conductivity analyzer Articles | Environmental XPRT

Study on the dynamic relation between spring discharge and precipitation in Fusong County, Changbai Mountain, Jilin Province of China

Mineral water is the main source of drinking water and is a dominant component of local economic development in Fusong County, Changbai Mountain, Jilin Province of China. Precipitation is the main recharge factor for mineral water in Fusong County; therefore, it is necessary to determine whether precipitation can effectively guarantee the supply of mineral water resources. In this study, ...

Oct. 20, 2015

By IWA Publishing

Mg/Al double-metal hydroxide regeneration of anion exchange resin by electric field intensification

Fouled anion exchange resins were regenerated by electric field intensification of Mg/Al double-metal hydroxides. Regenerative experiments were performed with varying voltages (10–30 V) and dosages of Mg/Al hydroxides (0.045–0.135 mol and 0.015–0.045 mol, respectively) for 1–5 h. Optimal results were obtained under the following regenerative conditions: 20 V, 4 h, and 0.09/0.03 mol of Mg/Al ...

Dec. 20, 2016

By IWA Publishing

Joint estimation of hydraulic conductivities of two sand samples in a W-tube system with a bi-exponential response

The motivation for this paper is the practical problem of interpreting bi-exponential rate-of-rise curves that are observed during many field piezometric tests. In the authors' previous study, a laboratory W-tube system of water flow through two samples of sand was introduced with an adequate mathematical model. The desired bi-exponential character of water flow was obtained by placing two ...

Dec. 12, 2015

By IWA Publishing

Improving Machine Availability in Cranes at Panama Ports - Case Study

Challenge: Panama Ports Company administers two ports in the Panama Canal. Their mission is to become a leading port in the Americas for services and logistics. As part of the goal leading towards system-wide efficiencies there was a need to reduce maintenance costs for bearings by improving lubrication methods and reducing premature bearing failure. Solution: New technologies for ...

Jan. 28, 2020

By UE Systems Inc

Making a business case out of CSR: Tips

Every company understands differently the meaning of Corporate Social Responsibility. However, CSR encompasses four basic elements: The company behavior towards its employees, the market, the society and the environment. In a sense, companies through CSE do nothing more but to return a part of their revenue to society and the environment they operate into. As companies are a part of society, they ...

Jul. 13, 2012

By Centre for Sustainability and Excellence

Identifying the causes of sediment‐associated toxicity in urban waterways in South China: Incorporating bioavailabillity‐based measearuments into whole‐sediment toxicity identification evaluation

Sediments in urban waterways of Guangzhou, China were contaminated by a variety of chemicals and showed prevalent toxicity to benthic organisms. A combination of whole‐sediment toxicity identification evaluation (TIE) procedure and bioavailability‐based extraction approaches were used to identify the causes of sediment toxicity. Four of the six sediment samples collected caused 100% mortality ...

Mar. 5, 2015

By John Wiley & Sons, Ltd.

Settlement of Compacted Clay in a Cyclic Direct Simple Shear Device

The results of 36 cyclic strain-controlled direct simple shear tests on a low-plasticity compacted clay are presented and analyzed. The tests were conducted in a Marshall Silver-type device, which utilizes the Norwegian Geotechnical Institute (NGI) type of short cylinder specimen confined in a wire-reinforced rubber membrane. Three degrees of compaction achieved by the modified compaction test ...

Dec. 1, 1992

By ASTM International

Electrokinetics - Technology Overview

Electrokinetics separates and extracts contaminants from saturated or unsaturated soils, sludges and sediments, and groundwater. The goal of electrokinetic remediation is to effect the migration of subsurface contaminants in an imposed electric field via electroosmosis, electromigration and/or electrophoresis. These phenomena occur when the soil is electrically charged with a low voltage current. ...

Jan. 1, 1997

By Groundwater Remediation Technologies Analysis Center

Visualizing LIMS: How to develop an RFP to get the system you want

A Request for Proposal (RFP) is a comprehensive way to supply information on how a Laboratory Information Management System (LIMS) will meet the requirements of your laboratory. A LIMS RFP is an essential tool for helping visualize a LIMS implementation project, and it also provides a solid roadmap for the laboratory-vendor relationship. A properly developed RFP describes in detail the desired ...

Apr. 1, 2010

By Accelerated Technology Laboratories

Organic matter removal during pilot-scale soil aquifer treatment for domestic wastewater in the tropics

The potential of enhancing water uses using soil aquifer treatment (SAT) is an interesting alternative for tropical regions, limited only by lack of knowledge on its performance in local conditions and the feasibility of adapting this technology. A SAT pilot study was conducted to analyze the phenomena associated with the transformation of organic matter (OM) from domestic wastewater. ...

Aug. 7, 2014

By IWA Publishing

Excess propagation and disinfection control of Copepod in an ozone-granular activated carbon filter in southern China

The reasons for the excess propagation of Copepod in an ozone-granular activated carbon filter were investigated and batch experiments were conducted to analyze the influences of CT value, pH and organic matter on the efficiency of disinfection of Copepod using chlorine and chloramines. The experimental results revealed that Copepod accounted for 70% of the zooplankton in the sand filter effluent ...

Dec. 1, 2010

By IWA Publishing

RO filtration of biologically treated textile and dyeing effluents using ozonation as a pre-treatment

Bench-scale experiments were conducted to investigate the application of ozonation pre-treatment for biologically treated textile and dyeing wastewater to improve performance of the RO process. Based on ozonation experiments, four specific ozone consumptions (SOC), 0, 0.3, 0.6, 4.0 mg O3/mg DOC0 were chosen for study of the effects of ozonation on the reverse osmosis (RO) process. Membrane flux ...

Aug. 1, 2010

By IWA Publishing

The value of the 'triple pole' approach in bargaining for vertical cooperative advertising and the research challenges for the evolution of this topic in the cooperative advertising literature

The research aim of this paper was to measure the value of the 'triple pole' approach in bargaining and investigate the potential evolutions and research challenges considering the evolution of the scholarly research in the cooperative advertising domain based on two studies. For the first study, the authors assessed sets of concepts that best reflect the cooperative advertising theme by ...

Apr. 14, 2014

By Inderscience Publishers

Knowledge distribution among market experts: a closer look into the efficiency of information gathering for innovation projects

Information gathering from sources outside the company plays a critical role in most innovation projects. Particularly, it seems promising to approach external market experts to develop an in-depth understanding of current use problems, changing customer needs and trends for new product solutions. When planning expert interviews, firms are confronted with the question of whether knowledge is ...

Feb. 3, 2004

By Inderscience Publishers

Testing for inflation convergence: a panel unit–root approach

We conduct empirical analyses to study the inflation performance in three groups of economies, namely the European Monetary Union (EMU), the developed and the developing inflation targeting (IT) economies. In particular, our first objective is to compare the performance of inflation targeting regime versus monetary union of EMU in achieving lower inflation rate. The second objective is to detect ...

Feb. 1, 2013

By Inderscience Publishers

How perceived quality of online reviews affects consumer purchase intention

The effect of online product reviews on product sales has become a central interest of marketing and information systems researchers because of the popularity of such type of reviews. However, most previous studies were conducted at the product level, rather than at the website level. Analysing the influence of online reviews on consumer intention to purchase on websites is necessary because ...

Aug. 4, 2011

By Inderscience Publishers

Global value chain reconfiguration through external linkages and the development of newcomers: a global story of clusters and innovation

Industrial district literature has focused on local endogenous development. So far, these works analyse the external ties between clusters and the reconfiguration of global value chains (GVC) in the last decade, opening a new research stream to understand innovation and its impact on differing territories. This article analyses intercluster linkages through multinational enterprise (MNE) ...

Aug. 1, 2011

By Inderscience Publishers

A clustering–based analysis of a social internetworking scenario

Social network analysis is an emergent research stream aiming at studying the characteristics of social networks. Several methodologies have been developed to extract useful knowledge from single social networks, but little attention has been devoted to studying multi–social–network scenarios, whose importance is, by contrast, dramatically growing, because social internetworking systems may offer ...

Jun. 9, 2014

By Inderscience Publishers

Technology and business opportunities for small and medium enterprises in Japan: the role of research networks

Industrial technology contributes significantly to the growth of Small and Medium Enterprises (SMEs) in Japan. Driven by an intense competitive environment, businesses in Japan must continuously innovate to benefit from industrial technologies. As technological complexity increases, Japanese firms have to develop flexible knowledge acquisition and technology development methods. Collaborations ...

Feb. 11, 2004

By Inderscience Publishers

Evaluation of structural performance in the immediate aftermath of an earthquake: a case study of the 2011 Christchurch earthquake

Immediately following an earthquake event, there is pressure for experts to provide information regarding what has just happened and why. What is reported in the media can influence the confidence within the society regarding the engineering profession, and may also influence policy that is established as a result of the event. Using the earthquake that occurred in Christchurch, New Zealand, in ...

Jun. 22, 2012

By Inderscience Publishers

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