Academic literature on the topic 'Mass balance analysis'

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Journal articles on the topic "Mass balance analysis"

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Thuy, Pham Thi, Pham Thanh Tuan, and Nguyen Manh Khai. "Industrial Water Mass Balance Analysis." International Journal of Environmental Science and Development 7, no. 3 (2016): 216–20. http://dx.doi.org/10.7763/ijesd.2016.v7.771.

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Kenway, Steven, Alan Gregory, and Joseph McMahon. "Urban Water Mass Balance Analysis." Journal of Industrial Ecology 15, no. 5 (August 18, 2011): 693–706. http://dx.doi.org/10.1111/j.1530-9290.2011.00357.x.

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Huss, M. "Mass balance of Pizolgletscher." Geographica Helvetica 65, no. 2 (June 30, 2010): 80–91. http://dx.doi.org/10.5194/gh-65-80-2010.

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Abstract. Half of the glaciers in the Swiss Alps are smaller than 0.1 km2. Despite this, the mass budget of small glaciers and their response to ongoing climate change is rarely studied. A new mass balance monitoring programme on Pizolgletscher (0.08 km2) in north-eastern Switzerland was started in 2006. This paper presents first results and describes a new approach to determining the mass balance of glaciers. Seasonal field observations are interpreted using a distributed mass balance model in daily resolution that allows spatial inter- and extrapolation of sparse data points and the calculation of mass balance over arbitrary time periods. Evaluation of aerial photographs acquired in subdecadal intervals since 1968 allows inclusion of data on changes in glacier area and ice volume, contributing towards a long-term reconstruction of Pizolgletscher's mass balance. The analysis revealed fast mass loss over the last three years with annual balances of -1.61 m w.e. in 2006/2007, -0.71 m w.e. in 2007/2008, and -1.46 m w.e. in 2008/2009 and high spatial variability of mass balance on Pizolgletscher.
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Liu, Zhenling, Zhongping Xiao, Sayaka Masuko, Wenjing Zhao, Eric Sterner, Vinod Bansal, Jawed Fareed, Jonathan Dordick, Fuming Zhang, and Robert J. Linhardt. "Mass balance analysis of contaminated heparin product." Analytical Biochemistry 408, no. 1 (January 2011): 147–56. http://dx.doi.org/10.1016/j.ab.2010.09.015.

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Barlaz, Morton A., Robert K. Ham, and Daniel M. Schaefer. "Mass‐Balance Analysis of Anaerobically Decomposed Refuse." Journal of Environmental Engineering 115, no. 6 (December 1989): 1088–102. http://dx.doi.org/10.1061/(asce)0733-9372(1989)115:6(1088).

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Graham Cogley, J. "Geodetic and direct mass-balance measurements: comparison and joint analysis." Annals of Glaciology 50, no. 50 (2009): 96–100. http://dx.doi.org/10.3189/172756409787769744.

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AbstractThis paper describes a new compilation of both direct and geodetic mass-balance measurements, develops a procedure to reduce diverse balance measurements over different time-spans to common time-spans, and presents updated estimates of global average balance of small glaciers based on the enlarged compilation. Although geodetic measurements are fewer than direct measurements, they cover four times as many balance years. Direct and geodetic measurements are unbiased with respect to one another, but differences are often substantial. The statistical procedure can be understood by imagining that an n-year balance measurement is an average of a series of 1 year measurements. The series is hypothetical but we can calculate the uncertainty of each of its elements if, in addition to its measured average, we can also estimate its standard deviation. For this claim to be valid, the annual series must be stationary and normally distributed with independent (roughly, uncorrelated) elements, for which there is reasonable evidence. The need to know the standard deviation means that annual direct measurements from a nearby glacier, or equally reliable information about variability, are indispensable. Given this information, the new methodology results in moderately more negative balances. This is probably because tidewater glaciers are better represented in the geodetic data. In any case, the most recent published estimate of global average balance, 0.8–1.0mma–1 of sea-level equivalent for 2001–04, is now increased substantially to 1.1–1.4 mma–1 for 2001–05.
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Hock, Regine, Valentina Radić, and Mattias De Woul. "Climate sensitivity of Storglaciären, Sweden: an intercomparison of mass-balance models using ERA-40 re-analysis and regional climate model data." Annals of Glaciology 46 (2007): 342–48. http://dx.doi.org/10.3189/172756407782871503.

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AbstractEstimates of glacier contributions to future sea-level rise are often computed from mass-balance sensitivities derived for a set of representative glaciers. Our purpose is to investigate how mass-balance projections and sensitivities vary when using different approaches to compute the glacier mass balance. We choose Storglaciären, Sweden, as a test site and apply five different models including temperature-index and energy-balance approaches further varying in spatial discretization. The models are calibrated using daily European Centre for Medium-Range Weather Forecasts re-analysis (ERA-40) data. We compute static mass-balance sensitivities and cumulative mass balances until 2100 based on daily temperatures predicted by a regional climate model. Net mass-balance sensitivities to a +1 K perturbation and a 10% increase in precipitation spanned from –0.41 to –0.61 and from 0.19 to 0.22ma–1, respectively. The cumulative mass balance for the period 2002–2100 in response to the climate-model predicted temperature changes varied between –81 and –92m for four models, but was –121m for the fully distributed detailed energy-balance model. This indicates that mass losses may be underestimated if temperature-index methods are used instead of detailed energy-balance approaches that account for the effects of temperature changes on all energy-balance components individually. Our results suggest that future glacier predictions are sensitive to the choice of the mass-balance model broadening the spectrum in uncertainties.
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Machguth, Horst, Wilfried Haeberli, and Frank Paul. "Mass-balance parameters derived from a synthetic network of mass-balance glaciers." Journal of Glaciology 58, no. 211 (2012): 965–79. http://dx.doi.org/10.3189/2012jog11j223.

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AbstractGlacier mass-balance parameters such as the equilibrium-line altitude (ELA) play an important role when working with large glacier samples. While the number of observational mass-balance series to derive such parameters is limited, more and more modeled data are becoming available.Here we explore the possibilities of analyzing such 'synthetic' mass-balance data with respect to mass-balance parameters. A simplified energy-balance model is driven by bias-corrected regional climate model output to model mass-balance distributions for 94 glaciers in the Swiss Alps over 15 years. The modeling results in realistic interannual variability and mean cumulative mass balance. Subsequently model output is analyzed with respect to 18 topographic and mass-balance parameters and a correlation analysis is performed. Well-known correlations such as for ELA and median elevation are confirmed from the synthetic data. Furthermore, previously unreported parameter relationships are found such as a correlation of the balance rate at the tongue with the accumulation-area ratio (AAR) and of the glacier elevation range with the AAR. Analyzing modeled data complements in situ observations and highlights their importance: the small number of accurate mass-balance observations available for validation is a major challenge for the presented approach.
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Yoon, Chun G., Jong-Hwa Ham, and Ji-Hong Jeon. "Mass balance analysis in Korean paddy rice culture." Paddy and Water Environment 1, no. 2 (July 1, 2003): 99–106. http://dx.doi.org/10.1007/s10333-003-0018-z.

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Zou, Fang, Robert Tenzer, Hok Fok, and Janet Nichol. "Mass Balance of the Greenland Ice Sheet from GRACE and Surface Mass Balance Modelling." Water 12, no. 7 (June 28, 2020): 1847. http://dx.doi.org/10.3390/w12071847.

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The Greenland Ice Sheet (GrIS) is losing mass at a rate that represents a major contribution to global sea-level rise in recent decades. In this study, we use the Gravity Recovery and Climate Experiment (GRACE) data to retrieve the time series variations of the GrIS from April 2002 to June 2017. We also estimate the mass balance from the RACMO2.3 and ice discharge data in order to obtain a comparative analysis and cross-validation. A detailed analysis of long-term trend and seasonal and inter-annual changes in the GrIS is implemented by GRACE and surface mass balance (SMB) modeling. The results indicate a decrease of −267.77 ± 8.68 Gt/yr of the GrIS over the 16-year period. There is a rapid decline from 2002 to 2008, which accelerated from 2009 to 2012 before declining relatively slowly from 2013 to 2017. The mass change inland is significantly smaller than that detected along coastal regions, especially in the southeastern, southwestern, and northwestern regions. The mass balance estimates from GRACE and SMB minus ice discharge (SMB-D) are very consistent. The ice discharge manifests itself mostly as a long-term trend, whereas seasonal mass variations are largely attributed to surface mass processes. The GrIS mass changes are mostly attributed to mass loss during summer. Summer mass changes are highly correlated with climate changes.
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Dissertations / Theses on the topic "Mass balance analysis"

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DeBuhr, Christopher Leonard. "Metamorphic petrology and mass balance analysis in the Bugaboo contact aureole." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0019/NQ49488.pdf.

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Laukkanen, Mikko. "Project Solaris - Mass and balance analysis tool for a solar powered UAV." Thesis, Mälardalen University, School of Innovation, Design and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-7449.

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Bergman, Ottar. "A Regional Analysis of Changing Climate Conditions and Glacier Mass Balance in Svalbard." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-383930.

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The Arctic archipelago of Svalbard has experienced among the greatest increases in temperature on Earth in the last few decades. The changing climatic conditions have a large impact on the glacier mass balance. This study makes use of a highresolution model dataset with data on climatic and glacier conditions on Svalbard from 1957 to 2018. The model dataset is used to analyse the spatiotemporal variability in glacier mass balance across Svalbard and linking those changes to long-term trends in meteorological conditions. The study is focused on the spatial gradients in trends between two regions in Svalbard, the coldest part of the archipelago, Nordaustlandet and the milder southern part of the main island Spitsbergen. The north eastern (NE) region is found to have a greater increase in annual air temperature over the simulation period with 5.5 °C compared to 3.5 °C for the south western (SW) region. The increase in annual summer temperatures is much smaller with a total increase of 1 °C for the NW and 1.5 °C for the SW. Both regions show a small, but significant, increase of precipitation. Relative humidity and cloud cover in the NE are increasing slightly over the time period, probably due to retreating sea ice cover. Glacier melt and runoff are increasing in both regions, which is contributing to significant negative trends in the mass balance. The increase in melt and run off is stronger in the SW than in the NE. There’s a strong correlation between summer air temperature and glacier mass balance, melt and runoff. Refreezing in the NE is decreasing much faster than in the SW. Refreezing is strongly correlated with annual air temperatures in the NE and not in the SW, probably due to lower temperatures in the NE region.
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Migliavacca, Alencar. "Balanço de massa, energia e exergia na produção intensiva de frangos de corte." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3150/tde-06122017-090731/.

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A produção brasileira de frangos de corte evidenciou-se com o sistema de produção integrada, ao elevar a eficiência e a qualidade na conversão de proteína animal. Contudo, devido à rápida evolução tecnológica com crescente demanda energética e a diversificação dos sistemas de produção em diferentes microclimas, elucidar os processos de conversão de massa e energia tornou-se uma tarefa desafiadora neste sistema de produção. Constantemente, pesquisadores, produtores e agroindústria buscam processos mais rentáveis, reduzindo a demanda em mão de obra e o impacto ambiental. No entanto, nunca foi feita uma avaliação integrada do sistema produtivo de frangos de corte, considerando-se os aspectos quantitativos, energéticos e ambientais. Deste modo, o objetivo deste trabalho é promover um detalhado balanço de massa e energia, além de avaliar por meio da análise exergética, a qualidade das conversões de energia no processo produtivo de frangos de corte. Com o levantamento de insumos, produtos e rejeitos diretos, vinculados ao ciclo de produção, foram quantificadas as vazões mássicas para os diferentes processos do ciclo e, aplicando-se a avaliação exergética, obteve-se um diagnóstico completo da quantidade e qualidade energética envolvidas. Considerando o cenário adotado, em termos mássicos, as maiores demandas identificadas para os insumos foram a água (69,2%) e a ração (24,9%). Na saída do processo, os Gases de Efeito Estufa (GEE)/particulados extraídos através da ventilação (39,4%), os gases de combustão da lenha (25,6%) e a cama (14,2%) formam os principais rejeitos. A massa de frangos representa 20% das saídas. Foi identificado que a relação entre o consumo de água e ração é função da temperatura. Em termos energéticos, as maiores contribuições identificadas para os insumos foram a ração (77,7%) acompanhada do material absorvente (9,7%) e da lenha (9,6%). Na saída do processo lideram as energias associadas aos frangos (33,2%) e da cama gerada (32,1%). O rendimento energético obtido para galpões convencionais foi de 27%. Os processos que mais destroem exergia dentro do ciclo produtivo são a formação da cama de frangos a partir das excretas (51,5% em convencionais e 48,2% em climatizados) e a combustão da lenha para aquecimento (21,9% em convencionais e 20,5% em climatizados). Além disso, foi estimado o rendimento de Segunda Lei para o ciclo próximo de 26%. Foram introduzidos os índices energético e exergético de produção permitindo a comparação entre diferentes sistemas. Como principal resíduo, a cama de frangos gerada no ciclo, quando reutilizada como insumo para aquecimento do próprio aviário na forma de briquetes, pode elevar as eficiências. Comparando-se as demandas médias para as duas formas de aquecimento, foi constatado que o uso do GLP é mais favorável ao ambiente se comparado à lenha, devido à forma direta de transferência de calor aos frangos. É aconselhável, em dias quentes, elevar a velocidade do ar, utilizando o resfriamento evaporativo somente em casos de elevada temperatura ambiente, pois a introdução de água eleva a exergia dissipada no ciclo.
Brazilian production of broilers has been highlighted with the implantation of the integrated production system, which improved the efficiency and quality in animal protein conversion. However, due to the rapid technological evolution with the increasing energy demand and the diversification of production systems in different microclimates, elucidating mass and energy conversion processes has become a challenging task regarding this production system. Constantly, researchers, producers and agribusiness look for more profitable processes, reducing the labour demand and environmental impact. However, an integrated evaluation of the productive system of broilers, considering the quantitative, energy and environmental aspects has never been carried out. Thus, this study aims at promoting a detailed mass and energy balance and to evaluate the quality of the energy conversions in the productive process of broilers by means of exergy analysis. With the survey of inputs, products and direct wastes, linked to the production cycle, the mass flow rates for the different processes of the cycle were quantified and a complete diagnosis of the quantity and quality energetic involved was obtained applying the exergy evaluation. Considering the scenario adopted, in mass terms, the greatest demands identified for the inputs were water (69.2%) and feed (24.9%). At the exit of the process, the greenhouse gases/dust extracted through ventilation (39.4%), the firewood combustion gases (25.6%) and the litter poultry generated (14.2%) are the main outputs. The broilers mass was quantified in 20%. The relation between water and feed consumption has shown to be the temperature. Regarding energy, the largest contribution identified for the inputs was feed (77.7%) followed by the absorbent (9.7%) and firewood (9.6%). At the exit of the process lead the energy associated with the broilers (33.2%) and the poultry litter generated (32.1%). The energy performance obtained for conventional shed was 27%. The processes of the largest exergy destroyed within the productive cycle are the litter poultry converted from excreta (51.5% in conventional and 48.2% in air conditioning) and the combustion of wood for heating (21.9% in conventional and 20.5% in air conditioning). In addition, the second law performance for the cycle was estimated in about 26%. The energy and exergy production index was introduced allowing for the comparison among different systems. As the main residue, the litter poultry generated in the cycle when reused as an input for heating the aviary itself in the form of briquettes, can increase these efficiencies. The use of LPG is more environmentally friendly compared to wood, considering the average demands for the too forms of heating, due to the direct form of heat transfer to the broilers. It is advisable, on hot days, to raise the air speed using the evaporative cooling only in cases of high ambient temperature, as the introduction of water raises the exergy dissipated in the cycle.
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Eriksson, Rehn Ida. "Mass balance and local characteristics of three glaciers in southern Norway, between 1980 and 2018 : An analysis of the mass balance and the local characteristics of Ålfotbreen, Storbreen and Gråsubreen." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-184671.

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Glaciers are known as climate indicators because of their sensitivity towards climatic perturbations and fluctuations. A majority of the world’s glaciers are currently melting as a response to climatic perturbations. Glaciers in Norway display the same pattern, and the loss of mass have accelerated during the 1990s to this day. The glaciers of interest in this paper is situated in a west to east transect with the maritime Ålfotbreen in the west, to the continental Gråsubreen in the east, with the intermediate Storbreen in between. Differences in the local climate have a significant impact on the future state of glaciers. This paper aims to compare the mass balance, mass turnover and mass balance sensitivity of the three glaciers of interest, between the years 1980 and 2018, to demonstrate the importance of the local climate and characteristics for glacial existence. Mass balance data series of each glaciers’ mass balance was analysed. In addition, development trends of the mean annual summer air temperature for respective glaciers’ region were also conducted. A literature review of relevant reports and publications will be presented and analysed to complement the result of this paper. The results of this paper indicate that the characteristics of respective glacier vary along the increasing continentality of the west to east transect, with the mass balance sensitivity decreasing from west to east. The mass turnover displayed varying patterns, between the years 1980 and 2018. ÅLF had the highest mass turnover for the period and GRÅ the smallest with STO in between. It can be concluded, based on the result of this paper, that the fate of glaciers depends on geographical location and local characteristics. The resemblance between Storbreen and Storglaciären, and the existence of Helagsglaciären who seem to survive against the odds, strengthens the importance of local characteristics.
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Woocay-Prieto, Arturo. "Groundwater hydrochemical facies, flowpaths and recharge determined by multivariate statistical, isotopic and chloride mass-balance methods." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Stärner, Nathalie. "Mass balance analysis of phosphorous in Motala Ström River Basin : A focus on lake Roxen and Glan." Thesis, Linköpings universitet, Tema vatten i natur och samhälle, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-81971.

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Phosphorous (P) has been found to be the limiting nutrient in freshwater systems, directly affecting rates of planktonic growth. The P circulation is very complex, and its pathways through lake systems are difficult to determine. Motala Ström is the biggest watercourse in the south-east of Sweden and an important source of P to the Baltic Sea. The aim of this study is to conduct a P mass balance analysis of the lakes Roxen and Glan over a period of time. The analysis will also include a quality control of the concentrations data. The P concentration data used in this investigation were collected from the Motala Ström River Association, consisting of seasonal or monthly concentration data of Tot-P during the period 1960-2010. Daily water flow data used in this study were modelled by the Swedish Meteorological and Hydrological Institute (SMHI) using the S-HYPE model. P concentration deviations from monthly averages at each sampling station were calculated, followed by a seasonal Mann Kendall trend analysis. At five out of eight sampling stations, negative trends were detected, indicating decreasing concentrations. The exception was the outflow from lake Glan, Stångån and Finspångsån. Linear interpolation of P concentration data was performed to create daily data for the period 1980-2010. Following interpolation, daily transport values were calculated and summed up to annual values. Lake Roxen has acted as a source of P during the whole period 1980-2010, except for one year. Lake Glan has acted as a source during 22 of the 31 years. There is a tendency of Glan to become more of a source over the years, which is in line with the deviation observations, but variation between years makes it necessary to analyse also future data in order to establish any possible trend in P transports. Before construction of wastewater treatment plants, the lakes were certainly sinks of phosphorus. But at least for Roxen, the switch from sink to source was completed before 1980.
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Magnusson, Hans. "From recovery boiler to integration of a textile fiber plant : Combination of mass balance analysis and chemical engineering." Licentiate thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-37266.

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Modern chemical technology is an efficient tool for solving problems, particularly within the complex environment of the pulp and paper industry, and the combination of experimental studies, mill data and mass balance calculations are of fundamental importance to the development of the industry. In this study various examples are presented, whereby chemical technology is of fundamental importance. It is well documented that under normal conditions the molten salt mixture from the kraft recovery boiler flows down into the dissolving tank without problems. However, in the case of  alternatives to the kraft recovery boiler, knowledge of more precise data of the molten salts is required for the design calculations. In this study the viscosity for the case of sodium carbonate and 30 mole% sulphide has been measured and is of the magnitude 2 – 3 cP at temperatures relevant for a recovery boiler, i.e. similar to water at room temperature. The presence of non-process elements (NPE) in a typical pulp mill has been investigated. The main input is with regards to the wood, and anticipated problems include; deposits in evaporators, high dead-load in liquor streams, plugging of the upper part of the recovery boiler and decreasing efficiency in the causticization department. Efficient green liquor clarification is of the greatest importance as an efficient kidney for many NPE. Mill data and calculations show that the magnesium added in the oxygen delignification does not form a closed loop. Integration of a prehydrolysis kraft pulp mill producing dissolving pulp with a plant producing viscose textile fiber could be highly beneficial. The prehydrolysis liquor will contain both sugars and acetic acid. It is however not possible to fully replace the sulphuric acid of the viscose spinning bath with acetic acid of own production. The sulphuric chemicals from the viscose plant can be partly taken care of in the kraft recovery area as well as the viscose plant which can be supplied with alkali and sulphuric acid. Zinc-containing effluents from the viscose plant can be treated with green liquor to precipitate zinc sulphide.
Modern chemical technology is an extremely efficient tool for solving problems particularly in a complicated environment such as the pulp and paper industry. Here, examples are studied during which chemical technology is of fundamental importance. At normal conditions the molten salt mixture from the kraft recovery boiler flows down into the dissolving tank without hindrance. However, for certain kraft recovery boiler alternatives, knowledge of more precise data of the molten salts is required. The viscosity for the case of sodium carbonate and 30 mole% sulphide has been measured and is of the magnitude 2 – 3 cP at relevant temperatures. The main input of non-process elements (NPE) is down to the wood, and known problems include deposits in evaporators and decreasing efficiency in the causticization department. Green liquor clarification is an efficient kidney for many NPE. Magnesium added in the oxygen delignification does not form a closed loop. Integration of a prehydrolysis kraft pulp mill producing dissolving pulp with a plant producing viscose textile fiber could be of significant interest, as the handling of both alkali and sulphuric compounds can be integrated. Problems will however arise as the capacity of the pulping line and the chemical recovery has to be adjusted.
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Spence, Joshua. "PERVIOUS CONCRETE: A HYDROLOGIC ANALYSIS FOR STORMWATER MANAGEMENT CREDIT." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4176.

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Portland Cement pervious concrete's ability to permit water infiltration has encouraged its use as a stormwater management tool. However, the material has suffered historically poor support due to a number of factors, including failures due to poor mix design and improper construction techniques, concern about lesser structural strength, concern about poor long term performance due to clogging of surface pores and undefined credit for stormwater management. This study focuses on long term performances of pervious concrete parking lots and their stormwater management credit. Before stormwater management credit could be estimated, it was necessary to develop a testing device to gather information from existing pervious concrete parking lots currently in use. Eight parking lots were examined to determine the infiltration rates of the pervious concrete, as well as to verify the soil makeup beneath pavement. A total of 30 cores were extracted from pervious concrete parking lots and evaluated for infiltration rates. Three of the sites had a pervious concrete section that included a gravel reservoir. Infiltration rates were measured using the application of an embedded single-ring infiltrometer. In an attempt to provide an estimate of credit, a mass balance model was created to be used for simulation of the hydrologic and hydraulic function of pervious concrete sections. The purpose of the model is to predict runoff and recharge volumes for different rainfall conditions and hydraulic properties of the concrete and the soil. The field derived hydraulic data were used to simulate infiltration volumes and rainfall excess given a year of rainfall as used in a mass balance operated within a spreadsheet. The results can be used for assessing stormwater management credit.
M.S.
Department of Civil and Environmental Engineering
Engineering and Computer Science
Civil Engineering
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Thuong, Nguyen Thi. "Heavy Metal Contamination in Water and Sediment of To Lich River in Inner City Hanoi." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180494.

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Books on the topic "Mass balance analysis"

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Dyurgerov, Mark. Glacier mass balance and regime: Data of measurements and analysis. Edited by Meier Mark, Armstrong Richard L. 1941-, and University of Colorado, Boulder. Institute of Arctic and Alpine Research. Boulder, Colo: Institute of Arctic and Alpine Research, University of Colorado, 2002.

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Vedanayagam, Samuel. Mass balance analysis of suspended solids in the Tualatin River. [Corvallis]: Oregon Water Resources Research Institute, 1995.

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Giovinetto, Mario B. Summary and analysis of surface mass balance compilations for Antarctica, 1960-1985. Columbus: Ohio State University Research Foundation, 1987.

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Tarmohamed, Yasmin. Ontario municipal sewage treatment plants mass balance project: Report-- metals. [S.l.]: MISA Advisory Committee, 1990.

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Tolvanen, Merja. Mass balance determination for trace elements at coal-, peat- and bark-fired power plants. Espoo [Finland]: VTT Technical Research Centre of Finland, 2004.

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Ibbeken, H. Source and sediment: A case study of provenance and mass balance at an active plate margin (Calabria, Southern Italy). Berlin: Springer-Verlag, 1991.

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A, Wenzel Leonard, ed. Chemical process analysis: Mass and energy balances. Englewood Cliffs,NJ: Prentice-Hall International, 1988.

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1923-, Wenzel Leonard A., ed. Chemical process analysis: Mass and energy balances. Englewood Cliffs, N.J: Prentice Hall, 1988.

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Giovinetto, Mario B. Summary and analyses of surface mass balance compilations for Antarctica, 1960-1985. Columbus, Ohio: Byrd Polar Research Center, the Ohio State University, 1987.

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Preikshot, David. Fishing for answers: Analysis of ecosystem dynamics, tropic shifts, and salmonid population changes in Puget Sound, WA, 1970-1999 : a report, prepared for the Northwest Indian Fisheries Commission, on an investigation of changes in the south Puget Sound ecosystem, from 1970 to 1999, using a dynamic mass balance model (Ecopath with Ecosim), with special reference to chinook salmon (Oncorhynchus tshawytsha) and coho salmon (O. kisutch). Vancouver, B.C: Fisheries Centre, University of British Columbia, 2001.

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Book chapters on the topic "Mass balance analysis"

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Lee, Kyun Hee, and Jung Hoe Kim. "Carbon Mass Balance Analysis of Sophorose Lipid Production by Torulopsis bombicola." In Biochemical Engineering for 2001, 228–30. Tokyo: Springer Japan, 1992. http://dx.doi.org/10.1007/978-4-431-68180-9_62.

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Canham, Charles D., and Michael L. Pace. "A Spatially Explicit, Mass-Balance Analysis of Watershed-Scale Controls on Lake Chemistry." In Real World Ecology, 209–33. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-77942-3_8.

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Mohanty, S., S. Sikder, and S. K. Dwivedy. "Non-linear Analysis of Rotational Inertial Double-Tuned Mass Damper by Harmonic Balance Method." In Advances in Mechanical Engineering, 1183–90. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0124-1_105.

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Geisler, Jan, Victoria Tianjing Yan, Stephan Grill, and Arjun Narayanan. "Mass Balance Imaging: A Phase Portrait Analysis for Characterizing Growth Kinetics of Biomolecular Condensates." In Methods in Molecular Biology, 413–24. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2663-4_21.

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Oh, Doo-Man, Patrick J. Sinko, and Gordon L. Amidon. "Predicting Oral Drug Absorption in Humans: A Macroscopic Mass Balance Approach for Passive and Carrier-Mediated Compounds." In Advanced Methods of Pharmacokinetic and Pharmacodynamic Systems Analysis, 3–11. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-9021-4_1.

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Lentz, D. R. "Mass-balance analysis of mineralized skarn systems: Implications for replacement processes, carbonate mobility, and permeability evolution." In Mineral Deposit Research: Meeting the Global Challenge, 421–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27946-6_110.

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Schell, Daniel J., Juan Carlos Sáez, Jenny Hamilton, Arun Tholudur, and James D. McMillan. "Use of Measurement Uncertainty Analysis to Assess Accuracy of Carbon Mass Balance Closure for a Cellulase Production Process." In Biotechnology for Fuels and Chemicals, 509–23. Totowa, NJ: Humana Press, 2002. http://dx.doi.org/10.1007/978-1-4612-0119-9_42.

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Elduayen-Echave, B., A. Ochoa de Eribe, I. Lizarralde, G. Sánchez, E. Ayesa, and P. Grau. "Sensitivity Analysis and Calibration with Bayesian Inference of a Mass-Based Discretized Population Balance Model for Struvite Precipitation." In Lecture Notes in Civil Engineering, 614–21. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58421-8_96.

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Jung, Joey, and Jiujun Zhang. "Analysis of Mass Balance, Energy Consumption, and Economics of the Closed-Loop Hydrometallurgical Recycling Waste/Spent Lithium-Ion Battery Cathode Active Materials." In Hydrometallurgical Recycling of Lithium-Ion Battery Materials, 147–66. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/97810032692050-5.

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Macelloni, Myrta Maria, Elisabetta Corte, Andrea Ajmar, Alberto Cina, Fabio Giulio Tonolo, Paolo Felice Maschio, and Isabella Nicole Pisoni. "Multi-platform, Multi-scale and Multi-temporal 4D Glacier Monitoring. The Rutor Glacier Case Study." In Geomatics for Green and Digital Transition, 392–404. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-17439-1_29.

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AbstractAt present most alpine glaciers are not in equilibrium with the current climate, as a result they are undergoing a dramatic mass loss. Monitoring glacial variations is crucial to assess the consequences of climate change on the territory. In this work different geomatics techniques are exploited to measure and monitor the Rutor glacier over the years. In this study two different techniques were adopted to generate 3 digital surface models (DSMs): aerial and satellite photogrammetry. Two photogrammetric aerial surveys were carried out: at the end of the hydrological year 2019/20 and at the end of the following hydrological year. Additionally, a very high-resolution satellite stereo pair, acquired by the Pléiades-1A platform in 2017, was processed to assess whether satellite images can be applied to extract the 3D surface of the Rutor glacier. In order to evaluate the Rutor glacier mass-balance throughout the years several reference points were positioned and measured before the 2021 aerial flight. Thanks to the presence of the materialized points the 2021 model is considered as the ‘Reference Model’ against which subsequent models can be compared for glacier analysis. This model was validated by means of a comparison with the authoritative Regional DSM based on LiDAR surveys. In alpine glaciers, the positioning of artificial square cross target in time invariant areas is crucial to enable a multitemporal 4D analysis. The use of very high-resolution satellite imagery allows large areas to be mapped in 3D, but with lower accuracies proportionally decreasing with respect to slope and exposure.
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Conference papers on the topic "Mass balance analysis"

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Pomykala, Joseph A., Bassam J. Jody, Jeffrey S. Spangenberger, and Edward J. Daniels. "Mass Balance and Composition Analysis of Shredder Residue." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-0527.

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Yang, Chun-De, and Xue-Lin Xu. "China's Urban Land Supply-Demand Balance Analysis." In 2009 International Conference on Management and Service Science (MASS). IEEE, 2009. http://dx.doi.org/10.1109/icmss.2009.5302376.

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Osgood-Jacobs, Logan, Akwasi A. Boateng, Peregrine Carlson, Charles A. Mullen, and Nelson Macken. "Mass Balance and Exergy Analysis of a Fast Pyrolysis System." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62319.

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Mass balance closure and exergetic efficiency is evaluated for a bench scale fast pyrolysis system. The USDA Agricultural Research Service (ARS) has developed this system for processing energy crops and agricultural residues for bio-oil (pyrolysis oil or pyrolysis liquids) production. Mass balance closure cannot be achieved due to the system size and complexity of inputs and outputs. A linear programming optimization model is developed to use the experimental data to achieve improved closure of elemental balances without losing the overall representation of the pyrolysis products. Having improved the mass balance, it is then possible to evaluate the exergy of the system. Exergy flows are computed using statistical relationships and other standard techniques. Computational details and results are discussed for switchgrass, a typical candidate biomass. Solutions for the minimum and maximum bio-oil outputs were generated. These particular results indicated that bio-oil accounted for approximately 10% of the loss mass. Considering all products as useful, the exergy destruction is approximately 20%. If the bio-oil alone is considered useful, the exergy destruction is about 40%. Further exercise of the model can be useful in evaluating mass losses and exergy for other feedstock and experimental runs.
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Arimoto, Haruka, Eitaro Miura, Shiori Watanabe, and Takahiro Chiba. "Consumer Attitudes toward Celebrity Advertising: Analysis through Balance Theory." In World Conference on Media and Mass Communication. The International Institute of Knowledge Management (TIIKM), 2017. http://dx.doi.org/10.17501/medcom.2017.2103.

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Arimoto, Haruka, Eitaro Miura, Shiori Watanabe, and Takahiro Chiba. "Consumer Attitudes toward Celebrity Advertising: Analysis through Balance Theory." In World Conference on Media and Mass Communication. TIIKM, 2016. http://dx.doi.org/10.17501/medcom.2017.3103.

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Cai, Ning, Shan-jie Zhang, and Lei Li. "Sustainable Project Management: A Balance Analysis Model of Effect." In 2009 International Conference on Management and Service Science (MASS). IEEE, 2009. http://dx.doi.org/10.1109/icmss.2009.5302357.

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Li, Xiuping, and Yaxiong Wu. "The Balance Analysis of Institutionalized Management and Human-Based Management." In 2011 International Conference on Management and Service Science (MASS 2011). IEEE, 2011. http://dx.doi.org/10.1109/icmss.2011.5998087.

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Chen, Wang, Guofu Li, and Feifan Ye. "Analysis of Industrial Cluster's Profit Based on the Cluster's Production Load Balance." In 2009 International Conference on Management and Service Science (MASS). IEEE, 2009. http://dx.doi.org/10.1109/icmss.2009.5301706.

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Tae Il Jang, Hak Kwan Kim, Eun Jung Lee, Seung Woo Park, and Chang Eun Park. "Mass Balance Analysis of Reclaimed Wastewater Irrigation on Paddy Fields in Korea." In 2009 Reno, Nevada, June 21 - June 24, 2009. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2009. http://dx.doi.org/10.13031/2013.27242.

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Chu, Wen-Ho. "Mass Analysis for the Space Station ECLSS Using the Balance Spreadsheet Method." In Intersociety Conference on Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1989. http://dx.doi.org/10.4271/891502.

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Reports on the topic "Mass balance analysis"

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Fletcher, D. THERMODYNAMIC AND MASS BALANCE ANALYSIS OF EXPANSIVE PHASE PRECIPITATION IN SALTSTONE. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/929104.

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Denham, M. THERMODYNAMIC AND MASS BALANCE ANALYSIS OF EXPANSIVE PHASE PRECIPITATION IN SALTSTONE. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/935435.

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Schlossnagle, Trevor H., Janae Wallace,, and Nathan Payne. Analysis of Septic-Tank Density for Four Communities in Iron County, Utah - Newcastle, Kanarraville, Summit, and Paragonah. Utah Geological Survey, December 2022. http://dx.doi.org/10.34191/ri-284.

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Iron County is a semi-rural area in southwestern Utah that is experiencing an increase in residential development. Although much of the development is on community sewer systems, many subdivisions use septic tank soil-absorption systems for wastewater disposal. Many of these septic-tank systems overlie the basin-fill deposits that compose the principal aquifer for the area. The purpose of our study is to provide tools for waterresource management and land-use planning. In this study we (1) characterize the water quality of four areas in Iron County (Newcastle, Kanarraville, Summit, and Paragonah) with emphasis on nutrients, and (2) provide a mass-balance analysis based on numbers of septic-tank systems, groundwater flow available for mixing, and baseline nitrate concentrations, and thereby recommend appropriate septic-system density requirements to limit water-quality degradation. We collected 57 groundwater samples and three surface water samples across the four study areas to establish baseline nitrate concentrations. The baseline nitrate concentrations for Newcastle, Kanarraville, Summit, and Paragonah are 1.51 mg/L, 1.42 mg/L, 2.2 mg/L, and 1.76 mg/L, respectively. We employed a mass-balance approach to determine septic-tank densities using existing septic systems and baseline nitrate concentrations for each region. Nitrogen in the form of nitrate is one of the principal indicators of pollution from septic tank soil-absorption systems. To provide recommended septic-system densities, we used a mass-balance approach in which the nitrogen mass from projected additional septic tanks is added to the current nitrogen mass and then diluted with groundwater flow available for mixing plus the water added by the septic-tank systems themselves. We used an allowable degradation of 1 mg/L with respect to nitrate. Groundwater flow volume available for mixing was calculated from existing hydrogeologic data. We used data from aquifer tests compiled from drinking water source protection documents to derive hydraulic conductivity from reported transmissivities. Potentiometric surface maps from existing publications and datasets were used to determine groundwater flow directions and hydraulic gradients. Our results using the mass balance approach indicate that the most appropriate recommended maximum septic-tank densities in Newcastle, Kanarraville, Summit, and Paragonah are 23 acres per system, 7 acres per system, 5 acres per system, and 11 acres per system, respectively. These recommendations are based on hydrogeologic parameters used to estimate groundwater flow volume. Public valley-wide sewer systems may be a better alternative to septic-tank systems where feasible.
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Lacerda Silva, P., G. R. Chalmers, A. M. M. Bustin, and R. M. Bustin. Gas geochemistry and the origins of H2S in the Montney Formation. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329794.

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The geology of the Montney Formation and the geochemistry of its produced fluids, including nonhydrocarbon gases such as hydrogen sulfide were investigated for both Alberta and BC play areas. Key parameters for understanding a complex petroleum system like the Montney play include changes in thickness, depth of burial, mass balance calculations, timing and magnitudes of paleotemperature exposure, as well as kerogen concentration and types to determine the distribution of hydrocarbon composition, H2S concentrations and CO2 concentrations. Results show that there is first-, second- and third- order variations in the maturation patterns that impact the hydrocarbon composition. Isomer ratio calculations for butane and propane, in combination with excess methane estimation from produced fluids, are powerful tools to highlight effects of migration in the hydrocarbon distribution. The present-day distribution of hydrocarbons is a result of fluid mixing between hydrocarbons generated in-situ with shorter-chained hydrocarbons (i.e., methane) migrated from deeper, more mature areas proximal to the deformation front, along structural elements like the Fort St. John Graben, as well as through areas of lithology with higher permeability. The BC Montney play appears to have hydrocarbon composition that reflects a larger contribution from in-situ generation, while the Montney play in Alberta has a higher proportion of its hydrocarbon volumes from migrated hydrocarbons. Hydrogen sulphide is observed to be laterally discontinuous and found in discrete zones or pockets. The locations of higher concentrations of hydrogen sulphide do not align with the sulphate-rich facies of the Charlie Lake Formation but can be seen to underlie areas of higher sulphate ion concentrations in the formation water. There is some alignment between CO2 and H2S, particularly south of Dawson Creek; however, the cross-plot of CO2 and H2S illustrates some deviation away from any correlation and there must be other processes at play (i.e., decomposition of kerogen or carbonate dissolution). The sources of sulphur in the produced H2S were investigated through isotopic analyses coupled with scanning electron microscopy, energy dispersive spectroscopy, and mineralogy by X-ray diffraction. The Montney Formation in BC can contain small discrete amounts of sulphur in the form of anhydrite as shown by XRD and SEM-EDX results. Sulphur isotopic analyses indicate that the most likely source of sulphur is from Triassic rocks, in particular, the Charlie Lake Formation, due to its close proximity, its high concentration of anhydrite (18-42%), and the evidence that dissolved sulphate ions migrated within the groundwater in fractures and transported anhydrite into the Halfway Formation and into the Montney Formation. The isotopic signature shows the sulphur isotopic ratio of the anhydrite in the Montney Formation is in the same range as the sulphur within the H2S gas and is a lighter ratio than what is found in Devonian anhydrite and H2S gas. This integrated study contributes to a better understanding of the hydrocarbon system for enhancing the efficiency of and optimizing the planning of drilling and production operations. Operators in BC should include mapping of the Charlie Lake evaporites and structural elements, three-dimensional seismic and sulphate ion concentrations in the connate water, when planning wells, in order to reduce the risk of encountering unexpected souring.
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