Profiling Systems Articles

project background :By the CCCC Shanghai airlines courtyard entrusted, Surveying and mapping profile per 50 meters for 4 kilometers north gulf and Extension of 50 meters area of Zhenjiang Dantu District Jiangxin. Equipment: ME70 Fully automatic Surveying and mapping unmanned ship、ODOM single wave Beam echo sounder ...

May 8, 2017

By Oceanalpha Co., Ltd.

Numerical studies regarding the influence of entrapped air on the hydraulic performance of gullies are nonexistent. This is due to the lack of a model that simulates the air-entrainment phenomena and consequently the entrapped air. In this work, we used experimental data to validate an air-entrainment model that uses a Volume-of-Fluid based method to detect the interface and the Shear-stress ...

Feb. 22, 2017

By IWA Publishing

In summertime a temperature stratification occurs in deep lakes – the surface water is warm, but deep down the water is cold.  This has considerable influence on the nutrient balance and the biological habitat in these lakes. Due to generally higher air temperatures induced by the climate change, both change and have effects on the life conditions of the ecosystems in the lakes. ...

Jan. 18, 2017

By The OTT Hydromet Group

Targeted LC-MS based assays are increasingly applied in the post-discovery Omics area with an emphasis on validation, the first of many phases in translational research; and in studies that are aimed at gaining the understanding of biological systems in terms of drug development and treatment. Understanding the context of analytical results is driving current research, and therefore driving the ...

Dec. 20, 2016

By Waters Corporation

When the capacity of the spillway of a dam is exceeded for a given flood, overtopping occurs; in such cases potentially dangerous hydrodynamic actions and scour downstream of the dam need to be foreseen. Detailed studies of jets impinging in plunge pools from overflow nappe flows are scarce. This work addresses plunge pool flows, and compares numerical results against our own experiments. The ...

Dec. 19, 2016

By IWA Publishing

Overview The DEDISA waste management plant is located in the prefecture of Chania, which is a prefecture of the island of Crete, in the south of Greece. This integrated waste-processing centre serves a population of 155 000 inhabitants, which represents around 25% of the island’s total population. The Chania area also provides 88,000 beds for tourists, and most of the ...

Nov. 30, 2016

By TOMRA Sorting GmbH.

High-innovative and crucial investment added great value for Chania, Greece. Overview The DEDISA waste management plant is located in the prefecture of Chania, which is a prefecture of the island of Crete, in the south of Greece. This integrated waste-processing centre serves a population of 155 000 inhabitants, which represents around 25% of the island’s total population. ...

Nov. 30, 2016

By TOMRA Sorting GmbH.

The current paper is aimed at studying the influence of weather conditions on urban water consumption using available continuous flow measurements from existing district metered areas (DMA), belonging to different Portuguese water distribution systems. A three-step methodology was followed: Data processing; DMA segmentation in terms of billed consumption and socio-demographic characteristics; ...

Nov. 24, 2016

By IWA Publishing

Sargassum swartzii, marine macro brown alga, showed a high malachite green (MG) biosorption capacity in batch mode of operation. The analytical evidence from Fourier transform infrared spectra confirmed the involvement of amine group in the biosorption of MG and electrostatic interaction type of mechanism was proposed to occur between the amine group of dye and the cationic MG dye ...

Nov. 9, 2016

By IWA Publishing

If the current wet climate state of the Souris River Basin continues during the next 10 years, there is a 2 percent chance another extreme flood, similar to that of 2011, will occur, according to a recent report by the U.S. Geological Survey and North Dakota State Water Commission. These and other findings about past and future flooding of the ...

Sep. 29, 2016

By U.S. Geological Survey (USGS)

Nutrients may be eliminated from ice when liquid water is freezing, resulting in enhanced concentrations in the unfrozen water. The nutrients diluted from the ice may contribute to accumulated concentrations in sediment during winter and an increased risk of algae blooms during the following spring and summer. The objective of this study was to evaluate the influence of ice cover on nitrogen ...

Sep. 23, 2016

By IWA Publishing

This study proposes a new approach to selecting a biofilm carrier for immobilization using dissolved oxygen (DO) microsensors to measure the thickness of aerobic and anaerobic layers in biofilm. The biofilm carriers tested were polyurethane foam, mineral coal (MC), basaltic gravel, and low-density polyethylene. Development of layers in the biofilm carrier surface was evaluated using a flow ...

Sep. 20, 2016

By IWA Publishing

Although mixing in lakes has significant environmental and ecological implications, knowledge of mixing dynamics for shallow floodplain lakes has received little attention. In this study, hydrological, thermal and isotopic investigations were undertaken to provide evidence for the mixing in the large, shallow floodplain Poyang Lake (China). Depth profiles of water velocity, water temperature ...

Sep. 17, 2016

By IWA Publishing

Project reference Project: Pilot project in the Northern and Central Europe Project period 1999-2000 Nature of task: simultaneous determination of PAH concentrations in the ambient air of four European countries evaluate the contribution from different emissions to the ambient ...

Aug. 16, 2016

By Exposmeter AB

Project reference Project: Pilot project in the Bangkok region of Thailand Project period 2000 Nature of task: investigation of the air pollution and the connection between ambient air and aquatic plant concentrations of PAHs in the Bangkok region of Thailand contribution of ...

Aug. 16, 2016

By Exposmeter AB

www.kasthewdrilling.co.ug We are Kasthew Borehole / Water Drilling Company Ltd (Uganda). We offer bore-hole drilling services under our company (Kasthew Drilling Co. Ug Ltd). Our team has an experience of handling above 420 projects (in the last 8 years across villages in Uganda and South Sudan. www.kasthewdrilling.co.ug The following are among our listed services; (Uganda) ...

Aug. 9, 2016

By Kasthew Water / Borehole Drilling Uganda Ltd

The assessment of the toxicological properties of raw groundwater may be useful to predict the type and quality of tap water. Contaminants in groundwater are known to be able to affect the disinfection process, resulting in the formation of substances that are cytotoxic and/or genotoxic. Though the European directive (98/83/EC, which establishes maximum levels for contaminants in raw water ...

Jul. 11, 2016

By IWA Publishing

A healthy world ocean is critical to our survival. This is the message that World Oceans Day is trying to remind people of. Oceans are vital to our planet. According to the World Oceans Day website, they are important because: They produce most of the oxygen we breathe They ...

Jun. 6, 2016

By Aquaread Limited

Learn how Vopak uses webWMS to reduce their costs and manage their waste streams in ways both beneficial to the company and the environment.  Laurance Goodman discusses how managing waste on paper, sticky notes and spreadsheets was not an effective way to track profiles, approvals, cost or be in compliance with their permits.  Vopak is currently utilizing ...

May 4, 2016

By regAction

Drill Bit: 8.5” diameter, vertical bit. | PDC Cutters: GTD EW4 R1313 mm | Location: East Siberia | Results: 1,438 meters depth, ROP range 23-25 m/hr | Following significant investment in research and development, GTD have manufactured a new grade of PDC cutter, EW4, with exceptional abrasion resistant and toughness. GTD EW4 has a significant comparative ...

Apr. 19, 2016

By Glynn Technical Diamonds Ltd.