R. C. Carter Articles | Environmental XPRT

The water-energy-climate nexus in Mexico`s agricultural use of groundwater

Human water use is a main driver of the spatial distribution and temporal availability of water resources globally (Vörösmarty et al. 2000). In the specific case of groundwater sources there are three interlinked processes that drive water balances in diverse regions globally: 1) intensification of groundwater irrigation, 2) electrical energy supply for agriculture, and 3) climatic ...

Apr. 21, 2013

By IWA Publishing

Exergy analysis of a Vapour Compression Refrigeration system with R-22, R-407C and R-410A

The parametric investigations of actual Vapour Compression Refrigeration (VCR) cycle in terms of Coefficient of Performance (COP), Exergy Destruction (ED) and exergetic efficiency of refrigerants R-22, R-407C and R-410A have been predicted with the help of a developed computational model. The present investigation has been carried out for evaporator and condenser temperatures in the range of ...

Sep. 12, 2007

By Inderscience Publishers

Managing technology development at NEC Corporation

The profile of NEC is briefly introduced. The concept of C&C as the result of the eventual fusion of communication and computer technology is NEC's corporate philosophy. The distributed R&D regime is the principal feature of technology development management at NEC. Research and project activities and their management at NEC R&D Group are described. The Core Technology Programme is introduced as ...

Feb. 12, 2004

By Inderscience Publishers

PVC-piping promotes growth of <italic>Ralstonia pickettii</italic> in dialysis water treatment facilities

PVC-piping promotes growth of Ralstonia pickettii in dialysis water treatment facilities

Biofilms forming inside dialysis water treatment systems are one of the main sources of microbiological contamination. Among the bacteria found in biofilms, Ralstonia pickettii is frequently encountered in dialysis water treatment systems and has been shown to develop extreme oligotrophic talents. In Austria, R. pickettii was exclusively detected in high numbers in dialysis water treatment ...

Aug. 29, 2013

By IWA Publishing

Testing the sustainability of the Slovenian (PAYG) pension system using the Lee?Carter method

Assumptions about the future development of people?s longevity have a crucial impact on the long-term sustainability of the public pension system. The use of standard methods to estimate longevity has led to systematically underestimates of increase in longevity. We use the Lee?Carter (LC) model to forecast demographics projections for the Slovenian population which leads to results much closer ...

Dec. 2, 2011

By Inderscience Publishers

Operational short term health impact assessment of air pollution modelling system over Europe

The last decade, scientific studies have indicated an association between air pollution to which people are exposed and wide range of adverse health outcomes. We have developed a tool which is based on a model (MM5-CMAQ) running over Europe with 50 km spatial resolution, based on EMEP annual emissions, to produce a short-term forecast of the impact on health. In order to estimate the mortality ...

Dec. 1, 2014

By Inderscience Publishers

Putting the C in R&D - customer focus for technologists

Finding a way to align technology with customer needs (and hence business objectives), and translate what R&D is doing into something that the rest of the business can understand (and hence effectively influence) has been a problem for years. Developing and using a Customer Needs Tree is a simple and effective way of solving the problem, with specific benefits in idea generation, technology ...

Feb. 11, 2004

By Inderscience Publishers

C/Z/U Roll Forming Machine

Sinowa offers C-type z-type and U-type purlin machine for various plate cuts. Without exceptions, they are all the fruition of the efforts made by the technical R&D team of Sinowa, with features of excellent quality, such as reasonable product structure, beautiful appearance, and high production efficiency. No matter whether it is the C-type, Z-type, or CZ interchangeable type, they are the ...

Apr. 1, 2020

By Zhenjiang Sinowa Polyurethane Equipment Co.,Ltd.

Canarina DESCAR software · wastewater modeling · algorithms 3

The pollutant concentration, in a certain instant, and at a distance x (meters) in the X-Axis and at a distance y(meters) in the Y-Axis will be given by: c =cc exp[-(r/b)2] (1) where c is the pollutant concentration, r is the distance from the point (that we are calculating) to the center of the line that forms the polluting plume, cc is the pollutant concentration in the center of the plume ...

Nov. 25, 2011

By Canarina Environmental Software

Second-law analysis of two-stage vapour compression refrigeration plants

This paper describes a Second Law Analysis based on experimental data of a two-stage vapour compression facility driven by a compound compressor for medium and low-capacity refrigeration applications, which operates with the most usual inter-stage configurations (direct liquid injection and subcooler). The experimental analysis is performed for an evaporating temperature range between ?36°C and ...

Oct. 1, 2010

By Inderscience Publishers

Emergency logistics and risk mitigation in Thailand following the Asian tsunami

A series of recent natural disasters (earthquakes, floods, droughts) and man-made crises (civil unrest, war, political disturbance) have highlighted the vulnerability of communities to unstable conditions. Reaching displaced people in crisis conditions is heavily dependent on the effectiveness of the supply chain and its management systems. Disaster responses have been modelled into, for example, ...

Jun. 10, 2009

By Inderscience Publishers

McDonald’s equipped with SmartPacks save time & money - Case Study

Fast food restaurants like McDonald’s are known for quick service, but they also need to be clean and keep their costs down. One way that some McDonald’s save time and money is by installing a SmartPack automatic trash compactor in their restaurant lobby. C & R Restaurant Management, based in West Jordan, Utah, was started by Chuck Sparrer when he purchased his first ...

Oct. 6, 2017

By Harmony Enterprises, Inc.

Time‐dependent species sensitivity distributions

Time is a central component of toxicity assessments. However, current ecotoxicological practice marginalizes time in concentration–response (C‐R) modeling and species sensitivity distribution (SSD) analyses. For C‐R models, time is invariably fixed, and toxicity measures are estimated from a function fitted to the data at that time. The estimated toxicity measures are used as inputs to the SSD ...

Nov. 12, 2012

By John Wiley & Sons, Ltd.

Removal of cadmium and zinc from contaminated wastewater using Rhodobacter sphaeroides

Rhodobacter sphaeroides was used for bioremediation of wastewater polluted with cadmium (Cd) and zinc (Zn). The tolerance of the microorganism to selected heavy metals (HMs), as well as the effects of pH, temperature and inoculum size on the removal rate, was investigated. The remediation effects of R. sphaeroides were analysed at different initial concentrations of HMs. Bioremediation ...

Dec. 23, 2016

By IWA Publishing

Wercs digs up the dirt on clean

Latham firm tracks chemical compounds of household items so retailers can make safer products for today's eco-savvy consumers LATHAM You don't know what's in that household cleaner underneath the sink but one local company does. And the work it does for the nation's largest retailers tracking chemical ingredients in thousands of items could push safer products onto store shelves across America. ...

Apr. 12, 2009

By UL - The WERCS

Clonal variation in reproductive response to temperature by a potential bulking control agent, <italic>Lecane inermis</italic> (Rotifera)

Clonal variation in reproductive response to temperature by a potential bulking control agent, Lecane inermis (Rotifera)

The novel idea of using rotifers Lecane inermis (Rotifera, Monogononta) as a tool to overcome activated sludge bulking generates an on-going need to study rotifer biology. The results of biological research on rotifers can serve to improve the method so that it can be most effective when applied in treatment plants. The aim of this study was to test the effect of temperature on four selected ...

Jan. 1, 2011

By IWA Publishing

Organising deliberate innovation in knowledge clusters: from accidental brokering to purposeful brokering processes

This article focuses on how to boost innovation by stimulating the emergence of joint R&D projects within cluster initiatives. Based on empirical studies on R&D-oriented cluster initiatives, it sheds light on cluster R&D management, a key but hardly ever studied issue, and explains how cluster managers attempt to stimulate and to intermediate innovation by applying three central tactics, ...

Oct. 1, 2013

By Inderscience Publishers

5.5V Fully Sealed (Waterproof) Supercapacitor

Technical data SE Series Performance characteristics: Standard energy series Typical applications: RAM, detonator, car recorder, smart meter, vacuum switch, digital camera, motor drive, clock circuit, UPS, toy, program-controlled switch, etc. SP Series Performance characteristics: Standard power series Typical applications: RAM, detonator, car recorder, smart meter, vacuum switch, ...

Sep. 15, 2019

By Jinzhou Kaimei Power Co., Ltd.

Examination of Pb<sup>2+</sup> bio-sorption onto <italic>Rhodotorula mucilaginosa</italic> using response surface methodology

Examination of Pb²⁺ bio-sorption onto Rhodotorula mucilaginosa using response surface methodology

With the rapid industrial development, wastewater has been a risk for environmental contamination. We aimed to explore the optimum condition and mechanism of Pb2+ bio-sorption onto Rhodotorula mucilaginosa WT6-5. Optimization of initial concentration of Pb2+, initial pH, and adsorption time for Pb2+ bio-sorption onto R. mucilaginosa WT6-5 was performed using response ...

Aug. 19, 2015

By IWA Publishing

Senate EPW hearing on TSCA reform

On Wednesday, March 18, 2015, the U.S. Senate Committee on Environment and Public Works (EPW) held a hearing on S. 697, the Frank R. Lautenberg Chemical Safety for the 21st Century Act. The following individuals testified during the hearing: James Jones, Assistant Administrator for the Office of Chemical Safety and Pollution Prevention, U.S. Environmental Protection Agency (EPA); Dr. Richard ...

Mar. 20, 2015

By Bergeson & Campbell, P.C.