Physical Sciences and Mathematics Commons^™

Green Roofs For A Green Town: Possibilities Of Green Roof Implementation In The Town Of Normal, Lindsey Sihau, '09

Outstanding Senior Seminar Papers

Green roofs have been growing in popularity throughout the world. Scientists have been studying them since the 1980’s. This research project reviews the literature regarding both the benefits and barriers to green roof construction and management. Policies around the nation are then examined and analyzed. Suggestions are made regarding possible additions to the local Stormwater Management Policy that would emphasize the importance of sustainable building techniques such as green roofs, and hopefully offer incentive to their implementation.

Ocena Wpływu Arcelormittal Poland S.A. Oddział W Krakowie Na Jakość Powietrza, Marian Mazur, Robert Oleniacz, Marek Bogacki, Przemysław Szczygłowski

Robert Oleniacz

The work presents selected results of atmospheric dispersion modeling and air quality impact assessment for pollutant emissions from installations of ArcelorMittal Poland S.A. Unit in Krakow (Poland). The assessment was carried out for the most unfavourable emission variant probable to take place in the period 2007-2016. In the calculations were taken into consideration typical for steelworks particle matter pollutants (total dust, heavy metals, tar substances and PAHs including benzo-a-piren) and gaseous substances (SO2, NO2, CO, HC, HCl, HF, NH3, HCN, H2S, CS2, H2SO4, BTX, phenol and pyridine). As the result of estimations, carried out according to the Polish reference method …

Ocena Wielkości Emisji Do Powietrza Z Arcelormittal Poland S.A. Oddział W Krakowie W Odniesieniu Do Standardów Unii Europejskiej, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

The work presents emission factors of main air pollutants for installations of ArcelorMittal Poland S.A. Unit in Krakow (Poland) in comparison with analogous characteristic emissions for iron and steel industry in West Europe. In the comparison four installations (to coke, sinter, pig iron and steel production) were taken into consideration. The emission rates from ArcelorMittal Poland S.A. Unit in Krakow were estimated on the basis of the emission levels and production data from 2004, when took place the most significant production of liquid steel during last several years. As a result of the analysis, most the emission factors (with the …

European Climate Policy And The Position Of Cyprus, Theodoros Zachariadis

Theodoros Zachariadis

No abstract provided.

Strategic Approaches For Management Of Risk In Geomechanics, R. Chowdhury, P. Flentje

Faculty of Engineering - Papers (Archive)

This paper outlines the challenges facing geomechanics and advocates some strategies for dealing with these challenges. Advancement of geomechanics and its application in the past may be seen in a historical context as serving the needs of society such as the development of infrastructure and natural resources. The needs of society are changing rapidly due to population growth, increasing urbanisation and globalisation. Climate change poses specially challenges, the impacts increasing with time. Therefore, development of new strategies is essential. For example, greater attention should be given to the development of interdisciplinary approaches. It is vitally important that systematic methods be …

A Method For Computing Infiltration And Redistribution In A Discretized Moisture Content Domain, Fred L. Ogden

Fred L. Ogden

A new one-dimensional infiltration and redistribution method is proposed as an alternative to the Richards equation (RE) for coupled surface and subsurface models. The proposed method discretizes soil water content into hypothetical hydraulically interacting bins. The entry and propagation of displacement fronts in each bin are simulated by means of explicit infiltration and drainage approximations based on capillary and gravitational driving forces. Wetting front advances within bins create water deficits that are satisfied by capillary-driven interbin flow. The method inherently provides numerical stability by precluding the need to directly estimate nonlinear gradients through numerical schemes. Comparisons of the performance of …

Nebraska Water Map

Literature from The Nebraska Water Center

Nebraska Water is a full-color, 24"x36" poster, that is appropriate for educational use. The information presented on the maps is the best available as of July 2008. The content and level of detail of each map is based on available space and map scale.

Fuel Taxation And Social Policy, Theodoros Zachariadis

Theodoros Zachariadis

No abstract provided.

Świadomość Społeczna Z Zakresu Niekontrolowanego Spalania Odpadów I Problemu Dioksyn, Robert Oleniacz, Anna Tomkowicz

Robert Oleniacz

The paper presents the problem of uncontrolled waste combustion in a rural community (Municipality Krościenko Wyżne, South-East Poland) and social awareness concerning the formation of dioxins using the results of the survey. In the questionnaire studies both combustion of wastes in household stoves was included as well as on the open space. The results of the survey showed a large scale of waste burning and low public awareness of inhabitants of the Polish village.

English title: Public awareness in the field of uncontrolled waste combustion and the problem of dioxins.

College Of Engineering Senior Design Competition Spring 2008, University Of Nevada, Las Vegas

Fred and Harriet Cox Senior Design Competition Projects

Part of every UNLV engineering student’s academic experience, the senior design project stimulates engineering innovation and entrepreneurship. Each student in their senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. A capstone to the student’s educational career, the senior design project encourages the student to use everything learned in the engineering program to create a practical, real world solution to an engineering challenge.

The senior design competition helps to focus the senior students in increasing the quality and potential for commercial application for their design projects. Judges from local industry evaluate the projects …

Brunswick Me: De-Militarizing The Bnas, Anne Holland, Brett Richardson, Richard Barringer

Planning

Closure of the Brunswick Naval Air Station in 2011 will have profound economic impacts on the entire mid-coast Maine region of Maine, with an estimated loss of 6,500 jobs and $330 million annual income. Throughout the Base Realignment and Closure process, Brunswick, the region, and the State of Maine followed federal rules and developed the federally-funded Brunswick Local Redevelopment Authority (BLRA) to plan for reuse of the 3300 acre base. In its planning process, the BLRA adhered to a number of well thought-out Guiding Principles, including the use of extensive public participation and the consideration of “smart growth” principles and …

Algorithm Development Of The Aglite-Lidar Instrument, Christian Marchant

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Particulate emissions from agricultural operations are increasingly receiving attention from regulatory bodies as a potential source of air pollution. The Space Dynamics Laboratory (SDL) has developed the Aglite system, a suite of instruments including a lidar that is capable of measuring particulate emission levels from agricultural facilities. This system provides a novel method of measuring particulate mass (PM) pollution, allowing measurements to be taken of diverse types of facilities with high temporal and spatial resolution. This high resolution allows for the measurement of emission levels generated by specific activities, fostering the development and determination of best management practices.

The Aglite …

Developing Subgrade Inputs For Mechanistic-Empirical Pavement Design, Meagan Berlau

Computer Science and Computer Engineering Undergraduate Honors Theses

No abstract provided.

Sustainable Portland: Implementation Series 1, New England Environmental Finance Center

Climate Change

When the Sustainable Portland Task Force Report was released in November 2007, under the leadership of Mayor Jim Cohen, Portland Councilor Kevin Donoghue had the idea that students at the Muskie School of Public Service might be able to help implement recommendations from the report. It may have helped that Kevin was himself a graduate of the Community Planning and Development Master’s program at the Muskie School, but it was a good idea nevertheless. He approached Professor Sam Merrill in the CPD program, who spoke with the new Mayor Ed Suslovic about a possible partnership between the City and the …

Parallel Mpi/Fortran Finite Element Symmetrical/Unsymmetrical Domain Decomposition, Siroj Tungkatara

Civil & Environmental Engineering Theses & Dissertations

MPI/FORTRAN finite element analysis software based on Domain Decomposition (DD) formulas has been developed in this work. Efficient input data storage/data communication schemes, domain partitioning, fast symbolical and numerical sparse assembly, symmetrical/unsymmetrical sparse solver and robust symmetrical/unsymmetrical iterative solvers algorithms are all incorporated into the developed code. Parallel Precondition Conjugated Gradient (PCG) and Flexible Generalized Minimum Residual (FGMRES) are developed. Efficient computational techniques used in the developed code are explained. Numerical performance and the accuracy of the developed code are conducted on acoustic examples with medium to large grid sizes. The results obtained from ODU Wilbur cluster (under parallel processing …

Proceedings From Scientific Conference On Green Energy And It, Dr. Erik Dahlquist

Dr. Erik Dahlquist

This conference is part of the annual Energitinget, a national arena for energy in Sweden, with some 2500 participants. The focus with this session is to give a forum for researchers to present scientific results, and also to discuss these with other researchers. It contains papers in the area of Energy and IT as well as Green energy generally

Air Pollutant Emissions From Process Of Mixing Materials Used For Manufacturing Small Products From Carbon And Graphite, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski

Robert Oleniacz

The paper characterises the method of preparing the HCC and Rubba-type materials used to manufacture small carbon and graphite products, and the composition of waste gases escaping from the mixers for these materials. For the process of mixing the two materials under examination, two measurement series were completed, mainly covering the period from when the binder was added to the properly pre-heated dry mass until the mixer discharged. The results shown apply only to those substances which occur just in the gaseous phase, that is CO, CO2, O2, H2, aliphatic hydrocarbons (C1-C6) and BTX (benzene, toluene, ethylbenzene and xylene) as …

Badania Zawartości Substancji Gazowych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski

Robert Oleniacz

The paper characterises the method of preparing the HCC and Rubba-type materials used to manufacture small carbon and graphite products, and the composition of waste gases escaping from the mixers for these materials. For the process of mixing the two materials under examination, two measurement series were completed, mainly covering the period from when the binder was added to the properly pre-heated dry mass until the mixer discharged. The results shown apply only to those substances which occur just in the gaseous phase, that is CO, CO2, O2, H2, aliphatic hydrocarbons (C1-C6) and BTX (benzene, toluene, ethylbenzene and xylene). Due …

Badania Zawartości Pyłu Ogółem I Węglowodorów Wyższych W Gazach Odprowadzanych Z Procesu Przygotowania Tworzyw Do Produkcji Drobnych Wyrobów Węglowych I Grafitowych, Marian Mazur, Marek Bogacki, Robert Oleniacz, Przemysław Szczygłowski

Robert Oleniacz

The paper presents the results of measurements of concentrations of dust substances in flue gases from the mixing process of two type od raw materials (HCC and Rubba) used in the manufacture of fine carbon and graphite products. These raw materials differed in the method of preparation including the heating temperature in various stages of mixing and duration of the process. Due to the use in the mixing process liquid binders, significant amounts of tar substances in liquid and solid phase were discharged from the mixers. In the analyzed flue gases was determined total dust content of tar substances, polycyclic …

Ocena Skuteczności Działania Suchego Systemu Oczyszczania Spalin Ze Spalania Odpadów Medycznych Opartego Na Wtrysku Sorbentu Wapniowo-Węglowego, Robert Oleniacz

Robert Oleniacz

The research object was a medical waste incineration plant with a capacity of 150 kg per hour equipped with a flue gas treatment system based on dry sorption process using a lime-carbon reagent with adsorbent removing in high-efficiency particulate collector. As the dry sorption agent was used a mixture of high reactive hydrated lime and activated carbon injected to combustion gases by pneumatic feeder. Activated carbon content in the mixture was 5-10 % by mass. Applied collector was ceramic filter with total filtration area of 120 m2 and guaranteed outlet dust concentration under 5 mg/Nm3. Among others things the aims …

Bench-Scale Disinfection Of Bacteria And Viruses With Pulsed Arc Electrohydraulic Discharge, L H. Lee, A J. Arnold, C A. Santillan, M B. Emelko, Sarah E. Dickson, J. -S Chang

Sarah E Dickson

Pulsed arc electrohydraulic discharge (PAED) offers concurrent treatment of chemical and microbial target compounds in water by several mechanisms. Here, Escherichia coli, Bacillus subtilis spore, and MS2 bacteriophage inactivation by PAED were investigated using two bench-scale reactors (0.7 and 3 L). A plasma channel was created between a pair of iron electrodes set 0.5 mm apart in these reactors. Pulsed applied voltage was supplied at approximately 0.3 kJ/pulse (~100 ìsec). In the 0.7-L reactor, median E. coli, B. subtilis, and MS2 reductions of 2.4-, 4.6-, and 3.7-log, respectively, were observed after approximately 80 seconds of treatment in water with a …

Expansion Of The Discontinuous Gas Phase And Its Effect On Mass Flux From A Non-Aqueous Phase Liquid (Napl) Pool, Kevin G. Mumford, James E. Smith, Sarah E. Dickson

Sarah E Dickson

The partitioning of non-aqueous phase liquid (NAPL) compounds to a discontinuous gas phase results in the repeated spontaneous expansion, snap-off, and vertical mobilization of the gas phase. This mechanism has the potential to significantly affect the mass transfer processes that control the dissolution of NAPL pools by increasing the vertical transport of NAPL mass and increasing the total mass transfer rate from the surface of the pool. The extent to which this mechanism affects mass transfer from a NAPL pool depends on the rate of expansion and the mass of NAPL compound in the gas phase. This study used well-controlled …

On The Appropriate “Equivalent Aperture” For The Description Of Solute Transport In Single Fractures: Laboratory-Scale Experiments, Qinghuai Zheng, Sarah E. Dickson, Yiping Guo

Sarah E Dickson

Three distinct definitions of ‘‘equivalent aperture’’ have been used in the literature to describe variable-aperture fractures; however, significant inconsistencies exist in the literature as to which ‘‘equivalent aperture’’ is appropriate for simulating solute transport. In this work, a systematic series of hydraulic and tracer tests was conducted on three laboratory-scale fracture replicas, and the cubic law, mass balance, and frictional loss apertures were calculated. The analytical solution of the one-dimensional advectiondispersion equation was fit to the experimental breakthrough curves. Additionally, one of the experimental aperture fields was measured directly using a light transmission technique. The results clearly demonstrate that the …

Slow Gas Expansion In Saturated Natural Porous Media By Gas Injection And Partitioning With Non-Aqueous Phase Liquids, Kevin G. Mumford, Sarah E. Dickson, James E. Smith

Sarah E Dickson

The partitioning of volatile non-aqueous phase liquid (NAPL) compounds to a discontinuous gas phase can result in the expansion of that gas phase, and the resulting gas flow can significantly affect the mass transfer from NAPL source zones. This recently reported gas flow generated by the spontaneous expansion of a discontinuous gas phase has not been extensively characterized in the literature. This study measured the expansion rate of a single gas cluster in a 1.1 mm sand above a pool of trans-1,2-dichloroethene (tDCE) in small-scale flow cell experiments. To characterize the gas flow, gas injection experiments in three sizes of …

Spontaneous Expansion And Mobilization Of Gas Above Dnapl, Kevin G. Mumford

Sarah E Dickson

No abstract provided.

Use Of Modeling And Simulation In Pulp And, Dr. Erik Dahlquist

Dr. Erik Dahlquist

The book is a handbook for operators and process engineers in primarily pulp and paper industry, but also other process industries about how to utilise simulation as a tool for enhanced process operations. The book has been written as part of a EU COST action on Process Simulation, with 14 countries and 50 researchers and process industry representatives involved.

The History Of The Unl Water Center From 1964, Water Center, School Of Natural Resources

Literature from The Nebraska Water Center

Water is an integral part of Nebraska’s economy and well being in a state that depends on an adequate supply for all uses, including agricultural, municipal, industrial, recreational and wildlife habitat.

Nebraska is fortunate with regard to its water supply, having tremendous groundwater reserves which are estimated to be in excess of two billion acrefeet (an acre-foot being enough water to cover one acre of land with a foot of water, or approximately 325,000 gallons), combined with an estimated annual precipitation of 86 million acre-feet and annual average surface water inflows of 1.7 million acre-feet, give the state adequate supplies …

Screening The Phytoremediation Potential Of Native Plants Growing On Mine Tailings In Arizona, Usa, Md Nazmul Haque

Open Access Theses & Dissertations

Mining companies have been playing an important role for the utilization of the Earth's natural resources for the prosperity of human society. However, the mining of resources has generated solid wastes called tailings that have become a serious environmental threat worldwide. Technologies such as soil caping have been used to remediate the problem. Nevertheless, the remediation of mine tailings using conventional technologies is costly and environmentally unpleasant. Since the last few decades, a plant based technology known as phytoremediation has appeared as a promising alternative. Several plant species have demonstrated to have phytoremediation capabilities; though, best results have been obtained …

New Particle Formation In The Front Range Of The Colorado Rocky Mountains, Micahel Boy, Thomas Karl, Andrew Turnipseed, Roy Lee Mauldin, Edward Kosciuch, James Greenberg, Jeff Rathbone, James Smith, Andreas Held, Kelley Barsanti, Alex Guenther

Civil and Environmental Engineering Faculty Publications and Presentations

New particle formation is of interest because of its influence on the properties of aerosol population, and due to the possible contribution of newly formed particles to cloud condensation nuclei. Currently no conclusive evidence exists as to the mechanism or mechanisms of nucleation and subsequent particle growth. However, nucleation rates exhibit a clear dependence on ambient sulphuric acid concentrations and particle growth is often attributed to the condensation of organic vapours. A detailed study of new particle formation in the Front Range of the Colorado Rocky Mountains is presented here. Gas and particle measurement data for 32 days was analyzed …

An Evaluation Of Norovirus Persistence In Estuarine Water And Of Methods For Its Detection In Treated Sewage Effluent, Margaret H. Fagan

Dissertations, Theses, and Masters Projects

No abstract provided.