Navigation Links
Math detects contamination in water distribution networks
Date:11/28/2012

n assumptions for travel times through the pipes, the author uses a least-squares method to solve the problem. The least squares method provides approximate solutions to optimization problems that are relatively efficient to compute using the tools of numerical linear algebra.

This provides a fast method to identify possible contamination sources, explains Gugat. "For a really accurate model, however, a full system of three-dimensional PDEs is necessary. But with three-dimensional PDEs, simulation is only possible for small networks," he says. "This illustrates that to solve real life problems on real networks, there is a trade-off between the accuracy of the model and its utility."

While the method is tested numerically in the paper, additional work would involve testing the system with an existing water network to demonstrate its workability in practice.

Another future direction is toward elimination of the contaminant. "The second step after the identification of the contamination source is a strategy to flush the polluted water out of the network as fast as possible with acceptable operational cost. The development of an optimal strategy for such a rehabilitation of the water supply is an interesting question for future research," says Gugat.

"For a more detailed model of the process, more complex nonlinear PDEs could be used," he continues. "The cost of the numerical treatment of complex PDEs for large networks is prohibitive. Applied mathematics has to offer models that can be used according to the problem requirements to solve problems with network graphs of a realistic size."


'/>"/>

Contact: Karthika Muthukumaraswamy
karthika@siam.org
267-350-6383
Society for Industrial and Applied Mathematics
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Sensor detects glucose in saliva and tears for diabetes testing
2. Pharmacy Robots Linked to Bacterial Contamination of Drugs
3. The Gluten Free Society Talks About Vitamin Contamination
4. Spectrum Surgical Offers Face Shield Visor for Decontamination
5. Daily disinfection of isolation rooms reduces contamination of healthcare workers hands
6. Lab Contamination Behind Debunked Link Between Virus, Prostate Cancer
7. Soybeans soaked in warm water naturally release key cancer-fighting substance
8. Scientists evaluate different antimicrobial metals for use in water filters
9. Analysis will examine safety of in-hospital underwater births
10. Germ Culprits in Moldy, Water-Damaged Buildings Identified
11. Waterpik Water Flosser Reviews Released Today By WaterpikReviews.net
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... September 23, 2014 Névo takes a ... precision timepiece and adding advanced activity tracking and phone ... monitors steps, distance, calories burned, and more. , ... to adopt healthy habits in their busy lives to ... small changes that produce healthy results, but until now, ...
(Date:9/23/2014)... Parsippany, NJ (PRWEB) September 23, 2014 Many ... hypnosis . Everyone has seen nightclub or television acts in ... of audience members and then uses the power of suggestion ... Most people have also heard about hypnosis as an aid ... examples represent only a fraction of the ways hypnotism can ...
(Date:9/23/2014)... 2014 Medicine in Motion (MIM) is proud ... at 711 W. 38th, Suite G4. After serving the area’s ... location, increased demand for MIM’s superior care led to the ... are extremely excited about bringing our high-quality brand of sports ... Medicine in Motion. “We’ll continue to provide patients with the ...
(Date:9/23/2014)... BuyTopDress.com, a popular supplier of wedding dresses and special occasion ... marine ball dresses . Along with this, the firm ... new items; all of them are now provided with deep ... BuyTopDress.com has won more than 2000 happy customers in the ... products and after-sale services. The company is offering thousands of ...
(Date:9/22/2014)... Plainfield, IL (PRWEB) September 23, 2014 ... in need of a new design and restructuring for their ... the organization had grown. They needed a way to navigate ... accessible way, as well as present the look and feel ... style. , In 1971, when Patch Adams graduated from ...
Breaking Medicine News(10 mins):Health News:Nevo changes the face of fitness wearables with an analogue watch combining activity tracking, phone notifications, and LED goal progress indicators for active lifestyles 2Health News:Nevo changes the face of fitness wearables with an analogue watch combining activity tracking, phone notifications, and LED goal progress indicators for active lifestyles 3Health News:Hypnosis: What You Don't Know, Dr. Richard Dauber with Morris Psychological Group Dispels Myths and Offers Tips about a Valuable Therapeutic Approach 2Health News:Hypnosis: What You Don't Know, Dr. Richard Dauber with Morris Psychological Group Dispels Myths and Offers Tips about a Valuable Therapeutic Approach 3Health News:Hypnosis: What You Don't Know, Dr. Richard Dauber with Morris Psychological Group Dispels Myths and Offers Tips about a Valuable Therapeutic Approach 4Health News:Austin Sports Medicine Practice to Host Grand Opening Event for Second Location 2Health News:Fashionable Marine Ball Dresses Added To BuyTopDress.com’s Collection 2Health News:Idea Marketing Group Launches a New Website for The Gesundheit! Institute 2Health News:Idea Marketing Group Launches a New Website for The Gesundheit! Institute 3
... of studies,School-based sexual abuse prevention programs can teach children ... ,However, the programs have a downside: they ... the review cautions. ,,It was a concern that ... review, but we were pleased that there was an ...
... every time you feel a cold starting isnt such a good ... will most probably end up getting the sniffles . ... over several decades and including more than 11,000 people who took ... ,The review, according to the researchers at the Australian National ...
... of pregnancy rumours once again when she was pictured with ... York premiere of John Travolta starrer Hairspray dressed in a ... reports the Daily Mail. ,Holmes sparked off rumours ... child when she was spotted with bump while visiting new ...
... Sreemathi Wednesday said the government was not averse to inviting ... of a mosquito borne fever in the state that has ... different expert teams have arrived in the state since the ... reports, which have confirmed the fever as chikunguniya and nothing ...
... reserved seats for students suffering from AIDS and cancer in ... reserved one seat for each of the fifty-six courses that ... cancer. ,However, the university feels that one seat ... being, since it do not expects many patients queuing up ...
... that set out to assess the effectiveness and tolerability ... methods of contraception found that they were all good ... implant was found to be any more or less ... ,,The most common side effect with all the implants ...
Cached Medicine News:Health News:School-based Sexual Abuse Prevention Programs 2Health News:School-based Sexual Abuse Prevention Programs 3
(Date:9/22/2014)... , Spanien, September 23, 2014 ... dass sich Fernzugriffe auf eTMF im Jahr ... ermöglicht den Sponsoren von klinischen Versuchsreihen, die ... und Vollständigkeit von Stammdateien mit Informationen über ... zu erfüllen     Die bisher ...
(Date:9/22/2014)... 22, 2014 Levi & Korsinsky is investigating ... "the Company") (NasdaqGS: SIAL ) for possible ... law in connection with the sale of the Company ... to learn more about the investigation: http://zlkdocs.com/SIAL-Info-Request-Form_ma-2199 , ... to you. Under the terms of the ...
(Date:9/22/2014)... , Sept. 22, 2014 Avanir Pharmaceuticals, ... it is offering to sell $200 million of its ... Deutsche Bank Securities and BofA Merrill Lynch are acting ... grant the underwriters a 30-day option to purchase additional ... to be sold in the offering are being sold ...
Breaking Medicine Technology:Branchenweite Umfrage zeigt, dass sich Fernzugriffe auf eTMF im Jahr 2015 verdoppeln werden 2Branchenweite Umfrage zeigt, dass sich Fernzugriffe auf eTMF im Jahr 2015 verdoppeln werden 3Branchenweite Umfrage zeigt, dass sich Fernzugriffe auf eTMF im Jahr 2015 verdoppeln werden 4Branchenweite Umfrage zeigt, dass sich Fernzugriffe auf eTMF im Jahr 2015 verdoppeln werden 5SIGMA-ALDRICH INVESTOR ALERT: Levi & Korsinsky, LLP Investigates the Board of Directors of Sigma-Aldrich Corporation In Connection with the Sale of the Company to Merck -- SIAL 2Avanir Pharmaceuticals Announces Proposed Public Offering of Common Stock 2Avanir Pharmaceuticals Announces Proposed Public Offering of Common Stock 3
... S.C., Sept. 9 At approximately 3:21,PM ... Chairman and Founder of,CureHIV.us, agreed to act ... Global,Humanceuticals, Inc,s., new extremely effective, safe and ... non-government, U.S.,and foreign institutions, organizations, and corporations, ...
... Effective Antibiotics Against ,Superbugs, BOSTON, Sept. 6 ... may have discovered the path,toward developing better drugs ... resistance to common antibiotics. The,researchers have discovered a ... opens to door to new avenues of research., ...
Cached Medicine Technology:Dr. Roger Kenneth Hershline PhD MD, CEO of Global Humanceuticals, Inc. Donates New HIV Drug 2Boston University Biomedical Engineers Find Chink in Bacteria's Armor 2Boston University Biomedical Engineers Find Chink in Bacteria's Armor 3
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
Medicine Products: