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A and WMA Indoor environmental Quality: Problems, Research and Solutions Conference 2006

作者： Mora, Joel Astorga, Fernando Gamez, Jessica Parks, Norris J. Li, Wen-Whai Department of Civil Engineering University of Texas at El Paso El Paso TX Environmental Science and Engineering Program University of Texas at El Paso El Paso TX

ISBN: (纸本)092320475X

Continuous and integrated indoor-outdoor PM2.5 monitoring and sampling was accomplished at 8 residences in central U.S.-Mexico border region from February to April 2005. The objective was to characterize the chemical composition of indoor PM2.5 resulting from cooking activities in households preparing traditional Mexican dishes. We recorded dual indoor and outdoor 5-minute average PM2.5 mass concentrations and collected 3-hr and 21-hr samples for element and carbon analysis in each of the 8 residences. Two TEOMs, each equipped with an automatic cartridge collection unit (ACCU) system holding Teflon and quartz fiber filters, were employed for the indoor-outdoor PM characterization. PM2.5 peaked abruptly indoors while cooking was taking place;reaching 3,495 μg m-3. The 10-minute average PM2.5 in each home was observed to frequently exceed the 24-hr U.S. NAAQS for PM2.5 by a factor of 1 to 2 orders of magnitude. Elements representing geologic (Si, Ca, AI, Fe, K and Na) or anthropogenic origins (As, Cu, Cr, Pb and Sb) were detected both indoors and outdoors. The 24-hr indoor geologic element mass was moderately to highly correlated with that of the outdoors (R2 = 0.297-0.998). The 24-hr anthropogenic elements indoors and outdoors were observed to correlate in similar patterns (R2 = 0.264-0.982). The majority of the indoor PM2.5 peaks thus appeared to be carbons. The 24-hr indoor EC mass was highly correlated with that of the outdoors (R2 = 0.99) showing near null indoor/outdoor (I/O) variation, while the indoor OC was uncorrelated to the outdoor OC (R2 = 0.047). Indoor PM2.5 in this border region is apparently dominated by OC (88%) from cooking activities and by elements (11%) and EC (1%) from outdoors.

关键词： Particles (particulate matter)

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Effects of ferric hydroxide on methanogenesis from lipids and long-chain fatty acids in anaerobic digestion

Effects of ferric hydroxide on methanogenesis from lipids an...

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作者： Li, Zhengkai Wrenn, Brian A. Venosa, Albert D. Environmental Engineering Science Program Washington University St. Louis MO United States National Risk Management Research Laboratory U.S. Environmental Protection Agency Cincinnati OH United States Environmental Engineering Science Program Washington University Campus Box 1180 One Brookings Drive St. Louis MO 63130 United States

The addition of ferric hydroxide to sludge from a municipal anaerobic digester stimulated the rate of methanogenesis from canola oil when the initial oil concentration was high (4600 mg/L;P 0.05). Similar trends were observed when oleic acid, a fatty acid that is a major component of canola oil triglycerides, was provided, but the effects were statistically significant only when the initial concentration of ferric hydroxide was also high (18 g/L;P = 0.015). Iron reduction occurred when ferric hydroxide was added to microcosms containing anaerobic digester sludge, but the extent of ferrous iron production was much less in acetate-amended microcosms than in those that were provided with canola oil or oleic acid. Methanogenesis and acetate consumption were completely inhibited when the initial acetate concentration was approximately 5000 mg/L, regardless of the initial ferric hydroxide concentration. The main effect of ferric hydroxide in this system appears to have been a result of stimulation of the rate of fatty acid oxidation.

关键词： Anaerobic digestion

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engineering education and the global economy: The search for policy

Engineering education and the global economy: The search for...

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113th Annual ASEE Conference and Exposition, 2006

作者： Devon, Richard Kisenwether, Elizabeth Schuhmann, Richard Pangborn, Robert Barron, Kim Pennsylvania State University United States Department of Engineering Design Engineering Design Program School for Engineering Design Technology United States Engineering Entrepreneurship Program Engineering Leadership Program United States Department of Civil and Environmental Engineering Undergraduate Studies and International Programs College of Engineering Department of Material Science Industrial Engineering at Penn State United States

engineering education in the United States is confronted with some new realities, both real and perceived. engineering is increasingly a globally distributed, cooperative activity and the US outsourcing of research, design, manufacturing, and construction overseas is growing. Further, the production of engineers in the United States is falling to around 5-6% of the global supply with clear signs that engineering education is available at lower costs, often far lower, in other countries. Many have viewed this globalization as a competitive situation for engineering education in the United States that we are losing. We will present the view that in terms of the quality of engineering education (which engineering educators can influence) as opposed to the global economy (about which we can do little), engineering education is still very strong in the US and likely to remain that way. However, we will present some recommendations based on our professional responsibilities in running programs in entrepreneurship, leadership, and design. In particular, we will review survey data collected from Penn State engineering graduates over the last decade which helps define new paths for integrating entrepreneurship, leadership and design into the engineering curriculum. We believe that there are some very real ways in which engineering education can, and should be, responding to the new requirements for success in professional engineering careers that derive from national needs as well as from the globalization of engineering. © American Society for engineering Education, 2006.

关键词： engineering education

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Arsenic Tolerance in Mesquite (Prosopis sp.):Low Molecular Weight Thiols Synthesis and Glutathione Activity in Response to As(Ⅲ)and(Ⅴ)

Arsenic Tolerance in Mesquite (Prosopis sp.):Low Molecular W...

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第35届国际光谱会议(The Colloquium Spectroscopicum Internationale XXXV)

作者： N.S.Mokgalaka-Matlala E.Flores-Tavizón H.Castillo-Miche J.R.Peralta-Videa J.L.Gardea-Torresdey R.I.Mc Crindle Department of Chemistry University of Texas at El Paso Department of Chemistry University of Texas at El Paso Department of Chemistry University of Texas at El Paso Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa Environmental Science and Engineering PhD Program 500W University Ave. El Paso TX 79968-0513 USA Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa

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Synthesis of monolithic titania-silica aerogel for PCO reactions

Synthesis of monolithic titania-silica aerogel for PCO react...

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作者： Cao, S. Yeung, K.L. Yue, P.L. Environmental Engineering Program Department of Chemical Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Department of Chemical Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

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Zeolite micropattern on biological application

Zeolite micropattern on biological application

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2006 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2006 Technical Proceedings

作者： Wong, L.W. Sun, W. Lam, K.F. Yeung, K.L. Bioengineering Graduate Program Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong Department of Chemical Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloong Hong Kong Department of Chemical Engineering Environmental Engineering Program Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

ISBN: (纸本)0976798565

Zeolite micropattern created from structurally similar hydrophobic Sil-1 and hydrophilic ZSM-5 zeolites, and tested for the immobilization of fluorescein isothiocyanate conjugate bovine serum albumin (BSA-FITC), biotin conjugate bovine serum albumin (Biotin-BSA), Hochest 33342 and rhodamine conjugate α- bungatoxin, were preferentially deposited onto hydrophobic ZSM-5 patterns regardless of the pattern geometry. Being inorganic, the zeolite micropattern does not deteriorate with time and can be readily reused by simply burning away the deposited chemicals and biomolecules. This suggests that compositional micropattern of zeolite could be used to create high resolution array of biomolecules on flat substrate.

关键词： Zeolites

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Arsenic Tolerance in Mesquite (Prosopis sp.):Low Molecular Weight Thiols Synthesis and Glutathione Activity in Response to As(Ⅲ) and (Ⅴ)

Arsenic Tolerance in Mesquite (Prosopis sp.):Low Molecular W...

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第三十五届国际光谱会议

作者： N.S.Mokgalaka-Matlala E.Flores-Tavizón H.Castillo-Miche J.R.Peralta-Videa J.L.Gardea-Torresdey R.I.Mc Crindle Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa Department of Chemistry University of Texas at El Paso Department of Chemistry University of Texas at El Paso Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa Department of Chemistry University of Texas at El Paso Environmental Science and Engineering PhD Program 500W University Ave. El Paso TX 79968-0513 USA Department of Chemistry University of Texas at El Paso Department of Chemistry University of Texas at El Paso Tshwane University of Technology Department of Chemistry Arcadia Campus Private Bag X680 Pretoria 0001 South Africa

This study reports the tolerance of arsenic induced-stress by mesquite (Prosopis sp.) *** response of mesquite towards the toxicity effects imposed by As were studied through evaluation of plant growth,nutrients content,synthesis of acid-soluble low molecular weight thiols (LMWTs) and glutathione S-transferase (GST) *** seeds of mesquite were germinated and grown in a hydroponics *** 3 days of growth in a nutrient solution,the plants were transferred to nutrient solution

关键词： Activity Arsenic Tolerance in Mesquite Low Molecular Weight Thiols Synthesis and Glutathione Activity in Response to As Prosopis sp

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Design and prototype development of advanced oxidation black and gray water treatment systems

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NAVAL ENGINEERS JOURNAL 2006年第3期118卷 51-64页

作者： Markle, Stephen P. CDR. STEPHEN P. MARKLE USN (REt.)P.E.a retired US Navy Engineering Duty Officer and is the Engineering Director for Navalis Environmental Systems. His active duty assignments included the staff of the Chief of Naval Operations Director of Surface Warfare as Section Head for Surface Combatant Maintenance and Modernization Program Executive Office Expeditionary Warfare as Assistant Project Manager for the (TAKE 1)Class Program and as Deputy Director Environmental Programs Division at Naval Sea Systems Command. He is a 1993 graduate of the Naval Construction and Engineering Program at the Massachusetts Institute of Technology where he received a Naval Engineers Degree and Master of Science in Mechanical Engineering. Since 1995 he has authored thirteen published technical papers dealing with environmental issues. CDR Markle is the recipient of Fiscal Year 2001 Individual Environmental Quality Awards and Environmental Excellence in Weapon System Acquisition Team Awards from Naval Sea Systems Command Chief of Naval Operations Secretary of the Navy and Secretary of Defense and the 2001 ASNE “Jimmie Hamilton” award. He is a Professional Engineer registered in the State of New York and Commonwealth of Virginia. He serves as the Chair of the Joint ASNE/SNAME Committee on Environmental Engineering and also as Chair of ASTM Ships and Marine Technology Marine Environmental Protection Subcommittee (F25.06).

Regulations governing the discharge of sewage from ships have been in force since the early 1970's. In response, the marine industry has developed ever more complex systems and processes for managing these wastes. The first compliance method involved holding wastes until they could be legally discharged;as technology advanced, treatment systems were developed and installed to enable discharge within regulated waters. As the size and number of ships as increased with maturation of the ocean tourism business, more restrictive regulations have been enacted to minimize the impact on sensitive waters. The trend is toward increasing regulation of both sewage and graywater. The most recent action occurred on 12 October 2005 when the Governor of California signed into law Senate Bill 771 regulating most ship liquid discharges within state waters. This paper describes the development of an innovative advanced wastewater treatment technology, based on advanced oxidation, bearing in mind the lessons learned from systems developed by industry over the past thirty years.

关键词： Wastewater treatment

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NANOOS-Pilot: A collection of ocean observing tools for improving ocean safety and coastal design

NANOOS-Pilot: A collection of ocean observing tools for impr...

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113th Annual ASEE Conference and Exposition, 2006

作者： Haller, Merrick Baptista, Antonio Oregon State University United States Ocean Engineering Program Department of Civil and Construction Engineering Oregon State University United States Oregon Health and Science University United States Center for Coastal and Land-Margin Research Department of Environmental Science and Engineering Oregon Graduate Institute United States

The NANOOS-Pilot project (Northwest Association of Networked Ocean Observing Systems) is an ongoing effort to develop coastal ocean observing assets for the integrated observation of the estuaries and shorelines of the Pacific Northwest. The project is actively building nowcast and predictive capabilities for this environment, as well as interactive access to archival data, real-time data, and selected forecasts. In addition to the potential benefits accrued to the many sectors that depend upon the coastal waters of the Pacific Northwest, there are a number of education opportunities related to ocean observatories involving undergraduate and graduate institutions, K-12 schools and adult literacy programs. In this work, we describe some ocean technology applications of the NANOOS-Pilot and focus on the educational use of the system in a senior-level Civil engineering course on Coastal Infrastructure. © American Society for engineering Education, 2006.

关键词： Ocean engineering

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Workshop on imaging science development for cancer prevention and preemption

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Cancer Biomarkers 2007年第1期3卷 1-33页

作者： Kelloff, Gary J. Sullivan, Daniel C. Baker, Houston Clarke, Lawrence P. Nordstrom, Robert Tatum, James L. Dorfman, Gary S. Jacobs, Paula Berg, Christine D. Pomper, Martin G. Birrer, Michael J. Tempero, Margaret Higley, Howard R. Petty, Brenda Gumbs Sigman, Caroline C. Maley, Carlo Sharma, Prateek Wax, Adam Ginsberg, Gregory G. Dannenberg, Andrew J. Hawk, Ernest T. Messing, Edward M. Grossman, H. Barton Harisinghani, Mukesh Bigio, Irving J. Griebel, Donna Henson, Donald E. Fabian, Carol J. Ferrara, Katherine Fantini, Sergio Schnall, Mitchell D. Zujewski, Jo Anne Hayes, Wendy Klein, Eric A. DeMarzo, Angelo Ocak, Iclal Ketterling, Jeffrey A. Tempany, Clare Shtern, Faina Parnes, Howard L. Gomez, Jorge Srivastava, Sudhir Szabo, Eva Lam, Stephen Seibel, Eric J. Massion, Pierre McLennan, Geoffrey Cleary, Kevin Suh, Robert Burt, Randall W. Pfeiffer, Ruth M. Hoffman, John M. Roy, Hemant K. Wang, Thomas Limburg, Paul J. El-Deiry, Wafik S. Papadimitrakopoulou, Vali Hittelman, Walter N. MacAulay, Calum Veltri, Robert W. Solomonzz, Diane Jeronimo, Jose Richards-Kortum, Rebecca Johnson, Karen A. Viner, Jaye L. Stratton, Steven P. Rajadhyaksha, Milind Dhawan, Atam NIH/NCI/DCTD Cancer Imaging Program Bethesda MD United States NIH/NCI/DCTD Cancer Imaging Program NCI-Frederick Frederick MD United States NIH/NCI/DCP Early Detection Research Group Bethesda MD United States The Johns Hopkins University School of Medicine Departments of Radiology Pharmacology and Oncology Division of Neuroradiology Baltimore MD United States NIH/NCI/CCR Cell and Cancer Biology Branch Bethesda MD United States University of California San Francisco Department of Medicine Division of Medical Oncology San Francisco CA United States CCS Associates Inc. Mountain View CA United States Wistar Institute Molecular and Cellular Oncogenesis Program Philadelphia PA United States University of Kansas School of Medicine VA Hospital Kansas City MO United States Duke University Department of Biomedical Engineering Medical Physics Program Durham NC United States University of Pennsylvania School of Medicine Department of Gastroenterology Philadelphia PA United States New York Presbyterian Hospital Weill Medical College of Cornell University New York NY United States NIH/NCI/OD Office of Centers for Training and Resources Bethesda MD United States University of Rochester Medical Center Department of Urology Rochester NY United States University of Texas MD Anderson Cancer Center Department of Urology Houston TX United States Massachusetts General Hospital Abdominal Imaging/Interventional Radiology Boston MA United States Boston University Biomedical Engineering Electrical and Computer Engineering and Physics Boston MA United States NIH/NCI/DCP Gastrointestinal and Other Cancers Research Group Bethesda MD United States The George Washington University Cancer Institute Office of Cancer Prevention and Control Washington DC United States University of Kansas Cancer Center Clinical Oncology Kansas City KS United States University of California Davis Department of Biomedical Engineering Davis CA United States Tufts University De

The concept of intraepithelial neoplasm (IEN) as a near-obligate precursor of cancers has generated opportunities to examine drug or device intervention strategies that may reverse or retard the sometimes lengthy process of carcinogenesis. Chemopreventive agents with high therapeutic indices, well-monitored for efficacy and safety, are greatly needed, as is development of less invasive or minimally disruptive visualization and assessment methods to safely screen nominally healthy but at-risk patients, often for extended periods of time and at repeated intervals. Imaging devices, alone or in combination with anticancer drugs, may also provide novel interventions to treat or prevent precancer.

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