Borj, Tunisia
Borj, Tunisia

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Amarnath C.A.,Hanyang University | Kim H.K.,Kookmin University | Yi D.K.,Gachon University | Lee S.,Water Research Center | And 2 more authors.
Bulletin of the Korean Chemical Society | Year: 2011

A solution processable polymer was synthesized, by incorporating pyrene groups into the backbone of the polyaniline chain, and used as an emissive layer in an organic light emitting diode. The polyaniline base was reacted with acid chloride of pyrene butyric acid to form pyrene-functionalized polyaniline chains. The source of pyrene moiety was acid chloride of pyrene butyric acid. The formation of polymer from acid chloride of pyrene butyric acid and polyaniline was confirmed by the FTIR and 1H-NMR spectroscopy. Differential scanning calorimetry revealed high glass transition temperature of 210°C. Due to the presence of pyrene moieties in the backbone, the polyaniline synthesized in the present study is solution processable with light emitting property. The photoluminescence spectrum of the polymer revealed that emission lies in the blue region, with a peak at 475 nm. The light emitting device of this polymer exhibits the turn-on voltage of 15 V.


News Article | November 1, 2016
Site: www.eurekalert.org

The state's three largest public research institutions have signed a Memorandum of Understanding, which expresses the intent of the parties to increase research collaborations on complex challenges and provide additional research and training opportunities for students in the state. The memorandum was signed recently by leaders at the University of Washington, Washington State University and Pacific Northwest National Laboratory. "By working together, we can increase the impact and raise the visibility of the science and technology that our state is delivering to address pressing challenges in energy, the environment and global security," said PNNL Director Steven Ashby. "We are especially well positioned to provide national leadership in clean energy, materials science and advanced computing, among other areas." "This agreement brings focus to the collaborative efforts of the three primary public research institutions in our state and sets the stage for increasing our joint efforts to address major topics of importance," said WSU President Kirk Schulz. "It is also an excellent opportunity in support of our goal of maintaining a preeminent research portfolio and being recognized as a top 25 public research institution. It will provide a transformative educational experience for the fortunate graduate and undergraduate students given a chance through this program to work with some of our nation's greatest researchers." "Our impact in the state of Washington and the world can be even greater when our largest public research institutions partner to tackle some of the greatest challenges in clean energy, smart manufacturing, and environment and sustainability research," said UW President Ana Mari Cauce. "We are proud of the collaborations our faculty and students have forged with researchers around the state to advance development of new materials, energy storage and the power grid at a time when these technologies are crucially needed." PNNL and the two universities already collaborate on several research efforts. Recently, the three institutions were selected to host a federal-state clean energy testbed project designed to develop and demonstrate the technologies needed to create smart buildings, campuses and cities which better manage energy use. The Transactive Campus project is building on previous collaborations between the three institutions in the Pacific Northwest Smart Grid Demonstration Project, whose results are helping create a more efficient and effective power grid. Another recent collaboration is the Joint Center for Deployment and Research in Earth Abundant Materials, or JCDREAM. Established by the state legislature in 2015, JCDREAM is a three-member partnership designed to accelerate the development of next generation clean energy and transportation technologies, specifically looking at replacing reliance on precious metals with Earth-abundant materials. And in just the last four months, the three institutions have been awarded multimillion dollar projects to bring smart manufacturing technology to energy intensive manufacturing in the Pacific Northwest and to better understand the chemistry of radioactive waste in order to enable more effective cleanup. The Department of Energy is funding both of these projects. "By teaming together, PNNL, UW and WSU have even more opportunities to attract federal funding to the Northwest," said Ashby. While the intent is to grow the number and size of collaborations, PNNL already enjoys strong partnerships with both universities. UW faculty in the College of Engineering and the College of Arts & Sciences partner with PNNL scientists on clean energy research, and the two institutions train and empower researchers to tackle some of society's biggest problems through data-driven research at the Northwest Institute for Advanced Computing. PNNL partners with WSU on research involving radiochemistry, and developing a better understanding of the food-energy-water nexus. The institutions are also engaged in research focused on creating better catalysts, and advancing the areas of bioenergy, power engineering and smart manufacturing. These collaborations involve numerous WSU campuses, colleges and units, including WSU's Colleges of Arts & Sciences, Voiland College of Engineering and Architecture, College of Agriculture, Human, and Natural Resource Sciences, Elson S Floyd College of Medicine, the Center for Environmental Research, Education & Outreach, and the Water Research Center. One outcome of the Memorandum of Understanding will be increasing the number of joint or dual appointments at the three institutions. "Joint appointments elevate the scientific impact and productivity of researchers by increasing collaboration, facilitating research across scientific disciplines, providing greater access to specialized instrumentation and research tools, and by giving students and interns opportunities to conduct research they might not be able to do otherwise," said Doug Ray, PNNL's Director of Strategic Partnerships. Another priority outlined in the memorandum will be bringing more science and engineering graduate students to PNNL. More than 100 students from UW and WSU are currently participating in internship or other programs at PNNL's main campus in Richland, and its marine sciences laboratory in Sequim, Wash. Ray says that number will grow significantly as a result of the Memorandum of Understanding, as will the number of dual staff and faculty appointments. The University of Washington was founded in 1861 and is one of the pre-eminent public higher education and research institutions in the world. The UW has more than 100 members of the National Academies, elite programs in many fields, and annual standing since 1974 among the top five universities in receipt of federal research funding. Learn more at uw.edu, or follow the UW on Facebook, Twitter, Instagram and LinkedIn. Founded in 1890, Washington State University has evolved from an agricultural college into a leading research university where scholarship and research are deeply rooted in the ethos of accessibility and public service. Today, WSU has an instructional faculty of more than 1,500 and nearly 30,000 students enrolled in five locations statewide and online through WSU Global Campus. The university's strong and varied academic programs feature some 200 fields of study, 95 separate majors and a wide variety of minors, specialized options and certificate programs. For more information, visit wsu.edu, or follow WSU on social media at socialmedia.wsu.edu. Interdisciplinary teams at Pacific Northwest National Laboratory address many of America's most pressing issues in energy, the environment and national security through advances in basic and applied science. Founded in 1965, PNNL employs 4,400 staff and has an annual budget of nearly $1 billion. It is managed by Battelle for the U.S. Department of Energy's Office of Science. As the single largest supporter of basic research in the physical sciences in the United States, the Office of Science is working to address some of the most pressing challenges of our time. For more information on PNNL, visit the PNNL News Center, or follow PNNL on Facebook, Google+, LinkedIn and Twitter.


PANACA, Nev., Nov. 17, 2016 (GLOBE NEWSWIRE) -- U.S. Rare Earth Minerals, Inc., (PINK:USMN) announced today that Research will be Conducted by King Faisal University on EXCELERITE®.   Donita R. Kendig, CFO of USMN stated, “Ben Benzinge, Master Distributor for U.S. Rare Earth Minerals, Inc., met Dr. Sherif Elegainey of King Faisal University at the 2016 Saudi Arabia Agro Exhibition and introduced him to the many applications of EXCELERITE®. Dr. Khalid Alhudaib, his colleague and the Head of the Plant Protection Department, performed an analysis on the sample provided him. Dr. Alhudaib has now informed us he has arranged for the agricultural and veterinary training station to test EXCELERITE® on fish, poultry, cucumber and goats. They will also test EXCELERITE® on diseased Date Palm and Palm Oil trees based on the reported rejuvenation of trees treated with EXCELERITE® in Colombia. More about Professor Alhudaib at www.dralhudaib.com. About King Faisal University King Faisal University has a total enrollment of 16,945 and a staff of 2,107.  It is a comprehensive university consisting of multiple colleges and research centers, including the Deanship of Graduate Studies and Deanship of Academic Research, established in 1984 and 2000 respectively. These departments have enabled the university to offer a number of postgraduate programs and facilitate academic research in most colleges. In addition to sponsoring scientific research, the university has made numerous contributions to the local community and has addressed environmental concerns. In order to expand its reach into society, the university established twelve scientific research centers, including the Date Palms Research Center, Water Research Center, Camel Research Center, Veterinary Research & Animal Husbandry Center, Islamic Architecture & Solar Energy Unit, and Prince Muhammad Bin Fahad Bin Abdulaziz Medical Research Center. U.S. Rare Earth Minerals, Inc. U.S. Rare Earth Minerals, Inc. (USMN) is engaged in the sales and distribution of products derived from the Company’s mining activities in Nevada relating to certain natural mineral deposits and other natural rare earth minerals.  Products of USMN consist of natural minerals for animal consumption as well as agricultural products sold under the brand name EXCELERITE®. USMN is headquartered in Reno. The company maintains a web site at: www.us-rem.com. This press release contains statements that may constitute "forward-looking statements" within the meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934, as amended by the Private Securities Litigation Reform Act of 1995. Those statements include statements regarding the intent, belief or current expectations of U.S. Rare Earth Minerals, Inc., and members of management as well as the assumptions on which such statements are based. Prospective investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and actual results may differ materially from those contemplated by such forward-looking statements. The company undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results.


Hamouda S.B.,King Abdulaziz University | Hamouda S.B.,Water Research Center | Akhtar F.H.,King Abdulaziz University | Elfil H.,Water Research Center
Desalination and Water Treatment | Year: 2014

Abstract: Tunisian norms for drinking water tolerates a maximum TDS of 1.5 g/L and the domestic water presents usually salinity greater than 500 mg/L. In the last years, several small capacity reverse osmosis desalination prototypes have been marketed. The RO unit used in this research produces 10–15 L/h of treated water with a recovery rate between 25 and 40% and salt rejection in the order of 90%. The salinity of the tested domestic water is between 0.4 and 1.4 g/L. Water pretreatment is composed of three filtration operations (cartridge filter, granulate active carbon filter, and 5 μm cartridge filter). Pretreated water is pumped through RO membrane with a maximum pressure of 6 bars. At the 4th year, the RO unit’s performance was substantially decreased. The recovery rate and salt rejection fall down about 50 and 100%, respectively, and the pressure drop increases from 1 to 2.1 bars. An autopsy of the used RO membrane was done by different analysis techniques such as SEM/EDX, AFM, XRD, and FTIR spectroscopy. The analysis of the membrane surface shows a 2 μm deposit film indicating a fouling phenomenon. The SEM photos show deterioration on the active layer of the membrane which seems to be attacked by the tap water chlorine. X-ray diffraction and FTIR show that the deposit collected on the used membrane contains organic and mineral (Gypsum, SiO2, and clays) materials. The desalinated water cost (TDS < 100 mg/L) is less than 0.02 US$/L. It is about one-seventh of the mineral waterprice. © 2013, © 2013 Balaban Desalination Publications. All rights reserved.


Al-Naseri S.K.,Water Research Center | Mahdi Z.M.,Water Research Center | Hashim M.F.,Water Research Center
Hemodialysis International | Year: 2013

Dialysis water quality is one of the important parameters all over the world because of its direct influence on the health of kidney patients. In Iraq, there are more than 20 dialysis centers; most of them contain identical units for the production of dialysis water. In this work, the quality of water used for dialysis in six dialysis centers located within Baghdad hospitals was evaluated. Samples of product water from each of the six dialysis centers were examined for total heterotrophic bacteria, endotoxin, and chemical contaminants. Endotoxin was measured on-site using a portable instrument. Bacteriological and chemical examinations were done in the laboratory after collecting samples from each dialysis center. The results showed a fluctuation in the produced water quality that makes the produced water unaccepted when compared with international standards. Bacterial counts for 60% of the analyzed samples were above the action level (50 colony-forming units[CFU]/mL), while five out of the six dialysis centers showed values higher than the maximum value (100 CFU/mL). Chemical analysis showed that the dialysis water quality suffers from elevated aluminum concentration for all dialysis centers. All hemodialysis centers need thorough monitoring and preventive maintenance to ensure good water quality. In addition, it is important to revise the design of the water treatment units according to the feed and product water quality. © 2013 International Society for Hemodialysis.


News Article | November 15, 2016
Site: www.businesswire.com

BOSTON--(BUSINESS WIRE)--Oasys Water today announced the completion of a highly successful ClearFlo MBCx system demonstration at the Water Research Center near Cartersville, Georgia.

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