’s law constant is an important equilibrium factor in the mass transfer process of volatile organic compounds (VOCs). A single equilibration technique (SET) was adopted to measure the air-water dimensionless (KH) and the dimensionless apparent (K’H) of Henry’s law constant in an air-wastewater system and air-activated sludge for VOCs at 298 K. Hydrophilic VOCs (methanol, isopropanol and ac...
One of the unresolved issues of the European Water Framework Directive is the unavailability of realistic water reference materials for the organic priority pollutants at low nanogram-per-liter concentrations. In the present study, three different types of ready-to-use water test materials were developed for polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs) and tri...
Fibrates, which are widely used lipidaemic-modulating drugs, are emerging environmental pollutants. However, fibrate concentrations in the environment have not been thoroughly surveyed. Here, we determined concentrations of the most commonly used fibrates and their metabolites in source water and drinking water samples from ten drinking water treatment plants in Shanghai and Zhejiang, China, us...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید